diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c | 1776 |
1 files changed, 1776 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c b/drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c new file mode 100644 index 000000000000..46a9617fee5f --- /dev/null +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c @@ -0,0 +1,1776 @@ +/* + * Copyright 2019 Advanced Micro Devices, Inc. + * + * 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, sublicense, + * 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 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 NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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 <linux/delay.h> +#include <linux/firmware.h> +#include <linux/module.h> +#include <linux/pci.h> + +#include "amdgpu.h" +#include "amdgpu_ucode.h" +#include "amdgpu_trace.h" + +#include "gc/gc_10_3_0_offset.h" +#include "gc/gc_10_3_0_sh_mask.h" +#include "ivsrcid/sdma0/irqsrcs_sdma0_5_0.h" +#include "ivsrcid/sdma1/irqsrcs_sdma1_5_0.h" +#include "ivsrcid/sdma2/irqsrcs_sdma2_5_0.h" +#include "ivsrcid/sdma3/irqsrcs_sdma3_5_0.h" + +#include "soc15_common.h" +#include "soc15.h" +#include "navi10_sdma_pkt_open.h" +#include "nbio_v2_3.h" +#include "sdma_common.h" +#include "sdma_v5_2.h" + +MODULE_FIRMWARE("amdgpu/sienna_cichlid_sdma.bin"); +MODULE_FIRMWARE("amdgpu/navy_flounder_sdma.bin"); + +#define SDMA1_REG_OFFSET 0x600 +#define SDMA3_REG_OFFSET 0x400 +#define SDMA0_HYP_DEC_REG_START 0x5880 +#define SDMA0_HYP_DEC_REG_END 0x5893 +#define SDMA1_HYP_DEC_REG_OFFSET 0x20 + +static void sdma_v5_2_set_ring_funcs(struct amdgpu_device *adev); +static void sdma_v5_2_set_buffer_funcs(struct amdgpu_device *adev); +static void sdma_v5_2_set_vm_pte_funcs(struct amdgpu_device *adev); +static void sdma_v5_2_set_irq_funcs(struct amdgpu_device *adev); + +static u32 sdma_v5_2_get_reg_offset(struct amdgpu_device *adev, u32 instance, u32 internal_offset) +{ + u32 base; + + if (internal_offset >= SDMA0_HYP_DEC_REG_START && + internal_offset <= SDMA0_HYP_DEC_REG_END) { + base = adev->reg_offset[GC_HWIP][0][1]; + if (instance != 0) + internal_offset += SDMA1_HYP_DEC_REG_OFFSET * instance; + } else { + if (instance < 2) { + base = adev->reg_offset[GC_HWIP][0][0]; + if (instance == 1) + internal_offset += SDMA1_REG_OFFSET; + } else { + base = adev->reg_offset[GC_HWIP][0][2]; + if (instance == 3) + internal_offset += SDMA3_REG_OFFSET; + } + } + + return base + internal_offset; +} + +static void sdma_v5_2_init_golden_registers(struct amdgpu_device *adev) +{ + switch (adev->asic_type) { + case CHIP_SIENNA_CICHLID: + case CHIP_NAVY_FLOUNDER: + break; + default: + break; + } +} + +static int sdma_v5_2_init_inst_ctx(struct amdgpu_sdma_instance *sdma_inst) +{ + int err = 0; + const struct sdma_firmware_header_v1_0 *hdr; + + err = amdgpu_ucode_validate(sdma_inst->fw); + if (err) + return err; + + hdr = (const struct sdma_firmware_header_v1_0 *)sdma_inst->fw->data; + sdma_inst->fw_version = le32_to_cpu(hdr->header.ucode_version); + sdma_inst->feature_version = le32_to_cpu(hdr->ucode_feature_version); + + if (sdma_inst->feature_version >= 20) + sdma_inst->burst_nop = true; + + return 0; +} + +static void sdma_v5_2_destroy_inst_ctx(struct amdgpu_device *adev) +{ + int i; + + for (i = 0; i < adev->sdma.num_instances; i++) { + release_firmware(adev->sdma.instance[i].fw); + adev->sdma.instance[i].fw = NULL; + + if (adev->asic_type == CHIP_SIENNA_CICHLID) + break; + } + + memset((void*)adev->sdma.instance, 0, + sizeof(struct amdgpu_sdma_instance) * AMDGPU_MAX_SDMA_INSTANCES); +} + +/** + * sdma_v5_2_init_microcode - load ucode images from disk + * + * @adev: amdgpu_device pointer + * + * Use the firmware interface to load the ucode images into + * the driver (not loaded into hw). + * Returns 0 on success, error on failure. + */ + +// emulation only, won't work on real chip +// navi10 real chip need to use PSP to load firmware +static int sdma_v5_2_init_microcode(struct amdgpu_device *adev) +{ + const char *chip_name; + char fw_name[40]; + int err = 0, i; + struct amdgpu_firmware_info *info = NULL; + const struct common_firmware_header *header = NULL; + + DRM_DEBUG("\n"); + + switch (adev->asic_type) { + case CHIP_SIENNA_CICHLID: + chip_name = "sienna_cichlid"; + break; + case CHIP_NAVY_FLOUNDER: + chip_name = "navy_flounder"; + break; + default: + BUG(); + } + + snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_sdma.bin", chip_name); + + err = request_firmware(&adev->sdma.instance[0].fw, fw_name, adev->dev); + if (err) + goto out; + + err = sdma_v5_2_init_inst_ctx(&adev->sdma.instance[0]); + if (err) + goto out; + + for (i = 1; i < adev->sdma.num_instances; i++) { + if (adev->asic_type == CHIP_SIENNA_CICHLID || + adev->asic_type == CHIP_NAVY_FLOUNDER) { + memcpy((void*)&adev->sdma.instance[i], + (void*)&adev->sdma.instance[0], + sizeof(struct amdgpu_sdma_instance)); + } else { + snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_sdma%d.bin", chip_name, i); + err = request_firmware(&adev->sdma.instance[i].fw, fw_name, adev->dev); + if (err) + goto out; + + err = sdma_v5_2_init_inst_ctx(&adev->sdma.instance[0]); + if (err) + goto out; + } + } + + DRM_DEBUG("psp_load == '%s'\n", + adev->firmware.load_type == AMDGPU_FW_LOAD_PSP ? "true" : "false"); + + if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) { + for (i = 0; i < adev->sdma.num_instances; i++) { + info = &adev->firmware.ucode[AMDGPU_UCODE_ID_SDMA0 + i]; + info->ucode_id = AMDGPU_UCODE_ID_SDMA0 + i; + info->fw = adev->sdma.instance[i].fw; + header = (const struct common_firmware_header *)info->fw->data; + adev->firmware.fw_size += + ALIGN(le32_to_cpu(header->ucode_size_bytes), PAGE_SIZE); + } + } + +out: + if (err) { + DRM_ERROR("sdma_v5_2: Failed to load firmware \"%s\"\n", fw_name); + sdma_v5_2_destroy_inst_ctx(adev); + } + return err; +} + +static unsigned sdma_v5_2_ring_init_cond_exec(struct amdgpu_ring *ring) +{ + unsigned ret; + + amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_COND_EXE)); + amdgpu_ring_write(ring, lower_32_bits(ring->cond_exe_gpu_addr)); + amdgpu_ring_write(ring, upper_32_bits(ring->cond_exe_gpu_addr)); + amdgpu_ring_write(ring, 1); + ret = ring->wptr & ring->buf_mask;/* this is the offset we need patch later */ + amdgpu_ring_write(ring, 0x55aa55aa);/* insert dummy here and patch it later */ + + return ret; +} + +static void sdma_v5_2_ring_patch_cond_exec(struct amdgpu_ring *ring, + unsigned offset) +{ + unsigned cur; + + BUG_ON(offset > ring->buf_mask); + BUG_ON(ring->ring[offset] != 0x55aa55aa); + + cur = (ring->wptr - 1) & ring->buf_mask; + if (cur > offset) + ring->ring[offset] = cur - offset; + else + ring->ring[offset] = (ring->buf_mask + 1) - offset + cur; +} + +/** + * sdma_v5_2_ring_get_rptr - get the current read pointer + * + * @ring: amdgpu ring pointer + * + * Get the current rptr from the hardware (NAVI10+). + */ +static uint64_t sdma_v5_2_ring_get_rptr(struct amdgpu_ring *ring) +{ + u64 *rptr; + + /* XXX check if swapping is necessary on BE */ + rptr = ((u64 *)&ring->adev->wb.wb[ring->rptr_offs]); + + DRM_DEBUG("rptr before shift == 0x%016llx\n", *rptr); + return ((*rptr) >> 2); +} + +/** + * sdma_v5_2_ring_get_wptr - get the current write pointer + * + * @ring: amdgpu ring pointer + * + * Get the current wptr from the hardware (NAVI10+). + */ +static uint64_t sdma_v5_2_ring_get_wptr(struct amdgpu_ring *ring) +{ + struct amdgpu_device *adev = ring->adev; + u64 wptr; + + if (ring->use_doorbell) { + /* XXX check if swapping is necessary on BE */ + wptr = READ_ONCE(*((u64 *)&adev->wb.wb[ring->wptr_offs])); + DRM_DEBUG("wptr/doorbell before shift == 0x%016llx\n", wptr); + } else { + wptr = RREG32(sdma_v5_2_get_reg_offset(adev, ring->me, mmSDMA0_GFX_RB_WPTR_HI)); + wptr = wptr << 32; + wptr |= RREG32(sdma_v5_2_get_reg_offset(adev, ring->me, mmSDMA0_GFX_RB_WPTR)); + DRM_DEBUG("wptr before shift [%i] wptr == 0x%016llx\n", ring->me, wptr); + } + + return wptr >> 2; +} + +/** + * sdma_v5_2_ring_set_wptr - commit the write pointer + * + * @ring: amdgpu ring pointer + * + * Write the wptr back to the hardware (NAVI10+). + */ +static void sdma_v5_2_ring_set_wptr(struct amdgpu_ring *ring) +{ + struct amdgpu_device *adev = ring->adev; + + DRM_DEBUG("Setting write pointer\n"); + if (ring->use_doorbell) { + DRM_DEBUG("Using doorbell -- " + "wptr_offs == 0x%08x " + "lower_32_bits(ring->wptr) << 2 == 0x%08x " + "upper_32_bits(ring->wptr) << 2 == 0x%08x\n", + ring->wptr_offs, + lower_32_bits(ring->wptr << 2), + upper_32_bits(ring->wptr << 2)); + /* XXX check if swapping is necessary on BE */ + adev->wb.wb[ring->wptr_offs] = lower_32_bits(ring->wptr << 2); + adev->wb.wb[ring->wptr_offs + 1] = upper_32_bits(ring->wptr << 2); + DRM_DEBUG("calling WDOORBELL64(0x%08x, 0x%016llx)\n", + ring->doorbell_index, ring->wptr << 2); + WDOORBELL64(ring->doorbell_index, ring->wptr << 2); + } else { + DRM_DEBUG("Not using doorbell -- " + "mmSDMA%i_GFX_RB_WPTR == 0x%08x " + "mmSDMA%i_GFX_RB_WPTR_HI == 0x%08x\n", + ring->me, + lower_32_bits(ring->wptr << 2), + ring->me, + upper_32_bits(ring->wptr << 2)); + WREG32(sdma_v5_2_get_reg_offset(adev, ring->me, mmSDMA0_GFX_RB_WPTR), + lower_32_bits(ring->wptr << 2)); + WREG32(sdma_v5_2_get_reg_offset(adev, ring->me, mmSDMA0_GFX_RB_WPTR_HI), + upper_32_bits(ring->wptr << 2)); + } +} + +static void sdma_v5_2_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count) +{ + struct amdgpu_sdma_instance *sdma = amdgpu_sdma_get_instance_from_ring(ring); + int i; + + for (i = 0; i < count; i++) + if (sdma && sdma->burst_nop && (i == 0)) + amdgpu_ring_write(ring, ring->funcs->nop | + SDMA_PKT_NOP_HEADER_COUNT(count - 1)); + else + amdgpu_ring_write(ring, ring->funcs->nop); +} + +/** + * sdma_v5_2_ring_emit_ib - Schedule an IB on the DMA engine + * + * @ring: amdgpu ring pointer + * @ib: IB object to schedule + * + * Schedule an IB in the DMA ring. + */ +static void sdma_v5_2_ring_emit_ib(struct amdgpu_ring *ring, + struct amdgpu_job *job, + struct amdgpu_ib *ib, + uint32_t flags) +{ + unsigned vmid = AMDGPU_JOB_GET_VMID(job); + uint64_t csa_mc_addr = amdgpu_sdma_get_csa_mc_addr(ring, vmid); + + /* An IB packet must end on a 8 DW boundary--the next dword + * must be on a 8-dword boundary. Our IB packet below is 6 + * dwords long, thus add x number of NOPs, such that, in + * modular arithmetic, + * wptr + 6 + x = 8k, k >= 0, which in C is, + * (wptr + 6 + x) % 8 = 0. + * The expression below, is a solution of x. + */ + sdma_v5_2_ring_insert_nop(ring, (2 - lower_32_bits(ring->wptr)) & 7); + + amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_INDIRECT) | + SDMA_PKT_INDIRECT_HEADER_VMID(vmid & 0xf)); + /* base must be 32 byte aligned */ + amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr) & 0xffffffe0); + amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr)); + amdgpu_ring_write(ring, ib->length_dw); + amdgpu_ring_write(ring, lower_32_bits(csa_mc_addr)); + amdgpu_ring_write(ring, upper_32_bits(csa_mc_addr)); +} + +/** + * sdma_v5_2_ring_emit_hdp_flush - emit an hdp flush on the DMA ring + * + * @ring: amdgpu ring pointer + * + * Emit an hdp flush packet on the requested DMA ring. + */ +static void sdma_v5_2_ring_emit_hdp_flush(struct amdgpu_ring *ring) +{ + struct amdgpu_device *adev = ring->adev; + u32 ref_and_mask = 0; + const struct nbio_hdp_flush_reg *nbio_hf_reg = adev->nbio.hdp_flush_reg; + + ref_and_mask = nbio_hf_reg->ref_and_mask_sdma0 << ring->me; + + amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) | + SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(1) | + SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3)); /* == */ + amdgpu_ring_write(ring, (adev->nbio.funcs->get_hdp_flush_done_offset(adev)) << 2); + amdgpu_ring_write(ring, (adev->nbio.funcs->get_hdp_flush_req_offset(adev)) << 2); + amdgpu_ring_write(ring, ref_and_mask); /* reference */ + amdgpu_ring_write(ring, ref_and_mask); /* mask */ + amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) | + SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10)); /* retry count, poll interval */ +} + +/** + * sdma_v5_2_ring_emit_fence - emit a fence on the DMA ring + * + * @ring: amdgpu ring pointer + * @fence: amdgpu fence object + * + * Add a DMA fence packet to the ring to write + * the fence seq number and DMA trap packet to generate + * an interrupt if needed. + */ +static void sdma_v5_2_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq, + unsigned flags) +{ + bool write64bit = flags & AMDGPU_FENCE_FLAG_64BIT; + /* write the fence */ + amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE) | + SDMA_PKT_FENCE_HEADER_MTYPE(0x3)); /* Ucached(UC) */ + /* zero in first two bits */ + BUG_ON(addr & 0x3); + amdgpu_ring_write(ring, lower_32_bits(addr)); + amdgpu_ring_write(ring, upper_32_bits(addr)); + amdgpu_ring_write(ring, lower_32_bits(seq)); + + /* optionally write high bits as well */ + if (write64bit) { + addr += 4; + amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE) | + SDMA_PKT_FENCE_HEADER_MTYPE(0x3)); + /* zero in first two bits */ + BUG_ON(addr & 0x3); + amdgpu_ring_write(ring, lower_32_bits(addr)); + amdgpu_ring_write(ring, upper_32_bits(addr)); + amdgpu_ring_write(ring, upper_32_bits(seq)); + } + + if (flags & AMDGPU_FENCE_FLAG_INT) { + /* generate an interrupt */ + amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_TRAP)); + amdgpu_ring_write(ring, SDMA_PKT_TRAP_INT_CONTEXT_INT_CONTEXT(0)); + } +} + + +/** + * sdma_v5_2_gfx_stop - stop the gfx async dma engines + * + * @adev: amdgpu_device pointer + * + * Stop the gfx async dma ring buffers. + */ +static void sdma_v5_2_gfx_stop(struct amdgpu_device *adev) +{ + struct amdgpu_ring *sdma0 = &adev->sdma.instance[0].ring; + struct amdgpu_ring *sdma1 = &adev->sdma.instance[1].ring; + struct amdgpu_ring *sdma2 = &adev->sdma.instance[2].ring; + struct amdgpu_ring *sdma3 = &adev->sdma.instance[3].ring; + u32 rb_cntl, ib_cntl; + int i; + + if ((adev->mman.buffer_funcs_ring == sdma0) || + (adev->mman.buffer_funcs_ring == sdma1) || + (adev->mman.buffer_funcs_ring == sdma2) || + (adev->mman.buffer_funcs_ring == sdma3)) + amdgpu_ttm_set_buffer_funcs_status(adev, false); + + for (i = 0; i < adev->sdma.num_instances; i++) { + rb_cntl = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL)); + rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 0); + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL), rb_cntl); + ib_cntl = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL)); + ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 0); + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL), ib_cntl); + } + + sdma0->sched.ready = false; + sdma1->sched.ready = false; + sdma2->sched.ready = false; + sdma3->sched.ready = false; +} + +/** + * sdma_v5_2_rlc_stop - stop the compute async dma engines + * + * @adev: amdgpu_device pointer + * + * Stop the compute async dma queues. + */ +static void sdma_v5_2_rlc_stop(struct amdgpu_device *adev) +{ + /* XXX todo */ +} + +/** + * sdma_v_0_ctx_switch_enable - stop the async dma engines context switch + * + * @adev: amdgpu_device pointer + * @enable: enable/disable the DMA MEs context switch. + * + * Halt or unhalt the async dma engines context switch. + */ +static void sdma_v5_2_ctx_switch_enable(struct amdgpu_device *adev, bool enable) +{ + u32 f32_cntl, phase_quantum = 0; + int i; + + if (amdgpu_sdma_phase_quantum) { + unsigned value = amdgpu_sdma_phase_quantum; + unsigned unit = 0; + + while (value > (SDMA0_PHASE0_QUANTUM__VALUE_MASK >> + SDMA0_PHASE0_QUANTUM__VALUE__SHIFT)) { + value = (value + 1) >> 1; + unit++; + } + if (unit > (SDMA0_PHASE0_QUANTUM__UNIT_MASK >> + SDMA0_PHASE0_QUANTUM__UNIT__SHIFT)) { + value = (SDMA0_PHASE0_QUANTUM__VALUE_MASK >> + SDMA0_PHASE0_QUANTUM__VALUE__SHIFT); + unit = (SDMA0_PHASE0_QUANTUM__UNIT_MASK >> + SDMA0_PHASE0_QUANTUM__UNIT__SHIFT); + WARN_ONCE(1, + "clamping sdma_phase_quantum to %uK clock cycles\n", + value << unit); + } + phase_quantum = + value << SDMA0_PHASE0_QUANTUM__VALUE__SHIFT | + unit << SDMA0_PHASE0_QUANTUM__UNIT__SHIFT; + } + + for (i = 0; i < adev->sdma.num_instances; i++) { + f32_cntl = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CNTL)); + f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_CNTL, + AUTO_CTXSW_ENABLE, enable ? 1 : 0); + if (enable && amdgpu_sdma_phase_quantum) { + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_PHASE0_QUANTUM), + phase_quantum); + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_PHASE1_QUANTUM), + phase_quantum); + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_PHASE2_QUANTUM), + phase_quantum); + } + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CNTL), f32_cntl); + } + +} + +/** + * sdma_v5_2_enable - stop the async dma engines + * + * @adev: amdgpu_device pointer + * @enable: enable/disable the DMA MEs. + * + * Halt or unhalt the async dma engines. + */ +static void sdma_v5_2_enable(struct amdgpu_device *adev, bool enable) +{ + u32 f32_cntl; + int i; + + if (enable == false) { + sdma_v5_2_gfx_stop(adev); + sdma_v5_2_rlc_stop(adev); + } + + for (i = 0; i < adev->sdma.num_instances; i++) { + f32_cntl = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_F32_CNTL)); + f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_F32_CNTL, HALT, enable ? 0 : 1); + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_F32_CNTL), f32_cntl); + } +} + +/** + * sdma_v5_2_gfx_resume - setup and start the async dma engines + * + * @adev: amdgpu_device pointer + * + * Set up the gfx DMA ring buffers and enable them. + * Returns 0 for success, error for failure. + */ +static int sdma_v5_2_gfx_resume(struct amdgpu_device *adev) +{ + struct amdgpu_ring *ring; + u32 rb_cntl, ib_cntl; + u32 rb_bufsz; + u32 wb_offset; + u32 doorbell; + u32 doorbell_offset; + u32 temp; + u32 wptr_poll_cntl; + u64 wptr_gpu_addr; + int i, r; + + for (i = 0; i < adev->sdma.num_instances; i++) { + ring = &adev->sdma.instance[i].ring; + wb_offset = (ring->rptr_offs * 4); + + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_SEM_WAIT_FAIL_TIMER_CNTL), 0); + + /* Set ring buffer size in dwords */ + rb_bufsz = order_base_2(ring->ring_size / 4); + rb_cntl = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL)); + rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SIZE, rb_bufsz); +#ifdef __BIG_ENDIAN + rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SWAP_ENABLE, 1); + rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, + RPTR_WRITEBACK_SWAP_ENABLE, 1); +#endif + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL), rb_cntl); + + /* Initialize the ring buffer's read and write pointers */ + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR), 0); + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR_HI), 0); + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR), 0); + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_HI), 0); + + /* setup the wptr shadow polling */ + wptr_gpu_addr = adev->wb.gpu_addr + (ring->wptr_offs * 4); + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_POLL_ADDR_LO), + lower_32_bits(wptr_gpu_addr)); + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_POLL_ADDR_HI), + upper_32_bits(wptr_gpu_addr)); + wptr_poll_cntl = RREG32(sdma_v5_2_get_reg_offset(adev, i, + mmSDMA0_GFX_RB_WPTR_POLL_CNTL)); + wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl, + SDMA0_GFX_RB_WPTR_POLL_CNTL, + F32_POLL_ENABLE, 1); + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_POLL_CNTL), + wptr_poll_cntl); + + /* set the wb address whether it's enabled or not */ + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR_ADDR_HI), + upper_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFF); + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR_ADDR_LO), + lower_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFC); + + rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RPTR_WRITEBACK_ENABLE, 1); + + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_BASE), ring->gpu_addr >> 8); + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_BASE_HI), ring->gpu_addr >> 40); + + ring->wptr = 0; + + /* before programing wptr to a less value, need set minor_ptr_update first */ + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_MINOR_PTR_UPDATE), 1); + + if (!amdgpu_sriov_vf(adev)) { /* only bare-metal use register write for wptr */ + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR), lower_32_bits(ring->wptr) << 2); + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_HI), upper_32_bits(ring->wptr) << 2); + } + + doorbell = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL)); + doorbell_offset = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL_OFFSET)); + + if (ring->use_doorbell) { + doorbell = REG_SET_FIELD(doorbell, SDMA0_GFX_DOORBELL, ENABLE, 1); + doorbell_offset = REG_SET_FIELD(doorbell_offset, SDMA0_GFX_DOORBELL_OFFSET, + OFFSET, ring->doorbell_index); + } else { + doorbell = REG_SET_FIELD(doorbell, SDMA0_GFX_DOORBELL, ENABLE, 0); + } + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL), doorbell); + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL_OFFSET), doorbell_offset); + + adev->nbio.funcs->sdma_doorbell_range(adev, i, ring->use_doorbell, + ring->doorbell_index, + adev->doorbell_index.sdma_doorbell_range); + + if (amdgpu_sriov_vf(adev)) + sdma_v5_2_ring_set_wptr(ring); + + /* set minor_ptr_update to 0 after wptr programed */ + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_MINOR_PTR_UPDATE), 0); + + /* set utc l1 enable flag always to 1 */ + temp = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CNTL)); + temp = REG_SET_FIELD(temp, SDMA0_CNTL, UTC_L1_ENABLE, 1); + + /* enable MCBP */ + temp = REG_SET_FIELD(temp, SDMA0_CNTL, MIDCMD_PREEMPT_ENABLE, 1); + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CNTL), temp); + + /* Set up RESP_MODE to non-copy addresses */ + temp = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_UTCL1_CNTL)); + temp = REG_SET_FIELD(temp, SDMA0_UTCL1_CNTL, RESP_MODE, 3); + temp = REG_SET_FIELD(temp, SDMA0_UTCL1_CNTL, REDO_DELAY, 9); + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_UTCL1_CNTL), temp); + + /* program default cache read and write policy */ + temp = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_UTCL1_PAGE)); + /* clean read policy and write policy bits */ + temp &= 0xFF0FFF; + temp |= ((CACHE_READ_POLICY_L2__DEFAULT << 12) | + (CACHE_WRITE_POLICY_L2__DEFAULT << 14) | + 0x01000000); + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_UTCL1_PAGE), temp); + + if (!amdgpu_sriov_vf(adev)) { + /* unhalt engine */ + temp = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_F32_CNTL)); + temp = REG_SET_FIELD(temp, SDMA0_F32_CNTL, HALT, 0); + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_F32_CNTL), temp); + } + + /* enable DMA RB */ + rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 1); + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL), rb_cntl); + + ib_cntl = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL)); + ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 1); +#ifdef __BIG_ENDIAN + ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_SWAP_ENABLE, 1); +#endif + /* enable DMA IBs */ + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL), ib_cntl); + + ring->sched.ready = true; + + if (amdgpu_sriov_vf(adev)) { /* bare-metal sequence doesn't need below to lines */ + sdma_v5_2_ctx_switch_enable(adev, true); + sdma_v5_2_enable(adev, true); + } + + r = amdgpu_ring_test_ring(ring); + if (r) { + ring->sched.ready = false; + return r; + } + + if (adev->mman.buffer_funcs_ring == ring) + amdgpu_ttm_set_buffer_funcs_status(adev, true); + } + + return 0; +} + +/** + * sdma_v5_2_rlc_resume - setup and start the async dma engines + * + * @adev: amdgpu_device pointer + * + * Set up the compute DMA queues and enable them. + * Returns 0 for success, error for failure. + */ +static int sdma_v5_2_rlc_resume(struct amdgpu_device *adev) +{ + return 0; +} + +/** + * sdma_v5_2_load_microcode - load the sDMA ME ucode + * + * @adev: amdgpu_device pointer + * + * Loads the sDMA0/1/2/3 ucode. + * Returns 0 for success, -EINVAL if the ucode is not available. + */ +static int sdma_v5_2_load_microcode(struct amdgpu_device *adev) +{ + const struct sdma_firmware_header_v1_0 *hdr; + const __le32 *fw_data; + u32 fw_size; + int i, j; + + /* halt the MEs */ + sdma_v5_2_enable(adev, false); + + for (i = 0; i < adev->sdma.num_instances; i++) { + if (!adev->sdma.instance[i].fw) + return -EINVAL; + + hdr = (const struct sdma_firmware_header_v1_0 *)adev->sdma.instance[i].fw->data; + amdgpu_ucode_print_sdma_hdr(&hdr->header); + fw_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4; + + fw_data = (const __le32 *) + (adev->sdma.instance[i].fw->data + + le32_to_cpu(hdr->header.ucode_array_offset_bytes)); + + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_UCODE_ADDR), 0); + + for (j = 0; j < fw_size; j++) { + if (amdgpu_emu_mode == 1 && j % 500 == 0) + msleep(1); + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_UCODE_DATA), le32_to_cpup(fw_data++)); + } + + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_UCODE_ADDR), adev->sdma.instance[i].fw_version); + } + + return 0; +} + +/** + * sdma_v5_2_start - setup and start the async dma engines + * + * @adev: amdgpu_device pointer + * + * Set up the DMA engines and enable them. + * Returns 0 for success, error for failure. + */ +static int sdma_v5_2_start(struct amdgpu_device *adev) +{ + int r = 0; + + if (amdgpu_sriov_vf(adev)) { + sdma_v5_2_ctx_switch_enable(adev, false); + sdma_v5_2_enable(adev, false); + + /* set RB registers */ + r = sdma_v5_2_gfx_resume(adev); + return r; + } + + if (adev->firmware.load_type == AMDGPU_FW_LOAD_DIRECT) { + r = sdma_v5_2_load_microcode(adev); + if (r) + return r; + + /* The value of mmSDMA_F32_CNTL is invalid the moment after loading fw */ + if (amdgpu_emu_mode == 1) + msleep(1000); + } + + /* unhalt the MEs */ + sdma_v5_2_enable(adev, true); + /* enable sdma ring preemption */ + sdma_v5_2_ctx_switch_enable(adev, true); + + /* start the gfx rings and rlc compute queues */ + r = sdma_v5_2_gfx_resume(adev); + if (r) + return r; + r = sdma_v5_2_rlc_resume(adev); + + return r; +} + +/** + * sdma_v5_2_ring_test_ring - simple async dma engine test + * + * @ring: amdgpu_ring structure holding ring information + * + * Test the DMA engine by writing using it to write an + * value to memory. + * Returns 0 for success, error for failure. + */ +static int sdma_v5_2_ring_test_ring(struct amdgpu_ring *ring) +{ + struct amdgpu_device *adev = ring->adev; + unsigned i; + unsigned index; + int r; + u32 tmp; + u64 gpu_addr; + + r = amdgpu_device_wb_get(adev, &index); + if (r) { + dev_err(adev->dev, "(%d) failed to allocate wb slot\n", r); + return r; + } + + gpu_addr = adev->wb.gpu_addr + (index * 4); + tmp = 0xCAFEDEAD; + adev->wb.wb[index] = cpu_to_le32(tmp); + + r = amdgpu_ring_alloc(ring, 5); + if (r) { + DRM_ERROR("amdgpu: dma failed to lock ring %d (%d).\n", ring->idx, r); + amdgpu_device_wb_free(adev, index); + return r; + } + + amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) | + SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR)); + amdgpu_ring_write(ring, lower_32_bits(gpu_addr)); + amdgpu_ring_write(ring, upper_32_bits(gpu_addr)); + amdgpu_ring_write(ring, SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(0)); + amdgpu_ring_write(ring, 0xDEADBEEF); + amdgpu_ring_commit(ring); + + for (i = 0; i < adev->usec_timeout; i++) { + tmp = le32_to_cpu(adev->wb.wb[index]); + if (tmp == 0xDEADBEEF) + break; + if (amdgpu_emu_mode == 1) + msleep(1); + else + udelay(1); + } + + if (i >= adev->usec_timeout) + r = -ETIMEDOUT; + + amdgpu_device_wb_free(adev, index); + + return r; +} + +/** + * sdma_v5_2_ring_test_ib - test an IB on the DMA engine + * + * @ring: amdgpu_ring structure holding ring information + * + * Test a simple IB in the DMA ring. + * Returns 0 on success, error on failure. + */ +static int sdma_v5_2_ring_test_ib(struct amdgpu_ring *ring, long timeout) +{ + struct amdgpu_device *adev = ring->adev; + struct amdgpu_ib ib; + struct dma_fence *f = NULL; + unsigned index; + long r; + u32 tmp = 0; + u64 gpu_addr; + + r = amdgpu_device_wb_get(adev, &index); + if (r) { + dev_err(adev->dev, "(%ld) failed to allocate wb slot\n", r); + return r; + } + + gpu_addr = adev->wb.gpu_addr + (index * 4); + tmp = 0xCAFEDEAD; + adev->wb.wb[index] = cpu_to_le32(tmp); + memset(&ib, 0, sizeof(ib)); + r = amdgpu_ib_get(adev, NULL, 256, AMDGPU_IB_POOL_DIRECT, &ib); + if (r) { + DRM_ERROR("amdgpu: failed to get ib (%ld).\n", r); + goto err0; + } + + ib.ptr[0] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) | + SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR); + ib.ptr[1] = lower_32_bits(gpu_addr); + ib.ptr[2] = upper_32_bits(gpu_addr); + ib.ptr[3] = SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(0); + ib.ptr[4] = 0xDEADBEEF; + ib.ptr[5] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP); + ib.ptr[6] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP); + ib.ptr[7] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP); + ib.length_dw = 8; + + r = amdgpu_ib_schedule(ring, 1, &ib, NULL, &f); + if (r) + goto err1; + + r = dma_fence_wait_timeout(f, false, timeout); + if (r == 0) { + DRM_ERROR("amdgpu: IB test timed out\n"); + r = -ETIMEDOUT; + goto err1; + } else if (r < 0) { + DRM_ERROR("amdgpu: fence wait failed (%ld).\n", r); + goto err1; + } + tmp = le32_to_cpu(adev->wb.wb[index]); + if (tmp == 0xDEADBEEF) + r = 0; + else + r = -EINVAL; + +err1: + amdgpu_ib_free(adev, &ib, NULL); + dma_fence_put(f); +err0: + amdgpu_device_wb_free(adev, index); + return r; +} + + +/** + * sdma_v5_2_vm_copy_pte - update PTEs by copying them from the GART + * + * @ib: indirect buffer to fill with commands + * @pe: addr of the page entry + * @src: src addr to copy from + * @count: number of page entries to update + * + * Update PTEs by copying them from the GART using sDMA. + */ +static void sdma_v5_2_vm_copy_pte(struct amdgpu_ib *ib, + uint64_t pe, uint64_t src, + unsigned count) +{ + unsigned bytes = count * 8; + + ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_COPY) | + SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR); + ib->ptr[ib->length_dw++] = bytes - 1; + ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */ + ib->ptr[ib->length_dw++] = lower_32_bits(src); + ib->ptr[ib->length_dw++] = upper_32_bits(src); + ib->ptr[ib->length_dw++] = lower_32_bits(pe); + ib->ptr[ib->length_dw++] = upper_32_bits(pe); + +} + +/** + * sdma_v5_2_vm_write_pte - update PTEs by writing them manually + * + * @ib: indirect buffer to fill with commands + * @pe: addr of the page entry + * @addr: dst addr to write into pe + * @count: number of page entries to update + * @incr: increase next addr by incr bytes + * @flags: access flags + * + * Update PTEs by writing them manually using sDMA. + */ +static void sdma_v5_2_vm_write_pte(struct amdgpu_ib *ib, uint64_t pe, + uint64_t value, unsigned count, + uint32_t incr) +{ + unsigned ndw = count * 2; + + ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) | + SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR); + ib->ptr[ib->length_dw++] = lower_32_bits(pe); + ib->ptr[ib->length_dw++] = upper_32_bits(pe); + ib->ptr[ib->length_dw++] = ndw - 1; + for (; ndw > 0; ndw -= 2) { + ib->ptr[ib->length_dw++] = lower_32_bits(value); + ib->ptr[ib->length_dw++] = upper_32_bits(value); + value += incr; + } +} + +/** + * sdma_v5_2_vm_set_pte_pde - update the page tables using sDMA + * + * @ib: indirect buffer to fill with commands + * @pe: addr of the page entry + * @addr: dst addr to write into pe + * @count: number of page entries to update + * @incr: increase next addr by incr bytes + * @flags: access flags + * + * Update the page tables using sDMA. + */ +static void sdma_v5_2_vm_set_pte_pde(struct amdgpu_ib *ib, + uint64_t pe, + uint64_t addr, unsigned count, + uint32_t incr, uint64_t flags) +{ + /* for physically contiguous pages (vram) */ + ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_PTEPDE); + ib->ptr[ib->length_dw++] = lower_32_bits(pe); /* dst addr */ + ib->ptr[ib->length_dw++] = upper_32_bits(pe); + ib->ptr[ib->length_dw++] = lower_32_bits(flags); /* mask */ + ib->ptr[ib->length_dw++] = upper_32_bits(flags); + ib->ptr[ib->length_dw++] = lower_32_bits(addr); /* value */ + ib->ptr[ib->length_dw++] = upper_32_bits(addr); + ib->ptr[ib->length_dw++] = incr; /* increment size */ + ib->ptr[ib->length_dw++] = 0; + ib->ptr[ib->length_dw++] = count - 1; /* number of entries */ +} + +/** + * sdma_v5_2_ring_pad_ib - pad the IB + * + * @ib: indirect buffer to fill with padding + * + * Pad the IB with NOPs to a boundary multiple of 8. + */ +static void sdma_v5_2_ring_pad_ib(struct amdgpu_ring *ring, struct amdgpu_ib *ib) +{ + struct amdgpu_sdma_instance *sdma = amdgpu_sdma_get_instance_from_ring(ring); + u32 pad_count; + int i; + + pad_count = (-ib->length_dw) & 0x7; + for (i = 0; i < pad_count; i++) + if (sdma && sdma->burst_nop && (i == 0)) + ib->ptr[ib->length_dw++] = + SDMA_PKT_HEADER_OP(SDMA_OP_NOP) | + SDMA_PKT_NOP_HEADER_COUNT(pad_count - 1); + else + ib->ptr[ib->length_dw++] = + SDMA_PKT_HEADER_OP(SDMA_OP_NOP); +} + + +/** + * sdma_v5_2_ring_emit_pipeline_sync - sync the pipeline + * + * @ring: amdgpu_ring pointer + * + * Make sure all previous operations are completed (CIK). + */ +static void sdma_v5_2_ring_emit_pipeline_sync(struct amdgpu_ring *ring) +{ + uint32_t seq = ring->fence_drv.sync_seq; + uint64_t addr = ring->fence_drv.gpu_addr; + + /* wait for idle */ + amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) | + SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) | + SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3) | /* equal */ + SDMA_PKT_POLL_REGMEM_HEADER_MEM_POLL(1)); + amdgpu_ring_write(ring, addr & 0xfffffffc); + amdgpu_ring_write(ring, upper_32_bits(addr) & 0xffffffff); + amdgpu_ring_write(ring, seq); /* reference */ + amdgpu_ring_write(ring, 0xffffffff); /* mask */ + amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) | + SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(4)); /* retry count, poll interval */ +} + + +/** + * sdma_v5_2_ring_emit_vm_flush - vm flush using sDMA + * + * @ring: amdgpu_ring pointer + * @vm: amdgpu_vm pointer + * + * Update the page table base and flush the VM TLB + * using sDMA. + */ +static void sdma_v5_2_ring_emit_vm_flush(struct amdgpu_ring *ring, + unsigned vmid, uint64_t pd_addr) +{ + amdgpu_gmc_emit_flush_gpu_tlb(ring, vmid, pd_addr); +} + +static void sdma_v5_2_ring_emit_wreg(struct amdgpu_ring *ring, + uint32_t reg, uint32_t val) +{ + amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_SRBM_WRITE) | + SDMA_PKT_SRBM_WRITE_HEADER_BYTE_EN(0xf)); + amdgpu_ring_write(ring, reg); + amdgpu_ring_write(ring, val); +} + +static void sdma_v5_2_ring_emit_reg_wait(struct amdgpu_ring *ring, uint32_t reg, + uint32_t val, uint32_t mask) +{ + amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) | + SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) | + SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3)); /* equal */ + amdgpu_ring_write(ring, reg << 2); + amdgpu_ring_write(ring, 0); + amdgpu_ring_write(ring, val); /* reference */ + amdgpu_ring_write(ring, mask); /* mask */ + amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) | + SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10)); +} + +static void sdma_v5_2_ring_emit_reg_write_reg_wait(struct amdgpu_ring *ring, + uint32_t reg0, uint32_t reg1, + uint32_t ref, uint32_t mask) +{ + amdgpu_ring_emit_wreg(ring, reg0, ref); + /* wait for a cycle to reset vm_inv_eng*_ack */ + amdgpu_ring_emit_reg_wait(ring, reg0, 0, 0); + amdgpu_ring_emit_reg_wait(ring, reg1, mask, mask); +} + +static int sdma_v5_2_early_init(void *handle) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + switch (adev->asic_type) { + case CHIP_SIENNA_CICHLID: + adev->sdma.num_instances = 4; + break; + case CHIP_NAVY_FLOUNDER: + adev->sdma.num_instances = 2; + break; + default: + break; + } + + sdma_v5_2_set_ring_funcs(adev); + sdma_v5_2_set_buffer_funcs(adev); + sdma_v5_2_set_vm_pte_funcs(adev); + sdma_v5_2_set_irq_funcs(adev); + + return 0; +} + +static unsigned sdma_v5_2_seq_to_irq_id(int seq_num) +{ + switch (seq_num) { + case 0: + return SOC15_IH_CLIENTID_SDMA0; + case 1: + return SOC15_IH_CLIENTID_SDMA1; + case 2: + return SOC15_IH_CLIENTID_SDMA2; + case 3: + return SOC15_IH_CLIENTID_SDMA3_Sienna_Cichlid; + default: + break; + } + return -EINVAL; +} + +static unsigned sdma_v5_2_seq_to_trap_id(int seq_num) +{ + switch (seq_num) { + case 0: + return SDMA0_5_0__SRCID__SDMA_TRAP; + case 1: + return SDMA1_5_0__SRCID__SDMA_TRAP; + case 2: + return SDMA2_5_0__SRCID__SDMA_TRAP; + case 3: + return SDMA3_5_0__SRCID__SDMA_TRAP; + default: + break; + } + return -EINVAL; +} + +static int sdma_v5_2_sw_init(void *handle) +{ + struct amdgpu_ring *ring; + int r, i; + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + /* SDMA trap event */ + for (i = 0; i < adev->sdma.num_instances; i++) { + r = amdgpu_irq_add_id(adev, sdma_v5_2_seq_to_irq_id(i), + sdma_v5_2_seq_to_trap_id(i), + &adev->sdma.trap_irq); + if (r) + return r; + } + + r = sdma_v5_2_init_microcode(adev); + if (r) { + DRM_ERROR("Failed to load sdma firmware!\n"); + return r; + } + + for (i = 0; i < adev->sdma.num_instances; i++) { + ring = &adev->sdma.instance[i].ring; + ring->ring_obj = NULL; + ring->use_doorbell = true; + ring->me = i; + + DRM_INFO("use_doorbell being set to: [%s]\n", + ring->use_doorbell?"true":"false"); + + ring->doorbell_index = + (adev->doorbell_index.sdma_engine[i] << 1); //get DWORD offset + + sprintf(ring->name, "sdma%d", i); + r = amdgpu_ring_init(adev, ring, 1024, + &adev->sdma.trap_irq, + AMDGPU_SDMA_IRQ_INSTANCE0 + i, + AMDGPU_RING_PRIO_DEFAULT); + if (r) + return r; + } + + return r; +} + +static int sdma_v5_2_sw_fini(void *handle) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + int i; + + for (i = 0; i < adev->sdma.num_instances; i++) + amdgpu_ring_fini(&adev->sdma.instance[i].ring); + + sdma_v5_2_destroy_inst_ctx(adev); + + return 0; +} + +static int sdma_v5_2_hw_init(void *handle) +{ + int r; + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + sdma_v5_2_init_golden_registers(adev); + + r = sdma_v5_2_start(adev); + + return r; +} + +static int sdma_v5_2_hw_fini(void *handle) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + if (amdgpu_sriov_vf(adev)) + return 0; + + sdma_v5_2_ctx_switch_enable(adev, false); + sdma_v5_2_enable(adev, false); + + return 0; +} + +static int sdma_v5_2_suspend(void *handle) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + return sdma_v5_2_hw_fini(adev); +} + +static int sdma_v5_2_resume(void *handle) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + return sdma_v5_2_hw_init(adev); +} + +static bool sdma_v5_2_is_idle(void *handle) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + u32 i; + + for (i = 0; i < adev->sdma.num_instances; i++) { + u32 tmp = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_STATUS_REG)); + + if (!(tmp & SDMA0_STATUS_REG__IDLE_MASK)) + return false; + } + + return true; +} + +static int sdma_v5_2_wait_for_idle(void *handle) +{ + unsigned i; + u32 sdma0, sdma1, sdma2, sdma3; + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + for (i = 0; i < adev->usec_timeout; i++) { + sdma0 = RREG32(sdma_v5_2_get_reg_offset(adev, 0, mmSDMA0_STATUS_REG)); + sdma1 = RREG32(sdma_v5_2_get_reg_offset(adev, 1, mmSDMA0_STATUS_REG)); + sdma2 = RREG32(sdma_v5_2_get_reg_offset(adev, 2, mmSDMA0_STATUS_REG)); + sdma3 = RREG32(sdma_v5_2_get_reg_offset(adev, 3, mmSDMA0_STATUS_REG)); + + if (sdma0 & sdma1 & sdma2 & sdma3 & SDMA0_STATUS_REG__IDLE_MASK) + return 0; + udelay(1); + } + return -ETIMEDOUT; +} + +static int sdma_v5_2_soft_reset(void *handle) +{ + /* todo */ + + return 0; +} + +static int sdma_v5_2_ring_preempt_ib(struct amdgpu_ring *ring) +{ + int i, r = 0; + struct amdgpu_device *adev = ring->adev; + u32 index = 0; + u64 sdma_gfx_preempt; + + amdgpu_sdma_get_index_from_ring(ring, &index); + sdma_gfx_preempt = + sdma_v5_2_get_reg_offset(adev, index, mmSDMA0_GFX_PREEMPT); + + /* assert preemption condition */ + amdgpu_ring_set_preempt_cond_exec(ring, false); + + /* emit the trailing fence */ + ring->trail_seq += 1; + amdgpu_ring_alloc(ring, 10); + sdma_v5_2_ring_emit_fence(ring, ring->trail_fence_gpu_addr, + ring->trail_seq, 0); + amdgpu_ring_commit(ring); + + /* assert IB preemption */ + WREG32(sdma_gfx_preempt, 1); + + /* poll the trailing fence */ + for (i = 0; i < adev->usec_timeout; i++) { + if (ring->trail_seq == + le32_to_cpu(*(ring->trail_fence_cpu_addr))) + break; + udelay(1); + } + + if (i >= adev->usec_timeout) { + r = -EINVAL; + DRM_ERROR("ring %d failed to be preempted\n", ring->idx); + } + + /* deassert IB preemption */ + WREG32(sdma_gfx_preempt, 0); + + /* deassert the preemption condition */ + amdgpu_ring_set_preempt_cond_exec(ring, true); + return r; +} + +static int sdma_v5_2_set_trap_irq_state(struct amdgpu_device *adev, + struct amdgpu_irq_src *source, + unsigned type, + enum amdgpu_interrupt_state state) +{ + u32 sdma_cntl; + + u32 reg_offset = sdma_v5_2_get_reg_offset(adev, type, mmSDMA0_CNTL); + + sdma_cntl = RREG32(reg_offset); + sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE, + state == AMDGPU_IRQ_STATE_ENABLE ? 1 : 0); + WREG32(reg_offset, sdma_cntl); + + return 0; +} + +static int sdma_v5_2_process_trap_irq(struct amdgpu_device *adev, + struct amdgpu_irq_src *source, + struct amdgpu_iv_entry *entry) +{ + DRM_DEBUG("IH: SDMA trap\n"); + switch (entry->client_id) { + case SOC15_IH_CLIENTID_SDMA0: + switch (entry->ring_id) { + case 0: + amdgpu_fence_process(&adev->sdma.instance[0].ring); + break; + case 1: + /* XXX compute */ + break; + case 2: + /* XXX compute */ + break; + case 3: + /* XXX page queue*/ + break; + } + break; + case SOC15_IH_CLIENTID_SDMA1: + switch (entry->ring_id) { + case 0: + amdgpu_fence_process(&adev->sdma.instance[1].ring); + break; + case 1: + /* XXX compute */ + break; + case 2: + /* XXX compute */ + break; + case 3: + /* XXX page queue*/ + break; + } + break; + case SOC15_IH_CLIENTID_SDMA2: + switch (entry->ring_id) { + case 0: + amdgpu_fence_process(&adev->sdma.instance[2].ring); + break; + case 1: + /* XXX compute */ + break; + case 2: + /* XXX compute */ + break; + case 3: + /* XXX page queue*/ + break; + } + break; + case SOC15_IH_CLIENTID_SDMA3_Sienna_Cichlid: + switch (entry->ring_id) { + case 0: + amdgpu_fence_process(&adev->sdma.instance[3].ring); + break; + case 1: + /* XXX compute */ + break; + case 2: + /* XXX compute */ + break; + case 3: + /* XXX page queue*/ + break; + } + break; + } + return 0; +} + +static int sdma_v5_2_process_illegal_inst_irq(struct amdgpu_device *adev, + struct amdgpu_irq_src *source, + struct amdgpu_iv_entry *entry) +{ + return 0; +} + +static void sdma_v5_2_update_medium_grain_clock_gating(struct amdgpu_device *adev, + bool enable) +{ + uint32_t data, def; + int i; + + for (i = 0; i < adev->sdma.num_instances; i++) { + if (enable && (adev->cg_flags & AMD_CG_SUPPORT_SDMA_MGCG)) { + /* Enable sdma clock gating */ + def = data = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CLK_CTRL)); + data &= ~(SDMA0_CLK_CTRL__SOFT_OVERRIDE4_MASK | + SDMA0_CLK_CTRL__SOFT_OVERRIDE3_MASK | + SDMA0_CLK_CTRL__SOFT_OVERRIDE2_MASK | + SDMA0_CLK_CTRL__SOFT_OVERRIDE1_MASK | + SDMA0_CLK_CTRL__SOFT_OVERRIDE0_MASK | + SDMA0_CLK_CTRL__SOFT_OVERRIDER_REG_MASK); + if (def != data) + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CLK_CTRL), data); + } else { + /* Disable sdma clock gating */ + def = data = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CLK_CTRL)); + data |= (SDMA0_CLK_CTRL__SOFT_OVERRIDE4_MASK | + SDMA0_CLK_CTRL__SOFT_OVERRIDE3_MASK | + SDMA0_CLK_CTRL__SOFT_OVERRIDE2_MASK | + SDMA0_CLK_CTRL__SOFT_OVERRIDE1_MASK | + SDMA0_CLK_CTRL__SOFT_OVERRIDE0_MASK | + SDMA0_CLK_CTRL__SOFT_OVERRIDER_REG_MASK); + if (def != data) + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CLK_CTRL), data); + } + } +} + +static void sdma_v5_2_update_medium_grain_light_sleep(struct amdgpu_device *adev, + bool enable) +{ + uint32_t data, def; + int i; + + for (i = 0; i < adev->sdma.num_instances; i++) { + if (enable && (adev->cg_flags & AMD_CG_SUPPORT_SDMA_LS)) { + /* Enable sdma mem light sleep */ + def = data = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_POWER_CNTL)); + data |= SDMA0_POWER_CNTL__MEM_POWER_OVERRIDE_MASK; + if (def != data) + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_POWER_CNTL), data); + + } else { + /* Disable sdma mem light sleep */ + def = data = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_POWER_CNTL)); + data &= ~SDMA0_POWER_CNTL__MEM_POWER_OVERRIDE_MASK; + if (def != data) + WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_POWER_CNTL), data); + + } + } +} + +static int sdma_v5_2_set_clockgating_state(void *handle, + enum amd_clockgating_state state) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + if (amdgpu_sriov_vf(adev)) + return 0; + + switch (adev->asic_type) { + case CHIP_SIENNA_CICHLID: + case CHIP_NAVY_FLOUNDER: + sdma_v5_2_update_medium_grain_clock_gating(adev, + state == AMD_CG_STATE_GATE ? true : false); + sdma_v5_2_update_medium_grain_light_sleep(adev, + state == AMD_CG_STATE_GATE ? true : false); + break; + default: + break; + } + + return 0; +} + +static int sdma_v5_2_set_powergating_state(void *handle, + enum amd_powergating_state state) +{ + return 0; +} + +static void sdma_v5_2_get_clockgating_state(void *handle, u32 *flags) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + int data; + + if (amdgpu_sriov_vf(adev)) + *flags = 0; + + /* AMD_CG_SUPPORT_SDMA_LS */ + data = RREG32_KIQ(sdma_v5_2_get_reg_offset(adev, 0, mmSDMA0_POWER_CNTL)); + if (data & SDMA0_POWER_CNTL__MEM_POWER_OVERRIDE_MASK) + *flags |= AMD_CG_SUPPORT_SDMA_LS; +} + +const struct amd_ip_funcs sdma_v5_2_ip_funcs = { + .name = "sdma_v5_2", + .early_init = sdma_v5_2_early_init, + .late_init = NULL, + .sw_init = sdma_v5_2_sw_init, + .sw_fini = sdma_v5_2_sw_fini, + .hw_init = sdma_v5_2_hw_init, + .hw_fini = sdma_v5_2_hw_fini, + .suspend = sdma_v5_2_suspend, + .resume = sdma_v5_2_resume, + .is_idle = sdma_v5_2_is_idle, + .wait_for_idle = sdma_v5_2_wait_for_idle, + .soft_reset = sdma_v5_2_soft_reset, + .set_clockgating_state = sdma_v5_2_set_clockgating_state, + .set_powergating_state = sdma_v5_2_set_powergating_state, + .get_clockgating_state = sdma_v5_2_get_clockgating_state, +}; + +static const struct amdgpu_ring_funcs sdma_v5_2_ring_funcs = { + .type = AMDGPU_RING_TYPE_SDMA, + .align_mask = 0xf, + .nop = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP), + .support_64bit_ptrs = true, + .vmhub = AMDGPU_GFXHUB_0, + .get_rptr = sdma_v5_2_ring_get_rptr, + .get_wptr = sdma_v5_2_ring_get_wptr, + .set_wptr = sdma_v5_2_ring_set_wptr, + .emit_frame_size = + 5 + /* sdma_v5_2_ring_init_cond_exec */ + 6 + /* sdma_v5_2_ring_emit_hdp_flush */ + 3 + /* hdp_invalidate */ + 6 + /* sdma_v5_2_ring_emit_pipeline_sync */ + /* sdma_v5_2_ring_emit_vm_flush */ + SOC15_FLUSH_GPU_TLB_NUM_WREG * 3 + + SOC15_FLUSH_GPU_TLB_NUM_REG_WAIT * 6 + + 10 + 10 + 10, /* sdma_v5_2_ring_emit_fence x3 for user fence, vm fence */ + .emit_ib_size = 7 + 6, /* sdma_v5_2_ring_emit_ib */ + .emit_ib = sdma_v5_2_ring_emit_ib, + .emit_fence = sdma_v5_2_ring_emit_fence, + .emit_pipeline_sync = sdma_v5_2_ring_emit_pipeline_sync, + .emit_vm_flush = sdma_v5_2_ring_emit_vm_flush, + .emit_hdp_flush = sdma_v5_2_ring_emit_hdp_flush, + .test_ring = sdma_v5_2_ring_test_ring, + .test_ib = sdma_v5_2_ring_test_ib, + .insert_nop = sdma_v5_2_ring_insert_nop, + .pad_ib = sdma_v5_2_ring_pad_ib, + .emit_wreg = sdma_v5_2_ring_emit_wreg, + .emit_reg_wait = sdma_v5_2_ring_emit_reg_wait, + .emit_reg_write_reg_wait = sdma_v5_2_ring_emit_reg_write_reg_wait, + .init_cond_exec = sdma_v5_2_ring_init_cond_exec, + .patch_cond_exec = sdma_v5_2_ring_patch_cond_exec, + .preempt_ib = sdma_v5_2_ring_preempt_ib, +}; + +static void sdma_v5_2_set_ring_funcs(struct amdgpu_device *adev) +{ + int i; + + for (i = 0; i < adev->sdma.num_instances; i++) { + adev->sdma.instance[i].ring.funcs = &sdma_v5_2_ring_funcs; + adev->sdma.instance[i].ring.me = i; + } +} + +static const struct amdgpu_irq_src_funcs sdma_v5_2_trap_irq_funcs = { + .set = sdma_v5_2_set_trap_irq_state, + .process = sdma_v5_2_process_trap_irq, +}; + +static const struct amdgpu_irq_src_funcs sdma_v5_2_illegal_inst_irq_funcs = { + .process = sdma_v5_2_process_illegal_inst_irq, +}; + +static void sdma_v5_2_set_irq_funcs(struct amdgpu_device *adev) +{ + adev->sdma.trap_irq.num_types = AMDGPU_SDMA_IRQ_INSTANCE0 + + adev->sdma.num_instances; + adev->sdma.trap_irq.funcs = &sdma_v5_2_trap_irq_funcs; + adev->sdma.illegal_inst_irq.funcs = &sdma_v5_2_illegal_inst_irq_funcs; +} + +/** + * sdma_v5_2_emit_copy_buffer - copy buffer using the sDMA engine + * + * @ring: amdgpu_ring structure holding ring information + * @src_offset: src GPU address + * @dst_offset: dst GPU address + * @byte_count: number of bytes to xfer + * + * Copy GPU buffers using the DMA engine. + * Used by the amdgpu ttm implementation to move pages if + * registered as the asic copy callback. + */ +static void sdma_v5_2_emit_copy_buffer(struct amdgpu_ib *ib, + uint64_t src_offset, + uint64_t dst_offset, + uint32_t byte_count, + bool tmz) +{ + ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_COPY) | + SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR) | + SDMA_PKT_COPY_LINEAR_HEADER_TMZ(tmz ? 1 : 0); + ib->ptr[ib->length_dw++] = byte_count - 1; + ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */ + ib->ptr[ib->length_dw++] = lower_32_bits(src_offset); + ib->ptr[ib->length_dw++] = upper_32_bits(src_offset); + ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset); + ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset); +} + +/** + * sdma_v5_2_emit_fill_buffer - fill buffer using the sDMA engine + * + * @ring: amdgpu_ring structure holding ring information + * @src_data: value to write to buffer + * @dst_offset: dst GPU address + * @byte_count: number of bytes to xfer + * + * Fill GPU buffers using the DMA engine. + */ +static void sdma_v5_2_emit_fill_buffer(struct amdgpu_ib *ib, + uint32_t src_data, + uint64_t dst_offset, + uint32_t byte_count) +{ + ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_CONST_FILL); + ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset); + ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset); + ib->ptr[ib->length_dw++] = src_data; + ib->ptr[ib->length_dw++] = byte_count - 1; +} + +static const struct amdgpu_buffer_funcs sdma_v5_2_buffer_funcs = { + .copy_max_bytes = 0x400000, + .copy_num_dw = 7, + .emit_copy_buffer = sdma_v5_2_emit_copy_buffer, + + .fill_max_bytes = 0x400000, + .fill_num_dw = 5, + .emit_fill_buffer = sdma_v5_2_emit_fill_buffer, +}; + +static void sdma_v5_2_set_buffer_funcs(struct amdgpu_device *adev) +{ + if (adev->mman.buffer_funcs == NULL) { + adev->mman.buffer_funcs = &sdma_v5_2_buffer_funcs; + adev->mman.buffer_funcs_ring = &adev->sdma.instance[0].ring; + } +} + +static const struct amdgpu_vm_pte_funcs sdma_v5_2_vm_pte_funcs = { + .copy_pte_num_dw = 7, + .copy_pte = sdma_v5_2_vm_copy_pte, + .write_pte = sdma_v5_2_vm_write_pte, + .set_pte_pde = sdma_v5_2_vm_set_pte_pde, +}; + +static void sdma_v5_2_set_vm_pte_funcs(struct amdgpu_device *adev) +{ + unsigned i; + + if (adev->vm_manager.vm_pte_funcs == NULL) { + adev->vm_manager.vm_pte_funcs = &sdma_v5_2_vm_pte_funcs; + for (i = 0; i < adev->sdma.num_instances; i++) { + adev->vm_manager.vm_pte_scheds[i] = + &adev->sdma.instance[i].ring.sched; + } + adev->vm_manager.vm_pte_num_scheds = adev->sdma.num_instances; + } +} + +const struct amdgpu_ip_block_version sdma_v5_2_ip_block = { + .type = AMD_IP_BLOCK_TYPE_SDMA, + .major = 5, + .minor = 2, + .rev = 0, + .funcs = &sdma_v5_2_ip_funcs, +}; |