diff options
| author | Dave Airlie <airlied@redhat.com> | 2022-04-28 15:32:29 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2022-04-28 15:32:29 +1000 |
| commit | 9bda072a7bec278c424ad660373e69d8e4a3385d (patch) | |
| tree | 9082199d09fcdf1f2c1a350fef8837c1700e30c8 | |
| parent | 4eaf02db9c2680ca92af92e2de7b33c6e079b2cd (diff) | |
| parent | f15856d7de914595d0daa2c706f53a693b48e228 (diff) | |
Merge tag 'drm-intel-gt-next-2022-04-27' of git://anongit.freedesktop.org/drm/drm-intel into drm-next
UAPI Changes:
- GuC hwconfig support and query (John Harrison, Rodrigo Vivi, Tvrtko Ursulin)
- Sysfs support for multi-tile devices (Andi Shyti, Sujaritha Sundaresan)
- Per client GPU utilisation via fdinfo (Tvrtko Ursulin, Ashutosh Dixit)
- Add DRM_I915_QUERY_GEOMETRY_SUBSLICES (Matt Atwood)
Cross-subsystem Changes:
- Add GSC as a MEI auxiliary device (Tomas Winkler, Alexander Usyskin)
Core Changes:
- Document fdinfo format specification (Tvrtko Ursulin)
Driver Changes:
- Fix prime_mmap to work when using LMEM (Gwan-gyeong Mun)
- Fix vm open count and remove vma refcount (Thomas Hellström)
- Fixup setting screen_size (Matthew Auld)
- Opportunistically apply ALLOC_CONTIGIOUS (Matthew Auld)
- Limit where we apply TTM_PL_FLAG_CONTIGUOUS (Matthew Auld)
- Drop aux table invalidation on FlatCCS platforms (Matt Roper)
- Add missing boundary check in vm_access (Mastan Katragadda)
- Update topology dumps for Xe_HP (Matt Roper)
- Add support for steered register writes (Matt Roper)
- Add steering info to GuC register save/restore list (Daniele Ceraolo Spurio)
- Small PCI BAR enabling (Matthew Auld, Akeem G Abodunrin, CQ Tang)
- Add preemption changes for Wa_14015141709 (Akeem G Abodunrin)
- Add logical mapping for video decode engines (Matthew Brost)
- Don't evict unmappable VMAs when pinning with PIN_MAPPABLE (v2) (Vivek Kasireddy)
- GuC error capture support (Alan Previn, Daniele Ceraolo Spurio)
- avoid concurrent writes to aux_inv (Fei Yang)
- Add Wa_22014226127 (José Roberto de Souza)
- Sunset igpu legacy mmap support based on GRAPHICS_VER_FULL (Matt Roper)
- Evict and restore of compressed objects (Ramalingam C)
- Update to GuC version 70.1.1 (John Harrison)
- Add Wa_22011802037 force cs halt (Tilak Tangudu)
- Enable Wa_22011802037 for gen12 GuC based platforms (Umesh Nerlige Ramappa)
- GuC based workarounds for DG2 (Vinay Belgaumkar, John Harrison, Matthew Brost, José Roberto de Souza)
- consider min_page_size when migrating (Matthew Auld)
- Prep work for next GuC firmware release (John Harrison)
- Support platforms with CCS engines but no RCS (Matt Roper, Stuart Summers)
- Don't overallocate subslice storage (Matt Roper)
- Reduce stack usage in debugfs due to SSEU (John Harrison)
- Report steering details in debugfs (Matt Roper)
- Refactor some x86-ism out to prepare for non-x86 builds (Michael Cheng)
- add lmem_size modparam (CQ Tang)
- Refactor for non-x86 driver builds (Casey Bowman)
- Centralize computation of freq caps (Ashutosh Dixit)
- Update dma_buf_ops.unmap_dma_buf callback to use drm_gem_unmap_dma_buf() (Gwan-gyeong Mun)
- Limit the async bind to bind_async_flags (Matthew Auld)
- Stop checking for NULL vma->obj (Matthew Auld)
- Reduce overzealous alignment constraints for GGTT (Matthew Auld)
- Remove GEN12_SFC_DONE_MAX from register defs header (Matt Roper)
- Fix renamed struct field (Lucas De Marchi)
- Do not return '0' if there is nothing to return (Andi Shyti)
- fix i915_reg_t initialization (Jani Nikula)
- move the migration sanity check (Matthew Auld)
- handle more rounding in selftests (Matthew Auld)
- Perf and i915 query kerneldoc updates (Matt Roper)
- Use i915_probe_error instead of drm_err (Vinay Belgaumkar)
- sanity check object size in the buddy allocator (Matthew Auld)
- fixup selftests min_alignment usage (Matthew Auld)
- tweak selftests misaligned_case (Matthew Auld)
Signed-off-by: Dave Airlie <airlied@redhat.com>
# Conflicts:
# drivers/gpu/drm/i915/i915_vma.c
From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/Ymkfy8FjsG2JrodK@tursulin-mobl2
143 files changed, 8164 insertions, 2333 deletions
diff --git a/Documentation/gpu/drm-usage-stats.rst b/Documentation/gpu/drm-usage-stats.rst new file mode 100644 index 000000000000..6c9f166a8d6f --- /dev/null +++ b/Documentation/gpu/drm-usage-stats.rst @@ -0,0 +1,112 @@ +.. _drm-client-usage-stats: + +====================== +DRM client usage stats +====================== + +DRM drivers can choose to export partly standardised text output via the +`fops->show_fdinfo()` as part of the driver specific file operations registered +in the `struct drm_driver` object registered with the DRM core. + +One purpose of this output is to enable writing as generic as practicaly +feasible `top(1)` like userspace monitoring tools. + +Given the differences between various DRM drivers the specification of the +output is split between common and driver specific parts. Having said that, +wherever possible effort should still be made to standardise as much as +possible. + +File format specification +========================= + +- File shall contain one key value pair per one line of text. +- Colon character (`:`) must be used to delimit keys and values. +- All keys shall be prefixed with `drm-`. +- Whitespace between the delimiter and first non-whitespace character shall be + ignored when parsing. +- Neither keys or values are allowed to contain whitespace characters. +- Numerical key value pairs can end with optional unit string. +- Data type of the value is fixed as defined in the specification. + +Key types +--------- + +1. Mandatory, fully standardised. +2. Optional, fully standardised. +3. Driver specific. + +Data types +---------- + +- <uint> - Unsigned integer without defining the maximum value. +- <str> - String excluding any above defined reserved characters or whitespace. + +Mandatory fully standardised keys +--------------------------------- + +- drm-driver: <str> + +String shall contain the name this driver registered as via the respective +`struct drm_driver` data structure. + +Optional fully standardised keys +-------------------------------- + +- drm-pdev: <aaaa:bb.cc.d> + +For PCI devices this should contain the PCI slot address of the device in +question. + +- drm-client-id: <uint> + +Unique value relating to the open DRM file descriptor used to distinguish +duplicated and shared file descriptors. Conceptually the value should map 1:1 +to the in kernel representation of `struct drm_file` instances. + +Uniqueness of the value shall be either globally unique, or unique within the +scope of each device, in which case `drm-pdev` shall be present as well. + +Userspace should make sure to not double account any usage statistics by using +the above described criteria in order to associate data to individual clients. + +- drm-engine-<str>: <uint> ns + +GPUs usually contain multiple execution engines. Each shall be given a stable +and unique name (str), with possible values documented in the driver specific +documentation. + +Value shall be in specified time units which the respective GPU engine spent +busy executing workloads belonging to this client. + +Values are not required to be constantly monotonic if it makes the driver +implementation easier, but are required to catch up with the previously reported +larger value within a reasonable period. Upon observing a value lower than what +was previously read, userspace is expected to stay with that larger previous +value until a monotonic update is seen. + +- drm-engine-capacity-<str>: <uint> + +Engine identifier string must be the same as the one specified in the +drm-engine-<str> tag and shall contain a greater than zero number in case the +exported engine corresponds to a group of identical hardware engines. + +In the absence of this tag parser shall assume capacity of one. Zero capacity +is not allowed. + +- drm-memory-<str>: <uint> [KiB|MiB] + +Each possible memory type which can be used to store buffer objects by the +GPU in question shall be given a stable and unique name to be returned as the +string here. + +Value shall reflect the amount of storage currently consumed by the buffer +object belong to this client, in the respective memory region. + +Default unit shall be bytes with optional unit specifiers of 'KiB' or 'MiB' +indicating kibi- or mebi-bytes. + +=============================== +Driver specific implementations +=============================== + +:ref:`i915-usage-stats` diff --git a/Documentation/gpu/i915.rst b/Documentation/gpu/i915.rst index 0f08693d05cd..54060cd6c419 100644 --- a/Documentation/gpu/i915.rst +++ b/Documentation/gpu/i915.rst @@ -697,3 +697,31 @@ The style guide for ``i915_reg.h``. .. kernel-doc:: drivers/gpu/drm/i915/i915_reg.h :doc: The i915 register macro definition style guide + +.. _i915-usage-stats: + +i915 DRM client usage stats implementation +========================================== + +The drm/i915 driver implements the DRM client usage stats specification as +documented in :ref:`drm-client-usage-stats`. + +Example of the output showing the implemented key value pairs and entirety of +the currently possible format options: + +:: + + pos: 0 + flags: 0100002 + mnt_id: 21 + drm-driver: i915 + drm-pdev: 0000:00:02.0 + drm-client-id: 7 + drm-engine-render: 9288864723 ns + drm-engine-copy: 2035071108 ns + drm-engine-video: 0 ns + drm-engine-capacity-video: 2 + drm-engine-video-enhance: 0 ns + +Possible `drm-engine-` key names are: `render`, `copy`, `video` and +`video-enhance`. diff --git a/Documentation/gpu/index.rst b/Documentation/gpu/index.rst index b9c1214d8f23..b99dede9a5b1 100644 --- a/Documentation/gpu/index.rst +++ b/Documentation/gpu/index.rst @@ -10,6 +10,7 @@ Linux GPU Driver Developer's Guide drm-kms drm-kms-helpers drm-uapi + drm-usage-stats driver-uapi drm-client drivers diff --git a/MAINTAINERS b/MAINTAINERS index 558dfda0a772..4c2d6964b3da 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -9996,6 +9996,7 @@ S: Supported F: Documentation/driver-api/mei/* F: drivers/misc/mei/ F: drivers/watchdog/mei_wdt.c +F: include/linux/mei_aux.h F: include/linux/mei_cl_bus.h F: include/uapi/linux/mei.h F: samples/mei/* diff --git a/drivers/gpu/drm/i915/Kconfig b/drivers/gpu/drm/i915/Kconfig index 98c5450b8eac..aa1e7f0b1fe4 100644 --- a/drivers/gpu/drm/i915/Kconfig +++ b/drivers/gpu/drm/i915/Kconfig @@ -4,7 +4,7 @@ config DRM_I915 depends on DRM depends on X86 && PCI depends on !PREEMPT_RT - select INTEL_GTT + select INTEL_GTT if X86 select INTERVAL_TREE # we need shmfs for the swappable backing store, and in particular # the shmem_readpage() which depends upon tmpfs @@ -30,6 +30,7 @@ config DRM_I915 select VMAP_PFN select DRM_TTM select DRM_BUDDY + select AUXILIARY_BUS help Choose this option if you have a system that has "Intel Graphics Media Accelerator" or "HD Graphics" integrated graphics, diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile index 815589f8658c..cd0bf6806228 100644 --- a/drivers/gpu/drm/i915/Makefile +++ b/drivers/gpu/drm/i915/Makefile @@ -33,6 +33,7 @@ subdir-ccflags-y += -I$(srctree)/$(src) # core driver code i915-y += i915_driver.o \ + i915_drm_client.o \ i915_config.o \ i915_getparam.o \ i915_ioctl.o \ @@ -106,6 +107,8 @@ gt-y += \ gt/intel_gt_pm_debugfs.o \ gt/intel_gt_pm_irq.o \ gt/intel_gt_requests.o \ + gt/intel_gt_sysfs.o \ + gt/intel_gt_sysfs_pm.o \ gt/intel_gtt.o \ gt/intel_llc.o \ gt/intel_lrc.o \ @@ -125,6 +128,8 @@ gt-y += \ gt/intel_workarounds.o \ gt/shmem_utils.o \ gt/sysfs_engines.o +# x86 intel-gtt module support +gt-$(CONFIG_X86) += gt/intel_gt_gmch.o # autogenerated null render state gt-y += \ gt/gen6_renderstate.o \ @@ -185,9 +190,11 @@ i915-y += gt/uc/intel_uc.o \ gt/uc/intel_uc_fw.o \ gt/uc/intel_guc.o \ gt/uc/intel_guc_ads.o \ + gt/uc/intel_guc_capture.o \ gt/uc/intel_guc_ct.o \ gt/uc/intel_guc_debugfs.o \ gt/uc/intel_guc_fw.o \ + gt/uc/intel_guc_hwconfig.o \ gt/uc/intel_guc_log.o \ gt/uc/intel_guc_log_debugfs.o \ gt/uc/intel_guc_rc.o \ @@ -197,6 +204,9 @@ i915-y += gt/uc/intel_uc.o \ gt/uc/intel_huc_debugfs.o \ gt/uc/intel_huc_fw.o +# graphics system controller (GSC) support +i915-y += gt/intel_gsc.o + # modesetting core code i915-y += \ display/hsw_ips.o \ diff --git a/drivers/gpu/drm/i915/display/intel_dpt.c b/drivers/gpu/drm/i915/display/intel_dpt.c index 15b2716172f7..fb0e7e79e0cd 100644 --- a/drivers/gpu/drm/i915/display/intel_dpt.c +++ b/drivers/gpu/drm/i915/display/intel_dpt.c @@ -300,5 +300,5 @@ void intel_dpt_destroy(struct i915_address_space *vm) { struct i915_dpt *dpt = i915_vm_to_dpt(vm); - i915_vm_close(&dpt->vm); + i915_vm_put(&dpt->vm); } diff --git a/drivers/gpu/drm/i915/display/intel_fb.c b/drivers/gpu/drm/i915/display/intel_fb.c index e94923e9dbb1..9f5a6b79e95b 100644 --- a/drivers/gpu/drm/i915/display/intel_fb.c +++ b/drivers/gpu/drm/i915/display/intel_fb.c @@ -2029,7 +2029,7 @@ intel_user_framebuffer_create(struct drm_device *dev, /* object is backed with LMEM for discrete */ i915 = to_i915(obj->base.dev); - if (HAS_LMEM(i915) && !i915_gem_object_can_migrate(obj, INTEL_REGION_LMEM)) { + if (HAS_LMEM(i915) && !i915_gem_object_can_migrate(obj, INTEL_REGION_LMEM_0)) { /* object is "remote", not in local memory */ i915_gem_object_put(obj); return ERR_PTR(-EREMOTE); diff --git a/drivers/gpu/drm/i915/display/intel_fb_pin.c b/drivers/gpu/drm/i915/display/intel_fb_pin.c index a307b4993bcf..bd6e7c98e751 100644 --- a/drivers/gpu/drm/i915/display/intel_fb_pin.c +++ b/drivers/gpu/drm/i915/display/intel_fb_pin.c @@ -140,7 +140,7 @@ retry: if (!ret && phys_cursor) ret = i915_gem_object_attach_phys(obj, alignment); else if (!ret && HAS_LMEM(dev_priv)) - ret = i915_gem_object_migrate(obj, &ww, INTEL_REGION_LMEM); + ret = i915_gem_object_migrate(obj, &ww, INTEL_REGION_LMEM_0); /* TODO: Do we need to sync when migration becomes async? */ if (!ret) ret = i915_gem_object_pin_pages(obj); diff --git a/drivers/gpu/drm/i915/display/intel_fbdev.c b/drivers/gpu/drm/i915/display/intel_fbdev.c index 2cd62a187df3..221336178991 100644 --- a/drivers/gpu/drm/i915/display/intel_fbdev.c +++ b/drivers/gpu/drm/i915/display/intel_fbdev.c @@ -279,7 +279,7 @@ static int intelfb_create(struct drm_fb_helper *helper, /* Our framebuffer is the entirety of fbdev's system memory */ info->fix.smem_start = (unsigned long)(ggtt->gmadr.start + vma->node.start); - info->fix.smem_len = vma->node.size; + info->fix.smem_len = vma->size; } vaddr = i915_vma_pin_iomap(vma); @@ -290,7 +290,7 @@ static int intelfb_create(struct drm_fb_helper *helper, goto out_unpin; } info->screen_base = vaddr; - info->screen_size = vma->node.size; + info->screen_size = vma->size; drm_fb_helper_fill_info(info, &ifbdev->helper, sizes); diff --git a/drivers/gpu/drm/i915/display/intel_plane_initial.c b/drivers/gpu/drm/i915/display/intel_plane_initial.c index e207d12286b5..d10f27d0b7b0 100644 --- a/drivers/gpu/drm/i915/display/intel_plane_initial.c +++ b/drivers/gpu/drm/i915/display/intel_plane_initial.c @@ -3,6 +3,7 @@ * Copyright © 2021 Intel Corporation */ +#include "gem/i915_gem_region.h" #include "i915_drv.h" #include "intel_atomic_plane.h" #include "intel_display.h" @@ -46,16 +47,55 @@ static struct i915_vma * initial_plane_vma(struct drm_i915_private *i915, struct intel_initial_plane_config *plane_config) { - struct intel_memory_region *mem = i915->mm.stolen_region; + struct intel_memory_region *mem; struct drm_i915_gem_object *obj; struct i915_vma *vma; + resource_size_t phys_base; u32 base, size; + u64 pinctl; - if (!mem || plane_config->size == 0) + if (plane_config->size == 0) + return NULL; + + base = round_down(plane_config->base, I915_GTT_MIN_ALIGNMENT); + if (IS_DGFX(i915)) { + gen8_pte_t __iomem *gte = to_gt(i915)->ggtt->gsm; + gen8_pte_t pte; + + gte += base / I915_GTT_PAGE_SIZE; + + pte = ioread64(gte); + if (!(pte & GEN12_GGTT_PTE_LM)) { + drm_err(&i915->drm, + "Initial plane programming missing PTE_LM bit\n"); + return NULL; + } + + phys_base = pte & I915_GTT_PAGE_MASK; + mem = i915->mm.regions[INTEL_REGION_LMEM_0]; + + /* + * We don't currently expect this to ever be placed in the + * stolen portion. + */ + if (phys_base >= resource_size(&mem->region)) { + drm_err(&i915->drm, + "Initial plane programming using invalid range, phys_base=%pa\n", + &phys_base); + return NULL; + } + + drm_dbg(&i915->drm, + "Using phys_base=%pa, based on initial plane programming\n", + &phys_base); + } else { + phys_base = base; + mem = i915->mm.stolen_region; + } + + if (!mem) return NULL; - base = round_down(plane_config->base, - I915_GTT_MIN_ALIGNMENT); size = round_up(plane_config->base + plane_config->size, mem->min_page_size); size -= base; @@ -66,10 +106,11 @@ initial_plane_vma(struct drm_i915_private *i915, * features. */ if (IS_ENABLED(CONFIG_FRAMEBUFFER_CONSOLE) && + mem == i915->mm.stolen_region && size * 2 > i915->stolen_usable_size) return NULL; - obj = i915_gem_object_create_stolen_for_preallocated(i915, base, size); + obj = i915_gem_object_create_region_at(mem, phys_base, size, 0); if (IS_ERR(obj)) return NULL; @@ -99,7 +140,10 @@ initial_plane_vma(struct drm_i915_private *i915, if (IS_ERR(vma)) goto err_obj; - if (i915_ggtt_pin(vma, NULL, 0, PIN_MAPPABLE | PIN_OFFSET_FIXED | base)) + pinctl = PIN_GLOBAL | PIN_OFFSET_FIXED | base; + if (HAS_GMCH(i915)) + pinctl |= PIN_MAPPABLE; + if (i915_vma_pin(vma, 0, 0, pinctl)) goto err_obj; if (i915_gem_object_is_tiled(obj) && diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context.c b/drivers/gpu/drm/i915/gem/i915_gem_context.c index 5db83aaf93ee..ab4c5ab28e4d 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_context.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_context.c @@ -1031,23 +1031,44 @@ static void free_engines_rcu(struct rcu_head *rcu) free_engines(engines); } +static void accumulate_runtime(struct i915_drm_client *client, + struct i915_gem_engines *engines) +{ + struct i915_gem_engines_iter it; + struct intel_context *ce; + + if (!client) + return; + + /* Transfer accumulated runtime to the parent GEM context. */ + for_each_gem_engine(ce, engines, it) { + unsigned int class = ce->engine->uabi_class; + + GEM_BUG_ON(class >= ARRAY_SIZE(client->past_runtime)); + atomic64_add(intel_context_get_total_runtime_ns(ce), + &client->past_runtime[class]); + } +} + static int engines_notify(struct i915_sw_fence *fence, enum i915_sw_fence_notify state) { struct i915_gem_engines *engines = container_of(fence, typeof(*engines), fence); + struct i915_gem_context *ctx = engines->ctx; switch (state) { case FENCE_COMPLETE: if (!list_empty(&engines->link)) { - struct i915_gem_context *ctx = engines->ctx; unsigned long flags; spin_lock_irqsave(&ctx->stale.lock, flags); list_del(&engines->link); spin_unlock_irqrestore(&ctx->stale.lock, flags); } - i915_gem_context_put(engines->ctx); + accumulate_runtime(ctx->client, engines); + i915_gem_context_put(ctx); + break; case FENCE_FREE: @@ -1257,6 +1278,9 @@ static void i915_gem_context_release_work(struct work_struct *work) if (ctx->pxp_wakeref) intel_runtime_pm_put(&ctx->i915->runtime_pm, ctx->pxp_wakeref); + if (ctx->client) + i915_drm_client_put(ctx->client); + mutex_destroy(&ctx->engines_mutex); mutex_destroy(&ctx->lut_mutex); @@ -1467,7 +1491,7 @@ static void set_closed_name(struct i915_gem_context *ctx) static void context_close(struct i915_gem_context *ctx) { - struct i915_address_space *vm; + struct i915_drm_client *client; /* Flush any concurrent set_engines() */ mutex_lock(&ctx->engines_mutex); @@ -1480,19 +1504,6 @@ static void context_close(struct i915_gem_context *ctx) set_closed_name(ctx); - vm = ctx->vm; - if (vm) { - /* i915_vm_close drops the final reference, which is a bit too - * early and could result in surprises with concurrent - * operations racing with thist ctx close. Keep a full reference - * until the end. - */ - i915_vm_get(vm); - i915_vm_close(vm); - } - - ctx->file_priv = ERR_PTR(-EBADF); - /* * The LUT uses the VMA as a backpointer to unref the object, * so we need to clear the LUT before we close all the VMA (inside @@ -1500,10 +1511,19 @@ static void context_close(struct i915_gem_context *ctx) */ lut_close(ctx); + ctx->file_priv = ERR_PTR(-EBADF); + spin_lock(&ctx->i915->gem.contexts.lock); list_del(&ctx->link); spin_unlock(&ctx->i915->gem.contexts.lock); + client = ctx->client; + if (client) { + spin_lock(&client->ctx_lock); + list_del_rcu(&ctx->client_link); + spin_unlock(&client->ctx_lock); + } + mutex_unlock(&ctx->mutex); /* @@ -1598,12 +1618,8 @@ i915_gem_create_context(struct drm_i915_private *i915, } vm = &ppgtt->vm; } - if (vm) { - ctx->vm = i915_vm_open(vm); - - /* i915_vm_open() takes a reference */ - i915_vm_put(vm); - } + if (vm) + ctx->vm = vm; mutex_init(&ctx->engines_mutex); if (pc->num_user_engines >= 0) { @@ -1653,7 +1669,7 @@ err_engines: free_engines(e); err_vm: if (ctx->vm) - i915_vm_close(ctx->vm); + i915_vm_put(ctx->vm); err_ctx: kfree(ctx); return ERR_PTR(err); @@ -1680,6 +1696,8 @@ static void gem_context_register(struct i915_gem_context *ctx, ctx->file_priv = fpriv; ctx->pid = get_task_pid(current, PIDTYPE_PID); + ctx->client = i915_drm_client_get(fpriv->client); + snprintf(ctx->name, sizeof(ctx->name), "%s[%d]", current->comm, pid_nr(ctx->pid)); @@ -1687,6 +1705,10 @@ static void gem_context_register(struct i915_gem_context *ctx, old = xa_store(&fpriv->context_xa, id, ctx, GFP_KERNEL); WARN_ON(old); + spin_lock(&ctx->client->ctx_lock); + list_add_tail_rcu(&ctx->client_link, &ctx->client->ctx_list); + spin_unlock(&ctx->client->ctx_lock); + spin_lock(&i915->gem.contexts.lock); list_add_tail(&ctx->link, &i915->gem.contexts.list); spin_unlock(&i915->gem.contexts.lock); @@ -1837,7 +1859,7 @@ static int get_ppgtt(struct drm_i915_file_private *file_priv, if (err) return err; - i915_vm_open(vm); + i915_vm_get(vm); GEM_BUG_ON(id == 0); /* reserved for invalid/unassigned ppgtt */ args->value = id; diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context_types.h b/drivers/gpu/drm/i915/gem/i915_gem_context_types.h index 282cdb8a5c5a..cb78214a7dcd 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_context_types.h +++ b/drivers/gpu/drm/i915/gem/i915_gem_context_types.h @@ -293,6 +293,12 @@ struct i915_gem_context { /** @link: place with &drm_i915_private.context_list */ struct list_head link; + /** @client: struct i915_drm_client */ + struct i915_drm_client *client; + + /** @client_link: for linking onto &i915_drm_client.ctx_list */ + struct list_head client_link; + /** * @ref: reference count * diff --git a/drivers/gpu/drm/i915/gem/i915_gem_create.c b/drivers/gpu/drm/i915/gem/i915_gem_create.c index c6eb023d3d86..5802692ea604 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_create.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_create.c @@ -123,7 +123,7 @@ __i915_gem_object_create_user_ext(struct drm_i915_private *i915, u64 size, */ flags = I915_BO_ALLOC_USER; - ret = mr->ops->init_object(mr, obj, size, 0, flags); + ret = mr->ops->init_object(mr, obj, I915_BO_INVALID_OFFSET, size, 0, flags); if (ret) goto object_free; diff --git a/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c b/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c index 13917231ae81..f5062d0c6333 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c @@ -66,15 +66,6 @@ err: return ERR_PTR(ret); } -static void i915_gem_unmap_dma_buf(struct dma_buf_attachment *attachment, - struct sg_table *sg, - enum dma_data_direction dir) -{ - dma_unmap_sgtable(attachment->dev, sg, dir, DMA_ATTR_SKIP_CPU_SYNC); - sg_free_table(sg); - kfree(sg); -} - static int i915_gem_dmabuf_vmap(struct dma_buf *dma_buf, struct iosys_map *map) { @@ -102,11 +93,15 @@ static void i915_gem_dmabuf_vunmap(struct dma_buf *dma_buf, static int i915_gem_dmabuf_mmap(struct dma_buf *dma_buf, struct vm_area_struct *vma) { struct drm_i915_gem_object *obj = dma_buf_to_obj(dma_buf); + struct drm_i915_private *i915 = to_i915(obj->base.dev); int ret; if (obj->base.size < vma->vm_end - vma->vm_start) return -EINVAL; + if (HAS_LMEM(i915)) + return drm_gem_prime_mmap(&obj->base, vma); + if (!obj->base.filp) return -ENODEV; @@ -209,7 +204,7 @@ static const struct dma_buf_ops i915_dmabuf_ops = { .attach = i915_gem_dmabuf_attach, .detach = i915_gem_dmabuf_detach, .map_dma_buf = i915_gem_map_dma_buf, - .unmap_dma_buf = i915_gem_unmap_dma_buf, + .unmap_dma_buf = drm_gem_unmap_dma_buf, .release = drm_gem_dmabuf_release, .mmap = i915_gem_dmabuf_mmap, .vmap = i915_gem_dmabuf_vmap, diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c index fd0e15d9573c..b3383e047505 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c @@ -1321,10 +1321,8 @@ static void *reloc_vaddr(struct i915_vma *vma, static void clflush_write32(u32 *addr, u32 value, unsigned int flushes) { if (unlikely(flushes & (CLFLUSH_BEFORE | CLFLUSH_AFTER))) { - if (flushes & CLFLUSH_BEFORE) { - clflushopt(addr); - mb(); - } + if (flushes & CLFLUSH_BEFORE) + drm_clflush_virt_range(addr, sizeof(*addr)); *addr = value; @@ -1336,7 +1334,7 @@ static void clflush_write32(u32 *addr, u32 value, unsigned int flushes) * to ensure ordering of clflush wrt to the system. */ if (flushes & CLFLUSH_AFTER) - clflushopt(addr); + drm_clflush_virt_range(addr, sizeof(*addr)); } else *addr = value; } @@ -2690,6 +2688,11 @@ eb_select_engine(struct i915_execbuffer *eb) if (err) goto err; + if (!i915_vm_tryget(ce->vm)) { + err = -ENOENT; + goto err; + } + eb->context = ce; eb->gt = ce->engine->gt; @@ -2713,6 +2716,7 @@ eb_put_engine(struct i915_execbuffer *eb) { struct intel_context *child; + i915_vm_put(eb->context->vm); intel_gt_pm_put(eb->gt); for_each_child(eb->context, child) intel_context_put(child); diff --git a/drivers/gpu/drm/i915/gem/i915_gem_lmem.c b/drivers/gpu/drm/i915/gem/i915_gem_lmem.c index 02ed3b269326..8949fb0a944f 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_lmem.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_lmem.c @@ -102,7 +102,7 @@ __i915_gem_object_create_lmem_with_ps(struct drm_i915_private *i915, resource_size_t page_size, unsigned int flags) { - return i915_gem_object_create_region(i915->mm.regions[INTEL_REGION_LMEM], + return i915_gem_object_create_region(i915->mm.regions[INTEL_REGION_LMEM_0], size, page_size, flags); } @@ -137,6 +137,6 @@ i915_gem_object_create_lmem(struct drm_i915_private *i915, resource_size_t size, unsigned int flags) { - return i915_gem_object_create_region(i915->mm.regions[INTEL_REGION_LMEM], + return i915_gem_object_create_region(i915->mm.regions[INTEL_REGION_LMEM_0], size, 0, flags); } diff --git a/drivers/gpu/drm/i915/gem/i915_gem_mman.c b/drivers/gpu/drm/i915/gem/i915_gem_mman.c index c3ea243d414d..0c5c43852e24 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_mman.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_mman.c @@ -70,7 +70,7 @@ i915_gem_mmap_ioctl(struct drm_device *dev, void *data, * mmap ioctl is disallowed for all discrete platforms, * and for all platforms with GRAPHICS_VER > 12. */ - if (IS_DGFX(i915) || GRAPHICS_VER(i915) > 12) + if (IS_DGFX(i915) || GRAPHICS_VER_FULL(i915) > IP_VER(12, 0)) return -EOPNOTSUPP; if (args->flags & ~(I915_MMAP_WC)) diff --git a/drivers/gpu/drm/i915/gem/i915_gem_object.c b/drivers/gpu/drm/i915/gem/i915_gem_object.c index 747ac65e060f..06b1b188ce5a 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_object.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_object.c @@ -606,6 +606,9 @@ bool i915_gem_object_can_migrate(struct drm_i915_gem_object *obj, if (!mr) return false; + if (!IS_ALIGNED(obj->base.size, mr->min_page_size)) + return false; + if (obj->mm.region == mr) return true; diff --git a/drivers/gpu/drm/i915/gem/i915_gem_object_types.h b/drivers/gpu/drm/i915/gem/i915_gem_object_types.h index fd54eb8f4826..2c88bdb8ff7c 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_object_types.h +++ b/drivers/gpu/drm/i915/gem/i915_gem_object_types.h @@ -631,6 +631,8 @@ struct drm_i915_gem_object { struct drm_mm_node *stolen; + resource_size_t bo_offset; + unsigned long scratch; u64 encode; diff --git a/drivers/gpu/drm/i915/gem/i915_gem_region.c b/drivers/gpu/drm/i915/gem/i915_gem_region.c index 5866c88e4d02..f46ee16a323a 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_region.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_region.c @@ -29,11 +29,12 @@ void i915_gem_object_release_memory_region(struct drm_i915_gem_object *obj) mutex_unlock(&mem->objects.lock); } -struct drm_i915_gem_object * -i915_gem_object_create_region(struct intel_memory_region *mem, - resource_size_t size, - resource_size_t page_size, - unsigned int flags) +static struct drm_i915_gem_object * +__i915_gem_object_create_region(struct intel_memory_region *mem, + resource_size_t offset, + resource_size_t size, + resource_size_t page_size, + unsigned int flags) { struct drm_i915_gem_object *obj; resource_size_t default_page_size; @@ -64,6 +65,9 @@ i915_gem_object_create_region(struct intel_memory_region *mem, size = round_up(size, default_page_size); + if (default_page_size == size) + flags |= I915_BO_ALLOC_CONTIGUOUS; + GEM_BUG_ON(!size); GEM_BUG_ON(!IS_ALIGNED(size, I915_GTT_MIN_ALIGNMENT)); @@ -85,7 +89,7 @@ i915_gem_object_create_region(struct intel_memory_region *mem, if (default_page_size < mem->min_page_size) flags |= I915_BO_ALLOC_PM_EARLY; - err = mem->ops->init_object(mem, obj, size, page_size, flags); + err = mem->ops->init_object(mem, obj, offset, size, page_size, flags); if (err) goto err_object_free; @@ -97,6 +101,40 @@ err_object_free: return ERR_PTR(err); } +struct drm_i915_gem_object * +i915_gem_object_create_region(struct intel_memory_region *mem, + resource_size_t size, + resource_size_t page_size, + unsigned int flags) +{ + return __i915_gem_object_create_region(mem, I915_BO_INVALID_OFFSET, + size, page_size, flags); +} + +struct drm_i915_gem_object * +i915_gem_object_create_region_at(struct intel_memory_region *mem, + resource_size_t offset, + resource_size_t size, + unsigned int flags) +{ + GEM_BUG_ON(offset == I915_BO_INVALID_OFFSET); + + if (GEM_WARN_ON(!IS_ALIGNED(size, mem->min_page_size)) || + GEM_WARN_ON(!IS_ALIGNED(offset, mem->min_page_size))) + return ERR_PTR(-EINVAL); + + if (range_overflows(offset, size, resource_size(&mem->region))) + return ERR_PTR(-EINVAL); + + if (!(flags & I915_BO_ALLOC_GPU_ONLY) && + offset + size > mem->io_size && + !i915_ggtt_has_aperture(to_gt(mem->i915)->ggtt)) + return ERR_PTR(-ENOSPC); + + return __i915_gem_object_create_region(mem, offset, size, 0, + flags | I915_BO_ALLOC_CONTIGUOUS); +} + /** * i915_gem_process_region - Iterate over all objects of a region using ops * to process and optionally skip objects diff --git a/drivers/gpu/drm/i915/gem/i915_gem_region.h b/drivers/gpu/drm/i915/gem/i915_gem_region.h index fcaa12d657d4..2dfcc41c0170 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_region.h +++ b/drivers/gpu/drm/i915/gem/i915_gem_region.h @@ -14,6 +14,8 @@ struct sg_table; struct i915_gem_apply_to_region; +#define I915_BO_INVALID_OFFSET ((resource_size_t)-1) + /** * struct i915_gem_apply_to_region_ops - ops to use when iterating over all * region objects. @@ -56,6 +58,11 @@ i915_gem_object_create_region(struct intel_memory_region *mem, resource_size_t size, resource_size_t page_size, unsigned int flags); +struct drm_i915_gem_object * +i915_gem_object_create_region_at(struct intel_memory_region *mem, + resource_size_t offset, + resource_size_t size, + unsigned int flags); int i915_gem_process_region(struct intel_memory_region *mr, struct i915_gem_apply_to_region *apply); diff --git a/drivers/gpu/drm/i915/gem/i915_gem_shmem.c b/drivers/gpu/drm/i915/gem/i915_gem_shmem.c index c7541dc687c1..c2a3e388fcb4 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_shmem.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_shmem.c @@ -553,6 +553,7 @@ static int __create_shmem(struct drm_i915_private *i915, static int shmem_object_init(struct intel_memory_region *mem, struct drm_i915_gem_object *obj, + resource_size_t offset, resource_size_t size, resource_size_t page_size, unsigned int flags) diff --git a/drivers/gpu/drm/i915/gem/i915_gem_stolen.c b/drivers/gpu/drm/i915/gem/i915_gem_stolen.c index 2a225daa2b12..47b5e0e342ab 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_stolen.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_stolen.c @@ -12,6 +12,8 @@ #include "gem/i915_gem_lmem.h" #include "gem/i915_gem_region.h" +#include "gt/intel_gt.h" +#include "gt/intel_region_lmem.h" #include "i915_drv.h" #include "i915_gem_stolen.h" #include "i915_reg.h" @@ -493,7 +495,7 @@ static int i915_gem_init_stolen(struct intel_memory_region *mem) /* Exclude the reserved region from driver use */ mem->region.end = reserved_base - 1; - mem->io_size = resource_size(&mem->region); + mem->io_size = min(mem->io_size, resource_size(&mem->region)); /* It is possible for the reserved area to end before the end of stolen * memory, so just consider the start. */ @@ -680,6 +682,7 @@ static int __i915_gem_object_create_stolen(struct intel_memory_region *mem, static int _i915_gem_object_stolen_init(struct intel_memory_region *mem, struct drm_i915_gem_object *obj, + resource_size_t offset, resource_size_t size, resource_size_t page_size, unsigned int flags) @@ -694,12 +697,32 @@ static int _i915_gem_object_stolen_init(struct intel_memory_region *mem, if (size == 0) return -EINVAL; + /* + * With discrete devices, where we lack a mappable aperture there is no + * possible way to ever access this memory on the CPU side. + */ + if (mem->type == INTEL_MEMORY_STOLEN_LOCAL && !mem->io_size && + !(flags & I915_BO_ALLOC_GPU_ONLY)) + return -ENOSPC; + stolen = kzalloc(sizeof(*stolen), GFP_KERNEL); if (!stolen) return -ENOMEM; - ret = i915_gem_stolen_insert_node(i915, stolen, size, - mem->min_page_size); + if (offset != I915_BO_INVALID_OFFSET) { + drm_dbg(&i915->drm, + "creating preallocated stolen object: stolen_offset=%pa, size=%pa\n", + &offset, &size); + + stolen->start = offset; + stolen->size = size; + mutex_lock(&i915->mm.stolen_lock); + ret = drm_mm_reserve_node(&i915->mm.stolen, stolen); + mutex_unlock(&i915->mm.stolen_lock); + } else { + ret = i915_gem_stolen_insert_node(i915, stolen, size, + mem->min_page_size); + } if (ret) goto err_free; @@ -751,11 +774,6 @@ static int init_stolen_lmem(struct intel_memory_region *mem) if (GEM_WARN_ON(resource_size(&mem->region) == 0)) return -ENODEV; - if (!io_mapping_init_wc(&mem->iomap, - mem->io_start, - mem->io_size)) - return -EIO; - /* * TODO: For stolen lmem we mostly just care about populating the dsm * related bits and setting up the drm_mm allocator for the range. @@ -763,18 +781,26 @@ static int init_stolen_lmem(struct intel_memory_region *mem) */ err = i915_gem_init_stolen(mem); if (err) - goto err_fini; + return err; + + if (mem->io_size && !io_mapping_init_wc(&mem->iomap, + mem->io_start, + mem->io_size)) { + err = -EIO; + goto err_cleanup; + } return 0; -err_fini: - io_mapping_fini(&mem->iomap); +err_cleanup: + i915_gem_cleanup_stolen(mem->i915); return err; } static int release_stolen_lmem(struct intel_memory_region *mem) { - io_mapping_fini(&mem->iomap); + if (mem->io_size) + io_mapping_fini(&mem->iomap); i915_gem_cleanup_stolen(mem->i915); return 0; } @@ -791,25 +817,43 @@ i915_gem_stolen_lmem_setup(struct drm_i915_private *i915, u16 type, { struct intel_uncore *uncore = &i915->uncore; struct pci_dev *pdev = to_pci_dev(i915->drm.dev); + resource_size_t dsm_size, dsm_base, lmem_size; struct intel_memory_region *mem; + resource_size_t io_start, io_size; resource_size_t min_page_size; - resource_size_t io_start; - resource_size_t lmem_size; - u64 lmem_base; - lmem_base = intel_uncore_read64(uncore, GEN12_DSMBASE); - if (GEM_WARN_ON(lmem_base >= pci_resource_len(pdev, 2))) + if (WARN_ON_ONCE(instance)) return ERR_PTR(-ENODEV); - lmem_size = pci_resource_len(pdev, 2) - lmem_base; - io_start = pci_resource_start(pdev, 2) + lmem_base; + /* Use DSM base address instead for stolen memory */ + dsm_base = intel_uncore_read64(uncore, GEN12_DSMBASE); + if (IS_DG1(uncore->i915)) { + lmem_size = pci_resource_len(pdev, 2); + if (WARN_ON(lmem_size < dsm_base)) + return ERR_PTR(-ENODEV); + } else { + resource_size_t lmem_range; + + lmem_range = intel_gt_read_register(&i915->gt0, XEHPSDV_TILE0_ADDR_RANGE) & 0xFFFF; + lmem_size = lmem_range >> XEHPSDV_TILE_LMEM_RANGE_SHIFT; + lmem_size *= SZ_1G; + } + + dsm_size = lmem_size - dsm_base; + if (pci_resource_len(pdev, 2) < lmem_size) { + io_start = 0; + io_size = 0; + } else { + io_start = pci_resource_start(pdev, 2) + dsm_base; + io_size = dsm_size; + } min_page_size = HAS_64K_PAGES(i915) ? I915_GTT_PAGE_SIZE_64K : I915_GTT_PAGE_SIZE_4K; - mem = intel_memory_region_create(i915, lmem_base, lmem_size, + mem = intel_memory_region_create(i915, dsm_base, dsm_size, min_page_size, - io_start, lmem_size, + io_start, io_size, type, instance, &i915_region_stolen_lmem_ops); if (IS_ERR(mem)) @@ -823,6 +867,7 @@ i915_gem_stolen_lmem_setup(struct drm_i915_private *i915, u16 type, drm_dbg(&i915->drm, "Stolen Local memory IO start: %pa\n", &mem->io_start); + drm_dbg(&i915->drm, "Stolen Local DSM base: %pa\n", &dsm_base); intel_memory_region_set_name(mem, "stolen-local"); @@ -851,63 +896,6 @@ i915_gem_stolen_smem_setup(struct drm_i915_private *i915, u16 type, return mem; } -struct drm_i915_gem_object * -i915_gem_object_create_stolen_for_preallocated(struct drm_i915_private *i915, - resource_size_t stolen_offset, - resource_size_t size) -{ - struct intel_memory_region *mem = i915->mm.stolen_region; - struct drm_i915_gem_object *obj; - struct drm_mm_node *stolen; - int ret; - - if (!drm_mm_initialized(&i915->mm.stolen)) - return ERR_PTR(-ENODEV); - - drm_dbg(&i915->drm, - "creating preallocated stolen object: stolen_offset=%pa, size=%pa\n", - &stolen_offset, &size); - - /* KISS and expect everything to be page-aligned */ - if (GEM_WARN_ON(size == 0) || - GEM_WARN_ON(!IS_ALIGNED(size, mem->min_page_size)) || - GEM_WARN_ON(!IS_ALIGNED(stolen_offset, mem->min_page_size))) - return ERR_PTR(-EINVAL); - - stolen = kzalloc(sizeof(*stolen), GFP_KERNEL); - if (!stolen) - return ERR_PTR(-ENOMEM); - - stolen->start = stolen_offset; - stolen->size = size; - mutex_lock(&i915->mm.stolen_lock); - ret = drm_mm_reserve_node(&i915->mm.stolen, stolen); - mutex_unlock(&i915->mm.stolen_lock); - if (ret) - goto err_free; - - obj = i915_gem_object_alloc(); - if (!obj) { - ret = -ENOMEM; - goto err_stolen; - } - - ret = __i915_gem_object_create_stolen(mem, obj, stolen); - if (ret) - goto err_object_free; - - i915_gem_object_set_cache_coherency(obj, I915_CACHE_NONE); - return obj; - -err_object_free: - i915_gem_object_free(obj); -err_stolen: - i915_gem_stolen_remove_node(i915, stolen); -err_free: - kfree(stolen); - return ERR_PTR(ret); -} - bool i915_gem_object_is_stolen(const struct drm_i915_gem_object *obj) { return obj->ops == &i915_gem_object_stolen_ops; diff --git a/drivers/gpu/drm/i915/gem/i915_gem_stolen.h b/drivers/gpu/drm/i915/gem/i915_gem_stolen.h index ccdf7befc571..d5005a39d130 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_stolen.h +++ b/drivers/gpu/drm/i915/gem/i915_gem_stolen.h @@ -31,10 +31,6 @@ i915_gem_stolen_lmem_setup(struct drm_i915_private *i915, u16 type, struct drm_i915_gem_object * i915_gem_object_create_stolen(struct drm_i915_private *dev_priv, resource_size_t size); -struct drm_i915_gem_object * -i915_gem_object_create_stolen_for_preallocated(struct drm_i915_private *dev_priv, - resource_size_t stolen_offset, - resource_size_t size); bool i915_gem_object_is_stolen(const struct drm_i915_gem_object *obj); diff --git a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c index b9ae6b02f304..4c25d9b2f138 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c @@ -20,6 +20,7 @@ #include "gem/i915_gem_ttm.h" #include "gem/i915_gem_ttm_move.h" #include "gem/i915_gem_ttm_pm.h" +#include "gt/intel_gpu_commands.h" #define I915_TTM_PRIO_PURGE 0 #define I915_TTM_PRIO_NO_PAGES 1 @@ -126,14 +127,22 @@ i915_ttm_select_tt_caching(const struct drm_i915_gem_object *obj) static void i915_ttm_place_from_region(const struct intel_memory_region *mr, struct ttm_place *place, + resource_size_t offset, + resource_size_t size, unsigned int flags) { memset(place, 0, sizeof(*place)); place->mem_type = intel_region_to_ttm_type(mr); + if (mr->type == INTEL_MEMORY_SYSTEM) + return; + if (flags & I915_BO_ALLOC_CONTIGUOUS) place->flags |= TTM_PL_FLAG_CONTIGUOUS; - if (mr->io_size && mr->io_size < mr->total) { + if (offset != I915_BO_INVALID_OFFSET) { + place->fpfn = offset >> PAGE_SHIFT; + place->lpfn = place->fpfn + (size >> PAGE_SHIFT); + } else if (mr->io_size && mr->io_size < mr->total) { if (flags & I915_BO_ALLOC_GPU_ONLY) { place->flags |= TTM_PL_FLAG_TOPDOWN; } else { @@ -155,12 +164,14 @@ i915_ttm_placement_from_obj(const struct drm_i915_gem_object *obj, placement->num_placement = 1; i915_ttm_place_from_region(num_allowed ? obj->mm.placements[0] : - obj->mm.region, requested, flags); + obj->mm.region, requested, obj->bo_offset, + obj->base.size, flags); /* Cache this on object? */ placement->num_busy_placement = num_allowed; for (i = 0; i < placement->num_busy_placement; ++i) - i915_ttm_place_from_region(obj->mm.placements[i], busy + i, flags); + i915_ttm_place_from_region(obj->mm.placements[i], busy + i, + obj->bo_offset, obj->base.size, flags); if (num_allowed == 0) { *busy = *requested; @@ -255,12 +266,33 @@ static const struct i915_refct_sgt_ops tt_rsgt_ops = { .release = i915_ttm_tt_release }; +static inline bool +i915_gem_object_needs_ccs_pages(struct drm_i915_gem_object *obj) +{ + bool lmem_placement = false; + int i; + + for (i = 0; i < obj->mm.n_placements; i++) { + /* Compression is not allowed for the objects with smem placement */ + if (obj->mm.placements[i]->type == INTEL_MEMORY_SYSTEM) + return false; + if (!lmem_placement && + obj->mm.placements[i]->type == INTEL_MEMORY_LOCAL) + lmem_placement = true; + } + + return lmem_placement; +} + static struct ttm_tt *i915_ttm_tt_create(struct ttm_buffer_object *bo, uint32_t page_flags) { + struct drm_i915_private *i915 = container_of(bo->bdev, typeof(*i915), + bdev); struct ttm_resource_manager *man = ttm_manager_type(bo->bdev, bo->resource->mem_type); struct drm_i915_gem_object *obj = i915_ttm_to_gem(bo); + unsigned long ccs_pages = 0; enum ttm_caching caching; struct i915_ttm_tt *i915_tt; int ret; @@ -283,7 +315,12 @@ static struct ttm_tt *i915_ttm_tt_create(struct ttm_buffer_object *bo, i915_tt->is_shmem = true; } - ret = ttm_tt_init(&i915_tt->ttm, bo, page_flags, caching, 0); + if (HAS_FLAT_CCS(i915) && i915_gem_object_needs_ccs_pages(obj)) + ccs_pages = DIV_ROUND_UP(DIV_ROUND_UP(bo->base.size, + NUM_BYTES_PER_CCS_BYTE), + PAGE_SIZE); + + ret = ttm_tt_init(&i915_tt->ttm, bo, page_flags, caching, ccs_pages); if (ret) goto err_free; @@ -763,6 +800,7 @@ static int __i915_ttm_get_pages(struct drm_i915_gem_object *obj, i915_sg_dma_sizes(rsgt->table.sgl)); } + GEM_BUG_ON(bo->ttm && ((obj->base.size >> PAGE_SHIFT) < bo->ttm->num_pages)); i915_ttm_adjust_lru(obj); return ret; } @@ -802,7 +840,8 @@ static int __i915_ttm_migrate(struct drm_i915_gem_object *obj, struct ttm_placement placement; int ret; - i915_ttm_place_from_region(mr, &requested, flags); + i915_ttm_place_from_region(mr, &requested, obj->bo_offset, + obj->base.size, flags); placement.num_placement = 1; placement.num_busy_placement = 1; placement.placement = &requested; @@ -1142,6 +1181,7 @@ void i915_ttm_bo_destroy(struct ttm_buffer_object *bo) */ int __i915_gem_ttm_object_init(struct intel_memory_region *mem, struct drm_i915_gem_object *obj, + resource_size_t offset, resource_size_t size, resource_size_t page_size, unsigned int flags) @@ -1158,6 +1198,8 @@ int __i915_gem_ttm_object_init(struct intel_memory_region *mem, drm_gem_private_object_init(&i915->drm, &obj->base, size); i915_gem_object_init(obj, &i915_gem_ttm_obj_ops, &lock_class, flags); + obj->bo_offset = offset; + /* Don't put on a region list until we're either locked or fully initialized. */ obj->mm.region = mem; INIT_LIST_HEAD(&obj->mm.region_link); diff --git a/drivers/gpu/drm/i915/gem/i915_gem_ttm.h b/drivers/gpu/drm/i915/gem/i915_gem_ttm.h index 9d698ad00853..73e371aa3850 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_ttm.h +++ b/drivers/gpu/drm/i915/gem/i915_gem_ttm.h @@ -45,6 +45,7 @@ i915_ttm_to_gem(struct ttm_buffer_object *bo) int __i915_gem_ttm_object_init(struct intel_memory_region *mem, struct drm_i915_gem_object *obj, + resource_size_t offset, resource_size_t size, resource_size_t page_size, unsigned int flags); diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c index b4275b55e5b8..62c61af77a42 100644 --- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c +++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c @@ -88,7 +88,7 @@ out: static int igt_dmabuf_import_same_driver_lmem(void *arg) { struct drm_i915_private *i915 = arg; - struct intel_memory_region *lmem = i915->mm.regions[INTEL_REGION_LMEM]; + struct intel_memory_region *lmem = i915->mm.regions[INTEL_REGION_LMEM_0]; struct drm_i915_gem_object *obj; struct drm_gem_object *import; struct dma_buf *dmabuf; @@ -253,10 +253,10 @@ static int igt_dmabuf_import_same_driver_lmem_smem(void *arg) struct drm_i915_private *i915 = arg; struct intel_memory_region *regions[2]; - if (!i915->mm.regions[INTEL_REGION_LMEM]) + if (!i915->mm.regions[INTEL_REGION_LMEM_0]) return 0; - regions[0] = i915->mm.regions[INTEL_REGION_LMEM]; + regions[0] = i915->mm.regions[INTEL_REGION_LMEM_0]; regions[1] = i915->mm.regions[INTEL_REGION_SMEM]; return igt_dmabuf_import_same_driver(i915, regions, 2); } diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_migrate.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_migrate.c index 0ad443a90c8b..801af51aff62 100644 --- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_migrate.c +++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_migrate.c @@ -47,14 +47,16 @@ static int igt_create_migrate(struct intel_gt *gt, enum intel_region_id src, { struct drm_i915_private *i915 = gt->i915; struct intel_memory_region *src_mr = i915->mm.regions[src]; + struct intel_memory_region *dst_mr = i915->mm.regions[dst]; struct drm_i915_gem_object *obj; struct i915_gem_ww_ctx ww; int err = 0; GEM_BUG_ON(!src_mr); + GEM_BUG_ON(!dst_mr); /* Switch object backing-store on create */ - obj = i915_gem_object_create_region(src_mr, PAGE_SIZE, 0, 0); + obj = i915_gem_object_create_region(src_mr, dst_mr->min_page_size, 0, 0); if (IS_ERR(obj)) return PTR_ERR(obj); @@ -92,17 +94,17 @@ static int igt_create_migrate(struct intel_gt *gt, enum intel_region_id src, static int igt_smem_create_migrate(void *arg) { - return igt_create_migrate(arg, INTEL_REGION_LMEM, INTEL_REGION_SMEM); + return igt_create_migrate(arg, INTEL_REGION_LMEM_0, INTEL_REGION_SMEM); } static int igt_lmem_create_migrate(void *arg) { - return igt_create_migrate(arg, INTEL_REGION_SMEM, INTEL_REGION_LMEM); + return igt_create_migrate(arg, INTEL_REGION_SMEM, INTEL_REGION_LMEM_0); } static int igt_same_create_migrate(void *arg) { - return igt_create_migrate(arg, INTEL_REGION_LMEM, INTEL_REGION_LMEM); + return igt_create_migrate(arg, INTEL_REGION_LMEM_0, INTEL_REGION_LMEM_0); } static int lmem_pages_migrate_one(struct i915_gem_ww_ctx *ww, @@ -152,7 +154,7 @@ static int lmem_pages_migrate_one(struct i915_gem_ww_ctx *ww, } } else { - err = i915_gem_object_migrate(obj, ww, INTEL_REGION_LMEM); + err = i915_gem_object_migrate(obj, ww, INTEL_REGION_LMEM_0); if (err) { pr_err("Object failed migration to lmem\n"); if (err) diff --git a/drivers/gpu/drm/i915/gem/selftests/mock_context.c b/drivers/gpu/drm/i915/gem/selftests/mock_context.c index 6d6082b5f31f..8ac6726ec16b 100644 --- a/drivers/gpu/drm/i915/gem/selftests/mock_context.c +++ b/drivers/gpu/drm/i915/gem/selftests/mock_context.c @@ -42,8 +42,7 @@ mock_context(struct drm_i915_private *i915, if (!ppgtt) goto err_free; - ctx->vm = i915_vm_open(&ppgtt->vm); - i915_vm_put(&ppgtt->vm); + ctx->vm = &ppgtt->vm; } mutex_init(&ctx->engines_mutex); @@ -59,7 +58,7 @@ mock_context(struct drm_i915_private *i915, err_vm: if (ctx->vm) - i915_vm_close(ctx->vm); + i915_vm_put(ctx->vm); err_free: kfree(ctx); return NULL; diff --git a/drivers/gpu/drm/i915/gt/gen6_ppgtt.c b/drivers/gpu/drm/i915/gt/gen6_ppgtt.c index 871fe7bda0e0..1bb766c79dcb 100644 --- a/drivers/gpu/drm/i915/gt/gen6_ppgtt.c +++ b/drivers/gpu/drm/i915/gt/gen6_ppgtt.c @@ -322,7 +322,7 @@ int gen6_ppgtt_pin(struct i915_ppgtt *base, struct i915_gem_ww_ctx *ww) struct gen6_ppgtt *ppgtt = to_gen6_ppgtt(base); int err; - GEM_BUG_ON(!atomic_read(&ppgtt->base.vm.open)); + GEM_BUG_ON(!kref_read(&ppgtt->base.vm.ref)); /* * Workaround the limited maximum vma->pin_count and the aliasing_ppgtt diff --git a/drivers/gpu/drm/i915/gt/gen8_engine_cs.c b/drivers/gpu/drm/i915/gt/gen8_engine_cs.c index b1b9c3fd7bf9..9529c5455bc3 100644 --- a/drivers/gpu/drm/i915/gt/gen8_engine_cs.c +++ b/drivers/gpu/drm/i915/gt/gen8_engine_cs.c @@ -6,7 +6,6 @@ #include "gen8_engine_cs.h" #include "i915_drv.h" #include "intel_gpu_commands.h" -#include "intel_gt_regs.h" #include "intel_lrc.h" #include "intel_ring.h" @@ -165,33 +164,9 @@ static u32 preparser_disable(bool state) return MI_ARB_CHECK | 1 << 8 | state; } -static i915_reg_t aux_inv_reg(const struct intel_engine_cs *engine) +u32 *gen12_emit_aux_table_inv(u32 *cs, const i915_reg_t inv_reg) { - static const i915_reg_t vd[] = { - GEN12_VD0_AUX_NV, - GEN12_VD1_AUX_NV, - GEN12_VD2_AUX_NV, - GEN12_VD3_AUX_NV, - }; - - static const i915_reg_t ve[] = { - GEN12_VE0_AUX_NV, - GEN12_VE1_AUX_NV, - }; - - if (engine->class == VIDEO_DECODE_CLASS) - return vd[engine->instance]; - - if (engine->class == VIDEO_ENHANCEMENT_CLASS) - return ve[engine->instance]; - - GEM_BUG_ON("unknown aux_inv reg\n"); - return INVALID_MMIO_REG; -} - -static u32 *gen12_emit_aux_table_inv(const i915_reg_t inv_reg, u32 *cs) -{ - *cs++ = MI_LOAD_REGISTER_IMM(1); + *cs++ = MI_LOAD_REGISTER_IMM(1) | MI_LRI_MMIO_REMAP_EN; *cs++ = i915_mmio_reg_offset(inv_reg); *cs++ = AUX_INV; *cs++ = MI_NOOP; @@ -236,7 +211,7 @@ int gen12_emit_flush_rcs(struct i915_request *rq, u32 mode) if (mode & EMIT_INVALIDATE) { u32 flags = 0; - u32 *cs; + u32 *cs, count; flags |= PIPE_CONTROL_COMMAND_CACHE_INVALIDATE; flags |= PIPE_CONTROL_TLB_INVALIDATE; @@ -254,7 +229,12 @@ int gen12_emit_flush_rcs(struct i915_request *rq, u32 mode) if (engine->class == COMPUTE_CLASS) flags &= ~PIPE_CONTROL_3D_FLAGS; - cs = intel_ring_begin(rq, 8 + 4); + if (!HAS_FLAT_CCS(rq->engine->i915)) + count = 8 + 4; + else + count = 8; + + cs = intel_ring_begin(rq, count); if (IS_ERR(cs)) return PTR_ERR(cs); @@ -267,8 +247,10 @@ int gen12_emit_flush_rcs(struct i915_request *rq, u32 mode) cs = gen8_emit_pipe_control(cs, flags, LRC_PPHWSP_SCRATCH_ADDR); - /* hsdes: 1809175790 */ - cs = gen12_emit_aux_table_inv(GEN12_GFX_CCS_AUX_NV, cs); + if (!HAS_FLAT_CCS(rq->engine->i915)) { + /* hsdes: 1809175790 */ + cs = gen12_emit_aux_table_inv(cs, GEN12_GFX_CCS_AUX_NV); + } *cs++ = preparser_disable(false); intel_ring_advance(rq, cs); @@ -283,12 +265,17 @@ int gen12_emit_flush_xcs(struct i915_request *rq, u32 mode) u32 cmd, *cs; cmd = 4; - if (mode & EMIT_INVALIDATE) + if (mode & EMIT_INVALIDATE) { cmd += 2; - if (mode & EMIT_INVALIDATE) - aux_inv = rq->engine->mask & ~BIT(BCS0); - if (aux_inv) - cmd += 2 * hweight32(aux_inv) + 2; + + if (!HAS_FLAT_CCS(rq->engine->i915) && + (rq->engine->class == VIDEO_DECODE_CLASS || + rq->engine->class == VIDEO_ENHANCEMENT_CLASS)) { + aux_inv = rq->engine->mask & ~BIT(BCS0); + if (aux_inv) + cmd += 4; + } + } cs = intel_ring_begin(rq, cmd); if (IS_ERR(cs)) @@ -319,15 +306,10 @@ int gen12_emit_flush_xcs(struct i915_request *rq, u32 mode) *cs++ = 0; /* value */ if (aux_inv) { /* hsdes: 1809175790 */ - struct intel_engine_cs *engine; - unsigned int tmp; - - *cs++ = MI_LOAD_REGISTER_IMM(hweight32(aux_inv)); - for_each_engine_masked(engine, rq->engine->gt, aux_inv, tmp) { - *cs++ = i915_mmio_reg_offset(aux_inv_reg(engine)); - *cs++ = AUX_INV; - } - *cs++ = MI_NOOP; + if (rq->engine->class == VIDEO_DECODE_CLASS) + cs = gen12_emit_aux_table_inv(cs, GEN12_VD0_AUX_NV); + else + cs = gen12_emit_aux_table_inv(cs, GEN12_VE0_AUX_NV); } if (mode & EMIT_INVALIDATE) @@ -601,6 +583,43 @@ static u32 *gen12_emit_preempt_busywait(struct i915_request *rq, u32 *cs) return cs; } +/* Wa_14014475959:dg2 */ +#define CCS_SEMAPHORE_PPHWSP_OFFSET 0x540 +static u32 ccs_semaphore_offset(struct i915_request *rq) +{ + return i915_ggtt_offset(rq->context->state) + + (LRC_PPHWSP_PN * PAGE_SIZE) + CCS_SEMAPHORE_PPHWSP_OFFSET; +} + +/* Wa_14014475959:dg2 */ +static u32 *ccs_emit_wa_busywait(struct i915_request *rq, u32 *cs) +{ + int i; + + *cs++ = MI_ATOMIC_INLINE | MI_ATOMIC_GLOBAL_GTT | MI_ATOMIC_CS_STALL | + MI_ATOMIC_MOVE; + *cs++ = ccs_semaphore_offset(rq); + *cs++ = 0; + *cs++ = 1; + + /* + * When MI_ATOMIC_INLINE_DATA set this command must be 11 DW + (1 NOP) + * to align. 4 DWs above + 8 filler DWs here. + */ + for (i = 0; i < 8; ++i) + *cs++ = 0; + + *cs++ = MI_SEMAPHORE_WAIT | + MI_SEMAPHORE_GLOBAL_GTT | + MI_SEMAPHORE_POLL | + MI_SEMAPHORE_SAD_EQ_SDD; + *cs++ = 0; + *cs++ = ccs_semaphore_offset(rq); + *cs++ = 0; + + return cs; +} + static __always_inline u32* gen12_emit_fini_breadcrumb_tail(struct i915_request *rq, u32 *cs) { @@ -611,6 +630,10 @@ gen12_emit_fini_breadcrumb_tail(struct i915_request *rq, u32 *cs) !intel_uc_uses_guc_submission(&rq->engine->gt->uc)) cs = gen12_emit_preempt_busywait(rq, cs); + /* Wa_14014475959:dg2 */ + if (intel_engine_uses_wa_hold_ccs_switchout(rq->engine)) + cs = ccs_emit_wa_busywait(rq, cs); + rq->tail = intel_ring_offset(rq, cs); assert_ring_tail_valid(rq->ring, rq->tail); diff --git a/drivers/gpu/drm/i915/gt/gen8_engine_cs.h b/drivers/gpu/drm/i915/gt/gen8_engine_cs.h index cc6e21d3662a..107ab42539ab 100644 --- a/drivers/gpu/drm/i915/gt/gen8_engine_cs.h +++ b/drivers/gpu/drm/i915/gt/gen8_engine_cs.h @@ -10,7 +10,7 @@ #include <linux/types.h> #include "i915_gem.h" /* GEM_BUG_ON */ - +#include "intel_gt_regs.h" #include "intel_gpu_commands.h" struct i915_request; @@ -38,6 +38,8 @@ u32 *gen8_emit_fini_breadcrumb_rcs(struct i915_request *rq, u32 *cs); u32 *gen11_emit_fini_breadcrumb_rcs(struct i915_request *rq, u32 *cs); u32 *gen12_emit_fini_breadcrumb_rcs(struct i915_request *rq, u32 *cs); +u32 *gen12_emit_aux_table_inv(u32 *cs, const i915_reg_t inv_reg); + static inline u32 * __gen8_emit_pipe_control(u32 *batch, u32 flags0, u32 flags1, u32 offset) { diff --git a/drivers/gpu/drm/i915/gt/gen8_ppgtt.c b/drivers/gpu/drm/i915/gt/gen8_ppgtt.c index f574da00eff1..c7bd5d71b03e 100644 --- a/drivers/gpu/drm/i915/gt/gen8_ppgtt.c +++ b/drivers/gpu/drm/i915/gt/gen8_ppgtt.c @@ -454,11 +454,11 @@ gen8_ppgtt_insert_pte(struct i915_ppgtt *ppgtt, pd = pdp->entry[gen8_pd_index(idx, 2)]; } - clflush_cache_range(vaddr, PAGE_SIZE); + drm_clflush_virt_range(vaddr, PAGE_SIZE); vaddr = px_vaddr(i915_pt_entry(pd, gen8_pd_index(idx, 1))); } } while (1); - clflush_cache_range(vaddr, PAGE_SIZE); + drm_clflush_virt_range(vaddr, PAGE_SIZE); return idx; } @@ -631,7 +631,7 @@ static void gen8_ppgtt_insert_huge(struct i915_address_space *vm, } } while (rem >= page_size && index < I915_PDES); - clflush_cache_range(vaddr, PAGE_SIZE); + drm_clflush_virt_range(vaddr, PAGE_SIZE); /* * Is it safe to mark the 2M block as 64K? -- Either we have @@ -647,7 +647,7 @@ static void gen8_ppgtt_insert_huge(struct i915_address_space *vm, I915_GTT_PAGE_SIZE_2M)))) { vaddr = px_vaddr(pd); vaddr[maybe_64K] |= GEN8_PDE_IPS_64K; - clflush_cache_range(vaddr, PAGE_SIZE); + drm_clflush_virt_range(vaddr, PAGE_SIZE); page_size = I915_GTT_PAGE_SIZE_64K; /* @@ -668,7 +668,7 @@ static void gen8_ppgtt_insert_huge(struct i915_address_space *vm, for (i = 1; i < index; i += 16) memset64(vaddr + i, encode, 15); - clflush_cache_range(vaddr, PAGE_SIZE); + drm_clflush_virt_range(vaddr, PAGE_SIZE); } } @@ -722,7 +722,7 @@ static void gen8_ppgtt_insert_entry(struct i915_address_space *vm, vaddr = px_vaddr(pt); vaddr[gen8_pd_index(idx, 0)] = gen8_pte_encode(addr, level, flags); - clflush_cache_range(&vaddr[gen8_pd_index(idx, 0)], sizeof(*vaddr)); + drm_clflush_virt_range(&vaddr[gen8_pd_index(idx, 0)], sizeof(*vaddr)); } static void __xehpsdv_ppgtt_insert_entry_lm(struct i915_address_space *vm, diff --git a/drivers/gpu/drm/i915/gt/intel_context.c b/drivers/gpu/drm/i915/gt/intel_context.c index 5d0ec7c49b6a..4070cb5711d8 100644 --- a/drivers/gpu/drm/i915/gt/intel_context.c +++ b/drivers/gpu/drm/i915/gt/intel_context.c @@ -386,7 +386,7 @@ intel_context_init(struct intel_context *ce, struct intel_engine_cs *engine) ce->ring = NULL; ce->ring_size = SZ_4K; - ewma_runtime_init(&ce->runtime.avg); + ewma_runtime_init(&ce->stats.runtime.avg); ce->vm = i915_vm_get(engine->gt->vm); @@ -400,7 +400,7 @@ intel_context_init(struct intel_context *ce, struct intel_engine_cs *engine) INIT_LIST_HEAD(&ce->guc_state.fences); INIT_LIST_HEAD(&ce->guc_state.requests); - ce->guc_id.id = GUC_INVALID_LRC_ID; + ce->guc_id.id = GUC_INVALID_CONTEXT_ID; INIT_LIST_HEAD(&ce->guc_id.link); INIT_LIST_HEAD(&ce->destroyed_link); @@ -576,6 +576,31 @@ void intel_context_bind_parent_child(struct intel_context *parent, child->parallel.parent = parent; } +u64 intel_context_get_total_runtime_ns(const struct intel_context *ce) +{ + u64 total, active; + + total = ce->stats.runtime.total; + if (ce->ops->flags & COPS_RUNTIME_CYCLES) + total *= ce->engine->gt->clock_period_ns; + + active = READ_ONCE(ce->stats.active); + if (active) + active = intel_context_clock() - active; + + return total + active; +} + +u64 intel_context_get_avg_runtime_ns(struct intel_context *ce) +{ + u64 avg = ewma_runtime_read(&ce->stats.runtime.avg); + + if (ce->ops->flags & COPS_RUNTIME_CYCLES) + avg *= ce->engine->gt->clock_period_ns; + + return avg; +} + #if IS_ENABLED(CONFIG_DRM_I915_SELFTEST) #include "selftest_context.c" #endif diff --git a/drivers/gpu/drm/i915/gt/intel_context.h b/drivers/gpu/drm/i915/gt/intel_context.h index d8c74bbf9aae..b7d3214d2cdd 100644 --- a/drivers/gpu/drm/i915/gt/intel_context.h +++ b/drivers/gpu/drm/i915/gt/intel_context.h @@ -351,18 +351,13 @@ intel_context_clear_nopreempt(struct intel_context *ce) clear_bit(CONTEXT_NOPREEMPT, &ce->flags); } -static inline u64 intel_context_get_total_runtime_ns(struct intel_context *ce) -{ - const u32 period = ce->engine->gt->clock_period_ns; - - return READ_ONCE(ce->runtime.total) * period; -} +u64 intel_context_get_total_runtime_ns(const struct intel_context *ce); +u64 intel_context_get_avg_runtime_ns(struct intel_context *ce); -static inline u64 intel_context_get_avg_runtime_ns(struct intel_context *ce) +static inline u64 intel_context_clock(void) { - const u32 period = ce->engine->gt->clock_period_ns; - - return mul_u32_u32(ewma_runtime_read(&ce->runtime.avg), period); + /* As we mix CS cycles with CPU clocks, use the raw monotonic clock. */ + return ktime_get_raw_fast_ns(); } #endif /* __INTEL_CONTEXT_H__ */ diff --git a/drivers/gpu/drm/i915/gt/intel_context_types.h b/drivers/gpu/drm/i915/gt/intel_context_types.h index 30cd81ad8911..09f82545789f 100644 --- a/drivers/gpu/drm/i915/gt/intel_context_types.h +++ b/drivers/gpu/drm/i915/gt/intel_context_types.h @@ -35,6 +35,9 @@ struct intel_context_ops { #define COPS_HAS_INFLIGHT_BIT 0 #define COPS_HAS_INFLIGHT BIT(COPS_HAS_INFLIGHT_BIT) +#define COPS_RUNTIME_CYCLES_BIT 1 +#define COPS_RUNTIME_CYCLES BIT(COPS_RUNTIME_CYCLES_BIT) + int (*alloc)(struct intel_context *ce); void (*ban)(struct intel_context *ce, struct i915_request *rq); @@ -134,14 +137,19 @@ struct intel_context { } lrc; u32 tag; /* cookie passed to HW to track this context on submission */ - /* Time on GPU as tracked by the hw. */ - struct { - struct ewma_runtime avg; - u64 total; - u32 last; - I915_SELFTEST_DECLARE(u32 num_underflow); - I915_SELFTEST_DECLARE(u32 max_underflow); - } runtime; + /** stats: Context GPU engine busyness tracking. */ + struct intel_context_stats { + u64 active; + + /* Time on GPU as tracked by the hw. */ + struct { + struct ewma_runtime avg; + u64 total; + u32 last; + I915_SELFTEST_DECLARE(u32 num_underflow); + I915_SELFTEST_DECLARE(u32 max_underflow); + } runtime; + } stats; unsigned int active_count; /* protected by timeline->mutex */ diff --git a/drivers/gpu/drm/i915/gt/intel_engine.h b/drivers/gpu/drm/i915/gt/intel_engine.h index 1c0ab05c3c40..1431f1e9dbee 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine.h +++ b/drivers/gpu/drm/i915/gt/intel_engine.h @@ -4,6 +4,7 @@ #include <asm/cacheflush.h> #include <drm/drm_util.h> +#include <drm/drm_cache.h> #include <linux/hashtable.h> #include <linux/irq_work.h> @@ -143,15 +144,9 @@ intel_write_status_page(struct intel_engine_cs *engine, int reg, u32 value) * of extra paranoia to try and ensure that the HWS takes the value * we give and that it doesn't end up trapped inside the CPU! */ - if (static_cpu_has(X86_FEATURE_CLFLUSH)) { - mb(); - clflush(&engine->status_page.addr[reg]); - engine->status_page.addr[reg] = value; - clflush(&engine->status_page.addr[reg]); - mb(); - } else { - WRITE_ONCE(engine->status_page.addr[reg], value); - } + drm_clflush_virt_range(&engine->status_page.addr[reg], sizeof(value)); + WRITE_ONCE(engine->status_page.addr[reg], value); + drm_clflush_virt_range(&engine->status_page.addr[reg], sizeof(value)); } /* diff --git a/drivers/gpu/drm/i915/gt/intel_engine_cs.c b/drivers/gpu/drm/i915/gt/intel_engine_cs.c index 7447411a5b26..14c6ddbbfde8 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c +++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c @@ -436,6 +436,11 @@ static int intel_engine_setup(struct intel_gt *gt, enum intel_engine_id id, if (GRAPHICS_VER(i915) == 12 && engine->class == RENDER_CLASS) engine->props.preempt_timeout_ms = 0; + if ((engine->class == COMPUTE_CLASS && !RCS_MASK(engine->gt) && + __ffs(CCS_MASK(engine->gt)) == engine->instance) || + engine->class == RENDER_CLASS) + engine->flags |= I915_ENGINE_FIRST_RENDER_COMPUTE; + /* features common between engines sharing EUs */ if (engine->class == RENDER_CLASS || engine->class == COMPUTE_CLASS) { engine->flags |= I915_ENGINE_HAS_RCS_REG_STATE; @@ -726,12 +731,24 @@ static void populate_logical_ids(struct intel_gt *gt, u8 *logical_ids, static void setup_logical_ids(struct intel_gt *gt, u8 *logical_ids, u8 class) { - int i; - u8 map[MAX_ENGINE_INSTANCE + 1]; + /* + * Logical to physical mapping is needed for proper support + * to split-frame feature. + */ + if (MEDIA_VER(gt->i915) >= 11 && class == VIDEO_DECODE_CLASS) { + const u8 map[] = { 0, 2, 4, 6, 1, 3, 5, 7 }; + + populate_logical_ids(gt, logical_ids, class, + map, ARRAY_SIZE(map)); + } else { + int i; + u8 map[MAX_ENGINE_INSTANCE + 1]; - for (i = 0; i < MAX_ENGINE_INSTANCE + 1; ++i) - map[i] = i; - populate_logical_ids(gt, logical_ids, class, map, ARRAY_SIZE(map)); + for (i = 0; i < MAX_ENGINE_INSTANCE + 1; ++i) + map[i] = i; + populate_logical_ids(gt, logical_ids, class, + map, ARRAY_SIZE(map)); + } } /** @@ -1263,6 +1280,15 @@ static int __intel_engine_stop_cs(struct intel_engine_cs *engine, int err; intel_uncore_write_fw(uncore, mode, _MASKED_BIT_ENABLE(STOP_RING)); + + /* + * Wa_22011802037 : gen12, Prior to doing a reset, ensure CS is + * stopped, set ring stop bit and prefetch disable bit to halt CS + */ + if (GRAPHICS_VER(engine->i915) == 12) + intel_uncore_write_fw(uncore, RING_MODE_GEN7(engine->mmio_base), + _MASKED_BIT_ENABLE(GEN12_GFX_PREFETCH_DISABLE)); + err = __intel_wait_for_register_fw(engine->uncore, mode, MODE_IDLE, MODE_IDLE, fast_timeout_us, @@ -1697,9 +1723,7 @@ static void intel_engine_print_registers(struct intel_engine_cs *engine, drm_printf(m, "\tIPEHR: 0x%08x\n", ENGINE_READ(engine, IPEHR)); } - if (intel_engine_uses_guc(engine)) { - /* nothing to print yet */ - } else if (HAS_EXECLISTS(dev_priv)) { + if (HAS_EXECLISTS(dev_priv) && !intel_engine_uses_guc(engine)) { struct i915_request * const *port, *rq; const u32 *hws = &engine->status_page.addr[I915_HWS_CSB_BUF0_INDEX]; diff --git a/drivers/gpu/drm/i915/gt/intel_engine_regs.h b/drivers/gpu/drm/i915/gt/intel_engine_regs.h index 0bf8b45c9319..594a629cb28f 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine_regs.h +++ b/drivers/gpu/drm/i915/gt/intel_engine_regs.h @@ -181,6 +181,7 @@ #define GFX_SURFACE_FAULT_ENABLE (1 << 12) #define GFX_REPLAY_MODE (1 << 11) #define GFX_PSMI_GRANULARITY (1 << 10) +#define GEN12_GFX_PREFETCH_DISABLE REG_BIT(10) #define GFX_PPGTT_ENABLE (1 << 9) #define GEN8_GFX_PPGTT_48B (1 << 7) #define GFX_FORWARD_VBLANK_MASK (3 << 5) diff --git a/drivers/gpu/drm/i915/gt/intel_engine_types.h b/drivers/gpu/drm/i915/gt/intel_engine_types.h index 19ff8758e34d..298f2cc7a879 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine_types.h +++ b/drivers/gpu/drm/i915/gt/intel_engine_types.h @@ -96,7 +96,9 @@ struct i915_ctx_workarounds { #define I915_MAX_VCS 8 #define I915_MAX_VECS 4 +#define I915_MAX_SFC (I915_MAX_VCS / 2) #define I915_MAX_CCS 4 +#define I915_MAX_RCS 1 /* * Engine IDs definitions. @@ -526,6 +528,8 @@ struct intel_engine_cs { #define I915_ENGINE_WANT_FORCED_PREEMPTION BIT(8) #define I915_ENGINE_HAS_RCS_REG_STATE BIT(9) #define I915_ENGINE_HAS_EU_PRIORITY BIT(10) +#define I915_ENGINE_FIRST_RENDER_COMPUTE BIT(11) +#define I915_ENGINE_USES_WA_HOLD_CCS_SWITCHOUT BIT(12) unsigned int flags; /* @@ -626,6 +630,13 @@ intel_engine_has_relative_mmio(const struct intel_engine_cs * const engine) return engine->flags & I915_ENGINE_HAS_RELATIVE_MMIO; } +/* Wa_14014475959:dg2 */ +static inline bool +intel_engine_uses_wa_hold_ccs_switchout(struct intel_engine_cs *engine) +{ + return engine->flags & I915_ENGINE_USES_WA_HOLD_CCS_SWITCHOUT; +} + #define instdone_has_slice(dev_priv___, sseu___, slice___) \ ((GRAPHICS_VER(dev_priv___) == 7 ? 1 : ((sseu___)->slice_mask)) & BIT(slice___)) @@ -643,7 +654,7 @@ intel_engine_has_relative_mmio(const struct intel_engine_cs * const engine) #define for_each_instdone_gslice_dss_xehp(dev_priv_, sseu_, iter_, gslice_, dss_) \ for ((iter_) = 0, (gslice_) = 0, (dss_) = 0; \ - (iter_) < GEN_MAX_SUBSLICES; \ + (iter_) < GEN_SS_MASK_SIZE; \ (iter_)++, (gslice_) = (iter_) / GEN_DSS_PER_GSLICE, \ (dss_) = (iter_) % GEN_DSS_PER_GSLICE) \ for_each_if(intel_sseu_has_subslice((sseu_), 0, (iter_))) diff --git a/drivers/gpu/drm/i915/gt/intel_engine_user.c b/drivers/gpu/drm/i915/gt/intel_engine_user.c index b8c9b6b89003..0f6cd96b459f 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine_user.c +++ b/drivers/gpu/drm/i915/gt/intel_engine_user.c @@ -193,7 +193,6 @@ static void add_legacy_ring(struct legacy_ring *ring, void intel_engines_driver_register(struct drm_i915_private *i915) { struct legacy_ring ring = {}; - u8 uabi_instances[5] = {}; struct list_head *it, *next; struct rb_node **p, *prev; LIST_HEAD(engines); @@ -214,8 +213,10 @@ void intel_engines_driver_register(struct drm_i915_private *i915) GEM_BUG_ON(engine->class >= ARRAY_SIZE(uabi_classes)); engine->uabi_class = uabi_classes[engine->class]; - GEM_BUG_ON(engine->uabi_class >= ARRAY_SIZE(uabi_instances)); - engine->uabi_instance = uabi_instances[engine->uabi_class]++; + GEM_BUG_ON(engine->uabi_class >= + ARRAY_SIZE(i915->engine_uabi_class_count)); + engine->uabi_instance = + i915->engine_uabi_class_count[engine->uabi_class]++; /* Replace the internal name with the final user facing name */ memcpy(old, engine->name, sizeof(engine->name)); @@ -245,8 +246,8 @@ void intel_engines_driver_register(struct drm_i915_private *i915) int class, inst; int errors = 0; - for (class = 0; class < ARRAY_SIZE(uabi_instances); class++) { - for (inst = 0; inst < uabi_instances[class]; inst++) { + for (class = 0; class < ARRAY_SIZE(i915->engine_uabi_class_count); class++) { + for (inst = 0; inst < i915->engine_uabi_class_count[class]; inst++) { engine = intel_engine_lookup_user(i915, class, inst); if (!engine) { diff --git a/drivers/gpu/drm/i915/gt/intel_execlists_submission.c b/drivers/gpu/drm/i915/gt/intel_execlists_submission.c index 1c602d4ae297..f8749c433b7c 100644 --- a/drivers/gpu/drm/i915/gt/intel_execlists_submission.c +++ b/drivers/gpu/drm/i915/gt/intel_execlists_submission.c @@ -625,8 +625,6 @@ static void __execlists_schedule_out(struct i915_request * const rq, GEM_BUG_ON(test_bit(ccid - 1, &engine->context_tag)); __set_bit(ccid - 1, &engine->context_tag); } - - lrc_update_runtime(ce); intel_engine_context_out(engine); execlists_context_status_change(rq, INTEL_CONTEXT_SCHEDULE_OUT); if (engine->fw_domain && !--engine->fw_active) @@ -1651,12 +1649,6 @@ cancel_port_requests(struct intel_engine_execlists * const execlists, return inactive; } -static void invalidate_csb_entries(const u64 *first, const u64 *last) -{ - clflush((void *)first); - clflush((void *)last); -} - /* * Starting with Gen12, the status has a new format: * @@ -2004,15 +1996,30 @@ process_csb(struct intel_engine_cs *engine, struct i915_request **inactive) * the wash as hardware, working or not, will need to do the * invalidation before. */ - invalidate_csb_entries(&buf[0], &buf[num_entries - 1]); + drm_clflush_virt_range(&buf[0], num_entries * sizeof(buf[0])); /* * We assume that any event reflects a change in context flow * and merits a fresh timeslice. We reinstall the timer after * inspecting the queue to see if we need to resumbit. */ - if (*prev != *execlists->active) /* elide lite-restores */ + if (*prev != *execlists->active) { /* elide lite-restores */ + /* + * Note the inherent discrepancy between the HW runtime, + * recorded as part of the context switch, and the CPU + * adjustment for active contexts. We have to hope that + * the delay in processing the CS event is very small + * and consistent. It works to our advantage to have + * the CPU adjustment _undershoot_ (i.e. start later than) + * the CS timestamp so we never overreport the runtime + * and correct overselves later when updating from HW. + */ + if (*prev) + lrc_runtime_stop((*prev)->context); + if (*execlists->active) + lrc_runtime_start((*execlists->active)->context); new_timeslice(execlists); + } return inactive; } @@ -2236,11 +2243,11 @@ static struct execlists_capture *capture_regs(struct intel_engine_cs *engine) if (!cap->error) goto err_cap; - cap->error->gt = intel_gt_coredump_alloc(engine->gt, gfp); + cap->error->gt = intel_gt_coredump_alloc(engine->gt, gfp, CORE_DUMP_FLAG_NONE); if (!cap->error->gt) goto err_gpu; - cap->error->gt->engine = intel_engine_coredump_alloc(engine, gfp); + cap->error->gt->engine = intel_engine_coredump_alloc(engine, gfp, CORE_DUMP_FLAG_NONE); if (!cap->error->gt->engine) goto err_gt; @@ -2644,7 +2651,7 @@ unwind: } static const struct intel_context_ops execlists_context_ops = { - .flags = COPS_HAS_INFLIGHT, + .flags = COPS_HAS_INFLIGHT | COPS_RUNTIME_CYCLES, .alloc = execlists_context_alloc, @@ -2788,8 +2795,9 @@ static void reset_csb_pointers(struct intel_engine_cs *engine) /* Check that the GPU does indeed update the CSB entries! */ memset(execlists->csb_status, -1, (reset_value + 1) * sizeof(u64)); - invalidate_csb_entries(&execlists->csb_status[0], - &execlists->csb_status[reset_value]); + drm_clflush_virt_range(execlists->csb_status, + execlists->csb_size * + sizeof(execlists->csb_status)); /* Once more for luck and our trusty paranoia */ ENGINE_WRITE(engine, RING_CONTEXT_STATUS_PTR, @@ -2833,7 +2841,7 @@ static void execlists_sanitize(struct intel_engine_cs *engine) sanitize_hwsp(engine); /* And scrub the dirty cachelines for the HWSP */ - clflush_cache_range(engine->status_page.addr, PAGE_SIZE); + drm_clflush_virt_range(engine->status_page.addr, PAGE_SIZE); intel_engine_reset_pinned_contexts(engine); } @@ -2912,7 +2920,7 @@ static int execlists_resume(struct intel_engine_cs *engine) enable_execlists(engine); - if (engine->class == RENDER_CLASS) + if (engine->flags & I915_ENGINE_FIRST_RENDER_COMPUTE) xehp_enable_ccs_engines(engine); return 0; @@ -2958,9 +2966,8 @@ reset_csb(struct intel_engine_cs *engine, struct i915_request **inactive) { struct intel_engine_execlists * const execlists = &engine->execlists; - mb(); /* paranoia: read the CSB pointers from after the reset */ - clflush(execlists->csb_write); - mb(); + drm_clflush_virt_range(execlists->csb_write, + sizeof(execlists->csb_write[0])); inactive = process_csb(engine, inactive); /* drain preemption events */ @@ -3702,7 +3709,7 @@ virtual_get_sibling(struct intel_engine_cs *engine, unsigned int sibling) } static const struct intel_context_ops virtual_context_ops = { - .flags = COPS_HAS_INFLIGHT, + .flags = COPS_HAS_INFLIGHT | COPS_RUNTIME_CYCLES, .alloc = virtual_context_alloc, diff --git a/drivers/gpu/drm/i915/gt/intel_ggtt.c b/drivers/gpu/drm/i915/gt/intel_ggtt.c index e164f30a900d..e6b2eb122ad7 100644 --- a/drivers/gpu/drm/i915/gt/intel_ggtt.c +++ b/drivers/gpu/drm/i915/gt/intel_ggtt.c @@ -3,18 +3,16 @@ * Copyright © 2020 Intel Corporation */ -#include <linux/agp_backend.h> -#include <linux/stop_machine.h> - +#include <linux/types.h> #include <asm/set_memory.h> #include <asm/smp.h> #include <drm/i915_drm.h> -#include <drm/intel-gtt.h> #include "gem/i915_gem_lmem.h" #include "intel_gt.h" +#include "intel_gt_gmch.h" #include "intel_gt_regs.h" #include "i915_drv.h" #include "i915_scatterlist.h" @@ -95,28 +93,6 @@ int i915_ggtt_init_hw(struct drm_i915_private *i915) return 0; } -/* - * Certain Gen5 chipsets require idling the GPU before - * unmapping anything from the GTT when VT-d is enabled. - */ -static bool needs_idle_maps(struct drm_i915_private *i915) -{ - /* - * Query intel_iommu to see if we need the workaround. Presumably that - * was loaded first. - */ - if (!i915_vtd_active(i915)) - return false; - - if (GRAPHICS_VER(i915) == 5 && IS_MOBILE(i915)) - return true; - - if (GRAPHICS_VER(i915) == 12) - return true; /* XXX DMAR fault reason 7 */ - - return false; -} - /** * i915_ggtt_suspend_vm - Suspend the memory mappings for a GGTT or DPT VM * @vm: The VM to suspend the mappings for @@ -127,7 +103,7 @@ static bool needs_idle_maps(struct drm_i915_private *i915) void i915_ggtt_suspend_vm(struct i915_address_space *vm) { struct i915_vma *vma, *vn; - int open; + int save_skip_rewrite; drm_WARN_ON(&vm->i915->drm, !vm->is_ggtt && !vm->is_dpt); @@ -136,8 +112,12 @@ retry: mutex_lock(&vm->mutex); - /* Skip rewriting PTE on VMA unbind. */ - open = atomic_xchg(&vm->open, 0); + /* + * Skip rewriting PTE on VMA unbind. + * FIXME: Use an argument to i915_vma_unbind() instead? + */ + save_skip_rewrite = vm->skip_pte_rewrite; + vm->skip_pte_rewrite = true; list_for_each_entry_safe(vma, vn, &vm->bound_list, vm_link) { struct drm_i915_gem_object *obj = vma->obj; @@ -155,16 +135,14 @@ retry: */ i915_gem_object_get(obj); - atomic_set(&vm->open, open); mutex_unlock(&vm->mutex); i915_gem_object_lock(obj, NULL); - open = i915_vma_unbind(vma); + GEM_WARN_ON(i915_vma_unbind(vma)); i915_gem_object_unlock(obj); - - GEM_WARN_ON(open); - i915_gem_object_put(obj); + + vm->skip_pte_rewrite = save_skip_rewrite; goto retry; } @@ -180,7 +158,7 @@ retry: vm->clear_range(vm, 0, vm->total); - atomic_set(&vm->open, open); + vm->skip_pte_rewrite = save_skip_rewrite; mutex_unlock(&vm->mutex); } @@ -203,7 +181,7 @@ void gen6_ggtt_invalidate(struct i915_ggtt *ggtt) spin_unlock_irq(&uncore->lock); } -static void gen8_ggtt_invalidate(struct i915_ggtt *ggtt) +void gen8_ggtt_invalidate(struct i915_ggtt *ggtt) { struct intel_uncore *uncore = ggtt->vm.gt->uncore; @@ -228,11 +206,6 @@ static void guc_ggtt_invalidate(struct i915_ggtt *ggtt) intel_uncore_write_fw(uncore, GEN8_GTCR, GEN8_GTCR_INVALIDATE); } -static void gmch_ggtt_invalidate(struct i915_ggtt *ggtt) -{ - intel_gtt_chipset_flush(); -} - u64 gen8_ggtt_pte_encode(dma_addr_t addr, enum i915_cache_level level, u32 flags) @@ -245,258 +218,7 @@ u64 gen8_ggtt_pte_encode(dma_addr_t addr, return pte; } -static void gen8_set_pte(void __iomem *addr, gen8_pte_t pte) -{ - writeq(pte, addr); -} - -static void gen8_ggtt_insert_page(struct i915_address_space *vm, - dma_addr_t addr, - u64 offset, - enum i915_cache_level level, - u32 flags) -{ - struct i915_ggtt *ggtt = i915_vm_to_ggtt(vm); - gen8_pte_t __iomem *pte = - (gen8_pte_t __iomem *)ggtt->gsm + offset / I915_GTT_PAGE_SIZE; - - gen8_set_pte(pte, gen8_ggtt_pte_encode(addr, level, flags)); - - ggtt->invalidate(ggtt); -} - -static void gen8_ggtt_insert_entries(struct i915_address_space *vm, - struct i915_vma_resource *vma_res, - enum i915_cache_level level, - u32 flags) -{ - const gen8_pte_t pte_encode = gen8_ggtt_pte_encode(0, level, flags); - struct i915_ggtt *ggtt = i915_vm_to_ggtt(vm); - gen8_pte_t __iomem *gte; - gen8_pte_t __iomem *end; - struct sgt_iter iter; - dma_addr_t addr; - - /* - * Note that we ignore PTE_READ_ONLY here. The caller must be careful - * not to allow the user to override access to a read only page. - */ - - gte = (gen8_pte_t __iomem *)ggtt->gsm; - gte += vma_res->start / I915_GTT_PAGE_SIZE; - end = gte + vma_res->node_size / I915_GTT_PAGE_SIZE; - - for_each_sgt_daddr(addr, iter, vma_res->bi.pages) - gen8_set_pte(gte++, pte_encode | addr); - GEM_BUG_ON(gte > end); - - /* Fill the allocated but "unused" space beyond the end of the buffer */ - while (gte < end) - gen8_set_pte(gte++, vm->scratch[0]->encode); - - /* - * We want to flush the TLBs only after we're certain all the PTE - * updates have finished. - */ - ggtt->invalidate(ggtt); -} - -static void gen6_ggtt_insert_page(struct i915_address_space *vm, - dma_addr_t addr, - u64 offset, - enum i915_cache_level level, - u32 flags) -{ - struct i915_ggtt *ggtt = i915_vm_to_ggtt(vm); - gen6_pte_t __iomem *pte = - (gen6_pte_t __iomem *)ggtt->gsm + offset / I915_GTT_PAGE_SIZE; - - iowrite32(vm->pte_encode(addr, level, flags), pte); - - ggtt->invalidate(ggtt); -} - -/* - * Binds an object into the global gtt with the specified cache level. - * The object will be accessible to the GPU via commands whose operands - * reference offsets within the global GTT as well as accessible by the GPU - * through the GMADR mapped BAR (i915->mm.gtt->gtt). - */ -static void gen6_ggtt_insert_entries(struct i915_address_space *vm, - struct i915_vma_resource *vma_res, - enum i915_cache_level level, - u32 flags) -{ - struct i915_ggtt *ggtt = i915_vm_to_ggtt(vm); - gen6_pte_t __iomem *gte; - gen6_pte_t __iomem *end; - struct sgt_iter iter; - dma_addr_t addr; - - gte = (gen6_pte_t __iomem *)ggtt->gsm; - gte += vma_res->start / I915_GTT_PAGE_SIZE; - end = gte + vma_res->node_size / I915_GTT_PAGE_SIZE; - - for_each_sgt_daddr(addr, iter, vma_res->bi.pages) - iowrite32(vm->pte_encode(addr, level, flags), gte++); - GEM_BUG_ON(gte > end); - - /* Fill the allocated but "unused" space beyond the end of the buffer */ - while (gte < end) - iowrite32(vm->scratch[0]->encode, gte++); - - /* - * We want to flush the TLBs only after we're certain all the PTE - * updates have finished. - */ - ggtt->invalidate(ggtt); -} - -static void nop_clear_range(struct i915_address_space *vm, - u64 start, u64 length) -{ -} - -static void gen8_ggtt_clear_range(struct i915_address_space *vm, - u64 start, u64 length) -{ - struct i915_ggtt *ggtt = i915_vm_to_ggtt(vm); - unsigned int first_entry = start / I915_GTT_PAGE_SIZE; - unsigned int num_entries = length / I915_GTT_PAGE_SIZE; - const gen8_pte_t scratch_pte = vm->scratch[0]->encode; - gen8_pte_t __iomem *gtt_base = - (gen8_pte_t __iomem *)ggtt->gsm + first_entry; - const int max_entries = ggtt_total_entries(ggtt) - first_entry; - int i; - - if (WARN(num_entries > max_entries, - "First entry = %d; Num entries = %d (max=%d)\n", - first_entry, num_entries, max_entries)) - num_entries = max_entries; - - for (i = 0; i < num_entries; i++) - gen8_set_pte(>t_base[i], scratch_pte); -} - -static void bxt_vtd_ggtt_wa(struct i915_address_space *vm) -{ - /* - * Make sure the internal GAM fifo has been cleared of all GTT - * writes before exiting stop_machine(). This guarantees that - * any aperture accesses waiting to start in another process - * cannot back up behind the GTT writes causing a hang. - * The register can be any arbitrary GAM register. - */ - intel_uncore_posting_read_fw(vm->gt->uncore, GFX_FLSH_CNTL_GEN6); -} - -struct insert_page { - struct i915_address_space *vm; - dma_addr_t addr; - u64 offset; - enum i915_cache_level level; -}; - -static int bxt_vtd_ggtt_insert_page__cb(void *_arg) -{ - struct insert_page *arg = _arg; - - gen8_ggtt_insert_page(arg->vm, arg->addr, arg->offset, arg->level, 0); - bxt_vtd_ggtt_wa(arg->vm); - - return 0; -} - -static void bxt_vtd_ggtt_insert_page__BKL(struct i915_address_space *vm, - dma_addr_t addr, - u64 offset, - enum i915_cache_level level, - u32 unused) -{ - struct insert_page arg = { vm, addr, offset, level }; - - stop_machine(bxt_vtd_ggtt_insert_page__cb, &arg, NULL); -} - -struct insert_entries { - struct i915_address_space *vm; - struct i915_vma_resource *vma_res; - enum i915_cache_level level; - u32 flags; -}; - -static int bxt_vtd_ggtt_insert_entries__cb(void *_arg) -{ - struct insert_entries *arg = _arg; - - gen8_ggtt_insert_entries(arg->vm, arg->vma_res, arg->level, arg->flags); - bxt_vtd_ggtt_wa(arg->vm); - - return 0; -} - -static void bxt_vtd_ggtt_insert_entries__BKL(struct i915_address_space *vm, - struct i915_vma_resource *vma_res, - enum i915_cache_level level, - u32 flags) -{ - struct insert_entries arg = { vm, vma_res, level, flags }; - - stop_machine(bxt_vtd_ggtt_insert_entries__cb, &arg, NULL); -} - -static void gen6_ggtt_clear_range(struct i915_address_space *vm, - u64 start, u64 length) -{ - struct i915_ggtt *ggtt = i915_vm_to_ggtt(vm); - unsigned int first_entry = start / I915_GTT_PAGE_SIZE; - unsigned int num_entries = length / I915_GTT_PAGE_SIZE; - gen6_pte_t scratch_pte, __iomem *gtt_base = - (gen6_pte_t __iomem *)ggtt->gsm + first_entry; - const int max_entries = ggtt_total_entries(ggtt) - first_entry; - int i; - - if (WARN(num_entries > max_entries, - "First entry = %d; Num entries = %d (max=%d)\n", - first_entry, num_entries, max_entries)) - num_entries = max_entries; - - scratch_pte = vm->scratch[0]->encode; - for (i = 0; i < num_entries; i++) - iowrite32(scratch_pte, >t_base[i]); -} - -static void i915_ggtt_insert_page(struct i915_address_space *vm, - dma_addr_t addr, - u64 offset, - enum i915_cache_level cache_level, - u32 unused) -{ - unsigned int flags = (cache_level == I915_CACHE_NONE) ? - AGP_USER_MEMORY : AGP_USER_CACHED_MEMORY; - - intel_gtt_insert_page(addr, offset >> PAGE_SHIFT, flags); -} - -static void i915_ggtt_insert_entries(struct i915_address_space *vm, - struct i915_vma_resource *vma_res, - enum i915_cache_level cache_level, - u32 unused) -{ - unsigned int flags = (cache_level == I915_CACHE_NONE) ? - AGP_USER_MEMORY : AGP_USER_CACHED_MEMORY; - - intel_gtt_insert_sg_entries(vma_res->bi.pages, vma_res->start >> PAGE_SHIFT, - flags); -} - -static void i915_ggtt_clear_range(struct i915_address_space *vm, - u64 start, u64 length) -{ - intel_gtt_clear_range(start >> PAGE_SHIFT, length >> PAGE_SHIFT); -} - -static void ggtt_bind_vma(struct i915_address_space *vm, +void intel_ggtt_bind_vma(struct i915_address_space *vm, struct i915_vm_pt_stash *stash, struct i915_vma_resource *vma_res, enum i915_cache_level cache_level, @@ -520,7 +242,7 @@ static void ggtt_bind_vma(struct i915_address_space *vm, vma_res->page_sizes_gtt = I915_GTT_PAGE_SIZE; } -static void ggtt_unbind_vma(struct i915_address_space *vm, +void intel_ggtt_unbind_vma(struct i915_address_space *vm, struct i915_vma_resource *vma_res) { vm->clear_range(vm, vma_res->start, vma_res->vma_size); @@ -723,10 +445,10 @@ static int init_aliasing_ppgtt(struct i915_ggtt *ggtt) ggtt->alias = ppgtt; ggtt->vm.bind_async_flags |= ppgtt->vm.bind_async_flags; - GEM_BUG_ON(ggtt->vm.vma_ops.bind_vma != ggtt_bind_vma); + GEM_BUG_ON(ggtt->vm.vma_ops.bind_vma != intel_ggtt_bind_vma); ggtt->vm.vma_ops.bind_vma = aliasing_gtt_bind_vma; - GEM_BUG_ON(ggtt->vm.vma_ops.unbind_vma != ggtt_unbind_vma); + GEM_BUG_ON(ggtt->vm.vma_ops.unbind_vma != intel_ggtt_unbind_vma); ggtt->vm.vma_ops.unbind_vma = aliasing_gtt_unbind_vma; i915_vm_free_pt_stash(&ppgtt->vm, &stash); @@ -749,8 +471,8 @@ static void fini_aliasing_ppgtt(struct i915_ggtt *ggtt) i915_vm_put(&ppgtt->vm); - ggtt->vm.vma_ops.bind_vma = ggtt_bind_vma; - ggtt->vm.vma_ops.unbind_vma = ggtt_unbind_vma; + ggtt->vm.vma_ops.bind_vma = intel_ggtt_bind_vma; + ggtt->vm.vma_ops.unbind_vma = intel_ggtt_unbind_vma; } int i915_init_ggtt(struct drm_i915_private *i915) @@ -774,13 +496,13 @@ static void ggtt_cleanup_hw(struct i915_ggtt *ggtt) { struct i915_vma *vma, *vn; - atomic_set(&ggtt->vm.open, 0); - flush_workqueue(ggtt->vm.i915->wq); i915_gem_drain_freed_objects(ggtt->vm.i915); mutex_lock(&ggtt->vm.mutex); + ggtt->vm.skip_pte_rewrite = true; + list_for_each_entry_safe(vma, vn, &ggtt->vm.bound_list, vm_link) { struct drm_i915_gem_object *obj = vma->obj; bool trylock; @@ -838,364 +560,12 @@ void i915_ggtt_driver_late_release(struct drm_i915_private *i915) dma_resv_fini(&ggtt->vm._resv); } -static unsigned int gen6_get_total_gtt_size(u16 snb_gmch_ctl) -{ - snb_gmch_ctl >>= SNB_GMCH_GGMS_SHIFT; - snb_gmch_ctl &= SNB_GMCH_GGMS_MASK; - return snb_gmch_ctl << 20; -} - -static unsigned int gen8_get_total_gtt_size(u16 bdw_gmch_ctl) -{ - bdw_gmch_ctl >>= BDW_GMCH_GGMS_SHIFT; - bdw_gmch_ctl &= BDW_GMCH_GGMS_MASK; - if (bdw_gmch_ctl) - bdw_gmch_ctl = 1 << bdw_gmch_ctl; - -#ifdef CONFIG_X86_32 - /* Limit 32b platforms to a 2GB GGTT: 4 << 20 / pte size * I915_GTT_PAGE_SIZE */ - if (bdw_gmch_ctl > 4) - bdw_gmch_ctl = 4; -#endif - - return bdw_gmch_ctl << 20; -} - -static unsigned int chv_get_total_gtt_size(u16 gmch_ctrl) -{ - gmch_ctrl >>= SNB_GMCH_GGMS_SHIFT; - gmch_ctrl &= SNB_GMCH_GGMS_MASK; - - if (gmch_ctrl) - return 1 << (20 + gmch_ctrl); - - return 0; -} - -static unsigned int gen6_gttmmadr_size(struct drm_i915_private *i915) -{ - /* - * GEN6: GTTMMADR size is 4MB and GTTADR starts at 2MB offset - * GEN8: GTTMMADR size is 16MB and GTTADR starts at 8MB offset - */ - GEM_BUG_ON(GRAPHICS_VER(i915) < 6); - return (GRAPHICS_VER(i915) < 8) ? SZ_4M : SZ_16M; -} - -static unsigned int gen6_gttadr_offset(struct drm_i915_private *i915) -{ - return gen6_gttmmadr_size(i915) / 2; -} - -static int ggtt_probe_common(struct i915_ggtt *ggtt, u64 size) -{ - struct drm_i915_private *i915 = ggtt->vm.i915; - struct pci_dev *pdev = to_pci_dev(i915->drm.dev); - phys_addr_t phys_addr; - u32 pte_flags; - int ret; - - GEM_WARN_ON(pci_resource_len(pdev, 0) != gen6_gttmmadr_size(i915)); - phys_addr = pci_resource_start(pdev, 0) + gen6_gttadr_offset(i915); - - /* - * On BXT+/ICL+ writes larger than 64 bit to the GTT pagetable range - * will be dropped. For WC mappings in general we have 64 byte burst - * writes when the WC buffer is flushed, so we can't use it, but have to - * resort to an uncached mapping. The WC issue is easily caught by the - * readback check when writing GTT PTE entries. - */ - if (IS_GEN9_LP(i915) || GRAPHICS_VER(i915) >= 11) - ggtt->gsm = ioremap(phys_addr, size); - else - ggtt->gsm = ioremap_wc(phys_addr, size); - if (!ggtt->gsm) { - drm_err(&i915->drm, "Failed to map the ggtt page table\n"); - return -ENOMEM; - } - - kref_init(&ggtt->vm.resv_ref); - ret = setup_scratch_page(&ggtt->vm); - if (ret) { - drm_err(&i915->drm, "Scratch setup failed\n"); - /* iounmap will also get called at remove, but meh */ - iounmap(ggtt->gsm); - return ret; - } - - pte_flags = 0; - if (i915_gem_object_is_lmem(ggtt->vm.scratch[0])) - pte_flags |= PTE_LM; - - ggtt->vm.scratch[0]->encode = - ggtt->vm.pte_encode(px_dma(ggtt->vm.scratch[0]), - I915_CACHE_NONE, pte_flags); - - return 0; -} - -static void gen6_gmch_remove(struct i915_address_space *vm) -{ - struct i915_ggtt *ggtt = i915_vm_to_ggtt(vm); - - iounmap(ggtt->gsm); - free_scratch(vm); -} - -static struct resource pci_resource(struct pci_dev *pdev, int bar) +struct resource intel_pci_resource(struct pci_dev *pdev, int bar) { return (struct resource)DEFINE_RES_MEM(pci_resource_start(pdev, bar), pci_resource_len(pdev, bar)); } -static int gen8_gmch_probe(struct i915_ggtt *ggtt) -{ - struct drm_i915_private *i915 = ggtt->vm.i915; - struct pci_dev *pdev = to_pci_dev(i915->drm.dev); - unsigned int size; - u16 snb_gmch_ctl; - - /* TODO: We're not aware of mappable constraints on gen8 yet */ - if (!HAS_LMEM(i915)) { - ggtt->gmadr = pci_resource(pdev, 2); - ggtt->mappable_end = resource_size(&ggtt->gmadr); - } - - pci_read_config_word(pdev, SNB_GMCH_CTRL, &snb_gmch_ctl); - if (IS_CHERRYVIEW(i915)) - size = chv_get_total_gtt_size(snb_gmch_ctl); - else - size = gen8_get_total_gtt_size(snb_gmch_ctl); - - ggtt->vm.alloc_pt_dma = alloc_pt_dma; - ggtt->vm.alloc_scratch_dma = alloc_pt_dma; - ggtt->vm.lmem_pt_obj_flags = I915_BO_ALLOC_PM_EARLY; - - ggtt->vm.total = (size / sizeof(gen8_pte_t)) * I915_GTT_PAGE_SIZE; - ggtt->vm.cleanup = gen6_gmch_remove; - ggtt->vm.insert_page = gen8_ggtt_insert_page; - ggtt->vm.clear_range = nop_clear_range; - if (intel_scanout_needs_vtd_wa(i915)) - ggtt->vm.clear_range = gen8_ggtt_clear_range; - - ggtt->vm.insert_entries = gen8_ggtt_insert_entries; - - /* - * Serialize GTT updates with aperture access on BXT if VT-d is on, - * and always on CHV. - */ - if (intel_vm_no_concurrent_access_wa(i915)) { - ggtt->vm.insert_entries = bxt_vtd_ggtt_insert_entries__BKL; - ggtt->vm.insert_page = bxt_vtd_ggtt_insert_page__BKL; - ggtt->vm.bind_async_flags = - I915_VMA_GLOBAL_BIND | I915_VMA_LOCAL_BIND; - } - - ggtt->invalidate = gen8_ggtt_invalidate; - - ggtt->vm.vma_ops.bind_vma = ggtt_bind_vma; - ggtt->vm.vma_ops.unbind_vma = ggtt_unbind_vma; - - ggtt->vm.pte_encode = gen8_ggtt_pte_encode; - - setup_private_pat(ggtt->vm.gt->uncore); - - return ggtt_probe_common(ggtt, size); -} - -static u64 snb_pte_encode(dma_addr_t addr, - enum i915_cache_level level, - u32 flags) -{ - gen6_pte_t pte = GEN6_PTE_ADDR_ENCODE(addr) | GEN6_PTE_VALID; - - switch (level) { - case I915_CACHE_L3_LLC: - case I915_CACHE_LLC: - pte |= GEN6_PTE_CACHE_LLC; - break; - case I915_CACHE_NONE: - pte |= GEN6_PTE_UNCACHED; - break; - default: - MISSING_CASE(level); - } - - return pte; -} - -static u64 ivb_pte_encode(dma_addr_t addr, - enum i915_cache_level level, - u32 flags) -{ - gen6_pte_t pte = GEN6_PTE_ADDR_ENCODE(addr) | GEN6_PTE_VALID; - - switch (level) { - case I915_CACHE_L3_LLC: - pte |= GEN7_PTE_CACHE_L3_LLC; - break; - case I915_CACHE_LLC: - pte |= GEN6_PTE_CACHE_LLC; - break; - case I915_CACHE_NONE: - pte |= GEN6_PTE_UNCACHED; - break; - default: - MISSING_CASE(level); - } - - return pte; -} - -static u64 byt_pte_encode(dma_addr_t addr, - enum i915_cache_level level, - u32 flags) -{ - gen6_pte_t pte = GEN6_PTE_ADDR_ENCODE(addr) | GEN6_PTE_VALID; - - if (!(flags & PTE_READ_ONLY)) - pte |= BYT_PTE_WRITEABLE; - - if (level != I915_CACHE_NONE) - pte |= BYT_PTE_SNOOPED_BY_CPU_CACHES; - - return pte; -} - -static u64 hsw_pte_encode(dma_addr_t addr, - enum i915_cache_level level, - u32 flags) -{ - gen6_pte_t pte = HSW_PTE_ADDR_ENCODE(addr) | GEN6_PTE_VALID; - - if (level != I915_CACHE_NONE) - pte |= HSW_WB_LLC_AGE3; - - return pte; -} - -static u64 iris_pte_encode(dma_addr_t addr, - enum i915_cache_level level, - u32 flags) -{ - gen6_pte_t pte = HSW_PTE_ADDR_ENCODE(addr) | GEN6_PTE_VALID; - - switch (level) { - case I915_CACHE_NONE: - break; - case I915_CACHE_WT: - pte |= HSW_WT_ELLC_LLC_AGE3; - break; - default: - pte |= HSW_WB_ELLC_LLC_AGE3; - break; - } - - return pte; -} - -static int gen6_gmch_probe(struct i915_ggtt *ggtt) -{ - struct drm_i915_private *i915 = ggtt->vm.i915; - struct pci_dev *pdev = to_pci_dev(i915->drm.dev); - unsigned int size; - u16 snb_gmch_ctl; - - ggtt->gmadr = pci_resource(pdev, 2); - ggtt->mappable_end = resource_size(&ggtt->gmadr); - - /* - * 64/512MB is the current min/max we actually know of, but this is - * just a coarse sanity check. - */ - if (ggtt->mappable_end < (64<<20) || ggtt->mappable_end > (512<<20)) { - drm_err(&i915->drm, "Unknown GMADR size (%pa)\n", - &ggtt->mappable_end); - return -ENXIO; - } - - pci_read_config_word(pdev, SNB_GMCH_CTRL, &snb_gmch_ctl); - - size = gen6_get_total_gtt_size(snb_gmch_ctl); - ggtt->vm.total = (size / sizeof(gen6_pte_t)) * I915_GTT_PAGE_SIZE; - - ggtt->vm.alloc_pt_dma = alloc_pt_dma; - ggtt->vm.alloc_scratch_dma = alloc_pt_dma; - - ggtt->vm.clear_range = nop_clear_range; - if (!HAS_FULL_PPGTT(i915) || intel_scanout_needs_vtd_wa(i915)) - ggtt->vm.clear_range = gen6_ggtt_clear_range; - ggtt->vm.insert_page = gen6_ggtt_insert_page; - ggtt->vm.insert_entries = gen6_ggtt_insert_entries; - ggtt->vm.cleanup = gen6_gmch_remove; - - ggtt->invalidate = gen6_ggtt_invalidate; - - if (HAS_EDRAM(i915)) - ggtt->vm.pte_encode = iris_pte_encode; - else if (IS_HASWELL(i915)) - ggtt->vm.pte_encode = hsw_pte_encode; - else if (IS_VALLEYVIEW(i915)) - ggtt->vm.pte_encode = byt_pte_encode; - else if (GRAPHICS_VER(i915) >= 7) - ggtt->vm.pte_encode = ivb_pte_encode; - else - ggtt->vm.pte_encode = snb_pte_encode; - - ggtt->vm.vma_ops.bind_vma = ggtt_bind_vma; - ggtt->vm.vma_ops.unbind_vma = ggtt_unbind_vma; - - return ggtt_probe_common(ggtt, size); -} - -static void i915_gmch_remove(struct i915_address_space *vm) -{ - intel_gmch_remove(); -} - -static int i915_gmch_probe(struct i915_ggtt *ggtt) -{ - struct drm_i915_private *i915 = ggtt->vm.i915; - phys_addr_t gmadr_base; - int ret; - - ret = intel_gmch_probe(i915->bridge_dev, to_pci_dev(i915->drm.dev), NULL); - if (!ret) { - drm_err(&i915->drm, "failed to set up gmch\n"); - return -EIO; - } - - intel_gtt_get(&ggtt->vm.total, &gmadr_base, &ggtt->mappable_end); - - ggtt->gmadr = - (struct resource)DEFINE_RES_MEM(gmadr_base, ggtt->mappable_end); - - ggtt->vm.alloc_pt_dma = alloc_pt_dma; - ggtt->vm.alloc_scratch_dma = alloc_pt_dma; - - if (needs_idle_maps(i915)) { - drm_notice(&i915->drm, - "Flushing DMA requests before IOMMU unmaps; performance may be degraded\n"); - ggtt->do_idle_maps = true; - } - - ggtt->vm.insert_page = i915_ggtt_insert_page; - ggtt->vm.insert_entries = i915_ggtt_insert_entries; - ggtt->vm.clear_range = i915_ggtt_clear_range; - ggtt->vm.cleanup = i915_gmch_remove; - - ggtt->invalidate = gmch_ggtt_invalidate; - - ggtt->vm.vma_ops.bind_vma = ggtt_bind_vma; - ggtt->vm.vma_ops.unbind_vma = ggtt_unbind_vma; - - if (unlikely(ggtt->do_idle_maps)) - drm_notice(&i915->drm, - "Applying Ironlake quirks for intel_iommu\n"); - - return 0; -} - static int ggtt_probe_hw(struct i915_ggtt *ggtt, struct intel_gt *gt) { struct drm_i915_private *i915 = gt->i915; @@ -1207,11 +577,11 @@ static int ggtt_probe_hw(struct i915_ggtt *ggtt, struct intel_gt *gt) dma_resv_init(&ggtt->vm._resv); if (GRAPHICS_VER(i915) <= 5) - ret = i915_gmch_probe(ggtt); + ret = intel_gt_gmch_gen5_probe(ggtt); else if (GRAPHICS_VER(i915) < 8) - ret = gen6_gmch_probe(ggtt); + ret = intel_gt_gmch_gen6_probe(ggtt); else - ret = gen8_gmch_probe(ggtt); + ret = intel_gt_gmch_gen8_probe(ggtt); if (ret) { dma_resv_fini(&ggtt->vm._resv); return ret; @@ -1265,10 +635,7 @@ int i915_ggtt_probe_hw(struct drm_i915_private *i915) int i915_ggtt_enable_hw(struct drm_i915_private *i915) { - if (GRAPHICS_VER(i915) < 6 && !intel_enable_gtt()) - return -EIO; - - return 0; + return intel_gt_gmch_gen5_enable_hw(i915); } void i915_ggtt_enable_guc(struct i915_ggtt *ggtt) @@ -1308,16 +675,12 @@ bool i915_ggtt_resume_vm(struct i915_address_space *vm) { struct i915_vma *vma; bool write_domain_objs = false; - int open; drm_WARN_ON(&vm->i915->drm, !vm->is_ggtt && !vm->is_dpt); /* First fill our portion of the GTT with scratch pages */ vm->clear_range(vm, 0, vm->total); - /* Skip rewriting PTE on VMA unbind. */ - open = atomic_xchg(&vm->open, 0); - /* clflush objects bound into the GGTT and rebind them. */ list_for_each_entry(vma, &vm->bound_list, vm_link) { struct drm_i915_gem_object *obj = vma->obj; @@ -1334,8 +697,6 @@ bool i915_ggtt_resume_vm(struct i915_address_space *vm) } } - atomic_set(&vm->open, open); - return write_domain_objs; } diff --git a/drivers/gpu/drm/i915/gt/intel_gpu_commands.h b/drivers/gpu/drm/i915/gt/intel_gpu_commands.h index d112ffd56418..e52718a87f14 100644 --- a/drivers/gpu/drm/i915/gt/intel_gpu_commands.h +++ b/drivers/gpu/drm/i915/gt/intel_gpu_commands.h @@ -134,6 +134,13 @@ #define MI_MEM_VIRTUAL (1 << 22) /* 945,g33,965 */ #define MI_USE_GGTT (1 << 22) /* g4x+ */ #define MI_STORE_DWORD_INDEX MI_INSTR(0x21, 1) +#define MI_ATOMIC MI_INSTR(0x2f, 1) +#define MI_ATOMIC_INLINE (MI_INSTR(0x2f, 9) | MI_ATOMIC_INLINE_DATA) +#define MI_ATOMIC_GLOBAL_GTT (1 << 22) +#define MI_ATOMIC_INLINE_DATA (1 << 18) +#define MI_ATOMIC_CS_STALL (1 << 17) +#define MI_ATOMIC_MOVE (0x4 << 8) + /* * Official intel docs are somewhat sloppy concerning MI_LOAD_REGISTER_IMM: * - Always issue a MI_NOOP _before_ the MI_LOAD_REGISTER_IMM - otherwise hw @@ -144,6 +151,7 @@ #define MI_LOAD_REGISTER_IMM(x) MI_INSTR(0x22, 2*(x)-1) /* Gen11+. addr = base + (ctx_restore ? offset & GENMASK(12,2) : offset) */ #define MI_LRI_LRM_CS_MMIO REG_BIT(19) +#define MI_LRI_MMIO_REMAP_EN REG_BIT(17) #define MI_LRI_FORCE_POSTED (1<<12) #define MI_LOAD_REGISTER_IMM_MAX_REGS (126) #define MI_STORE_REGISTER_MEM MI_INSTR(0x24, 1) @@ -153,8 +161,10 @@ #define MI_FLUSH_DW_PROTECTED_MEM_EN (1 << 22) #define MI_FLUSH_DW_STORE_INDEX (1<<21) #define MI_INVALIDATE_TLB (1<<18) +#define MI_FLUSH_DW_CCS (1<<16) #define MI_FLUSH_DW_OP_STOREDW (1<<14) #define MI_FLUSH_DW_OP_MASK (3<<14) +#define MI_FLUSH_DW_LLC (1<<9) #define MI_FLUSH_DW_NOTIFY (1<<8) #define MI_INVALIDATE_BSD (1<<7) #define MI_FLUSH_DW_USE_GTT (1<<2) @@ -203,8 +213,27 @@ #define GFX_OP_DRAWRECT_INFO ((0x3<<29)|(0x1d<<24)|(0x80<<16)|(0x3)) #define GFX_OP_DRAWRECT_INFO_I965 ((0x7900<<16)|0x2) +#define XY_CTRL_SURF_INSTR_SIZE 5 +#define MI_FLUSH_DW_SIZE 3 +#define XY_CTRL_SURF_COPY_BLT ((2 << 29) | (0x48 << 22) | 3) +#define SRC_ACCESS_TYPE_SHIFT 21 +#define DST_ACCESS_TYPE_SHIFT 20 +#define CCS_SIZE_MASK 0x3FF +#define CCS_SIZE_SHIFT 8 +#define XY_CTRL_SURF_MOCS_MASK GENMASK(31, 25) +#define NUM_CCS_BYTES_PER_BLOCK 256 +#define NUM_BYTES_PER_CCS_BYTE 256 +#define NUM_CCS_BLKS_PER_XFER 1024 +#define INDIRECT_ACCESS 0 +#define DIRECT_ACCESS 1 + #define COLOR_BLT_CMD (2 << 29 | 0x40 << 22 | (5 - 2)) #define XY_COLOR_BLT_CMD (2 << 29 | 0x50 << 22) +#define XY_FAST_COLOR_BLT_CMD (2 << 29 | 0x44 << 22) +#define XY_FAST_COLOR_BLT_DEPTH_32 (2 << 19) +#define XY_FAST_COLOR_BLT_DW 16 +#define XY_FAST_COLOR_BLT_MOCS_MASK GENMASK(27, 21) +#define XY_FAST_COLOR_BLT_MEM_TYPE_SHIFT 31 #define SRC_COPY_BLT_CMD (2 << 29 | 0x43 << 22) #define GEN9_XY_FAST_COPY_BLT_CMD (2 << 29 | 0x42 << 22) #define XY_SRC_COPY_BLT_CMD (2 << 29 | 0x53 << 22) diff --git a/drivers/gpu/drm/i915/gt/intel_gsc.c b/drivers/gpu/drm/i915/gt/intel_gsc.c new file mode 100644 index 000000000000..0e494028b81d --- /dev/null +++ b/drivers/gpu/drm/i915/gt/intel_gsc.c @@ -0,0 +1,224 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright(c) 2019-2022, Intel Corporation. All rights reserved. + */ + +#include <linux/irq.h> +#include <linux/mei_aux.h> +#include "i915_drv.h" +#include "i915_reg.h" +#include "gt/intel_gsc.h" +#include "gt/intel_gt.h" + +#define GSC_BAR_LENGTH 0x00000FFC + +static void gsc_irq_mask(struct irq_data *d) +{ + /* generic irq handling */ +} + +static void gsc_irq_unmask(struct irq_data *d) +{ + /* generic irq handling */ +} + +static struct irq_chip gsc_irq_chip = { + .name = "gsc_irq_chip", + .irq_mask = gsc_irq_mask, + .irq_unmask = gsc_irq_unmask, +}; + +static int gsc_irq_init(int irq) +{ + irq_set_chip_and_handler_name(irq, &gsc_irq_chip, + handle_simple_irq, "gsc_irq_handler"); + + return irq_set_chip_data(irq, NULL); +} + +struct gsc_def { + const char *name; + unsigned long bar; + size_t bar_size; +}; + +/* gsc resources and definitions (HECI1 and HECI2) */ +static const struct gsc_def gsc_def_dg1[] = { + { + /* HECI1 not yet implemented. */ + }, + { + .name = "mei-gscfi", + .bar = DG1_GSC_HECI2_BASE, + .bar_size = GSC_BAR_LENGTH, + } +}; + +static const struct gsc_def gsc_def_dg2[] = { + { + .name = "mei-gsc", + .bar = DG2_GSC_HECI1_BASE, + .bar_size = GSC_BAR_LENGTH, + }, + { + .name = "mei-gscfi", + .bar = DG2_GSC_HECI2_BASE, + .bar_size = GSC_BAR_LENGTH, + } +}; + +static void gsc_release_dev(struct device *dev) +{ + struct auxiliary_device *aux_dev = to_auxiliary_dev(dev); + struct mei_aux_device *adev = auxiliary_dev_to_mei_aux_dev(aux_dev); + + kfree(adev); +} + +static void gsc_destroy_one(struct intel_gsc_intf *intf) +{ + if (intf->adev) { + auxiliary_device_delete(&intf->adev->aux_dev); + auxiliary_device_uninit(&intf->adev->aux_dev); + intf->adev = NULL; + } + if (intf->irq >= 0) + irq_free_desc(intf->irq); + intf->irq = -1; +} + +static void gsc_init_one(struct drm_i915_private *i915, + struct intel_gsc_intf *intf, + unsigned int intf_id) +{ + struct pci_dev *pdev = to_pci_dev(i915->drm.dev); + struct mei_aux_device *adev; + struct auxiliary_device *aux_dev; + const struct gsc_def *def; + int ret; + + intf->irq = -1; + intf->id = intf_id; + + if (intf_id == 0 && !HAS_HECI_PXP(i915)) + return; + + if (IS_DG1(i915)) { + def = &gsc_def_dg1[intf_id]; + } else if (IS_DG2(i915)) { + def = &gsc_def_dg2[intf_id]; + } else { + drm_warn_once(&i915->drm, "Unknown platform\n"); + return; + } + + if (!def->name) { + drm_warn_once(&i915->drm, "HECI%d is not implemented!\n", intf_id + 1); + return; + } + + intf->irq = irq_alloc_desc(0); + if (intf->irq < 0) { + drm_err(&i915->drm, "gsc irq error %d\n", intf->irq); + return; + } + + ret = gsc_irq_init(intf->irq); + if (ret < 0) { + drm_err(&i915->drm, "gsc irq init failed %d\n", ret); + goto fail; + } + + adev = kzalloc(sizeof(*adev), GFP_KERNEL); + if (!adev) + goto fail; + + adev->irq = intf->irq; + adev->bar.parent = &pdev->resource[0]; + adev->bar.start = def->bar + pdev->resource[0].start; + adev->bar.end = adev->bar.start + def->bar_size - 1; + adev->bar.flags = IORESOURCE_MEM; + adev->bar.desc = IORES_DESC_NONE; + + aux_dev = &adev->aux_dev; + aux_dev->name = def->name; + aux_dev->id = (pci_domain_nr(pdev->bus) << 16) | + PCI_DEVID(pdev->bus->number, pdev->devfn); + aux_dev->dev.parent = &pdev->dev; + aux_dev->dev.release = gsc_release_dev; + + ret = auxiliary_device_init(aux_dev); + if (ret < 0) { + drm_err(&i915->drm, "gsc aux init failed %d\n", ret); + kfree(adev); + goto fail; + } + + ret = auxiliary_device_add(aux_dev); + if (ret < 0) { + drm_err(&i915->drm, "gsc aux add failed %d\n", ret); + /* adev will be freed with the put_device() and .release sequence */ + auxiliary_device_uninit(aux_dev); + goto fail; + } + intf->adev = adev; + + return; +fail: + gsc_destroy_one(intf); +} + +static void gsc_irq_handler(struct intel_gt *gt, unsigned int intf_id) +{ + int ret; + + if (intf_id >= INTEL_GSC_NUM_INTERFACES) { + drm_warn_once(>->i915->drm, "GSC irq: intf_id %d is out of range", intf_id); + return; + } + + if (!HAS_HECI_GSC(gt->i915)) { + drm_warn_once(>->i915->drm, "GSC irq: not supported"); + return; + } + + if (gt->gsc.intf[intf_id].irq < 0) { + drm_err_ratelimited(>->i915->drm, "GSC irq: irq not set"); + return; + } + + ret = generic_handle_irq(gt->gsc.intf[intf_id].irq); + if (ret) + drm_err_ratelimited(>->i915->drm, "error handling GSC irq: %d\n", ret); +} + +void intel_gsc_irq_handler(struct intel_gt *gt, u32 iir) +{ + if (iir & GSC_IRQ_INTF(0)) + gsc_irq_handler(gt, 0); + if (iir & GSC_IRQ_INTF(1)) + gsc_irq_handler(gt, 1); +} + +void intel_gsc_init(struct intel_gsc *gsc, struct drm_i915_private *i915) +{ + unsigned int i; + + if (!HAS_HECI_GSC(i915)) + return; + + for (i = 0; i < INTEL_GSC_NUM_INTERFACES; i++) + gsc_init_one(i915, &gsc->intf[i], i); +} + +void intel_gsc_fini(struct intel_gsc *gsc) +{ + struct intel_gt *gt = gsc_to_gt(gsc); + unsigned int i; + + if (!HAS_HECI_GSC(gt->i915)) + return; + + for (i = 0; i < INTEL_GSC_NUM_INTERFACES; i++) + gsc_destroy_one(&gsc->intf[i]); +} diff --git a/drivers/gpu/drm/i915/gt/intel_gsc.h b/drivers/gpu/drm/i915/gt/intel_gsc.h new file mode 100644 index 000000000000..68582f912b21 --- /dev/null +++ b/drivers/gpu/drm/i915/gt/intel_gsc.h @@ -0,0 +1,37 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright(c) 2019-2022, Intel Corporation. All rights reserved. + */ +#ifndef __INTEL_GSC_DEV_H__ +#define __INTEL_GSC_DEV_H__ + +#include <linux/types.h> + +struct drm_i915_private; +struct intel_gt; +struct mei_aux_device; + +#define INTEL_GSC_NUM_INTERFACES 2 +/* + * The HECI1 bit corresponds to bit15 and HECI2 to bit14. + * The reason for this is to allow growth for more interfaces in the future. + */ +#define GSC_IRQ_INTF(_x) BIT(15 - (_x)) + +/** + * struct intel_gsc - graphics security controller + * @intf : gsc interface + */ +struct intel_gsc { + struct intel_gsc_intf { + struct mei_aux_device *adev; + int irq; + unsigned int id; + } intf[INTEL_GSC_NUM_INTERFACES]; +}; + +void intel_gsc_init(struct intel_gsc *gsc, struct drm_i915_private *dev_priv); +void intel_gsc_fini(struct intel_gsc *gsc); +void intel_gsc_irq_handler(struct intel_gt *gt, u32 iir); + +#endif /* __INTEL_GSC_DEV_H__ */ diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c index 8a2483ccbfb9..92394f13b42f 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt.c +++ b/drivers/gpu/drm/i915/gt/intel_gt.c @@ -4,7 +4,6 @@ */ #include <drm/drm_managed.h> -#include <drm/intel-gtt.h> #include "gem/i915_gem_internal.h" #include "gem/i915_gem_lmem.h" @@ -17,6 +16,7 @@ #include "intel_gt_buffer_pool.h" #include "intel_gt_clock_utils.h" #include "intel_gt_debugfs.h" +#include "intel_gt_gmch.h" #include "intel_gt_pm.h" #include "intel_gt_regs.h" #include "intel_gt_requests.h" @@ -26,10 +26,11 @@ #include "intel_rc6.h" #include "intel_renderstate.h" #include "intel_rps.h" +#include "intel_gt_sysfs.h" #include "intel_uncore.h" #include "shmem_utils.h" -void __intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915) +static void __intel_gt_init_early(struct intel_gt *gt) { spin_lock_init(>->irq_lock); @@ -51,17 +52,23 @@ void __intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915) intel_rps_init_early(>->rps); } -void intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915) +/* Preliminary initialization of Tile 0 */ +void intel_root_gt_init_early(struct drm_i915_private *i915) { + struct intel_gt *gt = to_gt(i915); + gt->i915 = i915; gt->uncore = &i915->uncore; + + __intel_gt_init_early(gt); } -int intel_gt_probe_lmem(struct intel_gt *gt) +static int intel_gt_probe_lmem(struct intel_gt *gt) { struct drm_i915_private *i915 = gt->i915; + unsigned int instance = gt->info.id; + int id = INTEL_REGION_LMEM_0 + instance; struct intel_memory_region *mem; - int id; int err; mem = intel_gt_setup_lmem(gt); @@ -76,9 +83,8 @@ int intel_gt_probe_lmem(struct intel_gt *gt) return err; } - id = INTEL_REGION_LMEM; - mem->id = id; + mem->instance = instance; intel_memory_region_set_name(mem, "local%u", mem->instance); @@ -96,6 +102,12 @@ int intel_gt_assign_ggtt(struct intel_gt *gt) return gt->ggtt ? 0 : -ENOMEM; } +static const char * const intel_steering_types[] = { + "L3BANK", + "MSLICE", + "LNCF", +}; + static const struct intel_mmio_range icl_l3bank_steering_table[] = { { 0x00B100, 0x00B3FF }, {}, @@ -439,14 +451,17 @@ void intel_gt_chipset_flush(struct intel_gt *gt) { wmb(); if (GRAPHICS_VER(gt->i915) < 6) - intel_gtt_chipset_flush(); + intel_gt_gmch_gen5_chipset_flush(gt); } void intel_gt_driver_register(struct intel_gt *gt) { + intel_gsc_init(>->gsc, gt->i915); + intel_rps_driver_register(>->rps); intel_gt_debugfs_register(gt); + intel_gt_sysfs_register(gt); } static int intel_gt_init_scratch(struct intel_gt *gt, unsigned int size) @@ -712,6 +727,11 @@ int intel_gt_init(struct intel_gt *gt) if (err) goto err_uc_init; + err = intel_gt_init_hwconfig(gt); + if (err) + drm_err(>->i915->drm, "Failed to retrieve hwconfig table: %pe\n", + ERR_PTR(err)); + err = __engines_record_defaults(gt); if (err) goto err_gt; @@ -766,6 +786,7 @@ void intel_gt_driver_unregister(struct intel_gt *gt) intel_wakeref_t wakeref; intel_rps_driver_unregister(>->rps); + intel_gsc_fini(>->gsc); intel_pxp_fini(>->pxp); @@ -793,18 +814,24 @@ void intel_gt_driver_release(struct intel_gt *gt) intel_gt_pm_fini(gt); intel_gt_fini_scratch(gt); intel_gt_fini_buffer_pool(gt); + intel_gt_fini_hwconfig(gt); } -void intel_gt_driver_late_release(struct intel_gt *gt) +void intel_gt_driver_late_release_all(struct drm_i915_private *i915) { + struct intel_gt *gt; + unsigned int id; + /* We need to wait for inflight RCU frees to release their grip */ rcu_barrier(); - intel_uc_driver_late_release(>->uc); - intel_gt_fini_requests(gt); - intel_gt_fini_reset(gt); - intel_gt_fini_timelines(gt); - intel_engines_free(gt); + for_each_gt(gt, i915, id) { + intel_uc_driver_late_release(>->uc); + intel_gt_fini_requests(gt); + intel_gt_fini_reset(gt); + intel_gt_fini_timelines(gt); + intel_engines_free(gt); + } } /** @@ -913,6 +940,35 @@ u32 intel_gt_read_register_fw(struct intel_gt *gt, i915_reg_t reg) return intel_uncore_read_fw(gt->uncore, reg); } +/** + * intel_gt_get_valid_steering_for_reg - get a valid steering for a register + * @gt: GT structure + * @reg: register for which the steering is required + * @sliceid: return variable for slice steering + * @subsliceid: return variable for subslice steering + * + * This function returns a slice/subslice pair that is guaranteed to work for + * read steering of the given register. Note that a value will be returned even + * if the register is not replicated and therefore does not actually require + * steering. + */ +void intel_gt_get_valid_steering_for_reg(struct intel_gt *gt, i915_reg_t reg, + u8 *sliceid, u8 *subsliceid) +{ + int type; + + for (type = 0; type < NUM_STEERING_TYPES; type++) { + if (intel_gt_reg_needs_read_steering(gt, reg, type)) { + intel_gt_get_valid_steering(gt, type, sliceid, + subsliceid); + return; + } + } + + *sliceid = gt->default_steering.groupid; + *subsliceid = gt->default_steering.instanceid; +} + u32 intel_gt_read_register(struct intel_gt *gt, i915_reg_t reg) { int type; @@ -932,6 +988,145 @@ u32 intel_gt_read_register(struct intel_gt *gt, i915_reg_t reg) return intel_uncore_read(gt->uncore, reg); } +static void report_steering_type(struct drm_printer *p, + struct intel_gt *gt, + enum intel_steering_type type, + bool dump_table) +{ + const struct intel_mmio_range *entry; + u8 slice, subslice; + + BUILD_BUG_ON(ARRAY_SIZE(intel_steering_types) != NUM_STEERING_TYPES); + + if (!gt->steering_table[type]) { + drm_printf(p, "%s steering: uses default steering\n", + intel_steering_types[type]); + return; + } + + intel_gt_get_valid_steering(gt, type, &slice, &subslice); + drm_printf(p, "%s steering: sliceid=0x%x, subsliceid=0x%x\n", + intel_steering_types[type], slice, subslice); + + if (!dump_table) + return; + + for (entry = gt->steering_table[type]; entry->end; entry++) + drm_printf(p, "\t0x%06x - 0x%06x\n", entry->start, entry->end); +} + +void intel_gt_report_steering(struct drm_printer *p, struct intel_gt *gt, + bool dump_table) +{ + drm_printf(p, "Default steering: sliceid=0x%x, subsliceid=0x%x\n", + gt->default_steering.groupid, + gt->default_steering.instanceid); + + if (HAS_MSLICES(gt->i915)) { + report_steering_type(p, gt, MSLICE, dump_table); + report_steering_type(p, gt, LNCF, dump_table); + } +} + +static int intel_gt_tile_setup(struct intel_gt *gt, phys_addr_t phys_addr) +{ + int ret; + + if (!gt_is_root(gt)) { + struct intel_uncore_mmio_debug *mmio_debug; + struct intel_uncore *uncore; + + uncore = kzalloc(sizeof(*uncore), GFP_KERNEL); + if (!uncore) + return -ENOMEM; + + mmio_debug = kzalloc(sizeof(*mmio_debug), GFP_KERNEL); + if (!mmio_debug) { + kfree(uncore); + return -ENOMEM; + } + + gt->uncore = uncore; + gt->uncore->debug = mmio_debug; + + __intel_gt_init_early(gt); + } + + intel_uncore_init_early(gt->uncore, gt); + + ret = intel_uncore_setup_mmio(gt->uncore, phys_addr); + if (ret) + return ret; + + gt->phys_addr = phys_addr; + + return 0; +} + +static void +intel_gt_tile_cleanup(struct intel_gt *gt) +{ + intel_uncore_cleanup_mmio(gt->uncore); + + if (!gt_is_root(gt)) { + kfree(gt->uncore->debug); + kfree(gt->uncore); + kfree(gt); + } +} + +int intel_gt_probe_all(struct drm_i915_private *i915) +{ + struct pci_dev *pdev = to_pci_dev(i915->drm.dev); + struct intel_gt *gt = &i915->gt0; + phys_addr_t phys_addr; + unsigned int mmio_bar; + int ret; + + mmio_bar = GRAPHICS_VER(i915) == 2 ? 1 : 0; + phys_addr = pci_resource_start(pdev, mmio_bar); + + /* + * We always have at least one primary GT on any device + * and it has been already initialized early during probe + * in i915_driver_probe() + */ + ret = intel_gt_tile_setup(gt, phys_addr); + if (ret) + return ret; + + i915->gt[0] = gt; + + /* TODO: add more tiles */ + return 0; +} + +int intel_gt_tiles_init(struct drm_i915_private *i915) +{ + struct intel_gt *gt; + unsigned int id; + int ret; + + for_each_gt(gt, i915, id) { + ret = intel_gt_probe_lmem(gt); + if (ret) + return ret; + } + + return 0; +} + +void intel_gt_release_all(struct drm_i915_private *i915) +{ + struct intel_gt *gt; + unsigned int id; + + for_each_gt(gt, i915, id) { + intel_gt_tile_cleanup(gt); + i915->gt[id] = NULL; + } +} + void intel_gt_info_print(const struct intel_gt_info *info, struct drm_printer *p) { diff --git a/drivers/gpu/drm/i915/gt/intel_gt.h b/drivers/gpu/drm/i915/gt/intel_gt.h index 0f571c8ee22b..44c6cb63ccbc 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt.h +++ b/drivers/gpu/drm/i915/gt/intel_gt.h @@ -13,12 +13,24 @@ struct drm_i915_private; struct drm_printer; +struct insert_entries { + struct i915_address_space *vm; + struct i915_vma_resource *vma_res; + enum i915_cache_level level; + u32 flags; +}; + #define GT_TRACE(gt, fmt, ...) do { \ const struct intel_gt *gt__ __maybe_unused = (gt); \ GEM_TRACE("%s " fmt, dev_name(gt__->i915->drm.dev), \ ##__VA_ARGS__); \ } while (0) +static inline bool gt_is_root(struct intel_gt *gt) +{ + return !gt->info.id; +} + static inline struct intel_gt *uc_to_gt(struct intel_uc *uc) { return container_of(uc, struct intel_gt, uc); @@ -34,10 +46,13 @@ static inline struct intel_gt *huc_to_gt(struct intel_huc *huc) return container_of(huc, struct intel_gt, uc.huc); } -void intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915); -void __intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915); +static inline struct intel_gt *gsc_to_gt(struct intel_gsc *gsc) +{ + return container_of(gsc, struct intel_gt, gsc); +} + +void intel_root_gt_init_early(struct drm_i915_private *i915); int intel_gt_assign_ggtt(struct intel_gt *gt); -int intel_gt_probe_lmem(struct intel_gt *gt); int intel_gt_init_mmio(struct intel_gt *gt); int __must_check intel_gt_init_hw(struct intel_gt *gt); int intel_gt_init(struct intel_gt *gt); @@ -47,7 +62,7 @@ void intel_gt_driver_unregister(struct intel_gt *gt); void intel_gt_driver_remove(struct intel_gt *gt); void intel_gt_driver_release(struct intel_gt *gt); -void intel_gt_driver_late_release(struct intel_gt *gt); +void intel_gt_driver_late_release_all(struct drm_i915_private *i915); int intel_gt_wait_for_idle(struct intel_gt *gt, long timeout); @@ -84,9 +99,25 @@ static inline bool intel_gt_needs_read_steering(struct intel_gt *gt, return gt->steering_table[type]; } +void intel_gt_get_valid_steering_for_reg(struct intel_gt *gt, i915_reg_t reg, + u8 *sliceid, u8 *subsliceid); + u32 intel_gt_read_register_fw(struct intel_gt *gt, i915_reg_t reg); u32 intel_gt_read_register(struct intel_gt *gt, i915_reg_t reg); +void intel_gt_report_steering(struct drm_printer *p, struct intel_gt *gt, + bool dump_table); + +int intel_gt_probe_all(struct drm_i915_private *i915); +int intel_gt_tiles_init(struct drm_i915_private *i915); +void intel_gt_release_all(struct drm_i915_private *i915); + +#define for_each_gt(gt__, i915__, id__) \ + for ((id__) = 0; \ + (id__) < I915_MAX_GT; \ + (id__)++) \ + for_each_if(((gt__) = (i915__)->gt[(id__)])) + void intel_gt_info_print(const struct intel_gt_info *info, struct drm_printer *p); @@ -94,4 +125,6 @@ void intel_gt_watchdog_work(struct work_struct *work); void intel_gt_invalidate_tlbs(struct intel_gt *gt); +struct resource intel_pci_resource(struct pci_dev *pdev, int bar); + #endif /* __INTEL_GT_H__ */ diff --git a/drivers/gpu/drm/i915/gt/intel_gt_clock_utils.c b/drivers/gpu/drm/i915/gt/intel_gt_clock_utils.c index 0db822c3b7e5..d5d1b04dbcad 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_clock_utils.c +++ b/drivers/gpu/drm/i915/gt/intel_gt_clock_utils.c @@ -161,6 +161,10 @@ void intel_gt_init_clock_frequency(struct intel_gt *gt) if (gt->clock_frequency) gt->clock_period_ns = intel_gt_clock_interval_to_ns(gt, 1); + /* Icelake appears to use another fixed frequency for CTX_TIMESTAMP */ + if (GRAPHICS_VER(gt->i915) == 11) + gt->clock_period_ns = NSEC_PER_SEC / 13750000; + GT_TRACE(gt, "Using clock frequency: %dkHz, period: %dns, wrap: %lldms\n", gt->clock_frequency / 1000, diff --git a/drivers/gpu/drm/i915/gt/intel_gt_debugfs.c b/drivers/gpu/drm/i915/gt/intel_gt_debugfs.c index f103664b71d4..d886fdc2c694 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_debugfs.c +++ b/drivers/gpu/drm/i915/gt/intel_gt_debugfs.c @@ -6,6 +6,7 @@ #include <linux/debugfs.h> #include "i915_drv.h" +#include "intel_gt.h" #include "intel_gt_debugfs.h" #include "intel_gt_engines_debugfs.h" #include "intel_gt_pm_debugfs.h" @@ -29,7 +30,7 @@ int intel_gt_debugfs_reset_show(struct intel_gt *gt, u64 *val) } } -int intel_gt_debugfs_reset_store(struct intel_gt *gt, u64 val) +void intel_gt_debugfs_reset_store(struct intel_gt *gt, u64 val) { /* Flush any previous reset before applying for a new one */ wait_event(gt->reset.queue, @@ -37,7 +38,6 @@ int intel_gt_debugfs_reset_store(struct intel_gt *gt, u64 val) intel_gt_handle_error(gt, val, I915_ERROR_CAPTURE, "Manually reset engine mask to %llx", val); - return 0; } /* @@ -51,16 +51,30 @@ static int __intel_gt_debugfs_reset_show(void *data, u64 *val) static int __intel_gt_debugfs_reset_store(void *data, u64 val) { - return intel_gt_debugfs_reset_store(data, val); + intel_gt_debugfs_reset_store(data, val); + + return 0; } DEFINE_SIMPLE_ATTRIBUTE(reset_fops, __intel_gt_debugfs_reset_show, __intel_gt_debugfs_reset_store, "%llu\n"); +static int steering_show(struct seq_file *m, void *data) +{ + struct drm_printer p = drm_seq_file_printer(m); + struct intel_gt *gt = m->private; + + intel_gt_report_steering(&p, gt, true); + + return 0; +} +DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE(steering); + static void gt_debugfs_register(struct intel_gt *gt, struct dentry *root) { static const struct intel_gt_debugfs_file files[] = { { "reset", &reset_fops, NULL }, + { "steering", &steering_fops }, }; intel_gt_debugfs_register_files(root, files, ARRAY_SIZE(files), gt); diff --git a/drivers/gpu/drm/i915/gt/intel_gt_debugfs.h b/drivers/gpu/drm/i915/gt/intel_gt_debugfs.h index 17e79b735cfe..e4110eebf093 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_debugfs.h +++ b/drivers/gpu/drm/i915/gt/intel_gt_debugfs.h @@ -48,6 +48,6 @@ void intel_gt_debugfs_register_files(struct dentry *root, /* functions that need to be accessed by the upper level non-gt interfaces */ int intel_gt_debugfs_reset_show(struct intel_gt *gt, u64 *val); -int intel_gt_debugfs_reset_store(struct intel_gt *gt, u64 val); +void intel_gt_debugfs_reset_store(struct intel_gt *gt, u64 val); #endif /* INTEL_GT_DEBUGFS_H */ diff --git a/drivers/gpu/drm/i915/gt/intel_gt_gmch.c b/drivers/gpu/drm/i915/gt/intel_gt_gmch.c new file mode 100644 index 000000000000..18e488672d1b --- /dev/null +++ b/drivers/gpu/drm/i915/gt/intel_gt_gmch.c @@ -0,0 +1,654 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright © 2022 Intel Corporation + */ + +#include <drm/intel-gtt.h> +#include <drm/i915_drm.h> + +#include <linux/agp_backend.h> +#include <linux/stop_machine.h> + +#include "i915_drv.h" +#include "intel_gt_gmch.h" +#include "intel_gt_regs.h" +#include "intel_gt.h" +#include "i915_utils.h" + +#include "gen8_ppgtt.h" + +struct insert_page { + struct i915_address_space *vm; + dma_addr_t addr; + u64 offset; + enum i915_cache_level level; +}; + +static void gen8_set_pte(void __iomem *addr, gen8_pte_t pte) +{ + writeq(pte, addr); +} + +static void nop_clear_range(struct i915_address_space *vm, + u64 start, u64 length) +{ +} + +static u64 snb_pte_encode(dma_addr_t addr, + enum i915_cache_level level, + u32 flags) +{ + gen6_pte_t pte = GEN6_PTE_ADDR_ENCODE(addr) | GEN6_PTE_VALID; + + switch (level) { + case I915_CACHE_L3_LLC: + case I915_CACHE_LLC: + pte |= GEN6_PTE_CACHE_LLC; + break; + case I915_CACHE_NONE: + pte |= GEN6_PTE_UNCACHED; + break; + default: + MISSING_CASE(level); + } + + return pte; +} + +static u64 ivb_pte_encode(dma_addr_t addr, + enum i915_cache_level level, + u32 flags) +{ + gen6_pte_t pte = GEN6_PTE_ADDR_ENCODE(addr) | GEN6_PTE_VALID; + + switch (level) { + case I915_CACHE_L3_LLC: + pte |= GEN7_PTE_CACHE_L3_LLC; + break; + case I915_CACHE_LLC: + pte |= GEN6_PTE_CACHE_LLC; + break; + case I915_CACHE_NONE: + pte |= GEN6_PTE_UNCACHED; + break; + default: + MISSING_CASE(level); + } + + return pte; +} + +static u64 byt_pte_encode(dma_addr_t addr, + enum i915_cache_level level, + u32 flags) +{ + gen6_pte_t pte = GEN6_PTE_ADDR_ENCODE(addr) | GEN6_PTE_VALID; + + if (!(flags & PTE_READ_ONLY)) + pte |= BYT_PTE_WRITEABLE; + + if (level != I915_CACHE_NONE) + pte |= BYT_PTE_SNOOPED_BY_CPU_CACHES; + + return pte; +} + +static u64 hsw_pte_encode(dma_addr_t addr, + enum i915_cache_level level, + u32 flags) +{ + gen6_pte_t pte = HSW_PTE_ADDR_ENCODE(addr) | GEN6_PTE_VALID; + + if (level != I915_CACHE_NONE) + pte |= HSW_WB_LLC_AGE3; + + return pte; +} + +static u64 iris_pte_encode(dma_addr_t addr, + enum i915_cache_level level, + u32 flags) +{ + gen6_pte_t pte = HSW_PTE_ADDR_ENCODE(addr) | GEN6_PTE_VALID; + + switch (level) { + case I915_CACHE_NONE: + break; + case I915_CACHE_WT: + pte |= HSW_WT_ELLC_LLC_AGE3; + break; + default: + pte |= HSW_WB_ELLC_LLC_AGE3; + break; + } + + return pte; +} + +static void gen5_ggtt_insert_page(struct i915_address_space *vm, + dma_addr_t addr, + u64 offset, + enum i915_cache_level cache_level, + u32 unused) +{ + unsigned int flags = (cache_level == I915_CACHE_NONE) ? + AGP_USER_MEMORY : AGP_USER_CACHED_MEMORY; + + intel_gtt_insert_page(addr, offset >> PAGE_SHIFT, flags); +} + +static void gen6_ggtt_insert_page(struct i915_address_space *vm, + dma_addr_t addr, + u64 offset, + enum i915_cache_level level, + u32 flags) +{ + struct i915_ggtt *ggtt = i915_vm_to_ggtt(vm); + gen6_pte_t __iomem *pte = + (gen6_pte_t __iomem *)ggtt->gsm + offset / I915_GTT_PAGE_SIZE; + + iowrite32(vm->pte_encode(addr, level, flags), pte); + + ggtt->invalidate(ggtt); +} + +static void gen8_ggtt_insert_page(struct i915_address_space *vm, + dma_addr_t addr, + u64 offset, + enum i915_cache_level level, + u32 flags) +{ + struct i915_ggtt *ggtt = i915_vm_to_ggtt(vm); + gen8_pte_t __iomem *pte = + (gen8_pte_t __iomem *)ggtt->gsm + offset / I915_GTT_PAGE_SIZE; + + gen8_set_pte(pte, gen8_ggtt_pte_encode(addr, level, flags)); + + ggtt->invalidate(ggtt); +} + +static void gen5_ggtt_insert_entries(struct i915_address_space *vm, + struct i915_vma_resource *vma_res, + enum i915_cache_level cache_level, + u32 unused) +{ + unsigned int flags = (cache_level == I915_CACHE_NONE) ? + AGP_USER_MEMORY : AGP_USER_CACHED_MEMORY; + + intel_gtt_insert_sg_entries(vma_res->bi.pages, vma_res->start >> PAGE_SHIFT, + flags); +} + +/* + * Binds an object into the global gtt with the specified cache level. + * The object will be accessible to the GPU via commands whose operands + * reference offsets within the global GTT as well as accessible by the GPU + * through the GMADR mapped BAR (i915->mm.gtt->gtt). + */ +static void gen6_ggtt_insert_entries(struct i915_address_space *vm, + struct i915_vma_resource *vma_res, + enum i915_cache_level level, + u32 flags) +{ + struct i915_ggtt *ggtt = i915_vm_to_ggtt(vm); + gen6_pte_t __iomem *gte; + gen6_pte_t __iomem *end; + struct sgt_iter iter; + dma_addr_t addr; + + gte = (gen6_pte_t __iomem *)ggtt->gsm; + gte += vma_res->start / I915_GTT_PAGE_SIZE; + end = gte + vma_res->node_size / I915_GTT_PAGE_SIZE; + + for_each_sgt_daddr(addr, iter, vma_res->bi.pages) + iowrite32(vm->pte_encode(addr, level, flags), gte++); + GEM_BUG_ON(gte > end); + + /* Fill the allocated but "unused" space beyond the end of the buffer */ + while (gte < end) + iowrite32(vm->scratch[0]->encode, gte++); + + /* + * We want to flush the TLBs only after we're certain all the PTE + * updates have finished. + */ + ggtt->invalidate(ggtt); +} + +static void gen8_ggtt_insert_entries(struct i915_address_space *vm, + struct i915_vma_resource *vma_res, + enum i915_cache_level level, + u32 flags) +{ + const gen8_pte_t pte_encode = gen8_ggtt_pte_encode(0, level, flags); + struct i915_ggtt *ggtt = i915_vm_to_ggtt(vm); + gen8_pte_t __iomem *gte; + gen8_pte_t __iomem *end; + struct sgt_iter iter; + dma_addr_t addr; + + /* + * Note that we ignore PTE_READ_ONLY here. The caller must be careful + * not to allow the user to override access to a read only page. + */ + + gte = (gen8_pte_t __iomem *)ggtt->gsm; + gte += vma_res->start / I915_GTT_PAGE_SIZE; + end = gte + vma_res->node_size / I915_GTT_PAGE_SIZE; + + for_each_sgt_daddr(addr, iter, vma_res->bi.pages) + gen8_set_pte(gte++, pte_encode | addr); + GEM_BUG_ON(gte > end); + + /* Fill the allocated but "unused" space beyond the end of the buffer */ + while (gte < end) + gen8_set_pte(gte++, vm->scratch[0]->encode); + + /* + * We want to flush the TLBs only after we're certain all the PTE + * updates have finished. + */ + ggtt->invalidate(ggtt); +} + +static void bxt_vtd_ggtt_wa(struct i915_address_space *vm) +{ + /* + * Make sure the internal GAM fifo has been cleared of all GTT + * writes before exiting stop_machine(). This guarantees that + * any aperture accesses waiting to start in another process + * cannot back up behind the GTT writes causing a hang. + * The register can be any arbitrary GAM register. + */ + intel_uncore_posting_read_fw(vm->gt->uncore, GFX_FLSH_CNTL_GEN6); +} + +static int bxt_vtd_ggtt_insert_page__cb(void *_arg) +{ + struct insert_page *arg = _arg; + + gen8_ggtt_insert_page(arg->vm, arg->addr, arg->offset, arg->level, 0); + bxt_vtd_ggtt_wa(arg->vm); + + return 0; +} + +static void bxt_vtd_ggtt_insert_page__BKL(struct i915_address_space *vm, + dma_addr_t addr, + u64 offset, + enum i915_cache_level level, + u32 unused) +{ + struct insert_page arg = { vm, addr, offset, level }; + + stop_machine(bxt_vtd_ggtt_insert_page__cb, &arg, NULL); +} + +static int bxt_vtd_ggtt_insert_entries__cb(void *_arg) +{ + struct insert_entries *arg = _arg; + + gen8_ggtt_insert_entries(arg->vm, arg->vma_res, arg->level, arg->flags); + bxt_vtd_ggtt_wa(arg->vm); + + return 0; +} + +static void bxt_vtd_ggtt_insert_entries__BKL(struct i915_address_space *vm, + struct i915_vma_resource *vma_res, + enum i915_cache_level level, + u32 flags) +{ + struct insert_entries arg = { vm, vma_res, level, flags }; + + stop_machine(bxt_vtd_ggtt_insert_entries__cb, &arg, NULL); +} + +void intel_gt_gmch_gen5_chipset_flush(struct intel_gt *gt) +{ + intel_gtt_chipset_flush(); +} + +static void gmch_ggtt_invalidate(struct i915_ggtt *ggtt) +{ + intel_gtt_chipset_flush(); +} + +static void gen5_ggtt_clear_range(struct i915_address_space *vm, + u64 start, u64 length) +{ + intel_gtt_clear_range(start >> PAGE_SHIFT, length >> PAGE_SHIFT); +} + +static void gen6_ggtt_clear_range(struct i915_address_space *vm, + u64 start, u64 length) +{ + struct i915_ggtt *ggtt = i915_vm_to_ggtt(vm); + unsigned int first_entry = start / I915_GTT_PAGE_SIZE; + unsigned int num_entries = length / I915_GTT_PAGE_SIZE; + gen6_pte_t scratch_pte, __iomem *gtt_base = + (gen6_pte_t __iomem *)ggtt->gsm + first_entry; + const int max_entries = ggtt_total_entries(ggtt) - first_entry; + int i; + + if (WARN(num_entries > max_entries, + "First entry = %d; Num entries = %d (max=%d)\n", + first_entry, num_entries, max_entries)) + num_entries = max_entries; + + scratch_pte = vm->scratch[0]->encode; + for (i = 0; i < num_entries; i++) + iowrite32(scratch_pte, >t_base[i]); +} + +static void gen8_ggtt_clear_range(struct i915_address_space *vm, + u64 start, u64 length) +{ + struct i915_ggtt *ggtt = i915_vm_to_ggtt(vm); + unsigned int first_entry = start / I915_GTT_PAGE_SIZE; + unsigned int num_entries = length / I915_GTT_PAGE_SIZE; + const gen8_pte_t scratch_pte = vm->scratch[0]->encode; + gen8_pte_t __iomem *gtt_base = + (gen8_pte_t __iomem *)ggtt->gsm + first_entry; + const int max_entries = ggtt_total_entries(ggtt) - first_entry; + int i; + + if (WARN(num_entries > max_entries, + "First entry = %d; Num entries = %d (max=%d)\n", + first_entry, num_entries, max_entries)) + num_entries = max_entries; + + for (i = 0; i < num_entries; i++) + gen8_set_pte(>t_base[i], scratch_pte); +} + +static void gen5_gmch_remove(struct i915_address_space *vm) +{ + intel_gmch_remove(); +} + +static void gen6_gmch_remove(struct i915_address_space *vm) +{ + struct i915_ggtt *ggtt = i915_vm_to_ggtt(vm); + + iounmap(ggtt->gsm); + free_scratch(vm); +} + +/* + * Certain Gen5 chipsets require idling the GPU before + * unmapping anything from the GTT when VT-d is enabled. + */ +static bool needs_idle_maps(struct drm_i915_private *i915) +{ + /* + * Query intel_iommu to see if we need the workaround. Presumably that + * was loaded first. + */ + if (!i915_vtd_active(i915)) + return false; + + if (GRAPHICS_VER(i915) == 5 && IS_MOBILE(i915)) + return true; + + if (GRAPHICS_VER(i915) == 12) + return true; /* XXX DMAR fault reason 7 */ + + return false; +} + +static unsigned int gen6_gttmmadr_size(struct drm_i915_private *i915) +{ + /* + * GEN6: GTTMMADR size is 4MB and GTTADR starts at 2MB offset + * GEN8: GTTMMADR size is 16MB and GTTADR starts at 8MB offset + */ + GEM_BUG_ON(GRAPHICS_VER(i915) < 6); + return (GRAPHICS_VER(i915) < 8) ? SZ_4M : SZ_16M; +} + +static unsigned int gen6_get_total_gtt_size(u16 snb_gmch_ctl) +{ + snb_gmch_ctl >>= SNB_GMCH_GGMS_SHIFT; + snb_gmch_ctl &= SNB_GMCH_GGMS_MASK; + return snb_gmch_ctl << 20; +} + +static unsigned int gen8_get_total_gtt_size(u16 bdw_gmch_ctl) +{ + bdw_gmch_ctl >>= BDW_GMCH_GGMS_SHIFT; + bdw_gmch_ctl &= BDW_GMCH_GGMS_MASK; + if (bdw_gmch_ctl) + bdw_gmch_ctl = 1 << bdw_gmch_ctl; + +#ifdef CONFIG_X86_32 + /* Limit 32b platforms to a 2GB GGTT: 4 << 20 / pte size * I915_GTT_PAGE_SIZE */ + if (bdw_gmch_ctl > 4) + bdw_gmch_ctl = 4; +#endif + + return bdw_gmch_ctl << 20; +} + +static unsigned int gen6_gttadr_offset(struct drm_i915_private *i915) +{ + return gen6_gttmmadr_size(i915) / 2; +} + +static int ggtt_probe_common(struct i915_ggtt *ggtt, u64 size) +{ + struct drm_i915_private *i915 = ggtt->vm.i915; + struct pci_dev *pdev = to_pci_dev(i915->drm.dev); + phys_addr_t phys_addr; + u32 pte_flags; + int ret; + + GEM_WARN_ON(pci_resource_len(pdev, 0) != gen6_gttmmadr_size(i915)); + phys_addr = pci_resource_start(pdev, 0) + gen6_gttadr_offset(i915); + + /* + * On BXT+/ICL+ writes larger than 64 bit to the GTT pagetable range + * will be dropped. For WC mappings in general we have 64 byte burst + * writes when the WC buffer is flushed, so we can't use it, but have to + * resort to an uncached mapping. The WC issue is easily caught by the + * readback check when writing GTT PTE entries. + */ + if (IS_GEN9_LP(i915) || GRAPHICS_VER(i915) >= 11) + ggtt->gsm = ioremap(phys_addr, size); + else + ggtt->gsm = ioremap_wc(phys_addr, size); + if (!ggtt->gsm) { + drm_err(&i915->drm, "Failed to map the ggtt page table\n"); + return -ENOMEM; + } + + kref_init(&ggtt->vm.resv_ref); + ret = setup_scratch_page(&ggtt->vm); + if (ret) { + drm_err(&i915->drm, "Scratch setup failed\n"); + /* iounmap will also get called at remove, but meh */ + iounmap(ggtt->gsm); + return ret; + } + + pte_flags = 0; + if (i915_gem_object_is_lmem(ggtt->vm.scratch[0])) + pte_flags |= PTE_LM; + + ggtt->vm.scratch[0]->encode = + ggtt->vm.pte_encode(px_dma(ggtt->vm.scratch[0]), + I915_CACHE_NONE, pte_flags); + + return 0; +} + +int intel_gt_gmch_gen5_probe(struct i915_ggtt *ggtt) +{ + struct drm_i915_private *i915 = ggtt->vm.i915; + phys_addr_t gmadr_base; + int ret; + + ret = intel_gmch_probe(i915->bridge_dev, to_pci_dev(i915->drm.dev), NULL); + if (!ret) { + drm_err(&i915->drm, "failed to set up gmch\n"); + return -EIO; + } + + intel_gtt_get(&ggtt->vm.total, &gmadr_base, &ggtt->mappable_end); + + ggtt->gmadr = + (struct resource)DEFINE_RES_MEM(gmadr_base, ggtt->mappable_end); + + ggtt->vm.alloc_pt_dma = alloc_pt_dma; + ggtt->vm.alloc_scratch_dma = alloc_pt_dma; + + if (needs_idle_maps(i915)) { + drm_notice(&i915->drm, + "Flushing DMA requests before IOMMU unmaps; performance may be degraded\n"); + ggtt->do_idle_maps = true; + } + + ggtt->vm.insert_page = gen5_ggtt_insert_page; + ggtt->vm.insert_entries = gen5_ggtt_insert_entries; + ggtt->vm.clear_range = gen5_ggtt_clear_range; + ggtt->vm.cleanup = gen5_gmch_remove; + + ggtt->invalidate = gmch_ggtt_invalidate; + + ggtt->vm.vma_ops.bind_vma = intel_ggtt_bind_vma; + ggtt->vm.vma_ops.unbind_vma = intel_ggtt_unbind_vma; + + if (unlikely(ggtt->do_idle_maps)) + drm_notice(&i915->drm, + "Applying Ironlake quirks for intel_iommu\n"); + + return 0; +} + +int intel_gt_gmch_gen6_probe(struct i915_ggtt *ggtt) +{ + struct drm_i915_private *i915 = ggtt->vm.i915; + struct pci_dev *pdev = to_pci_dev(i915->drm.dev); + unsigned int size; + u16 snb_gmch_ctl; + + ggtt->gmadr = intel_pci_resource(pdev, 2); + ggtt->mappable_end = resource_size(&ggtt->gmadr); + + /* + * 64/512MB is the current min/max we actually know of, but this is + * just a coarse sanity check. + */ + if (ggtt->mappable_end < (64<<20) || ggtt->mappable_end > (512<<20)) { + drm_err(&i915->drm, "Unknown GMADR size (%pa)\n", + &ggtt->mappable_end); + return -ENXIO; + } + + pci_read_config_word(pdev, SNB_GMCH_CTRL, &snb_gmch_ctl); + + size = gen6_get_total_gtt_size(snb_gmch_ctl); + ggtt->vm.total = (size / sizeof(gen6_pte_t)) * I915_GTT_PAGE_SIZE; + + ggtt->vm.alloc_pt_dma = alloc_pt_dma; + ggtt->vm.alloc_scratch_dma = alloc_pt_dma; + + ggtt->vm.clear_range = nop_clear_range; + if (!HAS_FULL_PPGTT(i915) || intel_scanout_needs_vtd_wa(i915)) + ggtt->vm.clear_range = gen6_ggtt_clear_range; + ggtt->vm.insert_page = gen6_ggtt_insert_page; + ggtt->vm.insert_entries = gen6_ggtt_insert_entries; + ggtt->vm.cleanup = gen6_gmch_remove; + + ggtt->invalidate = gen6_ggtt_invalidate; + + if (HAS_EDRAM(i915)) + ggtt->vm.pte_encode = iris_pte_encode; + else if (IS_HASWELL(i915)) + ggtt->vm.pte_encode = hsw_pte_encode; + else if (IS_VALLEYVIEW(i915)) + ggtt->vm.pte_encode = byt_pte_encode; + else if (GRAPHICS_VER(i915) >= 7) + ggtt->vm.pte_encode = ivb_pte_encode; + else + ggtt->vm.pte_encode = snb_pte_encode; + + ggtt->vm.vma_ops.bind_vma = intel_ggtt_bind_vma; + ggtt->vm.vma_ops.unbind_vma = intel_ggtt_unbind_vma; + + return ggtt_probe_common(ggtt, size); +} + +static unsigned int chv_get_total_gtt_size(u16 gmch_ctrl) +{ + gmch_ctrl >>= SNB_GMCH_GGMS_SHIFT; + gmch_ctrl &= SNB_GMCH_GGMS_MASK; + + if (gmch_ctrl) + return 1 << (20 + gmch_ctrl); + + return 0; +} + +int intel_gt_gmch_gen8_probe(struct i915_ggtt *ggtt) +{ + struct drm_i915_private *i915 = ggtt->vm.i915; + struct pci_dev *pdev = to_pci_dev(i915->drm.dev); + unsigned int size; + u16 snb_gmch_ctl; + + /* TODO: We're not aware of mappable constraints on gen8 yet */ + if (!HAS_LMEM(i915)) { + ggtt->gmadr = intel_pci_resource(pdev, 2); + ggtt->mappable_end = resource_size(&ggtt->gmadr); + } + + pci_read_config_word(pdev, SNB_GMCH_CTRL, &snb_gmch_ctl); + if (IS_CHERRYVIEW(i915)) + size = chv_get_total_gtt_size(snb_gmch_ctl); + else + size = gen8_get_total_gtt_size(snb_gmch_ctl); + + ggtt->vm.alloc_pt_dma = alloc_pt_dma; + ggtt->vm.alloc_scratch_dma = alloc_pt_dma; + ggtt->vm.lmem_pt_obj_flags = I915_BO_ALLOC_PM_EARLY; + + ggtt->vm.total = (size / sizeof(gen8_pte_t)) * I915_GTT_PAGE_SIZE; + ggtt->vm.cleanup = gen6_gmch_remove; + ggtt->vm.insert_page = gen8_ggtt_insert_page; + ggtt->vm.clear_range = nop_clear_range; + if (intel_scanout_needs_vtd_wa(i915)) + ggtt->vm.clear_range = gen8_ggtt_clear_range; + + ggtt->vm.insert_entries = gen8_ggtt_insert_entries; + + /* + * Serialize GTT updates with aperture access on BXT if VT-d is on, + * and always on CHV. + */ + if (intel_vm_no_concurrent_access_wa(i915)) { + ggtt->vm.insert_entries = bxt_vtd_ggtt_insert_entries__BKL; + ggtt->vm.insert_page = bxt_vtd_ggtt_insert_page__BKL; + ggtt->vm.bind_async_flags = + I915_VMA_GLOBAL_BIND | I915_VMA_LOCAL_BIND; + } + + ggtt->invalidate = gen8_ggtt_invalidate; + + ggtt->vm.vma_ops.bind_vma = intel_ggtt_bind_vma; + ggtt->vm.vma_ops.unbind_vma = intel_ggtt_unbind_vma; + + ggtt->vm.pte_encode = gen8_ggtt_pte_encode; + + setup_private_pat(ggtt->vm.gt->uncore); + + return ggtt_probe_common(ggtt, size); +} + +int intel_gt_gmch_gen5_enable_hw(struct drm_i915_private *i915) +{ + if (GRAPHICS_VER(i915) < 6 && !intel_enable_gtt()) + return -EIO; + + return 0; +} diff --git a/drivers/gpu/drm/i915/gt/intel_gt_gmch.h b/drivers/gpu/drm/i915/gt/intel_gt_gmch.h new file mode 100644 index 000000000000..75ed55c1f30a --- /dev/null +++ b/drivers/gpu/drm/i915/gt/intel_gt_gmch.h @@ -0,0 +1,46 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright © 2022 Intel Corporation + */ + +#ifndef __INTEL_GT_GMCH_H__ +#define __INTEL_GT_GMCH_H__ + +#include "intel_gtt.h" + +/* For x86 platforms */ +#if IS_ENABLED(CONFIG_X86) +void intel_gt_gmch_gen5_chipset_flush(struct intel_gt *gt); +int intel_gt_gmch_gen6_probe(struct i915_ggtt *ggtt); +int intel_gt_gmch_gen8_probe(struct i915_ggtt *ggtt); +int intel_gt_gmch_gen5_probe(struct i915_ggtt *ggtt); +int intel_gt_gmch_gen5_enable_hw(struct drm_i915_private *i915); + +/* Stubs for non-x86 platforms */ +#else +static inline void intel_gt_gmch_gen5_chipset_flush(struct intel_gt *gt) +{ +} +static inline int intel_gt_gmch_gen5_probe(struct i915_ggtt *ggtt) +{ + /* No HW should be probed for this case yet, return fail */ + return -ENODEV; +} +static inline int intel_gt_gmch_gen6_probe(struct i915_ggtt *ggtt) +{ + /* No HW should be probed for this case yet, return fail */ + return -ENODEV; +} +static inline int intel_gt_gmch_gen8_probe(struct i915_ggtt *ggtt) +{ + /* No HW should be probed for this case yet, return fail */ + return -ENODEV; +} +static inline int intel_gt_gmch_gen5_enable_hw(struct drm_i915_private *i915) +{ + /* No HW should be enabled for this case yet, return fail */ + return -ENODEV; +} +#endif + +#endif /* __INTEL_GT_GMCH_H__ */ diff --git a/drivers/gpu/drm/i915/gt/intel_gt_irq.c b/drivers/gpu/drm/i915/gt/intel_gt_irq.c index e443ac4c8059..88b4becfcb17 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_irq.c +++ b/drivers/gpu/drm/i915/gt/intel_gt_irq.c @@ -68,6 +68,9 @@ gen11_other_irq_handler(struct intel_gt *gt, const u8 instance, if (instance == OTHER_KCR_INSTANCE) return intel_pxp_irq_handler(>->pxp, iir); + if (instance == OTHER_GSC_INSTANCE) + return intel_gsc_irq_handler(gt, iir); + WARN_ONCE(1, "unhandled other interrupt instance=0x%x, iir=0x%x\n", instance, iir); } @@ -184,6 +187,8 @@ void gen11_gt_irq_reset(struct intel_gt *gt) intel_uncore_write(uncore, GEN11_VCS_VECS_INTR_ENABLE, 0); if (CCS_MASK(gt)) intel_uncore_write(uncore, GEN12_CCS_RSVD_INTR_ENABLE, 0); + if (HAS_HECI_GSC(gt->i915)) + intel_uncore_write(uncore, GEN11_GUNIT_CSME_INTR_ENABLE, 0); /* Restore masks irqs on RCS, BCS, VCS and VECS engines. */ intel_uncore_write(uncore, GEN11_RCS0_RSVD_INTR_MASK, ~0); @@ -201,6 +206,8 @@ void gen11_gt_irq_reset(struct intel_gt *gt) intel_uncore_write(uncore, GEN12_CCS0_CCS1_INTR_MASK, ~0); if (HAS_ENGINE(gt, CCS2) || HAS_ENGINE(gt, CCS3)) intel_uncore_write(uncore, GEN12_CCS2_CCS3_INTR_MASK, ~0); + if (HAS_HECI_GSC(gt->i915)) + intel_uncore_write(uncore, GEN11_GUNIT_CSME_INTR_MASK, ~0); intel_uncore_write(uncore, GEN11_GPM_WGBOXPERF_INTR_ENABLE, 0); intel_uncore_write(uncore, GEN11_GPM_WGBOXPERF_INTR_MASK, ~0); @@ -215,6 +222,7 @@ void gen11_gt_irq_postinstall(struct intel_gt *gt) { struct intel_uncore *uncore = gt->uncore; u32 irqs = GT_RENDER_USER_INTERRUPT; + const u32 gsc_mask = GSC_IRQ_INTF(0) | GSC_IRQ_INTF(1); u32 dmask; u32 smask; @@ -233,6 +241,9 @@ void gen11_gt_irq_postinstall(struct intel_gt *gt) intel_uncore_write(uncore, GEN11_VCS_VECS_INTR_ENABLE, dmask); if (CCS_MASK(gt)) intel_uncore_write(uncore, GEN12_CCS_RSVD_INTR_ENABLE, smask); + if (HAS_HECI_GSC(gt->i915)) + intel_uncore_write(uncore, GEN11_GUNIT_CSME_INTR_ENABLE, + gsc_mask); /* Unmask irqs on RCS, BCS, VCS and VECS engines. */ intel_uncore_write(uncore, GEN11_RCS0_RSVD_INTR_MASK, ~smask); @@ -250,6 +261,8 @@ void gen11_gt_irq_postinstall(struct intel_gt *gt) intel_uncore_write(uncore, GEN12_CCS0_CCS1_INTR_MASK, ~dmask); if (HAS_ENGINE(gt, CCS2) || HAS_ENGINE(gt, CCS3)) intel_uncore_write(uncore, GEN12_CCS2_CCS3_INTR_MASK, ~dmask); + if (HAS_HECI_GSC(gt->i915)) + intel_uncore_write(uncore, GEN11_GUNIT_CSME_INTR_MASK, ~gsc_mask); /* * RPS interrupts will get enabled/disabled on demand when RPS itself diff --git a/drivers/gpu/drm/i915/gt/intel_gt_pm.c b/drivers/gpu/drm/i915/gt/intel_gt_pm.c index e4ecc17889d3..f553e2173bda 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_pm.c +++ b/drivers/gpu/drm/i915/gt/intel_gt_pm.c @@ -129,7 +129,14 @@ static const struct intel_wakeref_ops wf_ops = { void intel_gt_pm_init_early(struct intel_gt *gt) { - intel_wakeref_init(>->wakeref, gt->uncore->rpm, &wf_ops); + /* + * We access the runtime_pm structure via gt->i915 here rather than + * gt->uncore as we do elsewhere in the file because gt->uncore is not + * yet initialized for all tiles at this point in the driver startup. + * runtime_pm is per-device rather than per-tile, so this is still the + * correct structure. + */ + intel_wakeref_init(>->wakeref, >->i915->runtime_pm, &wf_ops); seqcount_mutex_init(>->stats.lock, >->wakeref.mutex); } @@ -175,15 +182,16 @@ static void gt_sanitize(struct intel_gt *gt, bool force) if (intel_gt_is_wedged(gt)) intel_gt_unset_wedged(gt); - for_each_engine(engine, gt, id) + /* For GuC mode, ensure submission is disabled before stopping ring */ + intel_uc_reset_prepare(>->uc); + + for_each_engine(engine, gt, id) { if (engine->reset.prepare) engine->reset.prepare(engine); - intel_uc_reset_prepare(>->uc); - - for_each_engine(engine, gt, id) if (engine->sanitize) engine->sanitize(engine); + } if (reset_engines(gt) || force) { for_each_engine(engine, gt, id) diff --git a/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c b/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c index 437e96bb3b93..0c6b9eb724ae 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c +++ b/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c @@ -24,38 +24,38 @@ #include "intel_uncore.h" #include "vlv_sideband.h" -int intel_gt_pm_debugfs_forcewake_user_open(struct intel_gt *gt) +void intel_gt_pm_debugfs_forcewake_user_open(struct intel_gt *gt) { atomic_inc(>->user_wakeref); intel_gt_pm_get(gt); if (GRAPHICS_VER(gt->i915) >= 6) intel_uncore_forcewake_user_get(gt->uncore); - - return 0; } -int intel_gt_pm_debugfs_forcewake_user_release(struct intel_gt *gt) +void intel_gt_pm_debugfs_forcewake_user_release(struct intel_gt *gt) { if (GRAPHICS_VER(gt->i915) >= 6) intel_uncore_forcewake_user_put(gt->uncore); intel_gt_pm_put(gt); atomic_dec(>->user_wakeref); - - return 0; } static int forcewake_user_open(struct inode *inode, struct file *file) { struct intel_gt *gt = inode->i_private; - return intel_gt_pm_debugfs_forcewake_user_open(gt); + intel_gt_pm_debugfs_forcewake_user_open(gt); + + return 0; } static int forcewake_user_release(struct inode *inode, struct file *file) { struct intel_gt *gt = inode->i_private; - return intel_gt_pm_debugfs_forcewake_user_release(gt); + intel_gt_pm_debugfs_forcewake_user_release(gt); + + return 0; } static const struct file_operations forcewake_user_fops = { @@ -342,17 +342,16 @@ void intel_gt_pm_frequency_dump(struct intel_gt *gt, struct drm_printer *p) } else if (GRAPHICS_VER(i915) >= 6) { u32 rp_state_limits; u32 gt_perf_status; - u32 rp_state_cap; + struct intel_rps_freq_caps caps; u32 rpmodectl, rpinclimit, rpdeclimit; u32 rpstat, cagf, reqf; u32 rpcurupei, rpcurup, rpprevup; u32 rpcurdownei, rpcurdown, rpprevdown; u32 rpupei, rpupt, rpdownei, rpdownt; u32 pm_ier, pm_imr, pm_isr, pm_iir, pm_mask; - int max_freq; rp_state_limits = intel_uncore_read(uncore, GEN6_RP_STATE_LIMITS); - rp_state_cap = intel_rps_read_state_cap(rps); + gen6_rps_get_freq_caps(rps, &caps); if (IS_GEN9_LP(i915)) gt_perf_status = intel_uncore_read(uncore, BXT_GT_PERF_STATUS); else @@ -474,25 +473,12 @@ void intel_gt_pm_frequency_dump(struct intel_gt *gt, struct drm_printer *p) drm_printf(p, "RP DOWN THRESHOLD: %d (%lldns)\n", rpdownt, intel_gt_pm_interval_to_ns(gt, rpdownt)); - max_freq = (IS_GEN9_LP(i915) ? rp_state_cap >> 0 : - rp_state_cap >> 16) & 0xff; - max_freq *= (IS_GEN9_BC(i915) || - GRAPHICS_VER(i915) >= 11 ? GEN9_FREQ_SCALER : 1); drm_printf(p, "Lowest (RPN) frequency: %dMHz\n", - intel_gpu_freq(rps, max_freq)); - - max_freq = (rp_state_cap & 0xff00) >> 8; - max_freq *= (IS_GEN9_BC(i915) || - GRAPHICS_VER(i915) >= 11 ? GEN9_FREQ_SCALER : 1); + intel_gpu_freq(rps, caps.min_freq)); drm_printf(p, "Nominal (RP1) frequency: %dMHz\n", - intel_gpu_freq(rps, max_freq)); - - max_freq = (IS_GEN9_LP(i915) ? rp_state_cap >> 16 : - rp_state_cap >> 0) & 0xff; - max_freq *= (IS_GEN9_BC(i915) || - GRAPHICS_VER(i915) >= 11 ? GEN9_FREQ_SCALER : 1); + intel_gpu_freq(rps, caps.rp1_freq)); drm_printf(p, "Max non-overclocked (RP0) frequency: %dMHz\n", - intel_gpu_freq(rps, max_freq)); + intel_gpu_freq(rps, caps.rp0_freq)); drm_printf(p, "Max overclocked frequency: %dMHz\n", intel_gpu_freq(rps, rps->max_freq)); diff --git a/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.h b/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.h index a8457887ec65..0ace8c2da0ac 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.h +++ b/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.h @@ -14,7 +14,7 @@ void intel_gt_pm_debugfs_register(struct intel_gt *gt, struct dentry *root); void intel_gt_pm_frequency_dump(struct intel_gt *gt, struct drm_printer *m); /* functions that need to be accessed by the upper level non-gt interfaces */ -int intel_gt_pm_debugfs_forcewake_user_open(struct intel_gt *gt); -int intel_gt_pm_debugfs_forcewake_user_release(struct intel_gt *gt); +void intel_gt_pm_debugfs_forcewake_user_open(struct intel_gt *gt); +void intel_gt_pm_debugfs_forcewake_user_release(struct intel_gt *gt); #endif /* INTEL_GT_PM_DEBUGFS_H */ diff --git a/drivers/gpu/drm/i915/gt/intel_gt_regs.h b/drivers/gpu/drm/i915/gt/intel_gt_regs.h index 201b507c9dde..a39718a40cc3 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_regs.h +++ b/drivers/gpu/drm/i915/gt/intel_gt_regs.h @@ -46,6 +46,7 @@ #define GEN8_MCR_SLICE_MASK GEN8_MCR_SLICE(3) #define GEN8_MCR_SUBSLICE(subslice) (((subslice) & 3) << 24) #define GEN8_MCR_SUBSLICE_MASK GEN8_MCR_SUBSLICE(3) +#define GEN11_MCR_MULTICAST REG_BIT(31) #define GEN11_MCR_SLICE(slice) (((slice) & 0xf) << 27) #define GEN11_MCR_SLICE_MASK GEN11_MCR_SLICE(0xf) #define GEN11_MCR_SUBSLICE(subslice) (((subslice) & 0x7) << 24) @@ -840,6 +841,24 @@ #define CTC_SHIFT_PARAMETER_SHIFT 1 #define CTC_SHIFT_PARAMETER_MASK (0x3 << CTC_SHIFT_PARAMETER_SHIFT) +/* GPM MSG_IDLE */ +#define MSG_IDLE_CS _MMIO(0x8000) +#define MSG_IDLE_VCS0 _MMIO(0x8004) +#define MSG_IDLE_VCS1 _MMIO(0x8008) +#define MSG_IDLE_BCS _MMIO(0x800C) +#define MSG_IDLE_VECS0 _MMIO(0x8010) +#define MSG_IDLE_VCS2 _MMIO(0x80C0) +#define MSG_IDLE_VCS3 _MMIO(0x80C4) +#define MSG_IDLE_VCS4 _MMIO(0x80C8) +#define MSG_IDLE_VCS5 _MMIO(0x80CC) +#define MSG_IDLE_VCS6 _MMIO(0x80D0) +#define MSG_IDLE_VCS7 _MMIO(0x80D4) +#define MSG_IDLE_VECS1 _MMIO(0x80D8) +#define MSG_IDLE_VECS2 _MMIO(0x80DC) +#define MSG_IDLE_VECS3 _MMIO(0x80E0) +#define MSG_IDLE_FW_MASK REG_GENMASK(13, 9) +#define MSG_IDLE_FW_SHIFT 9 + #define FORCEWAKE_MEDIA_GEN9 _MMIO(0xa270) #define FORCEWAKE_RENDER_GEN9 _MMIO(0xa278) @@ -1087,6 +1106,7 @@ #define EU_PERF_CNTL3 _MMIO(0xe758) #define LSC_CHICKEN_BIT_0 _MMIO(0xe7c8) +#define DISABLE_D8_D16_COASLESCE REG_BIT(30) #define FORCE_1_SUB_MESSAGE_PER_FRAGMENT REG_BIT(15) #define LSC_CHICKEN_BIT_0_UDW _MMIO(0xe7c8 + 4) #define DIS_CHAIN_2XSIMD8 REG_BIT(55 - 32) @@ -1482,6 +1502,7 @@ #define OTHER_GUC_INSTANCE 0 #define OTHER_GTPM_INSTANCE 1 #define OTHER_KCR_INSTANCE 4 +#define OTHER_GSC_INSTANCE 6 #define GEN11_IIR_REG_SELECTOR(x) _MMIO(0x190070 + ((x) * 4)) diff --git a/drivers/gpu/drm/i915/gt/intel_gt_sysfs.c b/drivers/gpu/drm/i915/gt/intel_gt_sysfs.c new file mode 100644 index 000000000000..8ec8bc660c8c --- /dev/null +++ b/drivers/gpu/drm/i915/gt/intel_gt_sysfs.c @@ -0,0 +1,122 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright © 2022 Intel Corporation + */ + +#include <drm/drm_device.h> +#include <linux/device.h> +#include <linux/kobject.h> +#include <linux/printk.h> +#include <linux/sysfs.h> + +#include "i915_drv.h" +#include "i915_sysfs.h" +#include "intel_gt.h" +#include "intel_gt_sysfs.h" +#include "intel_gt_sysfs_pm.h" +#include "intel_gt_types.h" +#include "intel_rc6.h" + +bool is_object_gt(struct kobject *kobj) +{ + return !strncmp(kobj->name, "gt", 2); +} + +static struct intel_gt *kobj_to_gt(struct kobject *kobj) +{ + return container_of(kobj, struct kobj_gt, base)->gt; +} + +struct intel_gt *intel_gt_sysfs_get_drvdata(struct device *dev, + const char *name) +{ + struct kobject *kobj = &dev->kobj; + + /* + * We are interested at knowing from where the interface + * has been called, whether it's called from gt/ or from + * the parent directory. + * From the interface position it depends also the value of + * the private data. + * If the interface is called from gt/ then private data is + * of the "struct intel_gt *" type, otherwise it's * a + * "struct drm_i915_private *" type. + */ + if (!is_object_gt(kobj)) { + struct drm_i915_private *i915 = kdev_minor_to_i915(dev); + + return to_gt(i915); + } + + return kobj_to_gt(kobj); +} + +static struct kobject *gt_get_parent_obj(struct intel_gt *gt) +{ + return >->i915->drm.primary->kdev->kobj; +} + +static ssize_t id_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name); + + return sysfs_emit(buf, "%u\n", gt->info.id); +} +static DEVICE_ATTR_RO(id); + +static struct attribute *id_attrs[] = { + &dev_attr_id.attr, + NULL, +}; +ATTRIBUTE_GROUPS(id); + +static void kobj_gt_release(struct kobject *kobj) +{ + kfree(kobj); +} + +static struct kobj_type kobj_gt_type = { + .release = kobj_gt_release, + .sysfs_ops = &kobj_sysfs_ops, + .default_groups = id_groups, +}; + +void intel_gt_sysfs_register(struct intel_gt *gt) +{ + struct kobj_gt *kg; + + /* + * We need to make things right with the + * ABI compatibility. The files were originally + * generated under the parent directory. + * + * We generate the files only for gt 0 + * to avoid duplicates. + */ + if (gt_is_root(gt)) + intel_gt_sysfs_pm_init(gt, gt_get_parent_obj(gt)); + + kg = kzalloc(sizeof(*kg), GFP_KERNEL); + if (!kg) + goto exit_fail; + + kobject_init(&kg->base, &kobj_gt_type); + kg->gt = gt; + + /* xfer ownership to sysfs tree */ + if (kobject_add(&kg->base, gt->i915->sysfs_gt, "gt%d", gt->info.id)) + goto exit_kobj_put; + + intel_gt_sysfs_pm_init(gt, &kg->base); + + return; + +exit_kobj_put: + kobject_put(&kg->base); + +exit_fail: + drm_warn(>->i915->drm, + "failed to initialize gt%d sysfs root\n", gt->info.id); +} diff --git a/drivers/gpu/drm/i915/gt/intel_gt_sysfs.h b/drivers/gpu/drm/i915/gt/intel_gt_sysfs.h new file mode 100644 index 000000000000..9471b26752cf --- /dev/null +++ b/drivers/gpu/drm/i915/gt/intel_gt_sysfs.h @@ -0,0 +1,34 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright © 2022 Intel Corporation + */ + +#ifndef __SYSFS_GT_H__ +#define __SYSFS_GT_H__ + +#include <linux/ctype.h> +#include <linux/kobject.h> + +#include "i915_gem.h" /* GEM_BUG_ON() */ + +struct intel_gt; + +struct kobj_gt { + struct kobject base; + struct intel_gt *gt; +}; + +bool is_object_gt(struct kobject *kobj); + +struct drm_i915_private *kobj_to_i915(struct kobject *kobj); + +struct kobject * +intel_gt_create_kobj(struct intel_gt *gt, + struct kobject *dir, + const char *name); + +void intel_gt_sysfs_register(struct intel_gt *gt); +struct intel_gt *intel_gt_sysfs_get_drvdata(struct device *dev, + const char *name); + +#endif /* SYSFS_GT_H */ diff --git a/drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c b/drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c new file mode 100644 index 000000000000..26cbfa6477d1 --- /dev/null +++ b/drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c @@ -0,0 +1,601 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright © 2022 Intel Corporation + */ + +#include <drm/drm_device.h> +#include <linux/sysfs.h> +#include <linux/printk.h> + +#include "i915_drv.h" +#include "i915_reg.h" +#include "i915_sysfs.h" +#include "intel_gt.h" +#include "intel_gt_regs.h" +#include "intel_gt_sysfs.h" +#include "intel_gt_sysfs_pm.h" +#include "intel_rc6.h" +#include "intel_rps.h" + +#ifdef CONFIG_PM +enum intel_gt_sysfs_op { + INTEL_GT_SYSFS_MIN = 0, + INTEL_GT_SYSFS_MAX, +}; + +static int +sysfs_gt_attribute_w_func(struct device *dev, struct device_attribute *attr, + int (func)(struct intel_gt *gt, u32 val), u32 val) +{ + struct intel_gt *gt; + int ret; + + if (!is_object_gt(&dev->kobj)) { + int i; + struct drm_i915_private *i915 = kdev_minor_to_i915(dev); + + for_each_gt(gt, i915, i) { + ret = func(gt, val); + if (ret) + break; + } + } else { + gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name); + ret = func(gt, val); + } + + return ret; +} + +static u32 +sysfs_gt_attribute_r_func(struct device *dev, struct device_attribute *attr, + u32 (func)(struct intel_gt *gt), + enum intel_gt_sysfs_op op) +{ + struct intel_gt *gt; + u32 ret; + + ret = (op == INTEL_GT_SYSFS_MAX) ? 0 : (u32) -1; + + if (!is_object_gt(&dev->kobj)) { + int i; + struct drm_i915_private *i915 = kdev_minor_to_i915(dev); + + for_each_gt(gt, i915, i) { + u32 val = func(gt); + + switch (op) { + case INTEL_GT_SYSFS_MIN: + if (val < ret) + ret = val; + break; + + case INTEL_GT_SYSFS_MAX: + if (val > ret) + ret = val; + break; + } + } + } else { + gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name); + ret = func(gt); + } + + return ret; +} + +/* RC6 interfaces will show the minimum RC6 residency value */ +#define sysfs_gt_attribute_r_min_func(d, a, f) \ + sysfs_gt_attribute_r_func(d, a, f, INTEL_GT_SYSFS_MIN) + +/* Frequency interfaces will show the maximum frequency value */ +#define sysfs_gt_attribute_r_max_func(d, a, f) \ + sysfs_gt_attribute_r_func(d, a, f, INTEL_GT_SYSFS_MAX) + +static u32 get_residency(struct intel_gt *gt, i915_reg_t reg) +{ + intel_wakeref_t wakeref; + u64 res = 0; + + with_intel_runtime_pm(gt->uncore->rpm, wakeref) + res = intel_rc6_residency_us(>->rc6, reg); + + return DIV_ROUND_CLOSEST_ULL(res, 1000); +} + +static ssize_t rc6_enable_show(struct device *dev, + struct device_attribute *attr, + char *buff) +{ + struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name); + u8 mask = 0; + + if (HAS_RC6(gt->i915)) + mask |= BIT(0); + if (HAS_RC6p(gt->i915)) + mask |= BIT(1); + if (HAS_RC6pp(gt->i915)) + mask |= BIT(2); + + return sysfs_emit(buff, "%x\n", mask); +} + +static u32 __rc6_residency_ms_show(struct intel_gt *gt) +{ + return get_residency(gt, GEN6_GT_GFX_RC6); +} + +static ssize_t rc6_residency_ms_show(struct device *dev, + struct device_attribute *attr, + char *buff) +{ + u32 rc6_residency = sysfs_gt_attribute_r_min_func(dev, attr, + __rc6_residency_ms_show); + + return sysfs_emit(buff, "%u\n", rc6_residency); +} + +static u32 __rc6p_residency_ms_show(struct intel_gt *gt) +{ + return get_residency(gt, GEN6_GT_GFX_RC6p); +} + +static ssize_t rc6p_residency_ms_show(struct device *dev, + struct device_attribute *attr, + char *buff) +{ + u32 rc6p_residency = sysfs_gt_attribute_r_min_func(dev, attr, + __rc6p_residency_ms_show); + + return sysfs_emit(buff, "%u\n", rc6p_residency); +} + +static u32 __rc6pp_residency_ms_show(struct intel_gt *gt) +{ + return get_residency(gt, GEN6_GT_GFX_RC6pp); +} + +static ssize_t rc6pp_residency_ms_show(struct device *dev, + struct device_attribute *attr, + char *buff) +{ + u32 rc6pp_residency = sysfs_gt_attribute_r_min_func(dev, attr, + __rc6pp_residency_ms_show); + + return sysfs_emit(buff, "%u\n", rc6pp_residency); +} + +static u32 __media_rc6_residency_ms_show(struct intel_gt *gt) +{ + return get_residency(gt, VLV_GT_MEDIA_RC6); +} + +static ssize_t media_rc6_residency_ms_show(struct device *dev, + struct device_attribute *attr, + char *buff) +{ + u32 rc6_residency = sysfs_gt_attribute_r_min_func(dev, attr, + __media_rc6_residency_ms_show); + + return sysfs_emit(buff, "%u\n", rc6_residency); +} + +static DEVICE_ATTR_RO(rc6_enable); +static DEVICE_ATTR_RO(rc6_residency_ms); +static DEVICE_ATTR_RO(rc6p_residency_ms); +static DEVICE_ATTR_RO(rc6pp_residency_ms); +static DEVICE_ATTR_RO(media_rc6_residency_ms); + +static struct attribute *rc6_attrs[] = { + &dev_attr_rc6_enable.attr, + &dev_attr_rc6_residency_ms.attr, + NULL +}; + +static struct attribute *rc6p_attrs[] = { + &dev_attr_rc6p_residency_ms.attr, + &dev_attr_rc6pp_residency_ms.attr, + NULL +}; + +static struct attribute *media_rc6_attrs[] = { + &dev_attr_media_rc6_residency_ms.attr, + NULL +}; + +static const struct attribute_group rc6_attr_group[] = { + { .attrs = rc6_attrs, }, + { .name = power_group_name, .attrs = rc6_attrs, }, +}; + +static const struct attribute_group rc6p_attr_group[] = { + { .attrs = rc6p_attrs, }, + { .name = power_group_name, .attrs = rc6p_attrs, }, +}; + +static const struct attribute_group media_rc6_attr_group[] = { + { .attrs = media_rc6_attrs, }, + { .name = power_group_name, .attrs = media_rc6_attrs, }, +}; + +static int __intel_gt_sysfs_create_group(struct kobject *kobj, + const struct attribute_group *grp) +{ + return is_object_gt(kobj) ? + sysfs_create_group(kobj, &grp[0]) : + sysfs_merge_group(kobj, &grp[1]); +} + +static void intel_sysfs_rc6_init(struct intel_gt *gt, struct kobject *kobj) +{ + int ret; + + if (!HAS_RC6(gt->i915)) + return; + + ret = __intel_gt_sysfs_create_group(kobj, rc6_attr_group); + if (ret) + drm_warn(>->i915->drm, + "failed to create gt%u RC6 sysfs files (%pe)\n", + gt->info.id, ERR_PTR(ret)); + + /* + * cannot use the is_visible() attribute because + * the upper object inherits from the parent group. + */ + if (HAS_RC6p(gt->i915)) { + ret = __intel_gt_sysfs_create_group(kobj, rc6p_attr_group); + if (ret) + drm_warn(>->i915->drm, + "failed to create gt%u RC6p sysfs files (%pe)\n", + gt->info.id, ERR_PTR(ret)); + } + + if (IS_VALLEYVIEW(gt->i915) || IS_CHERRYVIEW(gt->i915)) { + ret = __intel_gt_sysfs_create_group(kobj, media_rc6_attr_group); + if (ret) + drm_warn(>->i915->drm, + "failed to create media %u RC6 sysfs files (%pe)\n", + gt->info.id, ERR_PTR(ret)); + } +} +#else +static void intel_sysfs_rc6_init(struct intel_gt *gt, struct kobject *kobj) +{ +} +#endif /* CONFIG_PM */ + +static u32 __act_freq_mhz_show(struct intel_gt *gt) +{ + return intel_rps_read_actual_frequency(>->rps); +} + +static ssize_t act_freq_mhz_show(struct device *dev, + struct device_attribute *attr, char *buff) +{ + u32 actual_freq = sysfs_gt_attribute_r_max_func(dev, attr, + __act_freq_mhz_show); + + return sysfs_emit(buff, "%u\n", actual_freq); +} + +static u32 __cur_freq_mhz_show(struct intel_gt *gt) +{ + return intel_rps_get_requested_frequency(>->rps); +} + +static ssize_t cur_freq_mhz_show(struct device *dev, + struct device_attribute *attr, char *buff) +{ + u32 cur_freq = sysfs_gt_attribute_r_max_func(dev, attr, + __cur_freq_mhz_show); + + return sysfs_emit(buff, "%u\n", cur_freq); +} + +static u32 __boost_freq_mhz_show(struct intel_gt *gt) +{ + return intel_rps_get_boost_frequency(>->rps); +} + +static ssize_t boost_freq_mhz_show(struct device *dev, + struct device_attribute *attr, + char *buff) +{ + u32 boost_freq = sysfs_gt_attribute_r_max_func(dev, attr, + __boost_freq_mhz_show); + + return sysfs_emit(buff, "%u\n", boost_freq); +} + +static int __boost_freq_mhz_store(struct intel_gt *gt, u32 val) +{ + return intel_rps_set_boost_frequency(>->rps, val); +} + +static ssize_t boost_freq_mhz_store(struct device *dev, + struct device_attribute *attr, + const char *buff, size_t count) +{ + ssize_t ret; + u32 val; + + ret = kstrtou32(buff, 0, &val); + if (ret) + return ret; + + return sysfs_gt_attribute_w_func(dev, attr, + __boost_freq_mhz_store, val) ?: count; +} + +static u32 __rp0_freq_mhz_show(struct intel_gt *gt) +{ + return intel_rps_get_rp0_frequency(>->rps); +} + +static ssize_t RP0_freq_mhz_show(struct device *dev, + struct device_attribute *attr, char *buff) +{ + u32 rp0_freq = sysfs_gt_attribute_r_max_func(dev, attr, + __rp0_freq_mhz_show); + + return sysfs_emit(buff, "%u\n", rp0_freq); +} + +static u32 __rp1_freq_mhz_show(struct intel_gt *gt) +{ + return intel_rps_get_rp1_frequency(>->rps); +} + +static ssize_t RP1_freq_mhz_show(struct device *dev, + struct device_attribute *attr, char *buff) +{ + u32 rp1_freq = sysfs_gt_attribute_r_max_func(dev, attr, + __rp1_freq_mhz_show); + + return sysfs_emit(buff, "%u\n", rp1_freq); +} + +static u32 __rpn_freq_mhz_show(struct intel_gt *gt) +{ + return intel_rps_get_rpn_frequency(>->rps); +} + +static ssize_t RPn_freq_mhz_show(struct device *dev, + struct device_attribute *attr, char *buff) +{ + u32 rpn_freq = sysfs_gt_attribute_r_max_func(dev, attr, + __rpn_freq_mhz_show); + + return sysfs_emit(buff, "%u\n", rpn_freq); +} + +static u32 __max_freq_mhz_show(struct intel_gt *gt) +{ + return intel_rps_get_max_frequency(>->rps); +} + +static ssize_t max_freq_mhz_show(struct device *dev, + struct device_attribute *attr, char *buff) +{ + u32 max_freq = sysfs_gt_attribute_r_max_func(dev, attr, + __max_freq_mhz_show); + + return sysfs_emit(buff, "%u\n", max_freq); +} + +static int __set_max_freq(struct intel_gt *gt, u32 val) +{ + return intel_rps_set_max_frequency(>->rps, val); +} + +static ssize_t max_freq_mhz_store(struct device *dev, + struct device_attribute *attr, + const char *buff, size_t count) +{ + int ret; + u32 val; + + ret = kstrtou32(buff, 0, &val); + if (ret) + return ret; + + ret = sysfs_gt_attribute_w_func(dev, attr, __set_max_freq, val); + + return ret ?: count; +} + +static u32 __min_freq_mhz_show(struct intel_gt *gt) +{ + return intel_rps_get_min_frequency(>->rps); +} + +static ssize_t min_freq_mhz_show(struct device *dev, + struct device_attribute *attr, char *buff) +{ + u32 min_freq = sysfs_gt_attribute_r_min_func(dev, attr, + __min_freq_mhz_show); + + return sysfs_emit(buff, "%u\n", min_freq); +} + +static int __set_min_freq(struct intel_gt *gt, u32 val) +{ + return intel_rps_set_min_frequency(>->rps, val); +} + +static ssize_t min_freq_mhz_store(struct device *dev, + struct device_attribute *attr, + const char *buff, size_t count) +{ + int ret; + u32 val; + + ret = kstrtou32(buff, 0, &val); + if (ret) + return ret; + + ret = sysfs_gt_attribute_w_func(dev, attr, __set_min_freq, val); + + return ret ?: count; +} + +static u32 __vlv_rpe_freq_mhz_show(struct intel_gt *gt) +{ + struct intel_rps *rps = >->rps; + + return intel_gpu_freq(rps, rps->efficient_freq); +} + +static ssize_t vlv_rpe_freq_mhz_show(struct device *dev, + struct device_attribute *attr, char *buff) +{ + u32 rpe_freq = sysfs_gt_attribute_r_max_func(dev, attr, + __vlv_rpe_freq_mhz_show); + + return sysfs_emit(buff, "%u\n", rpe_freq); +} + +#define INTEL_GT_RPS_SYSFS_ATTR(_name, _mode, _show, _store) \ + struct device_attribute dev_attr_gt_##_name = __ATTR(gt_##_name, _mode, _show, _store); \ + struct device_attribute dev_attr_rps_##_name = __ATTR(rps_##_name, _mode, _show, _store) + +#define INTEL_GT_RPS_SYSFS_ATTR_RO(_name) \ + INTEL_GT_RPS_SYSFS_ATTR(_name, 0444, _name##_show, NULL) +#define INTEL_GT_RPS_SYSFS_ATTR_RW(_name) \ + INTEL_GT_RPS_SYSFS_ATTR(_name, 0644, _name##_show, _name##_store) + +static INTEL_GT_RPS_SYSFS_ATTR_RO(act_freq_mhz); +static INTEL_GT_RPS_SYSFS_ATTR_RO(cur_freq_mhz); +static INTEL_GT_RPS_SYSFS_ATTR_RW(boost_freq_mhz); +static INTEL_GT_RPS_SYSFS_ATTR_RO(RP0_freq_mhz); +static INTEL_GT_RPS_SYSFS_ATTR_RO(RP1_freq_mhz); +static INTEL_GT_RPS_SYSFS_ATTR_RO(RPn_freq_mhz); +static INTEL_GT_RPS_SYSFS_ATTR_RW(max_freq_mhz); +static INTEL_GT_RPS_SYSFS_ATTR_RW(min_freq_mhz); + +static DEVICE_ATTR_RO(vlv_rpe_freq_mhz); + +#define GEN6_ATTR(s) { \ + &dev_attr_##s##_act_freq_mhz.attr, \ + &dev_attr_##s##_cur_freq_mhz.attr, \ + &dev_attr_##s##_boost_freq_mhz.attr, \ + &dev_attr_##s##_max_freq_mhz.attr, \ + &dev_attr_##s##_min_freq_mhz.attr, \ + &dev_attr_##s##_RP0_freq_mhz.attr, \ + &dev_attr_##s##_RP1_freq_mhz.attr, \ + &dev_attr_##s##_RPn_freq_mhz.attr, \ + NULL, \ + } + +#define GEN6_RPS_ATTR GEN6_ATTR(rps) +#define GEN6_GT_ATTR GEN6_ATTR(gt) + +static const struct attribute * const gen6_rps_attrs[] = GEN6_RPS_ATTR; +static const struct attribute * const gen6_gt_attrs[] = GEN6_GT_ATTR; + +static ssize_t punit_req_freq_mhz_show(struct device *dev, + struct device_attribute *attr, + char *buff) +{ + struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name); + u32 preq = intel_rps_read_punit_req_frequency(>->rps); + + return sysfs_emit(buff, "%u\n", preq); +} + +struct intel_gt_bool_throttle_attr { + struct attribute attr; + ssize_t (*show)(struct device *dev, struct device_attribute *attr, + char *buf); + i915_reg_t reg32; + u32 mask; +}; + +static ssize_t throttle_reason_bool_show(struct device *dev, + struct device_attribute *attr, + char *buff) +{ + struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name); + struct intel_gt_bool_throttle_attr *t_attr = + (struct intel_gt_bool_throttle_attr *) attr; + bool val = rps_read_mask_mmio(>->rps, t_attr->reg32, t_attr->mask); + + return sysfs_emit(buff, "%u\n", val); +} + +#define INTEL_GT_RPS_BOOL_ATTR_RO(sysfs_func__, mask__) \ +struct intel_gt_bool_throttle_attr attr_##sysfs_func__ = { \ + .attr = { .name = __stringify(sysfs_func__), .mode = 0444 }, \ + .show = throttle_reason_bool_show, \ + .reg32 = GT0_PERF_LIMIT_REASONS, \ + .mask = mask__, \ +} + +static DEVICE_ATTR_RO(punit_req_freq_mhz); +static INTEL_GT_RPS_BOOL_ATTR_RO(throttle_reason_status, GT0_PERF_LIMIT_REASONS_MASK); +static INTEL_GT_RPS_BOOL_ATTR_RO(throttle_reason_pl1, POWER_LIMIT_1_MASK); +static INTEL_GT_RPS_BOOL_ATTR_RO(throttle_reason_pl2, POWER_LIMIT_2_MASK); +static INTEL_GT_RPS_BOOL_ATTR_RO(throttle_reason_pl4, POWER_LIMIT_4_MASK); +static INTEL_GT_RPS_BOOL_ATTR_RO(throttle_reason_thermal, THERMAL_LIMIT_MASK); +static INTEL_GT_RPS_BOOL_ATTR_RO(throttle_reason_prochot, PROCHOT_MASK); +static INTEL_GT_RPS_BOOL_ATTR_RO(throttle_reason_ratl, RATL_MASK); +static INTEL_GT_RPS_BOOL_ATTR_RO(throttle_reason_vr_thermalert, VR_THERMALERT_MASK); +static INTEL_GT_RPS_BOOL_ATTR_RO(throttle_reason_vr_tdc, VR_TDC_MASK); + +static const struct attribute *freq_attrs[] = { + &dev_attr_punit_req_freq_mhz.attr, + &attr_throttle_reason_status.attr, + &attr_throttle_reason_pl1.attr, + &attr_throttle_reason_pl2.attr, + &attr_throttle_reason_pl4.attr, + &attr_throttle_reason_thermal.attr, + &attr_throttle_reason_prochot.attr, + &attr_throttle_reason_ratl.attr, + &attr_throttle_reason_vr_thermalert.attr, + &attr_throttle_reason_vr_tdc.attr, + NULL +}; + +static int intel_sysfs_rps_init(struct intel_gt *gt, struct kobject *kobj, + const struct attribute * const *attrs) +{ + int ret; + + if (GRAPHICS_VER(gt->i915) < 6) + return 0; + + ret = sysfs_create_files(kobj, attrs); + if (ret) + return ret; + + if (IS_VALLEYVIEW(gt->i915) || IS_CHERRYVIEW(gt->i915)) + ret = sysfs_create_file(kobj, &dev_attr_vlv_rpe_freq_mhz.attr); + + return ret; +} + +void intel_gt_sysfs_pm_init(struct intel_gt *gt, struct kobject *kobj) +{ + int ret; + + intel_sysfs_rc6_init(gt, kobj); + + ret = is_object_gt(kobj) ? + intel_sysfs_rps_init(gt, kobj, gen6_rps_attrs) : + intel_sysfs_rps_init(gt, kobj, gen6_gt_attrs); + if (ret) + drm_warn(>->i915->drm, + "failed to create gt%u RPS sysfs files (%pe)", + gt->info.id, ERR_PTR(ret)); + + /* end of the legacy interfaces */ + if (!is_object_gt(kobj)) + return; + + ret = sysfs_create_files(kobj, freq_attrs); + if (ret) + drm_warn(>->i915->drm, + "failed to create gt%u throttle sysfs files (%pe)", + gt->info.id, ERR_PTR(ret)); +} diff --git a/drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.h b/drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.h new file mode 100644 index 000000000000..f567105a4a89 --- /dev/null +++ b/drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright © 2022 Intel Corporation + */ + +#ifndef __SYSFS_GT_PM_H__ +#define __SYSFS_GT_PM_H__ + +#include <linux/kobject.h> + +#include "intel_gt_types.h" + +void intel_gt_sysfs_pm_init(struct intel_gt *gt, struct kobject *kobj); + +#endif /* SYSFS_RC6_H */ diff --git a/drivers/gpu/drm/i915/gt/intel_gt_types.h b/drivers/gpu/drm/i915/gt/intel_gt_types.h index f20687796490..b06611c1d4ad 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_types.h +++ b/drivers/gpu/drm/i915/gt/intel_gt_types.h @@ -16,10 +16,12 @@ #include <linux/workqueue.h> #include "uc/intel_uc.h" +#include "intel_gsc.h" #include "i915_vma.h" #include "intel_engine_types.h" #include "intel_gt_buffer_pool_types.h" +#include "intel_hwconfig.h" #include "intel_llc_types.h" #include "intel_reset_types.h" #include "intel_rc6_types.h" @@ -72,6 +74,7 @@ struct intel_gt { struct i915_ggtt *ggtt; struct intel_uc uc; + struct intel_gsc gsc; struct mutex tlb_invalidate_lock; @@ -182,7 +185,19 @@ struct intel_gt { const struct intel_mmio_range *steering_table[NUM_STEERING_TYPES]; + struct { + u8 groupid; + u8 instanceid; + } default_steering; + + /* + * Base of per-tile GTTMMADR where we can derive the MMIO and the GGTT. + */ + phys_addr_t phys_addr; + struct intel_gt_info { + unsigned int id; + intel_engine_mask_t engine_mask; u32 l3bank_mask; @@ -199,6 +214,9 @@ struct intel_gt { struct sseu_dev_info sseu; unsigned long mslice_mask; + + /** @hwconfig: hardware configuration data */ + struct intel_hwconfig hwconfig; } info; struct { diff --git a/drivers/gpu/drm/i915/gt/intel_gtt.c b/drivers/gpu/drm/i915/gt/intel_gtt.c index cc53b481a1c5..b67831833c9a 100644 --- a/drivers/gpu/drm/i915/gt/intel_gtt.c +++ b/drivers/gpu/drm/i915/gt/intel_gtt.c @@ -109,32 +109,52 @@ int map_pt_dma_locked(struct i915_address_space *vm, struct drm_i915_gem_object return 0; } -void __i915_vm_close(struct i915_address_space *vm) +static void clear_vm_list(struct list_head *list) { struct i915_vma *vma, *vn; - if (!atomic_dec_and_mutex_lock(&vm->open, &vm->mutex)) - return; - - list_for_each_entry_safe(vma, vn, &vm->bound_list, vm_link) { + list_for_each_entry_safe(vma, vn, list, vm_link) { struct drm_i915_gem_object *obj = vma->obj; - if (!kref_get_unless_zero(&obj->base.refcount)) { + if (!i915_gem_object_get_rcu(obj)) { /* - * Unbind the dying vma to ensure the bound_list + * Object is dying, but has not yet cleared its + * vma list. + * Unbind the dying vma to ensure our list * is completely drained. We leave the destruction to - * the object destructor. + * the object destructor to avoid the vma + * disappearing under it. */ atomic_and(~I915_VMA_PIN_MASK, &vma->flags); WARN_ON(__i915_vma_unbind(vma)); - continue; + + /* Remove from the unbound list */ + list_del_init(&vma->vm_link); + + /* + * Delay the vm and vm mutex freeing until the + * object is done with destruction. + */ + i915_vm_resv_get(vma->vm); + vma->vm_ddestroy = true; + } else { + i915_vma_destroy_locked(vma); + i915_gem_object_put(obj); } - /* Keep the obj (and hence the vma) alive as _we_ destroy it */ - i915_vma_destroy_locked(vma); - i915_gem_object_put(obj); } +} + +static void __i915_vm_close(struct i915_address_space *vm) +{ + mutex_lock(&vm->mutex); + + clear_vm_list(&vm->bound_list); + clear_vm_list(&vm->unbound_list); + + /* Check for must-fix unanticipated side-effects */ GEM_BUG_ON(!list_empty(&vm->bound_list)); + GEM_BUG_ON(!list_empty(&vm->unbound_list)); mutex_unlock(&vm->mutex); } @@ -156,7 +176,6 @@ int i915_vm_lock_objects(struct i915_address_space *vm, void i915_address_space_fini(struct i915_address_space *vm) { drm_mm_takedown(&vm->mm); - mutex_destroy(&vm->mutex); } /** @@ -164,7 +183,8 @@ void i915_address_space_fini(struct i915_address_space *vm) * @kref: Pointer to the &i915_address_space.resv_ref member. * * This function is called when the last lock sharer no longer shares the - * &i915_address_space._resv lock. + * &i915_address_space._resv lock, and also if we raced when + * destroying a vma by the vma destruction */ void i915_vm_resv_release(struct kref *kref) { @@ -172,6 +192,8 @@ void i915_vm_resv_release(struct kref *kref) container_of(kref, typeof(*vm), resv_ref); dma_resv_fini(&vm->_resv); + mutex_destroy(&vm->mutex); + kfree(vm); } @@ -180,6 +202,8 @@ static void __i915_vm_release(struct work_struct *work) struct i915_address_space *vm = container_of(work, struct i915_address_space, release_work); + __i915_vm_close(vm); + /* Synchronize async unbinds. */ i915_vma_resource_bind_dep_sync_all(vm); @@ -213,7 +237,6 @@ void i915_address_space_init(struct i915_address_space *vm, int subclass) vm->pending_unbind = RB_ROOT_CACHED; INIT_WORK(&vm->release_work, __i915_vm_release); - atomic_set(&vm->open, 1); /* * The vm->mutex must be reclaim safe (for use in the shrinker). @@ -258,6 +281,7 @@ void i915_address_space_init(struct i915_address_space *vm, int subclass) vm->mm.head_node.color = I915_COLOR_UNEVICTABLE; INIT_LIST_HEAD(&vm->bound_list); + INIT_LIST_HEAD(&vm->unbound_list); } void *__px_vaddr(struct drm_i915_gem_object *p) @@ -286,7 +310,7 @@ fill_page_dma(struct drm_i915_gem_object *p, const u64 val, unsigned int count) void *vaddr = __px_vaddr(p); memset64(vaddr, val, count); - clflush_cache_range(vaddr, PAGE_SIZE); + drm_clflush_virt_range(vaddr, PAGE_SIZE); } static void poison_scratch_page(struct drm_i915_gem_object *scratch) diff --git a/drivers/gpu/drm/i915/gt/intel_gtt.h b/drivers/gpu/drm/i915/gt/intel_gtt.h index ba7025388a5e..a40d928b3888 100644 --- a/drivers/gpu/drm/i915/gt/intel_gtt.h +++ b/drivers/gpu/drm/i915/gt/intel_gtt.h @@ -240,15 +240,6 @@ struct i915_address_space { unsigned int bind_async_flags; - /* - * Each active user context has its own address space (in full-ppgtt). - * Since the vm may be shared between multiple contexts, we count how - * many contexts keep us "open". Once open hits zero, we are closed - * and do not allow any new attachments, and proceed to shutdown our - * vma and page directories. - */ - atomic_t open; - struct mutex mutex; /* protects vma and our lists */ struct kref resv_ref; /* kref to keep the reservation lock alive. */ @@ -263,6 +254,11 @@ struct i915_address_space { */ struct list_head bound_list; + /** + * List of vmas not yet bound or evicted. + */ + struct list_head unbound_list; + /* Global GTT */ bool is_ggtt:1; @@ -272,6 +268,9 @@ struct i915_address_space { /* Some systems support read-only mappings for GGTT and/or PPGTT */ bool has_read_only:1; + /* Skip pte rewrite on unbind for suspend. Protected by @mutex */ + bool skip_pte_rewrite:1; + u8 top; u8 pd_shift; u8 scratch_order; @@ -448,6 +447,17 @@ i915_vm_get(struct i915_address_space *vm) return vm; } +static inline struct i915_address_space * +i915_vm_tryget(struct i915_address_space *vm) +{ + return kref_get_unless_zero(&vm->ref) ? vm : NULL; +} + +static inline void assert_vm_alive(struct i915_address_space *vm) +{ + GEM_BUG_ON(!kref_read(&vm->ref)); +} + /** * i915_vm_resv_get - Obtain a reference on the vm's reservation lock * @vm: The vm whose reservation lock we want to share. @@ -478,34 +488,6 @@ static inline void i915_vm_resv_put(struct i915_address_space *vm) kref_put(&vm->resv_ref, i915_vm_resv_release); } -static inline struct i915_address_space * -i915_vm_open(struct i915_address_space *vm) -{ - GEM_BUG_ON(!atomic_read(&vm->open)); - atomic_inc(&vm->open); - return i915_vm_get(vm); -} - -static inline bool -i915_vm_tryopen(struct i915_address_space *vm) -{ - if (atomic_add_unless(&vm->open, 1, 0)) - return i915_vm_get(vm); - - return false; -} - -void __i915_vm_close(struct i915_address_space *vm); - -static inline void -i915_vm_close(struct i915_address_space *vm) -{ - GEM_BUG_ON(!atomic_read(&vm->open)); - __i915_vm_close(vm); - - i915_vm_put(vm); -} - void i915_address_space_init(struct i915_address_space *vm, int subclass); void i915_address_space_fini(struct i915_address_space *vm); @@ -567,6 +549,14 @@ i915_page_dir_dma_addr(const struct i915_ppgtt *ppgtt, const unsigned int n) void ppgtt_init(struct i915_ppgtt *ppgtt, struct intel_gt *gt, unsigned long lmem_pt_obj_flags); +void intel_ggtt_bind_vma(struct i915_address_space *vm, + struct i915_vm_pt_stash *stash, + struct i915_vma_resource *vma_res, + enum i915_cache_level cache_level, + u32 flags); +void intel_ggtt_unbind_vma(struct i915_address_space *vm, + struct i915_vma_resource *vma_res); + int i915_ggtt_probe_hw(struct drm_i915_private *i915); int i915_ggtt_init_hw(struct drm_i915_private *i915); int i915_ggtt_enable_hw(struct drm_i915_private *i915); @@ -637,6 +627,7 @@ release_pd_entry(struct i915_page_directory * const pd, struct i915_page_table * const pt, const struct drm_i915_gem_object * const scratch); void gen6_ggtt_invalidate(struct i915_ggtt *ggtt); +void gen8_ggtt_invalidate(struct i915_ggtt *ggtt); void ppgtt_bind_vma(struct i915_address_space *vm, struct i915_vm_pt_stash *stash, diff --git a/drivers/gpu/drm/i915/gt/intel_hwconfig.h b/drivers/gpu/drm/i915/gt/intel_hwconfig.h new file mode 100644 index 000000000000..322290780b67 --- /dev/null +++ b/drivers/gpu/drm/i915/gt/intel_hwconfig.h @@ -0,0 +1,21 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright © 2022 Intel Corporation + */ + +#ifndef _INTEL_HWCONFIG_H_ +#define _INTEL_HWCONFIG_H_ + +#include <linux/types.h> + +struct intel_gt; + +struct intel_hwconfig { + u32 size; + void *ptr; +}; + +int intel_gt_init_hwconfig(struct intel_gt *gt); +void intel_gt_fini_hwconfig(struct intel_gt *gt); + +#endif /* _INTEL_HWCONFIG_H_ */ diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c b/drivers/gpu/drm/i915/gt/intel_lrc.c index 07bef7128fdb..3f83a9038e13 100644 --- a/drivers/gpu/drm/i915/gt/intel_lrc.c +++ b/drivers/gpu/drm/i915/gt/intel_lrc.c @@ -778,7 +778,7 @@ static void init_common_regs(u32 * const regs, CTX_CTRL_RS_CTX_ENABLE); regs[CTX_CONTEXT_CONTROL] = ctl; - regs[CTX_TIMESTAMP] = ce->runtime.last; + regs[CTX_TIMESTAMP] = ce->stats.runtime.last; } static void init_wa_bb_regs(u32 * const regs, @@ -1208,6 +1208,10 @@ gen12_emit_indirect_ctx_rcs(const struct intel_context *ce, u32 *cs) IS_DG2_G11(ce->engine->i915)) cs = gen8_emit_pipe_control(cs, PIPE_CONTROL_INSTRUCTION_CACHE_INVALIDATE, 0); + /* hsdes: 1809175790 */ + if (!HAS_FLAT_CCS(ce->engine->i915)) + cs = gen12_emit_aux_table_inv(cs, GEN12_GFX_CCS_AUX_NV); + return cs; } @@ -1225,6 +1229,14 @@ gen12_emit_indirect_ctx_xcs(const struct intel_context *ce, u32 *cs) PIPE_CONTROL_INSTRUCTION_CACHE_INVALIDATE, 0); + /* hsdes: 1809175790 */ + if (!HAS_FLAT_CCS(ce->engine->i915)) { + if (ce->engine->class == VIDEO_DECODE_CLASS) + cs = gen12_emit_aux_table_inv(cs, GEN12_VD0_AUX_NV); + else if (ce->engine->class == VIDEO_ENHANCEMENT_CLASS) + cs = gen12_emit_aux_table_inv(cs, GEN12_VE0_AUX_NV); + } + return cs; } @@ -1722,11 +1734,12 @@ err: } } -static void st_update_runtime_underflow(struct intel_context *ce, s32 dt) +static void st_runtime_underflow(struct intel_context_stats *stats, s32 dt) { #if IS_ENABLED(CONFIG_DRM_I915_SELFTEST) - ce->runtime.num_underflow++; - ce->runtime.max_underflow = max_t(u32, ce->runtime.max_underflow, -dt); + stats->runtime.num_underflow++; + stats->runtime.max_underflow = + max_t(u32, stats->runtime.max_underflow, -dt); #endif } @@ -1743,25 +1756,25 @@ static u32 lrc_get_runtime(const struct intel_context *ce) void lrc_update_runtime(struct intel_context *ce) { + struct intel_context_stats *stats = &ce->stats; u32 old; s32 dt; - if (intel_context_is_barrier(ce)) + old = stats->runtime.last; + stats->runtime.last = lrc_get_runtime(ce); + dt = stats->runtime.last - old; + if (!dt) return; - old = ce->runtime.last; - ce->runtime.last = lrc_get_runtime(ce); - dt = ce->runtime.last - old; - if (unlikely(dt < 0)) { CE_TRACE(ce, "runtime underflow: last=%u, new=%u, delta=%d\n", - old, ce->runtime.last, dt); - st_update_runtime_underflow(ce, dt); + old, stats->runtime.last, dt); + st_runtime_underflow(stats, dt); return; } - ewma_runtime_add(&ce->runtime.avg, dt); - ce->runtime.total += dt; + ewma_runtime_add(&stats->runtime.avg, dt); + stats->runtime.total += dt; } #if IS_ENABLED(CONFIG_DRM_I915_SELFTEST) diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.h b/drivers/gpu/drm/i915/gt/intel_lrc.h index 6e4f9f58fca5..7371bb5c8129 100644 --- a/drivers/gpu/drm/i915/gt/intel_lrc.h +++ b/drivers/gpu/drm/i915/gt/intel_lrc.h @@ -11,9 +11,10 @@ #include <linux/bitfield.h> #include <linux/types.h> +#include "intel_context.h" + struct drm_i915_gem_object; struct i915_gem_ww_ctx; -struct intel_context; struct intel_engine_cs; struct intel_ring; struct kref; @@ -120,4 +121,28 @@ static inline u32 lrc_desc_priority(int prio) return GEN12_CTX_PRIORITY_NORMAL; } +static inline void lrc_runtime_start(struct intel_context *ce) +{ + struct intel_context_stats *stats = &ce->stats; + + if (intel_context_is_barrier(ce)) + return; + + if (stats->active) + return; + + WRITE_ONCE(stats->active, intel_context_clock()); +} + +static inline void lrc_runtime_stop(struct intel_context *ce) +{ + struct intel_context_stats *stats = &ce->stats; + + if (!stats->active) + return; + + lrc_update_runtime(ce); + WRITE_ONCE(stats->active, 0); +} + #endif /* __INTEL_LRC_H__ */ diff --git a/drivers/gpu/drm/i915/gt/intel_migrate.c b/drivers/gpu/drm/i915/gt/intel_migrate.c index 20444d6ceb3c..9d552f30b627 100644 --- a/drivers/gpu/drm/i915/gt/intel_migrate.c +++ b/drivers/gpu/drm/i915/gt/intel_migrate.c @@ -17,6 +17,8 @@ struct insert_pte_data { #define CHUNK_SZ SZ_8M /* ~1ms at 8GiB/s preemption delay */ +#define GET_CCS_BYTES(i915, size) (HAS_FLAT_CCS(i915) ? \ + DIV_ROUND_UP(size, NUM_BYTES_PER_CCS_BYTE) : 0) static bool engine_supports_migration(struct intel_engine_cs *engine) { if (!engine) @@ -467,6 +469,123 @@ static bool wa_1209644611_applies(int ver, u32 size) return height % 4 == 3 && height <= 8; } +/** + * DOC: Flat-CCS - Memory compression for Local memory + * + * On Xe-HP and later devices, we use dedicated compression control state (CCS) + * stored in local memory for each surface, to support the 3D and media + * compression formats. + * + * The memory required for the CCS of the entire local memory is 1/256 of the + * local memory size. So before the kernel boot, the required memory is reserved + * for the CCS data and a secure register will be programmed with the CCS base + * address. + * + * Flat CCS data needs to be cleared when a lmem object is allocated. + * And CCS data can be copied in and out of CCS region through + * XY_CTRL_SURF_COPY_BLT. CPU can't access the CCS data directly. + * + * When we exhaust the lmem, if the object's placements support smem, then we can + * directly decompress the compressed lmem object into smem and start using it + * from smem itself. + * + * But when we need to swapout the compressed lmem object into a smem region + * though objects' placement doesn't support smem, then we copy the lmem content + * as it is into smem region along with ccs data (using XY_CTRL_SURF_COPY_BLT). + * When the object is referred, lmem content will be swaped in along with + * restoration of the CCS data (using XY_CTRL_SURF_COPY_BLT) at corresponding + * location. + */ + +static inline u32 *i915_flush_dw(u32 *cmd, u32 flags) +{ + *cmd++ = MI_FLUSH_DW | flags; + *cmd++ = 0; + *cmd++ = 0; + + return cmd; +} + +static u32 calc_ctrl_surf_instr_size(struct drm_i915_private *i915, int size) +{ + u32 num_cmds, num_blks, total_size; + + if (!GET_CCS_BYTES(i915, size)) + return 0; + + /* + * XY_CTRL_SURF_COPY_BLT transfers CCS in 256 byte + * blocks. one XY_CTRL_SURF_COPY_BLT command can + * transfer upto 1024 blocks. + */ + num_blks = DIV_ROUND_UP(GET_CCS_BYTES(i915, size), + NUM_CCS_BYTES_PER_BLOCK); + num_cmds = DIV_ROUND_UP(num_blks, NUM_CCS_BLKS_PER_XFER); + total_size = XY_CTRL_SURF_INSTR_SIZE * num_cmds; + + /* + * Adding a flush before and after XY_CTRL_SURF_COPY_BLT + */ + total_size += 2 * MI_FLUSH_DW_SIZE; + + return total_size; +} + +static int emit_copy_ccs(struct i915_request *rq, + u32 dst_offset, u8 dst_access, + u32 src_offset, u8 src_access, int size) +{ + struct drm_i915_private *i915 = rq->engine->i915; + int mocs = rq->engine->gt->mocs.uc_index << 1; + u32 num_ccs_blks, ccs_ring_size; + u32 *cs; + + ccs_ring_size = calc_ctrl_surf_instr_size(i915, size); + WARN_ON(!ccs_ring_size); + + cs = intel_ring_begin(rq, round_up(ccs_ring_size, 2)); + if (IS_ERR(cs)) + return PTR_ERR(cs); + + num_ccs_blks = DIV_ROUND_UP(GET_CCS_BYTES(i915, size), + NUM_CCS_BYTES_PER_BLOCK); + GEM_BUG_ON(num_ccs_blks > NUM_CCS_BLKS_PER_XFER); + cs = i915_flush_dw(cs, MI_FLUSH_DW_LLC | MI_FLUSH_DW_CCS); + + /* + * The XY_CTRL_SURF_COPY_BLT instruction is used to copy the CCS + * data in and out of the CCS region. + * + * We can copy at most 1024 blocks of 256 bytes using one + * XY_CTRL_SURF_COPY_BLT instruction. + * + * In case we need to copy more than 1024 blocks, we need to add + * another instruction to the same batch buffer. + * + * 1024 blocks of 256 bytes of CCS represent a total 256KB of CCS. + * + * 256 KB of CCS represents 256 * 256 KB = 64 MB of LMEM. + */ + *cs++ = XY_CTRL_SURF_COPY_BLT | + src_access << SRC_ACCESS_TYPE_SHIFT | + dst_access << DST_ACCESS_TYPE_SHIFT | + ((num_ccs_blks - 1) & CCS_SIZE_MASK) << CCS_SIZE_SHIFT; + *cs++ = src_offset; + *cs++ = rq->engine->instance | + FIELD_PREP(XY_CTRL_SURF_MOCS_MASK, mocs); + *cs++ = dst_offset; + *cs++ = rq->engine->instance | + FIELD_PREP(XY_CTRL_SURF_MOCS_MASK, mocs); + + cs = i915_flush_dw(cs, MI_FLUSH_DW_LLC | MI_FLUSH_DW_CCS); + if (ccs_ring_size & 1) + *cs++ = MI_NOOP; + + intel_ring_advance(rq, cs); + + return 0; +} + static int emit_copy(struct i915_request *rq, u32 dst_offset, u32 src_offset, int size) { @@ -514,6 +633,65 @@ static int emit_copy(struct i915_request *rq, return 0; } +static int scatter_list_length(struct scatterlist *sg) +{ + int len = 0; + + while (sg && sg_dma_len(sg)) { + len += sg_dma_len(sg); + sg = sg_next(sg); + }; + + return len; +} + +static void +calculate_chunk_sz(struct drm_i915_private *i915, bool src_is_lmem, + int *src_sz, int *ccs_sz, u32 bytes_to_cpy, + u32 ccs_bytes_to_cpy) +{ + if (ccs_bytes_to_cpy) { + /* + * We can only copy the ccs data corresponding to + * the CHUNK_SZ of lmem which is + * GET_CCS_BYTES(i915, CHUNK_SZ)) + */ + *ccs_sz = min_t(int, ccs_bytes_to_cpy, GET_CCS_BYTES(i915, CHUNK_SZ)); + + if (!src_is_lmem) + /* + * When CHUNK_SZ is passed all the pages upto CHUNK_SZ + * will be taken for the blt. in Flat-ccs supported + * platform Smem obj will have more pages than required + * for main meory hence limit it to the required size + * for main memory + */ + *src_sz = min_t(int, bytes_to_cpy, CHUNK_SZ); + } else { /* ccs handling is not required */ + *src_sz = CHUNK_SZ; + } +} + +static void get_ccs_sg_sgt(struct sgt_dma *it, u32 bytes_to_cpy) +{ + u32 len; + + do { + GEM_BUG_ON(!it->sg || !sg_dma_len(it->sg)); + len = it->max - it->dma; + if (len > bytes_to_cpy) { + it->dma += bytes_to_cpy; + break; + } + + bytes_to_cpy -= len; + + it->sg = __sg_next(it->sg); + it->dma = sg_dma_address(it->sg); + it->max = it->dma + sg_dma_len(it->sg); + } while (bytes_to_cpy); +} + int intel_context_migrate_copy(struct intel_context *ce, const struct i915_deps *deps, @@ -525,17 +703,67 @@ intel_context_migrate_copy(struct intel_context *ce, bool dst_is_lmem, struct i915_request **out) { - struct sgt_dma it_src = sg_sgt(src), it_dst = sg_sgt(dst); + struct sgt_dma it_src = sg_sgt(src), it_dst = sg_sgt(dst), it_ccs; + struct drm_i915_private *i915 = ce->engine->i915; + u32 ccs_bytes_to_cpy = 0, bytes_to_cpy; + enum i915_cache_level ccs_cache_level; + int src_sz, dst_sz, ccs_sz; + u32 src_offset, dst_offset; + u8 src_access, dst_access; struct i915_request *rq; + bool ccs_is_src; int err; GEM_BUG_ON(ce->vm != ce->engine->gt->migrate.context->vm); + GEM_BUG_ON(IS_DGFX(ce->engine->i915) && (!src_is_lmem && !dst_is_lmem)); *out = NULL; GEM_BUG_ON(ce->ring->size < SZ_64K); + src_sz = scatter_list_length(src); + bytes_to_cpy = src_sz; + + if (HAS_FLAT_CCS(i915) && src_is_lmem ^ dst_is_lmem) { + src_access = !src_is_lmem && dst_is_lmem; + dst_access = !src_access; + + dst_sz = scatter_list_length(dst); + if (src_is_lmem) { + it_ccs = it_dst; + ccs_cache_level = dst_cache_level; + ccs_is_src = false; + } else if (dst_is_lmem) { + bytes_to_cpy = dst_sz; + it_ccs = it_src; + ccs_cache_level = src_cache_level; + ccs_is_src = true; + } + + /* + * When there is a eviction of ccs needed smem will have the + * extra pages for the ccs data + * + * TO-DO: Want to move the size mismatch check to a WARN_ON, + * but still we have some requests of smem->lmem with same size. + * Need to fix it. + */ + ccs_bytes_to_cpy = src_sz != dst_sz ? GET_CCS_BYTES(i915, bytes_to_cpy) : 0; + if (ccs_bytes_to_cpy) + get_ccs_sg_sgt(&it_ccs, bytes_to_cpy); + } + + src_offset = 0; + dst_offset = CHUNK_SZ; + if (HAS_64K_PAGES(ce->engine->i915)) { + src_offset = 0; + dst_offset = 0; + if (src_is_lmem) + src_offset = CHUNK_SZ; + if (dst_is_lmem) + dst_offset = 2 * CHUNK_SZ; + } + do { - u32 src_offset, dst_offset; int len; rq = i915_request_create(ce); @@ -563,22 +791,16 @@ intel_context_migrate_copy(struct intel_context *ce, if (err) goto out_rq; - src_offset = 0; - dst_offset = CHUNK_SZ; - if (HAS_64K_PAGES(ce->engine->i915)) { - GEM_BUG_ON(!src_is_lmem && !dst_is_lmem); - - src_offset = 0; - dst_offset = 0; - if (src_is_lmem) - src_offset = CHUNK_SZ; - if (dst_is_lmem) - dst_offset = 2 * CHUNK_SZ; - } + calculate_chunk_sz(i915, src_is_lmem, &src_sz, &ccs_sz, + bytes_to_cpy, ccs_bytes_to_cpy); len = emit_pte(rq, &it_src, src_cache_level, src_is_lmem, - src_offset, CHUNK_SZ); - if (len <= 0) { + src_offset, src_sz); + if (!len) { + err = -EINVAL; + goto out_rq; + } + if (len < 0) { err = len; goto out_rq; } @@ -596,7 +818,46 @@ intel_context_migrate_copy(struct intel_context *ce, if (err) goto out_rq; - err = emit_copy(rq, dst_offset, src_offset, len); + err = emit_copy(rq, dst_offset, src_offset, len); + if (err) + goto out_rq; + + bytes_to_cpy -= len; + + if (ccs_bytes_to_cpy) { + err = rq->engine->emit_flush(rq, EMIT_INVALIDATE); + if (err) + goto out_rq; + + err = emit_pte(rq, &it_ccs, ccs_cache_level, false, + ccs_is_src ? src_offset : dst_offset, + ccs_sz); + + err = rq->engine->emit_flush(rq, EMIT_INVALIDATE); + if (err) + goto out_rq; + + /* + * Using max of src_sz and dst_sz, as we need to + * pass the lmem size corresponding to the ccs + * blocks we need to handle. + */ + ccs_sz = max_t(int, ccs_is_src ? ccs_sz : src_sz, + ccs_is_src ? dst_sz : ccs_sz); + + err = emit_copy_ccs(rq, dst_offset, dst_access, + src_offset, src_access, ccs_sz); + if (err) + goto out_rq; + + err = rq->engine->emit_flush(rq, EMIT_INVALIDATE); + if (err) + goto out_rq; + + /* Converting back to ccs bytes */ + ccs_sz = GET_CCS_BYTES(rq->engine->i915, ccs_sz); + ccs_bytes_to_cpy -= ccs_sz; + } /* Arbitration is re-enabled between requests. */ out_rq: @@ -604,9 +865,26 @@ out_rq: i915_request_put(*out); *out = i915_request_get(rq); i915_request_add(rq); - if (err || !it_src.sg || !sg_dma_len(it_src.sg)) + + if (err) break; + if (!bytes_to_cpy && !ccs_bytes_to_cpy) { + if (src_is_lmem) + WARN_ON(it_src.sg && sg_dma_len(it_src.sg)); + else + WARN_ON(it_dst.sg && sg_dma_len(it_dst.sg)); + break; + } + + if (WARN_ON(!it_src.sg || !sg_dma_len(it_src.sg) || + !it_dst.sg || !sg_dma_len(it_dst.sg) || + (ccs_bytes_to_cpy && (!it_ccs.sg || + !sg_dma_len(it_ccs.sg))))) { + err = -EINVAL; + break; + } + cond_resched(); } while (1); @@ -614,35 +892,65 @@ out_ce: return err; } -static int emit_clear(struct i915_request *rq, u64 offset, int size, u32 value) +static int emit_clear(struct i915_request *rq, u32 offset, int size, + u32 value, bool is_lmem) { - const int ver = GRAPHICS_VER(rq->engine->i915); + struct drm_i915_private *i915 = rq->engine->i915; + int mocs = rq->engine->gt->mocs.uc_index << 1; + const int ver = GRAPHICS_VER(i915); + int ring_sz; u32 *cs; GEM_BUG_ON(size >> PAGE_SHIFT > S16_MAX); - offset += (u64)rq->engine->instance << 32; + if (HAS_FLAT_CCS(i915) && ver >= 12) + ring_sz = XY_FAST_COLOR_BLT_DW; + else if (ver >= 8) + ring_sz = 8; + else + ring_sz = 6; - cs = intel_ring_begin(rq, ver >= 8 ? 8 : 6); + cs = intel_ring_begin(rq, ring_sz); if (IS_ERR(cs)) return PTR_ERR(cs); - if (ver >= 8) { + if (HAS_FLAT_CCS(i915) && ver >= 12) { + *cs++ = XY_FAST_COLOR_BLT_CMD | XY_FAST_COLOR_BLT_DEPTH_32 | + (XY_FAST_COLOR_BLT_DW - 2); + *cs++ = FIELD_PREP(XY_FAST_COLOR_BLT_MOCS_MASK, mocs) | + (PAGE_SIZE - 1); + *cs++ = 0; + *cs++ = size >> PAGE_SHIFT << 16 | PAGE_SIZE / 4; + *cs++ = offset; + *cs++ = rq->engine->instance; + *cs++ = !is_lmem << XY_FAST_COLOR_BLT_MEM_TYPE_SHIFT; + /* BG7 */ + *cs++ = value; + *cs++ = 0; + *cs++ = 0; + *cs++ = 0; + /* BG11 */ + *cs++ = 0; + *cs++ = 0; + /* BG13 */ + *cs++ = 0; + *cs++ = 0; + *cs++ = 0; + } else if (ver >= 8) { *cs++ = XY_COLOR_BLT_CMD | BLT_WRITE_RGBA | (7 - 2); *cs++ = BLT_DEPTH_32 | BLT_ROP_COLOR_COPY | PAGE_SIZE; *cs++ = 0; *cs++ = size >> PAGE_SHIFT << 16 | PAGE_SIZE / 4; - *cs++ = lower_32_bits(offset); - *cs++ = upper_32_bits(offset); + *cs++ = offset; + *cs++ = rq->engine->instance; *cs++ = value; *cs++ = MI_NOOP; } else { - GEM_BUG_ON(upper_32_bits(offset)); *cs++ = XY_COLOR_BLT_CMD | BLT_WRITE_RGBA | (6 - 2); *cs++ = BLT_DEPTH_32 | BLT_ROP_COLOR_COPY | PAGE_SIZE; *cs++ = 0; *cs++ = size >> PAGE_SHIFT << 16 | PAGE_SIZE / 4; - *cs++ = lower_32_bits(offset); + *cs++ = offset; *cs++ = value; } @@ -659,8 +967,10 @@ intel_context_migrate_clear(struct intel_context *ce, u32 value, struct i915_request **out) { + struct drm_i915_private *i915 = ce->engine->i915; struct sgt_dma it = sg_sgt(sg); struct i915_request *rq; + u32 offset; int err; GEM_BUG_ON(ce->vm != ce->engine->gt->migrate.context->vm); @@ -668,8 +978,11 @@ intel_context_migrate_clear(struct intel_context *ce, GEM_BUG_ON(ce->ring->size < SZ_64K); + offset = 0; + if (HAS_64K_PAGES(i915) && is_lmem) + offset = CHUNK_SZ; + do { - u32 offset; int len; rq = i915_request_create(ce); @@ -697,10 +1010,6 @@ intel_context_migrate_clear(struct intel_context *ce, if (err) goto out_rq; - offset = 0; - if (HAS_64K_PAGES(ce->engine->i915) && is_lmem) - offset = CHUNK_SZ; - len = emit_pte(rq, &it, cache_level, is_lmem, offset, CHUNK_SZ); if (len <= 0) { err = len; @@ -711,7 +1020,22 @@ intel_context_migrate_clear(struct intel_context *ce, if (err) goto out_rq; - err = emit_clear(rq, offset, len, value); + err = emit_clear(rq, offset, len, value, is_lmem); + if (err) + goto out_rq; + + if (HAS_FLAT_CCS(i915) && is_lmem && !value) { + /* + * copy the content of memory into corresponding + * ccs surface + */ + err = emit_copy_ccs(rq, offset, INDIRECT_ACCESS, offset, + DIRECT_ACCESS, len); + if (err) + goto out_rq; + } + + err = rq->engine->emit_flush(rq, EMIT_INVALIDATE); /* Arbitration is re-enabled between requests. */ out_rq: diff --git a/drivers/gpu/drm/i915/gt/intel_ppgtt.c b/drivers/gpu/drm/i915/gt/intel_ppgtt.c index d91e2beb7517..d8b94d638559 100644 --- a/drivers/gpu/drm/i915/gt/intel_ppgtt.c +++ b/drivers/gpu/drm/i915/gt/intel_ppgtt.c @@ -91,7 +91,7 @@ write_dma_entry(struct drm_i915_gem_object * const pdma, u64 * const vaddr = __px_vaddr(pdma); vaddr[idx] = encoded_entry; - clflush_cache_range(&vaddr[idx], sizeof(u64)); + drm_clflush_virt_range(&vaddr[idx], sizeof(u64)); } void diff --git a/drivers/gpu/drm/i915/gt/intel_rc6.c b/drivers/gpu/drm/i915/gt/intel_rc6.c index 63db136cbc27..b4770690e794 100644 --- a/drivers/gpu/drm/i915/gt/intel_rc6.c +++ b/drivers/gpu/drm/i915/gt/intel_rc6.c @@ -6,6 +6,7 @@ #include <linux/pm_runtime.h> #include <linux/string_helpers.h> +#include "gem/i915_gem_region.h" #include "i915_drv.h" #include "i915_reg.h" #include "i915_vgpu.h" @@ -325,9 +326,10 @@ static int vlv_rc6_init(struct intel_rc6 *rc6) resource_size_t pcbr_offset; pcbr_offset = (pcbr & ~4095) - i915->dsm.start; - pctx = i915_gem_object_create_stolen_for_preallocated(i915, - pcbr_offset, - pctx_size); + pctx = i915_gem_object_create_region_at(i915->mm.stolen_region, + pcbr_offset, + pctx_size, + 0); if (IS_ERR(pctx)) return PTR_ERR(pctx); diff --git a/drivers/gpu/drm/i915/gt/intel_region_lmem.c b/drivers/gpu/drm/i915/gt/intel_region_lmem.c index 6cecfdae07ad..f5111c0a0060 100644 --- a/drivers/gpu/drm/i915/gt/intel_region_lmem.c +++ b/drivers/gpu/drm/i915/gt/intel_region_lmem.c @@ -93,6 +93,7 @@ static struct intel_memory_region *setup_lmem(struct intel_gt *gt) struct intel_memory_region *mem; resource_size_t min_page_size; resource_size_t io_start; + resource_size_t io_size; resource_size_t lmem_size; int err; @@ -122,9 +123,14 @@ static struct intel_memory_region *setup_lmem(struct intel_gt *gt) lmem_size = intel_uncore_read64(&i915->uncore, GEN12_GSMBASE); } + if (i915->params.lmem_size > 0) { + lmem_size = min_t(resource_size_t, lmem_size, + mul_u32_u32(i915->params.lmem_size, SZ_1M)); + } io_start = pci_resource_start(pdev, 2); - if (GEM_WARN_ON(lmem_size > pci_resource_len(pdev, 2))) + io_size = min(pci_resource_len(pdev, 2), lmem_size); + if (!io_size) return ERR_PTR(-ENODEV); min_page_size = HAS_64K_PAGES(i915) ? I915_GTT_PAGE_SIZE_64K : @@ -134,7 +140,7 @@ static struct intel_memory_region *setup_lmem(struct intel_gt *gt) lmem_size, min_page_size, io_start, - lmem_size, + io_size, INTEL_MEMORY_LOCAL, 0, &intel_region_lmem_ops); diff --git a/drivers/gpu/drm/i915/gt/intel_reset.c b/drivers/gpu/drm/i915/gt/intel_reset.c index a6ae213c7d89..5422a3b84bd4 100644 --- a/drivers/gpu/drm/i915/gt/intel_reset.c +++ b/drivers/gpu/drm/i915/gt/intel_reset.c @@ -772,14 +772,15 @@ static intel_engine_mask_t reset_prepare(struct intel_gt *gt) intel_engine_mask_t awake = 0; enum intel_engine_id id; + /* For GuC mode, ensure submission is disabled before stopping ring */ + intel_uc_reset_prepare(>->uc); + for_each_engine(engine, gt, id) { if (intel_engine_pm_get_if_awake(engine)) awake |= engine->mask; reset_prepare_engine(engine); } - intel_uc_reset_prepare(>->uc); - return awake; } @@ -1319,7 +1320,7 @@ void intel_gt_handle_error(struct intel_gt *gt, engine_mask &= gt->info.engine_mask; if (flags & I915_ERROR_CAPTURE) { - i915_capture_error_state(gt, engine_mask); + i915_capture_error_state(gt, engine_mask, CORE_DUMP_FLAG_NONE); intel_gt_clear_error_registers(gt, engine_mask); } diff --git a/drivers/gpu/drm/i915/gt/intel_ring_submission.c b/drivers/gpu/drm/i915/gt/intel_ring_submission.c index 6d7ec3bf1f32..5423bfd301ad 100644 --- a/drivers/gpu/drm/i915/gt/intel_ring_submission.c +++ b/drivers/gpu/drm/i915/gt/intel_ring_submission.c @@ -767,7 +767,7 @@ static int mi_set_context(struct i915_request *rq, if (GRAPHICS_VER(i915) == 7) { if (num_engines) { struct intel_engine_cs *signaller; - i915_reg_t last_reg = {}; /* keep gcc quiet */ + i915_reg_t last_reg = INVALID_MMIO_REG; /* keep gcc quiet */ *cs++ = MI_LOAD_REGISTER_IMM(num_engines); for_each_engine(signaller, engine->gt, id) { diff --git a/drivers/gpu/drm/i915/gt/intel_rps.c b/drivers/gpu/drm/i915/gt/intel_rps.c index a9c13b1a3018..3476a11f294c 100644 --- a/drivers/gpu/drm/i915/gt/intel_rps.c +++ b/drivers/gpu/drm/i915/gt/intel_rps.c @@ -1070,24 +1070,67 @@ int intel_rps_set(struct intel_rps *rps, u8 val) return 0; } -static void gen6_rps_init(struct intel_rps *rps) +static u32 intel_rps_read_state_cap(struct intel_rps *rps) { struct drm_i915_private *i915 = rps_to_i915(rps); - u32 rp_state_cap = intel_rps_read_state_cap(rps); + struct intel_uncore *uncore = rps_to_uncore(rps); - /* All of these values are in units of 50MHz */ + if (IS_XEHPSDV(i915)) + return intel_uncore_read(uncore, XEHPSDV_RP_STATE_CAP); + else if (IS_GEN9_LP(i915)) + return intel_uncore_read(uncore, BXT_RP_STATE_CAP); + else + return intel_uncore_read(uncore, GEN6_RP_STATE_CAP); +} + +/** + * gen6_rps_get_freq_caps - Get freq caps exposed by HW + * @rps: the intel_rps structure + * @caps: returned freq caps + * + * Returned "caps" frequencies should be converted to MHz using + * intel_gpu_freq() + */ +void gen6_rps_get_freq_caps(struct intel_rps *rps, struct intel_rps_freq_caps *caps) +{ + struct drm_i915_private *i915 = rps_to_i915(rps); + u32 rp_state_cap; + + rp_state_cap = intel_rps_read_state_cap(rps); /* static values from HW: RP0 > RP1 > RPn (min_freq) */ if (IS_GEN9_LP(i915)) { - rps->rp0_freq = (rp_state_cap >> 16) & 0xff; - rps->rp1_freq = (rp_state_cap >> 8) & 0xff; - rps->min_freq = (rp_state_cap >> 0) & 0xff; + caps->rp0_freq = (rp_state_cap >> 16) & 0xff; + caps->rp1_freq = (rp_state_cap >> 8) & 0xff; + caps->min_freq = (rp_state_cap >> 0) & 0xff; } else { - rps->rp0_freq = (rp_state_cap >> 0) & 0xff; - rps->rp1_freq = (rp_state_cap >> 8) & 0xff; - rps->min_freq = (rp_state_cap >> 16) & 0xff; + caps->rp0_freq = (rp_state_cap >> 0) & 0xff; + caps->rp1_freq = (rp_state_cap >> 8) & 0xff; + caps->min_freq = (rp_state_cap >> 16) & 0xff; } + if (IS_GEN9_BC(i915) || GRAPHICS_VER(i915) >= 11) { + /* + * In this case rp_state_cap register reports frequencies in + * units of 50 MHz. Convert these to the actual "hw unit", i.e. + * units of 16.67 MHz + */ + caps->rp0_freq *= GEN9_FREQ_SCALER; + caps->rp1_freq *= GEN9_FREQ_SCALER; + caps->min_freq *= GEN9_FREQ_SCALER; + } +} + +static void gen6_rps_init(struct intel_rps *rps) +{ + struct drm_i915_private *i915 = rps_to_i915(rps); + struct intel_rps_freq_caps caps; + + gen6_rps_get_freq_caps(rps, &caps); + rps->rp0_freq = caps.rp0_freq; + rps->rp1_freq = caps.rp1_freq; + rps->min_freq = caps.min_freq; + /* hw_max = RP0 until we check for overclocking */ rps->max_freq = rps->rp0_freq; @@ -1095,26 +1138,18 @@ static void gen6_rps_init(struct intel_rps *rps) if (IS_HASWELL(i915) || IS_BROADWELL(i915) || IS_GEN9_BC(i915) || GRAPHICS_VER(i915) >= 11) { u32 ddcc_status = 0; + u32 mult = 1; + if (IS_GEN9_BC(i915) || GRAPHICS_VER(i915) >= 11) + mult = GEN9_FREQ_SCALER; if (snb_pcode_read(i915, HSW_PCODE_DYNAMIC_DUTY_CYCLE_CONTROL, &ddcc_status, NULL) == 0) rps->efficient_freq = - clamp_t(u8, - (ddcc_status >> 8) & 0xff, + clamp_t(u32, + ((ddcc_status >> 8) & 0xff) * mult, rps->min_freq, rps->max_freq); } - - if (IS_GEN9_BC(i915) || GRAPHICS_VER(i915) >= 11) { - /* Store the frequency values in 16.66 MHZ units, which is - * the natural hardware unit for SKL - */ - rps->rp0_freq *= GEN9_FREQ_SCALER; - rps->rp1_freq *= GEN9_FREQ_SCALER; - rps->min_freq *= GEN9_FREQ_SCALER; - rps->max_freq *= GEN9_FREQ_SCALER; - rps->efficient_freq *= GEN9_FREQ_SCALER; - } } static bool rps_reset(struct intel_rps *rps) @@ -2219,19 +2254,6 @@ int intel_rps_set_min_frequency(struct intel_rps *rps, u32 val) return set_min_freq(rps, val); } -u32 intel_rps_read_state_cap(struct intel_rps *rps) -{ - struct drm_i915_private *i915 = rps_to_i915(rps); - struct intel_uncore *uncore = rps_to_uncore(rps); - - if (IS_XEHPSDV(i915)) - return intel_uncore_read(uncore, XEHPSDV_RP_STATE_CAP); - else if (IS_GEN9_LP(i915)) - return intel_uncore_read(uncore, BXT_RP_STATE_CAP); - else - return intel_uncore_read(uncore, GEN6_RP_STATE_CAP); -} - static void intel_rps_set_manual(struct intel_rps *rps, bool enable) { struct intel_uncore *uncore = rps_to_uncore(rps); @@ -2244,18 +2266,18 @@ static void intel_rps_set_manual(struct intel_rps *rps, bool enable) void intel_rps_raise_unslice(struct intel_rps *rps) { struct intel_uncore *uncore = rps_to_uncore(rps); - u32 rp0_unslice_req; mutex_lock(&rps->lock); if (rps_uses_slpc(rps)) { /* RP limits have not been initialized yet for SLPC path */ - rp0_unslice_req = ((intel_rps_read_state_cap(rps) >> 0) - & 0xff) * GEN9_FREQ_SCALER; + struct intel_rps_freq_caps caps; + + gen6_rps_get_freq_caps(rps, &caps); intel_rps_set_manual(rps, true); intel_uncore_write(uncore, GEN6_RPNSWREQ, - ((rp0_unslice_req << + ((caps.rp0_freq << GEN9_SW_REQ_UNSLICE_RATIO_SHIFT) | GEN9_IGNORE_SLICE_RATIO)); intel_rps_set_manual(rps, false); @@ -2269,18 +2291,18 @@ void intel_rps_raise_unslice(struct intel_rps *rps) void intel_rps_lower_unslice(struct intel_rps *rps) { struct intel_uncore *uncore = rps_to_uncore(rps); - u32 rpn_unslice_req; mutex_lock(&rps->lock); if (rps_uses_slpc(rps)) { /* RP limits have not been initialized yet for SLPC path */ - rpn_unslice_req = ((intel_rps_read_state_cap(rps) >> 16) - & 0xff) * GEN9_FREQ_SCALER; + struct intel_rps_freq_caps caps; + + gen6_rps_get_freq_caps(rps, &caps); intel_rps_set_manual(rps, true); intel_uncore_write(uncore, GEN6_RPNSWREQ, - ((rpn_unslice_req << + ((caps.min_freq << GEN9_SW_REQ_UNSLICE_RATIO_SHIFT) | GEN9_IGNORE_SLICE_RATIO)); intel_rps_set_manual(rps, false); @@ -2291,6 +2313,24 @@ void intel_rps_lower_unslice(struct intel_rps *rps) mutex_unlock(&rps->lock); } +static u32 rps_read_mmio(struct intel_rps *rps, i915_reg_t reg32) +{ + struct intel_gt *gt = rps_to_gt(rps); + intel_wakeref_t wakeref; + u32 val; + + with_intel_runtime_pm(gt->uncore->rpm, wakeref) + val = intel_uncore_read(gt->uncore, reg32); + + return val; +} + +bool rps_read_mask_mmio(struct intel_rps *rps, + i915_reg_t reg32, u32 mask) +{ + return rps_read_mmio(rps, reg32) & mask; +} + /* External interface for intel_ips.ko */ static struct drm_i915_private __rcu *ips_mchdev; diff --git a/drivers/gpu/drm/i915/gt/intel_rps.h b/drivers/gpu/drm/i915/gt/intel_rps.h index c6d76a3d1331..1e8d56491308 100644 --- a/drivers/gpu/drm/i915/gt/intel_rps.h +++ b/drivers/gpu/drm/i915/gt/intel_rps.h @@ -7,6 +7,7 @@ #define INTEL_RPS_H #include "intel_rps_types.h" +#include "i915_reg_defs.h" struct i915_request; @@ -44,10 +45,13 @@ u32 intel_rps_get_rp1_frequency(struct intel_rps *rps); u32 intel_rps_get_rpn_frequency(struct intel_rps *rps); u32 intel_rps_read_punit_req(struct intel_rps *rps); u32 intel_rps_read_punit_req_frequency(struct intel_rps *rps); -u32 intel_rps_read_state_cap(struct intel_rps *rps); +void gen6_rps_get_freq_caps(struct intel_rps *rps, struct intel_rps_freq_caps *caps); void intel_rps_raise_unslice(struct intel_rps *rps); void intel_rps_lower_unslice(struct intel_rps *rps); +u32 intel_rps_read_throttle_reason(struct intel_rps *rps); +bool rps_read_mask_mmio(struct intel_rps *rps, i915_reg_t reg32, u32 mask); + void gen5_rps_irq_handler(struct intel_rps *rps); void gen6_rps_irq_handler(struct intel_rps *rps, u32 pm_iir); void gen11_rps_irq_handler(struct intel_rps *rps, u32 pm_iir); diff --git a/drivers/gpu/drm/i915/gt/intel_rps_types.h b/drivers/gpu/drm/i915/gt/intel_rps_types.h index 3941d8551f52..9173ec75f2b8 100644 --- a/drivers/gpu/drm/i915/gt/intel_rps_types.h +++ b/drivers/gpu/drm/i915/gt/intel_rps_types.h @@ -37,6 +37,21 @@ enum { INTEL_RPS_TIMER, }; +/** + * struct intel_rps_freq_caps - rps freq capabilities + * @rp0_freq: non-overclocked max frequency + * @rp1_freq: "less than" RP0 power/freqency + * @min_freq: aka RPn, minimum frequency + * + * Freq caps exposed by HW, values are in "hw units" and intel_gpu_freq() + * should be used to convert to MHz + */ +struct intel_rps_freq_caps { + u8 rp0_freq; + u8 rp1_freq; + u8 min_freq; +}; + struct intel_rps { struct mutex lock; /* protects enabling and the worker */ diff --git a/drivers/gpu/drm/i915/gt/intel_sseu.c b/drivers/gpu/drm/i915/gt/intel_sseu.c index 614915ffbd37..9881a6790574 100644 --- a/drivers/gpu/drm/i915/gt/intel_sseu.c +++ b/drivers/gpu/drm/i915/gt/intel_sseu.c @@ -10,6 +10,8 @@ #include "intel_gt_regs.h" #include "intel_sseu.h" +#include "linux/string_helpers.h" + void intel_sseu_set_info(struct sseu_dev_info *sseu, u8 max_slices, u8 max_subslices, u8 max_eus_per_subslice) { @@ -35,8 +37,8 @@ intel_sseu_subslice_total(const struct sseu_dev_info *sseu) } static u32 -_intel_sseu_get_subslices(const struct sseu_dev_info *sseu, - const u8 *subslice_mask, u8 slice) +sseu_get_subslices(const struct sseu_dev_info *sseu, + const u8 *subslice_mask, u8 slice) { int i, offset = slice * sseu->ss_stride; u32 mask = 0; @@ -51,12 +53,17 @@ _intel_sseu_get_subslices(const struct sseu_dev_info *sseu, u32 intel_sseu_get_subslices(const struct sseu_dev_info *sseu, u8 slice) { - return _intel_sseu_get_subslices(sseu, sseu->subslice_mask, slice); + return sseu_get_subslices(sseu, sseu->subslice_mask, slice); +} + +static u32 sseu_get_geometry_subslices(const struct sseu_dev_info *sseu) +{ + return sseu_get_subslices(sseu, sseu->geometry_subslice_mask, 0); } u32 intel_sseu_get_compute_subslices(const struct sseu_dev_info *sseu) { - return _intel_sseu_get_subslices(sseu, sseu->compute_subslice_mask, 0); + return sseu_get_subslices(sseu, sseu->compute_subslice_mask, 0); } void intel_sseu_set_subslices(struct sseu_dev_info *sseu, int slice, @@ -720,16 +727,11 @@ void intel_sseu_dump(const struct sseu_dev_info *sseu, struct drm_printer *p) str_yes_no(sseu->has_eu_pg)); } -void intel_sseu_print_topology(const struct sseu_dev_info *sseu, - struct drm_printer *p) +static void sseu_print_hsw_topology(const struct sseu_dev_info *sseu, + struct drm_printer *p) { int s, ss; - if (sseu->max_slices == 0) { - drm_printf(p, "Unavailable\n"); - return; - } - for (s = 0; s < sseu->max_slices; s++) { drm_printf(p, "slice%d: %u subslice(s) (0x%08x):\n", s, intel_sseu_subslices_per_slice(sseu, s), @@ -744,6 +746,36 @@ void intel_sseu_print_topology(const struct sseu_dev_info *sseu, } } +static void sseu_print_xehp_topology(const struct sseu_dev_info *sseu, + struct drm_printer *p) +{ + u32 g_dss_mask = sseu_get_geometry_subslices(sseu); + u32 c_dss_mask = intel_sseu_get_compute_subslices(sseu); + int dss; + + for (dss = 0; dss < sseu->max_subslices; dss++) { + u16 enabled_eus = sseu_get_eus(sseu, 0, dss); + + drm_printf(p, "DSS_%02d: G:%3s C:%3s, %2u EUs (0x%04hx)\n", dss, + str_yes_no(g_dss_mask & BIT(dss)), + str_yes_no(c_dss_mask & BIT(dss)), + hweight16(enabled_eus), enabled_eus); + } +} + +void intel_sseu_print_topology(struct drm_i915_private *i915, + const struct sseu_dev_info *sseu, + struct drm_printer *p) +{ + if (sseu->max_slices == 0) { + drm_printf(p, "Unavailable\n"); + } else if (GRAPHICS_VER_FULL(i915) >= IP_VER(12, 50)) { + sseu_print_xehp_topology(sseu, p); + } else { + sseu_print_hsw_topology(sseu, p); + } +} + u16 intel_slicemask_from_dssmask(u64 dss_mask, int dss_per_slice) { u16 slice_mask = 0; diff --git a/drivers/gpu/drm/i915/gt/intel_sseu.h b/drivers/gpu/drm/i915/gt/intel_sseu.h index 8a79cd8eaab4..5c078df4729c 100644 --- a/drivers/gpu/drm/i915/gt/intel_sseu.h +++ b/drivers/gpu/drm/i915/gt/intel_sseu.h @@ -15,26 +15,49 @@ struct drm_i915_private; struct intel_gt; struct drm_printer; -#define GEN_MAX_SLICES (3) /* SKL upper bound */ -#define GEN_MAX_SUBSLICES (32) /* XEHPSDV upper bound */ -#define GEN_SSEU_STRIDE(max_entries) DIV_ROUND_UP(max_entries, BITS_PER_BYTE) -#define GEN_MAX_SUBSLICE_STRIDE GEN_SSEU_STRIDE(GEN_MAX_SUBSLICES) -#define GEN_MAX_EUS (16) /* TGL upper bound */ -#define GEN_MAX_EU_STRIDE GEN_SSEU_STRIDE(GEN_MAX_EUS) +/* + * Maximum number of slices on older platforms. Slices no longer exist + * starting on Xe_HP ("gslices," "cslices," etc. are a different concept and + * are not expressed through fusing). + */ +#define GEN_MAX_HSW_SLICES 3 + +/* + * Maximum number of subslices that can exist within a HSW-style slice. This + * is only relevant to pre-Xe_HP platforms (Xe_HP and beyond use the + * GEN_MAX_DSS value below). + */ +#define GEN_MAX_SS_PER_HSW_SLICE 6 + +/* Maximum number of DSS on newer platforms (Xe_HP and beyond). */ +#define GEN_MAX_DSS 32 + +/* Maximum number of EUs that can exist within a subslice or DSS. */ +#define GEN_MAX_EUS_PER_SS 16 + +#define SSEU_MAX(a, b) ((a) > (b) ? (a) : (b)) + +/* The maximum number of bits needed to express each subslice/DSS independently */ +#define GEN_SS_MASK_SIZE SSEU_MAX(GEN_MAX_DSS, \ + GEN_MAX_HSW_SLICES * GEN_MAX_SS_PER_HSW_SLICE) + +#define GEN_SSEU_STRIDE(max_entries) DIV_ROUND_UP(max_entries, BITS_PER_BYTE) +#define GEN_MAX_SUBSLICE_STRIDE GEN_SSEU_STRIDE(GEN_SS_MASK_SIZE) +#define GEN_MAX_EU_STRIDE GEN_SSEU_STRIDE(GEN_MAX_EUS_PER_SS) #define GEN_DSS_PER_GSLICE 4 #define GEN_DSS_PER_CSLICE 8 #define GEN_DSS_PER_MSLICE 8 -#define GEN_MAX_GSLICES (GEN_MAX_SUBSLICES / GEN_DSS_PER_GSLICE) -#define GEN_MAX_CSLICES (GEN_MAX_SUBSLICES / GEN_DSS_PER_CSLICE) +#define GEN_MAX_GSLICES (GEN_MAX_DSS / GEN_DSS_PER_GSLICE) +#define GEN_MAX_CSLICES (GEN_MAX_DSS / GEN_DSS_PER_CSLICE) struct sseu_dev_info { u8 slice_mask; - u8 subslice_mask[GEN_MAX_SLICES * GEN_MAX_SUBSLICE_STRIDE]; - u8 geometry_subslice_mask[GEN_MAX_SLICES * GEN_MAX_SUBSLICE_STRIDE]; - u8 compute_subslice_mask[GEN_MAX_SLICES * GEN_MAX_SUBSLICE_STRIDE]; - u8 eu_mask[GEN_MAX_SLICES * GEN_MAX_SUBSLICES * GEN_MAX_EU_STRIDE]; + u8 subslice_mask[GEN_SS_MASK_SIZE]; + u8 geometry_subslice_mask[GEN_SS_MASK_SIZE]; + u8 compute_subslice_mask[GEN_SS_MASK_SIZE]; + u8 eu_mask[GEN_SS_MASK_SIZE * GEN_MAX_EU_STRIDE]; u16 eu_total; u8 eu_per_subslice; u8 min_eu_in_pool; @@ -116,7 +139,8 @@ u32 intel_sseu_make_rpcs(struct intel_gt *gt, const struct intel_sseu *req_sseu); void intel_sseu_dump(const struct sseu_dev_info *sseu, struct drm_printer *p); -void intel_sseu_print_topology(const struct sseu_dev_info *sseu, +void intel_sseu_print_topology(struct drm_i915_private *i915, + const struct sseu_dev_info *sseu, struct drm_printer *p); u16 intel_slicemask_from_dssmask(u64 dss_mask, int dss_per_slice); diff --git a/drivers/gpu/drm/i915/gt/intel_sseu_debugfs.c b/drivers/gpu/drm/i915/gt/intel_sseu_debugfs.c index a9d5bc49f361..2d5d011e01db 100644 --- a/drivers/gpu/drm/i915/gt/intel_sseu_debugfs.c +++ b/drivers/gpu/drm/i915/gt/intel_sseu_debugfs.c @@ -248,7 +248,7 @@ int intel_sseu_status(struct seq_file *m, struct intel_gt *gt) { struct drm_i915_private *i915 = gt->i915; const struct intel_gt_info *info = >->info; - struct sseu_dev_info sseu; + struct sseu_dev_info *sseu; intel_wakeref_t wakeref; if (GRAPHICS_VER(i915) < 8) @@ -258,23 +258,29 @@ int intel_sseu_status(struct seq_file *m, struct intel_gt *gt) i915_print_sseu_info(m, true, HAS_POOLED_EU(i915), &info->sseu); seq_puts(m, "SSEU Device Status\n"); - memset(&sseu, 0, sizeof(sseu)); - intel_sseu_set_info(&sseu, info->sseu.max_slices, + + sseu = kzalloc(sizeof(*sseu), GFP_KERNEL); + if (!sseu) + return -ENOMEM; + + intel_sseu_set_info(sseu, info->sseu.max_slices, info->sseu.max_subslices, info->sseu.max_eus_per_subslice); with_intel_runtime_pm(&i915->runtime_pm, wakeref) { if (IS_CHERRYVIEW(i915)) - cherryview_sseu_device_status(gt, &sseu); + cherryview_sseu_device_status(gt, sseu); else if (IS_BROADWELL(i915)) - bdw_sseu_device_status(gt, &sseu); + bdw_sseu_device_status(gt, sseu); else if (GRAPHICS_VER(i915) == 9) - gen9_sseu_device_status(gt, &sseu); + gen9_sseu_device_status(gt, sseu); else if (GRAPHICS_VER(i915) >= 11) - gen11_sseu_device_status(gt, &sseu); + gen11_sseu_device_status(gt, sseu); } - i915_print_sseu_info(m, false, HAS_POOLED_EU(i915), &sseu); + i915_print_sseu_info(m, false, HAS_POOLED_EU(i915), sseu); + + kfree(sseu); return 0; } @@ -287,22 +293,22 @@ static int sseu_status_show(struct seq_file *m, void *unused) } DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE(sseu_status); -static int rcs_topology_show(struct seq_file *m, void *unused) +static int sseu_topology_show(struct seq_file *m, void *unused) { struct intel_gt *gt = m->private; struct drm_printer p = drm_seq_file_printer(m); - intel_sseu_print_topology(>->info.sseu, &p); + intel_sseu_print_topology(gt->i915, >->info.sseu, &p); return 0; } -DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE(rcs_topology); +DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE(sseu_topology); void intel_sseu_debugfs_register(struct intel_gt *gt, struct dentry *root) { static const struct intel_gt_debugfs_file files[] = { { "sseu_status", &sseu_status_fops, NULL }, - { "rcs_topology", &rcs_topology_fops, NULL }, + { "sseu_topology", &sseu_topology_fops, NULL }, }; intel_gt_debugfs_register_files(root, files, ARRAY_SIZE(files), gt); diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c index c014b40d2e9f..a05c4b99b3fb 100644 --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c @@ -1072,9 +1072,15 @@ static void __set_mcr_steering(struct i915_wa_list *wal, static void __add_mcr_wa(struct intel_gt *gt, struct i915_wa_list *wal, unsigned int slice, unsigned int subslice) { - drm_dbg(>->i915->drm, "MCR slice=0x%x, subslice=0x%x\n", slice, subslice); + struct drm_printer p = drm_debug_printer("MCR Steering:"); __set_mcr_steering(wal, GEN8_MCR_SELECTOR, slice, subslice); + + gt->default_steering.groupid = slice; + gt->default_steering.instanceid = subslice; + + if (drm_debug_enabled(DRM_UT_DRIVER)) + intel_gt_report_steering(&p, gt, false); } static void @@ -2188,11 +2194,15 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal) */ wa_write_or(wal, GEN7_FF_THREAD_MODE, GEN12_FF_TESSELATION_DOP_GATE_DISABLE); + } + if (IS_ALDERLAKE_P(i915) || IS_DG2(i915) || IS_ALDERLAKE_S(i915) || + IS_DG1(i915) || IS_ROCKETLAKE(i915) || IS_TIGERLAKE(i915)) { /* * Wa_1606700617:tgl,dg1,adl-p * Wa_22010271021:tgl,rkl,dg1,adl-s,adl-p * Wa_14010826681:tgl,dg1,rkl,adl-p + * Wa_18019627453:dg2 */ wa_masked_en(wal, GEN9_CS_DEBUG_MODE1, @@ -2310,7 +2320,7 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal) FF_DOP_CLOCK_GATE_DISABLE); } - if (IS_GRAPHICS_VER(i915, 9, 12)) { + if (HAS_PERCTX_PREEMPT_CTRL(i915)) { /* FtrPerCtxtPreemptionGranularityControl:skl,bxt,kbl,cfl,cnl,icl,tgl */ wa_masked_en(wal, GEN7_FF_SLICE_CS_CHICKEN1, @@ -2618,6 +2628,11 @@ general_render_compute_wa_init(struct intel_engine_cs *engine, struct i915_wa_li wa_write_or(wal, GEN12_GAMCNTRL_CTRL, INVALIDATION_BROADCAST_MODE_DIS | GLOBAL_INVALIDATION_MODE); } + + if (IS_DG2(i915)) { + /* Wa_22014226127:dg2 */ + wa_write_or(wal, LSC_CHICKEN_BIT_0, DISABLE_D8_D16_COASLESCE); + } } static void @@ -2633,7 +2648,7 @@ engine_init_workarounds(struct intel_engine_cs *engine, struct i915_wa_list *wal * to a single RCS/CCS engine's workaround list since * they're reset as part of the general render domain reset. */ - if (engine->class == RENDER_CLASS) + if (engine->flags & I915_ENGINE_FIRST_RENDER_COMPUTE) general_render_compute_wa_init(engine, wal); if (engine->class == RENDER_CLASS) diff --git a/drivers/gpu/drm/i915/gt/selftest_execlists.c b/drivers/gpu/drm/i915/gt/selftest_execlists.c index 72d5faab8f9a..09f8cd2d0e2c 100644 --- a/drivers/gpu/drm/i915/gt/selftest_execlists.c +++ b/drivers/gpu/drm/i915/gt/selftest_execlists.c @@ -1736,15 +1736,9 @@ static int live_preempt(void *arg) enum intel_engine_id id; int err = -ENOMEM; - if (igt_spinner_init(&spin_hi, gt)) - return -ENOMEM; - - if (igt_spinner_init(&spin_lo, gt)) - goto err_spin_hi; - ctx_hi = kernel_context(gt->i915, NULL); if (!ctx_hi) - goto err_spin_lo; + return -ENOMEM; ctx_hi->sched.priority = I915_CONTEXT_MAX_USER_PRIORITY; ctx_lo = kernel_context(gt->i915, NULL); @@ -1752,6 +1746,12 @@ static int live_preempt(void *arg) goto err_ctx_hi; ctx_lo->sched.priority = I915_CONTEXT_MIN_USER_PRIORITY; + if (igt_spinner_init(&spin_hi, gt)) + goto err_ctx_lo; + + if (igt_spinner_init(&spin_lo, gt)) + goto err_spin_hi; + for_each_engine(engine, gt, id) { struct igt_live_test t; struct i915_request *rq; @@ -1761,14 +1761,14 @@ static int live_preempt(void *arg) if (igt_live_test_begin(&t, gt->i915, __func__, engine->name)) { err = -EIO; - goto err_ctx_lo; + goto err_spin_lo; } rq = spinner_create_request(&spin_lo, ctx_lo, engine, MI_ARB_CHECK); if (IS_ERR(rq)) { err = PTR_ERR(rq); - goto err_ctx_lo; + goto err_spin_lo; } i915_request_add(rq); @@ -1777,7 +1777,7 @@ static int live_preempt(void *arg) GEM_TRACE_DUMP(); intel_gt_set_wedged(gt); err = -EIO; - goto err_ctx_lo; + goto err_spin_lo; } rq = spinner_create_request(&spin_hi, ctx_hi, engine, @@ -1785,7 +1785,7 @@ static int live_preempt(void *arg) if (IS_ERR(rq)) { igt_spinner_end(&spin_lo); err = PTR_ERR(rq); - goto err_ctx_lo; + goto err_spin_lo; } i915_request_add(rq); @@ -1794,7 +1794,7 @@ static int live_preempt(void *arg) GEM_TRACE_DUMP(); intel_gt_set_wedged(gt); err = -EIO; - goto err_ctx_lo; + goto err_spin_lo; } igt_spinner_end(&spin_hi); @@ -1802,19 +1802,19 @@ static int live_preempt(void *arg) if (igt_live_test_end(&t)) { err = -EIO; - goto err_ctx_lo; + goto err_spin_lo; } } err = 0; -err_ctx_lo: - kernel_context_close(ctx_lo); -err_ctx_hi: - kernel_context_close(ctx_hi); err_spin_lo: igt_spinner_fini(&spin_lo); err_spin_hi: igt_spinner_fini(&spin_hi); +err_ctx_lo: + kernel_context_close(ctx_lo); +err_ctx_hi: + kernel_context_close(ctx_hi); return err; } @@ -1828,20 +1828,20 @@ static int live_late_preempt(void *arg) enum intel_engine_id id; int err = -ENOMEM; - if (igt_spinner_init(&spin_hi, gt)) - return -ENOMEM; - - if (igt_spinner_init(&spin_lo, gt)) - goto err_spin_hi; - ctx_hi = kernel_context(gt->i915, NULL); if (!ctx_hi) - goto err_spin_lo; + return -ENOMEM; ctx_lo = kernel_context(gt->i915, NULL); if (!ctx_lo) goto err_ctx_hi; + if (igt_spinner_init(&spin_hi, gt)) + goto err_ctx_lo; + + if (igt_spinner_init(&spin_lo, gt)) + goto err_spin_hi; + /* Make sure ctx_lo stays before ctx_hi until we trigger preemption. */ ctx_lo->sched.priority = 1; @@ -1854,14 +1854,14 @@ static int live_late_preempt(void *arg) if (igt_live_test_begin(&t, gt->i915, __func__, engine->name)) { err = -EIO; - goto err_ctx_lo; + goto err_spin_lo; } rq = spinner_create_request(&spin_lo, ctx_lo, engine, MI_ARB_CHECK); if (IS_ERR(rq)) { err = PTR_ERR(rq); - goto err_ctx_lo; + goto err_spin_lo; } i915_request_add(rq); @@ -1875,7 +1875,7 @@ static int live_late_preempt(void *arg) if (IS_ERR(rq)) { igt_spinner_end(&spin_lo); err = PTR_ERR(rq); - goto err_ctx_lo; + goto err_spin_lo; } i915_request_add(rq); @@ -1898,19 +1898,19 @@ static int live_late_preempt(void *arg) if (igt_live_test_end(&t)) { err = -EIO; - goto err_ctx_lo; + goto err_spin_lo; } } err = 0; -err_ctx_lo: - kernel_context_close(ctx_lo); -err_ctx_hi: - kernel_context_close(ctx_hi); err_spin_lo: igt_spinner_fini(&spin_lo); err_spin_hi: igt_spinner_fini(&spin_hi); +err_ctx_lo: + kernel_context_close(ctx_lo); +err_ctx_hi: + kernel_context_close(ctx_hi); return err; err_wedged: @@ -1918,7 +1918,7 @@ err_wedged: igt_spinner_end(&spin_lo); intel_gt_set_wedged(gt); err = -EIO; - goto err_ctx_lo; + goto err_spin_lo; } struct preempt_client { @@ -3382,12 +3382,9 @@ static int live_preempt_timeout(void *arg) if (!intel_has_reset_engine(gt)) return 0; - if (igt_spinner_init(&spin_lo, gt)) - return -ENOMEM; - ctx_hi = kernel_context(gt->i915, NULL); if (!ctx_hi) - goto err_spin_lo; + return -ENOMEM; ctx_hi->sched.priority = I915_CONTEXT_MAX_USER_PRIORITY; ctx_lo = kernel_context(gt->i915, NULL); @@ -3395,6 +3392,9 @@ static int live_preempt_timeout(void *arg) goto err_ctx_hi; ctx_lo->sched.priority = I915_CONTEXT_MIN_USER_PRIORITY; + if (igt_spinner_init(&spin_lo, gt)) + goto err_ctx_lo; + for_each_engine(engine, gt, id) { unsigned long saved_timeout; struct i915_request *rq; @@ -3406,21 +3406,21 @@ static int live_preempt_timeout(void *arg) MI_NOOP); /* preemption disabled */ if (IS_ERR(rq)) { err = PTR_ERR(rq); - goto err_ctx_lo; + goto err_spin_lo; } i915_request_add(rq); if (!igt_wait_for_spinner(&spin_lo, rq)) { intel_gt_set_wedged(gt); err = -EIO; - goto err_ctx_lo; + goto err_spin_lo; } rq = igt_request_alloc(ctx_hi, engine); if (IS_ERR(rq)) { igt_spinner_end(&spin_lo); err = PTR_ERR(rq); - goto err_ctx_lo; + goto err_spin_lo; } /* Flush the previous CS ack before changing timeouts */ @@ -3440,7 +3440,7 @@ static int live_preempt_timeout(void *arg) intel_gt_set_wedged(gt); i915_request_put(rq); err = -ETIME; - goto err_ctx_lo; + goto err_spin_lo; } igt_spinner_end(&spin_lo); @@ -3448,12 +3448,12 @@ static int live_preempt_timeout(void *arg) } err = 0; +err_spin_lo: + igt_spinner_fini(&spin_lo); err_ctx_lo: kernel_context_close(ctx_lo); err_ctx_hi: kernel_context_close(ctx_hi); -err_spin_lo: - igt_spinner_fini(&spin_lo); return err; } diff --git a/drivers/gpu/drm/i915/gt/selftest_lrc.c b/drivers/gpu/drm/i915/gt/selftest_lrc.c index 21c29d315cc0..6ba52ef1acb8 100644 --- a/drivers/gpu/drm/i915/gt/selftest_lrc.c +++ b/drivers/gpu/drm/i915/gt/selftest_lrc.c @@ -1753,8 +1753,8 @@ static int __live_pphwsp_runtime(struct intel_engine_cs *engine) if (IS_ERR(ce)) return PTR_ERR(ce); - ce->runtime.num_underflow = 0; - ce->runtime.max_underflow = 0; + ce->stats.runtime.num_underflow = 0; + ce->stats.runtime.max_underflow = 0; do { unsigned int loop = 1024; @@ -1792,11 +1792,11 @@ static int __live_pphwsp_runtime(struct intel_engine_cs *engine) intel_context_get_avg_runtime_ns(ce)); err = 0; - if (ce->runtime.num_underflow) { + if (ce->stats.runtime.num_underflow) { pr_err("%s: pphwsp underflow %u time(s), max %u cycles!\n", engine->name, - ce->runtime.num_underflow, - ce->runtime.max_underflow); + ce->stats.runtime.num_underflow, + ce->stats.runtime.max_underflow); GEM_TRACE_DUMP(); err = -EOVERFLOW; } diff --git a/drivers/gpu/drm/i915/gt/selftest_migrate.c b/drivers/gpu/drm/i915/gt/selftest_migrate.c index c9c4f391c5cc..2b0c87999949 100644 --- a/drivers/gpu/drm/i915/gt/selftest_migrate.c +++ b/drivers/gpu/drm/i915/gt/selftest_migrate.c @@ -132,6 +132,124 @@ err_free_src: return err; } +static int intel_context_copy_ccs(struct intel_context *ce, + const struct i915_deps *deps, + struct scatterlist *sg, + enum i915_cache_level cache_level, + bool write_to_ccs, + struct i915_request **out) +{ + u8 src_access = write_to_ccs ? DIRECT_ACCESS : INDIRECT_ACCESS; + u8 dst_access = write_to_ccs ? INDIRECT_ACCESS : DIRECT_ACCESS; + struct sgt_dma it = sg_sgt(sg); + struct i915_request *rq; + u32 offset; + int err; + + GEM_BUG_ON(ce->vm != ce->engine->gt->migrate.context->vm); + *out = NULL; + + GEM_BUG_ON(ce->ring->size < SZ_64K); + + offset = 0; + if (HAS_64K_PAGES(ce->engine->i915)) + offset = CHUNK_SZ; + + do { + int len; + + rq = i915_request_create(ce); + if (IS_ERR(rq)) { + err = PTR_ERR(rq); + goto out_ce; + } + + if (deps) { + err = i915_request_await_deps(rq, deps); + if (err) + goto out_rq; + + if (rq->engine->emit_init_breadcrumb) { + err = rq->engine->emit_init_breadcrumb(rq); + if (err) + goto out_rq; + } + + deps = NULL; + } + + /* The PTE updates + clear must not be interrupted. */ + err = emit_no_arbitration(rq); + if (err) + goto out_rq; + + len = emit_pte(rq, &it, cache_level, true, offset, CHUNK_SZ); + if (len <= 0) { + err = len; + goto out_rq; + } + + err = rq->engine->emit_flush(rq, EMIT_INVALIDATE); + if (err) + goto out_rq; + + err = emit_copy_ccs(rq, offset, dst_access, + offset, src_access, len); + if (err) + goto out_rq; + + err = rq->engine->emit_flush(rq, EMIT_INVALIDATE); + + /* Arbitration is re-enabled between requests. */ +out_rq: + if (*out) + i915_request_put(*out); + *out = i915_request_get(rq); + i915_request_add(rq); + if (err || !it.sg || !sg_dma_len(it.sg)) + break; + + cond_resched(); + } while (1); + +out_ce: + return err; +} + +static int +intel_migrate_ccs_copy(struct intel_migrate *m, + struct i915_gem_ww_ctx *ww, + const struct i915_deps *deps, + struct scatterlist *sg, + enum i915_cache_level cache_level, + bool write_to_ccs, + struct i915_request **out) +{ + struct intel_context *ce; + int err; + + *out = NULL; + if (!m->context) + return -ENODEV; + + ce = intel_migrate_create_context(m); + if (IS_ERR(ce)) + ce = intel_context_get(m->context); + GEM_BUG_ON(IS_ERR(ce)); + + err = intel_context_pin_ww(ce, ww); + if (err) + goto out; + + err = intel_context_copy_ccs(ce, deps, sg, cache_level, + write_to_ccs, out); + + intel_context_unpin(ce); +out: + intel_context_put(ce); + return err; +} + static int clear(struct intel_migrate *migrate, int (*fn)(struct intel_migrate *migrate, struct i915_gem_ww_ctx *ww, @@ -144,7 +262,8 @@ static int clear(struct intel_migrate *migrate, struct drm_i915_gem_object *obj; struct i915_request *rq; struct i915_gem_ww_ctx ww; - u32 *vaddr; + u32 *vaddr, val = 0; + bool ccs_cap = false; int err = 0; int i; @@ -152,7 +271,15 @@ static int clear(struct intel_migrate *migrate, if (IS_ERR(obj)) return 0; + /* Consider the rounded up memory too */ + sz = obj->base.size; + + if (HAS_FLAT_CCS(i915) && i915_gem_object_is_lmem(obj)) + ccs_cap = true; + for_i915_gem_ww(&ww, err, true) { + int ccs_bytes, ccs_bytes_per_chunk; + err = i915_gem_object_lock(obj, &ww); if (err) continue; @@ -167,44 +294,114 @@ static int clear(struct intel_migrate *migrate, vaddr[i] = ~i; i915_gem_object_flush_map(obj); - err = fn(migrate, &ww, obj, sz, &rq); - if (!err) - continue; + if (ccs_cap && !val) { + /* Write the obj data into ccs surface */ + err = intel_migrate_ccs_copy(migrate, &ww, NULL, + obj->mm.pages->sgl, + obj->cache_level, + true, &rq); + if (rq && !err) { + if (i915_request_wait(rq, 0, HZ) < 0) { + pr_err("%ps timed out, size: %u\n", + fn, sz); + err = -ETIME; + } + i915_request_put(rq); + rq = NULL; + } + if (err) + continue; + } - if (err != -EDEADLK && err != -EINTR && err != -ERESTARTSYS) - pr_err("%ps failed, size: %u\n", fn, sz); - if (rq) { - i915_request_wait(rq, 0, HZ); + err = fn(migrate, &ww, obj, val, &rq); + if (rq && !err) { + if (i915_request_wait(rq, 0, HZ) < 0) { + pr_err("%ps timed out, size: %u\n", fn, sz); + err = -ETIME; + } i915_request_put(rq); + rq = NULL; } - i915_gem_object_unpin_map(obj); - } - if (err) - goto err_out; + if (err) + continue; - if (rq) { - if (i915_request_wait(rq, 0, HZ) < 0) { - pr_err("%ps timed out, size: %u\n", fn, sz); - err = -ETIME; + i915_gem_object_flush_map(obj); + + /* Verify the set/clear of the obj mem */ + for (i = 0; !err && i < sz / PAGE_SIZE; i++) { + int x = i * 1024 + + i915_prandom_u32_max_state(1024, prng); + + if (vaddr[x] != val) { + pr_err("%ps failed, (%u != %u), offset: %zu\n", + fn, vaddr[x], val, x * sizeof(u32)); + igt_hexdump(vaddr + i * 1024, 4096); + err = -EINVAL; + } } - i915_request_put(rq); - } + if (err) + continue; - for (i = 0; !err && i < sz / PAGE_SIZE; i++) { - int x = i * 1024 + i915_prandom_u32_max_state(1024, prng); + if (ccs_cap && !val) { + for (i = 0; i < sz / sizeof(u32); i++) + vaddr[i] = ~i; + i915_gem_object_flush_map(obj); + + err = intel_migrate_ccs_copy(migrate, &ww, NULL, + obj->mm.pages->sgl, + obj->cache_level, + false, &rq); + if (rq && !err) { + if (i915_request_wait(rq, 0, HZ) < 0) { + pr_err("%ps timed out, size: %u\n", + fn, sz); + err = -ETIME; + } + i915_request_put(rq); + rq = NULL; + } + if (err) + continue; + + ccs_bytes = GET_CCS_BYTES(i915, sz); + ccs_bytes_per_chunk = GET_CCS_BYTES(i915, CHUNK_SZ); + i915_gem_object_flush_map(obj); + + for (i = 0; !err && i < DIV_ROUND_UP(ccs_bytes, PAGE_SIZE); i++) { + int offset = ((i * PAGE_SIZE) / + ccs_bytes_per_chunk) * CHUNK_SZ / sizeof(u32); + int ccs_bytes_left = (ccs_bytes - i * PAGE_SIZE) / sizeof(u32); + int x = i915_prandom_u32_max_state(min_t(int, 1024, + ccs_bytes_left), prng); + + if (vaddr[offset + x]) { + pr_err("%ps ccs clearing failed, offset: %ld/%d\n", + fn, i * PAGE_SIZE + x * sizeof(u32), ccs_bytes); + igt_hexdump(vaddr + offset, + min_t(int, 4096, + ccs_bytes_left * sizeof(u32))); + err = -EINVAL; + } + } + + if (err) + continue; + } + i915_gem_object_unpin_map(obj); + } - if (vaddr[x] != sz) { - pr_err("%ps failed, size: %u, offset: %zu\n", - fn, sz, x * sizeof(u32)); - igt_hexdump(vaddr + i * 1024, 4096); - err = -EINVAL; + if (err) { + if (err != -EDEADLK && err != -EINTR && err != -ERESTARTSYS) + pr_err("%ps failed, size: %u\n", fn, sz); + if (rq && err != -EINVAL) { + i915_request_wait(rq, 0, HZ); + i915_request_put(rq); } + + i915_gem_object_unpin_map(obj); } - i915_gem_object_unpin_map(obj); -err_out: i915_gem_object_put(obj); - return err; } @@ -621,13 +818,15 @@ static int perf_copy_blt(void *arg) for (i = 0; i < ARRAY_SIZE(sizes); i++) { struct drm_i915_gem_object *src, *dst; + size_t sz; int err; src = create_init_lmem_internal(gt, sizes[i], true); if (IS_ERR(src)) return PTR_ERR(src); - dst = create_init_lmem_internal(gt, sizes[i], false); + sz = src->base.size; + dst = create_init_lmem_internal(gt, sz, false); if (IS_ERR(dst)) { err = PTR_ERR(dst); goto err_src; @@ -640,7 +839,7 @@ static int perf_copy_blt(void *arg) dst->mm.pages->sgl, I915_CACHE_NONE, i915_gem_object_is_lmem(dst), - sizes[i]); + sz); i915_gem_object_unlock(dst); i915_gem_object_put(dst); diff --git a/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h b/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h index 7afdadc7656f..be9ac47fa9d0 100644 --- a/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h +++ b/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h @@ -122,17 +122,14 @@ enum intel_guc_action { INTEL_GUC_ACTION_SCHED_CONTEXT_MODE_DONE = 0x1002, INTEL_GUC_ACTION_SCHED_ENGINE_MODE_SET = 0x1003, INTEL_GUC_ACTION_SCHED_ENGINE_MODE_DONE = 0x1004, - INTEL_GUC_ACTION_SET_CONTEXT_PRIORITY = 0x1005, - INTEL_GUC_ACTION_SET_CONTEXT_EXECUTION_QUANTUM = 0x1006, - INTEL_GUC_ACTION_SET_CONTEXT_PREEMPTION_TIMEOUT = 0x1007, INTEL_GUC_ACTION_CONTEXT_RESET_NOTIFICATION = 0x1008, INTEL_GUC_ACTION_ENGINE_FAILURE_NOTIFICATION = 0x1009, + INTEL_GUC_ACTION_HOST2GUC_UPDATE_CONTEXT_POLICIES = 0x100B, INTEL_GUC_ACTION_SETUP_PC_GUCRC = 0x3004, INTEL_GUC_ACTION_AUTHENTICATE_HUC = 0x4000, + INTEL_GUC_ACTION_GET_HWCONFIG = 0x4100, INTEL_GUC_ACTION_REGISTER_CONTEXT = 0x4502, INTEL_GUC_ACTION_DEREGISTER_CONTEXT = 0x4503, - INTEL_GUC_ACTION_REGISTER_COMMAND_TRANSPORT_BUFFER = 0x4505, - INTEL_GUC_ACTION_DEREGISTER_COMMAND_TRANSPORT_BUFFER = 0x4506, INTEL_GUC_ACTION_DEREGISTER_CONTEXT_DONE = 0x4600, INTEL_GUC_ACTION_REGISTER_CONTEXT_MULTI_LRC = 0x4601, INTEL_GUC_ACTION_CLIENT_SOFT_RESET = 0x5507, @@ -173,4 +170,11 @@ enum intel_guc_sleep_state_status { #define GUC_LOG_CONTROL_VERBOSITY_MASK (0xF << GUC_LOG_CONTROL_VERBOSITY_SHIFT) #define GUC_LOG_CONTROL_DEFAULT_LOGGING (1 << 8) +enum intel_guc_state_capture_event_status { + INTEL_GUC_STATE_CAPTURE_EVENT_STATUS_SUCCESS = 0x0, + INTEL_GUC_STATE_CAPTURE_EVENT_STATUS_NOSPACE = 0x1, +}; + +#define INTEL_GUC_STATE_CAPTURE_EVENT_STATUS_MASK 0x000000FF + #endif /* _ABI_GUC_ACTIONS_ABI_H */ diff --git a/drivers/gpu/drm/i915/gt/uc/abi/guc_errors_abi.h b/drivers/gpu/drm/i915/gt/uc/abi/guc_errors_abi.h index c20658ee85a5..8085fb181274 100644 --- a/drivers/gpu/drm/i915/gt/uc/abi/guc_errors_abi.h +++ b/drivers/gpu/drm/i915/gt/uc/abi/guc_errors_abi.h @@ -8,6 +8,10 @@ enum intel_guc_response_status { INTEL_GUC_RESPONSE_STATUS_SUCCESS = 0x0, + INTEL_GUC_RESPONSE_NOT_SUPPORTED = 0x20, + INTEL_GUC_RESPONSE_NO_ATTRIBUTE_TABLE = 0x201, + INTEL_GUC_RESPONSE_NO_DECRYPTION_KEY = 0x202, + INTEL_GUC_RESPONSE_DECRYPTION_FAILED = 0x204, INTEL_GUC_RESPONSE_STATUS_GENERIC_FAIL = 0xF000, }; diff --git a/drivers/gpu/drm/i915/gt/uc/abi/guc_klvs_abi.h b/drivers/gpu/drm/i915/gt/uc/abi/guc_klvs_abi.h index f0814a57c191..4a59478c3b5c 100644 --- a/drivers/gpu/drm/i915/gt/uc/abi/guc_klvs_abi.h +++ b/drivers/gpu/drm/i915/gt/uc/abi/guc_klvs_abi.h @@ -6,6 +6,8 @@ #ifndef _ABI_GUC_KLVS_ABI_H #define _ABI_GUC_KLVS_ABI_H +#include <linux/types.h> + /** * DOC: GuC KLV * @@ -79,4 +81,17 @@ #define GUC_KLV_SELF_CFG_G2H_CTB_SIZE_KEY 0x0907 #define GUC_KLV_SELF_CFG_G2H_CTB_SIZE_LEN 1u +/* + * Per context scheduling policy update keys. + */ +enum { + GUC_CONTEXT_POLICIES_KLV_ID_EXECUTION_QUANTUM = 0x2001, + GUC_CONTEXT_POLICIES_KLV_ID_PREEMPTION_TIMEOUT = 0x2002, + GUC_CONTEXT_POLICIES_KLV_ID_SCHEDULING_PRIORITY = 0x2003, + GUC_CONTEXT_POLICIES_KLV_ID_PREEMPT_TO_IDLE_ON_QUANTUM_EXPIRY = 0x2004, + GUC_CONTEXT_POLICIES_KLV_ID_SLPM_GT_FREQUENCY = 0x2005, + + GUC_CONTEXT_POLICIES_KLV_NUM_IDS = 5, +}; + #endif /* _ABI_GUC_KLVS_ABI_H */ diff --git a/drivers/gpu/drm/i915/gt/uc/guc_capture_fwif.h b/drivers/gpu/drm/i915/gt/uc/guc_capture_fwif.h new file mode 100644 index 000000000000..3624abfd22d1 --- /dev/null +++ b/drivers/gpu/drm/i915/gt/uc/guc_capture_fwif.h @@ -0,0 +1,218 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright © 2021-2022 Intel Corporation + */ + +#ifndef _INTEL_GUC_CAPTURE_FWIF_H +#define _INTEL_GUC_CAPTURE_FWIF_H + +#include <linux/types.h> +#include "intel_guc_fwif.h" + +struct intel_guc; +struct file; + +/** + * struct __guc_capture_bufstate + * + * Book-keeping structure used to track read and write pointers + * as we extract error capture data from the GuC-log-buffer's + * error-capture region as a stream of dwords. + */ +struct __guc_capture_bufstate { + u32 size; + void *data; + u32 rd; + u32 wr; +}; + +/** + * struct __guc_capture_parsed_output - extracted error capture node + * + * A single unit of extracted error-capture output data grouped together + * at an engine-instance level. We keep these nodes in a linked list. + * See cachelist and outlist below. + */ +struct __guc_capture_parsed_output { + /* + * A single set of 3 capture lists: a global-list + * an engine-class-list and an engine-instance list. + * outlist in __guc_capture_parsed_output will keep + * a linked list of these nodes that will eventually + * be detached from outlist and attached into to + * i915_gpu_codedump in response to a context reset + */ + struct list_head link; + bool is_partial; + u32 eng_class; + u32 eng_inst; + u32 guc_id; + u32 lrca; + struct gcap_reg_list_info { + u32 vfid; + u32 num_regs; + struct guc_mmio_reg *regs; + } reginfo[GUC_CAPTURE_LIST_TYPE_MAX]; +#define GCAP_PARSED_REGLIST_INDEX_GLOBAL BIT(GUC_CAPTURE_LIST_TYPE_GLOBAL) +#define GCAP_PARSED_REGLIST_INDEX_ENGCLASS BIT(GUC_CAPTURE_LIST_TYPE_ENGINE_CLASS) +#define GCAP_PARSED_REGLIST_INDEX_ENGINST BIT(GUC_CAPTURE_LIST_TYPE_ENGINE_INSTANCE) +}; + +/** + * struct guc_debug_capture_list_header / struct guc_debug_capture_list + * + * As part of ADS registration, these header structures (followed by + * an array of 'struct guc_mmio_reg' entries) are used to register with + * GuC microkernel the list of registers we want it to dump out prior + * to a engine reset. + */ +struct guc_debug_capture_list_header { + u32 info; +#define GUC_CAPTURELISTHDR_NUMDESCR GENMASK(15, 0) +} __packed; + +struct guc_debug_capture_list { + struct guc_debug_capture_list_header header; + struct guc_mmio_reg regs[0]; +} __packed; + +/** + * struct __guc_mmio_reg_descr / struct __guc_mmio_reg_descr_group + * + * intel_guc_capture module uses these structures to maintain static + * tables (per unique platform) that consists of lists of registers + * (offsets, names, flags,...) that are used at the ADS regisration + * time as well as during runtime processing and reporting of error- + * capture states generated by GuC just prior to engine reset events. + */ +struct __guc_mmio_reg_descr { + i915_reg_t reg; + u32 flags; + u32 mask; + const char *regname; +}; + +struct __guc_mmio_reg_descr_group { + const struct __guc_mmio_reg_descr *list; + u32 num_regs; + u32 owner; /* see enum guc_capture_owner */ + u32 type; /* see enum guc_capture_type */ + u32 engine; /* as per MAX_ENGINE_CLASS */ + struct __guc_mmio_reg_descr *extlist; /* only used for steered registers */ +}; + +/** + * struct guc_state_capture_header_t / struct guc_state_capture_t / + * guc_state_capture_group_header_t / guc_state_capture_group_t + * + * Prior to resetting engines that have hung or faulted, GuC microkernel + * reports the engine error-state (register values that was read) by + * logging them into the shared GuC log buffer using these hierarchy + * of structures. + */ +struct guc_state_capture_header_t { + u32 owner; +#define CAP_HDR_CAPTURE_VFID GENMASK(7, 0) + u32 info; +#define CAP_HDR_CAPTURE_TYPE GENMASK(3, 0) /* see enum guc_capture_type */ +#define CAP_HDR_ENGINE_CLASS GENMASK(7, 4) /* see GUC_MAX_ENGINE_CLASSES */ +#define CAP_HDR_ENGINE_INSTANCE GENMASK(11, 8) + u32 lrca; /* if type-instance, LRCA (address) that hung, else set to ~0 */ + u32 guc_id; /* if type-instance, context index of hung context, else set to ~0 */ + u32 num_mmios; +#define CAP_HDR_NUM_MMIOS GENMASK(9, 0) +} __packed; + +struct guc_state_capture_t { + struct guc_state_capture_header_t header; + struct guc_mmio_reg mmio_entries[0]; +} __packed; + +enum guc_capture_group_types { + GUC_STATE_CAPTURE_GROUP_TYPE_FULL, + GUC_STATE_CAPTURE_GROUP_TYPE_PARTIAL, + GUC_STATE_CAPTURE_GROUP_TYPE_MAX, +}; + +struct guc_state_capture_group_header_t { + u32 owner; +#define CAP_GRP_HDR_CAPTURE_VFID GENMASK(7, 0) + u32 info; +#define CAP_GRP_HDR_NUM_CAPTURES GENMASK(7, 0) +#define CAP_GRP_HDR_CAPTURE_TYPE GENMASK(15, 8) /* guc_capture_group_types */ +} __packed; + +/* this is the top level structure where an error-capture dump starts */ +struct guc_state_capture_group_t { + struct guc_state_capture_group_header_t grp_header; + struct guc_state_capture_t capture_entries[0]; +} __packed; + +/** + * struct __guc_capture_ads_cache + * + * A structure to cache register lists that were populated and registered + * with GuC at startup during ADS registration. This allows much quicker + * GuC resets without re-parsing all the tables for the given gt. + */ +struct __guc_capture_ads_cache { + bool is_valid; + void *ptr; + size_t size; + int status; +}; + +/** + * struct intel_guc_state_capture + * + * Internal context of the intel_guc_capture module. + */ +struct intel_guc_state_capture { + /** + * @reglists: static table of register lists used for error-capture state. + */ + const struct __guc_mmio_reg_descr_group *reglists; + + /** + * @extlists: allocated table of steered register lists used for error-capture state. + * + * NOTE: steered registers have multiple instances depending on the HW configuration + * (slices or dual-sub-slices) and thus depends on HW fuses discovered at startup + */ + struct __guc_mmio_reg_descr_group *extlists; + + /** + * @ads_cache: cached register lists that is ADS format ready + */ + struct __guc_capture_ads_cache ads_cache[GUC_CAPTURE_LIST_INDEX_MAX] + [GUC_CAPTURE_LIST_TYPE_MAX] + [GUC_MAX_ENGINE_CLASSES]; + void *ads_null_cache; + + /** + * @cachelist: Pool of pre-allocated nodes for error capture output + * + * We need this pool of pre-allocated nodes because we cannot + * dynamically allocate new nodes when receiving the G2H notification + * because the event handlers for all G2H event-processing is called + * by the ct processing worker queue and when that queue is being + * processed, there is no absoluate guarantee that we are not in the + * midst of a GT reset operation (which doesn't allow allocations). + */ + struct list_head cachelist; +#define PREALLOC_NODES_MAX_COUNT (3 * GUC_MAX_ENGINE_CLASSES * GUC_MAX_INSTANCES_PER_CLASS) +#define PREALLOC_NODES_DEFAULT_NUMREGS 64 + int max_mmio_per_node; + + /** + * @outlist: Pool of pre-allocated nodes for error capture output + * + * A linked list of parsed GuC error-capture output data before + * reporting with formatting via i915_gpu_coredump. Each node in this linked list shall + * contain a single engine-capture including global, engine-class and + * engine-instance register dumps as per guc_capture_parsed_output_node + */ + struct list_head outlist; +}; + +#endif /* _INTEL_GUC_CAPTURE_FWIF_H */ diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.c b/drivers/gpu/drm/i915/gt/uc/intel_guc.c index 447a976c9f25..2c4ad4a65089 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.c @@ -9,8 +9,9 @@ #include "gt/intel_gt_pm_irq.h" #include "gt/intel_gt_regs.h" #include "intel_guc.h" -#include "intel_guc_slpc.h" #include "intel_guc_ads.h" +#include "intel_guc_capture.h" +#include "intel_guc_slpc.h" #include "intel_guc_submission.h" #include "i915_drv.h" #include "i915_irq.h" @@ -291,6 +292,41 @@ static u32 guc_ctl_wa_flags(struct intel_guc *guc) GRAPHICS_VER_FULL(gt->i915) < IP_VER(12, 50)) flags |= GUC_WA_POLLCS; + /* Wa_16011759253:dg2_g10:a0 */ + if (IS_DG2_GRAPHICS_STEP(gt->i915, G10, STEP_A0, STEP_B0)) + flags |= GUC_WA_GAM_CREDITS; + + /* Wa_14014475959:dg2 */ + if (IS_DG2(gt->i915)) + flags |= GUC_WA_HOLD_CCS_SWITCHOUT; + + /* + * Wa_14012197797:dg2_g10:a0,dg2_g11:a0 + * Wa_22011391025:dg2_g10,dg2_g11,dg2_g12 + * + * The same WA bit is used for both and 22011391025 is applicable to + * all DG2. + */ + if (IS_DG2(gt->i915)) + flags |= GUC_WA_DUAL_QUEUE; + + /* Wa_22011802037: graphics version 12 */ + if (GRAPHICS_VER(gt->i915) == 12) + flags |= GUC_WA_PRE_PARSER; + + /* Wa_16011777198:dg2 */ + if (IS_DG2_GRAPHICS_STEP(gt->i915, G10, STEP_A0, STEP_C0) || + IS_DG2_GRAPHICS_STEP(gt->i915, G11, STEP_A0, STEP_B0)) + flags |= GUC_WA_RCS_RESET_BEFORE_RC6; + + /* + * Wa_22012727170:dg2_g10[a0-c0), dg2_g11[a0..) + * Wa_22012727685:dg2_g11[a0..) + */ + if (IS_DG2_GRAPHICS_STEP(gt->i915, G10, STEP_A0, STEP_C0) || + IS_DG2_GRAPHICS_STEP(gt->i915, G11, STEP_A0, STEP_FOREVER)) + flags |= GUC_WA_CONTEXT_ISOLATION; + return flags; } @@ -362,9 +398,14 @@ int intel_guc_init(struct intel_guc *guc) if (ret) goto err_fw; - ret = intel_guc_ads_create(guc); + ret = intel_guc_capture_init(guc); if (ret) goto err_log; + + ret = intel_guc_ads_create(guc); + if (ret) + goto err_capture; + GEM_BUG_ON(!guc->ads_vma); ret = intel_guc_ct_init(&guc->ct); @@ -403,6 +444,8 @@ err_ct: intel_guc_ct_fini(&guc->ct); err_ads: intel_guc_ads_destroy(guc); +err_capture: + intel_guc_capture_destroy(guc); err_log: intel_guc_log_destroy(&guc->log); err_fw: @@ -430,6 +473,7 @@ void intel_guc_fini(struct intel_guc *guc) intel_guc_ct_fini(&guc->ct); intel_guc_ads_destroy(guc); + intel_guc_capture_destroy(guc); intel_guc_log_destroy(&guc->log); intel_uc_fw_fini(&guc->fw); } diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.h b/drivers/gpu/drm/i915/gt/uc/intel_guc.h index bf7079480d47..3f3373f68123 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc.h +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.h @@ -10,18 +10,19 @@ #include <linux/iosys-map.h> #include <linux/xarray.h> -#include "intel_uncore.h" +#include "intel_guc_ct.h" #include "intel_guc_fw.h" #include "intel_guc_fwif.h" -#include "intel_guc_ct.h" #include "intel_guc_log.h" #include "intel_guc_reg.h" #include "intel_guc_slpc_types.h" #include "intel_uc_fw.h" +#include "intel_uncore.h" #include "i915_utils.h" #include "i915_vma.h" struct __guc_ads_blob; +struct intel_guc_state_capture; /** * struct intel_guc - Top level structure of GuC. @@ -38,6 +39,8 @@ struct intel_guc { struct intel_guc_ct ct; /** @slpc: sub-structure containing SLPC related data and objects */ struct intel_guc_slpc slpc; + /** @capture: the error-state-capture module's data and objects */ + struct intel_guc_state_capture *capture; /** @sched_engine: Global engine used to submit requests to GuC */ struct i915_sched_engine *sched_engine; @@ -138,6 +141,8 @@ struct intel_guc { bool submission_supported; /** @submission_selected: tracks whether the user enabled GuC submission */ bool submission_selected; + /** @submission_initialized: tracks whether GuC submission has been initialised */ + bool submission_initialized; /** * @rc_supported: tracks whether we support GuC rc on the current platform */ @@ -160,14 +165,11 @@ struct intel_guc { struct guc_mmio_reg *ads_regset; /** @ads_golden_ctxt_size: size of the golden contexts in the ADS */ u32 ads_golden_ctxt_size; + /** @ads_capture_size: size of register lists in the ADS used for error capture */ + u32 ads_capture_size; /** @ads_engine_usage_size: size of engine usage in the ADS */ u32 ads_engine_usage_size; - /** @lrc_desc_pool: object allocated to hold the GuC LRC descriptor pool */ - struct i915_vma *lrc_desc_pool; - /** @lrc_desc_pool_vaddr: contents of the GuC LRC descriptor pool */ - void *lrc_desc_pool_vaddr; - /** * @context_lookup: used to resolve intel_context from guc_id, if a * context is present in this structure it is registered with the GuC @@ -431,6 +433,9 @@ int intel_guc_engine_failure_process_msg(struct intel_guc *guc, int intel_guc_error_capture_process_msg(struct intel_guc *guc, const u32 *msg, u32 len); +struct intel_engine_cs * +intel_guc_lookup_engine(struct intel_guc *guc, u8 guc_class, u8 instance); + void intel_guc_find_hung_context(struct intel_engine_cs *engine); int intel_guc_global_policies_update(struct intel_guc *guc); diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c index 92cb88248391..3eabf4cf8eec 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c @@ -11,6 +11,7 @@ #include "gt/intel_lrc.h" #include "gt/shmem_utils.h" #include "intel_guc_ads.h" +#include "intel_guc_capture.h" #include "intel_guc_fwif.h" #include "intel_uc.h" #include "i915_drv.h" @@ -86,8 +87,7 @@ static u32 guc_ads_golden_ctxt_size(struct intel_guc *guc) static u32 guc_ads_capture_size(struct intel_guc *guc) { - /* FIXME: Allocate a proper capture list */ - return PAGE_ALIGN(PAGE_SIZE); + return PAGE_ALIGN(guc->ads_capture_size); } static u32 guc_ads_private_data_size(struct intel_guc *guc) @@ -276,15 +276,24 @@ __mmio_reg_add(struct temp_regset *regset, struct guc_mmio_reg *reg) return slot; } -static long __must_check guc_mmio_reg_add(struct temp_regset *regset, - u32 offset, u32 flags) +#define GUC_REGSET_STEERING(group, instance) ( \ + FIELD_PREP(GUC_REGSET_STEERING_GROUP, (group)) | \ + FIELD_PREP(GUC_REGSET_STEERING_INSTANCE, (instance)) | \ + GUC_REGSET_NEEDS_STEERING \ +) + +static long __must_check guc_mmio_reg_add(struct intel_gt *gt, + struct temp_regset *regset, + i915_reg_t reg, u32 flags) { u32 count = regset->storage_used - (regset->registers - regset->storage); - struct guc_mmio_reg reg = { + u32 offset = i915_mmio_reg_offset(reg); + struct guc_mmio_reg entry = { .offset = offset, .flags = flags, }; struct guc_mmio_reg *slot; + u8 group, inst; /* * The mmio list is built using separate lists within the driver. @@ -292,11 +301,22 @@ static long __must_check guc_mmio_reg_add(struct temp_regset *regset, * register more than once. Do not consider this an error; silently * move on if the register is already in the list. */ - if (bsearch(®, regset->registers, count, - sizeof(reg), guc_mmio_reg_cmp)) + if (bsearch(&entry, regset->registers, count, + sizeof(entry), guc_mmio_reg_cmp)) return 0; - slot = __mmio_reg_add(regset, ®); + /* + * The GuC doesn't have a default steering, so we need to explicitly + * steer all registers that need steering. However, we do not keep track + * of all the steering ranges, only of those that have a chance of using + * a non-default steering from the i915 pov. Instead of adding such + * tracking, it is easier to just program the default steering for all + * regs that don't need a non-default one. + */ + intel_gt_get_valid_steering_for_reg(gt, reg, &group, &inst); + entry.flags |= GUC_REGSET_STEERING(group, inst); + + slot = __mmio_reg_add(regset, &entry); if (IS_ERR(slot)) return PTR_ERR(slot); @@ -311,14 +331,16 @@ static long __must_check guc_mmio_reg_add(struct temp_regset *regset, return 0; } -#define GUC_MMIO_REG_ADD(regset, reg, masked) \ - guc_mmio_reg_add(regset, \ - i915_mmio_reg_offset((reg)), \ +#define GUC_MMIO_REG_ADD(gt, regset, reg, masked) \ + guc_mmio_reg_add(gt, \ + regset, \ + (reg), \ (masked) ? GUC_REGSET_MASKED : 0) static int guc_mmio_regset_init(struct temp_regset *regset, struct intel_engine_cs *engine) { + struct intel_gt *gt = engine->gt; const u32 base = engine->mmio_base; struct i915_wa_list *wal = &engine->wa_list; struct i915_wa *wa; @@ -331,26 +353,26 @@ static int guc_mmio_regset_init(struct temp_regset *regset, */ regset->registers = regset->storage + regset->storage_used; - ret |= GUC_MMIO_REG_ADD(regset, RING_MODE_GEN7(base), true); - ret |= GUC_MMIO_REG_ADD(regset, RING_HWS_PGA(base), false); - ret |= GUC_MMIO_REG_ADD(regset, RING_IMR(base), false); + ret |= GUC_MMIO_REG_ADD(gt, regset, RING_MODE_GEN7(base), true); + ret |= GUC_MMIO_REG_ADD(gt, regset, RING_HWS_PGA(base), false); + ret |= GUC_MMIO_REG_ADD(gt, regset, RING_IMR(base), false); - if (engine->class == RENDER_CLASS && + if ((engine->flags & I915_ENGINE_FIRST_RENDER_COMPUTE) && CCS_MASK(engine->gt)) - ret |= GUC_MMIO_REG_ADD(regset, GEN12_RCU_MODE, true); + ret |= GUC_MMIO_REG_ADD(gt, regset, GEN12_RCU_MODE, true); for (i = 0, wa = wal->list; i < wal->count; i++, wa++) - ret |= GUC_MMIO_REG_ADD(regset, wa->reg, wa->masked_reg); + ret |= GUC_MMIO_REG_ADD(gt, regset, wa->reg, wa->masked_reg); /* Be extra paranoid and include all whitelist registers. */ for (i = 0; i < RING_MAX_NONPRIV_SLOTS; i++) - ret |= GUC_MMIO_REG_ADD(regset, + ret |= GUC_MMIO_REG_ADD(gt, regset, RING_FORCE_TO_NONPRIV(base, i), false); /* add in local MOCS registers */ for (i = 0; i < GEN9_LNCFCMOCS_REG_COUNT; i++) - ret |= GUC_MMIO_REG_ADD(regset, GEN9_LNCFCMOCS(i), false); + ret |= GUC_MMIO_REG_ADD(gt, regset, GEN9_LNCFCMOCS(i), false); return ret ? -1 : 0; } @@ -433,7 +455,7 @@ static void guc_mmio_reg_state_init(struct intel_guc *guc) static void fill_engine_enable_masks(struct intel_gt *gt, struct iosys_map *info_map) { - info_map_write(info_map, engine_enabled_masks[GUC_RENDER_CLASS], 1); + info_map_write(info_map, engine_enabled_masks[GUC_RENDER_CLASS], RCS_MASK(gt)); info_map_write(info_map, engine_enabled_masks[GUC_COMPUTE_CLASS], CCS_MASK(gt)); info_map_write(info_map, engine_enabled_masks[GUC_BLITTER_CLASS], 1); info_map_write(info_map, engine_enabled_masks[GUC_VIDEO_CLASS], VDBOX_MASK(gt)); @@ -589,24 +611,119 @@ static void guc_init_golden_context(struct intel_guc *guc) GEM_BUG_ON(guc->ads_golden_ctxt_size != total_size); } -static void guc_capture_list_init(struct intel_guc *guc) +static int +guc_capture_prep_lists(struct intel_guc *guc) { + struct intel_gt *gt = guc_to_gt(guc); + struct drm_i915_private *i915 = guc_to_gt(guc)->i915; + u32 ads_ggtt, capture_offset, null_ggtt, total_size = 0; + struct guc_gt_system_info local_info; + struct iosys_map info_map; + bool ads_is_mapped; + size_t size = 0; + void *ptr; int i, j; - u32 addr_ggtt, offset; - offset = guc_ads_capture_offset(guc); - addr_ggtt = intel_guc_ggtt_offset(guc, guc->ads_vma) + offset; + ads_is_mapped = !iosys_map_is_null(&guc->ads_map); + if (ads_is_mapped) { + capture_offset = guc_ads_capture_offset(guc); + ads_ggtt = intel_guc_ggtt_offset(guc, guc->ads_vma); + info_map = IOSYS_MAP_INIT_OFFSET(&guc->ads_map, + offsetof(struct __guc_ads_blob, system_info)); + } else { + memset(&local_info, 0, sizeof(local_info)); + iosys_map_set_vaddr(&info_map, &local_info); + fill_engine_enable_masks(gt, &info_map); + } - /* FIXME: Populate a proper capture list */ + /* first, set aside the first page for a capture_list with zero descriptors */ + total_size = PAGE_SIZE; + if (ads_is_mapped) { + if (!intel_guc_capture_getnullheader(guc, &ptr, &size)) + iosys_map_memcpy_to(&guc->ads_map, capture_offset, ptr, size); + null_ggtt = ads_ggtt + capture_offset; + capture_offset += PAGE_SIZE; + } for (i = 0; i < GUC_CAPTURE_LIST_INDEX_MAX; i++) { for (j = 0; j < GUC_MAX_ENGINE_CLASSES; j++) { - ads_blob_write(guc, ads.capture_instance[i][j], addr_ggtt); - ads_blob_write(guc, ads.capture_class[i][j], addr_ggtt); - } - ads_blob_write(guc, ads.capture_global[i], addr_ggtt); + /* null list if we dont have said engine or list */ + if (!info_map_read(&info_map, engine_enabled_masks[j])) { + if (ads_is_mapped) { + ads_blob_write(guc, ads.capture_class[i][j], null_ggtt); + ads_blob_write(guc, ads.capture_instance[i][j], null_ggtt); + } + continue; + } + if (intel_guc_capture_getlistsize(guc, i, + GUC_CAPTURE_LIST_TYPE_ENGINE_CLASS, + j, &size)) { + if (ads_is_mapped) + ads_blob_write(guc, ads.capture_class[i][j], null_ggtt); + goto engine_instance_list; + } + total_size += size; + if (ads_is_mapped) { + if (total_size > guc->ads_capture_size || + intel_guc_capture_getlist(guc, i, + GUC_CAPTURE_LIST_TYPE_ENGINE_CLASS, + j, &ptr)) { + ads_blob_write(guc, ads.capture_class[i][j], null_ggtt); + continue; + } + ads_blob_write(guc, ads.capture_class[i][j], ads_ggtt + + capture_offset); + iosys_map_memcpy_to(&guc->ads_map, capture_offset, ptr, size); + capture_offset += size; + } +engine_instance_list: + if (intel_guc_capture_getlistsize(guc, i, + GUC_CAPTURE_LIST_TYPE_ENGINE_INSTANCE, + j, &size)) { + if (ads_is_mapped) + ads_blob_write(guc, ads.capture_instance[i][j], null_ggtt); + continue; + } + total_size += size; + if (ads_is_mapped) { + if (total_size > guc->ads_capture_size || + intel_guc_capture_getlist(guc, i, + GUC_CAPTURE_LIST_TYPE_ENGINE_INSTANCE, + j, &ptr)) { + ads_blob_write(guc, ads.capture_instance[i][j], null_ggtt); + continue; + } + ads_blob_write(guc, ads.capture_instance[i][j], ads_ggtt + + capture_offset); + iosys_map_memcpy_to(&guc->ads_map, capture_offset, ptr, size); + capture_offset += size; + } + } + if (intel_guc_capture_getlistsize(guc, i, GUC_CAPTURE_LIST_TYPE_GLOBAL, 0, &size)) { + if (ads_is_mapped) + ads_blob_write(guc, ads.capture_global[i], null_ggtt); + continue; + } + total_size += size; + if (ads_is_mapped) { + if (total_size > guc->ads_capture_size || + intel_guc_capture_getlist(guc, i, GUC_CAPTURE_LIST_TYPE_GLOBAL, 0, + &ptr)) { + ads_blob_write(guc, ads.capture_global[i], null_ggtt); + continue; + } + ads_blob_write(guc, ads.capture_global[i], ads_ggtt + capture_offset); + iosys_map_memcpy_to(&guc->ads_map, capture_offset, ptr, size); + capture_offset += size; + } } + + if (guc->ads_capture_size && guc->ads_capture_size != PAGE_ALIGN(total_size)) + drm_warn(&i915->drm, "GuC->ADS->Capture alloc size changed from %d to %d\n", + guc->ads_capture_size, PAGE_ALIGN(total_size)); + + return PAGE_ALIGN(total_size); } static void __guc_ads_init(struct intel_guc *guc) @@ -644,8 +761,8 @@ static void __guc_ads_init(struct intel_guc *guc) base = intel_guc_ggtt_offset(guc, guc->ads_vma); - /* Capture list for hang debug */ - guc_capture_list_init(guc); + /* Lists for error capture debug */ + guc_capture_prep_lists(guc); /* ADS */ ads_blob_write(guc, ads.scheduler_policies, base + @@ -693,6 +810,12 @@ int intel_guc_ads_create(struct intel_guc *guc) return ret; guc->ads_golden_ctxt_size = ret; + /* Likewise the capture lists: */ + ret = guc_capture_prep_lists(guc); + if (ret < 0) + return ret; + guc->ads_capture_size = ret; + /* Now the total size can be determined: */ size = guc_ads_blob_size(guc); diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c new file mode 100644 index 000000000000..c4e25966d3e9 --- /dev/null +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c @@ -0,0 +1,1657 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright © 2021-2022 Intel Corporation + */ + +#include <linux/types.h> + +#include <drm/drm_print.h> + +#include "gt/intel_engine_regs.h" +#include "gt/intel_gt.h" +#include "gt/intel_gt_regs.h" +#include "gt/intel_lrc.h" +#include "guc_capture_fwif.h" +#include "intel_guc_capture.h" +#include "intel_guc_fwif.h" +#include "i915_drv.h" +#include "i915_gpu_error.h" +#include "i915_irq.h" +#include "i915_memcpy.h" +#include "i915_reg.h" + +/* + * Define all device tables of GuC error capture register lists + * NOTE: For engine-registers, GuC only needs the register offsets + * from the engine-mmio-base + */ +#define COMMON_BASE_GLOBAL \ + { FORCEWAKE_MT, 0, 0, "FORCEWAKE" } + +#define COMMON_GEN9BASE_GLOBAL \ + { GEN8_FAULT_TLB_DATA0, 0, 0, "GEN8_FAULT_TLB_DATA0" }, \ + { GEN8_FAULT_TLB_DATA1, 0, 0, "GEN8_FAULT_TLB_DATA1" }, \ + { ERROR_GEN6, 0, 0, "ERROR_GEN6" }, \ + { DONE_REG, 0, 0, "DONE_REG" }, \ + { HSW_GTT_CACHE_EN, 0, 0, "HSW_GTT_CACHE_EN" } + +#define COMMON_GEN12BASE_GLOBAL \ + { GEN12_FAULT_TLB_DATA0, 0, 0, "GEN12_FAULT_TLB_DATA0" }, \ + { GEN12_FAULT_TLB_DATA1, 0, 0, "GEN12_FAULT_TLB_DATA1" }, \ + { GEN12_AUX_ERR_DBG, 0, 0, "AUX_ERR_DBG" }, \ + { GEN12_GAM_DONE, 0, 0, "GAM_DONE" }, \ + { GEN12_RING_FAULT_REG, 0, 0, "FAULT_REG" } + +#define COMMON_BASE_ENGINE_INSTANCE \ + { RING_PSMI_CTL(0), 0, 0, "RC PSMI" }, \ + { RING_ESR(0), 0, 0, "ESR" }, \ + { RING_DMA_FADD(0), 0, 0, "RING_DMA_FADD_LDW" }, \ + { RING_DMA_FADD_UDW(0), 0, 0, "RING_DMA_FADD_UDW" }, \ + { RING_IPEIR(0), 0, 0, "IPEIR" }, \ + { RING_IPEHR(0), 0, 0, "IPEHR" }, \ + { RING_INSTPS(0), 0, 0, "INSTPS" }, \ + { RING_BBADDR(0), 0, 0, "RING_BBADDR_LOW32" }, \ + { RING_BBADDR_UDW(0), 0, 0, "RING_BBADDR_UP32" }, \ + { RING_BBSTATE(0), 0, 0, "BB_STATE" }, \ + { CCID(0), 0, 0, "CCID" }, \ + { RING_ACTHD(0), 0, 0, "ACTHD_LDW" }, \ + { RING_ACTHD_UDW(0), 0, 0, "ACTHD_UDW" }, \ + { RING_INSTPM(0), 0, 0, "INSTPM" }, \ + { RING_INSTDONE(0), 0, 0, "INSTDONE" }, \ + { RING_NOPID(0), 0, 0, "RING_NOPID" }, \ + { RING_START(0), 0, 0, "START" }, \ + { RING_HEAD(0), 0, 0, "HEAD" }, \ + { RING_TAIL(0), 0, 0, "TAIL" }, \ + { RING_CTL(0), 0, 0, "CTL" }, \ + { RING_MI_MODE(0), 0, 0, "MODE" }, \ + { RING_CONTEXT_CONTROL(0), 0, 0, "RING_CONTEXT_CONTROL" }, \ + { RING_HWS_PGA(0), 0, 0, "HWS" }, \ + { RING_MODE_GEN7(0), 0, 0, "GFX_MODE" }, \ + { GEN8_RING_PDP_LDW(0, 0), 0, 0, "PDP0_LDW" }, \ + { GEN8_RING_PDP_UDW(0, 0), 0, 0, "PDP0_UDW" }, \ + { GEN8_RING_PDP_LDW(0, 1), 0, 0, "PDP1_LDW" }, \ + { GEN8_RING_PDP_UDW(0, 1), 0, 0, "PDP1_UDW" }, \ + { GEN8_RING_PDP_LDW(0, 2), 0, 0, "PDP2_LDW" }, \ + { GEN8_RING_PDP_UDW(0, 2), 0, 0, "PDP2_UDW" }, \ + { GEN8_RING_PDP_LDW(0, 3), 0, 0, "PDP3_LDW" }, \ + { GEN8_RING_PDP_UDW(0, 3), 0, 0, "PDP3_UDW" } + +#define COMMON_BASE_HAS_EU \ + { EIR, 0, 0, "EIR" } + +#define COMMON_BASE_RENDER \ + { GEN7_SC_INSTDONE, 0, 0, "GEN7_SC_INSTDONE" } + +#define COMMON_GEN12BASE_RENDER \ + { GEN12_SC_INSTDONE_EXTRA, 0, 0, "GEN12_SC_INSTDONE_EXTRA" }, \ + { GEN12_SC_INSTDONE_EXTRA2, 0, 0, "GEN12_SC_INSTDONE_EXTRA2" } + +#define COMMON_GEN12BASE_VEC \ + { GEN12_SFC_DONE(0), 0, 0, "SFC_DONE[0]" }, \ + { GEN12_SFC_DONE(1), 0, 0, "SFC_DONE[1]" }, \ + { GEN12_SFC_DONE(2), 0, 0, "SFC_DONE[2]" }, \ + { GEN12_SFC_DONE(3), 0, 0, "SFC_DONE[3]" } + +/* XE_LPD - Global */ +static const struct __guc_mmio_reg_descr xe_lpd_global_regs[] = { + COMMON_BASE_GLOBAL, + COMMON_GEN9BASE_GLOBAL, + COMMON_GEN12BASE_GLOBAL, +}; + +/* XE_LPD - Render / Compute Per-Class */ +static const struct __guc_mmio_reg_descr xe_lpd_rc_class_regs[] = { + COMMON_BASE_HAS_EU, + COMMON_BASE_RENDER, + COMMON_GEN12BASE_RENDER, +}; + +/* GEN9/XE_LPD - Render / Compute Per-Engine-Instance */ +static const struct __guc_mmio_reg_descr xe_lpd_rc_inst_regs[] = { + COMMON_BASE_ENGINE_INSTANCE, +}; + +/* GEN9/XE_LPD - Media Decode/Encode Per-Engine-Instance */ +static const struct __guc_mmio_reg_descr xe_lpd_vd_inst_regs[] = { + COMMON_BASE_ENGINE_INSTANCE, +}; + +/* XE_LPD - Video Enhancement Per-Class */ +static const struct __guc_mmio_reg_descr xe_lpd_vec_class_regs[] = { + COMMON_GEN12BASE_VEC, +}; + +/* GEN9/XE_LPD - Video Enhancement Per-Engine-Instance */ +static const struct __guc_mmio_reg_descr xe_lpd_vec_inst_regs[] = { + COMMON_BASE_ENGINE_INSTANCE, +}; + +/* GEN9/XE_LPD - Blitter Per-Engine-Instance */ +static const struct __guc_mmio_reg_descr xe_lpd_blt_inst_regs[] = { + COMMON_BASE_ENGINE_INSTANCE, +}; + +/* GEN9 - Global */ +static const struct __guc_mmio_reg_descr default_global_regs[] = { + COMMON_BASE_GLOBAL, + COMMON_GEN9BASE_GLOBAL, +}; + +static const struct __guc_mmio_reg_descr default_rc_class_regs[] = { + COMMON_BASE_HAS_EU, + COMMON_BASE_RENDER, +}; + +/* + * Empty lists: + * GEN9/XE_LPD - Blitter Per-Class + * GEN9/XE_LPD - Media Decode/Encode Per-Class + * GEN9 - VEC Class + */ +static const struct __guc_mmio_reg_descr empty_regs_list[] = { +}; + +#define TO_GCAP_DEF_OWNER(x) (GUC_CAPTURE_LIST_INDEX_##x) +#define TO_GCAP_DEF_TYPE(x) (GUC_CAPTURE_LIST_TYPE_##x) +#define MAKE_REGLIST(regslist, regsowner, regstype, class) \ + { \ + regslist, \ + ARRAY_SIZE(regslist), \ + TO_GCAP_DEF_OWNER(regsowner), \ + TO_GCAP_DEF_TYPE(regstype), \ + class, \ + NULL, \ + } + +/* List of lists */ +static struct __guc_mmio_reg_descr_group default_lists[] = { + MAKE_REGLIST(default_global_regs, PF, GLOBAL, 0), + MAKE_REGLIST(default_rc_class_regs, PF, ENGINE_CLASS, GUC_RENDER_CLASS), + MAKE_REGLIST(xe_lpd_rc_inst_regs, PF, ENGINE_INSTANCE, GUC_RENDER_CLASS), + MAKE_REGLIST(empty_regs_list, PF, ENGINE_CLASS, GUC_VIDEO_CLASS), + MAKE_REGLIST(xe_lpd_vd_inst_regs, PF, ENGINE_INSTANCE, GUC_VIDEO_CLASS), + MAKE_REGLIST(empty_regs_list, PF, ENGINE_CLASS, GUC_VIDEOENHANCE_CLASS), + MAKE_REGLIST(xe_lpd_vec_inst_regs, PF, ENGINE_INSTANCE, GUC_VIDEOENHANCE_CLASS), + MAKE_REGLIST(empty_regs_list, PF, ENGINE_CLASS, GUC_BLITTER_CLASS), + MAKE_REGLIST(xe_lpd_blt_inst_regs, PF, ENGINE_INSTANCE, GUC_BLITTER_CLASS), + {} +}; + +static const struct __guc_mmio_reg_descr_group xe_lpd_lists[] = { + MAKE_REGLIST(xe_lpd_global_regs, PF, GLOBAL, 0), + MAKE_REGLIST(xe_lpd_rc_class_regs, PF, ENGINE_CLASS, GUC_RENDER_CLASS), + MAKE_REGLIST(xe_lpd_rc_inst_regs, PF, ENGINE_INSTANCE, GUC_RENDER_CLASS), + MAKE_REGLIST(empty_regs_list, PF, ENGINE_CLASS, GUC_VIDEO_CLASS), + MAKE_REGLIST(xe_lpd_vd_inst_regs, PF, ENGINE_INSTANCE, GUC_VIDEO_CLASS), + MAKE_REGLIST(xe_lpd_vec_class_regs, PF, ENGINE_CLASS, GUC_VIDEOENHANCE_CLASS), + MAKE_REGLIST(xe_lpd_vec_inst_regs, PF, ENGINE_INSTANCE, GUC_VIDEOENHANCE_CLASS), + MAKE_REGLIST(empty_regs_list, PF, ENGINE_CLASS, GUC_BLITTER_CLASS), + MAKE_REGLIST(xe_lpd_blt_inst_regs, PF, ENGINE_INSTANCE, GUC_BLITTER_CLASS), + {} +}; + +static const struct __guc_mmio_reg_descr_group * +guc_capture_get_one_list(const struct __guc_mmio_reg_descr_group *reglists, + u32 owner, u32 type, u32 id) +{ + int i; + + if (!reglists) + return NULL; + + for (i = 0; reglists[i].list; ++i) { + if (reglists[i].owner == owner && reglists[i].type == type && + (reglists[i].engine == id || reglists[i].type == GUC_CAPTURE_LIST_TYPE_GLOBAL)) + return ®lists[i]; + } + + return NULL; +} + +static struct __guc_mmio_reg_descr_group * +guc_capture_get_one_ext_list(struct __guc_mmio_reg_descr_group *reglists, + u32 owner, u32 type, u32 id) +{ + int i; + + if (!reglists) + return NULL; + + for (i = 0; reglists[i].extlist; ++i) { + if (reglists[i].owner == owner && reglists[i].type == type && + (reglists[i].engine == id || reglists[i].type == GUC_CAPTURE_LIST_TYPE_GLOBAL)) + return ®lists[i]; + } + + return NULL; +} + +static void guc_capture_free_extlists(struct __guc_mmio_reg_descr_group *reglists) +{ + int i = 0; + + if (!reglists) + return; + + while (reglists[i].extlist) + kfree(reglists[i++].extlist); +} + +struct __ext_steer_reg { + const char *name; + i915_reg_t reg; +}; + +static const struct __ext_steer_reg xe_extregs[] = { + {"GEN7_SAMPLER_INSTDONE", GEN7_SAMPLER_INSTDONE}, + {"GEN7_ROW_INSTDONE", GEN7_ROW_INSTDONE} +}; + +static void __fill_ext_reg(struct __guc_mmio_reg_descr *ext, + const struct __ext_steer_reg *extlist, + int slice_id, int subslice_id) +{ + ext->reg = extlist->reg; + ext->flags = FIELD_PREP(GUC_REGSET_STEERING_GROUP, slice_id); + ext->flags |= FIELD_PREP(GUC_REGSET_STEERING_INSTANCE, subslice_id); + ext->regname = extlist->name; +} + +static int +__alloc_ext_regs(struct __guc_mmio_reg_descr_group *newlist, + const struct __guc_mmio_reg_descr_group *rootlist, int num_regs) +{ + struct __guc_mmio_reg_descr *list; + + list = kcalloc(num_regs, sizeof(struct __guc_mmio_reg_descr), GFP_KERNEL); + if (!list) + return -ENOMEM; + + newlist->extlist = list; + newlist->num_regs = num_regs; + newlist->owner = rootlist->owner; + newlist->engine = rootlist->engine; + newlist->type = rootlist->type; + + return 0; +} + +static void +guc_capture_alloc_steered_lists_xe_lpd(struct intel_guc *guc, + const struct __guc_mmio_reg_descr_group *lists) +{ + struct intel_gt *gt = guc_to_gt(guc); + struct drm_i915_private *i915 = guc_to_gt(guc)->i915; + int slice, subslice, i, num_steer_regs, num_tot_regs = 0; + const struct __guc_mmio_reg_descr_group *list; + struct __guc_mmio_reg_descr_group *extlists; + struct __guc_mmio_reg_descr *extarray; + struct sseu_dev_info *sseu; + + /* In XE_LPD we only have steered registers for the render-class */ + list = guc_capture_get_one_list(lists, GUC_CAPTURE_LIST_INDEX_PF, + GUC_CAPTURE_LIST_TYPE_ENGINE_CLASS, GUC_RENDER_CLASS); + /* skip if extlists was previously allocated */ + if (!list || guc->capture->extlists) + return; + + num_steer_regs = ARRAY_SIZE(xe_extregs); + + sseu = >->info.sseu; + for_each_instdone_slice_subslice(i915, sseu, slice, subslice) + num_tot_regs += num_steer_regs; + + if (!num_tot_regs) + return; + + /* allocate an extra for an end marker */ + extlists = kcalloc(2, sizeof(struct __guc_mmio_reg_descr_group), GFP_KERNEL); + if (!extlists) + return; + + if (__alloc_ext_regs(&extlists[0], list, num_tot_regs)) { + kfree(extlists); + return; + } + + extarray = extlists[0].extlist; + for_each_instdone_slice_subslice(i915, sseu, slice, subslice) { + for (i = 0; i < num_steer_regs; ++i) { + __fill_ext_reg(extarray, &xe_extregs[i], slice, subslice); + ++extarray; + } + } + + guc->capture->extlists = extlists; +} + +static const struct __ext_steer_reg xehpg_extregs[] = { + {"XEHPG_INSTDONE_GEOM_SVG", XEHPG_INSTDONE_GEOM_SVG} +}; + +static bool __has_xehpg_extregs(u32 ipver) +{ + return (ipver >= IP_VER(12, 55)); +} + +static void +guc_capture_alloc_steered_lists_xe_hpg(struct intel_guc *guc, + const struct __guc_mmio_reg_descr_group *lists, + u32 ipver) +{ + struct intel_gt *gt = guc_to_gt(guc); + struct drm_i915_private *i915 = guc_to_gt(guc)->i915; + struct sseu_dev_info *sseu; + int slice, subslice, i, iter, num_steer_regs, num_tot_regs = 0; + const struct __guc_mmio_reg_descr_group *list; + struct __guc_mmio_reg_descr_group *extlists; + struct __guc_mmio_reg_descr *extarray; + + /* In XE_LP / HPG we only have render-class steering registers during error-capture */ + list = guc_capture_get_one_list(lists, GUC_CAPTURE_LIST_INDEX_PF, + GUC_CAPTURE_LIST_TYPE_ENGINE_CLASS, GUC_RENDER_CLASS); + /* skip if extlists was previously allocated */ + if (!list || guc->capture->extlists) + return; + + num_steer_regs = ARRAY_SIZE(xe_extregs); + if (__has_xehpg_extregs(ipver)) + num_steer_regs += ARRAY_SIZE(xehpg_extregs); + + sseu = >->info.sseu; + for_each_instdone_gslice_dss_xehp(i915, sseu, iter, slice, subslice) { + num_tot_regs += num_steer_regs; + } + + if (!num_tot_regs) + return; + + /* allocate an extra for an end marker */ + extlists = kcalloc(2, sizeof(struct __guc_mmio_reg_descr_group), GFP_KERNEL); + if (!extlists) + return; + + if (__alloc_ext_regs(&extlists[0], list, num_tot_regs)) { + kfree(extlists); + return; + } + + extarray = extlists[0].extlist; + for_each_instdone_gslice_dss_xehp(i915, sseu, iter, slice, subslice) { + for (i = 0; i < ARRAY_SIZE(xe_extregs); ++i) { + __fill_ext_reg(extarray, &xe_extregs[i], slice, subslice); + ++extarray; + } + if (__has_xehpg_extregs(ipver)) { + for (i = 0; i < ARRAY_SIZE(xehpg_extregs); ++i) { + __fill_ext_reg(extarray, &xehpg_extregs[i], slice, subslice); + ++extarray; + } + } + } + + drm_dbg(&i915->drm, "GuC-capture found %d-ext-regs.\n", num_tot_regs); + guc->capture->extlists = extlists; +} + +static const struct __guc_mmio_reg_descr_group * +guc_capture_get_device_reglist(struct intel_guc *guc) +{ + struct drm_i915_private *i915 = guc_to_gt(guc)->i915; + + if (GRAPHICS_VER(i915) > 11) { + /* + * For certain engine classes, there are slice and subslice + * level registers requiring steering. We allocate and populate + * these at init time based on hw config add it as an extension + * list at the end of the pre-populated render list. + */ + if (IS_DG2(i915)) + guc_capture_alloc_steered_lists_xe_hpg(guc, xe_lpd_lists, IP_VER(12, 55)); + else if (IS_XEHPSDV(i915)) + guc_capture_alloc_steered_lists_xe_hpg(guc, xe_lpd_lists, IP_VER(12, 50)); + else + guc_capture_alloc_steered_lists_xe_lpd(guc, xe_lpd_lists); + + return xe_lpd_lists; + } + + /* if GuC submission is enabled on a non-POR platform, just use a common baseline */ + return default_lists; +} + +static const char * +__stringify_owner(u32 owner) +{ + switch (owner) { + case GUC_CAPTURE_LIST_INDEX_PF: + return "PF"; + case GUC_CAPTURE_LIST_INDEX_VF: + return "VF"; + default: + return "unknown"; + } + + return ""; +} + +static const char * +__stringify_type(u32 type) +{ + switch (type) { + case GUC_CAPTURE_LIST_TYPE_GLOBAL: + return "Global"; + case GUC_CAPTURE_LIST_TYPE_ENGINE_CLASS: + return "Class"; + case GUC_CAPTURE_LIST_TYPE_ENGINE_INSTANCE: + return "Instance"; + default: + return "unknown"; + } + + return ""; +} + +static const char * +__stringify_engclass(u32 class) +{ + switch (class) { + case GUC_RENDER_CLASS: + return "Render"; + case GUC_VIDEO_CLASS: + return "Video"; + case GUC_VIDEOENHANCE_CLASS: + return "VideoEnhance"; + case GUC_BLITTER_CLASS: + return "Blitter"; + case GUC_COMPUTE_CLASS: + return "Compute"; + default: + return "unknown"; + } + + return ""; +} + +static void +guc_capture_warn_with_list_info(struct drm_i915_private *i915, char *msg, + u32 owner, u32 type, u32 classid) +{ + if (type == GUC_CAPTURE_LIST_TYPE_GLOBAL) + drm_dbg(&i915->drm, "GuC-capture: %s for %s %s-Registers.\n", msg, + __stringify_owner(owner), __stringify_type(type)); + else + drm_dbg(&i915->drm, "GuC-capture: %s for %s %s-Registers on %s-Engine\n", msg, + __stringify_owner(owner), __stringify_type(type), + __stringify_engclass(classid)); +} + +static int +guc_capture_list_init(struct intel_guc *guc, u32 owner, u32 type, u32 classid, + struct guc_mmio_reg *ptr, u16 num_entries) +{ + u32 i = 0, j = 0; + struct drm_i915_private *i915 = guc_to_gt(guc)->i915; + const struct __guc_mmio_reg_descr_group *reglists = guc->capture->reglists; + struct __guc_mmio_reg_descr_group *extlists = guc->capture->extlists; + const struct __guc_mmio_reg_descr_group *match; + struct __guc_mmio_reg_descr_group *matchext; + + if (!reglists) + return -ENODEV; + + match = guc_capture_get_one_list(reglists, owner, type, classid); + if (!match) { + guc_capture_warn_with_list_info(i915, "Missing register list init", owner, type, + classid); + return -ENODATA; + } + + for (i = 0; i < num_entries && i < match->num_regs; ++i) { + ptr[i].offset = match->list[i].reg.reg; + ptr[i].value = 0xDEADF00D; + ptr[i].flags = match->list[i].flags; + ptr[i].mask = match->list[i].mask; + } + + matchext = guc_capture_get_one_ext_list(extlists, owner, type, classid); + if (matchext) { + for (i = match->num_regs, j = 0; i < num_entries && + i < (match->num_regs + matchext->num_regs) && + j < matchext->num_regs; ++i, ++j) { + ptr[i].offset = matchext->extlist[j].reg.reg; + ptr[i].value = 0xDEADF00D; + ptr[i].flags = matchext->extlist[j].flags; + ptr[i].mask = matchext->extlist[j].mask; + } + } + if (i < num_entries) + drm_dbg(&i915->drm, "GuC-capture: Init reglist short %d out %d.\n", + (int)i, (int)num_entries); + + return 0; +} + +static int +guc_cap_list_num_regs(struct intel_guc_state_capture *gc, u32 owner, u32 type, u32 classid) +{ + const struct __guc_mmio_reg_descr_group *match; + struct __guc_mmio_reg_descr_group *matchext; + int num_regs; + + match = guc_capture_get_one_list(gc->reglists, owner, type, classid); + if (!match) + return 0; + + num_regs = match->num_regs; + + matchext = guc_capture_get_one_ext_list(gc->extlists, owner, type, classid); + if (matchext) + num_regs += matchext->num_regs; + + return num_regs; +} + +int +intel_guc_capture_getlistsize(struct intel_guc *guc, u32 owner, u32 type, u32 classid, + size_t *size) +{ + struct drm_i915_private *i915 = guc_to_gt(guc)->i915; + struct intel_guc_state_capture *gc = guc->capture; + struct __guc_capture_ads_cache *cache = &gc->ads_cache[owner][type][classid]; + int num_regs; + + if (!gc->reglists) + return -ENODEV; + + if (cache->is_valid) { + *size = cache->size; + return cache->status; + } + + num_regs = guc_cap_list_num_regs(gc, owner, type, classid); + if (!num_regs) { + guc_capture_warn_with_list_info(i915, "Missing register list size", + owner, type, classid); + return -ENODATA; + } + + *size = PAGE_ALIGN((sizeof(struct guc_debug_capture_list)) + + (num_regs * sizeof(struct guc_mmio_reg))); + + return 0; +} + +static void guc_capture_create_prealloc_nodes(struct intel_guc *guc); + +int +intel_guc_capture_getlist(struct intel_guc *guc, u32 owner, u32 type, u32 classid, + void **outptr) +{ + struct intel_guc_state_capture *gc = guc->capture; + struct __guc_capture_ads_cache *cache = &gc->ads_cache[owner][type][classid]; + struct drm_i915_private *i915 = guc_to_gt(guc)->i915; + struct guc_debug_capture_list *listnode; + int ret, num_regs; + u8 *caplist, *tmp; + size_t size = 0; + + if (!gc->reglists) + return -ENODEV; + + if (cache->is_valid) { + *outptr = cache->ptr; + return cache->status; + } + + /* + * ADS population of input registers is a good + * time to pre-allocate cachelist output nodes + */ + guc_capture_create_prealloc_nodes(guc); + + ret = intel_guc_capture_getlistsize(guc, owner, type, classid, &size); + if (ret) { + cache->is_valid = true; + cache->ptr = NULL; + cache->size = 0; + cache->status = ret; + return ret; + } + + caplist = kzalloc(size, GFP_KERNEL); + if (!caplist) { + drm_dbg(&i915->drm, "GuC-capture: failed to alloc cached caplist"); + return -ENOMEM; + } + + /* populate capture list header */ + tmp = caplist; + num_regs = guc_cap_list_num_regs(guc->capture, owner, type, classid); + listnode = (struct guc_debug_capture_list *)tmp; + listnode->header.info = FIELD_PREP(GUC_CAPTURELISTHDR_NUMDESCR, (u32)num_regs); + + /* populate list of register descriptor */ + tmp += sizeof(struct guc_debug_capture_list); + guc_capture_list_init(guc, owner, type, classid, (struct guc_mmio_reg *)tmp, num_regs); + + /* cache this list */ + cache->is_valid = true; + cache->ptr = caplist; + cache->size = size; + cache->status = 0; + + *outptr = caplist; + + return 0; +} + +int +intel_guc_capture_getnullheader(struct intel_guc *guc, + void **outptr, size_t *size) +{ + struct intel_guc_state_capture *gc = guc->capture; + struct drm_i915_private *i915 = guc_to_gt(guc)->i915; + int tmp = sizeof(u32) * 4; + void *null_header; + + if (gc->ads_null_cache) { + *outptr = gc->ads_null_cache; + *size = tmp; + return 0; + } + + null_header = kzalloc(tmp, GFP_KERNEL); + if (!null_header) { + drm_dbg(&i915->drm, "GuC-capture: failed to alloc cached nulllist"); + return -ENOMEM; + } + + gc->ads_null_cache = null_header; + *outptr = null_header; + *size = tmp; + + return 0; +} + +#define GUC_CAPTURE_OVERBUFFER_MULTIPLIER 3 + +int +intel_guc_capture_output_min_size_est(struct intel_guc *guc) +{ + struct intel_gt *gt = guc_to_gt(guc); + struct intel_engine_cs *engine; + enum intel_engine_id id; + int worst_min_size = 0, num_regs = 0; + size_t tmp = 0; + + if (!guc->capture) + return -ENODEV; + + /* + * If every single engine-instance suffered a failure in quick succession but + * were all unrelated, then a burst of multiple error-capture events would dump + * registers for every one engine instance, one at a time. In this case, GuC + * would even dump the global-registers repeatedly. + * + * For each engine instance, there would be 1 x guc_state_capture_group_t output + * followed by 3 x guc_state_capture_t lists. The latter is how the register + * dumps are split across different register types (where the '3' are global vs class + * vs instance). Finally, let's multiply the whole thing by 3x (just so we are + * not limited to just 1 round of data in a worst case full register dump log) + * + * NOTE: intel_guc_log that allocates the log buffer would round this size up to + * a power of two. + */ + + for_each_engine(engine, gt, id) { + worst_min_size += sizeof(struct guc_state_capture_group_header_t) + + (3 * sizeof(struct guc_state_capture_header_t)); + + if (!intel_guc_capture_getlistsize(guc, 0, GUC_CAPTURE_LIST_TYPE_GLOBAL, 0, &tmp)) + num_regs += tmp; + + if (!intel_guc_capture_getlistsize(guc, 0, GUC_CAPTURE_LIST_TYPE_ENGINE_CLASS, + engine->class, &tmp)) { + num_regs += tmp; + } + if (!intel_guc_capture_getlistsize(guc, 0, GUC_CAPTURE_LIST_TYPE_ENGINE_INSTANCE, + engine->class, &tmp)) { + num_regs += tmp; + } + } + + worst_min_size += (num_regs * sizeof(struct guc_mmio_reg)); + + return (worst_min_size * GUC_CAPTURE_OVERBUFFER_MULTIPLIER); +} + +/* + * KMD Init time flows: + * -------------------- + * --> alloc A: GuC input capture regs lists (registered to GuC via ADS). + * intel_guc_ads acquires the register lists by calling + * intel_guc_capture_list_size and intel_guc_capture_list_get 'n' times, + * where n = 1 for global-reg-list + + * num_engine_classes for class-reg-list + + * num_engine_classes for instance-reg-list + * (since all instances of the same engine-class type + * have an identical engine-instance register-list). + * ADS module also calls separately for PF vs VF. + * + * --> alloc B: GuC output capture buf (registered via guc_init_params(log_param)) + * Size = #define CAPTURE_BUFFER_SIZE (warns if on too-small) + * Note2: 'x 3' to hold multiple capture groups + * + * GUC Runtime notify capture: + * -------------------------- + * --> G2H STATE_CAPTURE_NOTIFICATION + * L--> intel_guc_capture_process + * L--> Loop through B (head..tail) and for each engine instance's + * err-state-captured register-list we find, we alloc 'C': + * --> alloc C: A capture-output-node structure that includes misc capture info along + * with 3 register list dumps (global, engine-class and engine-instance) + * This node is created from a pre-allocated list of blank nodes in + * guc->capture->cachelist and populated with the error-capture + * data from GuC and then it's added into guc->capture->outlist linked + * list. This list is used for matchup and printout by i915_gpu_coredump + * and err_print_gt, (when user invokes the error capture sysfs). + * + * GUC --> notify context reset: + * ----------------------------- + * --> G2H CONTEXT RESET + * L--> guc_handle_context_reset --> i915_capture_error_state + * L--> i915_gpu_coredump(..IS_GUC_CAPTURE) --> gt_record_engines + * --> capture_engine(..IS_GUC_CAPTURE) + * L--> intel_guc_capture_get_matching_node is where + * detach C from internal linked list and add it into + * intel_engine_coredump struct (if the context and + * engine of the event notification matches a node + * in the link list). + * + * User Sysfs / Debugfs + * -------------------- + * --> i915_gpu_coredump_copy_to_buffer-> + * L--> err_print_to_sgl --> err_print_gt + * L--> error_print_guc_captures + * L--> intel_guc_capture_print_node prints the + * register lists values of the attached node + * on the error-engine-dump being reported. + * L--> i915_reset_error_state ... -->__i915_gpu_coredump_free + * L--> ... cleanup_gt --> + * L--> intel_guc_capture_free_node returns the + * capture-output-node back to the internal + * cachelist for reuse. + * + */ + +static int guc_capture_buf_cnt(struct __guc_capture_bufstate *buf) +{ + if (buf->wr >= buf->rd) + return (buf->wr - buf->rd); + return (buf->size - buf->rd) + buf->wr; +} + +static int guc_capture_buf_cnt_to_end(struct __guc_capture_bufstate *buf) +{ + if (buf->rd > buf->wr) + return (buf->size - buf->rd); + return (buf->wr - buf->rd); +} + +/* + * GuC's error-capture output is a ring buffer populated in a byte-stream fashion: + * + * The GuC Log buffer region for error-capture is managed like a ring buffer. + * The GuC firmware dumps error capture logs into this ring in a byte-stream flow. + * Additionally, as per the current and foreseeable future, all packed error- + * capture output structures are dword aligned. + * + * That said, if the GuC firmware is in the midst of writing a structure that is larger + * than one dword but the tail end of the err-capture buffer-region has lesser space left, + * we would need to extract that structure one dword at a time straddled across the end, + * onto the start of the ring. + * + * Below function, guc_capture_log_remove_dw is a helper for that. All callers of this + * function would typically do a straight-up memcpy from the ring contents and will only + * call this helper if their structure-extraction is straddling across the end of the + * ring. GuC firmware does not add any padding. The reason for the no-padding is to ease + * scalability for future expansion of output data types without requiring a redesign + * of the flow controls. + */ +static int +guc_capture_log_remove_dw(struct intel_guc *guc, struct __guc_capture_bufstate *buf, + u32 *dw) +{ + struct drm_i915_private *i915 = guc_to_gt(guc)->i915; + int tries = 2; + int avail = 0; + u32 *src_data; + + if (!guc_capture_buf_cnt(buf)) + return 0; + + while (tries--) { + avail = guc_capture_buf_cnt_to_end(buf); + if (avail >= sizeof(u32)) { + src_data = (u32 *)(buf->data + buf->rd); + *dw = *src_data; + buf->rd += 4; + return 4; + } + if (avail) + drm_dbg(&i915->drm, "GuC-Cap-Logs not dword aligned, skipping.\n"); + buf->rd = 0; + } + + return 0; +} + +static bool +guc_capture_data_extracted(struct __guc_capture_bufstate *b, + int size, void *dest) +{ + if (guc_capture_buf_cnt_to_end(b) >= size) { + memcpy(dest, (b->data + b->rd), size); + b->rd += size; + return true; + } + return false; +} + +static int +guc_capture_log_get_group_hdr(struct intel_guc *guc, struct __guc_capture_bufstate *buf, + struct guc_state_capture_group_header_t *ghdr) +{ + int read = 0; + int fullsize = sizeof(struct guc_state_capture_group_header_t); + + if (fullsize > guc_capture_buf_cnt(buf)) + return -1; + + if (guc_capture_data_extracted(buf, fullsize, (void *)ghdr)) + return 0; + + read += guc_capture_log_remove_dw(guc, buf, &ghdr->owner); + read += guc_capture_log_remove_dw(guc, buf, &ghdr->info); + if (read != fullsize) + return -1; + + return 0; +} + +static int +guc_capture_log_get_data_hdr(struct intel_guc *guc, struct __guc_capture_bufstate *buf, + struct guc_state_capture_header_t *hdr) +{ + int read = 0; + int fullsize = sizeof(struct guc_state_capture_header_t); + + if (fullsize > guc_capture_buf_cnt(buf)) + return -1; + + if (guc_capture_data_extracted(buf, fullsize, (void *)hdr)) + return 0; + + read += guc_capture_log_remove_dw(guc, buf, &hdr->owner); + read += guc_capture_log_remove_dw(guc, buf, &hdr->info); + read += guc_capture_log_remove_dw(guc, buf, &hdr->lrca); + read += guc_capture_log_remove_dw(guc, buf, &hdr->guc_id); + read += guc_capture_log_remove_dw(guc, buf, &hdr->num_mmios); + if (read != fullsize) + return -1; + + return 0; +} + +static int +guc_capture_log_get_register(struct intel_guc *guc, struct __guc_capture_bufstate *buf, + struct guc_mmio_reg *reg) +{ + int read = 0; + int fullsize = sizeof(struct guc_mmio_reg); + + if (fullsize > guc_capture_buf_cnt(buf)) + return -1; + + if (guc_capture_data_extracted(buf, fullsize, (void *)reg)) + return 0; + + read += guc_capture_log_remove_dw(guc, buf, ®->offset); + read += guc_capture_log_remove_dw(guc, buf, ®->value); + read += guc_capture_log_remove_dw(guc, buf, ®->flags); + read += guc_capture_log_remove_dw(guc, buf, ®->mask); + if (read != fullsize) + return -1; + + return 0; +} + +static void +guc_capture_delete_one_node(struct intel_guc *guc, struct __guc_capture_parsed_output *node) +{ + int i; + + for (i = 0; i < GUC_CAPTURE_LIST_TYPE_MAX; ++i) + kfree(node->reginfo[i].regs); + list_del(&node->link); + kfree(node); +} + +static void +guc_capture_delete_prealloc_nodes(struct intel_guc *guc) +{ + struct __guc_capture_parsed_output *n, *ntmp; + + /* + * NOTE: At the end of driver operation, we must assume that we + * have prealloc nodes in both the cachelist as well as outlist + * if unclaimed error capture events occurred prior to shutdown. + */ + list_for_each_entry_safe(n, ntmp, &guc->capture->outlist, link) + guc_capture_delete_one_node(guc, n); + + list_for_each_entry_safe(n, ntmp, &guc->capture->cachelist, link) + guc_capture_delete_one_node(guc, n); +} + +static void +guc_capture_add_node_to_list(struct __guc_capture_parsed_output *node, + struct list_head *list) +{ + list_add_tail(&node->link, list); +} + +static void +guc_capture_add_node_to_outlist(struct intel_guc_state_capture *gc, + struct __guc_capture_parsed_output *node) +{ + guc_capture_add_node_to_list(node, &gc->outlist); +} + +static void +guc_capture_add_node_to_cachelist(struct intel_guc_state_capture *gc, + struct __guc_capture_parsed_output *node) +{ + guc_capture_add_node_to_list(node, &gc->cachelist); +} + +static void +guc_capture_init_node(struct intel_guc *guc, struct __guc_capture_parsed_output *node) +{ + struct guc_mmio_reg *tmp[GUC_CAPTURE_LIST_TYPE_MAX]; + int i; + + for (i = 0; i < GUC_CAPTURE_LIST_TYPE_MAX; ++i) { + tmp[i] = node->reginfo[i].regs; + memset(tmp[i], 0, sizeof(struct guc_mmio_reg) * + guc->capture->max_mmio_per_node); + } + memset(node, 0, sizeof(*node)); + for (i = 0; i < GUC_CAPTURE_LIST_TYPE_MAX; ++i) + node->reginfo[i].regs = tmp[i]; + + INIT_LIST_HEAD(&node->link); +} + +static struct __guc_capture_parsed_output * +guc_capture_get_prealloc_node(struct intel_guc *guc) +{ + struct __guc_capture_parsed_output *found = NULL; + + if (!list_empty(&guc->capture->cachelist)) { + struct __guc_capture_parsed_output *n, *ntmp; + + /* get first avail node from the cache list */ + list_for_each_entry_safe(n, ntmp, &guc->capture->cachelist, link) { + found = n; + list_del(&n->link); + break; + } + } else { + struct __guc_capture_parsed_output *n, *ntmp; + + /* traverse down and steal back the oldest node already allocated */ + list_for_each_entry_safe(n, ntmp, &guc->capture->outlist, link) { + found = n; + } + if (found) + list_del(&found->link); + } + if (found) + guc_capture_init_node(guc, found); + + return found; +} + +static struct __guc_capture_parsed_output * +guc_capture_alloc_one_node(struct intel_guc *guc) +{ + struct __guc_capture_parsed_output *new; + int i; + + new = kzalloc(sizeof(*new), GFP_KERNEL); + if (!new) + return NULL; + + for (i = 0; i < GUC_CAPTURE_LIST_TYPE_MAX; ++i) { + new->reginfo[i].regs = kcalloc(guc->capture->max_mmio_per_node, + sizeof(struct guc_mmio_reg), GFP_KERNEL); + if (!new->reginfo[i].regs) { + while (i) + kfree(new->reginfo[--i].regs); + kfree(new); + return NULL; + } + } + guc_capture_init_node(guc, new); + + return new; +} + +static struct __guc_capture_parsed_output * +guc_capture_clone_node(struct intel_guc *guc, struct __guc_capture_parsed_output *original, + u32 keep_reglist_mask) +{ + struct __guc_capture_parsed_output *new; + int i; + + new = guc_capture_get_prealloc_node(guc); + if (!new) + return NULL; + if (!original) + return new; + + new->is_partial = original->is_partial; + + /* copy reg-lists that we want to clone */ + for (i = 0; i < GUC_CAPTURE_LIST_TYPE_MAX; ++i) { + if (keep_reglist_mask & BIT(i)) { + GEM_BUG_ON(original->reginfo[i].num_regs > + guc->capture->max_mmio_per_node); + + memcpy(new->reginfo[i].regs, original->reginfo[i].regs, + original->reginfo[i].num_regs * sizeof(struct guc_mmio_reg)); + + new->reginfo[i].num_regs = original->reginfo[i].num_regs; + new->reginfo[i].vfid = original->reginfo[i].vfid; + + if (i == GUC_CAPTURE_LIST_TYPE_ENGINE_CLASS) { + new->eng_class = original->eng_class; + } else if (i == GUC_CAPTURE_LIST_TYPE_ENGINE_INSTANCE) { + new->eng_inst = original->eng_inst; + new->guc_id = original->guc_id; + new->lrca = original->lrca; + } + } + } + + return new; +} + +static void +__guc_capture_create_prealloc_nodes(struct intel_guc *guc) +{ + struct __guc_capture_parsed_output *node = NULL; + struct drm_i915_private *i915 = guc_to_gt(guc)->i915; + int i; + + for (i = 0; i < PREALLOC_NODES_MAX_COUNT; ++i) { + node = guc_capture_alloc_one_node(guc); + if (!node) { + drm_warn(&i915->drm, "GuC Capture pre-alloc-cache failure\n"); + /* dont free the priors, use what we got and cleanup at shutdown */ + return; + } + guc_capture_add_node_to_cachelist(guc->capture, node); + } +} + +static int +guc_get_max_reglist_count(struct intel_guc *guc) +{ + int i, j, k, tmp, maxregcount = 0; + + for (i = 0; i < GUC_CAPTURE_LIST_INDEX_MAX; ++i) { + for (j = 0; j < GUC_CAPTURE_LIST_TYPE_MAX; ++j) { + for (k = 0; k < GUC_MAX_ENGINE_CLASSES; ++k) { + if (j == GUC_CAPTURE_LIST_TYPE_GLOBAL && k > 0) + continue; + + tmp = guc_cap_list_num_regs(guc->capture, i, j, k); + if (tmp > maxregcount) + maxregcount = tmp; + } + } + } + if (!maxregcount) + maxregcount = PREALLOC_NODES_DEFAULT_NUMREGS; + + return maxregcount; +} + +static void +guc_capture_create_prealloc_nodes(struct intel_guc *guc) +{ + /* skip if we've already done the pre-alloc */ + if (guc->capture->max_mmio_per_node) + return; + + guc->capture->max_mmio_per_node = guc_get_max_reglist_count(guc); + __guc_capture_create_prealloc_nodes(guc); +} + +static int +guc_capture_extract_reglists(struct intel_guc *guc, struct __guc_capture_bufstate *buf) +{ + struct drm_i915_private *i915 = guc_to_gt(guc)->i915; + struct guc_state_capture_group_header_t ghdr = {0}; + struct guc_state_capture_header_t hdr = {0}; + struct __guc_capture_parsed_output *node = NULL; + struct guc_mmio_reg *regs = NULL; + int i, numlists, numregs, ret = 0; + enum guc_capture_type datatype; + struct guc_mmio_reg tmp; + bool is_partial = false; + + i = guc_capture_buf_cnt(buf); + if (!i) + return -ENODATA; + if (i % sizeof(u32)) { + drm_warn(&i915->drm, "GuC Capture new entries unaligned\n"); + ret = -EIO; + goto bailout; + } + + /* first get the capture group header */ + if (guc_capture_log_get_group_hdr(guc, buf, &ghdr)) { + ret = -EIO; + goto bailout; + } + /* + * we would typically expect a layout as below where n would be expected to be + * anywhere between 3 to n where n > 3 if we are seeing multiple dependent engine + * instances being reset together. + * ____________________________________________ + * | Capture Group | + * | ________________________________________ | + * | | Capture Group Header: | | + * | | - num_captures = 5 | | + * | |______________________________________| | + * | ________________________________________ | + * | | Capture1: | | + * | | Hdr: GLOBAL, numregs=a | | + * | | ____________________________________ | | + * | | | Reglist | | | + * | | | - reg1, reg2, ... rega | | | + * | | |__________________________________| | | + * | |______________________________________| | + * | ________________________________________ | + * | | Capture2: | | + * | | Hdr: CLASS=RENDER/COMPUTE, numregs=b| | + * | | ____________________________________ | | + * | | | Reglist | | | + * | | | - reg1, reg2, ... regb | | | + * | | |__________________________________| | | + * | |______________________________________| | + * | ________________________________________ | + * | | Capture3: | | + * | | Hdr: INSTANCE=RCS, numregs=c | | + * | | ____________________________________ | | + * | | | Reglist | | | + * | | | - reg1, reg2, ... regc | | | + * | | |__________________________________| | | + * | |______________________________________| | + * | ________________________________________ | + * | | Capture4: | | + * | | Hdr: CLASS=RENDER/COMPUTE, numregs=d| | + * | | ____________________________________ | | + * | | | Reglist | | | + * | | | - reg1, reg2, ... regd | | | + * | | |__________________________________| | | + * | |______________________________________| | + * | ________________________________________ | + * | | Capture5: | | + * | | Hdr: INSTANCE=CCS0, numregs=e | | + * | | ____________________________________ | | + * | | | Reglist | | | + * | | | - reg1, reg2, ... rege | | | + * | | |__________________________________| | | + * | |______________________________________| | + * |__________________________________________| + */ + is_partial = FIELD_GET(CAP_GRP_HDR_CAPTURE_TYPE, ghdr.info); + numlists = FIELD_GET(CAP_GRP_HDR_NUM_CAPTURES, ghdr.info); + + while (numlists--) { + if (guc_capture_log_get_data_hdr(guc, buf, &hdr)) { + ret = -EIO; + break; + } + + datatype = FIELD_GET(CAP_HDR_CAPTURE_TYPE, hdr.info); + if (datatype > GUC_CAPTURE_LIST_TYPE_ENGINE_INSTANCE) { + /* unknown capture type - skip over to next capture set */ + numregs = FIELD_GET(CAP_HDR_NUM_MMIOS, hdr.num_mmios); + while (numregs--) { + if (guc_capture_log_get_register(guc, buf, &tmp)) { + ret = -EIO; + break; + } + } + continue; + } else if (node) { + /* + * Based on the current capture type and what we have so far, + * decide if we should add the current node into the internal + * linked list for match-up when i915_gpu_coredump calls later + * (and alloc a blank node for the next set of reglists) + * or continue with the same node or clone the current node + * but only retain the global or class registers (such as the + * case of dependent engine resets). + */ + if (datatype == GUC_CAPTURE_LIST_TYPE_GLOBAL) { + guc_capture_add_node_to_outlist(guc->capture, node); + node = NULL; + } else if (datatype == GUC_CAPTURE_LIST_TYPE_ENGINE_CLASS && + node->reginfo[GUC_CAPTURE_LIST_TYPE_ENGINE_CLASS].num_regs) { + /* Add to list, clone node and duplicate global list */ + guc_capture_add_node_to_outlist(guc->capture, node); + node = guc_capture_clone_node(guc, node, + GCAP_PARSED_REGLIST_INDEX_GLOBAL); + } else if (datatype == GUC_CAPTURE_LIST_TYPE_ENGINE_INSTANCE && + node->reginfo[GUC_CAPTURE_LIST_TYPE_ENGINE_INSTANCE].num_regs) { + /* Add to list, clone node and duplicate global + class lists */ + guc_capture_add_node_to_outlist(guc->capture, node); + node = guc_capture_clone_node(guc, node, + (GCAP_PARSED_REGLIST_INDEX_GLOBAL | + GCAP_PARSED_REGLIST_INDEX_ENGCLASS)); + } + } + + if (!node) { + node = guc_capture_get_prealloc_node(guc); + if (!node) { + ret = -ENOMEM; + break; + } + if (datatype != GUC_CAPTURE_LIST_TYPE_GLOBAL) + drm_dbg(&i915->drm, "GuC Capture missing global dump: %08x!\n", + datatype); + } + node->is_partial = is_partial; + node->reginfo[datatype].vfid = FIELD_GET(CAP_HDR_CAPTURE_VFID, hdr.owner); + switch (datatype) { + case GUC_CAPTURE_LIST_TYPE_ENGINE_INSTANCE: + node->eng_class = FIELD_GET(CAP_HDR_ENGINE_CLASS, hdr.info); + node->eng_inst = FIELD_GET(CAP_HDR_ENGINE_INSTANCE, hdr.info); + node->lrca = hdr.lrca; + node->guc_id = hdr.guc_id; + break; + case GUC_CAPTURE_LIST_TYPE_ENGINE_CLASS: + node->eng_class = FIELD_GET(CAP_HDR_ENGINE_CLASS, hdr.info); + break; + default: + break; + } + + numregs = FIELD_GET(CAP_HDR_NUM_MMIOS, hdr.num_mmios); + if (numregs > guc->capture->max_mmio_per_node) { + drm_dbg(&i915->drm, "GuC Capture list extraction clipped by prealloc!\n"); + numregs = guc->capture->max_mmio_per_node; + } + node->reginfo[datatype].num_regs = numregs; + regs = node->reginfo[datatype].regs; + i = 0; + while (numregs--) { + if (guc_capture_log_get_register(guc, buf, ®s[i++])) { + ret = -EIO; + break; + } + } + } + +bailout: + if (node) { + /* If we have data, add to linked list for match-up when i915_gpu_coredump calls */ + for (i = GUC_CAPTURE_LIST_TYPE_GLOBAL; i < GUC_CAPTURE_LIST_TYPE_MAX; ++i) { + if (node->reginfo[i].regs) { + guc_capture_add_node_to_outlist(guc->capture, node); + node = NULL; + break; + } + } + if (node) /* else return it back to cache list */ + guc_capture_add_node_to_cachelist(guc->capture, node); + } + return ret; +} + +static int __guc_capture_flushlog_complete(struct intel_guc *guc) +{ + u32 action[] = { + INTEL_GUC_ACTION_LOG_BUFFER_FILE_FLUSH_COMPLETE, + GUC_CAPTURE_LOG_BUFFER + }; + + return intel_guc_send(guc, action, ARRAY_SIZE(action)); +} + +static void __guc_capture_process_output(struct intel_guc *guc) +{ + unsigned int buffer_size, read_offset, write_offset, full_count; + struct intel_uc *uc = container_of(guc, typeof(*uc), guc); + struct drm_i915_private *i915 = guc_to_gt(guc)->i915; + struct guc_log_buffer_state log_buf_state_local; + struct guc_log_buffer_state *log_buf_state; + struct __guc_capture_bufstate buf; + void *src_data = NULL; + bool new_overflow; + int ret; + + log_buf_state = guc->log.buf_addr + + (sizeof(struct guc_log_buffer_state) * GUC_CAPTURE_LOG_BUFFER); + src_data = guc->log.buf_addr + intel_guc_get_log_buffer_offset(GUC_CAPTURE_LOG_BUFFER); + + /* + * Make a copy of the state structure, inside GuC log buffer + * (which is uncached mapped), on the stack to avoid reading + * from it multiple times. + */ + memcpy(&log_buf_state_local, log_buf_state, sizeof(struct guc_log_buffer_state)); + buffer_size = intel_guc_get_log_buffer_size(GUC_CAPTURE_LOG_BUFFER); + read_offset = log_buf_state_local.read_ptr; + write_offset = log_buf_state_local.sampled_write_ptr; + full_count = log_buf_state_local.buffer_full_cnt; + + /* Bookkeeping stuff */ + guc->log.stats[GUC_CAPTURE_LOG_BUFFER].flush += log_buf_state_local.flush_to_file; + new_overflow = intel_guc_check_log_buf_overflow(&guc->log, GUC_CAPTURE_LOG_BUFFER, + full_count); + + /* Now copy the actual logs. */ + if (unlikely(new_overflow)) { + /* copy the whole buffer in case of overflow */ + read_offset = 0; + write_offset = buffer_size; + } else if (unlikely((read_offset > buffer_size) || + (write_offset > buffer_size))) { + drm_err(&i915->drm, "invalid GuC log capture buffer state!\n"); + /* copy whole buffer as offsets are unreliable */ + read_offset = 0; + write_offset = buffer_size; + } + + buf.size = buffer_size; + buf.rd = read_offset; + buf.wr = write_offset; + buf.data = src_data; + + if (!uc->reset_in_progress) { + do { + ret = guc_capture_extract_reglists(guc, &buf); + } while (ret >= 0); + } + + /* Update the state of log buffer err-cap state */ + log_buf_state->read_ptr = write_offset; + log_buf_state->flush_to_file = 0; + __guc_capture_flushlog_complete(guc); +} + +#if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR) + +static const char * +guc_capture_reg_to_str(const struct intel_guc *guc, u32 owner, u32 type, + u32 class, u32 id, u32 offset, u32 *is_ext) +{ + const struct __guc_mmio_reg_descr_group *reglists = guc->capture->reglists; + struct __guc_mmio_reg_descr_group *extlists = guc->capture->extlists; + const struct __guc_mmio_reg_descr_group *match; + struct __guc_mmio_reg_descr_group *matchext; + int j; + + *is_ext = 0; + if (!reglists) + return NULL; + + match = guc_capture_get_one_list(reglists, owner, type, id); + if (!match) + return NULL; + + for (j = 0; j < match->num_regs; ++j) { + if (offset == match->list[j].reg.reg) + return match->list[j].regname; + } + if (extlists) { + matchext = guc_capture_get_one_ext_list(extlists, owner, type, id); + if (!matchext) + return NULL; + for (j = 0; j < matchext->num_regs; ++j) { + if (offset == matchext->extlist[j].reg.reg) { + *is_ext = 1; + return matchext->extlist[j].regname; + } + } + } + + return NULL; +} + +#ifdef CONFIG_DRM_I915_DEBUG_GUC +#define __out(a, ...) \ + do { \ + drm_warn((&(a)->i915->drm), __VA_ARGS__); \ + i915_error_printf((a), __VA_ARGS__); \ + } while (0) +#else +#define __out(a, ...) \ + i915_error_printf(a, __VA_ARGS__) +#endif + +#define GCAP_PRINT_INTEL_ENG_INFO(ebuf, eng) \ + do { \ + __out(ebuf, " i915-Eng-Name: %s command stream\n", \ + (eng)->name); \ + __out(ebuf, " i915-Eng-Inst-Class: 0x%02x\n", (eng)->class); \ + __out(ebuf, " i915-Eng-Inst-Id: 0x%02x\n", (eng)->instance); \ + __out(ebuf, " i915-Eng-LogicalMask: 0x%08x\n", \ + (eng)->logical_mask); \ + } while (0) + +#define GCAP_PRINT_GUC_INST_INFO(ebuf, node) \ + do { \ + __out(ebuf, " GuC-Engine-Inst-Id: 0x%08x\n", \ + (node)->eng_inst); \ + __out(ebuf, " GuC-Context-Id: 0x%08x\n", (node)->guc_id); \ + __out(ebuf, " LRCA: 0x%08x\n", (node)->lrca); \ + } while (0) + +int intel_guc_capture_print_engine_node(struct drm_i915_error_state_buf *ebuf, + const struct intel_engine_coredump *ee) +{ + const char *grptype[GUC_STATE_CAPTURE_GROUP_TYPE_MAX] = { + "full-capture", + "partial-capture" + }; + const char *datatype[GUC_CAPTURE_LIST_TYPE_MAX] = { + "Global", + "Engine-Class", + "Engine-Instance" + }; + struct intel_guc_state_capture *cap; + struct __guc_capture_parsed_output *node; + struct intel_engine_cs *eng; + struct guc_mmio_reg *regs; + struct intel_guc *guc; + const char *str; + int numregs, i, j; + u32 is_ext; + + if (!ebuf || !ee) + return -EINVAL; + cap = ee->capture; + if (!cap || !ee->engine) + return -ENODEV; + + guc = &ee->engine->gt->uc.guc; + + __out(ebuf, "global --- GuC Error Capture on %s command stream:\n", + ee->engine->name); + + node = ee->guc_capture_node; + if (!node) { + __out(ebuf, " No matching ee-node\n"); + return 0; + } + + __out(ebuf, "Coverage: %s\n", grptype[node->is_partial]); + + for (i = GUC_CAPTURE_LIST_TYPE_GLOBAL; i < GUC_CAPTURE_LIST_TYPE_MAX; ++i) { + __out(ebuf, " RegListType: %s\n", + datatype[i % GUC_CAPTURE_LIST_TYPE_MAX]); + __out(ebuf, " Owner-Id: %d\n", node->reginfo[i].vfid); + + switch (i) { + case GUC_CAPTURE_LIST_TYPE_GLOBAL: + default: + break; + case GUC_CAPTURE_LIST_TYPE_ENGINE_CLASS: + __out(ebuf, " GuC-Eng-Class: %d\n", node->eng_class); + __out(ebuf, " i915-Eng-Class: %d\n", + guc_class_to_engine_class(node->eng_class)); + break; + case GUC_CAPTURE_LIST_TYPE_ENGINE_INSTANCE: + eng = intel_guc_lookup_engine(guc, node->eng_class, node->eng_inst); + if (eng) + GCAP_PRINT_INTEL_ENG_INFO(ebuf, eng); + else + __out(ebuf, " i915-Eng-Lookup Fail!\n"); + GCAP_PRINT_GUC_INST_INFO(ebuf, node); + break; + } + + numregs = node->reginfo[i].num_regs; + __out(ebuf, " NumRegs: %d\n", numregs); + j = 0; + while (numregs--) { + regs = node->reginfo[i].regs; + str = guc_capture_reg_to_str(guc, GUC_CAPTURE_LIST_INDEX_PF, i, + node->eng_class, 0, regs[j].offset, &is_ext); + if (!str) + __out(ebuf, " REG-0x%08x", regs[j].offset); + else + __out(ebuf, " %s", str); + if (is_ext) + __out(ebuf, "[%ld][%ld]", + FIELD_GET(GUC_REGSET_STEERING_GROUP, regs[j].flags), + FIELD_GET(GUC_REGSET_STEERING_INSTANCE, regs[j].flags)); + __out(ebuf, ": 0x%08x\n", regs[j].value); + ++j; + } + } + return 0; +} + +#endif //CONFIG_DRM_I915_CAPTURE_ERROR + +void intel_guc_capture_free_node(struct intel_engine_coredump *ee) +{ + if (!ee || !ee->guc_capture_node) + return; + + guc_capture_add_node_to_cachelist(ee->capture, ee->guc_capture_node); + ee->capture = NULL; + ee->guc_capture_node = NULL; +} + +void intel_guc_capture_get_matching_node(struct intel_gt *gt, + struct intel_engine_coredump *ee, + struct intel_context *ce) +{ + struct __guc_capture_parsed_output *n, *ntmp; + struct drm_i915_private *i915; + struct intel_guc *guc; + + if (!gt || !ee || !ce) + return; + + i915 = gt->i915; + guc = >->uc.guc; + if (!guc->capture) + return; + + GEM_BUG_ON(ee->guc_capture_node); + /* + * Look for a matching GuC reported error capture node from + * the internal output link-list based on lrca, guc-id and engine + * identification. + */ + list_for_each_entry_safe(n, ntmp, &guc->capture->outlist, link) { + if (n->eng_inst == GUC_ID_TO_ENGINE_INSTANCE(ee->engine->guc_id) && + n->eng_class == GUC_ID_TO_ENGINE_CLASS(ee->engine->guc_id) && + n->guc_id && n->guc_id == ce->guc_id.id && + (n->lrca & CTX_GTT_ADDRESS_MASK) && (n->lrca & CTX_GTT_ADDRESS_MASK) == + (ce->lrc.lrca & CTX_GTT_ADDRESS_MASK)) { + list_del(&n->link); + ee->guc_capture_node = n; + ee->capture = guc->capture; + return; + } + } + drm_dbg(&i915->drm, "GuC capture can't match ee to node\n"); +} + +void intel_guc_capture_process(struct intel_guc *guc) +{ + if (guc->capture) + __guc_capture_process_output(guc); +} + +static void +guc_capture_free_ads_cache(struct intel_guc_state_capture *gc) +{ + int i, j, k; + struct __guc_capture_ads_cache *cache; + + for (i = 0; i < GUC_CAPTURE_LIST_INDEX_MAX; ++i) { + for (j = 0; j < GUC_CAPTURE_LIST_TYPE_MAX; ++j) { + for (k = 0; k < GUC_MAX_ENGINE_CLASSES; ++k) { + cache = &gc->ads_cache[i][j][k]; + if (cache->is_valid) + kfree(cache->ptr); + } + } + } + kfree(gc->ads_null_cache); +} + +void intel_guc_capture_destroy(struct intel_guc *guc) +{ + if (!guc->capture) + return; + + guc_capture_free_ads_cache(guc->capture); + + guc_capture_delete_prealloc_nodes(guc); + + guc_capture_free_extlists(guc->capture->extlists); + kfree(guc->capture->extlists); + + kfree(guc->capture); + guc->capture = NULL; +} + +int intel_guc_capture_init(struct intel_guc *guc) +{ + guc->capture = kzalloc(sizeof(*guc->capture), GFP_KERNEL); + if (!guc->capture) + return -ENOMEM; + + guc->capture->reglists = guc_capture_get_device_reglist(guc); + + INIT_LIST_HEAD(&guc->capture->outlist); + INIT_LIST_HEAD(&guc->capture->cachelist); + + return 0; +} diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.h new file mode 100644 index 000000000000..d3d7bd0b6db6 --- /dev/null +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.h @@ -0,0 +1,33 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright © 2021-2021 Intel Corporation + */ + +#ifndef _INTEL_GUC_CAPTURE_H +#define _INTEL_GUC_CAPTURE_H + +#include <linux/types.h> + +struct drm_i915_error_state_buf; +struct guc_gt_system_info; +struct intel_engine_coredump; +struct intel_context; +struct intel_gt; +struct intel_guc; + +void intel_guc_capture_free_node(struct intel_engine_coredump *ee); +int intel_guc_capture_print_engine_node(struct drm_i915_error_state_buf *m, + const struct intel_engine_coredump *ee); +void intel_guc_capture_get_matching_node(struct intel_gt *gt, struct intel_engine_coredump *ee, + struct intel_context *ce); +void intel_guc_capture_process(struct intel_guc *guc); +int intel_guc_capture_output_min_size_est(struct intel_guc *guc); +int intel_guc_capture_getlist(struct intel_guc *guc, u32 owner, u32 type, u32 classid, + void **outptr); +int intel_guc_capture_getlistsize(struct intel_guc *guc, u32 owner, u32 type, u32 classid, + size_t *size); +int intel_guc_capture_getnullheader(struct intel_guc *guc, void **outptr, size_t *size); +void intel_guc_capture_destroy(struct intel_guc *guc); +int intel_guc_capture_init(struct intel_guc *guc); + +#endif /* _INTEL_GUC_CAPTURE_H */ diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h index 4b300b6cc0f9..42cb7a9a6199 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h @@ -32,8 +32,8 @@ #define GUC_CLIENT_PRIORITY_NORMAL 3 #define GUC_CLIENT_PRIORITY_NUM 4 -#define GUC_MAX_LRC_DESCRIPTORS 65535 -#define GUC_INVALID_LRC_ID GUC_MAX_LRC_DESCRIPTORS +#define GUC_MAX_CONTEXT_ID 65535 +#define GUC_INVALID_CONTEXT_ID GUC_MAX_CONTEXT_ID #define GUC_RENDER_ENGINE 0 #define GUC_VIDEO_ENGINE 1 @@ -98,7 +98,13 @@ #define GUC_LOG_BUF_ADDR_SHIFT 12 #define GUC_CTL_WA 1 -#define GUC_WA_POLLCS BIT(18) +#define GUC_WA_GAM_CREDITS BIT(10) +#define GUC_WA_DUAL_QUEUE BIT(11) +#define GUC_WA_RCS_RESET_BEFORE_RC6 BIT(13) +#define GUC_WA_CONTEXT_ISOLATION BIT(15) +#define GUC_WA_PRE_PARSER BIT(14) +#define GUC_WA_HOLD_CCS_SWITCHOUT BIT(17) +#define GUC_WA_POLLCS BIT(18) #define GUC_CTL_FEATURE 2 #define GUC_CTL_ENABLE_SLPC BIT(2) @@ -197,54 +203,45 @@ struct guc_wq_item { u32 fence_id; } __packed; -struct guc_process_desc { - u32 stage_id; - u64 db_base_addr; +struct guc_sched_wq_desc { u32 head; u32 tail; u32 error_offset; - u64 wq_base_addr; - u32 wq_size_bytes; u32 wq_status; - u32 engine_presence; - u32 priority; - u32 reserved[36]; + u32 reserved[28]; } __packed; +/* Helper for context registration H2G */ +struct guc_ctxt_registration_info { + u32 flags; + u32 context_idx; + u32 engine_class; + u32 engine_submit_mask; + u32 wq_desc_lo; + u32 wq_desc_hi; + u32 wq_base_lo; + u32 wq_base_hi; + u32 wq_size; + u32 hwlrca_lo; + u32 hwlrca_hi; +}; #define CONTEXT_REGISTRATION_FLAG_KMD BIT(0) -#define CONTEXT_POLICY_DEFAULT_EXECUTION_QUANTUM_US 1000000 -#define CONTEXT_POLICY_DEFAULT_PREEMPTION_TIME_US 500000 +/* 32-bit KLV structure as used by policy updates and others */ +struct guc_klv_generic_dw_t { + u32 kl; + u32 value; +} __packed; -/* Preempt to idle on quantum expiry */ -#define CONTEXT_POLICY_FLAG_PREEMPT_TO_IDLE BIT(0) +/* Format of the UPDATE_CONTEXT_POLICIES H2G data packet */ +struct guc_update_context_policy_header { + u32 action; + u32 ctx_id; +} __packed; -/* - * GuC Context registration descriptor. - * FIXME: This is only required to exist during context registration. - * The current 1:1 between guc_lrc_desc and LRCs for the lifetime of the LRC - * is not required. - */ -struct guc_lrc_desc { - u32 hw_context_desc; - u32 slpm_perf_mode_hint; /* SPLC v1 only */ - u32 slpm_freq_hint; - u32 engine_submit_mask; /* In logical space */ - u8 engine_class; - u8 reserved0[3]; - u32 priority; - u32 process_desc; - u32 wq_addr; - u32 wq_size; - u32 context_flags; /* CONTEXT_REGISTRATION_* */ - /* Time for one workload to execute. (in micro seconds) */ - u32 execution_quantum; - /* Time to wait for a preemption request to complete before issuing a - * reset. (in micro seconds). - */ - u32 preemption_timeout; - u32 policy_flags; /* CONTEXT_POLICY_* */ - u32 reserved1[19]; +struct guc_update_context_policy { + struct guc_update_context_policy_header header; + struct guc_klv_generic_dw_t klv[GUC_CONTEXT_POLICIES_KLV_NUM_IDS]; } __packed; #define GUC_POWER_UNSPECIFIED 0 @@ -285,10 +282,13 @@ struct guc_mmio_reg { u32 offset; u32 value; u32 flags; - u32 mask; #define GUC_REGSET_MASKED BIT(0) +#define GUC_REGSET_NEEDS_STEERING BIT(1) #define GUC_REGSET_MASKED_WITH_VALUE BIT(2) #define GUC_REGSET_RESTORE_ONLY BIT(3) +#define GUC_REGSET_STEERING_GROUP GENMASK(15, 12) +#define GUC_REGSET_STEERING_INSTANCE GENMASK(23, 20) + u32 mask; } __packed; /* GuC register sets */ @@ -311,6 +311,14 @@ enum { GUC_CAPTURE_LIST_INDEX_MAX = 2, }; +/*Register-types of GuC capture register lists */ +enum guc_capture_type { + GUC_CAPTURE_LIST_TYPE_GLOBAL = 0, + GUC_CAPTURE_LIST_TYPE_ENGINE_CLASS, + GUC_CAPTURE_LIST_TYPE_ENGINE_INSTANCE, + GUC_CAPTURE_LIST_TYPE_MAX, +}; + /* GuC Additional Data Struct */ struct guc_ads { struct guc_mmio_reg_set reg_state_list[GUC_MAX_ENGINE_CLASSES][GUC_MAX_INSTANCES_PER_CLASS]; diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_hwconfig.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_hwconfig.c new file mode 100644 index 000000000000..79c66b6b51a3 --- /dev/null +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_hwconfig.c @@ -0,0 +1,164 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright © 2022 Intel Corporation + */ + +#include "gt/intel_gt.h" +#include "gt/intel_hwconfig.h" +#include "i915_drv.h" +#include "i915_memcpy.h" + +/* + * GuC has a blob containing hardware configuration information (HWConfig). + * This is formatted as a simple and flexible KLV (Key/Length/Value) table. + * + * For example, a minimal version could be: + * enum device_attr { + * ATTR_SOME_VALUE = 0, + * ATTR_SOME_MASK = 1, + * }; + * + * static const u32 hwconfig[] = { + * ATTR_SOME_VALUE, + * 1, // Value Length in DWords + * 8, // Value + * + * ATTR_SOME_MASK, + * 3, + * 0x00FFFFFFFF, 0xFFFFFFFF, 0xFF000000, + * }; + * + * The attribute ids are defined in a hardware spec. + */ + +static int __guc_action_get_hwconfig(struct intel_guc *guc, + u32 ggtt_offset, u32 ggtt_size) +{ + u32 action[] = { + INTEL_GUC_ACTION_GET_HWCONFIG, + lower_32_bits(ggtt_offset), + upper_32_bits(ggtt_offset), + ggtt_size, + }; + int ret; + + ret = intel_guc_send_mmio(guc, action, ARRAY_SIZE(action), NULL, 0); + if (ret == -ENXIO) + return -ENOENT; + + return ret; +} + +static int guc_hwconfig_discover_size(struct intel_guc *guc, struct intel_hwconfig *hwconfig) +{ + int ret; + + /* + * Sending a query with zero offset and size will return the + * size of the blob. + */ + ret = __guc_action_get_hwconfig(guc, 0, 0); + if (ret < 0) + return ret; + + if (ret == 0) + return -EINVAL; + + hwconfig->size = ret; + return 0; +} + +static int guc_hwconfig_fill_buffer(struct intel_guc *guc, struct intel_hwconfig *hwconfig) +{ + struct i915_vma *vma; + u32 ggtt_offset; + void *vaddr; + int ret; + + GEM_BUG_ON(!hwconfig->size); + + ret = intel_guc_allocate_and_map_vma(guc, hwconfig->size, &vma, &vaddr); + if (ret) + return ret; + + ggtt_offset = intel_guc_ggtt_offset(guc, vma); + + ret = __guc_action_get_hwconfig(guc, ggtt_offset, hwconfig->size); + if (ret >= 0) + memcpy(hwconfig->ptr, vaddr, hwconfig->size); + + i915_vma_unpin_and_release(&vma, I915_VMA_RELEASE_MAP); + + return ret; +} + +static bool has_table(struct drm_i915_private *i915) +{ + if (IS_ALDERLAKE_P(i915)) + return true; + if (IS_DG2(i915)) + return true; + + return false; +} + +/** + * intel_guc_hwconfig_init - Initialize the HWConfig + * + * Retrieve the HWConfig table from the GuC and save it locally. + * It can then be queried on demand by other users later on. + */ +static int guc_hwconfig_init(struct intel_gt *gt) +{ + struct intel_hwconfig *hwconfig = >->info.hwconfig; + struct intel_guc *guc = >->uc.guc; + int ret; + + if (!has_table(gt->i915)) + return 0; + + ret = guc_hwconfig_discover_size(guc, hwconfig); + if (ret) + return ret; + + hwconfig->ptr = kmalloc(hwconfig->size, GFP_KERNEL); + if (!hwconfig->ptr) { + hwconfig->size = 0; + return -ENOMEM; + } + + ret = guc_hwconfig_fill_buffer(guc, hwconfig); + if (ret < 0) { + intel_gt_fini_hwconfig(gt); + return ret; + } + + return 0; +} + +/** + * intel_gt_init_hwconfig - Initialize the HWConfig if available + * + * Retrieve the HWConfig table if available on the current platform. + */ +int intel_gt_init_hwconfig(struct intel_gt *gt) +{ + if (!intel_uc_uses_guc(>->uc)) + return 0; + + return guc_hwconfig_init(gt); +} + +/** + * intel_gt_fini_hwconfig - Finalize the HWConfig + * + * Free up the memory allocation holding the table. + */ +void intel_gt_fini_hwconfig(struct intel_gt *gt) +{ + struct intel_hwconfig *hwconfig = >->info.hwconfig; + + kfree(hwconfig->ptr); + hwconfig->size = 0; + hwconfig->ptr = NULL; +} diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c index a24dc6441872..78d2989fe917 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c @@ -10,9 +10,10 @@ #include "i915_drv.h" #include "i915_irq.h" #include "i915_memcpy.h" +#include "intel_guc_capture.h" #include "intel_guc_log.h" -static void guc_log_capture_logs(struct intel_guc_log *log); +static void guc_log_copy_debuglogs_for_relay(struct intel_guc_log *log); /** * DOC: GuC firmware log @@ -26,7 +27,8 @@ static void guc_log_capture_logs(struct intel_guc_log *log); static int guc_action_flush_log_complete(struct intel_guc *guc) { u32 action[] = { - INTEL_GUC_ACTION_LOG_BUFFER_FILE_FLUSH_COMPLETE + INTEL_GUC_ACTION_LOG_BUFFER_FILE_FLUSH_COMPLETE, + GUC_DEBUG_LOG_BUFFER }; return intel_guc_send(guc, action, ARRAY_SIZE(action)); @@ -137,7 +139,7 @@ static void guc_move_to_next_buf(struct intel_guc_log *log) smp_wmb(); /* All data has been written, so now move the offset of sub buffer. */ - relay_reserve(log->relay.channel, log->vma->obj->base.size); + relay_reserve(log->relay.channel, log->vma->obj->base.size - CAPTURE_BUFFER_SIZE); /* Switch to the next sub buffer */ relay_flush(log->relay.channel); @@ -157,9 +159,9 @@ static void *guc_get_write_buffer(struct intel_guc_log *log) return relay_reserve(log->relay.channel, 0); } -static bool guc_check_log_buf_overflow(struct intel_guc_log *log, - enum guc_log_buffer_type type, - unsigned int full_cnt) +bool intel_guc_check_log_buf_overflow(struct intel_guc_log *log, + enum guc_log_buffer_type type, + unsigned int full_cnt) { unsigned int prev_full_cnt = log->stats[type].sampled_overflow; bool overflow = false; @@ -182,7 +184,7 @@ static bool guc_check_log_buf_overflow(struct intel_guc_log *log, return overflow; } -static unsigned int guc_get_log_buffer_size(enum guc_log_buffer_type type) +unsigned int intel_guc_get_log_buffer_size(enum guc_log_buffer_type type) { switch (type) { case GUC_DEBUG_LOG_BUFFER: @@ -198,7 +200,21 @@ static unsigned int guc_get_log_buffer_size(enum guc_log_buffer_type type) return 0; } -static void guc_read_update_log_buffer(struct intel_guc_log *log) +size_t intel_guc_get_log_buffer_offset(enum guc_log_buffer_type type) +{ + enum guc_log_buffer_type i; + size_t offset = PAGE_SIZE;/* for the log_buffer_states */ + + for (i = GUC_DEBUG_LOG_BUFFER; i < GUC_MAX_LOG_BUFFER; ++i) { + if (i == type) + break; + offset += intel_guc_get_log_buffer_size(i); + } + + return offset; +} + +static void _guc_log_copy_debuglogs_for_relay(struct intel_guc_log *log) { unsigned int buffer_size, read_offset, write_offset, bytes_to_copy, full_cnt; struct guc_log_buffer_state *log_buf_state, *log_buf_snapshot_state; @@ -213,7 +229,8 @@ static void guc_read_update_log_buffer(struct intel_guc_log *log) goto out_unlock; /* Get the pointer to shared GuC log buffer */ - log_buf_state = src_data = log->relay.buf_addr; + src_data = log->buf_addr; + log_buf_state = src_data; /* Get the pointer to local buffer to store the logs */ log_buf_snapshot_state = dst_data = guc_get_write_buffer(log); @@ -223,7 +240,7 @@ static void guc_read_update_log_buffer(struct intel_guc_log *log) * Used rate limited to avoid deluge of messages, logs might be * getting consumed by User at a slow rate. */ - DRM_ERROR_RATELIMITED("no sub-buffer to capture logs\n"); + DRM_ERROR_RATELIMITED("no sub-buffer to copy general logs\n"); log->relay.full_count++; goto out_unlock; @@ -233,7 +250,8 @@ static void guc_read_update_log_buffer(struct intel_guc_log *log) src_data += PAGE_SIZE; dst_data += PAGE_SIZE; - for (type = GUC_DEBUG_LOG_BUFFER; type < GUC_MAX_LOG_BUFFER; type++) { + /* For relay logging, we exclude error state capture */ + for (type = GUC_DEBUG_LOG_BUFFER; type <= GUC_CRASH_DUMP_LOG_BUFFER; type++) { /* * Make a copy of the state structure, inside GuC log buffer * (which is uncached mapped), on the stack to avoid reading @@ -241,14 +259,14 @@ static void guc_read_update_log_buffer(struct intel_guc_log *log) */ memcpy(&log_buf_state_local, log_buf_state, sizeof(struct guc_log_buffer_state)); - buffer_size = guc_get_log_buffer_size(type); + buffer_size = intel_guc_get_log_buffer_size(type); read_offset = log_buf_state_local.read_ptr; write_offset = log_buf_state_local.sampled_write_ptr; full_cnt = log_buf_state_local.buffer_full_cnt; /* Bookkeeping stuff */ log->stats[type].flush += log_buf_state_local.flush_to_file; - new_overflow = guc_check_log_buf_overflow(log, type, full_cnt); + new_overflow = intel_guc_check_log_buf_overflow(log, type, full_cnt); /* Update the state of shared log buffer */ log_buf_state->read_ptr = write_offset; @@ -301,49 +319,43 @@ out_unlock: mutex_unlock(&log->relay.lock); } -static void capture_logs_work(struct work_struct *work) +static void copy_debug_logs_work(struct work_struct *work) { struct intel_guc_log *log = container_of(work, struct intel_guc_log, relay.flush_work); - guc_log_capture_logs(log); + guc_log_copy_debuglogs_for_relay(log); } -static int guc_log_map(struct intel_guc_log *log) +static int guc_log_relay_map(struct intel_guc_log *log) { - void *vaddr; - lockdep_assert_held(&log->relay.lock); - if (!log->vma) + if (!log->vma || !log->buf_addr) return -ENODEV; /* - * Create a WC (Uncached for read) vmalloc mapping of log - * buffer pages, so that we can directly get the data - * (up-to-date) from memory. + * WC vmalloc mapping of log buffer pages was done at + * GuC Log Init time, but lets keep a ref for book-keeping */ - vaddr = i915_gem_object_pin_map_unlocked(log->vma->obj, I915_MAP_WC); - if (IS_ERR(vaddr)) - return PTR_ERR(vaddr); - - log->relay.buf_addr = vaddr; + i915_gem_object_get(log->vma->obj); + log->relay.buf_in_use = true; return 0; } -static void guc_log_unmap(struct intel_guc_log *log) +static void guc_log_relay_unmap(struct intel_guc_log *log) { lockdep_assert_held(&log->relay.lock); - i915_gem_object_unpin_map(log->vma->obj); - log->relay.buf_addr = NULL; + i915_gem_object_put(log->vma->obj); + log->relay.buf_in_use = false; } void intel_guc_log_init_early(struct intel_guc_log *log) { mutex_init(&log->relay.lock); - INIT_WORK(&log->relay.flush_work, capture_logs_work); + INIT_WORK(&log->relay.flush_work, copy_debug_logs_work); log->relay.started = false; } @@ -358,8 +370,11 @@ static int guc_log_relay_create(struct intel_guc_log *log) lockdep_assert_held(&log->relay.lock); GEM_BUG_ON(!log->vma); - /* Keep the size of sub buffers same as shared log buffer */ - subbuf_size = log->vma->size; + /* + * Keep the size of sub buffers same as shared log buffer + * but GuC log-events excludes the error-state-capture logs + */ + subbuf_size = log->vma->size - CAPTURE_BUFFER_SIZE; /* * Store up to 8 snapshots, which is large enough to buffer sufficient @@ -394,13 +409,13 @@ static void guc_log_relay_destroy(struct intel_guc_log *log) log->relay.channel = NULL; } -static void guc_log_capture_logs(struct intel_guc_log *log) +static void guc_log_copy_debuglogs_for_relay(struct intel_guc_log *log) { struct intel_guc *guc = log_to_guc(log); struct drm_i915_private *dev_priv = guc_to_gt(guc)->i915; intel_wakeref_t wakeref; - guc_read_update_log_buffer(log); + _guc_log_copy_debuglogs_for_relay(log); /* * Generally device is expected to be active only at this @@ -440,6 +455,7 @@ int intel_guc_log_create(struct intel_guc_log *log) { struct intel_guc *guc = log_to_guc(log); struct i915_vma *vma; + void *vaddr; u32 guc_log_size; int ret; @@ -447,23 +463,28 @@ int intel_guc_log_create(struct intel_guc_log *log) /* * GuC Log buffer Layout + * (this ordering must follow "enum guc_log_buffer_type" definition) * * +===============================+ 00B - * | Crash dump state header | - * +-------------------------------+ 32B * | Debug state header | + * +-------------------------------+ 32B + * | Crash dump state header | * +-------------------------------+ 64B * | Capture state header | * +-------------------------------+ 96B * | | * +===============================+ PAGE_SIZE (4KB) - * | Crash Dump logs | - * +===============================+ + CRASH_SIZE * | Debug logs | * +===============================+ + DEBUG_SIZE + * | Crash Dump logs | + * +===============================+ + CRASH_SIZE * | Capture logs | * +===============================+ + CAPTURE_SIZE */ + if (intel_guc_capture_output_min_size_est(guc) > CAPTURE_BUFFER_SIZE) + DRM_WARN("GuC log buffer for state_capture maybe too small. %d < %d\n", + CAPTURE_BUFFER_SIZE, intel_guc_capture_output_min_size_est(guc)); + guc_log_size = PAGE_SIZE + CRASH_BUFFER_SIZE + DEBUG_BUFFER_SIZE + CAPTURE_BUFFER_SIZE; @@ -474,6 +495,17 @@ int intel_guc_log_create(struct intel_guc_log *log) } log->vma = vma; + /* + * Create a WC (Uncached for read) vmalloc mapping up front immediate access to + * data from memory during critical events such as error capture + */ + vaddr = i915_gem_object_pin_map_unlocked(log->vma->obj, I915_MAP_WC); + if (IS_ERR(vaddr)) { + ret = PTR_ERR(vaddr); + i915_vma_unpin_and_release(&log->vma, 0); + goto err; + } + log->buf_addr = vaddr; log->level = __get_default_log_level(log); DRM_DEBUG_DRIVER("guc_log_level=%d (%s, verbose:%s, verbosity:%d)\n", @@ -484,13 +516,14 @@ int intel_guc_log_create(struct intel_guc_log *log) return 0; err: - DRM_ERROR("Failed to allocate GuC log buffer. %d\n", ret); + DRM_ERROR("Failed to allocate or map GuC log buffer. %d\n", ret); return ret; } void intel_guc_log_destroy(struct intel_guc_log *log) { - i915_vma_unpin_and_release(&log->vma, 0); + log->buf_addr = NULL; + i915_vma_unpin_and_release(&log->vma, I915_VMA_RELEASE_MAP); } int intel_guc_log_set_level(struct intel_guc_log *log, u32 level) @@ -535,7 +568,7 @@ out_unlock: bool intel_guc_log_relay_created(const struct intel_guc_log *log) { - return log->relay.buf_addr; + return log->buf_addr; } int intel_guc_log_relay_open(struct intel_guc_log *log) @@ -566,7 +599,7 @@ int intel_guc_log_relay_open(struct intel_guc_log *log) if (ret) goto out_unlock; - ret = guc_log_map(log); + ret = guc_log_relay_map(log); if (ret) goto out_relay; @@ -616,8 +649,8 @@ void intel_guc_log_relay_flush(struct intel_guc_log *log) with_intel_runtime_pm(guc_to_gt(guc)->uncore->rpm, wakeref) guc_action_flush_log(guc); - /* GuC would have updated log buffer by now, so capture it */ - guc_log_capture_logs(log); + /* GuC would have updated log buffer by now, so copy it */ + guc_log_copy_debuglogs_for_relay(log); } /* @@ -646,7 +679,7 @@ void intel_guc_log_relay_close(struct intel_guc_log *log) mutex_lock(&log->relay.lock); GEM_BUG_ON(!intel_guc_log_relay_created(log)); - guc_log_unmap(log); + guc_log_relay_unmap(log); guc_log_relay_destroy(log); mutex_unlock(&log->relay.lock); } diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h index d7e1b6471fed..18007e639be9 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h @@ -49,8 +49,9 @@ struct intel_guc; struct intel_guc_log { u32 level; struct i915_vma *vma; + void *buf_addr; struct { - void *buf_addr; + bool buf_in_use; bool started; struct work_struct flush_work; struct rchan *channel; @@ -66,6 +67,10 @@ struct intel_guc_log { }; void intel_guc_log_init_early(struct intel_guc_log *log); +bool intel_guc_check_log_buf_overflow(struct intel_guc_log *log, enum guc_log_buffer_type type, + unsigned int full_cnt); +unsigned int intel_guc_get_log_buffer_size(enum guc_log_buffer_type type); +size_t intel_guc_get_log_buffer_offset(enum guc_log_buffer_type type); int intel_guc_log_create(struct intel_guc_log *log); void intel_guc_log_destroy(struct intel_guc_log *log); diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c index 9f032c65a488..1db833da42df 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c @@ -153,8 +153,8 @@ static int slpc_query_task_state(struct intel_guc_slpc *slpc) ret = guc_action_slpc_query(guc, offset); if (unlikely(ret)) - drm_err(&i915->drm, "Failed to query task state (%pe)\n", - ERR_PTR(ret)); + i915_probe_error(i915, "Failed to query task state (%pe)\n", + ERR_PTR(ret)); drm_clflush_virt_range(slpc->vaddr, SLPC_PAGE_SIZE_BYTES); @@ -171,8 +171,8 @@ static int slpc_set_param(struct intel_guc_slpc *slpc, u8 id, u32 value) ret = guc_action_slpc_set_param(guc, id, value); if (ret) - drm_err(&i915->drm, "Failed to set param %d to %u (%pe)\n", - id, value, ERR_PTR(ret)); + i915_probe_error(i915, "Failed to set param %d to %u (%pe)\n", + id, value, ERR_PTR(ret)); return ret; } @@ -212,8 +212,8 @@ static int slpc_force_min_freq(struct intel_guc_slpc *slpc, u32 freq) SLPC_PARAM_GLOBAL_MIN_GT_UNSLICE_FREQ_MHZ, freq); if (ret) - drm_err(&i915->drm, "Unable to force min freq to %u: %d", - freq, ret); + i915_probe_error(i915, "Unable to force min freq to %u: %d", + freq, ret); } return ret; @@ -248,9 +248,9 @@ int intel_guc_slpc_init(struct intel_guc_slpc *slpc) err = intel_guc_allocate_and_map_vma(guc, size, &slpc->vma, (void **)&slpc->vaddr); if (unlikely(err)) { - drm_err(&i915->drm, - "Failed to allocate SLPC struct (err=%pe)\n", - ERR_PTR(err)); + i915_probe_error(i915, + "Failed to allocate SLPC struct (err=%pe)\n", + ERR_PTR(err)); return err; } @@ -317,15 +317,15 @@ static int slpc_reset(struct intel_guc_slpc *slpc) ret = guc_action_slpc_reset(guc, offset); if (unlikely(ret < 0)) { - drm_err(&i915->drm, "SLPC reset action failed (%pe)\n", - ERR_PTR(ret)); + i915_probe_error(i915, "SLPC reset action failed (%pe)\n", + ERR_PTR(ret)); return ret; } if (!ret) { if (wait_for(slpc_is_running(slpc), SLPC_RESET_TIMEOUT_MS)) { - drm_err(&i915->drm, "SLPC not enabled! State = %s\n", - slpc_get_state_string(slpc)); + i915_probe_error(i915, "SLPC not enabled! State = %s\n", + slpc_get_state_string(slpc)); return -EIO; } } @@ -582,16 +582,12 @@ static int slpc_use_fused_rp0(struct intel_guc_slpc *slpc) static void slpc_get_rp_values(struct intel_guc_slpc *slpc) { struct intel_rps *rps = &slpc_to_gt(slpc)->rps; - u32 rp_state_cap; + struct intel_rps_freq_caps caps; - rp_state_cap = intel_rps_read_state_cap(rps); - - slpc->rp0_freq = REG_FIELD_GET(RP0_CAP_MASK, rp_state_cap) * - GT_FREQUENCY_MULTIPLIER; - slpc->rp1_freq = REG_FIELD_GET(RP1_CAP_MASK, rp_state_cap) * - GT_FREQUENCY_MULTIPLIER; - slpc->min_freq = REG_FIELD_GET(RPN_CAP_MASK, rp_state_cap) * - GT_FREQUENCY_MULTIPLIER; + gen6_rps_get_freq_caps(rps, &caps); + slpc->rp0_freq = intel_gpu_freq(rps, caps.rp0_freq); + slpc->rp1_freq = intel_gpu_freq(rps, caps.rp1_freq); + slpc->min_freq = intel_gpu_freq(rps, caps.min_freq); if (!slpc->boost_freq) slpc->boost_freq = slpc->rp0_freq; @@ -621,8 +617,8 @@ int intel_guc_slpc_enable(struct intel_guc_slpc *slpc) ret = slpc_reset(slpc); if (unlikely(ret < 0)) { - drm_err(&i915->drm, "SLPC Reset event returned (%pe)\n", - ERR_PTR(ret)); + i915_probe_error(i915, "SLPC Reset event returned (%pe)\n", + ERR_PTR(ret)); return ret; } @@ -637,24 +633,24 @@ int intel_guc_slpc_enable(struct intel_guc_slpc *slpc) /* Ignore efficient freq and set min to platform min */ ret = slpc_ignore_eff_freq(slpc, true); if (unlikely(ret)) { - drm_err(&i915->drm, "Failed to set SLPC min to RPn (%pe)\n", - ERR_PTR(ret)); + i915_probe_error(i915, "Failed to set SLPC min to RPn (%pe)\n", + ERR_PTR(ret)); return ret; } /* Set SLPC max limit to RP0 */ ret = slpc_use_fused_rp0(slpc); if (unlikely(ret)) { - drm_err(&i915->drm, "Failed to set SLPC max to RP0 (%pe)\n", - ERR_PTR(ret)); + i915_probe_error(i915, "Failed to set SLPC max to RP0 (%pe)\n", + ERR_PTR(ret)); return ret; } /* Revert SLPC min/max to softlimits if necessary */ ret = slpc_set_softlimits(slpc); if (unlikely(ret)) { - drm_err(&i915->drm, "Failed to set SLPC softlimits (%pe)\n", - ERR_PTR(ret)); + i915_probe_error(i915, "Failed to set SLPC softlimits (%pe)\n", + ERR_PTR(ret)); return ret; } diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c index 1ce7e04aa837..61a6f2424e24 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c @@ -25,6 +25,7 @@ #include "gt/intel_ring.h" #include "intel_guc_ads.h" +#include "intel_guc_capture.h" #include "intel_guc_submission.h" #include "i915_drv.h" @@ -161,7 +162,8 @@ guc_create_parallel(struct intel_engine_cs **engines, #define SCHED_STATE_ENABLED BIT(4) #define SCHED_STATE_PENDING_ENABLE BIT(5) #define SCHED_STATE_REGISTERED BIT(6) -#define SCHED_STATE_BLOCKED_SHIFT 7 +#define SCHED_STATE_POLICY_REQUIRED BIT(7) +#define SCHED_STATE_BLOCKED_SHIFT 8 #define SCHED_STATE_BLOCKED BIT(SCHED_STATE_BLOCKED_SHIFT) #define SCHED_STATE_BLOCKED_MASK (0xfff << SCHED_STATE_BLOCKED_SHIFT) @@ -300,6 +302,23 @@ static inline void clr_context_registered(struct intel_context *ce) ce->guc_state.sched_state &= ~SCHED_STATE_REGISTERED; } +static inline bool context_policy_required(struct intel_context *ce) +{ + return ce->guc_state.sched_state & SCHED_STATE_POLICY_REQUIRED; +} + +static inline void set_context_policy_required(struct intel_context *ce) +{ + lockdep_assert_held(&ce->guc_state.lock); + ce->guc_state.sched_state |= SCHED_STATE_POLICY_REQUIRED; +} + +static inline void clr_context_policy_required(struct intel_context *ce) +{ + lockdep_assert_held(&ce->guc_state.lock); + ce->guc_state.sched_state &= ~SCHED_STATE_POLICY_REQUIRED; +} + static inline u32 context_blocked(struct intel_context *ce) { return (ce->guc_state.sched_state & SCHED_STATE_BLOCKED_MASK) >> @@ -351,12 +370,12 @@ request_to_scheduling_context(struct i915_request *rq) static inline bool context_guc_id_invalid(struct intel_context *ce) { - return ce->guc_id.id == GUC_INVALID_LRC_ID; + return ce->guc_id.id == GUC_INVALID_CONTEXT_ID; } static inline void set_context_guc_id_invalid(struct intel_context *ce) { - ce->guc_id.id = GUC_INVALID_LRC_ID; + ce->guc_id.id = GUC_INVALID_CONTEXT_ID; } static inline struct intel_guc *ce_to_guc(struct intel_context *ce) @@ -395,12 +414,12 @@ struct sync_semaphore { }; struct parent_scratch { - struct guc_process_desc pdesc; + struct guc_sched_wq_desc wq_desc; struct sync_semaphore go; struct sync_semaphore join[MAX_ENGINE_INSTANCE + 1]; - u8 unused[WQ_OFFSET - sizeof(struct guc_process_desc) - + u8 unused[WQ_OFFSET - sizeof(struct guc_sched_wq_desc) - sizeof(struct sync_semaphore) * (MAX_ENGINE_INSTANCE + 2)]; u32 wq[WQ_SIZE / sizeof(u32)]; @@ -437,15 +456,15 @@ __get_parent_scratch(struct intel_context *ce) LRC_STATE_OFFSET) / sizeof(u32))); } -static struct guc_process_desc * -__get_process_desc(struct intel_context *ce) +static struct guc_sched_wq_desc * +__get_wq_desc(struct intel_context *ce) { struct parent_scratch *ps = __get_parent_scratch(ce); - return &ps->pdesc; + return &ps->wq_desc; } -static u32 *get_wq_pointer(struct guc_process_desc *desc, +static u32 *get_wq_pointer(struct guc_sched_wq_desc *wq_desc, struct intel_context *ce, u32 wqi_size) { @@ -457,7 +476,7 @@ static u32 *get_wq_pointer(struct guc_process_desc *desc, #define AVAILABLE_SPACE \ CIRC_SPACE(ce->parallel.guc.wqi_tail, ce->parallel.guc.wqi_head, WQ_SIZE) if (wqi_size > AVAILABLE_SPACE) { - ce->parallel.guc.wqi_head = READ_ONCE(desc->head); + ce->parallel.guc.wqi_head = READ_ONCE(wq_desc->head); if (wqi_size > AVAILABLE_SPACE) return NULL; @@ -467,75 +486,27 @@ static u32 *get_wq_pointer(struct guc_process_desc *desc, return &__get_parent_scratch(ce)->wq[ce->parallel.guc.wqi_tail / sizeof(u32)]; } -static struct guc_lrc_desc *__get_lrc_desc(struct intel_guc *guc, u32 index) -{ - struct guc_lrc_desc *base = guc->lrc_desc_pool_vaddr; - - GEM_BUG_ON(index >= GUC_MAX_LRC_DESCRIPTORS); - - return &base[index]; -} - static inline struct intel_context *__get_context(struct intel_guc *guc, u32 id) { struct intel_context *ce = xa_load(&guc->context_lookup, id); - GEM_BUG_ON(id >= GUC_MAX_LRC_DESCRIPTORS); + GEM_BUG_ON(id >= GUC_MAX_CONTEXT_ID); return ce; } -static int guc_lrc_desc_pool_create(struct intel_guc *guc) -{ - u32 size; - int ret; - - size = PAGE_ALIGN(sizeof(struct guc_lrc_desc) * - GUC_MAX_LRC_DESCRIPTORS); - ret = intel_guc_allocate_and_map_vma(guc, size, &guc->lrc_desc_pool, - (void **)&guc->lrc_desc_pool_vaddr); - if (ret) - return ret; - - return 0; -} - -static void guc_lrc_desc_pool_destroy(struct intel_guc *guc) -{ - guc->lrc_desc_pool_vaddr = NULL; - i915_vma_unpin_and_release(&guc->lrc_desc_pool, I915_VMA_RELEASE_MAP); -} - static inline bool guc_submission_initialized(struct intel_guc *guc) { - return !!guc->lrc_desc_pool_vaddr; + return guc->submission_initialized; } -static inline void reset_lrc_desc(struct intel_guc *guc, u32 id) -{ - if (likely(guc_submission_initialized(guc))) { - struct guc_lrc_desc *desc = __get_lrc_desc(guc, id); - unsigned long flags; - - memset(desc, 0, sizeof(*desc)); - - /* - * xarray API doesn't have xa_erase_irqsave wrapper, so calling - * the lower level functions directly. - */ - xa_lock_irqsave(&guc->context_lookup, flags); - __xa_erase(&guc->context_lookup, id); - xa_unlock_irqrestore(&guc->context_lookup, flags); - } -} - -static inline bool lrc_desc_registered(struct intel_guc *guc, u32 id) +static inline bool ctx_id_mapped(struct intel_guc *guc, u32 id) { return __get_context(guc, id); } -static inline void set_lrc_desc_registered(struct intel_guc *guc, u32 id, - struct intel_context *ce) +static inline void set_ctx_id_mapping(struct intel_guc *guc, u32 id, + struct intel_context *ce) { unsigned long flags; @@ -548,6 +519,22 @@ static inline void set_lrc_desc_registered(struct intel_guc *guc, u32 id, xa_unlock_irqrestore(&guc->context_lookup, flags); } +static inline void clr_ctx_id_mapping(struct intel_guc *guc, u32 id) +{ + unsigned long flags; + + if (unlikely(!guc_submission_initialized(guc))) + return; + + /* + * xarray API doesn't have xa_erase_irqsave wrapper, so calling + * the lower level functions directly. + */ + xa_lock_irqsave(&guc->context_lookup, flags); + __xa_erase(&guc->context_lookup, id); + xa_unlock_irqrestore(&guc->context_lookup, flags); +} + static void decr_outstanding_submission_g2h(struct intel_guc *guc) { if (atomic_dec_and_test(&guc->outstanding_submission_g2h)) @@ -624,7 +611,8 @@ int intel_guc_wait_for_idle(struct intel_guc *guc, long timeout) true, timeout); } -static int guc_lrc_desc_pin(struct intel_context *ce, bool loop); +static int guc_context_policy_init(struct intel_context *ce, bool loop); +static int try_context_registration(struct intel_context *ce, bool loop); static int __guc_add_request(struct intel_guc *guc, struct i915_request *rq) { @@ -650,6 +638,12 @@ static int __guc_add_request(struct intel_guc *guc, struct i915_request *rq) GEM_BUG_ON(!atomic_read(&ce->guc_id.ref)); GEM_BUG_ON(context_guc_id_invalid(ce)); + if (context_policy_required(ce)) { + err = guc_context_policy_init(ce, false); + if (err) + return err; + } + spin_lock(&ce->guc_state.lock); /* @@ -743,7 +737,7 @@ static u32 wq_space_until_wrap(struct intel_context *ce) return (WQ_SIZE - ce->parallel.guc.wqi_tail); } -static void write_wqi(struct guc_process_desc *desc, +static void write_wqi(struct guc_sched_wq_desc *wq_desc, struct intel_context *ce, u32 wqi_size) { @@ -756,13 +750,13 @@ static void write_wqi(struct guc_process_desc *desc, ce->parallel.guc.wqi_tail = (ce->parallel.guc.wqi_tail + wqi_size) & (WQ_SIZE - 1); - WRITE_ONCE(desc->tail, ce->parallel.guc.wqi_tail); + WRITE_ONCE(wq_desc->tail, ce->parallel.guc.wqi_tail); } static int guc_wq_noop_append(struct intel_context *ce) { - struct guc_process_desc *desc = __get_process_desc(ce); - u32 *wqi = get_wq_pointer(desc, ce, wq_space_until_wrap(ce)); + struct guc_sched_wq_desc *wq_desc = __get_wq_desc(ce); + u32 *wqi = get_wq_pointer(wq_desc, ce, wq_space_until_wrap(ce)); u32 len_dw = wq_space_until_wrap(ce) / sizeof(u32) - 1; if (!wqi) @@ -781,7 +775,7 @@ static int __guc_wq_item_append(struct i915_request *rq) { struct intel_context *ce = request_to_scheduling_context(rq); struct intel_context *child; - struct guc_process_desc *desc = __get_process_desc(ce); + struct guc_sched_wq_desc *wq_desc = __get_wq_desc(ce); unsigned int wqi_size = (ce->parallel.number_children + 4) * sizeof(u32); u32 *wqi; @@ -792,7 +786,7 @@ static int __guc_wq_item_append(struct i915_request *rq) GEM_BUG_ON(!atomic_read(&ce->guc_id.ref)); GEM_BUG_ON(context_guc_id_invalid(ce)); GEM_BUG_ON(context_wait_for_deregister_to_register(ce)); - GEM_BUG_ON(!lrc_desc_registered(ce_to_guc(ce), ce->guc_id.id)); + GEM_BUG_ON(!ctx_id_mapped(ce_to_guc(ce), ce->guc_id.id)); /* Insert NOOP if this work queue item will wrap the tail pointer. */ if (wqi_size > wq_space_until_wrap(ce)) { @@ -801,7 +795,7 @@ static int __guc_wq_item_append(struct i915_request *rq) return ret; } - wqi = get_wq_pointer(desc, ce, wqi_size); + wqi = get_wq_pointer(wq_desc, ce, wqi_size); if (!wqi) return -EBUSY; @@ -816,7 +810,7 @@ static int __guc_wq_item_append(struct i915_request *rq) for_each_child(ce, child) *wqi++ = child->ring->tail / sizeof(u64); - write_wqi(desc, ce, wqi_size); + write_wqi(wq_desc, ce, wqi_size); return 0; } @@ -920,9 +914,9 @@ register_context: if (submit) { struct intel_context *ce = request_to_scheduling_context(last); - if (unlikely(!lrc_desc_registered(guc, ce->guc_id.id) && + if (unlikely(!ctx_id_mapped(guc, ce->guc_id.id) && !intel_context_is_banned(ce))) { - ret = guc_lrc_desc_pin(ce, false); + ret = try_context_registration(ce, false); if (unlikely(ret == -EPIPE)) { goto deadlk; } else if (ret == -EBUSY) { @@ -1546,6 +1540,89 @@ static void guc_reset_state(struct intel_context *ce, u32 head, bool scrub) lrc_update_regs(ce, engine, head); } +static u32 __cs_pending_mi_force_wakes(struct intel_engine_cs *engine) +{ + static const i915_reg_t _reg[I915_NUM_ENGINES] = { + [RCS0] = MSG_IDLE_CS, + [BCS0] = MSG_IDLE_BCS, + [VCS0] = MSG_IDLE_VCS0, + [VCS1] = MSG_IDLE_VCS1, + [VCS2] = MSG_IDLE_VCS2, + [VCS3] = MSG_IDLE_VCS3, + [VCS4] = MSG_IDLE_VCS4, + [VCS5] = MSG_IDLE_VCS5, + [VCS6] = MSG_IDLE_VCS6, + [VCS7] = MSG_IDLE_VCS7, + [VECS0] = MSG_IDLE_VECS0, + [VECS1] = MSG_IDLE_VECS1, + [VECS2] = MSG_IDLE_VECS2, + [VECS3] = MSG_IDLE_VECS3, + [CCS0] = MSG_IDLE_CS, + [CCS1] = MSG_IDLE_CS, + [CCS2] = MSG_IDLE_CS, + [CCS3] = MSG_IDLE_CS, + }; + u32 val; + + if (!_reg[engine->id].reg) + return 0; + + val = intel_uncore_read(engine->uncore, _reg[engine->id]); + + /* bits[29:25] & bits[13:9] >> shift */ + return (val & (val >> 16) & MSG_IDLE_FW_MASK) >> MSG_IDLE_FW_SHIFT; +} + +static void __gpm_wait_for_fw_complete(struct intel_gt *gt, u32 fw_mask) +{ + int ret; + + /* Ensure GPM receives fw up/down after CS is stopped */ + udelay(1); + + /* Wait for forcewake request to complete in GPM */ + ret = __intel_wait_for_register_fw(gt->uncore, + GEN9_PWRGT_DOMAIN_STATUS, + fw_mask, fw_mask, 5000, 0, NULL); + + /* Ensure CS receives fw ack from GPM */ + udelay(1); + + if (ret) + GT_TRACE(gt, "Failed to complete pending forcewake %d\n", ret); +} + +/* + * Wa_22011802037:gen12: In addition to stopping the cs, we need to wait for any + * pending MI_FORCE_WAKEUP requests that the CS has initiated to complete. The + * pending status is indicated by bits[13:9] (masked by bits[ 29:25]) in the + * MSG_IDLE register. There's one MSG_IDLE register per reset domain. Since we + * are concerned only with the gt reset here, we use a logical OR of pending + * forcewakeups from all reset domains and then wait for them to complete by + * querying PWRGT_DOMAIN_STATUS. + */ +static void guc_engine_reset_prepare(struct intel_engine_cs *engine) +{ + u32 fw_pending; + + if (GRAPHICS_VER(engine->i915) != 12) + return; + + /* + * Wa_22011802037 + * TODO: Occasionally trying to stop the cs times out, but does not + * adversely affect functionality. The timeout is set as a config + * parameter that defaults to 100ms. Assuming that this timeout is + * sufficient for any pending MI_FORCEWAKEs to complete, ignore the + * timeout returned here until it is root caused. + */ + intel_engine_stop_cs(engine); + + fw_pending = __cs_pending_mi_force_wakes(engine); + if (fw_pending) + __gpm_wait_for_fw_complete(engine->gt, fw_pending); +} + static void guc_reset_nop(struct intel_engine_cs *engine) { } @@ -1804,20 +1881,10 @@ static void reset_fail_worker_func(struct work_struct *w); int intel_guc_submission_init(struct intel_guc *guc) { struct intel_gt *gt = guc_to_gt(guc); - int ret; - if (guc->lrc_desc_pool) + if (guc->submission_initialized) return 0; - ret = guc_lrc_desc_pool_create(guc); - if (ret) - return ret; - /* - * Keep static analysers happy, let them know that we allocated the - * vma after testing that it didn't exist earlier. - */ - GEM_BUG_ON(!guc->lrc_desc_pool); - guc->submission_state.guc_ids_bitmap = bitmap_zalloc(NUMBER_MULTI_LRC_GUC_ID(guc), GFP_KERNEL); if (!guc->submission_state.guc_ids_bitmap) @@ -1825,19 +1892,20 @@ int intel_guc_submission_init(struct intel_guc *guc) guc->timestamp.ping_delay = (POLL_TIME_CLKS / gt->clock_frequency + 1) * HZ; guc->timestamp.shift = gpm_timestamp_shift(gt); + guc->submission_initialized = true; return 0; } void intel_guc_submission_fini(struct intel_guc *guc) { - if (!guc->lrc_desc_pool) + if (!guc->submission_initialized) return; guc_flush_destroyed_contexts(guc); - guc_lrc_desc_pool_destroy(guc); i915_sched_engine_put(guc->sched_engine); bitmap_free(guc->submission_state.guc_ids_bitmap); + guc->submission_initialized = false; } static inline void queue_request(struct i915_sched_engine *sched_engine, @@ -1884,7 +1952,7 @@ static bool need_tasklet(struct intel_guc *guc, struct i915_request *rq) return submission_disabled(guc) || guc->stalled_request || !i915_sched_engine_is_empty(sched_engine) || - !lrc_desc_registered(guc, ce->guc_id.id); + !ctx_id_mapped(guc, ce->guc_id.id); } static void guc_submit_request(struct i915_request *rq) @@ -1941,7 +2009,7 @@ static void __release_guc_id(struct intel_guc *guc, struct intel_context *ce) else ida_simple_remove(&guc->submission_state.guc_ids, ce->guc_id.id); - reset_lrc_desc(guc, ce->guc_id.id); + clr_ctx_id_mapping(guc, ce->guc_id.id); set_context_guc_id_invalid(ce); } if (!list_empty(&ce->guc_id.link)) @@ -2094,65 +2162,96 @@ static void unpin_guc_id(struct intel_guc *guc, struct intel_context *ce) static int __guc_action_register_multi_lrc(struct intel_guc *guc, struct intel_context *ce, - u32 guc_id, - u32 offset, + struct guc_ctxt_registration_info *info, bool loop) { struct intel_context *child; - u32 action[4 + MAX_ENGINE_INSTANCE]; + u32 action[13 + (MAX_ENGINE_INSTANCE * 2)]; int len = 0; + u32 next_id; GEM_BUG_ON(ce->parallel.number_children > MAX_ENGINE_INSTANCE); action[len++] = INTEL_GUC_ACTION_REGISTER_CONTEXT_MULTI_LRC; - action[len++] = guc_id; + action[len++] = info->flags; + action[len++] = info->context_idx; + action[len++] = info->engine_class; + action[len++] = info->engine_submit_mask; + action[len++] = info->wq_desc_lo; + action[len++] = info->wq_desc_hi; + action[len++] = info->wq_base_lo; + action[len++] = info->wq_base_hi; + action[len++] = info->wq_size; action[len++] = ce->parallel.number_children + 1; - action[len++] = offset; + action[len++] = info->hwlrca_lo; + action[len++] = info->hwlrca_hi; + + next_id = info->context_idx + 1; for_each_child(ce, child) { - offset += sizeof(struct guc_lrc_desc); - action[len++] = offset; + GEM_BUG_ON(next_id++ != child->guc_id.id); + + /* + * NB: GuC interface supports 64 bit LRCA even though i915/HW + * only supports 32 bit currently. + */ + action[len++] = lower_32_bits(child->lrc.lrca); + action[len++] = upper_32_bits(child->lrc.lrca); } + GEM_BUG_ON(len > ARRAY_SIZE(action)); + return guc_submission_send_busy_loop(guc, action, len, 0, loop); } static int __guc_action_register_context(struct intel_guc *guc, - u32 guc_id, - u32 offset, + struct guc_ctxt_registration_info *info, bool loop) { u32 action[] = { INTEL_GUC_ACTION_REGISTER_CONTEXT, - guc_id, - offset, + info->flags, + info->context_idx, + info->engine_class, + info->engine_submit_mask, + info->wq_desc_lo, + info->wq_desc_hi, + info->wq_base_lo, + info->wq_base_hi, + info->wq_size, + info->hwlrca_lo, + info->hwlrca_hi, }; return guc_submission_send_busy_loop(guc, action, ARRAY_SIZE(action), 0, loop); } +static void prepare_context_registration_info(struct intel_context *ce, + struct guc_ctxt_registration_info *info); + static int register_context(struct intel_context *ce, bool loop) { + struct guc_ctxt_registration_info info; struct intel_guc *guc = ce_to_guc(ce); - u32 offset = intel_guc_ggtt_offset(guc, guc->lrc_desc_pool) + - ce->guc_id.id * sizeof(struct guc_lrc_desc); int ret; GEM_BUG_ON(intel_context_is_child(ce)); trace_intel_context_register(ce); + prepare_context_registration_info(ce, &info); + if (intel_context_is_parent(ce)) - ret = __guc_action_register_multi_lrc(guc, ce, ce->guc_id.id, - offset, loop); + ret = __guc_action_register_multi_lrc(guc, ce, &info, loop); else - ret = __guc_action_register_context(guc, ce->guc_id.id, offset, - loop); + ret = __guc_action_register_context(guc, &info, loop); if (likely(!ret)) { unsigned long flags; spin_lock_irqsave(&ce->guc_state.lock, flags); set_context_registered(ce); spin_unlock_irqrestore(&ce->guc_state.lock, flags); + + guc_context_policy_init(ce, loop); } return ret; @@ -2202,33 +2301,120 @@ static inline u32 get_children_join_value(struct intel_context *ce, return __get_parent_scratch(ce)->join[child_index].semaphore; } -static void guc_context_policy_init(struct intel_engine_cs *engine, - struct guc_lrc_desc *desc) +struct context_policy { + u32 count; + struct guc_update_context_policy h2g; +}; + +static u32 __guc_context_policy_action_size(struct context_policy *policy) { - desc->policy_flags = 0; + size_t bytes = sizeof(policy->h2g.header) + + (sizeof(policy->h2g.klv[0]) * policy->count); - if (engine->flags & I915_ENGINE_WANT_FORCED_PREEMPTION) - desc->policy_flags |= CONTEXT_POLICY_FLAG_PREEMPT_TO_IDLE; + return bytes / sizeof(u32); +} + +static void __guc_context_policy_start_klv(struct context_policy *policy, u16 guc_id) +{ + policy->h2g.header.action = INTEL_GUC_ACTION_HOST2GUC_UPDATE_CONTEXT_POLICIES; + policy->h2g.header.ctx_id = guc_id; + policy->count = 0; +} + +#define MAKE_CONTEXT_POLICY_ADD(func, id) \ +static void __guc_context_policy_add_##func(struct context_policy *policy, u32 data) \ +{ \ + GEM_BUG_ON(policy->count >= GUC_CONTEXT_POLICIES_KLV_NUM_IDS); \ + policy->h2g.klv[policy->count].kl = \ + FIELD_PREP(GUC_KLV_0_KEY, GUC_CONTEXT_POLICIES_KLV_ID_##id) | \ + FIELD_PREP(GUC_KLV_0_LEN, 1); \ + policy->h2g.klv[policy->count].value = data; \ + policy->count++; \ +} + +MAKE_CONTEXT_POLICY_ADD(execution_quantum, EXECUTION_QUANTUM) +MAKE_CONTEXT_POLICY_ADD(preemption_timeout, PREEMPTION_TIMEOUT) +MAKE_CONTEXT_POLICY_ADD(priority, SCHEDULING_PRIORITY) +MAKE_CONTEXT_POLICY_ADD(preempt_to_idle, PREEMPT_TO_IDLE_ON_QUANTUM_EXPIRY) + +#undef MAKE_CONTEXT_POLICY_ADD + +static int __guc_context_set_context_policies(struct intel_guc *guc, + struct context_policy *policy, + bool loop) +{ + return guc_submission_send_busy_loop(guc, (u32 *)&policy->h2g, + __guc_context_policy_action_size(policy), + 0, loop); +} + +static int guc_context_policy_init(struct intel_context *ce, bool loop) +{ + struct intel_engine_cs *engine = ce->engine; + struct intel_guc *guc = &engine->gt->uc.guc; + struct context_policy policy; + u32 execution_quantum; + u32 preemption_timeout; + bool missing = false; + unsigned long flags; + int ret; /* NB: For both of these, zero means disabled. */ - desc->execution_quantum = engine->props.timeslice_duration_ms * 1000; - desc->preemption_timeout = engine->props.preempt_timeout_ms * 1000; + execution_quantum = engine->props.timeslice_duration_ms * 1000; + preemption_timeout = engine->props.preempt_timeout_ms * 1000; + + __guc_context_policy_start_klv(&policy, ce->guc_id.id); + + __guc_context_policy_add_priority(&policy, ce->guc_state.prio); + __guc_context_policy_add_execution_quantum(&policy, execution_quantum); + __guc_context_policy_add_preemption_timeout(&policy, preemption_timeout); + + if (engine->flags & I915_ENGINE_WANT_FORCED_PREEMPTION) + __guc_context_policy_add_preempt_to_idle(&policy, 1); + + ret = __guc_context_set_context_policies(guc, &policy, loop); + missing = ret != 0; + + if (!missing && intel_context_is_parent(ce)) { + struct intel_context *child; + + for_each_child(ce, child) { + __guc_context_policy_start_klv(&policy, child->guc_id.id); + + if (engine->flags & I915_ENGINE_WANT_FORCED_PREEMPTION) + __guc_context_policy_add_preempt_to_idle(&policy, 1); + + child->guc_state.prio = ce->guc_state.prio; + __guc_context_policy_add_priority(&policy, ce->guc_state.prio); + __guc_context_policy_add_execution_quantum(&policy, execution_quantum); + __guc_context_policy_add_preemption_timeout(&policy, preemption_timeout); + + ret = __guc_context_set_context_policies(guc, &policy, loop); + if (ret) { + missing = true; + break; + } + } + } + + spin_lock_irqsave(&ce->guc_state.lock, flags); + if (missing) + set_context_policy_required(ce); + else + clr_context_policy_required(ce); + spin_unlock_irqrestore(&ce->guc_state.lock, flags); + + return ret; } -static int guc_lrc_desc_pin(struct intel_context *ce, bool loop) +static void prepare_context_registration_info(struct intel_context *ce, + struct guc_ctxt_registration_info *info) { struct intel_engine_cs *engine = ce->engine; - struct intel_runtime_pm *runtime_pm = engine->uncore->rpm; struct intel_guc *guc = &engine->gt->uc.guc; - u32 desc_idx = ce->guc_id.id; - struct guc_lrc_desc *desc; - bool context_registered; - intel_wakeref_t wakeref; - struct intel_context *child; - int ret = 0; + u32 ctx_id = ce->guc_id.id; GEM_BUG_ON(!engine->mask); - GEM_BUG_ON(!sched_state_is_init(ce)); /* * Ensure LRC + CT vmas are is same region as write barrier is done @@ -2237,55 +2423,63 @@ static int guc_lrc_desc_pin(struct intel_context *ce, bool loop) GEM_BUG_ON(i915_gem_object_is_lmem(guc->ct.vma->obj) != i915_gem_object_is_lmem(ce->ring->vma->obj)); - context_registered = lrc_desc_registered(guc, desc_idx); - - reset_lrc_desc(guc, desc_idx); - set_lrc_desc_registered(guc, desc_idx, ce); - - desc = __get_lrc_desc(guc, desc_idx); - desc->engine_class = engine_class_to_guc_class(engine->class); - desc->engine_submit_mask = engine->logical_mask; - desc->hw_context_desc = ce->lrc.lrca; - desc->priority = ce->guc_state.prio; - desc->context_flags = CONTEXT_REGISTRATION_FLAG_KMD; - guc_context_policy_init(engine, desc); + memset(info, 0, sizeof(*info)); + info->context_idx = ctx_id; + info->engine_class = engine_class_to_guc_class(engine->class); + info->engine_submit_mask = engine->logical_mask; + /* + * NB: GuC interface supports 64 bit LRCA even though i915/HW + * only supports 32 bit currently. + */ + info->hwlrca_lo = lower_32_bits(ce->lrc.lrca); + info->hwlrca_hi = upper_32_bits(ce->lrc.lrca); + info->flags = CONTEXT_REGISTRATION_FLAG_KMD; /* * If context is a parent, we need to register a process descriptor * describing a work queue and register all child contexts. */ if (intel_context_is_parent(ce)) { - struct guc_process_desc *pdesc; + struct guc_sched_wq_desc *wq_desc; + u64 wq_desc_offset, wq_base_offset; ce->parallel.guc.wqi_tail = 0; ce->parallel.guc.wqi_head = 0; - desc->process_desc = i915_ggtt_offset(ce->state) + - __get_parent_scratch_offset(ce); - desc->wq_addr = i915_ggtt_offset(ce->state) + - __get_wq_offset(ce); - desc->wq_size = WQ_SIZE; + wq_desc_offset = i915_ggtt_offset(ce->state) + + __get_parent_scratch_offset(ce); + wq_base_offset = i915_ggtt_offset(ce->state) + + __get_wq_offset(ce); + info->wq_desc_lo = lower_32_bits(wq_desc_offset); + info->wq_desc_hi = upper_32_bits(wq_desc_offset); + info->wq_base_lo = lower_32_bits(wq_base_offset); + info->wq_base_hi = upper_32_bits(wq_base_offset); + info->wq_size = WQ_SIZE; - pdesc = __get_process_desc(ce); - memset(pdesc, 0, sizeof(*(pdesc))); - pdesc->stage_id = ce->guc_id.id; - pdesc->wq_base_addr = desc->wq_addr; - pdesc->wq_size_bytes = desc->wq_size; - pdesc->wq_status = WQ_STATUS_ACTIVE; - - for_each_child(ce, child) { - desc = __get_lrc_desc(guc, child->guc_id.id); - - desc->engine_class = - engine_class_to_guc_class(engine->class); - desc->hw_context_desc = child->lrc.lrca; - desc->priority = ce->guc_state.prio; - desc->context_flags = CONTEXT_REGISTRATION_FLAG_KMD; - guc_context_policy_init(engine, desc); - } + wq_desc = __get_wq_desc(ce); + memset(wq_desc, 0, sizeof(*wq_desc)); + wq_desc->wq_status = WQ_STATUS_ACTIVE; clear_children_join_go_memory(ce); } +} + +static int try_context_registration(struct intel_context *ce, bool loop) +{ + struct intel_engine_cs *engine = ce->engine; + struct intel_runtime_pm *runtime_pm = engine->uncore->rpm; + struct intel_guc *guc = &engine->gt->uc.guc; + intel_wakeref_t wakeref; + u32 ctx_id = ce->guc_id.id; + bool context_registered; + int ret = 0; + + GEM_BUG_ON(!sched_state_is_init(ce)); + + context_registered = ctx_id_mapped(guc, ctx_id); + + clr_ctx_id_mapping(guc, ctx_id); + set_ctx_id_mapping(guc, ctx_id, ce); /* * The context_lookup xarray is used to determine if the hardware @@ -2311,7 +2505,7 @@ static int guc_lrc_desc_pin(struct intel_context *ce, bool loop) } spin_unlock_irqrestore(&ce->guc_state.lock, flags); if (unlikely(disabled)) { - reset_lrc_desc(guc, desc_idx); + clr_ctx_id_mapping(guc, ctx_id); return 0; /* Will get registered later */ } @@ -2327,9 +2521,9 @@ static int guc_lrc_desc_pin(struct intel_context *ce, bool loop) with_intel_runtime_pm(runtime_pm, wakeref) ret = register_context(ce, loop); if (unlikely(ret == -EBUSY)) { - reset_lrc_desc(guc, desc_idx); + clr_ctx_id_mapping(guc, ctx_id); } else if (unlikely(ret == -ENODEV)) { - reset_lrc_desc(guc, desc_idx); + clr_ctx_id_mapping(guc, ctx_id); ret = 0; /* Will get registered later */ } } @@ -2419,7 +2613,7 @@ static void __guc_context_sched_disable(struct intel_guc *guc, GUC_CONTEXT_DISABLE }; - GEM_BUG_ON(guc_id == GUC_INVALID_LRC_ID); + GEM_BUG_ON(guc_id == GUC_INVALID_CONTEXT_ID); GEM_BUG_ON(intel_context_is_child(ce)); trace_intel_context_sched_disable(ce); @@ -2516,7 +2710,7 @@ static bool context_cant_unblock(struct intel_context *ce) return (ce->guc_state.sched_state & SCHED_STATE_NO_UNBLOCK) || context_guc_id_invalid(ce) || - !lrc_desc_registered(ce_to_guc(ce), ce->guc_id.id) || + !ctx_id_mapped(ce_to_guc(ce), ce->guc_id.id) || !intel_context_is_pinned(ce); } @@ -2580,13 +2774,11 @@ static void __guc_context_set_preemption_timeout(struct intel_guc *guc, u16 guc_id, u32 preemption_timeout) { - u32 action[] = { - INTEL_GUC_ACTION_SET_CONTEXT_PREEMPTION_TIMEOUT, - guc_id, - preemption_timeout - }; + struct context_policy policy; - intel_guc_send_busy_loop(guc, action, ARRAY_SIZE(action), 0, true); + __guc_context_policy_start_klv(&policy, guc_id); + __guc_context_policy_add_preemption_timeout(&policy, preemption_timeout); + __guc_context_set_context_policies(guc, &policy, true); } static void guc_context_ban(struct intel_context *ce, struct i915_request *rq) @@ -2686,7 +2878,7 @@ static inline void guc_lrc_desc_unpin(struct intel_context *ce) bool disabled; GEM_BUG_ON(!intel_gt_pm_is_awake(gt)); - GEM_BUG_ON(!lrc_desc_registered(guc, ce->guc_id.id)); + GEM_BUG_ON(!ctx_id_mapped(guc, ce->guc_id.id)); GEM_BUG_ON(ce != __get_context(guc, ce->guc_id.id)); GEM_BUG_ON(context_enabled(ce)); @@ -2803,7 +2995,7 @@ static void guc_context_destroy(struct kref *kref) */ spin_lock_irqsave(&guc->submission_state.lock, flags); destroy = submission_disabled(guc) || context_guc_id_invalid(ce) || - !lrc_desc_registered(guc, ce->guc_id.id); + !ctx_id_mapped(guc, ce->guc_id.id); if (likely(!destroy)) { if (!list_empty(&ce->guc_id.link)) list_del_init(&ce->guc_id.link); @@ -2831,16 +3023,20 @@ static int guc_context_alloc(struct intel_context *ce) return lrc_alloc(ce, ce->engine); } +static void __guc_context_set_prio(struct intel_guc *guc, + struct intel_context *ce) +{ + struct context_policy policy; + + __guc_context_policy_start_klv(&policy, ce->guc_id.id); + __guc_context_policy_add_priority(&policy, ce->guc_state.prio); + __guc_context_set_context_policies(guc, &policy, true); +} + static void guc_context_set_prio(struct intel_guc *guc, struct intel_context *ce, u8 prio) { - u32 action[] = { - INTEL_GUC_ACTION_SET_CONTEXT_PRIORITY, - ce->guc_id.id, - prio, - }; - GEM_BUG_ON(prio < GUC_CLIENT_PRIORITY_KMD_HIGH || prio > GUC_CLIENT_PRIORITY_NORMAL); lockdep_assert_held(&ce->guc_state.lock); @@ -2851,9 +3047,9 @@ static void guc_context_set_prio(struct intel_guc *guc, return; } - guc_submission_send_busy_loop(guc, action, ARRAY_SIZE(action), 0, true); - ce->guc_state.prio = prio; + __guc_context_set_prio(guc, ce); + trace_intel_context_set_prio(ce); } @@ -3046,7 +3242,7 @@ static void guc_signal_context_fence(struct intel_context *ce) static bool context_needs_register(struct intel_context *ce, bool new_guc_id) { return (new_guc_id || test_bit(CONTEXT_LRCA_DIRTY, &ce->flags) || - !lrc_desc_registered(ce_to_guc(ce), ce->guc_id.id)) && + !ctx_id_mapped(ce_to_guc(ce), ce->guc_id.id)) && !submission_disabled(ce_to_guc(ce)); } @@ -3123,7 +3319,7 @@ static int guc_request_alloc(struct i915_request *rq) if (unlikely(ret < 0)) return ret; if (context_needs_register(ce, !!ret)) { - ret = guc_lrc_desc_pin(ce, true); + ret = try_context_registration(ce, true); if (unlikely(ret)) { /* unwind */ if (ret == -EPIPE) { disable_submission(guc); @@ -3560,7 +3756,7 @@ static void guc_sanitize(struct intel_engine_cs *engine) sanitize_hwsp(engine); /* And scrub the dirty cachelines for the HWSP */ - clflush_cache_range(engine->status_page.addr, PAGE_SIZE); + drm_clflush_virt_range(engine->status_page.addr, PAGE_SIZE); intel_engine_reset_pinned_contexts(engine); } @@ -3595,7 +3791,7 @@ static int guc_resume(struct intel_engine_cs *engine) setup_hwsp(engine); start_engine(engine); - if (engine->class == RENDER_CLASS) + if (engine->flags & I915_ENGINE_FIRST_RENDER_COMPUTE) xehp_enable_ccs_engines(engine); return 0; @@ -3614,9 +3810,17 @@ static void guc_set_default_submission(struct intel_engine_cs *engine) static inline void guc_kernel_context_pin(struct intel_guc *guc, struct intel_context *ce) { + /* + * Note: we purposefully do not check the returns below because + * the registration can only fail if a reset is just starting. + * This is called at the end of reset so presumably another reset + * isn't happening and even it did this code would be run again. + */ + if (context_guc_id_invalid(ce)) pin_guc_id(guc, ce); - guc_lrc_desc_pin(ce, true); + + try_context_registration(ce, true); } static inline void guc_init_lrc_mapping(struct intel_guc *guc) @@ -3634,13 +3838,7 @@ static inline void guc_init_lrc_mapping(struct intel_guc *guc) * Also, after a reset the of the GuC we want to make sure that the * information shared with GuC is properly reset. The kernel LRCs are * not attached to the gem_context, so they need to be added separately. - * - * Note: we purposefully do not check the return of guc_lrc_desc_pin, - * because that function can only fail if a reset is just starting. This - * is at the end of reset so presumably another reset isn't happening - * and even it did this code would be run again. */ - for_each_engine(engine, gt, id) { struct intel_context *ce; @@ -3680,7 +3878,7 @@ static void guc_default_vfuncs(struct intel_engine_cs *engine) engine->sched_engine->schedule = i915_schedule; - engine->reset.prepare = guc_reset_nop; + engine->reset.prepare = guc_engine_reset_prepare; engine->reset.rewind = guc_rewind_nop; engine->reset.cancel = guc_reset_nop; engine->reset.finish = guc_reset_nop; @@ -3699,6 +3897,10 @@ static void guc_default_vfuncs(struct intel_engine_cs *engine) engine->flags |= I915_ENGINE_HAS_PREEMPTION; engine->flags |= I915_ENGINE_HAS_TIMESLICES; + /* Wa_14014475959:dg2 */ + if (IS_DG2(engine->i915) && engine->class == COMPUTE_CLASS) + engine->flags |= I915_ENGINE_USES_WA_HOLD_CCS_SWITCHOUT; + /* * TODO: GuC supports timeslicing and semaphores as well, but they're * handled by the firmware so some minor tweaks are required before @@ -3835,32 +4037,32 @@ void intel_guc_submission_init_early(struct intel_guc *guc) spin_lock_init(&guc->timestamp.lock); INIT_DELAYED_WORK(&guc->timestamp.work, guc_timestamp_ping); - guc->submission_state.num_guc_ids = GUC_MAX_LRC_DESCRIPTORS; + guc->submission_state.num_guc_ids = GUC_MAX_CONTEXT_ID; guc->submission_supported = __guc_submission_supported(guc); guc->submission_selected = __guc_submission_selected(guc); } static inline struct intel_context * -g2h_context_lookup(struct intel_guc *guc, u32 desc_idx) +g2h_context_lookup(struct intel_guc *guc, u32 ctx_id) { struct intel_context *ce; - if (unlikely(desc_idx >= GUC_MAX_LRC_DESCRIPTORS)) { + if (unlikely(ctx_id >= GUC_MAX_CONTEXT_ID)) { drm_err(&guc_to_gt(guc)->i915->drm, - "Invalid desc_idx %u", desc_idx); + "Invalid ctx_id %u\n", ctx_id); return NULL; } - ce = __get_context(guc, desc_idx); + ce = __get_context(guc, ctx_id); if (unlikely(!ce)) { drm_err(&guc_to_gt(guc)->i915->drm, - "Context is NULL, desc_idx %u", desc_idx); + "Context is NULL, ctx_id %u\n", ctx_id); return NULL; } if (unlikely(intel_context_is_child(ce))) { drm_err(&guc_to_gt(guc)->i915->drm, - "Context is child, desc_idx %u", desc_idx); + "Context is child, ctx_id %u\n", ctx_id); return NULL; } @@ -3872,14 +4074,15 @@ int intel_guc_deregister_done_process_msg(struct intel_guc *guc, u32 len) { struct intel_context *ce; - u32 desc_idx = msg[0]; + u32 ctx_id; if (unlikely(len < 1)) { - drm_err(&guc_to_gt(guc)->i915->drm, "Invalid length %u", len); + drm_err(&guc_to_gt(guc)->i915->drm, "Invalid length %u\n", len); return -EPROTO; } + ctx_id = msg[0]; - ce = g2h_context_lookup(guc, desc_idx); + ce = g2h_context_lookup(guc, ctx_id); if (unlikely(!ce)) return -EPROTO; @@ -3923,14 +4126,15 @@ int intel_guc_sched_done_process_msg(struct intel_guc *guc, { struct intel_context *ce; unsigned long flags; - u32 desc_idx = msg[0]; + u32 ctx_id; if (unlikely(len < 2)) { - drm_err(&guc_to_gt(guc)->i915->drm, "Invalid length %u", len); + drm_err(&guc_to_gt(guc)->i915->drm, "Invalid length %u\n", len); return -EPROTO; } + ctx_id = msg[0]; - ce = g2h_context_lookup(guc, desc_idx); + ce = g2h_context_lookup(guc, ctx_id); if (unlikely(!ce)) return -EPROTO; @@ -3938,8 +4142,8 @@ int intel_guc_sched_done_process_msg(struct intel_guc *guc, (!context_pending_enable(ce) && !context_pending_disable(ce)))) { drm_err(&guc_to_gt(guc)->i915->drm, - "Bad context sched_state 0x%x, desc_idx %u", - ce->guc_state.sched_state, desc_idx); + "Bad context sched_state 0x%x, ctx_id %u\n", + ce->guc_state.sched_state, ctx_id); return -EPROTO; } @@ -4005,7 +4209,7 @@ static void capture_error_state(struct intel_guc *guc, intel_engine_set_hung_context(engine, ce); with_intel_runtime_pm(&i915->runtime_pm, wakeref) - i915_capture_error_state(gt, engine->mask); + i915_capture_error_state(gt, engine->mask, CORE_DUMP_FLAG_IS_GUC_CAPTURE); atomic_inc(&i915->gpu_error.reset_engine_count[engine->uabi_class]); } @@ -4037,14 +4241,14 @@ int intel_guc_context_reset_process_msg(struct intel_guc *guc, { struct intel_context *ce; unsigned long flags; - int desc_idx; + int ctx_id; if (unlikely(len != 1)) { drm_err(&guc_to_gt(guc)->i915->drm, "Invalid length %u", len); return -EPROTO; } - desc_idx = msg[0]; + ctx_id = msg[0]; /* * The context lookup uses the xarray but lookups only require an RCU lock @@ -4053,7 +4257,7 @@ int intel_guc_context_reset_process_msg(struct intel_guc *guc, * asynchronously until the reset is done. */ xa_lock_irqsave(&guc->context_lookup, flags); - ce = g2h_context_lookup(guc, desc_idx); + ce = g2h_context_lookup(guc, ctx_id); if (ce) intel_context_get(ce); xa_unlock_irqrestore(&guc->context_lookup, flags); @@ -4070,23 +4274,24 @@ int intel_guc_context_reset_process_msg(struct intel_guc *guc, int intel_guc_error_capture_process_msg(struct intel_guc *guc, const u32 *msg, u32 len) { - int status; + u32 status; if (unlikely(len != 1)) { drm_dbg(&guc_to_gt(guc)->i915->drm, "Invalid length %u", len); return -EPROTO; } - status = msg[0]; - drm_info(&guc_to_gt(guc)->i915->drm, "Got error capture: status = %d", status); + status = msg[0] & INTEL_GUC_STATE_CAPTURE_EVENT_STATUS_MASK; + if (status == INTEL_GUC_STATE_CAPTURE_EVENT_STATUS_NOSPACE) + drm_warn(&guc_to_gt(guc)->i915->drm, "G2H-Error capture no space"); - /* FIXME: Do something with the capture */ + intel_guc_capture_process(guc); return 0; } -static struct intel_engine_cs * -guc_lookup_engine(struct intel_guc *guc, u8 guc_class, u8 instance) +struct intel_engine_cs * +intel_guc_lookup_engine(struct intel_guc *guc, u8 guc_class, u8 instance) { struct intel_gt *gt = guc_to_gt(guc); u8 engine_class = guc_class_to_engine_class(guc_class); @@ -4135,7 +4340,7 @@ int intel_guc_engine_failure_process_msg(struct intel_guc *guc, instance = msg[1]; reason = msg[2]; - engine = guc_lookup_engine(guc, guc_class, instance); + engine = intel_guc_lookup_engine(guc, guc_class, instance); if (unlikely(!engine)) { drm_err(>->i915->drm, "Invalid engine %d:%d", guc_class, instance); @@ -4333,17 +4538,17 @@ void intel_guc_submission_print_context_info(struct intel_guc *guc, guc_log_context_priority(p, ce); if (intel_context_is_parent(ce)) { - struct guc_process_desc *desc = __get_process_desc(ce); + struct guc_sched_wq_desc *wq_desc = __get_wq_desc(ce); struct intel_context *child; drm_printf(p, "\t\tNumber children: %u\n", ce->parallel.number_children); drm_printf(p, "\t\tWQI Head: %u\n", - READ_ONCE(desc->head)); + READ_ONCE(wq_desc->head)); drm_printf(p, "\t\tWQI Tail: %u\n", - READ_ONCE(desc->tail)); + READ_ONCE(wq_desc->tail)); drm_printf(p, "\t\tWQI Status: %u\n\n", - READ_ONCE(desc->wq_status)); + READ_ONCE(wq_desc->wq_status)); if (ce->engine->emit_bb_start == emit_bb_start_parent_no_preempt_mid_batch) { diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c index 541f180aaa29..a876d39e6bcf 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c @@ -53,21 +53,21 @@ void intel_uc_fw_change_status(struct intel_uc_fw *uc_fw, * firmware as TGL. */ #define INTEL_GUC_FIRMWARE_DEFS(fw_def, guc_def) \ - fw_def(ALDERLAKE_P, 0, guc_def(adlp, 69, 0, 3)) \ - fw_def(ALDERLAKE_S, 0, guc_def(tgl, 69, 0, 3)) \ - fw_def(DG1, 0, guc_def(dg1, 69, 0, 3)) \ - fw_def(ROCKETLAKE, 0, guc_def(tgl, 69, 0, 3)) \ - fw_def(TIGERLAKE, 0, guc_def(tgl, 69, 0, 3)) \ - fw_def(JASPERLAKE, 0, guc_def(ehl, 69, 0, 3)) \ - fw_def(ELKHARTLAKE, 0, guc_def(ehl, 69, 0, 3)) \ - fw_def(ICELAKE, 0, guc_def(icl, 69, 0, 3)) \ - fw_def(COMETLAKE, 5, guc_def(cml, 69, 0, 3)) \ - fw_def(COMETLAKE, 0, guc_def(kbl, 69, 0, 3)) \ - fw_def(COFFEELAKE, 0, guc_def(kbl, 69, 0, 3)) \ - fw_def(GEMINILAKE, 0, guc_def(glk, 69, 0, 3)) \ - fw_def(KABYLAKE, 0, guc_def(kbl, 69, 0, 3)) \ - fw_def(BROXTON, 0, guc_def(bxt, 69, 0, 3)) \ - fw_def(SKYLAKE, 0, guc_def(skl, 69, 0, 3)) + fw_def(ALDERLAKE_P, 0, guc_def(adlp, 70, 1, 1)) \ + fw_def(ALDERLAKE_S, 0, guc_def(tgl, 70, 1, 1)) \ + fw_def(DG1, 0, guc_def(dg1, 70, 1, 1)) \ + fw_def(ROCKETLAKE, 0, guc_def(tgl, 70, 1, 1)) \ + fw_def(TIGERLAKE, 0, guc_def(tgl, 70, 1, 1)) \ + fw_def(JASPERLAKE, 0, guc_def(ehl, 70, 1, 1)) \ + fw_def(ELKHARTLAKE, 0, guc_def(ehl, 70, 1, 1)) \ + fw_def(ICELAKE, 0, guc_def(icl, 70, 1, 1)) \ + fw_def(COMETLAKE, 5, guc_def(cml, 70, 1, 1)) \ + fw_def(COMETLAKE, 0, guc_def(kbl, 70, 1, 1)) \ + fw_def(COFFEELAKE, 0, guc_def(kbl, 70, 1, 1)) \ + fw_def(GEMINILAKE, 0, guc_def(glk, 70, 1, 1)) \ + fw_def(KABYLAKE, 0, guc_def(kbl, 70, 1, 1)) \ + fw_def(BROXTON, 0, guc_def(bxt, 70, 1, 1)) \ + fw_def(SKYLAKE, 0, guc_def(skl, 70, 1, 1)) #define INTEL_HUC_FIRMWARE_DEFS(fw_def, huc_def) \ fw_def(ALDERLAKE_P, 0, huc_def(tgl, 7, 9, 3)) \ diff --git a/drivers/gpu/drm/i915/gt/uc/selftest_guc.c b/drivers/gpu/drm/i915/gt/uc/selftest_guc.c index a115894d5896..1df71d0796ae 100644 --- a/drivers/gpu/drm/i915/gt/uc/selftest_guc.c +++ b/drivers/gpu/drm/i915/gt/uc/selftest_guc.c @@ -148,7 +148,7 @@ static int intel_guc_steal_guc_ids(void *arg) struct i915_request *spin_rq = NULL, *rq, *last = NULL; int number_guc_id_stolen = guc->number_guc_id_stolen; - ce = kzalloc(sizeof(*ce) * GUC_MAX_LRC_DESCRIPTORS, GFP_KERNEL); + ce = kcalloc(GUC_MAX_CONTEXT_ID, sizeof(*ce), GFP_KERNEL); if (!ce) { pr_err("Context array allocation failed\n"); return -ENOMEM; diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 02239395ce81..94e5c29d2ee3 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -309,7 +309,8 @@ static int i915_gpu_info_open(struct inode *inode, struct file *file) gpu = NULL; with_intel_runtime_pm(&i915->runtime_pm, wakeref) - gpu = i915_gpu_coredump(to_gt(i915), ALL_ENGINES); + gpu = i915_gpu_coredump(to_gt(i915), ALL_ENGINES, CORE_DUMP_FLAG_NONE); + if (IS_ERR(gpu)) return PTR_ERR(gpu); @@ -582,8 +583,9 @@ static int i915_wedged_get(void *data, u64 *val) static int i915_wedged_set(void *data, u64 val) { struct drm_i915_private *i915 = data; + intel_gt_debugfs_reset_store(to_gt(i915), val); - return intel_gt_debugfs_reset_store(to_gt(i915), val); + return 0; } DEFINE_SIMPLE_ATTRIBUTE(i915_wedged_fops, @@ -731,15 +733,17 @@ static int i915_sseu_status(struct seq_file *m, void *unused) static int i915_forcewake_open(struct inode *inode, struct file *file) { struct drm_i915_private *i915 = inode->i_private; + intel_gt_pm_debugfs_forcewake_user_open(to_gt(i915)); - return intel_gt_pm_debugfs_forcewake_user_open(to_gt(i915)); + return 0; } static int i915_forcewake_release(struct inode *inode, struct file *file) { struct drm_i915_private *i915 = inode->i_private; + intel_gt_pm_debugfs_forcewake_user_release(to_gt(i915)); - return intel_gt_pm_debugfs_forcewake_user_release(to_gt(i915)); + return 0; } static const struct file_operations i915_forcewake_fops = { diff --git a/drivers/gpu/drm/i915/i915_driver.c b/drivers/gpu/drm/i915/i915_driver.c index 09de45d3e274..3ffb617d75c9 100644 --- a/drivers/gpu/drm/i915/i915_driver.c +++ b/drivers/gpu/drm/i915/i915_driver.c @@ -77,6 +77,7 @@ #include "i915_file_private.h" #include "i915_debugfs.h" #include "i915_driver.h" +#include "i915_drm_client.h" #include "i915_drv.h" #include "i915_getparam.h" #include "i915_ioc32.h" @@ -322,9 +323,7 @@ static int i915_driver_early_probe(struct drm_i915_private *dev_priv) intel_device_info_subplatform_init(dev_priv); intel_step_init(dev_priv); - intel_gt_init_early(to_gt(dev_priv), dev_priv); intel_uncore_mmio_debug_init_early(&dev_priv->mmio_debug); - intel_uncore_init_early(&dev_priv->uncore, to_gt(dev_priv)); spin_lock_init(&dev_priv->irq_lock); spin_lock_init(&dev_priv->gpu_error.lock); @@ -355,7 +354,9 @@ static int i915_driver_early_probe(struct drm_i915_private *dev_priv) intel_wopcm_init_early(&dev_priv->wopcm); - __intel_gt_init_early(to_gt(dev_priv), dev_priv); + intel_root_gt_init_early(dev_priv); + + i915_drm_clients_init(&dev_priv->clients, dev_priv); i915_gem_init_early(dev_priv); @@ -376,7 +377,8 @@ static int i915_driver_early_probe(struct drm_i915_private *dev_priv) err_gem: i915_gem_cleanup_early(dev_priv); - intel_gt_driver_late_release(to_gt(dev_priv)); + intel_gt_driver_late_release_all(dev_priv); + i915_drm_clients_fini(&dev_priv->clients); intel_region_ttm_device_fini(dev_priv); err_ttm: vlv_suspend_cleanup(dev_priv); @@ -395,7 +397,8 @@ static void i915_driver_late_release(struct drm_i915_private *dev_priv) intel_irq_fini(dev_priv); intel_power_domains_cleanup(dev_priv); i915_gem_cleanup_early(dev_priv); - intel_gt_driver_late_release(to_gt(dev_priv)); + intel_gt_driver_late_release_all(dev_priv); + i915_drm_clients_fini(&dev_priv->clients); intel_region_ttm_device_fini(dev_priv); vlv_suspend_cleanup(dev_priv); i915_workqueues_cleanup(dev_priv); @@ -426,13 +429,9 @@ static int i915_driver_mmio_probe(struct drm_i915_private *dev_priv) if (ret < 0) return ret; - ret = intel_uncore_setup_mmio(&dev_priv->uncore); - if (ret < 0) - goto err_bridge; - ret = intel_uncore_init_mmio(&dev_priv->uncore); if (ret) - goto err_mmio; + return ret; /* Try to make sure MCHBAR is enabled before poking at it */ intel_setup_mchbar(dev_priv); @@ -450,9 +449,6 @@ static int i915_driver_mmio_probe(struct drm_i915_private *dev_priv) err_uncore: intel_teardown_mchbar(dev_priv); intel_uncore_fini_mmio(&dev_priv->uncore); -err_mmio: - intel_uncore_cleanup_mmio(&dev_priv->uncore); -err_bridge: pci_dev_put(dev_priv->bridge_dev); return ret; @@ -466,7 +462,6 @@ static void i915_driver_mmio_release(struct drm_i915_private *dev_priv) { intel_teardown_mchbar(dev_priv); intel_uncore_fini_mmio(&dev_priv->uncore); - intel_uncore_cleanup_mmio(&dev_priv->uncore); pci_dev_put(dev_priv->bridge_dev); } @@ -599,7 +594,7 @@ static int i915_driver_hw_probe(struct drm_i915_private *dev_priv) if (ret) goto err_ggtt; - ret = intel_gt_probe_lmem(to_gt(dev_priv)); + ret = intel_gt_tiles_init(dev_priv); if (ret) goto err_mem_regions; @@ -850,10 +845,14 @@ int i915_driver_probe(struct pci_dev *pdev, const struct pci_device_id *ent) intel_vgpu_detect(i915); - ret = i915_driver_mmio_probe(i915); + ret = intel_gt_probe_all(i915); if (ret < 0) goto out_runtime_pm_put; + ret = i915_driver_mmio_probe(i915); + if (ret < 0) + goto out_tiles_cleanup; + ret = i915_driver_hw_probe(i915); if (ret < 0) goto out_cleanup_mmio; @@ -910,6 +909,8 @@ out_cleanup_hw: i915_ggtt_driver_late_release(i915); out_cleanup_mmio: i915_driver_mmio_release(i915); +out_tiles_cleanup: + intel_gt_release_all(i915); out_runtime_pm_put: enable_rpm_wakeref_asserts(&i915->runtime_pm); i915_driver_late_release(i915); @@ -1013,6 +1014,7 @@ static void i915_driver_postclose(struct drm_device *dev, struct drm_file *file) struct drm_i915_file_private *file_priv = file->driver_priv; i915_gem_context_close(file); + i915_drm_client_put(file_priv->client); kfree_rcu(file_priv, rcu); @@ -1743,6 +1745,9 @@ static const struct file_operations i915_driver_fops = { .read = drm_read, .compat_ioctl = i915_ioc32_compat_ioctl, .llseek = noop_llseek, +#ifdef CONFIG_PROC_FS + .show_fdinfo = i915_drm_client_fdinfo, +#endif }; static int diff --git a/drivers/gpu/drm/i915/i915_drm_client.c b/drivers/gpu/drm/i915/i915_drm_client.c new file mode 100644 index 000000000000..475a6f824cad --- /dev/null +++ b/drivers/gpu/drm/i915/i915_drm_client.c @@ -0,0 +1,158 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright © 2020 Intel Corporation + */ + +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/types.h> + +#include <uapi/drm/i915_drm.h> + +#include <drm/drm_print.h> + +#include "gem/i915_gem_context.h" +#include "i915_drm_client.h" +#include "i915_file_private.h" +#include "i915_gem.h" +#include "i915_utils.h" + +void i915_drm_clients_init(struct i915_drm_clients *clients, + struct drm_i915_private *i915) +{ + clients->i915 = i915; + clients->next_id = 0; + + xa_init_flags(&clients->xarray, XA_FLAGS_ALLOC | XA_FLAGS_LOCK_IRQ); +} + +struct i915_drm_client *i915_drm_client_add(struct i915_drm_clients *clients) +{ + struct i915_drm_client *client; + struct xarray *xa = &clients->xarray; + int ret; + + client = kzalloc(sizeof(*client), GFP_KERNEL); + if (!client) + return ERR_PTR(-ENOMEM); + + xa_lock_irq(xa); + ret = __xa_alloc_cyclic(xa, &client->id, client, xa_limit_32b, + &clients->next_id, GFP_KERNEL); + xa_unlock_irq(xa); + if (ret < 0) + goto err; + + kref_init(&client->kref); + spin_lock_init(&client->ctx_lock); + INIT_LIST_HEAD(&client->ctx_list); + client->clients = clients; + + return client; + +err: + kfree(client); + + return ERR_PTR(ret); +} + +void __i915_drm_client_free(struct kref *kref) +{ + struct i915_drm_client *client = + container_of(kref, typeof(*client), kref); + struct xarray *xa = &client->clients->xarray; + unsigned long flags; + + xa_lock_irqsave(xa, flags); + __xa_erase(xa, client->id); + xa_unlock_irqrestore(xa, flags); + kfree(client); +} + +void i915_drm_clients_fini(struct i915_drm_clients *clients) +{ + GEM_BUG_ON(!xa_empty(&clients->xarray)); + xa_destroy(&clients->xarray); +} + +#ifdef CONFIG_PROC_FS +static const char * const uabi_class_names[] = { + [I915_ENGINE_CLASS_RENDER] = "render", + [I915_ENGINE_CLASS_COPY] = "copy", + [I915_ENGINE_CLASS_VIDEO] = "video", + [I915_ENGINE_CLASS_VIDEO_ENHANCE] = "video-enhance", +}; + +static u64 busy_add(struct i915_gem_context *ctx, unsigned int class) +{ + struct i915_gem_engines_iter it; + struct intel_context *ce; + u64 total = 0; + + for_each_gem_engine(ce, rcu_dereference(ctx->engines), it) { + if (ce->engine->uabi_class != class) + continue; + + total += intel_context_get_total_runtime_ns(ce); + } + + return total; +} + +static void +show_client_class(struct seq_file *m, + struct i915_drm_client *client, + unsigned int class) +{ + const struct list_head *list = &client->ctx_list; + u64 total = atomic64_read(&client->past_runtime[class]); + const unsigned int capacity = + client->clients->i915->engine_uabi_class_count[class]; + struct i915_gem_context *ctx; + + rcu_read_lock(); + list_for_each_entry_rcu(ctx, list, client_link) + total += busy_add(ctx, class); + rcu_read_unlock(); + + seq_printf(m, "drm-engine-%s:\t%llu ns\n", + uabi_class_names[class], total); + + if (capacity > 1) + seq_printf(m, "drm-engine-capacity-%s:\t%u\n", + uabi_class_names[class], + capacity); +} + +void i915_drm_client_fdinfo(struct seq_file *m, struct file *f) +{ + struct drm_file *file = f->private_data; + struct drm_i915_file_private *file_priv = file->driver_priv; + struct drm_i915_private *i915 = file_priv->dev_priv; + struct i915_drm_client *client = file_priv->client; + struct pci_dev *pdev = to_pci_dev(i915->drm.dev); + unsigned int i; + + /* + * ****************************************************************** + * For text output format description please see drm-usage-stats.rst! + * ****************************************************************** + */ + + seq_printf(m, "drm-driver:\t%s\n", i915->drm.driver->name); + seq_printf(m, "drm-pdev:\t%04x:%02x:%02x.%d\n", + pci_domain_nr(pdev->bus), pdev->bus->number, + PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn)); + seq_printf(m, "drm-client-id:\t%u\n", client->id); + + /* + * Temporarily skip showing client engine information with GuC submission till + * fetching engine busyness is implemented in the GuC submission backend + */ + if (GRAPHICS_VER(i915) < 8 || intel_uc_uses_guc_submission(&i915->gt0.uc)) + return; + + for (i = 0; i < ARRAY_SIZE(uabi_class_names); i++) + show_client_class(m, client, i); +} +#endif diff --git a/drivers/gpu/drm/i915/i915_drm_client.h b/drivers/gpu/drm/i915/i915_drm_client.h new file mode 100644 index 000000000000..5f5b02b01ba0 --- /dev/null +++ b/drivers/gpu/drm/i915/i915_drm_client.h @@ -0,0 +1,68 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright © 2020 Intel Corporation + */ + +#ifndef __I915_DRM_CLIENT_H__ +#define __I915_DRM_CLIENT_H__ + +#include <linux/kref.h> +#include <linux/list.h> +#include <linux/spinlock.h> +#include <linux/xarray.h> + +#include "gt/intel_engine_types.h" + +#define I915_LAST_UABI_ENGINE_CLASS I915_ENGINE_CLASS_VIDEO_ENHANCE + +struct drm_i915_private; + +struct i915_drm_clients { + struct drm_i915_private *i915; + + struct xarray xarray; + u32 next_id; +}; + +struct i915_drm_client { + struct kref kref; + + unsigned int id; + + spinlock_t ctx_lock; /* For add/remove from ctx_list. */ + struct list_head ctx_list; /* List of contexts belonging to client. */ + + struct i915_drm_clients *clients; + + /** + * @past_runtime: Accumulation of pphwsp runtimes from closed contexts. + */ + atomic64_t past_runtime[I915_LAST_UABI_ENGINE_CLASS + 1]; +}; + +void i915_drm_clients_init(struct i915_drm_clients *clients, + struct drm_i915_private *i915); + +static inline struct i915_drm_client * +i915_drm_client_get(struct i915_drm_client *client) +{ + kref_get(&client->kref); + return client; +} + +void __i915_drm_client_free(struct kref *kref); + +static inline void i915_drm_client_put(struct i915_drm_client *client) +{ + kref_put(&client->kref, __i915_drm_client_free); +} + +struct i915_drm_client *i915_drm_client_add(struct i915_drm_clients *clients); + +#ifdef CONFIG_PROC_FS +void i915_drm_client_fdinfo(struct seq_file *m, struct file *f); +#endif + +void i915_drm_clients_fini(struct i915_drm_clients *clients); + +#endif /* !__I915_DRM_CLIENT_H__ */ diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index ce2cd6491d6d..a6cf9716d6aa 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -61,6 +61,7 @@ #include "gt/intel_workarounds.h" #include "gt/uc/intel_uc.h" +#include "i915_drm_client.h" #include "i915_gem.h" #include "i915_gpu_error.h" #include "i915_params.h" @@ -500,6 +501,7 @@ struct drm_i915_private { struct pci_dev *bridge_dev; struct rb_root uabi_engines; + unsigned int engine_uabi_class_count[I915_LAST_UABI_ENGINE_CLASS + 1]; struct resource mch_res; @@ -766,6 +768,14 @@ struct drm_i915_private { /* Abstract the submission mechanism (legacy ringbuffer or execlists) away */ struct intel_gt gt0; + /* + * i915->gt[0] == &i915->gt0 + */ +#define I915_MAX_GT 4 + struct intel_gt *gt[I915_MAX_GT]; + + struct kobject *sysfs_gt; + struct { struct i915_gem_contexts { spinlock_t lock; /* locks list */ @@ -810,6 +820,8 @@ struct drm_i915_private { struct i915_pmu pmu; + struct i915_drm_clients clients; + struct i915_hdcp_comp_master *hdcp_master; bool hdcp_comp_added; @@ -1201,6 +1213,8 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915, ((gt)->info.engine_mask & \ GENMASK(first__ + count__ - 1, first__)) >> first__; \ }) +#define RCS_MASK(gt) \ + ENGINE_INSTANCES_MASK(gt, RCS0, I915_MAX_RCS) #define VDBOX_MASK(gt) \ ENGINE_INSTANCES_MASK(gt, VCS0, I915_MAX_VCS) #define VEBOX_MASK(gt) \ @@ -1294,6 +1308,14 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915, #define HAS_DMC(dev_priv) (INTEL_INFO(dev_priv)->display.has_dmc) +#define HAS_HECI_PXP(dev_priv) \ + (INTEL_INFO(dev_priv)->has_heci_pxp) + +#define HAS_HECI_GSCFI(dev_priv) \ + (INTEL_INFO(dev_priv)->has_heci_gscfi) + +#define HAS_HECI_GSC(dev_priv) (HAS_HECI_PXP(dev_priv) || HAS_HECI_GSCFI(dev_priv)) + #define HAS_MSO(i915) (DISPLAY_VER(i915) >= 12) #define HAS_RUNTIME_PM(dev_priv) (INTEL_INFO(dev_priv)->has_runtime_pm) @@ -1363,6 +1385,9 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915, #define HAS_GUC_DEPRIVILEGE(dev_priv) \ (INTEL_INFO(dev_priv)->has_guc_deprivilege) +#define HAS_PERCTX_PREEMPT_CTRL(i915) \ + ((GRAPHICS_VER(i915) >= 9) && GRAPHICS_VER_FULL(i915) < IP_VER(12, 55)) + #define HAS_D12_PLANE_MINIMIZATION(dev_priv) (IS_ROCKETLAKE(dev_priv) || \ IS_ALDERLAKE_S(dev_priv)) diff --git a/drivers/gpu/drm/i915/i915_file_private.h b/drivers/gpu/drm/i915/i915_file_private.h index fb16cc431b2a..f42877869692 100644 --- a/drivers/gpu/drm/i915/i915_file_private.h +++ b/drivers/gpu/drm/i915/i915_file_private.h @@ -12,6 +12,7 @@ struct drm_i915_private; struct drm_file; +struct i915_drm_client; struct drm_i915_file_private { struct drm_i915_private *dev_priv; @@ -103,6 +104,8 @@ struct drm_i915_file_private { /** ban_score: Accumulated score of all ctx bans and fast hangs. */ atomic_t ban_score; unsigned long hang_timestamp; + + struct i915_drm_client *client; }; #endif /* __I915_FILE_PRIVATE_H__ */ diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 2e10187cd0a0..702e5b89be22 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -118,6 +118,7 @@ int i915_gem_object_unbind(struct drm_i915_gem_object *obj, unsigned long flags) { struct intel_runtime_pm *rpm = &to_i915(obj->base.dev)->runtime_pm; + bool vm_trylock = !!(flags & I915_GEM_OBJECT_UNBIND_VM_TRYLOCK); LIST_HEAD(still_in_list); intel_wakeref_t wakeref; struct i915_vma *vma; @@ -142,8 +143,6 @@ try_again: while (!ret && (vma = list_first_entry_or_null(&obj->vma.list, struct i915_vma, obj_link))) { - struct i915_address_space *vm = vma->vm; - list_move_tail(&vma->obj_link, &still_in_list); if (!i915_vma_is_bound(vma, I915_VMA_BIND_MASK)) continue; @@ -153,40 +152,44 @@ try_again: break; } + /* + * Requiring the vm destructor to take the object lock + * before destroying a vma would help us eliminate the + * i915_vm_tryget() here, AND thus also the barrier stuff + * at the end. That's an easy fix, but sleeping locks in + * a kthread should generally be avoided. + */ ret = -EAGAIN; - if (!i915_vm_tryopen(vm)) + if (!i915_vm_tryget(vma->vm)) break; - /* Prevent vma being freed by i915_vma_parked as we unbind */ - vma = __i915_vma_get(vma); spin_unlock(&obj->vma.lock); - if (vma) { - bool vm_trylock = !!(flags & I915_GEM_OBJECT_UNBIND_VM_TRYLOCK); - ret = -EBUSY; - if (flags & I915_GEM_OBJECT_UNBIND_ASYNC) { - assert_object_held(vma->obj); - ret = i915_vma_unbind_async(vma, vm_trylock); - } + /* + * Since i915_vma_parked() takes the object lock + * before vma destruction, it won't race us here, + * and destroy the vma from under us. + */ - if (ret == -EBUSY && (flags & I915_GEM_OBJECT_UNBIND_ACTIVE || - !i915_vma_is_active(vma))) { - if (vm_trylock) { - if (mutex_trylock(&vma->vm->mutex)) { - ret = __i915_vma_unbind(vma); - mutex_unlock(&vma->vm->mutex); - } else { - ret = -EBUSY; - } - } else { - ret = i915_vma_unbind(vma); + ret = -EBUSY; + if (flags & I915_GEM_OBJECT_UNBIND_ASYNC) { + assert_object_held(vma->obj); + ret = i915_vma_unbind_async(vma, vm_trylock); + } + + if (ret == -EBUSY && (flags & I915_GEM_OBJECT_UNBIND_ACTIVE || + !i915_vma_is_active(vma))) { + if (vm_trylock) { + if (mutex_trylock(&vma->vm->mutex)) { + ret = __i915_vma_unbind(vma); + mutex_unlock(&vma->vm->mutex); } + } else { + ret = i915_vma_unbind(vma); } - - __i915_vma_put(vma); } - i915_vm_close(vm); + i915_vm_put(vma->vm); spin_lock(&obj->vma.lock); } list_splice_init(&still_in_list, &obj->vma.list); @@ -936,8 +939,19 @@ new_vma: if (i915_vma_is_pinned(vma) || i915_vma_is_active(vma)) return ERR_PTR(-ENOSPC); + /* + * If this misplaced vma is too big (i.e, at-least + * half the size of aperture) or hasn't been pinned + * mappable before, we ignore the misplacement when + * PIN_NONBLOCK is set in order to avoid the ping-pong + * issue described above. In other words, we try to + * avoid the costly operation of unbinding this vma + * from the GGTT and rebinding it back because there + * may not be enough space for this vma in the aperture. + */ if (flags & PIN_MAPPABLE && - vma->fence_size > ggtt->mappable_end / 2) + (vma->fence_size > ggtt->mappable_end / 2 || + !i915_vma_is_map_and_fenceable(vma))) return ERR_PTR(-ENOSPC); } @@ -1213,25 +1227,40 @@ void i915_gem_cleanup_early(struct drm_i915_private *dev_priv) int i915_gem_open(struct drm_i915_private *i915, struct drm_file *file) { struct drm_i915_file_private *file_priv; - int ret; + struct i915_drm_client *client; + int ret = -ENOMEM; DRM_DEBUG("\n"); file_priv = kzalloc(sizeof(*file_priv), GFP_KERNEL); if (!file_priv) - return -ENOMEM; + goto err_alloc; + + client = i915_drm_client_add(&i915->clients); + if (IS_ERR(client)) { + ret = PTR_ERR(client); + goto err_client; + } file->driver_priv = file_priv; file_priv->dev_priv = i915; file_priv->file = file; + file_priv->client = client; file_priv->bsd_engine = -1; file_priv->hang_timestamp = jiffies; ret = i915_gem_context_open(i915, file); if (ret) - kfree(file_priv); + goto err_context; + + return 0; +err_context: + i915_drm_client_put(client); +err_client: + kfree(file_priv); +err_alloc: return ret; } diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c index d0e7ee7b07df..0512c66fa4f3 100644 --- a/drivers/gpu/drm/i915/i915_gpu_error.c +++ b/drivers/gpu/drm/i915/i915_gpu_error.c @@ -48,6 +48,7 @@ #include "gt/intel_gt.h" #include "gt/intel_gt_pm.h" #include "gt/intel_gt_regs.h" +#include "gt/uc/intel_guc_capture.h" #include "i915_driver.h" #include "i915_drv.h" @@ -511,13 +512,10 @@ static void error_print_context(struct drm_i915_error_state_buf *m, const char *header, const struct i915_gem_context_coredump *ctx) { - const u32 period = to_gt(m->i915)->clock_period_ns; - err_printf(m, "%s%s[%d] prio %d, guilty %d active %d, runtime total %lluns, avg %lluns\n", header, ctx->comm, ctx->pid, ctx->sched_attr.priority, ctx->guilty, ctx->active, - ctx->total_runtime * period, - mul_u32_u32(ctx->avg_runtime, period)); + ctx->total_runtime, ctx->avg_runtime); } static struct i915_vma_coredump * @@ -532,8 +530,8 @@ __find_vma(struct i915_vma_coredump *vma, const char *name) return NULL; } -static struct i915_vma_coredump * -find_batch(const struct intel_engine_coredump *ee) +struct i915_vma_coredump * +intel_gpu_error_find_batch(const struct intel_engine_coredump *ee) { return __find_vma(ee->vma, "batch"); } @@ -561,7 +559,7 @@ static void error_print_engine(struct drm_i915_error_state_buf *m, error_print_instdone(m, ee); - batch = find_batch(ee); + batch = intel_gpu_error_find_batch(ee); if (batch) { u64 start = batch->gtt_offset; u64 end = start + batch->gtt_size; @@ -596,15 +594,11 @@ static void error_print_engine(struct drm_i915_error_state_buf *m, ee->vm_info.pp_dir_base); } } - err_printf(m, " hung: %u\n", ee->hung); - err_printf(m, " engine reset count: %u\n", ee->reset_count); for (n = 0; n < ee->num_ports; n++) { err_printf(m, " ELSP[%d]:", n); error_print_request(m, " ", &ee->execlist[n]); } - - error_print_context(m, " Active context: ", &ee->context); } void i915_error_printf(struct drm_i915_error_state_buf *e, const char *f, ...) @@ -616,9 +610,9 @@ void i915_error_printf(struct drm_i915_error_state_buf *e, const char *f, ...) va_end(args); } -static void print_error_vma(struct drm_i915_error_state_buf *m, - const struct intel_engine_cs *engine, - const struct i915_vma_coredump *vma) +void intel_gpu_error_print_vma(struct drm_i915_error_state_buf *m, + const struct intel_engine_cs *engine, + const struct i915_vma_coredump *vma) { char out[ASCII85_BUFSZ]; struct page *page; @@ -687,7 +681,7 @@ static void err_print_uc(struct drm_i915_error_state_buf *m, intel_uc_fw_dump(&error_uc->guc_fw, &p); intel_uc_fw_dump(&error_uc->huc_fw, &p); - print_error_vma(m, NULL, error_uc->guc_log); + intel_gpu_error_print_vma(m, NULL, error_uc->guc_log); } static void err_free_sgl(struct scatterlist *sgl) @@ -713,26 +707,33 @@ static void err_print_gt_info(struct drm_i915_error_state_buf *m, struct drm_printer p = i915_error_printer(m); intel_gt_info_print(>->info, &p); - intel_sseu_print_topology(>->info.sseu, &p); + intel_sseu_print_topology(gt->_gt->i915, >->info.sseu, &p); } -static void err_print_gt(struct drm_i915_error_state_buf *m, - struct intel_gt_coredump *gt) +static void err_print_gt_display(struct drm_i915_error_state_buf *m, + struct intel_gt_coredump *gt) +{ + err_printf(m, "IER: 0x%08x\n", gt->ier); + err_printf(m, "DERRMR: 0x%08x\n", gt->derrmr); +} + +static void err_print_gt_global_nonguc(struct drm_i915_error_state_buf *m, + struct intel_gt_coredump *gt) { - const struct intel_engine_coredump *ee; int i; err_printf(m, "GT awake: %s\n", str_yes_no(gt->awake)); err_printf(m, "EIR: 0x%08x\n", gt->eir); - err_printf(m, "IER: 0x%08x\n", gt->ier); + err_printf(m, "PGTBL_ER: 0x%08x\n", gt->pgtbl_er); + for (i = 0; i < gt->ngtier; i++) err_printf(m, "GTIER[%d]: 0x%08x\n", i, gt->gtier[i]); - err_printf(m, "PGTBL_ER: 0x%08x\n", gt->pgtbl_er); - err_printf(m, "FORCEWAKE: 0x%08x\n", gt->forcewake); - err_printf(m, "DERRMR: 0x%08x\n", gt->derrmr); +} - for (i = 0; i < gt->nfence; i++) - err_printf(m, " fence[%d] = %08llx\n", i, gt->fence[i]); +static void err_print_gt_global(struct drm_i915_error_state_buf *m, + struct intel_gt_coredump *gt) +{ + err_printf(m, "FORCEWAKE: 0x%08x\n", gt->forcewake); if (IS_GRAPHICS_VER(m->i915, 6, 11)) { err_printf(m, "ERROR: 0x%08x\n", gt->error); @@ -755,7 +756,7 @@ static void err_print_gt(struct drm_i915_error_state_buf *m, if (GRAPHICS_VER(m->i915) >= 12) { int i; - for (i = 0; i < GEN12_SFC_DONE_MAX; i++) { + for (i = 0; i < I915_MAX_SFC; i++) { /* * SFC_DONE resides in the VD forcewake domain, so it * only exists if the corresponding VCS engine is @@ -771,19 +772,38 @@ static void err_print_gt(struct drm_i915_error_state_buf *m, err_printf(m, " GAM_DONE: 0x%08x\n", gt->gam_done); } +} + +static void err_print_gt_fences(struct drm_i915_error_state_buf *m, + struct intel_gt_coredump *gt) +{ + int i; + + for (i = 0; i < gt->nfence; i++) + err_printf(m, " fence[%d] = %08llx\n", i, gt->fence[i]); +} + +static void err_print_gt_engines(struct drm_i915_error_state_buf *m, + struct intel_gt_coredump *gt) +{ + const struct intel_engine_coredump *ee; for (ee = gt->engine; ee; ee = ee->next) { const struct i915_vma_coredump *vma; - error_print_engine(m, ee); + if (ee->guc_capture_node) + intel_guc_capture_print_engine_node(m, ee); + else + error_print_engine(m, ee); + + err_printf(m, " hung: %u\n", ee->hung); + err_printf(m, " engine reset count: %u\n", ee->reset_count); + error_print_context(m, " Active context: ", &ee->context); + for (vma = ee->vma; vma; vma = vma->next) - print_error_vma(m, ee->engine, vma); + intel_gpu_error_print_vma(m, ee->engine, vma); } - if (gt->uc) - err_print_uc(m, gt->uc); - - err_print_gt_info(m, gt); } static void __err_print_to_sgl(struct drm_i915_error_state_buf *m, @@ -831,8 +851,30 @@ static void __err_print_to_sgl(struct drm_i915_error_state_buf *m, err_printf(m, "RPM wakelock: %s\n", str_yes_no(error->wakelock)); err_printf(m, "PM suspended: %s\n", str_yes_no(error->suspended)); - if (error->gt) - err_print_gt(m, error->gt); + if (error->gt) { + bool print_guc_capture = false; + + if (error->gt->uc && error->gt->uc->is_guc_capture) + print_guc_capture = true; + + err_print_gt_display(m, error->gt); + err_print_gt_global_nonguc(m, error->gt); + err_print_gt_fences(m, error->gt); + + /* + * GuC dumped global, eng-class and eng-instance registers together + * as part of engine state dump so we print in err_print_gt_engines + */ + if (!print_guc_capture) + err_print_gt_global(m, error->gt); + + err_print_gt_engines(m, error->gt); + + if (error->gt->uc) + err_print_uc(m, error->gt->uc); + + err_print_gt_info(m, error->gt); + } if (error->overlay) intel_overlay_print_error_state(m, error->overlay); @@ -980,6 +1022,7 @@ static void cleanup_gt(struct intel_gt_coredump *gt) gt->engine = ee->next; i915_vma_coredump_free(ee->vma); + intel_guc_capture_free_node(ee); kfree(ee); } @@ -1313,8 +1356,8 @@ static bool record_context(struct i915_gem_context_coredump *e, e->guilty = atomic_read(&ctx->guilty_count); e->active = atomic_read(&ctx->active_count); - e->total_runtime = rq->context->runtime.total; - e->avg_runtime = ewma_runtime_read(&rq->context->runtime.avg); + e->total_runtime = intel_context_get_total_runtime_ns(rq->context); + e->avg_runtime = intel_context_get_avg_runtime_ns(rq->context); simulated = i915_gem_context_no_error_capture(ctx); @@ -1431,7 +1474,7 @@ static void add_vma_coredump(struct intel_engine_coredump *ee, } struct intel_engine_coredump * -intel_engine_coredump_alloc(struct intel_engine_cs *engine, gfp_t gfp) +intel_engine_coredump_alloc(struct intel_engine_cs *engine, gfp_t gfp, u32 dump_flags) { struct intel_engine_coredump *ee; @@ -1441,8 +1484,10 @@ intel_engine_coredump_alloc(struct intel_engine_cs *engine, gfp_t gfp) ee->engine = engine; - engine_record_registers(ee); - engine_record_execlists(ee); + if (!(dump_flags & CORE_DUMP_FLAG_IS_GUC_CAPTURE)) { + engine_record_registers(ee); + engine_record_execlists(ee); + } return ee; } @@ -1506,7 +1551,8 @@ intel_engine_coredump_add_vma(struct intel_engine_coredump *ee, static struct intel_engine_coredump * capture_engine(struct intel_engine_cs *engine, - struct i915_vma_compress *compress) + struct i915_vma_compress *compress, + u32 dump_flags) { struct intel_engine_capture_vma *capture = NULL; struct intel_engine_coredump *ee; @@ -1514,7 +1560,7 @@ capture_engine(struct intel_engine_cs *engine, struct i915_request *rq = NULL; unsigned long flags; - ee = intel_engine_coredump_alloc(engine, ALLOW_FAIL); + ee = intel_engine_coredump_alloc(engine, ALLOW_FAIL, dump_flags); if (!ee) return NULL; @@ -1547,6 +1593,8 @@ capture_engine(struct intel_engine_cs *engine, i915_request_put(rq); goto no_request_capture; } + if (dump_flags & CORE_DUMP_FLAG_IS_GUC_CAPTURE) + intel_guc_capture_get_matching_node(engine->gt, ee, ce); intel_engine_coredump_add_vma(ee, capture, compress); i915_request_put(rq); @@ -1561,7 +1609,8 @@ no_request_capture: static void gt_record_engines(struct intel_gt_coredump *gt, intel_engine_mask_t engine_mask, - struct i915_vma_compress *compress) + struct i915_vma_compress *compress, + u32 dump_flags) { struct intel_engine_cs *engine; enum intel_engine_id id; @@ -1572,7 +1621,7 @@ gt_record_engines(struct intel_gt_coredump *gt, /* Refill our page pool before entering atomic section */ pool_refill(&compress->pool, ALLOW_FAIL); - ee = capture_engine(engine, compress); + ee = capture_engine(engine, compress, dump_flags); if (!ee) continue; @@ -1580,6 +1629,8 @@ gt_record_engines(struct intel_gt_coredump *gt, gt->simulated |= ee->simulated; if (ee->simulated) { + if (dump_flags & CORE_DUMP_FLAG_IS_GUC_CAPTURE) + intel_guc_capture_free_node(ee); kfree(ee); continue; } @@ -1615,8 +1666,74 @@ gt_record_uc(struct intel_gt_coredump *gt, return error_uc; } -/* Capture all registers which don't fit into another category. */ -static void gt_record_regs(struct intel_gt_coredump *gt) +/* Capture display registers. */ +static void gt_record_display_regs(struct intel_gt_coredump *gt) +{ + struct intel_uncore *uncore = gt->_gt->uncore; + struct drm_i915_private *i915 = uncore->i915; + + if (GRAPHICS_VER(i915) >= 6) + gt->derrmr = intel_uncore_read(uncore, DERRMR); + + if (GRAPHICS_VER(i915) >= 8) + gt->ier = intel_uncore_read(uncore, GEN8_DE_MISC_IER); + else if (IS_VALLEYVIEW(i915)) + gt->ier = intel_uncore_read(uncore, VLV_IER); + else if (HAS_PCH_SPLIT(i915)) + gt->ier = intel_uncore_read(uncore, DEIER); + else if (GRAPHICS_VER(i915) == 2) + gt->ier = intel_uncore_read16(uncore, GEN2_IER); + else + gt->ier = intel_uncore_read(uncore, GEN2_IER); +} + +/* Capture all other registers that GuC doesn't capture. */ +static void gt_record_global_nonguc_regs(struct intel_gt_coredump *gt) +{ + struct intel_uncore *uncore = gt->_gt->uncore; + struct drm_i915_private *i915 = uncore->i915; + int i; + + if (IS_VALLEYVIEW(i915)) { + gt->gtier[0] = intel_uncore_read(uncore, GTIER); + gt->ngtier = 1; + } else if (GRAPHICS_VER(i915) >= 11) { + gt->gtier[0] = + intel_uncore_read(uncore, + GEN11_RENDER_COPY_INTR_ENABLE); + gt->gtier[1] = + intel_uncore_read(uncore, GEN11_VCS_VECS_INTR_ENABLE); + gt->gtier[2] = + intel_uncore_read(uncore, GEN11_GUC_SG_INTR_ENABLE); + gt->gtier[3] = + intel_uncore_read(uncore, + GEN11_GPM_WGBOXPERF_INTR_ENABLE); + gt->gtier[4] = + intel_uncore_read(uncore, + GEN11_CRYPTO_RSVD_INTR_ENABLE); + gt->gtier[5] = + intel_uncore_read(uncore, + GEN11_GUNIT_CSME_INTR_ENABLE); + gt->ngtier = 6; + } else if (GRAPHICS_VER(i915) >= 8) { + for (i = 0; i < 4; i++) + gt->gtier[i] = + intel_uncore_read(uncore, GEN8_GT_IER(i)); + gt->ngtier = 4; + } else if (HAS_PCH_SPLIT(i915)) { + gt->gtier[0] = intel_uncore_read(uncore, GTIER); + gt->ngtier = 1; + } + + gt->eir = intel_uncore_read(uncore, EIR); + gt->pgtbl_er = intel_uncore_read(uncore, PGTBL_ER); +} + +/* + * Capture all registers that relate to workload submission. + * NOTE: In GuC submission, when GuC resets an engine, it can dump these for us + */ +static void gt_record_global_regs(struct intel_gt_coredump *gt) { struct intel_uncore *uncore = gt->_gt->uncore; struct drm_i915_private *i915 = uncore->i915; @@ -1632,11 +1749,8 @@ static void gt_record_regs(struct intel_gt_coredump *gt) */ /* 1: Registers specific to a single generation */ - if (IS_VALLEYVIEW(i915)) { - gt->gtier[0] = intel_uncore_read(uncore, GTIER); - gt->ier = intel_uncore_read(uncore, VLV_IER); + if (IS_VALLEYVIEW(i915)) gt->forcewake = intel_uncore_read_fw(uncore, FORCEWAKE_VLV); - } if (GRAPHICS_VER(i915) == 7) gt->err_int = intel_uncore_read(uncore, GEN7_ERR_INT); @@ -1664,7 +1778,6 @@ static void gt_record_regs(struct intel_gt_coredump *gt) gt->forcewake = intel_uncore_read_fw(uncore, FORCEWAKE_MT); if (GRAPHICS_VER(i915) >= 6) { - gt->derrmr = intel_uncore_read(uncore, DERRMR); if (GRAPHICS_VER(i915) < 12) { gt->error = intel_uncore_read(uncore, ERROR_GEN6); gt->done_reg = intel_uncore_read(uncore, DONE_REG); @@ -1684,7 +1797,7 @@ static void gt_record_regs(struct intel_gt_coredump *gt) gt->aux_err = intel_uncore_read(uncore, GEN12_AUX_ERR_DBG); if (GRAPHICS_VER(i915) >= 12) { - for (i = 0; i < GEN12_SFC_DONE_MAX; i++) { + for (i = 0; i < I915_MAX_SFC; i++) { /* * SFC_DONE resides in the VD forcewake domain, so it * only exists if the corresponding VCS engine is @@ -1700,44 +1813,6 @@ static void gt_record_regs(struct intel_gt_coredump *gt) gt->gam_done = intel_uncore_read(uncore, GEN12_GAM_DONE); } - - /* 4: Everything else */ - if (GRAPHICS_VER(i915) >= 11) { - gt->ier = intel_uncore_read(uncore, GEN8_DE_MISC_IER); - gt->gtier[0] = - intel_uncore_read(uncore, - GEN11_RENDER_COPY_INTR_ENABLE); - gt->gtier[1] = - intel_uncore_read(uncore, GEN11_VCS_VECS_INTR_ENABLE); - gt->gtier[2] = - intel_uncore_read(uncore, GEN11_GUC_SG_INTR_ENABLE); - gt->gtier[3] = - intel_uncore_read(uncore, - GEN11_GPM_WGBOXPERF_INTR_ENABLE); - gt->gtier[4] = - intel_uncore_read(uncore, - GEN11_CRYPTO_RSVD_INTR_ENABLE); - gt->gtier[5] = - intel_uncore_read(uncore, - GEN11_GUNIT_CSME_INTR_ENABLE); - gt->ngtier = 6; - } else if (GRAPHICS_VER(i915) >= 8) { - gt->ier = intel_uncore_read(uncore, GEN8_DE_MISC_IER); - for (i = 0; i < 4; i++) - gt->gtier[i] = - intel_uncore_read(uncore, GEN8_GT_IER(i)); - gt->ngtier = 4; - } else if (HAS_PCH_SPLIT(i915)) { - gt->ier = intel_uncore_read(uncore, DEIER); - gt->gtier[0] = intel_uncore_read(uncore, GTIER); - gt->ngtier = 1; - } else if (GRAPHICS_VER(i915) == 2) { - gt->ier = intel_uncore_read16(uncore, GEN2_IER); - } else if (!IS_VALLEYVIEW(i915)) { - gt->ier = intel_uncore_read(uncore, GEN2_IER); - } - gt->eir = intel_uncore_read(uncore, EIR); - gt->pgtbl_er = intel_uncore_read(uncore, PGTBL_ER); } static void gt_record_info(struct intel_gt_coredump *gt) @@ -1849,7 +1924,7 @@ i915_gpu_coredump_alloc(struct drm_i915_private *i915, gfp_t gfp) #define DAY_AS_SECONDS(x) (24 * 60 * 60 * (x)) struct intel_gt_coredump * -intel_gt_coredump_alloc(struct intel_gt *gt, gfp_t gfp) +intel_gt_coredump_alloc(struct intel_gt *gt, gfp_t gfp, u32 dump_flags) { struct intel_gt_coredump *gc; @@ -1860,7 +1935,21 @@ intel_gt_coredump_alloc(struct intel_gt *gt, gfp_t gfp) gc->_gt = gt; gc->awake = intel_gt_pm_is_awake(gt); - gt_record_regs(gc); + gt_record_display_regs(gc); + gt_record_global_nonguc_regs(gc); + + /* + * GuC dumps global, eng-class and eng-instance registers + * (that can change as part of engine state during execution) + * before an engine is reset due to a hung context. + * GuC captures and reports all three groups of registers + * together as a single set before the engine is reset. + * Thus, if GuC triggered the context reset we retrieve + * the register values as part of gt_record_engines. + */ + if (!(dump_flags & CORE_DUMP_FLAG_IS_GUC_CAPTURE)) + gt_record_global_regs(gc); + gt_record_fences(gc); return gc; @@ -1894,7 +1983,7 @@ void i915_vma_capture_finish(struct intel_gt_coredump *gt, } static struct i915_gpu_coredump * -__i915_gpu_coredump(struct intel_gt *gt, intel_engine_mask_t engine_mask) +__i915_gpu_coredump(struct intel_gt *gt, intel_engine_mask_t engine_mask, u32 dump_flags) { struct drm_i915_private *i915 = gt->i915; struct i915_gpu_coredump *error; @@ -1908,7 +1997,7 @@ __i915_gpu_coredump(struct intel_gt *gt, intel_engine_mask_t engine_mask) if (!error) return ERR_PTR(-ENOMEM); - error->gt = intel_gt_coredump_alloc(gt, ALLOW_FAIL); + error->gt = intel_gt_coredump_alloc(gt, ALLOW_FAIL, dump_flags); if (error->gt) { struct i915_vma_compress *compress; @@ -1919,11 +2008,19 @@ __i915_gpu_coredump(struct intel_gt *gt, intel_engine_mask_t engine_mask) return ERR_PTR(-ENOMEM); } + if (INTEL_INFO(i915)->has_gt_uc) { + error->gt->uc = gt_record_uc(error->gt, compress); + if (error->gt->uc) { + if (dump_flags & CORE_DUMP_FLAG_IS_GUC_CAPTURE) + error->gt->uc->is_guc_capture = true; + else + GEM_BUG_ON(error->gt->uc->is_guc_capture); + } + } + gt_record_info(error->gt); - gt_record_engines(error->gt, engine_mask, compress); + gt_record_engines(error->gt, engine_mask, compress, dump_flags); - if (INTEL_INFO(i915)->has_gt_uc) - error->gt->uc = gt_record_uc(error->gt, compress); i915_vma_capture_finish(error->gt, compress); @@ -1936,7 +2033,7 @@ __i915_gpu_coredump(struct intel_gt *gt, intel_engine_mask_t engine_mask) } struct i915_gpu_coredump * -i915_gpu_coredump(struct intel_gt *gt, intel_engine_mask_t engine_mask) +i915_gpu_coredump(struct intel_gt *gt, intel_engine_mask_t engine_mask, u32 dump_flags) { static DEFINE_MUTEX(capture_mutex); int ret = mutex_lock_interruptible(&capture_mutex); @@ -1945,7 +2042,7 @@ i915_gpu_coredump(struct intel_gt *gt, intel_engine_mask_t engine_mask) if (ret) return ERR_PTR(ret); - dump = __i915_gpu_coredump(gt, engine_mask); + dump = __i915_gpu_coredump(gt, engine_mask, dump_flags); mutex_unlock(&capture_mutex); return dump; @@ -1992,11 +2089,11 @@ void i915_error_state_store(struct i915_gpu_coredump *error) * to pick up. */ void i915_capture_error_state(struct intel_gt *gt, - intel_engine_mask_t engine_mask) + intel_engine_mask_t engine_mask, u32 dump_flags) { struct i915_gpu_coredump *error; - error = i915_gpu_coredump(gt, engine_mask); + error = i915_gpu_coredump(gt, engine_mask, dump_flags); if (IS_ERR(error)) { cmpxchg(>->i915->gpu_error.first_error, NULL, error); return; diff --git a/drivers/gpu/drm/i915/i915_gpu_error.h b/drivers/gpu/drm/i915/i915_gpu_error.h index 88ce3a08f555..a611abacd9c2 100644 --- a/drivers/gpu/drm/i915/i915_gpu_error.h +++ b/drivers/gpu/drm/i915/i915_gpu_error.h @@ -53,6 +53,8 @@ struct i915_request_coredump { struct i915_sched_attr sched_attr; }; +struct __guc_capture_parsed_output; + struct intel_engine_coredump { const struct intel_engine_cs *engine; @@ -84,11 +86,15 @@ struct intel_engine_coredump { u32 rc_psmi; /* sleep state */ struct intel_instdone instdone; + /* GuC matched capture-lists info */ + struct intel_guc_state_capture *capture; + struct __guc_capture_parsed_output *guc_capture_node; + struct i915_gem_context_coredump { char comm[TASK_COMM_LEN]; u64 total_runtime; - u32 avg_runtime; + u64 avg_runtime; pid_t pid; int active; @@ -124,7 +130,6 @@ struct intel_gt_coredump { u32 pgtbl_er; u32 ier; u32 gtier[6], ngtier; - u32 derrmr; u32 forcewake; u32 error; /* gen6+ */ u32 err_int; /* gen7 */ @@ -137,9 +142,12 @@ struct intel_gt_coredump { u32 gfx_mode; u32 gtt_cache; u32 aux_err; /* gen12 */ - u32 sfc_done[GEN12_SFC_DONE_MAX]; /* gen12 */ u32 gam_done; /* gen12 */ + /* Display related */ + u32 derrmr; + u32 sfc_done[I915_MAX_SFC]; /* gen12 */ + u32 nfence; u64 fence[I915_MAX_NUM_FENCES]; @@ -149,6 +157,7 @@ struct intel_gt_coredump { struct intel_uc_fw guc_fw; struct intel_uc_fw huc_fw; struct i915_vma_coredump *guc_log; + bool is_guc_capture; } *uc; struct intel_gt_coredump *next; @@ -221,24 +230,32 @@ static inline u32 i915_reset_engine_count(struct i915_gpu_error *error, return atomic_read(&error->reset_engine_count[engine->uabi_class]); } +#define CORE_DUMP_FLAG_NONE 0x0 +#define CORE_DUMP_FLAG_IS_GUC_CAPTURE BIT(0) + #if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR) __printf(2, 3) void i915_error_printf(struct drm_i915_error_state_buf *e, const char *f, ...); +void intel_gpu_error_print_vma(struct drm_i915_error_state_buf *m, + const struct intel_engine_cs *engine, + const struct i915_vma_coredump *vma); +struct i915_vma_coredump * +intel_gpu_error_find_batch(const struct intel_engine_coredump *ee); struct i915_gpu_coredump *i915_gpu_coredump(struct intel_gt *gt, - intel_engine_mask_t engine_mask); + intel_engine_mask_t engine_mask, u32 dump_flags); void i915_capture_error_state(struct intel_gt *gt, - intel_engine_mask_t engine_mask); + intel_engine_mask_t engine_mask, u32 dump_flags); struct i915_gpu_coredump * i915_gpu_coredump_alloc(struct drm_i915_private *i915, gfp_t gfp); struct intel_gt_coredump * -intel_gt_coredump_alloc(struct intel_gt *gt, gfp_t gfp); +intel_gt_coredump_alloc(struct intel_gt *gt, gfp_t gfp, u32 dump_flags); struct intel_engine_coredump * -intel_engine_coredump_alloc(struct intel_engine_cs *engine, gfp_t gfp); +intel_engine_coredump_alloc(struct intel_engine_cs *engine, gfp_t gfp, u32 dump_flags); struct intel_engine_capture_vma * intel_engine_coredump_add_request(struct intel_engine_coredump *ee, @@ -288,7 +305,7 @@ i915_error_printf(struct drm_i915_error_state_buf *e, const char *f, ...) } static inline void -i915_capture_error_state(struct intel_gt *gt, intel_engine_mask_t engine_mask) +i915_capture_error_state(struct intel_gt *gt, intel_engine_mask_t engine_mask, u32 dump_flags) { } @@ -299,13 +316,13 @@ i915_gpu_coredump_alloc(struct drm_i915_private *i915, gfp_t gfp) } static inline struct intel_gt_coredump * -intel_gt_coredump_alloc(struct intel_gt *gt, gfp_t gfp) +intel_gt_coredump_alloc(struct intel_gt *gt, gfp_t gfp, u32 dump_flags) { return NULL; } static inline struct intel_engine_coredump * -intel_engine_coredump_alloc(struct intel_engine_cs *engine, gfp_t gfp) +intel_engine_coredump_alloc(struct intel_engine_cs *engine, gfp_t gfp, u32 dump_flags) { return NULL; } diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c index 5ad071e09301..701fbc98afa0 100644 --- a/drivers/gpu/drm/i915/i915_params.c +++ b/drivers/gpu/drm/i915/i915_params.c @@ -202,6 +202,9 @@ i915_param_named_unsafe(request_timeout_ms, uint, 0600, "Default request/fence/batch buffer expiration timeout."); #endif +i915_param_named_unsafe(lmem_size, uint, 0400, + "Set the lmem size(in MiB) for each region. (default: 0, all memory)"); + static __always_inline void _print_param(struct drm_printer *p, const char *name, const char *type, diff --git a/drivers/gpu/drm/i915/i915_params.h b/drivers/gpu/drm/i915/i915_params.h index c779a6f85c7e..b5e7ea45d191 100644 --- a/drivers/gpu/drm/i915/i915_params.h +++ b/drivers/gpu/drm/i915/i915_params.h @@ -73,6 +73,7 @@ struct drm_printer; param(int, enable_dpcd_backlight, -1, 0600) \ param(char *, force_probe, CONFIG_DRM_I915_FORCE_PROBE, 0400) \ param(unsigned int, request_timeout_ms, CONFIG_DRM_I915_REQUEST_TIMEOUT, CONFIG_DRM_I915_REQUEST_TIMEOUT ? 0600 : 0) \ + param(unsigned int, lmem_size, 0, 0400) \ /* leave bools at the end to not create holes */ \ param(bool, enable_hangcheck, true, 0600) \ param(bool, load_detect_test, false, 0600) \ diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c index 9e077929ed67..38f7de778914 100644 --- a/drivers/gpu/drm/i915/i915_pci.c +++ b/drivers/gpu/drm/i915/i915_pci.c @@ -901,7 +901,8 @@ static const struct intel_device_info rkl_info = { .has_llc = 0, \ .has_pxp = 0, \ .has_snoop = 1, \ - .is_dgfx = 1 + .is_dgfx = 1, \ + .has_heci_gscfi = 1 static const struct intel_device_info dg1_info = { GEN12_FEATURES, @@ -1050,6 +1051,7 @@ static const struct intel_device_info xehpsdv_info = { .has_4tile = 1, \ .has_64k_pages = 1, \ .has_guc_deprivilege = 1, \ + .has_heci_pxp = 1, \ .needs_compact_pt = 1, \ .platform_engine_mask = \ BIT(RCS0) | BIT(BCS0) | \ diff --git a/drivers/gpu/drm/i915/i915_query.c b/drivers/gpu/drm/i915/i915_query.c index 2dfbc22857a3..7584cec53d5d 100644 --- a/drivers/gpu/drm/i915/i915_query.c +++ b/drivers/gpu/drm/i915/i915_query.c @@ -9,6 +9,7 @@ #include "i915_drv.h" #include "i915_perf.h" #include "i915_query.h" +#include "gt/intel_engine_user.h" #include <uapi/drm/i915_drm.h> static int copy_query_item(void *query_hdr, size_t query_sz, @@ -28,36 +29,30 @@ static int copy_query_item(void *query_hdr, size_t query_sz, return 0; } -static int query_topology_info(struct drm_i915_private *dev_priv, - struct drm_i915_query_item *query_item) +static int fill_topology_info(const struct sseu_dev_info *sseu, + struct drm_i915_query_item *query_item, + const u8 *subslice_mask) { - const struct sseu_dev_info *sseu = &to_gt(dev_priv)->info.sseu; struct drm_i915_query_topology_info topo; u32 slice_length, subslice_length, eu_length, total_length; int ret; - if (query_item->flags != 0) - return -EINVAL; + BUILD_BUG_ON(sizeof(u8) != sizeof(sseu->slice_mask)); if (sseu->max_slices == 0) return -ENODEV; - BUILD_BUG_ON(sizeof(u8) != sizeof(sseu->slice_mask)); - slice_length = sizeof(sseu->slice_mask); subslice_length = sseu->max_slices * sseu->ss_stride; eu_length = sseu->max_slices * sseu->max_subslices * sseu->eu_stride; total_length = sizeof(topo) + slice_length + subslice_length + eu_length; - ret = copy_query_item(&topo, sizeof(topo), total_length, - query_item); + ret = copy_query_item(&topo, sizeof(topo), total_length, query_item); + if (ret != 0) return ret; - if (topo.flags != 0) - return -EINVAL; - memset(&topo, 0, sizeof(topo)); topo.max_slices = sseu->max_slices; topo.max_subslices = sseu->max_subslices; @@ -69,27 +64,64 @@ static int query_topology_info(struct drm_i915_private *dev_priv, topo.eu_stride = sseu->eu_stride; if (copy_to_user(u64_to_user_ptr(query_item->data_ptr), - &topo, sizeof(topo))) + &topo, sizeof(topo))) return -EFAULT; if (copy_to_user(u64_to_user_ptr(query_item->data_ptr + sizeof(topo)), - &sseu->slice_mask, slice_length)) + &sseu->slice_mask, slice_length)) return -EFAULT; if (copy_to_user(u64_to_user_ptr(query_item->data_ptr + - sizeof(topo) + slice_length), - sseu->subslice_mask, subslice_length)) + sizeof(topo) + slice_length), + subslice_mask, subslice_length)) return -EFAULT; if (copy_to_user(u64_to_user_ptr(query_item->data_ptr + - sizeof(topo) + - slice_length + subslice_length), - sseu->eu_mask, eu_length)) + sizeof(topo) + + slice_length + subslice_length), + sseu->eu_mask, eu_length)) return -EFAULT; return total_length; } +static int query_topology_info(struct drm_i915_private *dev_priv, + struct drm_i915_query_item *query_item) +{ + const struct sseu_dev_info *sseu = &to_gt(dev_priv)->info.sseu; + + if (query_item->flags != 0) + return -EINVAL; + + return fill_topology_info(sseu, query_item, sseu->subslice_mask); +} + +static int query_geometry_subslices(struct drm_i915_private *i915, + struct drm_i915_query_item *query_item) +{ + const struct sseu_dev_info *sseu; + struct intel_engine_cs *engine; + struct i915_engine_class_instance classinstance; + + if (GRAPHICS_VER_FULL(i915) < IP_VER(12, 50)) + return -ENODEV; + + classinstance = *((struct i915_engine_class_instance *)&query_item->flags); + + engine = intel_engine_lookup_user(i915, (u8)classinstance.engine_class, + (u8)classinstance.engine_instance); + + if (!engine) + return -EINVAL; + + if (engine->class != RENDER_CLASS) + return -EINVAL; + + sseu = &engine->gt->info.sseu; + + return fill_topology_info(sseu, query_item, sseu->geometry_subslice_mask); +} + static int query_engine_info(struct drm_i915_private *i915, struct drm_i915_query_item *query_item) @@ -479,12 +511,36 @@ static int query_memregion_info(struct drm_i915_private *i915, return total_length; } +static int query_hwconfig_blob(struct drm_i915_private *i915, + struct drm_i915_query_item *query_item) +{ + struct intel_gt *gt = to_gt(i915); + struct intel_hwconfig *hwconfig = >->info.hwconfig; + + if (!hwconfig->size || !hwconfig->ptr) + return -ENODEV; + + if (query_item->length == 0) + return hwconfig->size; + + if (query_item->length < hwconfig->size) + return -EINVAL; + + if (copy_to_user(u64_to_user_ptr(query_item->data_ptr), + hwconfig->ptr, hwconfig->size)) + return -EFAULT; + + return hwconfig->size; +} + static int (* const i915_query_funcs[])(struct drm_i915_private *dev_priv, struct drm_i915_query_item *query_item) = { query_topology_info, query_engine_info, query_perf_config, query_memregion_info, + query_hwconfig_blob, + query_geometry_subslices, }; int i915_query_ioctl(struct drm_device *dev, void *data, struct drm_file *file) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 51f46fe45c72..efcfe32cd8eb 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -976,6 +976,10 @@ #define GEN12_COMPUTE2_RING_BASE 0x1e000 #define GEN12_COMPUTE3_RING_BASE 0x26000 #define BLT_RING_BASE 0x22000 +#define DG1_GSC_HECI1_BASE 0x00258000 +#define DG1_GSC_HECI2_BASE 0x00259000 +#define DG2_GSC_HECI1_BASE 0x00373000 +#define DG2_GSC_HECI2_BASE 0x00374000 @@ -1842,6 +1846,17 @@ #define GEN9_RP_STATE_LIMITS _MMIO(0x138148) #define XEHPSDV_RP_STATE_CAP _MMIO(0x250014) +#define GT0_PERF_LIMIT_REASONS _MMIO(0x1381a8) +#define GT0_PERF_LIMIT_REASONS_MASK 0xde3 +#define PROCHOT_MASK REG_BIT(1) +#define THERMAL_LIMIT_MASK REG_BIT(2) +#define RATL_MASK REG_BIT(6) +#define VR_THERMALERT_MASK REG_BIT(7) +#define VR_TDC_MASK REG_BIT(8) +#define POWER_LIMIT_4_MASK REG_BIT(9) +#define POWER_LIMIT_1_MASK REG_BIT(11) +#define POWER_LIMIT_2_MASK REG_BIT(12) + #define CHV_CLK_CTL1 _MMIO(0x101100) #define VLV_CLK_CTL2 _MMIO(0x101104) #define CLK_CTL2_CZCOUNT_30NS_SHIFT 28 @@ -8460,6 +8475,9 @@ enum skl_power_gate { #define SGGI_DIS REG_BIT(15) #define SGR_DIS REG_BIT(13) +#define XEHPSDV_TILE0_ADDR_RANGE _MMIO(0x4900) +#define XEHPSDV_TILE_LMEM_RANGE_SHIFT 8 + #define XEHPSDV_FLAT_CCS_BASE_ADDR _MMIO(0x4910) #define XEHPSDV_CCS_BASE_SHIFT 8 diff --git a/drivers/gpu/drm/i915/i915_reg_defs.h b/drivers/gpu/drm/i915/i915_reg_defs.h index d78d78fce431..8f486f77609f 100644 --- a/drivers/gpu/drm/i915/i915_reg_defs.h +++ b/drivers/gpu/drm/i915/i915_reg_defs.h @@ -123,6 +123,4 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg) #define VLV_DISPLAY_BASE 0x180000 -#define GEN12_SFC_DONE_MAX 4 - #endif /* __I915_REG_DEFS__ */ diff --git a/drivers/gpu/drm/i915/i915_sysfs.c b/drivers/gpu/drm/i915/i915_sysfs.c index a4d1759375b9..8521daba212a 100644 --- a/drivers/gpu/drm/i915/i915_sysfs.c +++ b/drivers/gpu/drm/i915/i915_sysfs.c @@ -39,113 +39,12 @@ #include "i915_sysfs.h" #include "intel_pm.h" -static inline struct drm_i915_private *kdev_minor_to_i915(struct device *kdev) +struct drm_i915_private *kdev_minor_to_i915(struct device *kdev) { struct drm_minor *minor = dev_get_drvdata(kdev); return to_i915(minor->dev); } -#ifdef CONFIG_PM -static u32 calc_residency(struct drm_i915_private *dev_priv, - i915_reg_t reg) -{ - intel_wakeref_t wakeref; - u64 res = 0; - - with_intel_runtime_pm(&dev_priv->runtime_pm, wakeref) - res = intel_rc6_residency_us(&to_gt(dev_priv)->rc6, reg); - - return DIV_ROUND_CLOSEST_ULL(res, 1000); -} - -static ssize_t rc6_enable_show(struct device *kdev, - struct device_attribute *attr, char *buf) -{ - struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev); - unsigned int mask; - - mask = 0; - if (HAS_RC6(dev_priv)) - mask |= BIT(0); - if (HAS_RC6p(dev_priv)) - mask |= BIT(1); - if (HAS_RC6pp(dev_priv)) - mask |= BIT(2); - - return sysfs_emit(buf, "%x\n", mask); -} - -static ssize_t rc6_residency_ms_show(struct device *kdev, - struct device_attribute *attr, char *buf) -{ - struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev); - u32 rc6_residency = calc_residency(dev_priv, GEN6_GT_GFX_RC6); - return sysfs_emit(buf, "%u\n", rc6_residency); -} - -static ssize_t rc6p_residency_ms_show(struct device *kdev, - struct device_attribute *attr, char *buf) -{ - struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev); - u32 rc6p_residency = calc_residency(dev_priv, GEN6_GT_GFX_RC6p); - return sysfs_emit(buf, "%u\n", rc6p_residency); -} - -static ssize_t rc6pp_residency_ms_show(struct device *kdev, - struct device_attribute *attr, char *buf) -{ - struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev); - u32 rc6pp_residency = calc_residency(dev_priv, GEN6_GT_GFX_RC6pp); - return sysfs_emit(buf, "%u\n", rc6pp_residency); -} - -static ssize_t media_rc6_residency_ms_show(struct device *kdev, - struct device_attribute *attr, char *buf) -{ - struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev); - u32 rc6_residency = calc_residency(dev_priv, VLV_GT_MEDIA_RC6); - return sysfs_emit(buf, "%u\n", rc6_residency); -} - -static DEVICE_ATTR_RO(rc6_enable); -static DEVICE_ATTR_RO(rc6_residency_ms); -static DEVICE_ATTR_RO(rc6p_residency_ms); -static DEVICE_ATTR_RO(rc6pp_residency_ms); -static DEVICE_ATTR_RO(media_rc6_residency_ms); - -static struct attribute *rc6_attrs[] = { - &dev_attr_rc6_enable.attr, - &dev_attr_rc6_residency_ms.attr, - NULL -}; - -static const struct attribute_group rc6_attr_group = { - .name = power_group_name, - .attrs = rc6_attrs -}; - -static struct attribute *rc6p_attrs[] = { - &dev_attr_rc6p_residency_ms.attr, - &dev_attr_rc6pp_residency_ms.attr, - NULL -}; - -static const struct attribute_group rc6p_attr_group = { - .name = power_group_name, - .attrs = rc6p_attrs -}; - -static struct attribute *media_rc6_attrs[] = { - &dev_attr_media_rc6_residency_ms.attr, - NULL -}; - -static const struct attribute_group media_rc6_attr_group = { - .name = power_group_name, - .attrs = media_rc6_attrs -}; -#endif - static int l3_access_valid(struct drm_i915_private *i915, loff_t offset) { if (!HAS_L3_DPF(i915)) @@ -257,171 +156,6 @@ static const struct bin_attribute dpf_attrs_1 = { .private = (void *)1 }; -static ssize_t gt_act_freq_mhz_show(struct device *kdev, - struct device_attribute *attr, char *buf) -{ - struct drm_i915_private *i915 = kdev_minor_to_i915(kdev); - struct intel_rps *rps = &to_gt(i915)->rps; - - return sysfs_emit(buf, "%d\n", intel_rps_read_actual_frequency(rps)); -} - -static ssize_t gt_cur_freq_mhz_show(struct device *kdev, - struct device_attribute *attr, char *buf) -{ - struct drm_i915_private *i915 = kdev_minor_to_i915(kdev); - struct intel_rps *rps = &to_gt(i915)->rps; - - return sysfs_emit(buf, "%d\n", intel_rps_get_requested_frequency(rps)); -} - -static ssize_t gt_boost_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf) -{ - struct drm_i915_private *i915 = kdev_minor_to_i915(kdev); - struct intel_rps *rps = &to_gt(i915)->rps; - - return sysfs_emit(buf, "%d\n", intel_rps_get_boost_frequency(rps)); -} - -static ssize_t gt_boost_freq_mhz_store(struct device *kdev, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev); - struct intel_rps *rps = &to_gt(dev_priv)->rps; - ssize_t ret; - u32 val; - - ret = kstrtou32(buf, 0, &val); - if (ret) - return ret; - - ret = intel_rps_set_boost_frequency(rps, val); - - return ret ?: count; -} - -static ssize_t vlv_rpe_freq_mhz_show(struct device *kdev, - struct device_attribute *attr, char *buf) -{ - struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev); - struct intel_rps *rps = &to_gt(dev_priv)->rps; - - return sysfs_emit(buf, "%d\n", intel_gpu_freq(rps, rps->efficient_freq)); -} - -static ssize_t gt_max_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf) -{ - struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev); - struct intel_gt *gt = to_gt(dev_priv); - struct intel_rps *rps = >->rps; - - return sysfs_emit(buf, "%d\n", intel_rps_get_max_frequency(rps)); -} - -static ssize_t gt_max_freq_mhz_store(struct device *kdev, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev); - struct intel_gt *gt = to_gt(dev_priv); - struct intel_rps *rps = >->rps; - ssize_t ret; - u32 val; - - ret = kstrtou32(buf, 0, &val); - if (ret) - return ret; - - ret = intel_rps_set_max_frequency(rps, val); - - return ret ?: count; -} - -static ssize_t gt_min_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf) -{ - struct drm_i915_private *i915 = kdev_minor_to_i915(kdev); - struct intel_gt *gt = to_gt(i915); - struct intel_rps *rps = >->rps; - - return sysfs_emit(buf, "%d\n", intel_rps_get_min_frequency(rps)); -} - -static ssize_t gt_min_freq_mhz_store(struct device *kdev, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct drm_i915_private *i915 = kdev_minor_to_i915(kdev); - struct intel_rps *rps = &to_gt(i915)->rps; - ssize_t ret; - u32 val; - - ret = kstrtou32(buf, 0, &val); - if (ret) - return ret; - - ret = intel_rps_set_min_frequency(rps, val); - - return ret ?: count; -} - -static DEVICE_ATTR_RO(gt_act_freq_mhz); -static DEVICE_ATTR_RO(gt_cur_freq_mhz); -static DEVICE_ATTR_RW(gt_boost_freq_mhz); -static DEVICE_ATTR_RW(gt_max_freq_mhz); -static DEVICE_ATTR_RW(gt_min_freq_mhz); - -static DEVICE_ATTR_RO(vlv_rpe_freq_mhz); - -static ssize_t gt_rp_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf); -static DEVICE_ATTR(gt_RP0_freq_mhz, S_IRUGO, gt_rp_mhz_show, NULL); -static DEVICE_ATTR(gt_RP1_freq_mhz, S_IRUGO, gt_rp_mhz_show, NULL); -static DEVICE_ATTR(gt_RPn_freq_mhz, S_IRUGO, gt_rp_mhz_show, NULL); - -/* For now we have a static number of RP states */ -static ssize_t gt_rp_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf) -{ - struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev); - struct intel_rps *rps = &to_gt(dev_priv)->rps; - u32 val; - - if (attr == &dev_attr_gt_RP0_freq_mhz) - val = intel_rps_get_rp0_frequency(rps); - else if (attr == &dev_attr_gt_RP1_freq_mhz) - val = intel_rps_get_rp1_frequency(rps); - else if (attr == &dev_attr_gt_RPn_freq_mhz) - val = intel_rps_get_rpn_frequency(rps); - else - BUG(); - - return sysfs_emit(buf, "%d\n", val); -} - -static const struct attribute * const gen6_attrs[] = { - &dev_attr_gt_act_freq_mhz.attr, - &dev_attr_gt_cur_freq_mhz.attr, - &dev_attr_gt_boost_freq_mhz.attr, - &dev_attr_gt_max_freq_mhz.attr, - &dev_attr_gt_min_freq_mhz.attr, - &dev_attr_gt_RP0_freq_mhz.attr, - &dev_attr_gt_RP1_freq_mhz.attr, - &dev_attr_gt_RPn_freq_mhz.attr, - NULL, -}; - -static const struct attribute * const vlv_attrs[] = { - &dev_attr_gt_act_freq_mhz.attr, - &dev_attr_gt_cur_freq_mhz.attr, - &dev_attr_gt_boost_freq_mhz.attr, - &dev_attr_gt_max_freq_mhz.attr, - &dev_attr_gt_min_freq_mhz.attr, - &dev_attr_gt_RP0_freq_mhz.attr, - &dev_attr_gt_RP1_freq_mhz.attr, - &dev_attr_gt_RPn_freq_mhz.attr, - &dev_attr_vlv_rpe_freq_mhz.attr, - NULL, -}; - #if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR) static ssize_t error_state_read(struct file *filp, struct kobject *kobj, @@ -492,29 +226,6 @@ void i915_setup_sysfs(struct drm_i915_private *dev_priv) struct device *kdev = dev_priv->drm.primary->kdev; int ret; -#ifdef CONFIG_PM - if (HAS_RC6(dev_priv)) { - ret = sysfs_merge_group(&kdev->kobj, - &rc6_attr_group); - if (ret) - drm_err(&dev_priv->drm, - "RC6 residency sysfs setup failed\n"); - } - if (HAS_RC6p(dev_priv)) { - ret = sysfs_merge_group(&kdev->kobj, - &rc6p_attr_group); - if (ret) - drm_err(&dev_priv->drm, - "RC6p residency sysfs setup failed\n"); - } - if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) { - ret = sysfs_merge_group(&kdev->kobj, - &media_rc6_attr_group); - if (ret) - drm_err(&dev_priv->drm, - "Media RC6 residency sysfs setup failed\n"); - } -#endif if (HAS_L3_DPF(dev_priv)) { ret = device_create_bin_file(kdev, &dpf_attrs); if (ret) @@ -530,13 +241,10 @@ void i915_setup_sysfs(struct drm_i915_private *dev_priv) } } - ret = 0; - if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) - ret = sysfs_create_files(&kdev->kobj, vlv_attrs); - else if (GRAPHICS_VER(dev_priv) >= 6) - ret = sysfs_create_files(&kdev->kobj, gen6_attrs); - if (ret) - drm_err(&dev_priv->drm, "RPS sysfs setup failed\n"); + dev_priv->sysfs_gt = kobject_create_and_add("gt", &kdev->kobj); + if (!dev_priv->sysfs_gt) + drm_warn(&dev_priv->drm, + "failed to register GT sysfs directory\n"); i915_setup_error_capture(kdev); @@ -549,14 +257,6 @@ void i915_teardown_sysfs(struct drm_i915_private *dev_priv) i915_teardown_error_capture(kdev); - if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) - sysfs_remove_files(&kdev->kobj, vlv_attrs); - else - sysfs_remove_files(&kdev->kobj, gen6_attrs); device_remove_bin_file(kdev, &dpf_attrs_1); device_remove_bin_file(kdev, &dpf_attrs); -#ifdef CONFIG_PM - sysfs_unmerge_group(&kdev->kobj, &rc6_attr_group); - sysfs_unmerge_group(&kdev->kobj, &rc6p_attr_group); -#endif } diff --git a/drivers/gpu/drm/i915/i915_sysfs.h b/drivers/gpu/drm/i915/i915_sysfs.h index 41afd4366416..243a17741e3f 100644 --- a/drivers/gpu/drm/i915/i915_sysfs.h +++ b/drivers/gpu/drm/i915/i915_sysfs.h @@ -6,8 +6,11 @@ #ifndef __I915_SYSFS_H__ #define __I915_SYSFS_H__ +struct device; struct drm_i915_private; +struct drm_i915_private *kdev_minor_to_i915(struct device *kdev); + void i915_setup_sysfs(struct drm_i915_private *i915); void i915_teardown_sysfs(struct drm_i915_private *i915); diff --git a/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c b/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c index 129f668f21ff..a5109548abc0 100644 --- a/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c +++ b/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c @@ -70,8 +70,10 @@ static int i915_ttm_buddy_man_alloc(struct ttm_resource_manager *man, min_page_size = bo->page_alignment << PAGE_SHIFT; GEM_BUG_ON(min_page_size < mm->chunk_size); + GEM_BUG_ON(!IS_ALIGNED(size, min_page_size)); - if (place->flags & TTM_PL_FLAG_CONTIGUOUS) { + if (place->fpfn + bman_res->base.num_pages != place->lpfn && + place->flags & TTM_PL_FLAG_CONTIGUOUS) { unsigned long pages; size = roundup_pow_of_two(size); diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c index d077f7b9eaad..162e8d83691b 100644 --- a/drivers/gpu/drm/i915/i915_vma.c +++ b/drivers/gpu/drm/i915/i915_vma.c @@ -47,7 +47,7 @@ static inline void assert_vma_held_evict(const struct i915_vma *vma) * This is the only exception to the requirement of the object lock * being held. */ - if (atomic_read(&vma->vm->open)) + if (kref_read(&vma->vm->ref)) assert_object_held_shared(vma->obj); } @@ -113,6 +113,7 @@ vma_create(struct drm_i915_gem_object *obj, struct i915_vma *pos = ERR_PTR(-E2BIG); struct i915_vma *vma; struct rb_node *rb, **p; + int err; /* The aliasing_ppgtt should never be used directly! */ GEM_BUG_ON(vm == &vm->gt->ggtt->alias->vm); @@ -121,8 +122,6 @@ vma_create(struct drm_i915_gem_object *obj, if (vma == NULL) return ERR_PTR(-ENOMEM); - kref_init(&vma->ref); - vma->vm = i915_vm_get(vm); vma->ops = &vm->vma_ops; vma->obj = obj; vma->size = obj->base.size; @@ -138,6 +137,8 @@ vma_create(struct drm_i915_gem_object *obj, } INIT_LIST_HEAD(&vma->closed_link); + INIT_LIST_HEAD(&vma->obj_link); + RB_CLEAR_NODE(&vma->obj_node); if (view && view->type != I915_GGTT_VIEW_NORMAL) { vma->ggtt_view = *view; @@ -163,8 +164,16 @@ vma_create(struct drm_i915_gem_object *obj, GEM_BUG_ON(!IS_ALIGNED(vma->size, I915_GTT_PAGE_SIZE)); - spin_lock(&obj->vma.lock); + err = mutex_lock_interruptible(&vm->mutex); + if (err) { + pos = ERR_PTR(err); + goto err_vma; + } + + vma->vm = vm; + list_add_tail(&vma->vm_link, &vm->unbound_list); + spin_lock(&obj->vma.lock); if (i915_is_ggtt(vm)) { if (unlikely(overflows_type(vma->size, u32))) goto err_unlock; @@ -222,13 +231,15 @@ vma_create(struct drm_i915_gem_object *obj, list_add_tail(&vma->obj_link, &obj->vma.list); spin_unlock(&obj->vma.lock); + mutex_unlock(&vm->mutex); return vma; err_unlock: spin_unlock(&obj->vma.lock); + list_del_init(&vma->vm_link); + mutex_unlock(&vm->mutex); err_vma: - i915_vm_put(vm); i915_vma_free(vma); return pos; } @@ -279,7 +290,7 @@ i915_vma_instance(struct drm_i915_gem_object *obj, struct i915_vma *vma; GEM_BUG_ON(view && !i915_is_ggtt_or_dpt(vm)); - GEM_BUG_ON(!atomic_read(&vm->open)); + GEM_BUG_ON(!kref_read(&vm->ref)); spin_lock(&obj->vma.lock); vma = i915_vma_lookup(obj, vm, view); @@ -322,7 +333,6 @@ static void __vma_release(struct dma_fence_work *work) i915_gem_object_put(vw->pinned); i915_vm_free_pt_stash(vw->vm, &vw->stash); - i915_vm_put(vw->vm); if (vw->vma_res) i915_vma_resource_put(vw->vma_res); } @@ -515,21 +525,18 @@ int i915_vma_bind(struct i915_vma *vma, if (!work->vma_res->bi.pages_rsgt) work->pinned = i915_gem_object_get(vma->obj); } else { - if (vma->obj) { - ret = i915_gem_object_wait_moving_fence(vma->obj, true); - if (ret) { - i915_vma_resource_free(vma->resource); - vma->resource = NULL; + ret = i915_gem_object_wait_moving_fence(vma->obj, true); + if (ret) { + i915_vma_resource_free(vma->resource); + vma->resource = NULL; - return ret; - } + return ret; } vma->ops->bind_vma(vma->vm, NULL, vma->resource, cache_level, bind_flags); } - if (vma->obj) - set_bit(I915_BO_WAS_BOUND_BIT, &vma->obj->flags); + set_bit(I915_BO_WAS_BOUND_BIT, &vma->obj->flags); atomic_or(bind_flags, &vma->flags); return 0; @@ -841,7 +848,7 @@ i915_vma_insert(struct i915_vma *vma, struct i915_gem_ww_ctx *ww, GEM_BUG_ON(!drm_mm_node_allocated(&vma->node)); GEM_BUG_ON(!i915_gem_valid_gtt_space(vma, color)); - list_add_tail(&vma->vm_link, &vma->vm->bound_list); + list_move_tail(&vma->vm_link, &vma->vm->bound_list); return 0; } @@ -857,7 +864,7 @@ i915_vma_detach(struct i915_vma *vma) * vma, we can drop its hold on the backing storage and allow * it to be reaped by the shrinker. */ - list_del(&vma->vm_link); + list_move_tail(&vma->vm_link, &vma->vm->unbound_list); } static bool try_qad_pin(struct i915_vma *vma, unsigned int flags) @@ -1357,18 +1364,10 @@ int i915_vma_pin_ww(struct i915_vma *vma, struct i915_gem_ww_ctx *ww, if (err) return err; - if (vma->obj) { - err = i915_gem_object_get_moving_fence(vma->obj, &moving); - if (err) - return err; - } else { - moving = NULL; - } - if (flags & PIN_GLOBAL) wakeref = intel_runtime_pm_get(&vma->vm->i915->runtime_pm); - if (flags & vma->vm->bind_async_flags || moving) { + if (flags & vma->vm->bind_async_flags) { /* lock VM */ err = i915_vm_lock_objects(vma->vm, ww); if (err) @@ -1380,7 +1379,11 @@ int i915_vma_pin_ww(struct i915_vma *vma, struct i915_gem_ww_ctx *ww, goto err_rpm; } - work->vm = i915_vm_get(vma->vm); + work->vm = vma->vm; + + err = i915_gem_object_get_moving_fence(vma->obj, &moving); + if (err) + goto err_rpm; dma_fence_work_chain(&work->base, moving); @@ -1625,16 +1628,6 @@ void i915_vma_reopen(struct i915_vma *vma) __i915_vma_remove_closed(vma); } -void i915_vma_release(struct kref *ref) -{ - struct i915_vma *vma = container_of(ref, typeof(*vma), ref); - - i915_vm_put(vma->vm); - i915_active_fini(&vma->active); - GEM_WARN_ON(vma->resource); - i915_vma_free(vma); -} - static void force_unbind(struct i915_vma *vma) { if (!drm_mm_node_allocated(&vma->node)) @@ -1645,7 +1638,7 @@ static void force_unbind(struct i915_vma *vma) GEM_BUG_ON(drm_mm_node_allocated(&vma->node)); } -static void release_references(struct i915_vma *vma) +static void release_references(struct i915_vma *vma, bool vm_ddestroy) { struct drm_i915_gem_object *obj = vma->obj; @@ -1655,11 +1648,17 @@ static void release_references(struct i915_vma *vma) list_del(&vma->obj_link); if (!RB_EMPTY_NODE(&vma->obj_node)) rb_erase(&vma->obj_node, &obj->vma.tree); + spin_unlock(&obj->vma.lock); __i915_vma_remove_closed(vma); - __i915_vma_put(vma); + if (vm_ddestroy) + i915_vm_resv_put(vma->vm); + + i915_active_fini(&vma->active); + GEM_WARN_ON(vma->resource); + i915_vma_free(vma); } /** @@ -1674,8 +1673,12 @@ static void release_references(struct i915_vma *vma) * - __i915_gem_object_pages_fini() * - __i915_vm_close() - Blocks the above function by taking a reference on * the object. - * - __i915_vma_parked() - Blocks the above functions by taking an open-count on - * the vm and a reference on the object. + * - __i915_vma_parked() - Blocks the above functions by taking a reference + * on the vm and a reference on the object. Also takes the object lock so + * destruction from __i915_vma_parked() can be blocked by holding the + * object lock. Since the object lock is only allowed from within i915 with + * an object refcount, holding the object lock also implicitly blocks the + * vma freeing from __i915_gem_object_pages_fini(). * * Because of locks taken during destruction, a vma is also guaranteed to * stay alive while the following locks are held if it was looked up while @@ -1683,24 +1686,27 @@ static void release_references(struct i915_vma *vma) * - vm->mutex * - obj->vma.lock * - gt->closed_lock - * - * A vma user can also temporarily keep the vma alive while holding a vma - * reference. */ void i915_vma_destroy_locked(struct i915_vma *vma) { lockdep_assert_held(&vma->vm->mutex); force_unbind(vma); - release_references(vma); + list_del_init(&vma->vm_link); + release_references(vma, false); } void i915_vma_destroy(struct i915_vma *vma) { + bool vm_ddestroy; + mutex_lock(&vma->vm->mutex); force_unbind(vma); + list_del_init(&vma->vm_link); + vm_ddestroy = vma->vm_ddestroy; + vma->vm_ddestroy = false; mutex_unlock(&vma->vm->mutex); - release_references(vma); + release_references(vma, vm_ddestroy); } void i915_vma_parked(struct intel_gt *gt) @@ -1718,7 +1724,7 @@ void i915_vma_parked(struct intel_gt *gt) if (!kref_get_unless_zero(&obj->base.refcount)) continue; - if (!i915_vm_tryopen(vm)) { + if (!i915_vm_tryget(vm)) { i915_gem_object_put(obj); continue; } @@ -1744,7 +1750,7 @@ void i915_vma_parked(struct intel_gt *gt) } i915_gem_object_put(obj); - i915_vm_close(vm); + i915_vm_put(vm); } } @@ -1903,7 +1909,9 @@ struct dma_fence *__i915_vma_evict(struct i915_vma *vma, bool async) /* If vm is not open, unbind is a nop. */ vma_res->needs_wakeref = i915_vma_is_bound(vma, I915_VMA_GLOBAL_BIND) && - atomic_read(&vma->vm->open); + kref_read(&vma->vm->ref); + vma_res->skip_pte_rewrite = !kref_read(&vma->vm->ref) || + vma->vm->skip_pte_rewrite; trace_i915_vma_unbind(vma); unbind_fence = i915_vma_resource_unbind(vma_res); diff --git a/drivers/gpu/drm/i915/i915_vma.h b/drivers/gpu/drm/i915/i915_vma.h index 67ae7341c7e0..6034991d89fe 100644 --- a/drivers/gpu/drm/i915/i915_vma.h +++ b/drivers/gpu/drm/i915/i915_vma.h @@ -222,20 +222,6 @@ void i915_vma_unlink_ctx(struct i915_vma *vma); void i915_vma_close(struct i915_vma *vma); void i915_vma_reopen(struct i915_vma *vma); -static inline struct i915_vma *__i915_vma_get(struct i915_vma *vma) -{ - if (kref_get_unless_zero(&vma->ref)) - return vma; - - return NULL; -} - -void i915_vma_release(struct kref *ref); -static inline void __i915_vma_put(struct i915_vma *vma) -{ - kref_put(&vma->ref, i915_vma_release); -} - void i915_vma_destroy_locked(struct i915_vma *vma); void i915_vma_destroy(struct i915_vma *vma); diff --git a/drivers/gpu/drm/i915/i915_vma_resource.c b/drivers/gpu/drm/i915/i915_vma_resource.c index 57ae92ba8af1..27c55027387a 100644 --- a/drivers/gpu/drm/i915/i915_vma_resource.c +++ b/drivers/gpu/drm/i915/i915_vma_resource.c @@ -178,7 +178,7 @@ static void i915_vma_resource_unbind_work(struct work_struct *work) bool lockdep_cookie; lockdep_cookie = dma_fence_begin_signalling(); - if (likely(atomic_read(&vm->open))) + if (likely(!vma_res->skip_pte_rewrite)) vma_res->ops->unbind_vma(vm, vma_res); dma_fence_end_signalling(lockdep_cookie); diff --git a/drivers/gpu/drm/i915/i915_vma_resource.h b/drivers/gpu/drm/i915/i915_vma_resource.h index 25913913baa6..5d8427caa2ba 100644 --- a/drivers/gpu/drm/i915/i915_vma_resource.h +++ b/drivers/gpu/drm/i915/i915_vma_resource.h @@ -62,6 +62,11 @@ struct i915_page_sizes { * deferred to a work item awaiting unsignaled fences. This is a hack. * (dma_fence_work uses a fence flag for this, but this seems slightly * cleaner). + * @needs_wakeref: Whether a wakeref is needed during unbind. Since we can't + * take a wakeref in the dma-fence signalling critical path, it needs to be + * taken when the unbind is scheduled. + * @skip_pte_rewrite: During ggtt suspend and vm takedown pte rewriting + * needs to be skipped for unbind. * * The lifetime of a struct i915_vma_resource is from a binding request to * the actual possible asynchronous unbind has completed. @@ -113,6 +118,7 @@ struct i915_vma_resource { bool allocated:1; bool immediate_unbind:1; bool needs_wakeref:1; + bool skip_pte_rewrite:1; }; bool i915_vma_resource_hold(struct i915_vma_resource *vma_res, diff --git a/drivers/gpu/drm/i915/i915_vma_types.h b/drivers/gpu/drm/i915/i915_vma_types.h index 88370dadca82..be6e028c3b57 100644 --- a/drivers/gpu/drm/i915/i915_vma_types.h +++ b/drivers/gpu/drm/i915/i915_vma_types.h @@ -211,7 +211,6 @@ struct i915_vma { * handles (but same file) for execbuf, i.e. the number of aliases * that exist in the ctx->handle_vmas LUT for this vma. */ - struct kref ref; atomic_t open_count; atomic_t flags; /** @@ -272,6 +271,13 @@ struct i915_vma { atomic_t pages_count; /* number of active binds to the pages */ /** + * Whether we hold a reference on the vm dma_resv lock to temporarily + * block vm freeing until the vma is destroyed. + * Protected by the vm mutex. + */ + bool vm_ddestroy; + + /** * Support different GGTT views into the same object. * This means there can be multiple VMA mappings per object and per VM. * i915_ggtt_view_type is used to distinguish between those entries. diff --git a/drivers/gpu/drm/i915/intel_device_info.h b/drivers/gpu/drm/i915/intel_device_info.h index f9b955810593..576d15a04c9e 100644 --- a/drivers/gpu/drm/i915/intel_device_info.h +++ b/drivers/gpu/drm/i915/intel_device_info.h @@ -141,6 +141,8 @@ enum intel_ppgtt_type { func(has_flat_ccs); \ func(has_global_mocs); \ func(has_gt_uc); \ + func(has_heci_pxp); \ + func(has_heci_gscfi); \ func(has_guc_deprivilege); \ func(has_l3_dpf); \ func(has_llc); \ diff --git a/drivers/gpu/drm/i915/intel_memory_region.c b/drivers/gpu/drm/i915/intel_memory_region.c index ded78b83e0b5..e38d2db1c3e3 100644 --- a/drivers/gpu/drm/i915/intel_memory_region.c +++ b/drivers/gpu/drm/i915/intel_memory_region.c @@ -19,7 +19,7 @@ static const struct { .class = INTEL_MEMORY_SYSTEM, .instance = 0, }, - [INTEL_REGION_LMEM] = { + [INTEL_REGION_LMEM_0] = { .class = INTEL_MEMORY_LOCAL, .instance = 0, }, diff --git a/drivers/gpu/drm/i915/intel_memory_region.h b/drivers/gpu/drm/i915/intel_memory_region.h index bbc35ec5c090..3d8378c1b447 100644 --- a/drivers/gpu/drm/i915/intel_memory_region.h +++ b/drivers/gpu/drm/i915/intel_memory_region.h @@ -29,14 +29,17 @@ enum intel_memory_type { enum intel_region_id { INTEL_REGION_SMEM = 0, - INTEL_REGION_LMEM, + INTEL_REGION_LMEM_0, + INTEL_REGION_LMEM_1, + INTEL_REGION_LMEM_2, + INTEL_REGION_LMEM_3, INTEL_REGION_STOLEN_SMEM, INTEL_REGION_STOLEN_LMEM, INTEL_REGION_UNKNOWN, /* Should be last */ }; #define REGION_SMEM BIT(INTEL_REGION_SMEM) -#define REGION_LMEM BIT(INTEL_REGION_LMEM) +#define REGION_LMEM BIT(INTEL_REGION_LMEM_0) #define REGION_STOLEN_SMEM BIT(INTEL_REGION_STOLEN_SMEM) #define REGION_STOLEN_LMEM BIT(INTEL_REGION_STOLEN_LMEM) @@ -54,6 +57,7 @@ struct intel_memory_region_ops { int (*init_object)(struct intel_memory_region *mem, struct drm_i915_gem_object *obj, + resource_size_t offset, resource_size_t size, resource_size_t page_size, unsigned int flags); diff --git a/drivers/gpu/drm/i915/intel_region_ttm.c b/drivers/gpu/drm/i915/intel_region_ttm.c index 737ef3f4ab54..62ff77445b01 100644 --- a/drivers/gpu/drm/i915/intel_region_ttm.c +++ b/drivers/gpu/drm/i915/intel_region_ttm.c @@ -12,6 +12,7 @@ #include "intel_region_ttm.h" +#include "gem/i915_gem_region.h" #include "gem/i915_gem_ttm.h" /* For the funcs/ops export only */ /** * DOC: TTM support structure @@ -191,6 +192,7 @@ intel_region_ttm_resource_to_rsgt(struct intel_memory_region *mem, */ struct ttm_resource * intel_region_ttm_resource_alloc(struct intel_memory_region *mem, + resource_size_t offset, resource_size_t size, unsigned int flags) { @@ -202,7 +204,10 @@ intel_region_ttm_resource_alloc(struct intel_memory_region *mem, if (flags & I915_BO_ALLOC_CONTIGUOUS) place.flags |= TTM_PL_FLAG_CONTIGUOUS; - if (mem->io_size && mem->io_size < mem->total) { + if (offset != I915_BO_INVALID_OFFSET) { + place.fpfn = offset >> PAGE_SHIFT; + place.lpfn = place.fpfn + (size >> PAGE_SHIFT); + } else if (mem->io_size && mem->io_size < mem->total) { if (flags & I915_BO_ALLOC_GPU_ONLY) { place.flags |= TTM_PL_FLAG_TOPDOWN; } else { diff --git a/drivers/gpu/drm/i915/intel_region_ttm.h b/drivers/gpu/drm/i915/intel_region_ttm.h index fdee5e7bd46c..cf9d86dcf409 100644 --- a/drivers/gpu/drm/i915/intel_region_ttm.h +++ b/drivers/gpu/drm/i915/intel_region_ttm.h @@ -36,6 +36,7 @@ struct ttm_device_funcs *i915_ttm_driver(void); #ifdef CONFIG_DRM_I915_SELFTEST struct ttm_resource * intel_region_ttm_resource_alloc(struct intel_memory_region *mem, + resource_size_t offset, resource_size_t size, unsigned int flags); #endif diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c index 24cd3c3729ca..83517a703eb6 100644 --- a/drivers/gpu/drm/i915/intel_uncore.c +++ b/drivers/gpu/drm/i915/intel_uncore.c @@ -2050,14 +2050,11 @@ static int i915_pmic_bus_access_notifier(struct notifier_block *nb, return NOTIFY_OK; } -int intel_uncore_setup_mmio(struct intel_uncore *uncore) +int intel_uncore_setup_mmio(struct intel_uncore *uncore, phys_addr_t phys_addr) { struct drm_i915_private *i915 = uncore->i915; - struct pci_dev *pdev = to_pci_dev(i915->drm.dev); - int mmio_bar; int mmio_size; - mmio_bar = GRAPHICS_VER(i915) == 2 ? 1 : 0; /* * Before gen4, the registers and the GTT are behind different BARs. * However, from gen4 onwards, the registers and the GTT are shared @@ -2074,7 +2071,7 @@ int intel_uncore_setup_mmio(struct intel_uncore *uncore) else mmio_size = 2 * 1024 * 1024; - uncore->regs = pci_iomap(pdev, mmio_bar, mmio_size); + uncore->regs = ioremap(phys_addr, mmio_size); if (uncore->regs == NULL) { drm_err(&i915->drm, "failed to map registers\n"); return -EIO; @@ -2085,9 +2082,7 @@ int intel_uncore_setup_mmio(struct intel_uncore *uncore) void intel_uncore_cleanup_mmio(struct intel_uncore *uncore) { - struct pci_dev *pdev = to_pci_dev(uncore->i915->drm.dev); - - pci_iounmap(pdev, uncore->regs); + iounmap(uncore->regs); } void intel_uncore_init_early(struct intel_uncore *uncore, @@ -2475,17 +2470,46 @@ intel_uncore_forcewake_for_reg(struct intel_uncore *uncore, return fw_domains; } -u32 intel_uncore_read_with_mcr_steering_fw(struct intel_uncore *uncore, - i915_reg_t reg, - int slice, int subslice) +/** + * uncore_rw_with_mcr_steering_fw - Access a register after programming + * the MCR selector register. + * @uncore: pointer to struct intel_uncore + * @reg: register being accessed + * @rw_flag: FW_REG_READ for read access or FW_REG_WRITE for write access + * @slice: slice number (ignored for multi-cast write) + * @subslice: sub-slice number (ignored for multi-cast write) + * @value: register value to be written (ignored for read) + * + * Return: 0 for write access. register value for read access. + * + * Caller needs to make sure the relevant forcewake wells are up. + */ +static u32 uncore_rw_with_mcr_steering_fw(struct intel_uncore *uncore, + i915_reg_t reg, u8 rw_flag, + int slice, int subslice, u32 value) { - u32 mcr_mask, mcr_ss, mcr, old_mcr, val; + u32 mcr_mask, mcr_ss, mcr, old_mcr, val = 0; lockdep_assert_held(&uncore->lock); if (GRAPHICS_VER(uncore->i915) >= 11) { mcr_mask = GEN11_MCR_SLICE_MASK | GEN11_MCR_SUBSLICE_MASK; mcr_ss = GEN11_MCR_SLICE(slice) | GEN11_MCR_SUBSLICE(subslice); + + /* + * Wa_22013088509 + * + * The setting of the multicast/unicast bit usually wouldn't + * matter for read operations (which always return the value + * from a single register instance regardless of how that bit + * is set), but some platforms have a workaround requiring us + * to remain in multicast mode for reads. There's no real + * downside to this, so we'll just go ahead and do so on all + * platforms; we'll only clear the multicast bit from the mask + * when exlicitly doing a write operation. + */ + if (rw_flag == FW_REG_WRITE) + mcr_mask |= GEN11_MCR_MULTICAST; } else { mcr_mask = GEN8_MCR_SLICE_MASK | GEN8_MCR_SUBSLICE_MASK; mcr_ss = GEN8_MCR_SLICE(slice) | GEN8_MCR_SUBSLICE(subslice); @@ -2497,7 +2521,10 @@ u32 intel_uncore_read_with_mcr_steering_fw(struct intel_uncore *uncore, mcr |= mcr_ss; intel_uncore_write_fw(uncore, GEN8_MCR_SELECTOR, mcr); - val = intel_uncore_read_fw(uncore, reg); + if (rw_flag == FW_REG_READ) + val = intel_uncore_read_fw(uncore, reg); + else + intel_uncore_write_fw(uncore, reg, value); mcr &= ~mcr_mask; mcr |= old_mcr & mcr_mask; @@ -2507,14 +2534,16 @@ u32 intel_uncore_read_with_mcr_steering_fw(struct intel_uncore *uncore, return val; } -u32 intel_uncore_read_with_mcr_steering(struct intel_uncore *uncore, - i915_reg_t reg, int slice, int subslice) +static u32 uncore_rw_with_mcr_steering(struct intel_uncore *uncore, + i915_reg_t reg, u8 rw_flag, + int slice, int subslice, + u32 value) { enum forcewake_domains fw_domains; u32 val; fw_domains = intel_uncore_forcewake_for_reg(uncore, reg, - FW_REG_READ); + rw_flag); fw_domains |= intel_uncore_forcewake_for_reg(uncore, GEN8_MCR_SELECTOR, FW_REG_READ | FW_REG_WRITE); @@ -2522,7 +2551,8 @@ u32 intel_uncore_read_with_mcr_steering(struct intel_uncore *uncore, spin_lock_irq(&uncore->lock); intel_uncore_forcewake_get__locked(uncore, fw_domains); - val = intel_uncore_read_with_mcr_steering_fw(uncore, reg, slice, subslice); + val = uncore_rw_with_mcr_steering_fw(uncore, reg, rw_flag, + slice, subslice, value); intel_uncore_forcewake_put__locked(uncore, fw_domains); spin_unlock_irq(&uncore->lock); @@ -2530,6 +2560,28 @@ u32 intel_uncore_read_with_mcr_steering(struct intel_uncore *uncore, return val; } +u32 intel_uncore_read_with_mcr_steering_fw(struct intel_uncore *uncore, + i915_reg_t reg, int slice, int subslice) +{ + return uncore_rw_with_mcr_steering_fw(uncore, reg, FW_REG_READ, + slice, subslice, 0); +} + +u32 intel_uncore_read_with_mcr_steering(struct intel_uncore *uncore, + i915_reg_t reg, int slice, int subslice) +{ + return uncore_rw_with_mcr_steering(uncore, reg, FW_REG_READ, + slice, subslice, 0); +} + +void intel_uncore_write_with_mcr_steering(struct intel_uncore *uncore, + i915_reg_t reg, u32 value, + int slice, int subslice) +{ + uncore_rw_with_mcr_steering(uncore, reg, FW_REG_WRITE, + slice, subslice, value); +} + #if IS_ENABLED(CONFIG_DRM_I915_SELFTEST) #include "selftests/mock_uncore.c" #include "selftests/intel_uncore.c" diff --git a/drivers/gpu/drm/i915/intel_uncore.h b/drivers/gpu/drm/i915/intel_uncore.h index 6ff56d673e2b..52fe3d89dd2b 100644 --- a/drivers/gpu/drm/i915/intel_uncore.h +++ b/drivers/gpu/drm/i915/intel_uncore.h @@ -29,6 +29,7 @@ #include <linux/notifier.h> #include <linux/hrtimer.h> #include <linux/io-64-nonatomic-lo-hi.h> +#include <linux/types.h> #include "i915_reg_defs.h" @@ -214,12 +215,14 @@ u32 intel_uncore_read_with_mcr_steering_fw(struct intel_uncore *uncore, int slice, int subslice); u32 intel_uncore_read_with_mcr_steering(struct intel_uncore *uncore, i915_reg_t reg, int slice, int subslice); - +void intel_uncore_write_with_mcr_steering(struct intel_uncore *uncore, + i915_reg_t reg, u32 value, + int slice, int subslice); void intel_uncore_mmio_debug_init_early(struct intel_uncore_mmio_debug *mmio_debug); void intel_uncore_init_early(struct intel_uncore *uncore, struct intel_gt *gt); -int intel_uncore_setup_mmio(struct intel_uncore *uncore); +int intel_uncore_setup_mmio(struct intel_uncore *uncore, phys_addr_t phys_addr); int intel_uncore_init_mmio(struct intel_uncore *uncore); void intel_uncore_prune_engine_fw_domains(struct intel_uncore *uncore, struct intel_gt *gt); diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c index ab751192eb3b..8633bec18fa7 100644 --- a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c @@ -1112,10 +1112,16 @@ static int misaligned_case(struct i915_address_space *vm, struct intel_memory_re expected_vma_size = round_up(size, 1 << (ffs(vma->resource->page_sizes_gtt) - 1)); expected_node_size = expected_vma_size; - if (NEEDS_COMPACT_PT(vm->i915) && i915_gem_object_is_lmem(obj)) { - /* compact-pt should expand lmem node to 2MB */ + if (HAS_64K_PAGES(vm->i915) && i915_gem_object_is_lmem(obj)) { + /* + * The compact-pt should expand lmem node to 2MB for the ppGTT, + * for all other cases we should only expect 64K. + */ expected_vma_size = round_up(size, I915_GTT_PAGE_SIZE_64K); - expected_node_size = round_up(size, I915_GTT_PAGE_SIZE_2M); + if (NEEDS_COMPACT_PT(vm->i915) && !i915_is_ggtt(vm)) + expected_node_size = round_up(size, I915_GTT_PAGE_SIZE_2M); + else + expected_node_size = round_up(size, I915_GTT_PAGE_SIZE_64K); } if (vma->size != expected_vma_size || vma->node.size != expected_node_size) { @@ -1150,7 +1156,7 @@ static int misaligned_pin(struct i915_address_space *vm, flags |= PIN_GLOBAL; for_each_memory_region(mr, vm->i915, id) { - u64 min_alignment = i915_vm_min_alignment(vm, (enum intel_memory_type)id); + u64 min_alignment = i915_vm_min_alignment(vm, mr->type); u64 size = min_alignment; u64 addr = round_down(hole_start + (hole_size / 2), min_alignment); @@ -1205,7 +1211,7 @@ static int exercise_ppgtt(struct drm_i915_private *dev_priv, goto out_free; } GEM_BUG_ON(offset_in_page(ppgtt->vm.total)); - GEM_BUG_ON(!atomic_read(&ppgtt->vm.open)); + assert_vm_alive(&ppgtt->vm); err = func(&ppgtt->vm, 0, ppgtt->vm.total, end_time); @@ -1438,7 +1444,7 @@ static void track_vma_bind(struct i915_vma *vma) vma->resource->bi.pages = vma->pages; mutex_lock(&vma->vm->mutex); - list_add_tail(&vma->vm_link, &vma->vm->bound_list); + list_move_tail(&vma->vm_link, &vma->vm->bound_list); mutex_unlock(&vma->vm->mutex); } diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.c b/drivers/gpu/drm/i915/selftests/mock_gem_device.c index 573d9b2e1a4a..9c31a16f8380 100644 --- a/drivers/gpu/drm/i915/selftests/mock_gem_device.c +++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.c @@ -73,7 +73,7 @@ static void mock_device_release(struct drm_device *dev) destroy_workqueue(i915->wq); intel_region_ttm_device_fini(i915); - intel_gt_driver_late_release(to_gt(i915)); + intel_gt_driver_late_release_all(i915); intel_memory_regions_driver_release(i915); drm_mode_config_cleanup(&i915->drm); @@ -112,6 +112,11 @@ static struct dev_pm_domain pm_domain = { }, }; +static void mock_gt_probe(struct drm_i915_private *i915) +{ + i915->gt[0] = &i915->gt0; +} + struct drm_i915_private *mock_gem_device(void) { #if IS_ENABLED(CONFIG_IOMMU_API) && defined(CONFIG_INTEL_IOMMU) @@ -180,11 +185,11 @@ struct drm_i915_private *mock_gem_device(void) spin_lock_init(&i915->gpu_error.lock); i915_gem_init__mm(i915); - intel_gt_init_early(to_gt(i915), i915); - __intel_gt_init_early(to_gt(i915), i915); + intel_root_gt_init_early(i915); mock_uncore_init(&i915->uncore, i915); atomic_inc(&to_gt(i915)->wakeref.count); /* disable; no hw support */ to_gt(i915)->awake = -ENODEV; + mock_gt_probe(i915); ret = intel_region_ttm_device_init(i915); if (ret) @@ -229,7 +234,7 @@ err_unlock: err_drv: intel_region_ttm_device_fini(i915); err_ttm: - intel_gt_driver_late_release(to_gt(i915)); + intel_gt_driver_late_release_all(i915); intel_memory_regions_driver_release(i915); drm_mode_config_cleanup(&i915->drm); mock_destroy_device(i915); diff --git a/drivers/gpu/drm/i915/selftests/mock_region.c b/drivers/gpu/drm/i915/selftests/mock_region.c index f64325491f35..670557ce1024 100644 --- a/drivers/gpu/drm/i915/selftests/mock_region.c +++ b/drivers/gpu/drm/i915/selftests/mock_region.c @@ -26,6 +26,7 @@ static int mock_region_get_pages(struct drm_i915_gem_object *obj) int err; obj->mm.res = intel_region_ttm_resource_alloc(obj->mm.region, + obj->bo_offset, obj->base.size, obj->flags); if (IS_ERR(obj->mm.res)) @@ -57,6 +58,7 @@ static const struct drm_i915_gem_object_ops mock_region_obj_ops = { static int mock_object_init(struct intel_memory_region *mem, struct drm_i915_gem_object *obj, + resource_size_t offset, resource_size_t size, resource_size_t page_size, unsigned int flags) @@ -70,6 +72,8 @@ static int mock_object_init(struct intel_memory_region *mem, drm_gem_private_object_init(&i915->drm, &obj->base, size); i915_gem_object_init(obj, &mock_region_obj_ops, &lock_class, flags); + obj->bo_offset = offset; + obj->read_domains = I915_GEM_DOMAIN_CPU | I915_GEM_DOMAIN_GTT; i915_gem_object_set_cache_coherency(obj, I915_CACHE_NONE); diff --git a/drivers/misc/mei/Kconfig b/drivers/misc/mei/Kconfig index 0e0bcd0da852..d21486d69df2 100644 --- a/drivers/misc/mei/Kconfig +++ b/drivers/misc/mei/Kconfig @@ -46,6 +46,20 @@ config INTEL_MEI_TXE Supported SoCs: Intel Bay Trail +config INTEL_MEI_GSC + tristate "Intel MEI GSC embedded device" + depends on INTEL_MEI + depends on INTEL_MEI_ME + depends on X86 && PCI + depends on DRM_I915 + help + Intel auxiliary driver for GSC devices embedded in Intel graphics devices. + + An MEI device here called GSC can be embedded in an + Intel graphics devices, to support a range of chassis + tasks such as graphics card firmware update and security + tasks. + source "drivers/misc/mei/hdcp/Kconfig" source "drivers/misc/mei/pxp/Kconfig" diff --git a/drivers/misc/mei/Makefile b/drivers/misc/mei/Makefile index d8e5165917f2..fb740d754900 100644 --- a/drivers/misc/mei/Makefile +++ b/drivers/misc/mei/Makefile @@ -18,6 +18,9 @@ obj-$(CONFIG_INTEL_MEI_ME) += mei-me.o mei-me-objs := pci-me.o mei-me-objs += hw-me.o +obj-$(CONFIG_INTEL_MEI_GSC) += mei-gsc.o +mei-gsc-objs := gsc-me.o + obj-$(CONFIG_INTEL_MEI_TXE) += mei-txe.o mei-txe-objs := pci-txe.o mei-txe-objs += hw-txe.o diff --git a/drivers/misc/mei/bus-fixup.c b/drivers/misc/mei/bus-fixup.c index 67844089db21..59506ba6fc48 100644 --- a/drivers/misc/mei/bus-fixup.c +++ b/drivers/misc/mei/bus-fixup.c @@ -30,6 +30,12 @@ static const uuid_le mei_nfc_info_guid = MEI_UUID_NFC_INFO; #define MEI_UUID_MKHIF_FIX UUID_LE(0x55213584, 0x9a29, 0x4916, \ 0xba, 0xdf, 0xf, 0xb7, 0xed, 0x68, 0x2a, 0xeb) +#define MEI_UUID_IGSC_MKHI UUID_LE(0xE2C2AFA2, 0x3817, 0x4D19, \ + 0x9D, 0x95, 0x06, 0xB1, 0x6B, 0x58, 0x8A, 0x5D) + +#define MEI_UUID_IGSC_MKHI_FIX UUID_LE(0x46E0C1FB, 0xA546, 0x414F, \ + 0x91, 0x70, 0xB7, 0xF4, 0x6D, 0x57, 0xB4, 0xAD) + #define MEI_UUID_HDCP UUID_LE(0xB638AB7E, 0x94E2, 0x4EA2, \ 0xA5, 0x52, 0xD1, 0xC5, 0x4B, 0x62, 0x7F, 0x04) @@ -241,6 +247,23 @@ static void mei_mkhi_fix(struct mei_cl_device *cldev) mei_cldev_disable(cldev); } +static void mei_gsc_mkhi_ver(struct mei_cl_device *cldev) +{ + int ret; + + /* No need to enable the client if nothing is needed from it */ + if (!cldev->bus->fw_f_fw_ver_supported) + return; + + ret = mei_cldev_enable(cldev); + if (ret) + return; + + ret = mei_fwver(cldev); + if (ret < 0) + dev_err(&cldev->dev, "FW version command failed %d\n", ret); + mei_cldev_disable(cldev); +} /** * mei_wd - wd client on the bus, change protocol version * as the API has changed. @@ -492,6 +515,8 @@ static struct mei_fixup { MEI_FIXUP(MEI_UUID_NFC_HCI, mei_nfc), MEI_FIXUP(MEI_UUID_WD, mei_wd), MEI_FIXUP(MEI_UUID_MKHIF_FIX, mei_mkhi_fix), + MEI_FIXUP(MEI_UUID_IGSC_MKHI, mei_gsc_mkhi_ver), + MEI_FIXUP(MEI_UUID_IGSC_MKHI_FIX, mei_gsc_mkhi_ver), MEI_FIXUP(MEI_UUID_HDCP, whitelist), MEI_FIXUP(MEI_UUID_ANY, vt_support), MEI_FIXUP(MEI_UUID_PAVP, whitelist), diff --git a/drivers/misc/mei/gsc-me.c b/drivers/misc/mei/gsc-me.c new file mode 100644 index 000000000000..c8145e9b62b6 --- /dev/null +++ b/drivers/misc/mei/gsc-me.c @@ -0,0 +1,259 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright(c) 2019-2022, Intel Corporation. All rights reserved. + * + * Intel Management Engine Interface (Intel MEI) Linux driver + */ + +#include <linux/module.h> +#include <linux/mei_aux.h> +#include <linux/device.h> +#include <linux/irqreturn.h> +#include <linux/jiffies.h> +#include <linux/ktime.h> +#include <linux/delay.h> +#include <linux/pm_runtime.h> + +#include "mei_dev.h" +#include "hw-me.h" +#include "hw-me-regs.h" + +#include "mei-trace.h" + +#define MEI_GSC_RPM_TIMEOUT 500 + +static int mei_gsc_read_hfs(const struct mei_device *dev, int where, u32 *val) +{ + struct mei_me_hw *hw = to_me_hw(dev); + + *val = ioread32(hw->mem_addr + where + 0xC00); + + return 0; +} + +static int mei_gsc_probe(struct auxiliary_device *aux_dev, + const struct auxiliary_device_id *aux_dev_id) +{ + struct mei_aux_device *adev = auxiliary_dev_to_mei_aux_dev(aux_dev); + struct mei_device *dev; + struct mei_me_hw *hw; + struct device *device; + const struct mei_cfg *cfg; + int ret; + + cfg = mei_me_get_cfg(aux_dev_id->driver_data); + if (!cfg) + return -ENODEV; + + device = &aux_dev->dev; + + dev = mei_me_dev_init(device, cfg); + if (!dev) { + ret = -ENOMEM; + goto err; + } + + hw = to_me_hw(dev); + hw->mem_addr = devm_ioremap_resource(device, &adev->bar); + if (IS_ERR(hw->mem_addr)) { + dev_err(device, "mmio not mapped\n"); + ret = PTR_ERR(hw->mem_addr); + goto err; + } + + hw->irq = adev->irq; + hw->read_fws = mei_gsc_read_hfs; + + dev_set_drvdata(device, dev); + + ret = devm_request_threaded_irq(device, hw->irq, + mei_me_irq_quick_handler, + mei_me_irq_thread_handler, + IRQF_ONESHOT, KBUILD_MODNAME, dev); + if (ret) { + dev_err(device, "irq register failed %d\n", ret); + goto err; + } + + pm_runtime_get_noresume(device); + pm_runtime_set_active(device); + pm_runtime_enable(device); + + /* Continue to char device setup in spite of firmware handshake failure. + * In order to provide access to the firmware status registers to the user + * space via sysfs. + */ + if (mei_start(dev)) + dev_warn(device, "init hw failure.\n"); + + pm_runtime_set_autosuspend_delay(device, MEI_GSC_RPM_TIMEOUT); + pm_runtime_use_autosuspend(device); + + ret = mei_register(dev, device); + if (ret) + goto register_err; + + pm_runtime_put_noidle(device); + return 0; + +register_err: + mei_stop(dev); + devm_free_irq(device, hw->irq, dev); + +err: + dev_err(device, "probe failed: %d\n", ret); + dev_set_drvdata(device, NULL); + return ret; +} + +static void mei_gsc_remove(struct auxiliary_device *aux_dev) +{ + struct mei_device *dev; + struct mei_me_hw *hw; + + dev = dev_get_drvdata(&aux_dev->dev); + if (!dev) + return; + + hw = to_me_hw(dev); + + mei_stop(dev); + + mei_deregister(dev); + + pm_runtime_disable(&aux_dev->dev); + + mei_disable_interrupts(dev); + devm_free_irq(&aux_dev->dev, hw->irq, dev); +} + +static int __maybe_unused mei_gsc_pm_suspend(struct device *device) +{ + struct mei_device *dev = dev_get_drvdata(device); + + if (!dev) + return -ENODEV; + + mei_stop(dev); + + mei_disable_interrupts(dev); + + return 0; +} + +static int __maybe_unused mei_gsc_pm_resume(struct device *device) +{ + struct mei_device *dev = dev_get_drvdata(device); + int err; + + if (!dev) + return -ENODEV; + + err = mei_restart(dev); + if (err) + return err; + + /* Start timer if stopped in suspend */ + schedule_delayed_work(&dev->timer_work, HZ); + + return 0; +} + +static int __maybe_unused mei_gsc_pm_runtime_idle(struct device *device) +{ + struct mei_device *dev = dev_get_drvdata(device); + + if (!dev) + return -ENODEV; + if (mei_write_is_idle(dev)) + pm_runtime_autosuspend(device); + + return -EBUSY; +} + +static int __maybe_unused mei_gsc_pm_runtime_suspend(struct device *device) +{ + struct mei_device *dev = dev_get_drvdata(device); + struct mei_me_hw *hw; + int ret; + + if (!dev) + return -ENODEV; + + mutex_lock(&dev->device_lock); + + if (mei_write_is_idle(dev)) { + hw = to_me_hw(dev); + hw->pg_state = MEI_PG_ON; + ret = 0; + } else { + ret = -EAGAIN; + } + + mutex_unlock(&dev->device_lock); + + return ret; +} + +static int __maybe_unused mei_gsc_pm_runtime_resume(struct device *device) +{ + struct mei_device *dev = dev_get_drvdata(device); + struct mei_me_hw *hw; + irqreturn_t irq_ret; + + if (!dev) + return -ENODEV; + + mutex_lock(&dev->device_lock); + + hw = to_me_hw(dev); + hw->pg_state = MEI_PG_OFF; + + mutex_unlock(&dev->device_lock); + + irq_ret = mei_me_irq_thread_handler(1, dev); + if (irq_ret != IRQ_HANDLED) + dev_err(dev->dev, "thread handler fail %d\n", irq_ret); + + return 0; +} + +static const struct dev_pm_ops mei_gsc_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(mei_gsc_pm_suspend, + mei_gsc_pm_resume) + SET_RUNTIME_PM_OPS(mei_gsc_pm_runtime_suspend, + mei_gsc_pm_runtime_resume, + mei_gsc_pm_runtime_idle) +}; + +static const struct auxiliary_device_id mei_gsc_id_table[] = { + { + .name = "i915.mei-gsc", + .driver_data = MEI_ME_GSC_CFG, + + }, + { + .name = "i915.mei-gscfi", + .driver_data = MEI_ME_GSCFI_CFG, + }, + { + /* sentinel */ + } +}; +MODULE_DEVICE_TABLE(auxiliary, mei_gsc_id_table); + +static struct auxiliary_driver mei_gsc_driver = { + .probe = mei_gsc_probe, + .remove = mei_gsc_remove, + .driver = { + /* auxiliary_driver_register() sets .name to be the modname */ + .pm = &mei_gsc_pm_ops, + }, + .id_table = mei_gsc_id_table +}; +module_auxiliary_driver(mei_gsc_driver); + +MODULE_AUTHOR("Intel Corporation"); +MODULE_ALIAS("auxiliary:i915.mei-gsc"); +MODULE_ALIAS("auxiliary:i915.mei-gscfi"); +MODULE_LICENSE("GPL"); diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c index 719fee9af156..9870bf717979 100644 --- a/drivers/misc/mei/hw-me.c +++ b/drivers/misc/mei/hw-me.c @@ -1226,6 +1226,7 @@ irqreturn_t mei_me_irq_quick_handler(int irq, void *dev_id) me_intr_disable(dev, hcsr); return IRQ_WAKE_THREAD; } +EXPORT_SYMBOL_GPL(mei_me_irq_quick_handler); /** * mei_me_irq_thread_handler - function called after ISR to handle the interrupt @@ -1326,6 +1327,7 @@ end: mutex_unlock(&dev->device_lock); return IRQ_HANDLED; } +EXPORT_SYMBOL_GPL(mei_me_irq_thread_handler); static const struct mei_hw_ops mei_me_hw_ops = { @@ -1440,6 +1442,12 @@ static bool mei_me_fw_type_sps_ign(const struct pci_dev *pdev) #define MEI_CFG_KIND_ITOUCH \ .kind = "itouch" +#define MEI_CFG_TYPE_GSC \ + .kind = "gsc" + +#define MEI_CFG_TYPE_GSCFI \ + .kind = "gscfi" + #define MEI_CFG_FW_SPS_IGN \ .quirk_probe = mei_me_fw_type_sps_ign @@ -1572,6 +1580,20 @@ static const struct mei_cfg mei_me_pch15_sps_cfg = { MEI_CFG_FW_SPS_IGN, }; +/* Graphics System Controller */ +static const struct mei_cfg mei_me_gsc_cfg = { + MEI_CFG_TYPE_GSC, + MEI_CFG_PCH8_HFS, + MEI_CFG_FW_VER_SUPP, +}; + +/* Graphics System Controller Firmware Interface */ +static const struct mei_cfg mei_me_gscfi_cfg = { + MEI_CFG_TYPE_GSCFI, + MEI_CFG_PCH8_HFS, + MEI_CFG_FW_VER_SUPP, +}; + /* * mei_cfg_list - A list of platform platform specific configurations. * Note: has to be synchronized with enum mei_cfg_idx. @@ -1592,6 +1614,8 @@ static const struct mei_cfg *const mei_cfg_list[] = { [MEI_ME_PCH12_SPS_ITOUCH_CFG] = &mei_me_pch12_itouch_sps_cfg, [MEI_ME_PCH15_CFG] = &mei_me_pch15_cfg, [MEI_ME_PCH15_SPS_CFG] = &mei_me_pch15_sps_cfg, + [MEI_ME_GSC_CFG] = &mei_me_gsc_cfg, + [MEI_ME_GSCFI_CFG] = &mei_me_gscfi_cfg, }; const struct mei_cfg *mei_me_get_cfg(kernel_ulong_t idx) @@ -1602,7 +1626,8 @@ const struct mei_cfg *mei_me_get_cfg(kernel_ulong_t idx) return NULL; return mei_cfg_list[idx]; -}; +} +EXPORT_SYMBOL_GPL(mei_me_get_cfg); /** * mei_me_dev_init - allocates and initializes the mei device structure @@ -1637,4 +1662,4 @@ struct mei_device *mei_me_dev_init(struct device *parent, return dev; } - +EXPORT_SYMBOL_GPL(mei_me_dev_init); diff --git a/drivers/misc/mei/hw-me.h b/drivers/misc/mei/hw-me.h index 00a7132ac7a2..a071c645e905 100644 --- a/drivers/misc/mei/hw-me.h +++ b/drivers/misc/mei/hw-me.h @@ -112,6 +112,8 @@ enum mei_cfg_idx { MEI_ME_PCH12_SPS_ITOUCH_CFG, MEI_ME_PCH15_CFG, MEI_ME_PCH15_SPS_CFG, + MEI_ME_GSC_CFG, + MEI_ME_GSCFI_CFG, MEI_ME_NUM_CFG, }; diff --git a/include/linux/mei_aux.h b/include/linux/mei_aux.h new file mode 100644 index 000000000000..587f25128848 --- /dev/null +++ b/include/linux/mei_aux.h @@ -0,0 +1,19 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (c) 2022, Intel Corporation. All rights reserved. + */ +#ifndef _LINUX_MEI_AUX_H +#define _LINUX_MEI_AUX_H + +#include <linux/auxiliary_bus.h> + +struct mei_aux_device { + struct auxiliary_device aux_dev; + int irq; + struct resource bar; +}; + +#define auxiliary_dev_to_mei_aux_dev(auxiliary_dev) \ + container_of(auxiliary_dev, struct mei_aux_device, aux_dev) + +#endif /* _LINUX_MEI_AUX_H */ diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h index 05c3642aaece..35ca528803fd 100644 --- a/include/uapi/drm/i915_drm.h +++ b/include/uapi/drm/i915_drm.h @@ -172,7 +172,9 @@ enum drm_i915_gem_engine_class { I915_ENGINE_CLASS_INVALID = -1 }; -/* +/** + * struct i915_engine_class_instance - Engine class/instance identifier + * * There may be more than one engine fulfilling any role within the system. * Each engine of a class is given a unique instance number and therefore * any engine can be specified by its class:instance tuplet. APIs that allow @@ -180,10 +182,21 @@ enum drm_i915_gem_engine_class { * for this identification. */ struct i915_engine_class_instance { - __u16 engine_class; /* see enum drm_i915_gem_engine_class */ - __u16 engine_instance; + /** + * @engine_class: + * + * Engine class from enum drm_i915_gem_engine_class + */ + __u16 engine_class; #define I915_ENGINE_CLASS_INVALID_NONE -1 #define I915_ENGINE_CLASS_INVALID_VIRTUAL -2 + + /** + * @engine_instance: + * + * Engine instance. + */ + __u16 engine_instance; }; /** @@ -2657,24 +2670,65 @@ enum drm_i915_perf_record_type { DRM_I915_PERF_RECORD_MAX /* non-ABI */ }; -/* +/** + * struct drm_i915_perf_oa_config + * * Structure to upload perf dynamic configuration into the kernel. */ struct drm_i915_perf_oa_config { - /** String formatted like "%08x-%04x-%04x-%04x-%012x" */ + /** + * @uuid: + * + * String formatted like "%\08x-%\04x-%\04x-%\04x-%\012x" + */ char uuid[36]; + /** + * @n_mux_regs: + * + * Number of mux regs in &mux_regs_ptr. + */ __u32 n_mux_regs; + + /** + * @n_boolean_regs: + * + * Number of boolean regs in &boolean_regs_ptr. + */ __u32 n_boolean_regs; + + /** + * @n_flex_regs: + * + * Number of flex regs in &flex_regs_ptr. + */ __u32 n_flex_regs; - /* - * These fields are pointers to tuples of u32 values (register address, - * value). For example the expected length of the buffer pointed by - * mux_regs_ptr is (2 * sizeof(u32) * n_mux_regs). + /** + * @mux_regs_ptr: + * + * Pointer to tuples of u32 values (register address, value) for mux + * registers. Expected length of buffer is (2 * sizeof(u32) * + * &n_mux_regs). */ __u64 mux_regs_ptr; + + /** + * @boolean_regs_ptr: + * + * Pointer to tuples of u32 values (register address, value) for mux + * registers. Expected length of buffer is (2 * sizeof(u32) * + * &n_boolean_regs). + */ __u64 boolean_regs_ptr; + + /** + * @flex_regs_ptr: + * + * Pointer to tuples of u32 values (register address, value) for mux + * registers. Expected length of buffer is (2 * sizeof(u32) * + * &n_flex_regs). + */ __u64 flex_regs_ptr; }; @@ -2685,12 +2739,24 @@ struct drm_i915_perf_oa_config { * @data_ptr is also depends on the specific @query_id. */ struct drm_i915_query_item { - /** @query_id: The id for this query */ + /** + * @query_id: + * + * The id for this query. Currently accepted query IDs are: + * - %DRM_I915_QUERY_TOPOLOGY_INFO (see struct drm_i915_query_topology_info) + * - %DRM_I915_QUERY_ENGINE_INFO (see struct drm_i915_engine_info) + * - %DRM_I915_QUERY_PERF_CONFIG (see struct drm_i915_query_perf_config) + * - %DRM_I915_QUERY_MEMORY_REGIONS (see struct drm_i915_query_memory_regions) + * - %DRM_I915_QUERY_HWCONFIG_BLOB (see `GuC HWCONFIG blob uAPI`) + * - %DRM_I915_QUERY_GEOMETRY_SUBSLICES (see struct drm_i915_query_topology_info) + */ __u64 query_id; -#define DRM_I915_QUERY_TOPOLOGY_INFO 1 -#define DRM_I915_QUERY_ENGINE_INFO 2 -#define DRM_I915_QUERY_PERF_CONFIG 3 -#define DRM_I915_QUERY_MEMORY_REGIONS 4 +#define DRM_I915_QUERY_TOPOLOGY_INFO 1 +#define DRM_I915_QUERY_ENGINE_INFO 2 +#define DRM_I915_QUERY_PERF_CONFIG 3 +#define DRM_I915_QUERY_MEMORY_REGIONS 4 +#define DRM_I915_QUERY_HWCONFIG_BLOB 5 +#define DRM_I915_QUERY_GEOMETRY_SUBSLICES 6 /* Must be kept compact -- no holes and well documented */ /** @@ -2706,14 +2772,17 @@ struct drm_i915_query_item { /** * @flags: * - * When query_id == DRM_I915_QUERY_TOPOLOGY_INFO, must be 0. + * When &query_id == %DRM_I915_QUERY_TOPOLOGY_INFO, must be 0. * - * When query_id == DRM_I915_QUERY_PERF_CONFIG, must be one of the + * When &query_id == %DRM_I915_QUERY_PERF_CONFIG, must be one of the * following: * - * - DRM_I915_QUERY_PERF_CONFIG_LIST - * - DRM_I915_QUERY_PERF_CONFIG_DATA_FOR_UUID - * - DRM_I915_QUERY_PERF_CONFIG_FOR_UUID + * - %DRM_I915_QUERY_PERF_CONFIG_LIST + * - %DRM_I915_QUERY_PERF_CONFIG_DATA_FOR_UUID + * - %DRM_I915_QUERY_PERF_CONFIG_FOR_UUID + * + * When &query_id == %DRM_I915_QUERY_GEOMETRY_SUBSLICES must contain + * a struct i915_engine_class_instance that references a render engine. */ __u32 flags; #define DRM_I915_QUERY_PERF_CONFIG_LIST 1 @@ -2771,66 +2840,112 @@ struct drm_i915_query { __u64 items_ptr; }; -/* - * Data written by the kernel with query DRM_I915_QUERY_TOPOLOGY_INFO : - * - * data: contains the 3 pieces of information : - * - * - the slice mask with one bit per slice telling whether a slice is - * available. The availability of slice X can be queried with the following - * formula : - * - * (data[X / 8] >> (X % 8)) & 1 - * - * - the subslice mask for each slice with one bit per subslice telling - * whether a subslice is available. Gen12 has dual-subslices, which are - * similar to two gen11 subslices. For gen12, this array represents dual- - * subslices. The availability of subslice Y in slice X can be queried - * with the following formula : - * - * (data[subslice_offset + - * X * subslice_stride + - * Y / 8] >> (Y % 8)) & 1 - * - * - the EU mask for each subslice in each slice with one bit per EU telling - * whether an EU is available. The availability of EU Z in subslice Y in - * slice X can be queried with the following formula : +/** + * struct drm_i915_query_topology_info * - * (data[eu_offset + - * (X * max_subslices + Y) * eu_stride + - * Z / 8] >> (Z % 8)) & 1 + * Describes slice/subslice/EU information queried by + * %DRM_I915_QUERY_TOPOLOGY_INFO */ struct drm_i915_query_topology_info { - /* + /** + * @flags: + * * Unused for now. Must be cleared to zero. */ __u16 flags; + /** + * @max_slices: + * + * The number of bits used to express the slice mask. + */ __u16 max_slices; + + /** + * @max_subslices: + * + * The number of bits used to express the subslice mask. + */ __u16 max_subslices; + + /** + * @max_eus_per_subslice: + * + * The number of bits in the EU mask that correspond to a single + * subslice's EUs. + */ __u16 max_eus_per_subslice; - /* + /** + * @subslice_offset: + * * Offset in data[] at which the subslice masks are stored. */ __u16 subslice_offset; - /* + /** + * @subslice_stride: + * * Stride at which each of the subslice masks for each slice are * stored. */ __u16 subslice_stride; - /* + /** + * @eu_offset: + * * Offset in data[] at which the EU masks are stored. */ __u16 eu_offset; - /* + /** + * @eu_stride: + * * Stride at which each of the EU masks for each subslice are stored. */ __u16 eu_stride; + /** + * @data: + * + * Contains 3 pieces of information : + * + * - The slice mask with one bit per slice telling whether a slice is + * available. The availability of slice X can be queried with the + * following formula : + * + * .. code:: c + * + * (data[X / 8] >> (X % 8)) & 1 + * + * Starting with Xe_HP platforms, Intel hardware no longer has + * traditional slices so i915 will always report a single slice + * (hardcoded slicemask = 0x1) which contains all of the platform's + * subslices. I.e., the mask here does not reflect any of the newer + * hardware concepts such as "gslices" or "cslices" since userspace + * is capable of inferring those from the subslice mask. + * + * - The subslice mask for each slice with one bit per subslice telling + * whether a subslice is available. Starting with Gen12 we use the + * term "subslice" to refer to what the hardware documentation + * describes as a "dual-subslices." The availability of subslice Y + * in slice X can be queried with the following formula : + * + * .. code:: c + * + * (data[subslice_offset + X * subslice_stride + Y / 8] >> (Y % 8)) & 1 + * + * - The EU mask for each subslice in each slice, with one bit per EU + * telling whether an EU is available. The availability of EU Z in + * subslice Y in slice X can be queried with the following formula : + * + * .. code:: c + * + * (data[eu_offset + + * (X * max_subslices + Y) * eu_stride + + * Z / 8 + * ] >> (Z % 8)) & 1 + */ __u8 data[]; }; @@ -2951,52 +3066,68 @@ struct drm_i915_query_engine_info { struct drm_i915_engine_info engines[]; }; -/* - * Data written by the kernel with query DRM_I915_QUERY_PERF_CONFIG. +/** + * struct drm_i915_query_perf_config + * + * Data written by the kernel with query %DRM_I915_QUERY_PERF_CONFIG and + * %DRM_I915_QUERY_GEOMETRY_SUBSLICES. */ struct drm_i915_query_perf_config { union { - /* - * When query_item.flags == DRM_I915_QUERY_PERF_CONFIG_LIST, i915 sets - * this fields to the number of configurations available. + /** + * @n_configs: + * + * When &drm_i915_query_item.flags == + * %DRM_I915_QUERY_PERF_CONFIG_LIST, i915 sets this fields to + * the number of configurations available. */ __u64 n_configs; - /* - * When query_id == DRM_I915_QUERY_PERF_CONFIG_DATA_FOR_ID, - * i915 will use the value in this field as configuration - * identifier to decide what data to write into config_ptr. + /** + * @config: + * + * When &drm_i915_query_item.flags == + * %DRM_I915_QUERY_PERF_CONFIG_DATA_FOR_ID, i915 will use the + * value in this field as configuration identifier to decide + * what data to write into config_ptr. */ __u64 config; - /* - * When query_id == DRM_I915_QUERY_PERF_CONFIG_DATA_FOR_UUID, - * i915 will use the value in this field as configuration - * identifier to decide what data to write into config_ptr. + /** + * @uuid: + * + * When &drm_i915_query_item.flags == + * %DRM_I915_QUERY_PERF_CONFIG_DATA_FOR_UUID, i915 will use the + * value in this field as configuration identifier to decide + * what data to write into config_ptr. * * String formatted like "%08x-%04x-%04x-%04x-%012x" */ char uuid[36]; }; - /* + /** + * @flags: + * * Unused for now. Must be cleared to zero. */ __u32 flags; - /* - * When query_item.flags == DRM_I915_QUERY_PERF_CONFIG_LIST, i915 will - * write an array of __u64 of configuration identifiers. + /** + * @data: * - * When query_item.flags == DRM_I915_QUERY_PERF_CONFIG_DATA, i915 will - * write a struct drm_i915_perf_oa_config. If the following fields of - * drm_i915_perf_oa_config are set not set to 0, i915 will write into - * the associated pointers the values of submitted when the + * When &drm_i915_query_item.flags == %DRM_I915_QUERY_PERF_CONFIG_LIST, + * i915 will write an array of __u64 of configuration identifiers. + * + * When &drm_i915_query_item.flags == %DRM_I915_QUERY_PERF_CONFIG_DATA, + * i915 will write a struct drm_i915_perf_oa_config. If the following + * fields of struct drm_i915_perf_oa_config are not set to 0, i915 will + * write into the associated pointers the values of submitted when the * configuration was created : * - * - n_mux_regs - * - n_boolean_regs - * - n_flex_regs + * - &drm_i915_perf_oa_config.n_mux_regs + * - &drm_i915_perf_oa_config.n_boolean_regs + * - &drm_i915_perf_oa_config.n_flex_regs */ __u8 data[]; }; @@ -3135,6 +3266,16 @@ struct drm_i915_query_memory_regions { }; /** + * DOC: GuC HWCONFIG blob uAPI + * + * The GuC produces a blob with information about the current device. + * i915 reads this blob from GuC and makes it available via this uAPI. + * + * The format and meaning of the blob content are documented in the + * Programmer's Reference Manual. + */ + +/** * struct drm_i915_gem_create_ext - Existing gem_create behaviour, with added * extension support using struct i915_user_extension. * |