diff options
Diffstat (limited to 'shared-core/i915_dma.c')
| -rw-r--r-- | shared-core/i915_dma.c | 1030 |
1 files changed, 0 insertions, 1030 deletions
diff --git a/shared-core/i915_dma.c b/shared-core/i915_dma.c deleted file mode 100644 index 9afb2e84..00000000 --- a/shared-core/i915_dma.c +++ /dev/null @@ -1,1030 +0,0 @@ -/* i915_dma.c -- DMA support for the I915 -*- linux-c -*- - */ -/* - * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. - * All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the - * "Software"), to deal in the Software without restriction, including - * without limitation the rights to use, copy, modify, merge, publish, - * distribute, sub license, and/or sell copies of the Software, and to - * permit persons to whom the Software is furnished to do so, subject to - * the following conditions: - * - * The above copyright notice and this permission notice (including the - * next paragraph) shall be included in all copies or substantial portions - * of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. - * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR - * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, - * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE - * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - * - */ - -#include "drmP.h" -#include "drm.h" -#include "i915_drm.h" -#include "i915_drv.h" - -/* Really want an OS-independent resettable timer. Would like to have - * this loop run for (eg) 3 sec, but have the timer reset every time - * the head pointer changes, so that EBUSY only happens if the ring - * actually stalls for (eg) 3 seconds. - */ -int i915_wait_ring(struct drm_device * dev, int n, const char *caller) -{ - drm_i915_private_t *dev_priv = dev->dev_private; - drm_i915_ring_buffer_t *ring = &(dev_priv->ring); - u32 last_head = I915_READ(PRB0_HEAD) & HEAD_ADDR; - u32 acthd_reg = IS_I965G(dev) ? ACTHD_I965 : ACTHD; - u32 last_acthd = I915_READ(acthd_reg); - u32 acthd; - int i; - - for (i = 0; i < 100000; i++) { - ring->head = I915_READ(PRB0_HEAD) & HEAD_ADDR; - acthd = I915_READ(acthd_reg); - ring->space = ring->head - (ring->tail + 8); - if (ring->space < 0) - ring->space += ring->Size; - if (ring->space >= n) - return 0; - - if (dev_priv->sarea_priv) - dev_priv->sarea_priv->perf_boxes |= I915_BOX_WAIT; - - if (ring->head != last_head) - i = 0; - - if (acthd != last_acthd) - i = 0; - - last_head = ring->head; - last_acthd = acthd; - DRM_UDELAY(10 * 1000); - } - - return -EBUSY; -} - -/** - * Sets up the hardware status page for devices that need a physical address - * in the register. - */ -static int i915_init_phys_hws(struct drm_device *dev) -{ - drm_i915_private_t *dev_priv = dev->dev_private; - - /* Program Hardware Status Page */ - DRM_UNLOCK(); - dev_priv->status_page_dmah = - drm_pci_alloc(dev, PAGE_SIZE, PAGE_SIZE, 0xffffffff); - DRM_LOCK(); - if (!dev_priv->status_page_dmah) { - DRM_ERROR("Can not allocate hardware status page\n"); - return -ENOMEM; - } - dev_priv->hw_status_page = dev_priv->status_page_dmah->vaddr; - dev_priv->dma_status_page = dev_priv->status_page_dmah->busaddr; - - memset(dev_priv->hw_status_page, 0, PAGE_SIZE); - - I915_WRITE(HWS_PGA, dev_priv->dma_status_page); - DRM_DEBUG("Enabled hardware status page\n"); - return 0; -} - -/** - * Frees the hardware status page, whether it's a physical address or a virtual - * address set up by the X Server. - */ -static void i915_free_hws(struct drm_device *dev) -{ - drm_i915_private_t *dev_priv = dev->dev_private; - if (dev_priv->status_page_dmah) { - drm_pci_free(dev, dev_priv->status_page_dmah); - dev_priv->status_page_dmah = NULL; - } - - if (dev_priv->status_gfx_addr) { - dev_priv->status_gfx_addr = 0; - drm_core_ioremapfree(&dev_priv->hws_map, dev); - } - - /* Need to rewrite hardware status page */ - I915_WRITE(HWS_PGA, 0x1ffff000); -} - -void i915_kernel_lost_context(struct drm_device * dev) -{ - drm_i915_private_t *dev_priv = dev->dev_private; - drm_i915_ring_buffer_t *ring = &(dev_priv->ring); - - ring->head = I915_READ(PRB0_HEAD) & HEAD_ADDR; - ring->tail = I915_READ(PRB0_TAIL) & TAIL_ADDR; - ring->space = ring->head - (ring->tail + 8); - if (ring->space < 0) - ring->space += ring->Size; - - if (ring->head == ring->tail && dev_priv->sarea_priv) - dev_priv->sarea_priv->perf_boxes |= I915_BOX_RING_EMPTY; -} - -static int i915_dma_cleanup(struct drm_device * dev) -{ - drm_i915_private_t *dev_priv = dev->dev_private; - /* Make sure interrupts are disabled here because the uninstall ioctl - * may not have been called from userspace and after dev_private - * is freed, it's too late. - */ - if (dev->irq_enabled) - drm_irq_uninstall(dev); - - if (dev_priv->ring.virtual_start) { - drm_core_ioremapfree(&dev_priv->ring.map, dev); - dev_priv->ring.virtual_start = NULL; - dev_priv->ring.map.handle = NULL; - dev_priv->ring.map.size = 0; - } - - /* Clear the HWS virtual address at teardown */ - if (I915_NEED_GFX_HWS(dev)) - i915_free_hws(dev); - - return 0; -} - -static int i915_initialize(struct drm_device * dev, drm_i915_init_t * init) -{ - drm_i915_private_t *dev_priv = dev->dev_private; - - dev_priv->sarea = drm_getsarea(dev); - if (!dev_priv->sarea) { - DRM_ERROR("can not find sarea!\n"); - i915_dma_cleanup(dev); - return -EINVAL; - } - - dev_priv->sarea_priv = (drm_i915_sarea_t *) - ((u8 *) dev_priv->sarea->handle + init->sarea_priv_offset); - - if (init->ring_size != 0) { - if (dev_priv->ring.ring_obj != NULL) { - i915_dma_cleanup(dev); - DRM_ERROR("Client tried to initialize ringbuffer in " - "GEM mode\n"); - return -EINVAL; - } - - dev_priv->ring.Size = init->ring_size; - dev_priv->ring.tail_mask = dev_priv->ring.Size - 1; - - dev_priv->ring.map.offset = init->ring_start; - dev_priv->ring.map.size = init->ring_size; - dev_priv->ring.map.type = 0; - dev_priv->ring.map.flags = 0; - dev_priv->ring.map.mtrr = 0; - - drm_core_ioremap(&dev_priv->ring.map, dev); - - if (dev_priv->ring.map.handle == NULL) { - i915_dma_cleanup(dev); - DRM_ERROR("can not ioremap virtual address for" - " ring buffer\n"); - return -ENOMEM; - } - } - - dev_priv->ring.virtual_start = dev_priv->ring.map.handle; - - dev_priv->cpp = init->cpp; - dev_priv->back_offset = init->back_offset; - dev_priv->front_offset = init->front_offset; - dev_priv->current_page = 0; - dev_priv->sarea_priv->pf_current_page = dev_priv->current_page; - - /* Allow hardware batchbuffers unless told otherwise. - */ - dev_priv->allow_batchbuffer = 1; - - return 0; -} - -static int i915_dma_resume(struct drm_device * dev) -{ - drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; - - DRM_DEBUG("\n"); - - if (!dev_priv->sarea) { - DRM_ERROR("can not find sarea!\n"); - return -EINVAL; - } - - if (dev_priv->ring.map.handle == NULL) { - DRM_ERROR("can not ioremap virtual address for" - " ring buffer\n"); - return -ENOMEM; - } - - /* Program Hardware Status Page */ - if (!dev_priv->hw_status_page) { - DRM_ERROR("Can not find hardware status page\n"); - return -EINVAL; - } - DRM_DEBUG("hw status page @ %p\n", dev_priv->hw_status_page); - - if (dev_priv->status_gfx_addr != 0) - I915_WRITE(HWS_PGA, dev_priv->status_gfx_addr); - else - I915_WRITE(HWS_PGA, dev_priv->dma_status_page); - DRM_DEBUG("Enabled hardware status page\n"); - - return 0; -} - -static int i915_dma_init(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - drm_i915_init_t *init = data; - int retcode = 0; - - switch (init->func) { - case I915_INIT_DMA: - retcode = i915_initialize(dev, init); - break; - case I915_CLEANUP_DMA: - retcode = i915_dma_cleanup(dev); - break; - case I915_RESUME_DMA: - retcode = i915_dma_resume(dev); - break; - default: - retcode = -EINVAL; - break; - } - - return retcode; -} - -/* Implement basically the same security restrictions as hardware does - * for MI_BATCH_NON_SECURE. These can be made stricter at any time. - * - * Most of the calculations below involve calculating the size of a - * particular instruction. It's important to get the size right as - * that tells us where the next instruction to check is. Any illegal - * instruction detected will be given a size of zero, which is a - * signal to abort the rest of the buffer. - */ -static int do_validate_cmd(int cmd) -{ - switch (((cmd >> 29) & 0x7)) { - case 0x0: - switch ((cmd >> 23) & 0x3f) { - case 0x0: - return 1; /* MI_NOOP */ - case 0x4: - return 1; /* MI_FLUSH */ - default: - return 0; /* disallow everything else */ - } - break; - case 0x1: - return 0; /* reserved */ - case 0x2: - return (cmd & 0xff) + 2; /* 2d commands */ - case 0x3: - if (((cmd >> 24) & 0x1f) <= 0x18) - return 1; - - switch ((cmd >> 24) & 0x1f) { - case 0x1c: - return 1; - case 0x1d: - switch ((cmd >> 16) & 0xff) { - case 0x3: - return (cmd & 0x1f) + 2; - case 0x4: - return (cmd & 0xf) + 2; - default: - return (cmd & 0xffff) + 2; - } - case 0x1e: - if (cmd & (1 << 23)) - return (cmd & 0xffff) + 1; - else - return 1; - case 0x1f: - if ((cmd & (1 << 23)) == 0) /* inline vertices */ - return (cmd & 0x1ffff) + 2; - else if (cmd & (1 << 17)) /* indirect random */ - if ((cmd & 0xffff) == 0) - return 0; /* unknown length, too hard */ - else - return (((cmd & 0xffff) + 1) / 2) + 1; - else - return 2; /* indirect sequential */ - default: - return 0; - } - default: - return 0; - } - - return 0; -} - -static int validate_cmd(int cmd) -{ - int ret = do_validate_cmd(cmd); - -/* printk("validate_cmd( %x ): %d\n", cmd, ret); */ - - return ret; -} - -static int i915_emit_cmds(struct drm_device *dev, int __user *buffer, - int dwords) -{ - drm_i915_private_t *dev_priv = dev->dev_private; - int i; - RING_LOCALS; - - if ((dwords+1) * sizeof(int) >= dev_priv->ring.Size - 8) - return -EINVAL; - - BEGIN_LP_RING((dwords+1)&~1); - - for (i = 0; i < dwords;) { - int cmd, sz; - - if (DRM_COPY_FROM_USER_UNCHECKED(&cmd, &buffer[i], sizeof(cmd))) - return -EINVAL; - - if ((sz = validate_cmd(cmd)) == 0 || i + sz > dwords) - return -EINVAL; - - OUT_RING(cmd); - - while (++i, --sz) { - if (DRM_COPY_FROM_USER_UNCHECKED(&cmd, &buffer[i], - sizeof(cmd))) { - return -EINVAL; - } - OUT_RING(cmd); - } - } - - if (dwords & 1) - OUT_RING(0); - - ADVANCE_LP_RING(); - - return 0; -} - -int i915_emit_box(struct drm_device * dev, - struct drm_clip_rect __user * boxes, - int i, int DR1, int DR4) -{ - drm_i915_private_t *dev_priv = dev->dev_private; - struct drm_clip_rect box; - RING_LOCALS; - - if (DRM_COPY_FROM_USER_UNCHECKED(&box, &boxes[i], sizeof(box))) { - return -EFAULT; - } - - if (box.y2 <= box.y1 || box.x2 <= box.x1 || box.y2 <= 0 || box.x2 <= 0) { - DRM_ERROR("Bad box %d,%d..%d,%d\n", - box.x1, box.y1, box.x2, box.y2); - return -EINVAL; - } - - if (IS_I965G(dev)) { - BEGIN_LP_RING(4); - OUT_RING(GFX_OP_DRAWRECT_INFO_I965); - OUT_RING((box.x1 & 0xffff) | (box.y1 << 16)); - OUT_RING(((box.x2 - 1) & 0xffff) | ((box.y2 - 1) << 16)); - OUT_RING(DR4); - ADVANCE_LP_RING(); - } else { - BEGIN_LP_RING(6); - OUT_RING(GFX_OP_DRAWRECT_INFO); - OUT_RING(DR1); - OUT_RING((box.x1 & 0xffff) | (box.y1 << 16)); - OUT_RING(((box.x2 - 1) & 0xffff) | ((box.y2 - 1) << 16)); - OUT_RING(DR4); - OUT_RING(0); - ADVANCE_LP_RING(); - } - - return 0; -} - -/* XXX: Emitting the counter should really be moved to part of the IRQ - * emit. For now, do it in both places: - */ - -static void i915_emit_breadcrumb(struct drm_device *dev) -{ - drm_i915_private_t *dev_priv = dev->dev_private; - RING_LOCALS; - - dev_priv->counter++; - if (dev_priv->counter > 0x7FFFFFFFUL) - dev_priv->counter = 0; - if (dev_priv->sarea_priv) - dev_priv->sarea_priv->last_enqueue = dev_priv->counter; - - BEGIN_LP_RING(4); - OUT_RING(MI_STORE_DWORD_INDEX); - OUT_RING(I915_BREADCRUMB_INDEX << MI_STORE_DWORD_INDEX_SHIFT); - OUT_RING(dev_priv->counter); - OUT_RING(0); - ADVANCE_LP_RING(); -} - -static int i915_dispatch_cmdbuffer(struct drm_device * dev, - drm_i915_cmdbuffer_t * cmd) -{ - int nbox = cmd->num_cliprects; - int i = 0, count, ret; - - if (cmd->sz & 0x3) { - DRM_ERROR("alignment\n"); - return -EINVAL; - } - - i915_kernel_lost_context(dev); - - count = nbox ? nbox : 1; - - for (i = 0; i < count; i++) { - if (i < nbox) { - ret = i915_emit_box(dev, cmd->cliprects, i, - cmd->DR1, cmd->DR4); - if (ret) - return ret; - } - - ret = i915_emit_cmds(dev, (int __user *)cmd->buf, cmd->sz / 4); - if (ret) - return ret; - } - - i915_emit_breadcrumb(dev); - return 0; -} - -static int i915_dispatch_batchbuffer(struct drm_device * dev, - drm_i915_batchbuffer_t * batch) -{ - drm_i915_private_t *dev_priv = dev->dev_private; - struct drm_clip_rect __user *boxes = batch->cliprects; - int nbox = batch->num_cliprects; - int i = 0, count; - RING_LOCALS; - - if ((batch->start | batch->used) & 0x7) { - DRM_ERROR("alignment\n"); - return -EINVAL; - } - - i915_kernel_lost_context(dev); - - count = nbox ? nbox : 1; - - for (i = 0; i < count; i++) { - if (i < nbox) { - int ret = i915_emit_box(dev, boxes, i, - batch->DR1, batch->DR4); - if (ret) - return ret; - } - - if (!IS_I830(dev) && !IS_845G(dev)) { - BEGIN_LP_RING(2); - if (IS_I965G(dev)) { - OUT_RING(MI_BATCH_BUFFER_START | (2 << 6) | MI_BATCH_NON_SECURE_I965); - OUT_RING(batch->start); - } else { - OUT_RING(MI_BATCH_BUFFER_START | (2 << 6)); - OUT_RING(batch->start | MI_BATCH_NON_SECURE); - } - ADVANCE_LP_RING(); - } else { - BEGIN_LP_RING(4); - OUT_RING(MI_BATCH_BUFFER); - OUT_RING(batch->start | MI_BATCH_NON_SECURE); - OUT_RING(batch->start + batch->used - 4); - OUT_RING(0); - ADVANCE_LP_RING(); - } - } - - i915_emit_breadcrumb(dev); - - return 0; -} - -static int i915_dispatch_flip(struct drm_device * dev) -{ - drm_i915_private_t *dev_priv = dev->dev_private; - RING_LOCALS; - - if (!dev_priv->sarea_priv) - return -EINVAL; - - DRM_DEBUG("%s: page=%d pfCurrentPage=%d\n", - __func__, - dev_priv->current_page, - dev_priv->sarea_priv->pf_current_page); - - i915_kernel_lost_context(dev); - - BEGIN_LP_RING(2); - OUT_RING(MI_FLUSH | MI_READ_FLUSH); - OUT_RING(0); - ADVANCE_LP_RING(); - - BEGIN_LP_RING(6); - OUT_RING(CMD_OP_DISPLAYBUFFER_INFO | ASYNC_FLIP); - OUT_RING(0); - if (dev_priv->current_page == 0) { - OUT_RING(dev_priv->back_offset); - dev_priv->current_page = 1; - } else { - OUT_RING(dev_priv->front_offset); - dev_priv->current_page = 0; - } - OUT_RING(0); - ADVANCE_LP_RING(); - - BEGIN_LP_RING(2); - OUT_RING(MI_WAIT_FOR_EVENT | MI_WAIT_FOR_PLANE_A_FLIP); - OUT_RING(0); - ADVANCE_LP_RING(); - - dev_priv->sarea_priv->last_enqueue = dev_priv->counter++; - - BEGIN_LP_RING(4); - OUT_RING(MI_STORE_DWORD_INDEX); - OUT_RING(I915_BREADCRUMB_INDEX << MI_STORE_DWORD_INDEX_SHIFT); - OUT_RING(dev_priv->counter); - OUT_RING(0); - ADVANCE_LP_RING(); - - dev_priv->sarea_priv->pf_current_page = dev_priv->current_page; - return 0; -} - -static int i915_quiescent(struct drm_device * dev) -{ - drm_i915_private_t *dev_priv = dev->dev_private; - - i915_kernel_lost_context(dev); - return i915_wait_ring(dev, dev_priv->ring.Size - 8, __func__); -} - -static int i915_flush_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - int ret; - - RING_LOCK_TEST_WITH_RETURN(dev, file_priv); - - ret = i915_quiescent(dev); - - return ret; -} - -static int i915_batchbuffer(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; - drm_i915_sarea_t *sarea_priv = (drm_i915_sarea_t *) - dev_priv->sarea_priv; - drm_i915_batchbuffer_t *batch = data; - size_t cliplen; - int ret; - - if (!dev_priv->allow_batchbuffer) { - DRM_ERROR("Batchbuffer ioctl disabled\n"); - return -EINVAL; - } - - DRM_DEBUG("i915 batchbuffer, start %x used %d cliprects %d\n", - batch->start, batch->used, batch->num_cliprects); - - RING_LOCK_TEST_WITH_RETURN(dev, file_priv); - - DRM_UNLOCK(); - cliplen = batch->num_cliprects * sizeof(struct drm_clip_rect); - if (batch->num_cliprects && DRM_VERIFYAREA_READ(batch->cliprects, - cliplen)) { - DRM_LOCK(); - return -EFAULT; - } - if (batch->num_cliprects) { - ret = vslock(batch->cliprects, cliplen); - if (ret) { - DRM_ERROR("Fault wiring cliprects\n"); - DRM_LOCK(); - return -EFAULT; - } - } - DRM_LOCK(); - - ret = i915_dispatch_batchbuffer(dev, batch); - - if (sarea_priv) - sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv); - - DRM_UNLOCK(); - if (batch->num_cliprects) - vsunlock(batch->cliprects, cliplen); - DRM_LOCK(); - - return ret; -} - -static int i915_cmdbuffer(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; - drm_i915_sarea_t *sarea_priv = (drm_i915_sarea_t *) - dev_priv->sarea_priv; - drm_i915_cmdbuffer_t *cmdbuf = data; - size_t cliplen; - int ret; - - DRM_DEBUG("i915 cmdbuffer, buf %p sz %d cliprects %d\n", - cmdbuf->buf, cmdbuf->sz, cmdbuf->num_cliprects); - - RING_LOCK_TEST_WITH_RETURN(dev, file_priv); - - DRM_UNLOCK(); - cliplen = cmdbuf->num_cliprects * sizeof(struct drm_clip_rect); - if (cmdbuf->num_cliprects && DRM_VERIFYAREA_READ(cmdbuf->cliprects, - cliplen)) { - DRM_ERROR("Fault accessing cliprects\n"); - DRM_LOCK(); - return -EFAULT; - } - if (cmdbuf->num_cliprects) { - ret = vslock(cmdbuf->cliprects, cliplen); - if (ret) { - DRM_ERROR("Fault wiring cliprects\n"); - DRM_LOCK(); - return -EFAULT; - } - ret = vslock(cmdbuf->buf, cmdbuf->sz); - if (ret) { - vsunlock(cmdbuf->cliprects, cliplen); - DRM_ERROR("Fault wiring cmds\n"); - DRM_LOCK(); - return -EFAULT; - } - } - DRM_LOCK(); - - ret = i915_dispatch_cmdbuffer(dev, cmdbuf); - DRM_UNLOCK(); - if (cmdbuf->num_cliprects) { - vsunlock(cmdbuf->buf, cmdbuf->sz); - vsunlock(cmdbuf->cliprects, cliplen); - } - DRM_LOCK(); - if (ret) { - DRM_ERROR("i915_dispatch_cmdbuffer failed\n"); - return ret; - } - - if (sarea_priv) - sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv); - return 0; -} - -static int i915_flip_bufs(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - int ret; - - DRM_DEBUG("%s\n", __func__); - - LOCK_TEST_WITH_RETURN(dev, file_priv); - - ret = i915_dispatch_flip(dev); - - return ret; -} - -static int i915_getparam(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - drm_i915_private_t *dev_priv = dev->dev_private; - drm_i915_getparam_t *param = data; - int value; - - if (!dev_priv) { - DRM_ERROR("called with no initialization\n"); - return -EINVAL; - } - - switch (param->param) { - case I915_PARAM_IRQ_ACTIVE: - value = dev->irq_enabled ? 1 : 0; - break; - case I915_PARAM_ALLOW_BATCHBUFFER: - value = dev_priv->allow_batchbuffer ? 1 : 0; - break; - case I915_PARAM_LAST_DISPATCH: - value = READ_BREADCRUMB(dev_priv); - break; - case I915_PARAM_CHIPSET_ID: - value = dev->pci_device; - break; - case I915_PARAM_HAS_GEM: - value = 0; - break; - default: - DRM_ERROR("Unknown parameter %d\n", param->param); - return -EINVAL; - } - - if (DRM_COPY_TO_USER(param->value, &value, sizeof(int))) { - DRM_ERROR("DRM_COPY_TO_USER failed\n"); - return -EFAULT; - } - - return 0; -} - -static int i915_setparam(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - drm_i915_private_t *dev_priv = dev->dev_private; - drm_i915_setparam_t *param = data; - - if (!dev_priv) { - DRM_ERROR("called with no initialization\n"); - return -EINVAL; - } - - switch (param->param) { - case I915_SETPARAM_USE_MI_BATCHBUFFER_START: - break; - case I915_SETPARAM_TEX_LRU_LOG_GRANULARITY: - dev_priv->tex_lru_log_granularity = param->value; - break; - case I915_SETPARAM_ALLOW_BATCHBUFFER: - dev_priv->allow_batchbuffer = param->value; - break; - default: - DRM_ERROR("unknown parameter %d\n", param->param); - return -EINVAL; - } - - return 0; -} - -static int i915_set_status_page(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - drm_i915_private_t *dev_priv = dev->dev_private; - drm_i915_hws_addr_t *hws = data; - - if (!I915_NEED_GFX_HWS(dev)) - return -EINVAL; - - if (!dev_priv) { - DRM_ERROR("called with no initialization\n"); - return -EINVAL; - } - - DRM_DEBUG("set status page addr 0x%08x\n", (u32)hws->addr); - - dev_priv->status_gfx_addr = hws->addr & (0x1ffff<<12); - - dev_priv->hws_map.offset = dev->agp->base + hws->addr; - dev_priv->hws_map.size = 4*1024; - dev_priv->hws_map.type = 0; - dev_priv->hws_map.flags = 0; - dev_priv->hws_map.mtrr = 0; - - drm_core_ioremap(&dev_priv->hws_map, dev); - if (dev_priv->hws_map.handle == NULL) { - i915_dma_cleanup(dev); - dev_priv->status_gfx_addr = 0; - DRM_ERROR("can not ioremap virtual address for" - " G33 hw status page\n"); - return -ENOMEM; - } - dev_priv->hw_status_page = dev_priv->hws_map.handle; - - memset(dev_priv->hw_status_page, 0, PAGE_SIZE); - I915_WRITE(HWS_PGA, dev_priv->status_gfx_addr); - DRM_DEBUG("load hws HWS_PGA with gfx mem 0x%x\n", - dev_priv->status_gfx_addr); - DRM_DEBUG("load hws at %p\n", dev_priv->hw_status_page); - return 0; -} - -int i915_driver_load(struct drm_device *dev, unsigned long flags) -{ - struct drm_i915_private *dev_priv = dev->dev_private; - unsigned long base, size; - int ret = 0, mmio_bar = IS_I9XX(dev) ? 0 : 1; - - /* i915 has 4 more counters */ - dev->counters += 4; - dev->types[6] = _DRM_STAT_IRQ; - dev->types[7] = _DRM_STAT_PRIMARY; - dev->types[8] = _DRM_STAT_SECONDARY; - dev->types[9] = _DRM_STAT_DMA; - - dev_priv = drm_alloc(sizeof(drm_i915_private_t), DRM_MEM_DRIVER); - if (dev_priv == NULL) - return -ENOMEM; - - memset(dev_priv, 0, sizeof(drm_i915_private_t)); - - dev->dev_private = (void *)dev_priv; - dev_priv->dev = dev; - - /* Add register map (needed for suspend/resume) */ - base = drm_get_resource_start(dev, mmio_bar); - size = drm_get_resource_len(dev, mmio_bar); - - ret = drm_addmap(dev, base, size, _DRM_REGISTERS, - _DRM_KERNEL | _DRM_DRIVER, &dev_priv->mmio_map); - - if (IS_GM45(dev)) - dev->driver->get_vblank_counter = gm45_get_vblank_counter; - else - dev->driver->get_vblank_counter = i915_get_vblank_counter; - -#ifdef I915_HAVE_GEM - i915_gem_load(dev); -#endif - /* Init HWS */ - if (!I915_NEED_GFX_HWS(dev)) { - ret = i915_init_phys_hws(dev); - if (ret != 0) - return ret; - } -#ifdef __linux__ - /* On the 945G/GM, the chipset reports the MSI capability on the - * integrated graphics even though the support isn't actually there - * according to the published specs. It doesn't appear to function - * correctly in testing on 945G. - * This may be a side effect of MSI having been made available for PEG - * and the registers being closely associated. - * - * According to chipset errata, on the 965GM, MSI interrupts may - * be lost or delayed - */ - if (!IS_I945G(dev) && !IS_I945GM(dev) && !IS_I965GM(dev)) - if (pci_enable_msi(dev->pdev)) - DRM_ERROR("failed to enable MSI\n"); - - intel_opregion_init(dev); -#endif - DRM_SPININIT(&dev_priv->user_irq_lock, "userirq"); - - ret = drm_vblank_init(dev, I915_NUM_PIPE); - - if (ret) { - (void) i915_driver_unload(dev); - return ret; - } - - return ret; -} - -int i915_driver_unload(struct drm_device *dev) -{ - struct drm_i915_private *dev_priv = dev->dev_private; - - i915_free_hws(dev); - - drm_rmmap(dev, dev_priv->mmio_map); -#ifdef __linux__ - intel_opregion_free(dev); -#endif - DRM_SPINUNINIT(&dev_priv->user_irq_lock); - - drm_free(dev->dev_private, sizeof(drm_i915_private_t), - DRM_MEM_DRIVER); - - return 0; -} - -int i915_driver_open(struct drm_device *dev, struct drm_file *file_priv) -{ - struct drm_i915_file_private *i915_file_priv; - - DRM_DEBUG("\n"); - i915_file_priv = (struct drm_i915_file_private *) - drm_alloc(sizeof(*i915_file_priv), DRM_MEM_FILES); - - if (!i915_file_priv) - return -ENOMEM; - - file_priv->driver_priv = i915_file_priv; - - i915_file_priv->mm.last_gem_seqno = 0; - i915_file_priv->mm.last_gem_throttle_seqno = 0; - - return 0; -} - -void i915_driver_lastclose(struct drm_device * dev) -{ - drm_i915_private_t *dev_priv = dev->dev_private; - - if (!dev_priv) - return; -#ifdef I915_HAVE_GEM - i915_gem_lastclose(dev); -#endif - if (dev_priv->agp_heap) - i915_mem_takedown(&(dev_priv->agp_heap)); - - i915_dma_cleanup(dev); -} - -void i915_driver_preclose(struct drm_device * dev, struct drm_file *file_priv) -{ - drm_i915_private_t *dev_priv = dev->dev_private; - i915_mem_release(dev, file_priv, dev_priv->agp_heap); -} - -void i915_driver_postclose(struct drm_device *dev, struct drm_file *file_priv) -{ - struct drm_i915_file_private *i915_file_priv = file_priv->driver_priv; - - drm_free(i915_file_priv, sizeof(*i915_file_priv), DRM_MEM_FILES); -} - -struct drm_ioctl_desc i915_ioctls[] = { - DRM_IOCTL_DEF(DRM_I915_INIT, i915_dma_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - DRM_IOCTL_DEF(DRM_I915_FLUSH, i915_flush_ioctl, DRM_AUTH), - DRM_IOCTL_DEF(DRM_I915_FLIP, i915_flip_bufs, DRM_AUTH), - DRM_IOCTL_DEF(DRM_I915_BATCHBUFFER, i915_batchbuffer, DRM_AUTH), - DRM_IOCTL_DEF(DRM_I915_IRQ_EMIT, i915_irq_emit, DRM_AUTH), - DRM_IOCTL_DEF(DRM_I915_IRQ_WAIT, i915_irq_wait, DRM_AUTH), - DRM_IOCTL_DEF(DRM_I915_GETPARAM, i915_getparam, DRM_AUTH), - DRM_IOCTL_DEF(DRM_I915_SETPARAM, i915_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - DRM_IOCTL_DEF(DRM_I915_ALLOC, i915_mem_alloc, DRM_AUTH), - DRM_IOCTL_DEF(DRM_I915_FREE, i915_mem_free, DRM_AUTH), - DRM_IOCTL_DEF(DRM_I915_INIT_HEAP, i915_mem_init_heap, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - DRM_IOCTL_DEF(DRM_I915_CMDBUFFER, i915_cmdbuffer, DRM_AUTH), - DRM_IOCTL_DEF(DRM_I915_DESTROY_HEAP, i915_mem_destroy_heap, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY ), - DRM_IOCTL_DEF(DRM_I915_SET_VBLANK_PIPE, i915_vblank_pipe_set, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY ), - DRM_IOCTL_DEF(DRM_I915_GET_VBLANK_PIPE, i915_vblank_pipe_get, DRM_AUTH ), - DRM_IOCTL_DEF(DRM_I915_VBLANK_SWAP, i915_vblank_swap, DRM_AUTH), - DRM_IOCTL_DEF(DRM_I915_HWS_ADDR, i915_set_status_page, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), -#ifdef I915_HAVE_GEM - DRM_IOCTL_DEF(DRM_I915_GEM_INIT, i915_gem_init_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - DRM_IOCTL_DEF(DRM_I915_GEM_EXECBUFFER, i915_gem_execbuffer, DRM_AUTH), - DRM_IOCTL_DEF(DRM_I915_GEM_PIN, i915_gem_pin_ioctl, DRM_AUTH|DRM_ROOT_ONLY), - DRM_IOCTL_DEF(DRM_I915_GEM_UNPIN, i915_gem_unpin_ioctl, DRM_AUTH|DRM_ROOT_ONLY), - DRM_IOCTL_DEF(DRM_I915_GEM_BUSY, i915_gem_busy_ioctl, DRM_AUTH), - DRM_IOCTL_DEF(DRM_I915_GEM_THROTTLE, i915_gem_throttle_ioctl, DRM_AUTH), - DRM_IOCTL_DEF(DRM_I915_GEM_ENTERVT, i915_gem_entervt_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - DRM_IOCTL_DEF(DRM_I915_GEM_LEAVEVT, i915_gem_leavevt_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - DRM_IOCTL_DEF(DRM_I915_GEM_CREATE, i915_gem_create_ioctl, 0), - DRM_IOCTL_DEF(DRM_I915_GEM_PREAD, i915_gem_pread_ioctl, 0), - DRM_IOCTL_DEF(DRM_I915_GEM_PWRITE, i915_gem_pwrite_ioctl, 0), - DRM_IOCTL_DEF(DRM_I915_GEM_MMAP, i915_gem_mmap_ioctl, 0), - DRM_IOCTL_DEF(DRM_I915_GEM_SET_DOMAIN, i915_gem_set_domain_ioctl, 0), - DRM_IOCTL_DEF(DRM_I915_GEM_SW_FINISH, i915_gem_sw_finish_ioctl, 0), - DRM_IOCTL_DEF(DRM_I915_GEM_SET_TILING, i915_gem_set_tiling, 0), - DRM_IOCTL_DEF(DRM_I915_GEM_GET_TILING, i915_gem_get_tiling, 0), -#endif -}; - -int i915_max_ioctl = DRM_ARRAY_SIZE(i915_ioctls); - -/** - * Determine if the device really is AGP or not. - * - * All Intel graphics chipsets are treated as AGP, even if they are really - * PCI-e. - * - * \param dev The device to be tested. - * - * \returns - * A value of 1 is always retured to indictate every i9x5 is AGP. - */ -int i915_driver_device_is_agp(struct drm_device * dev) -{ - return 1; -} |