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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /drivers/gpu/drm/amd/amdgpu/cik_sdma.c | |
parent | Initial commit. (diff) | |
download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip |
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/cik_sdma.c')
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/cik_sdma.c | 1385 |
1 files changed, 1385 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/cik_sdma.c b/drivers/gpu/drm/amd/amdgpu/cik_sdma.c new file mode 100644 index 0000000000..52598fbc9b --- /dev/null +++ b/drivers/gpu/drm/amd/amdgpu/cik_sdma.c @@ -0,0 +1,1385 @@ +/* + * Copyright 2013 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. + * + * Authors: Alex Deucher + */ + +#include <linux/firmware.h> +#include <linux/module.h> + +#include "amdgpu.h" +#include "amdgpu_ucode.h" +#include "amdgpu_trace.h" +#include "cikd.h" +#include "cik.h" + +#include "bif/bif_4_1_d.h" +#include "bif/bif_4_1_sh_mask.h" + +#include "gca/gfx_7_2_d.h" +#include "gca/gfx_7_2_enum.h" +#include "gca/gfx_7_2_sh_mask.h" + +#include "gmc/gmc_7_1_d.h" +#include "gmc/gmc_7_1_sh_mask.h" + +#include "oss/oss_2_0_d.h" +#include "oss/oss_2_0_sh_mask.h" + +static const u32 sdma_offsets[SDMA_MAX_INSTANCE] = +{ + SDMA0_REGISTER_OFFSET, + SDMA1_REGISTER_OFFSET +}; + +static void cik_sdma_set_ring_funcs(struct amdgpu_device *adev); +static void cik_sdma_set_irq_funcs(struct amdgpu_device *adev); +static void cik_sdma_set_buffer_funcs(struct amdgpu_device *adev); +static void cik_sdma_set_vm_pte_funcs(struct amdgpu_device *adev); +static int cik_sdma_soft_reset(void *handle); + +MODULE_FIRMWARE("amdgpu/bonaire_sdma.bin"); +MODULE_FIRMWARE("amdgpu/bonaire_sdma1.bin"); +MODULE_FIRMWARE("amdgpu/hawaii_sdma.bin"); +MODULE_FIRMWARE("amdgpu/hawaii_sdma1.bin"); +MODULE_FIRMWARE("amdgpu/kaveri_sdma.bin"); +MODULE_FIRMWARE("amdgpu/kaveri_sdma1.bin"); +MODULE_FIRMWARE("amdgpu/kabini_sdma.bin"); +MODULE_FIRMWARE("amdgpu/kabini_sdma1.bin"); +MODULE_FIRMWARE("amdgpu/mullins_sdma.bin"); +MODULE_FIRMWARE("amdgpu/mullins_sdma1.bin"); + +u32 amdgpu_cik_gpu_check_soft_reset(struct amdgpu_device *adev); + + +static void cik_sdma_free_microcode(struct amdgpu_device *adev) +{ + int i; + + for (i = 0; i < adev->sdma.num_instances; i++) + amdgpu_ucode_release(&adev->sdma.instance[i].fw); +} + +/* + * sDMA - System DMA + * Starting with CIK, the GPU has new asynchronous + * DMA engines. These engines are used for compute + * and gfx. There are two DMA engines (SDMA0, SDMA1) + * and each one supports 1 ring buffer used for gfx + * and 2 queues used for compute. + * + * The programming model is very similar to the CP + * (ring buffer, IBs, etc.), but sDMA has it's own + * packet format that is different from the PM4 format + * used by the CP. sDMA supports copying data, writing + * embedded data, solid fills, and a number of other + * things. It also has support for tiling/detiling of + * buffers. + */ + +/** + * cik_sdma_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. + */ +static int cik_sdma_init_microcode(struct amdgpu_device *adev) +{ + const char *chip_name; + char fw_name[30]; + int err = 0, i; + + DRM_DEBUG("\n"); + + switch (adev->asic_type) { + case CHIP_BONAIRE: + chip_name = "bonaire"; + break; + case CHIP_HAWAII: + chip_name = "hawaii"; + break; + case CHIP_KAVERI: + chip_name = "kaveri"; + break; + case CHIP_KABINI: + chip_name = "kabini"; + break; + case CHIP_MULLINS: + chip_name = "mullins"; + break; + default: BUG(); + } + + for (i = 0; i < adev->sdma.num_instances; i++) { + if (i == 0) + snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_sdma.bin", chip_name); + else + snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_sdma1.bin", chip_name); + err = amdgpu_ucode_request(adev, &adev->sdma.instance[i].fw, fw_name); + if (err) + goto out; + } +out: + if (err) { + pr_err("cik_sdma: Failed to load firmware \"%s\"\n", fw_name); + for (i = 0; i < adev->sdma.num_instances; i++) + amdgpu_ucode_release(&adev->sdma.instance[i].fw); + } + return err; +} + +/** + * cik_sdma_ring_get_rptr - get the current read pointer + * + * @ring: amdgpu ring pointer + * + * Get the current rptr from the hardware (CIK+). + */ +static uint64_t cik_sdma_ring_get_rptr(struct amdgpu_ring *ring) +{ + u32 rptr; + + rptr = *ring->rptr_cpu_addr; + + return (rptr & 0x3fffc) >> 2; +} + +/** + * cik_sdma_ring_get_wptr - get the current write pointer + * + * @ring: amdgpu ring pointer + * + * Get the current wptr from the hardware (CIK+). + */ +static uint64_t cik_sdma_ring_get_wptr(struct amdgpu_ring *ring) +{ + struct amdgpu_device *adev = ring->adev; + + return (RREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[ring->me]) & 0x3fffc) >> 2; +} + +/** + * cik_sdma_ring_set_wptr - commit the write pointer + * + * @ring: amdgpu ring pointer + * + * Write the wptr back to the hardware (CIK+). + */ +static void cik_sdma_ring_set_wptr(struct amdgpu_ring *ring) +{ + struct amdgpu_device *adev = ring->adev; + + WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[ring->me], + (ring->wptr << 2) & 0x3fffc); +} + +static void cik_sdma_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_NOP_COUNT(count - 1)); + else + amdgpu_ring_write(ring, ring->funcs->nop); +} + +/** + * cik_sdma_ring_emit_ib - Schedule an IB on the DMA engine + * + * @ring: amdgpu ring pointer + * @job: job to retrive vmid from + * @ib: IB object to schedule + * @flags: unused + * + * Schedule an IB in the DMA ring (CIK). + */ +static void cik_sdma_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); + u32 extra_bits = vmid & 0xf; + + /* IB packet must end on a 8 DW boundary */ + cik_sdma_ring_insert_nop(ring, (4 - lower_32_bits(ring->wptr)) & 7); + + amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_INDIRECT_BUFFER, 0, extra_bits)); + amdgpu_ring_write(ring, ib->gpu_addr & 0xffffffe0); /* base must be 32 byte aligned */ + amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr) & 0xffffffff); + amdgpu_ring_write(ring, ib->length_dw); + +} + +/** + * cik_sdma_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 cik_sdma_ring_emit_hdp_flush(struct amdgpu_ring *ring) +{ + u32 extra_bits = (SDMA_POLL_REG_MEM_EXTRA_OP(1) | + SDMA_POLL_REG_MEM_EXTRA_FUNC(3)); /* == */ + u32 ref_and_mask; + + if (ring->me == 0) + ref_and_mask = GPU_HDP_FLUSH_DONE__SDMA0_MASK; + else + ref_and_mask = GPU_HDP_FLUSH_DONE__SDMA1_MASK; + + amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_POLL_REG_MEM, 0, extra_bits)); + amdgpu_ring_write(ring, mmGPU_HDP_FLUSH_DONE << 2); + amdgpu_ring_write(ring, mmGPU_HDP_FLUSH_REQ << 2); + amdgpu_ring_write(ring, ref_and_mask); /* reference */ + amdgpu_ring_write(ring, ref_and_mask); /* mask */ + amdgpu_ring_write(ring, (0xfff << 16) | 10); /* retry count, poll interval */ +} + +/** + * cik_sdma_ring_emit_fence - emit a fence on the DMA ring + * + * @ring: amdgpu ring pointer + * @addr: address + * @seq: sequence number + * @flags: fence related flags + * + * Add a DMA fence packet to the ring to write + * the fence seq number and DMA trap packet to generate + * an interrupt if needed (CIK). + */ +static void cik_sdma_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_PACKET(SDMA_OPCODE_FENCE, 0, 0)); + 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_PACKET(SDMA_OPCODE_FENCE, 0, 0)); + amdgpu_ring_write(ring, lower_32_bits(addr)); + amdgpu_ring_write(ring, upper_32_bits(addr)); + amdgpu_ring_write(ring, upper_32_bits(seq)); + } + + /* generate an interrupt */ + amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_TRAP, 0, 0)); +} + +/** + * cik_sdma_gfx_stop - stop the gfx async dma engines + * + * @adev: amdgpu_device pointer + * + * Stop the gfx async dma ring buffers (CIK). + */ +static void cik_sdma_gfx_stop(struct amdgpu_device *adev) +{ + u32 rb_cntl; + int i; + + amdgpu_sdma_unset_buffer_funcs_helper(adev); + + for (i = 0; i < adev->sdma.num_instances; i++) { + rb_cntl = RREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i]); + rb_cntl &= ~SDMA0_GFX_RB_CNTL__RB_ENABLE_MASK; + WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl); + WREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i], 0); + } +} + +/** + * cik_sdma_rlc_stop - stop the compute async dma engines + * + * @adev: amdgpu_device pointer + * + * Stop the compute async dma queues (CIK). + */ +static void cik_sdma_rlc_stop(struct amdgpu_device *adev) +{ + /* XXX todo */ +} + +/** + * cik_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 (VI). + */ +static void cik_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(mmSDMA0_CNTL + sdma_offsets[i]); + if (enable) { + f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_CNTL, + AUTO_CTXSW_ENABLE, 1); + if (amdgpu_sdma_phase_quantum) { + WREG32(mmSDMA0_PHASE0_QUANTUM + sdma_offsets[i], + phase_quantum); + WREG32(mmSDMA0_PHASE1_QUANTUM + sdma_offsets[i], + phase_quantum); + } + } else { + f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_CNTL, + AUTO_CTXSW_ENABLE, 0); + } + + WREG32(mmSDMA0_CNTL + sdma_offsets[i], f32_cntl); + } +} + +/** + * cik_sdma_enable - stop the async dma engines + * + * @adev: amdgpu_device pointer + * @enable: enable/disable the DMA MEs. + * + * Halt or unhalt the async dma engines (CIK). + */ +static void cik_sdma_enable(struct amdgpu_device *adev, bool enable) +{ + u32 me_cntl; + int i; + + if (!enable) { + cik_sdma_gfx_stop(adev); + cik_sdma_rlc_stop(adev); + } + + for (i = 0; i < adev->sdma.num_instances; i++) { + me_cntl = RREG32(mmSDMA0_F32_CNTL + sdma_offsets[i]); + if (enable) + me_cntl &= ~SDMA0_F32_CNTL__HALT_MASK; + else + me_cntl |= SDMA0_F32_CNTL__HALT_MASK; + WREG32(mmSDMA0_F32_CNTL + sdma_offsets[i], me_cntl); + } +} + +/** + * cik_sdma_gfx_resume - setup and start the async dma engines + * + * @adev: amdgpu_device pointer + * + * Set up the gfx DMA ring buffers and enable them (CIK). + * Returns 0 for success, error for failure. + */ +static int cik_sdma_gfx_resume(struct amdgpu_device *adev) +{ + struct amdgpu_ring *ring; + u32 rb_cntl, ib_cntl; + u32 rb_bufsz; + int i, j, r; + + for (i = 0; i < adev->sdma.num_instances; i++) { + ring = &adev->sdma.instance[i].ring; + + mutex_lock(&adev->srbm_mutex); + for (j = 0; j < 16; j++) { + cik_srbm_select(adev, 0, 0, 0, j); + /* SDMA GFX */ + WREG32(mmSDMA0_GFX_VIRTUAL_ADDR + sdma_offsets[i], 0); + WREG32(mmSDMA0_GFX_APE1_CNTL + sdma_offsets[i], 0); + /* XXX SDMA RLC - todo */ + } + cik_srbm_select(adev, 0, 0, 0, 0); + mutex_unlock(&adev->srbm_mutex); + + WREG32(mmSDMA0_TILING_CONFIG + sdma_offsets[i], + adev->gfx.config.gb_addr_config & 0x70); + + WREG32(mmSDMA0_SEM_INCOMPLETE_TIMER_CNTL + sdma_offsets[i], 0); + WREG32(mmSDMA0_SEM_WAIT_FAIL_TIMER_CNTL + sdma_offsets[i], 0); + + /* Set ring buffer size in dwords */ + rb_bufsz = order_base_2(ring->ring_size / 4); + rb_cntl = rb_bufsz << 1; +#ifdef __BIG_ENDIAN + rb_cntl |= SDMA0_GFX_RB_CNTL__RB_SWAP_ENABLE_MASK | + SDMA0_GFX_RB_CNTL__RPTR_WRITEBACK_SWAP_ENABLE_MASK; +#endif + WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl); + + /* Initialize the ring buffer's read and write pointers */ + WREG32(mmSDMA0_GFX_RB_RPTR + sdma_offsets[i], 0); + WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[i], 0); + WREG32(mmSDMA0_GFX_IB_RPTR + sdma_offsets[i], 0); + WREG32(mmSDMA0_GFX_IB_OFFSET + sdma_offsets[i], 0); + + /* set the wb address whether it's enabled or not */ + WREG32(mmSDMA0_GFX_RB_RPTR_ADDR_HI + sdma_offsets[i], + upper_32_bits(ring->rptr_gpu_addr) & 0xFFFFFFFF); + WREG32(mmSDMA0_GFX_RB_RPTR_ADDR_LO + sdma_offsets[i], + ((ring->rptr_gpu_addr) & 0xFFFFFFFC)); + + rb_cntl |= SDMA0_GFX_RB_CNTL__RPTR_WRITEBACK_ENABLE_MASK; + + WREG32(mmSDMA0_GFX_RB_BASE + sdma_offsets[i], ring->gpu_addr >> 8); + WREG32(mmSDMA0_GFX_RB_BASE_HI + sdma_offsets[i], ring->gpu_addr >> 40); + + ring->wptr = 0; + WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[i], ring->wptr << 2); + + /* enable DMA RB */ + WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], + rb_cntl | SDMA0_GFX_RB_CNTL__RB_ENABLE_MASK); + + ib_cntl = SDMA0_GFX_IB_CNTL__IB_ENABLE_MASK; +#ifdef __BIG_ENDIAN + ib_cntl |= SDMA0_GFX_IB_CNTL__IB_SWAP_ENABLE_MASK; +#endif + /* enable DMA IBs */ + WREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i], ib_cntl); + } + + cik_sdma_enable(adev, true); + + for (i = 0; i < adev->sdma.num_instances; i++) { + ring = &adev->sdma.instance[i].ring; + r = amdgpu_ring_test_helper(ring); + if (r) + return r; + + if (adev->mman.buffer_funcs_ring == ring) + amdgpu_ttm_set_buffer_funcs_status(adev, true); + } + + return 0; +} + +/** + * cik_sdma_rlc_resume - setup and start the async dma engines + * + * @adev: amdgpu_device pointer + * + * Set up the compute DMA queues and enable them (CIK). + * Returns 0 for success, error for failure. + */ +static int cik_sdma_rlc_resume(struct amdgpu_device *adev) +{ + /* XXX todo */ + return 0; +} + +/** + * cik_sdma_load_microcode - load the sDMA ME ucode + * + * @adev: amdgpu_device pointer + * + * Loads the sDMA0/1 ucode. + * Returns 0 for success, -EINVAL if the ucode is not available. + */ +static int cik_sdma_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 */ + cik_sdma_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; + adev->sdma.instance[i].fw_version = le32_to_cpu(hdr->header.ucode_version); + adev->sdma.instance[i].feature_version = le32_to_cpu(hdr->ucode_feature_version); + if (adev->sdma.instance[i].feature_version >= 20) + adev->sdma.instance[i].burst_nop = true; + fw_data = (const __le32 *) + (adev->sdma.instance[i].fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes)); + WREG32(mmSDMA0_UCODE_ADDR + sdma_offsets[i], 0); + for (j = 0; j < fw_size; j++) + WREG32(mmSDMA0_UCODE_DATA + sdma_offsets[i], le32_to_cpup(fw_data++)); + WREG32(mmSDMA0_UCODE_ADDR + sdma_offsets[i], adev->sdma.instance[i].fw_version); + } + + return 0; +} + +/** + * cik_sdma_start - setup and start the async dma engines + * + * @adev: amdgpu_device pointer + * + * Set up the DMA engines and enable them (CIK). + * Returns 0 for success, error for failure. + */ +static int cik_sdma_start(struct amdgpu_device *adev) +{ + int r; + + r = cik_sdma_load_microcode(adev); + if (r) + return r; + + /* halt the engine before programing */ + cik_sdma_enable(adev, false); + /* enable sdma ring preemption */ + cik_ctx_switch_enable(adev, true); + + /* start the gfx rings and rlc compute queues */ + r = cik_sdma_gfx_resume(adev); + if (r) + return r; + r = cik_sdma_rlc_resume(adev); + if (r) + return r; + + return 0; +} + +/** + * cik_sdma_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. (CIK). + * Returns 0 for success, error for failure. + */ +static int cik_sdma_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) + 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) + goto error_free_wb; + + amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_WRITE, SDMA_WRITE_SUB_OPCODE_LINEAR, 0)); + amdgpu_ring_write(ring, lower_32_bits(gpu_addr)); + amdgpu_ring_write(ring, upper_32_bits(gpu_addr)); + amdgpu_ring_write(ring, 1); /* number of DWs to follow */ + 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; + udelay(1); + } + + if (i >= adev->usec_timeout) + r = -ETIMEDOUT; + +error_free_wb: + amdgpu_device_wb_free(adev, index); + return r; +} + +/** + * cik_sdma_ring_test_ib - test an IB on the DMA engine + * + * @ring: amdgpu_ring structure holding ring information + * @timeout: timeout value in jiffies, or MAX_SCHEDULE_TIMEOUT + * + * Test a simple IB in the DMA ring (CIK). + * Returns 0 on success, error on failure. + */ +static int cik_sdma_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; + u32 tmp = 0; + u64 gpu_addr; + long r; + + r = amdgpu_device_wb_get(adev, &index); + if (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) + goto err0; + + ib.ptr[0] = SDMA_PACKET(SDMA_OPCODE_WRITE, + SDMA_WRITE_SUB_OPCODE_LINEAR, 0); + ib.ptr[1] = lower_32_bits(gpu_addr); + ib.ptr[2] = upper_32_bits(gpu_addr); + ib.ptr[3] = 1; + ib.ptr[4] = 0xDEADBEEF; + ib.length_dw = 5; + r = amdgpu_ib_schedule(ring, 1, &ib, NULL, &f); + if (r) + goto err1; + + r = dma_fence_wait_timeout(f, false, timeout); + if (r == 0) { + r = -ETIMEDOUT; + goto err1; + } else if (r < 0) { + 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; +} + +/** + * cik_sdma_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 (CIK). + */ +static void cik_sdma_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_PACKET(SDMA_OPCODE_COPY, + SDMA_WRITE_SUB_OPCODE_LINEAR, 0); + ib->ptr[ib->length_dw++] = bytes; + 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); +} + +/** + * cik_sdma_vm_write_pte - update PTEs by writing them manually + * + * @ib: indirect buffer to fill with commands + * @pe: addr of the page entry + * @value: dst addr to write into pe + * @count: number of page entries to update + * @incr: increase next addr by incr bytes + * + * Update PTEs by writing them manually using sDMA (CIK). + */ +static void cik_sdma_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_PACKET(SDMA_OPCODE_WRITE, + SDMA_WRITE_SUB_OPCODE_LINEAR, 0); + ib->ptr[ib->length_dw++] = lower_32_bits(pe); + ib->ptr[ib->length_dw++] = upper_32_bits(pe); + ib->ptr[ib->length_dw++] = ndw; + 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; + } +} + +/** + * cik_sdma_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 (CIK). + */ +static void cik_sdma_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_PACKET(SDMA_OPCODE_GENERATE_PTE_PDE, 0, 0); + 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; /* number of entries */ +} + +/** + * cik_sdma_ring_pad_ib - pad the IB to the required number of dw + * + * @ring: amdgpu_ring structure holding ring information + * @ib: indirect buffer to fill with padding + * + */ +static void cik_sdma_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) & 7; + for (i = 0; i < pad_count; i++) + if (sdma && sdma->burst_nop && (i == 0)) + ib->ptr[ib->length_dw++] = + SDMA_PACKET(SDMA_OPCODE_NOP, 0, 0) | + SDMA_NOP_COUNT(pad_count - 1); + else + ib->ptr[ib->length_dw++] = + SDMA_PACKET(SDMA_OPCODE_NOP, 0, 0); +} + +/** + * cik_sdma_ring_emit_pipeline_sync - sync the pipeline + * + * @ring: amdgpu_ring pointer + * + * Make sure all previous operations are completed (CIK). + */ +static void cik_sdma_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_PACKET(SDMA_OPCODE_POLL_REG_MEM, 0, + SDMA_POLL_REG_MEM_EXTRA_OP(0) | + SDMA_POLL_REG_MEM_EXTRA_FUNC(3) | /* equal */ + SDMA_POLL_REG_MEM_EXTRA_M)); + 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, (0xfff << 16) | 4); /* retry count, poll interval */ +} + +/** + * cik_sdma_ring_emit_vm_flush - cik vm flush using sDMA + * + * @ring: amdgpu_ring pointer + * @vmid: vmid number to use + * @pd_addr: address + * + * Update the page table base and flush the VM TLB + * using sDMA (CIK). + */ +static void cik_sdma_ring_emit_vm_flush(struct amdgpu_ring *ring, + unsigned vmid, uint64_t pd_addr) +{ + u32 extra_bits = (SDMA_POLL_REG_MEM_EXTRA_OP(0) | + SDMA_POLL_REG_MEM_EXTRA_FUNC(0)); /* always */ + + amdgpu_gmc_emit_flush_gpu_tlb(ring, vmid, pd_addr); + + amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_POLL_REG_MEM, 0, extra_bits)); + amdgpu_ring_write(ring, mmVM_INVALIDATE_REQUEST << 2); + amdgpu_ring_write(ring, 0); + amdgpu_ring_write(ring, 0); /* reference */ + amdgpu_ring_write(ring, 0); /* mask */ + amdgpu_ring_write(ring, (0xfff << 16) | 10); /* retry count, poll interval */ +} + +static void cik_sdma_ring_emit_wreg(struct amdgpu_ring *ring, + uint32_t reg, uint32_t val) +{ + amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000)); + amdgpu_ring_write(ring, reg); + amdgpu_ring_write(ring, val); +} + +static void cik_enable_sdma_mgcg(struct amdgpu_device *adev, + bool enable) +{ + u32 orig, data; + + if (enable && (adev->cg_flags & AMD_CG_SUPPORT_SDMA_MGCG)) { + WREG32(mmSDMA0_CLK_CTRL + SDMA0_REGISTER_OFFSET, 0x00000100); + WREG32(mmSDMA0_CLK_CTRL + SDMA1_REGISTER_OFFSET, 0x00000100); + } else { + orig = data = RREG32(mmSDMA0_CLK_CTRL + SDMA0_REGISTER_OFFSET); + data |= 0xff000000; + if (data != orig) + WREG32(mmSDMA0_CLK_CTRL + SDMA0_REGISTER_OFFSET, data); + + orig = data = RREG32(mmSDMA0_CLK_CTRL + SDMA1_REGISTER_OFFSET); + data |= 0xff000000; + if (data != orig) + WREG32(mmSDMA0_CLK_CTRL + SDMA1_REGISTER_OFFSET, data); + } +} + +static void cik_enable_sdma_mgls(struct amdgpu_device *adev, + bool enable) +{ + u32 orig, data; + + if (enable && (adev->cg_flags & AMD_CG_SUPPORT_SDMA_LS)) { + orig = data = RREG32(mmSDMA0_POWER_CNTL + SDMA0_REGISTER_OFFSET); + data |= 0x100; + if (orig != data) + WREG32(mmSDMA0_POWER_CNTL + SDMA0_REGISTER_OFFSET, data); + + orig = data = RREG32(mmSDMA0_POWER_CNTL + SDMA1_REGISTER_OFFSET); + data |= 0x100; + if (orig != data) + WREG32(mmSDMA0_POWER_CNTL + SDMA1_REGISTER_OFFSET, data); + } else { + orig = data = RREG32(mmSDMA0_POWER_CNTL + SDMA0_REGISTER_OFFSET); + data &= ~0x100; + if (orig != data) + WREG32(mmSDMA0_POWER_CNTL + SDMA0_REGISTER_OFFSET, data); + + orig = data = RREG32(mmSDMA0_POWER_CNTL + SDMA1_REGISTER_OFFSET); + data &= ~0x100; + if (orig != data) + WREG32(mmSDMA0_POWER_CNTL + SDMA1_REGISTER_OFFSET, data); + } +} + +static int cik_sdma_early_init(void *handle) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + adev->sdma.num_instances = SDMA_MAX_INSTANCE; + + cik_sdma_set_ring_funcs(adev); + cik_sdma_set_irq_funcs(adev); + cik_sdma_set_buffer_funcs(adev); + cik_sdma_set_vm_pte_funcs(adev); + + return 0; +} + +static int cik_sdma_sw_init(void *handle) +{ + struct amdgpu_ring *ring; + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + int r, i; + + r = cik_sdma_init_microcode(adev); + if (r) { + DRM_ERROR("Failed to load sdma firmware!\n"); + return r; + } + + /* SDMA trap event */ + r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, 224, + &adev->sdma.trap_irq); + if (r) + return r; + + /* SDMA Privileged inst */ + r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, 241, + &adev->sdma.illegal_inst_irq); + if (r) + return r; + + /* SDMA Privileged inst */ + r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, 247, + &adev->sdma.illegal_inst_irq); + if (r) + return r; + + for (i = 0; i < adev->sdma.num_instances; i++) { + ring = &adev->sdma.instance[i].ring; + ring->ring_obj = NULL; + sprintf(ring->name, "sdma%d", i); + r = amdgpu_ring_init(adev, ring, 1024, + &adev->sdma.trap_irq, + (i == 0) ? AMDGPU_SDMA_IRQ_INSTANCE0 : + AMDGPU_SDMA_IRQ_INSTANCE1, + AMDGPU_RING_PRIO_DEFAULT, NULL); + if (r) + return r; + } + + return r; +} + +static int cik_sdma_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); + + cik_sdma_free_microcode(adev); + return 0; +} + +static int cik_sdma_hw_init(void *handle) +{ + int r; + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + r = cik_sdma_start(adev); + if (r) + return r; + + return r; +} + +static int cik_sdma_hw_fini(void *handle) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + cik_ctx_switch_enable(adev, false); + cik_sdma_enable(adev, false); + + return 0; +} + +static int cik_sdma_suspend(void *handle) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + return cik_sdma_hw_fini(adev); +} + +static int cik_sdma_resume(void *handle) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + cik_sdma_soft_reset(handle); + + return cik_sdma_hw_init(adev); +} + +static bool cik_sdma_is_idle(void *handle) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + u32 tmp = RREG32(mmSRBM_STATUS2); + + if (tmp & (SRBM_STATUS2__SDMA_BUSY_MASK | + SRBM_STATUS2__SDMA1_BUSY_MASK)) + return false; + + return true; +} + +static int cik_sdma_wait_for_idle(void *handle) +{ + unsigned i; + u32 tmp; + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + for (i = 0; i < adev->usec_timeout; i++) { + tmp = RREG32(mmSRBM_STATUS2) & (SRBM_STATUS2__SDMA_BUSY_MASK | + SRBM_STATUS2__SDMA1_BUSY_MASK); + + if (!tmp) + return 0; + udelay(1); + } + return -ETIMEDOUT; +} + +static int cik_sdma_soft_reset(void *handle) +{ + u32 srbm_soft_reset = 0; + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + u32 tmp; + + /* sdma0 */ + tmp = RREG32(mmSDMA0_F32_CNTL + SDMA0_REGISTER_OFFSET); + tmp |= SDMA0_F32_CNTL__HALT_MASK; + WREG32(mmSDMA0_F32_CNTL + SDMA0_REGISTER_OFFSET, tmp); + srbm_soft_reset |= SRBM_SOFT_RESET__SOFT_RESET_SDMA_MASK; + + /* sdma1 */ + tmp = RREG32(mmSDMA0_F32_CNTL + SDMA1_REGISTER_OFFSET); + tmp |= SDMA0_F32_CNTL__HALT_MASK; + WREG32(mmSDMA0_F32_CNTL + SDMA1_REGISTER_OFFSET, tmp); + srbm_soft_reset |= SRBM_SOFT_RESET__SOFT_RESET_SDMA1_MASK; + + if (srbm_soft_reset) { + tmp = RREG32(mmSRBM_SOFT_RESET); + tmp |= srbm_soft_reset; + dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp); + WREG32(mmSRBM_SOFT_RESET, tmp); + tmp = RREG32(mmSRBM_SOFT_RESET); + + udelay(50); + + tmp &= ~srbm_soft_reset; + WREG32(mmSRBM_SOFT_RESET, tmp); + tmp = RREG32(mmSRBM_SOFT_RESET); + + /* Wait a little for things to settle down */ + udelay(50); + } + + return 0; +} + +static int cik_sdma_set_trap_irq_state(struct amdgpu_device *adev, + struct amdgpu_irq_src *src, + unsigned type, + enum amdgpu_interrupt_state state) +{ + u32 sdma_cntl; + + switch (type) { + case AMDGPU_SDMA_IRQ_INSTANCE0: + switch (state) { + case AMDGPU_IRQ_STATE_DISABLE: + sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET); + sdma_cntl &= ~SDMA0_CNTL__TRAP_ENABLE_MASK; + WREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET, sdma_cntl); + break; + case AMDGPU_IRQ_STATE_ENABLE: + sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET); + sdma_cntl |= SDMA0_CNTL__TRAP_ENABLE_MASK; + WREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET, sdma_cntl); + break; + default: + break; + } + break; + case AMDGPU_SDMA_IRQ_INSTANCE1: + switch (state) { + case AMDGPU_IRQ_STATE_DISABLE: + sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET); + sdma_cntl &= ~SDMA0_CNTL__TRAP_ENABLE_MASK; + WREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET, sdma_cntl); + break; + case AMDGPU_IRQ_STATE_ENABLE: + sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET); + sdma_cntl |= SDMA0_CNTL__TRAP_ENABLE_MASK; + WREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET, sdma_cntl); + break; + default: + break; + } + break; + default: + break; + } + return 0; +} + +static int cik_sdma_process_trap_irq(struct amdgpu_device *adev, + struct amdgpu_irq_src *source, + struct amdgpu_iv_entry *entry) +{ + u8 instance_id, queue_id; + + instance_id = (entry->ring_id & 0x3) >> 0; + queue_id = (entry->ring_id & 0xc) >> 2; + DRM_DEBUG("IH: SDMA trap\n"); + switch (instance_id) { + case 0: + switch (queue_id) { + case 0: + amdgpu_fence_process(&adev->sdma.instance[0].ring); + break; + case 1: + /* XXX compute */ + break; + case 2: + /* XXX compute */ + break; + } + break; + case 1: + switch (queue_id) { + case 0: + amdgpu_fence_process(&adev->sdma.instance[1].ring); + break; + case 1: + /* XXX compute */ + break; + case 2: + /* XXX compute */ + break; + } + break; + } + + return 0; +} + +static int cik_sdma_process_illegal_inst_irq(struct amdgpu_device *adev, + struct amdgpu_irq_src *source, + struct amdgpu_iv_entry *entry) +{ + u8 instance_id; + + DRM_ERROR("Illegal instruction in SDMA command stream\n"); + instance_id = (entry->ring_id & 0x3) >> 0; + drm_sched_fault(&adev->sdma.instance[instance_id].ring.sched); + return 0; +} + +static int cik_sdma_set_clockgating_state(void *handle, + enum amd_clockgating_state state) +{ + bool gate = false; + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + if (state == AMD_CG_STATE_GATE) + gate = true; + + cik_enable_sdma_mgcg(adev, gate); + cik_enable_sdma_mgls(adev, gate); + + return 0; +} + +static int cik_sdma_set_powergating_state(void *handle, + enum amd_powergating_state state) +{ + return 0; +} + +static const struct amd_ip_funcs cik_sdma_ip_funcs = { + .name = "cik_sdma", + .early_init = cik_sdma_early_init, + .late_init = NULL, + .sw_init = cik_sdma_sw_init, + .sw_fini = cik_sdma_sw_fini, + .hw_init = cik_sdma_hw_init, + .hw_fini = cik_sdma_hw_fini, + .suspend = cik_sdma_suspend, + .resume = cik_sdma_resume, + .is_idle = cik_sdma_is_idle, + .wait_for_idle = cik_sdma_wait_for_idle, + .soft_reset = cik_sdma_soft_reset, + .set_clockgating_state = cik_sdma_set_clockgating_state, + .set_powergating_state = cik_sdma_set_powergating_state, +}; + +static const struct amdgpu_ring_funcs cik_sdma_ring_funcs = { + .type = AMDGPU_RING_TYPE_SDMA, + .align_mask = 0xf, + .nop = SDMA_PACKET(SDMA_OPCODE_NOP, 0, 0), + .support_64bit_ptrs = false, + .get_rptr = cik_sdma_ring_get_rptr, + .get_wptr = cik_sdma_ring_get_wptr, + .set_wptr = cik_sdma_ring_set_wptr, + .emit_frame_size = + 6 + /* cik_sdma_ring_emit_hdp_flush */ + 3 + /* hdp invalidate */ + 6 + /* cik_sdma_ring_emit_pipeline_sync */ + CIK_FLUSH_GPU_TLB_NUM_WREG * 3 + 6 + /* cik_sdma_ring_emit_vm_flush */ + 9 + 9 + 9, /* cik_sdma_ring_emit_fence x3 for user fence, vm fence */ + .emit_ib_size = 7 + 4, /* cik_sdma_ring_emit_ib */ + .emit_ib = cik_sdma_ring_emit_ib, + .emit_fence = cik_sdma_ring_emit_fence, + .emit_pipeline_sync = cik_sdma_ring_emit_pipeline_sync, + .emit_vm_flush = cik_sdma_ring_emit_vm_flush, + .emit_hdp_flush = cik_sdma_ring_emit_hdp_flush, + .test_ring = cik_sdma_ring_test_ring, + .test_ib = cik_sdma_ring_test_ib, + .insert_nop = cik_sdma_ring_insert_nop, + .pad_ib = cik_sdma_ring_pad_ib, + .emit_wreg = cik_sdma_ring_emit_wreg, +}; + +static void cik_sdma_set_ring_funcs(struct amdgpu_device *adev) +{ + int i; + + for (i = 0; i < adev->sdma.num_instances; i++) { + adev->sdma.instance[i].ring.funcs = &cik_sdma_ring_funcs; + adev->sdma.instance[i].ring.me = i; + } +} + +static const struct amdgpu_irq_src_funcs cik_sdma_trap_irq_funcs = { + .set = cik_sdma_set_trap_irq_state, + .process = cik_sdma_process_trap_irq, +}; + +static const struct amdgpu_irq_src_funcs cik_sdma_illegal_inst_irq_funcs = { + .process = cik_sdma_process_illegal_inst_irq, +}; + +static void cik_sdma_set_irq_funcs(struct amdgpu_device *adev) +{ + adev->sdma.trap_irq.num_types = AMDGPU_SDMA_IRQ_LAST; + adev->sdma.trap_irq.funcs = &cik_sdma_trap_irq_funcs; + adev->sdma.illegal_inst_irq.funcs = &cik_sdma_illegal_inst_irq_funcs; +} + +/** + * cik_sdma_emit_copy_buffer - copy buffer using the sDMA engine + * + * @ib: indirect buffer to copy to + * @src_offset: src GPU address + * @dst_offset: dst GPU address + * @byte_count: number of bytes to xfer + * @tmz: is this a secure operation + * + * Copy GPU buffers using the DMA engine (CIK). + * Used by the amdgpu ttm implementation to move pages if + * registered as the asic copy callback. + */ +static void cik_sdma_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_PACKET(SDMA_OPCODE_COPY, SDMA_COPY_SUB_OPCODE_LINEAR, 0); + ib->ptr[ib->length_dw++] = byte_count; + 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); +} + +/** + * cik_sdma_emit_fill_buffer - fill buffer using the sDMA engine + * + * @ib: indirect buffer to fill + * @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 (CIK). + */ +static void cik_sdma_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_PACKET(SDMA_OPCODE_CONSTANT_FILL, 0, 0); + 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; +} + +static const struct amdgpu_buffer_funcs cik_sdma_buffer_funcs = { + .copy_max_bytes = 0x1fffff, + .copy_num_dw = 7, + .emit_copy_buffer = cik_sdma_emit_copy_buffer, + + .fill_max_bytes = 0x1fffff, + .fill_num_dw = 5, + .emit_fill_buffer = cik_sdma_emit_fill_buffer, +}; + +static void cik_sdma_set_buffer_funcs(struct amdgpu_device *adev) +{ + adev->mman.buffer_funcs = &cik_sdma_buffer_funcs; + adev->mman.buffer_funcs_ring = &adev->sdma.instance[0].ring; +} + +static const struct amdgpu_vm_pte_funcs cik_sdma_vm_pte_funcs = { + .copy_pte_num_dw = 7, + .copy_pte = cik_sdma_vm_copy_pte, + + .write_pte = cik_sdma_vm_write_pte, + .set_pte_pde = cik_sdma_vm_set_pte_pde, +}; + +static void cik_sdma_set_vm_pte_funcs(struct amdgpu_device *adev) +{ + unsigned i; + + adev->vm_manager.vm_pte_funcs = &cik_sdma_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 cik_sdma_ip_block = +{ + .type = AMD_IP_BLOCK_TYPE_SDMA, + .major = 2, + .minor = 0, + .rev = 0, + .funcs = &cik_sdma_ip_funcs, +}; |