diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/cik_sdma.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/cik_sdma.c | 1407 |
1 files changed, 1407 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 000000000000..ab83cc1ca4cc --- /dev/null +++ b/drivers/gpu/drm/amd/amdgpu/cik_sdma.c @@ -0,0 +1,1407 @@ +/* + * 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 <drm/drmP.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); + +MODULE_FIRMWARE("radeon/bonaire_sdma.bin"); +MODULE_FIRMWARE("radeon/bonaire_sdma1.bin"); +MODULE_FIRMWARE("radeon/hawaii_sdma.bin"); +MODULE_FIRMWARE("radeon/hawaii_sdma1.bin"); +MODULE_FIRMWARE("radeon/kaveri_sdma.bin"); +MODULE_FIRMWARE("radeon/kaveri_sdma1.bin"); +MODULE_FIRMWARE("radeon/kabini_sdma.bin"); +MODULE_FIRMWARE("radeon/kabini_sdma1.bin"); +MODULE_FIRMWARE("radeon/mullins_sdma.bin"); +MODULE_FIRMWARE("radeon/mullins_sdma1.bin"); + +u32 amdgpu_cik_gpu_check_soft_reset(struct amdgpu_device *adev); + +/* + * 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, 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 < SDMA_MAX_INSTANCE; i++) { + if (i == 0) + snprintf(fw_name, sizeof(fw_name), "radeon/%s_sdma.bin", chip_name); + else + snprintf(fw_name, sizeof(fw_name), "radeon/%s_sdma1.bin", chip_name); + err = request_firmware(&adev->sdma[i].fw, fw_name, adev->dev); + if (err) + goto out; + err = amdgpu_ucode_validate(adev->sdma[i].fw); + } +out: + if (err) { + printk(KERN_ERR + "cik_sdma: Failed to load firmware \"%s\"\n", + fw_name); + for (i = 0; i < SDMA_MAX_INSTANCE; i++) { + release_firmware(adev->sdma[i].fw); + adev->sdma[i].fw = NULL; + } + } + 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 uint32_t cik_sdma_ring_get_rptr(struct amdgpu_ring *ring) +{ + u32 rptr; + + rptr = ring->adev->wb.wb[ring->rptr_offs]; + + 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 uint32_t cik_sdma_ring_get_wptr(struct amdgpu_ring *ring) +{ + struct amdgpu_device *adev = ring->adev; + u32 me = (ring == &adev->sdma[0].ring) ? 0 : 1; + + return (RREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[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; + u32 me = (ring == &adev->sdma[0].ring) ? 0 : 1; + + WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[me], (ring->wptr << 2) & 0x3fffc); +} + +/** + * cik_sdma_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 (CIK). + */ +static void cik_sdma_ring_emit_ib(struct amdgpu_ring *ring, + struct amdgpu_ib *ib) +{ + u32 extra_bits = (ib->vm ? ib->vm->ids[ring->idx].id : 0) & 0xf; + u32 next_rptr = ring->wptr + 5; + + while ((next_rptr & 7) != 4) + next_rptr++; + + next_rptr += 4; + amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_WRITE, SDMA_WRITE_SUB_OPCODE_LINEAR, 0)); + amdgpu_ring_write(ring, ring->next_rptr_gpu_addr & 0xfffffffc); + amdgpu_ring_write(ring, upper_32_bits(ring->next_rptr_gpu_addr) & 0xffffffff); + amdgpu_ring_write(ring, 1); /* number of DWs to follow */ + amdgpu_ring_write(ring, next_rptr); + + /* IB packet must end on a 8 DW boundary */ + while ((ring->wptr & 7) != 4) + amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_NOP, 0, 0)); + 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 == &ring->adev->sdma[0].ring) + 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 + * @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 (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_ring_emit_semaphore - emit a semaphore on the dma ring + * + * @ring: amdgpu_ring structure holding ring information + * @semaphore: amdgpu semaphore object + * @emit_wait: wait or signal semaphore + * + * Add a DMA semaphore packet to the ring wait on or signal + * other rings (CIK). + */ +static bool cik_sdma_ring_emit_semaphore(struct amdgpu_ring *ring, + struct amdgpu_semaphore *semaphore, + bool emit_wait) +{ + u64 addr = semaphore->gpu_addr; + u32 extra_bits = emit_wait ? 0 : SDMA_SEMAPHORE_EXTRA_S; + + amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SEMAPHORE, 0, extra_bits)); + amdgpu_ring_write(ring, addr & 0xfffffff8); + amdgpu_ring_write(ring, upper_32_bits(addr) & 0xffffffff); + + return true; +} + +/** + * 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) +{ + struct amdgpu_ring *sdma0 = &adev->sdma[0].ring; + struct amdgpu_ring *sdma1 = &adev->sdma[1].ring; + u32 rb_cntl; + int i; + + if ((adev->mman.buffer_funcs_ring == sdma0) || + (adev->mman.buffer_funcs_ring == sdma1)) + amdgpu_ttm_set_active_vram_size(adev, adev->mc.visible_vram_size); + + for (i = 0; i < SDMA_MAX_INSTANCE; 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); + } + sdma0->ready = false; + sdma1->ready = false; +} + +/** + * 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_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 == false) { + cik_sdma_gfx_stop(adev); + cik_sdma_rlc_stop(adev); + } + + for (i = 0; i < SDMA_MAX_INSTANCE; 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; + u32 wb_offset; + int i, j, r; + + for (i = 0; i < SDMA_MAX_INSTANCE; i++) { + ring = &adev->sdma[i].ring; + wb_offset = (ring->rptr_offs * 4); + + 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_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); + + /* set the wb address whether it's enabled or not */ + WREG32(mmSDMA0_GFX_RB_RPTR_ADDR_HI + sdma_offsets[i], + upper_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFF); + WREG32(mmSDMA0_GFX_RB_RPTR_ADDR_LO + sdma_offsets[i], + ((adev->wb.gpu_addr + wb_offset) & 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); + + ring->ready = true; + + r = amdgpu_ring_test_ring(ring); + if (r) { + ring->ready = false; + return r; + } + + if (adev->mman.buffer_funcs_ring == ring) + amdgpu_ttm_set_active_vram_size(adev, adev->mc.real_vram_size); + } + + 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; + + if (!adev->sdma[0].fw || !adev->sdma[1].fw) + return -EINVAL; + + /* halt the MEs */ + cik_sdma_enable(adev, false); + + for (i = 0; i < SDMA_MAX_INSTANCE; i++) { + hdr = (const struct sdma_firmware_header_v1_0 *)adev->sdma[i].fw->data; + amdgpu_ucode_print_sdma_hdr(&hdr->header); + fw_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4; + adev->sdma[i].fw_version = le32_to_cpu(hdr->header.ucode_version); + fw_data = (const __le32 *) + (adev->sdma[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[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; + + /* unhalt the MEs */ + cik_sdma_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_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_lock(ring, 5); + if (r) { + DRM_ERROR("amdgpu: dma failed to lock ring %d (%d).\n", ring->idx, r); + amdgpu_wb_free(adev, index); + return r; + } + 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_unlock_commit(ring); + + for (i = 0; i < adev->usec_timeout; i++) { + tmp = le32_to_cpu(adev->wb.wb[index]); + if (tmp == 0xDEADBEEF) + break; + DRM_UDELAY(1); + } + + if (i < adev->usec_timeout) { + DRM_INFO("ring test on %d succeeded in %d usecs\n", ring->idx, i); + } else { + DRM_ERROR("amdgpu: ring %d test failed (0x%08X)\n", + ring->idx, tmp); + r = -EINVAL; + } + amdgpu_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 + * + * 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) +{ + struct amdgpu_device *adev = ring->adev; + struct amdgpu_ib ib; + unsigned i; + unsigned index; + int r; + u32 tmp = 0; + u64 gpu_addr; + + r = amdgpu_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_ib_get(ring, NULL, 256, &ib); + if (r) { + amdgpu_wb_free(adev, index); + DRM_ERROR("amdgpu: failed to get ib (%d).\n", r); + return r; + } + + 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(adev, 1, &ib, AMDGPU_FENCE_OWNER_UNDEFINED); + if (r) { + amdgpu_ib_free(adev, &ib); + amdgpu_wb_free(adev, index); + DRM_ERROR("amdgpu: failed to schedule ib (%d).\n", r); + return r; + } + r = amdgpu_fence_wait(ib.fence, false); + if (r) { + amdgpu_ib_free(adev, &ib); + amdgpu_wb_free(adev, index); + DRM_ERROR("amdgpu: fence wait failed (%d).\n", r); + return r; + } + for (i = 0; i < adev->usec_timeout; i++) { + tmp = le32_to_cpu(adev->wb.wb[index]); + if (tmp == 0xDEADBEEF) + break; + DRM_UDELAY(1); + } + if (i < adev->usec_timeout) { + DRM_INFO("ib test on ring %d succeeded in %u usecs\n", + ib.fence->ring->idx, i); + } else { + DRM_ERROR("amdgpu: ib test failed (0x%08X)\n", tmp); + r = -EINVAL; + } + amdgpu_ib_free(adev, &ib); + amdgpu_wb_free(adev, index); + return r; +} + +/** + * cik_sdma_vm_copy_pages - 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) +{ + while (count) { + unsigned bytes = count * 8; + if (bytes > 0x1FFFF8) + bytes = 0x1FFFF8; + + 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); + + pe += bytes; + src += bytes; + count -= bytes / 8; + } +} + +/** + * cik_sdma_vm_write_pages - 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 (CIK). + */ +static void cik_sdma_vm_write_pte(struct amdgpu_ib *ib, + uint64_t pe, + uint64_t addr, unsigned count, + uint32_t incr, uint32_t flags) +{ + uint64_t value; + unsigned ndw; + + while (count) { + ndw = count * 2; + if (ndw > 0xFFFFE) + ndw = 0xFFFFE; + + /* for non-physically contiguous pages (system) */ + ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_WRITE, + SDMA_WRITE_SUB_OPCODE_LINEAR, 0); + ib->ptr[ib->length_dw++] = pe; + ib->ptr[ib->length_dw++] = upper_32_bits(pe); + ib->ptr[ib->length_dw++] = ndw; + for (; ndw > 0; ndw -= 2, --count, pe += 8) { + if (flags & AMDGPU_PTE_SYSTEM) { + value = amdgpu_vm_map_gart(ib->ring->adev, addr); + value &= 0xFFFFFFFFFFFFF000ULL; + } else if (flags & AMDGPU_PTE_VALID) { + value = addr; + } else { + value = 0; + } + addr += incr; + value |= flags; + ib->ptr[ib->length_dw++] = value; + ib->ptr[ib->length_dw++] = upper_32_bits(value); + } + } +} + +/** + * cik_sdma_vm_set_pages - 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, uint32_t flags) +{ + uint64_t value; + unsigned ndw; + + while (count) { + ndw = count; + if (ndw > 0x7FFFF) + ndw = 0x7FFFF; + + if (flags & AMDGPU_PTE_VALID) + value = addr; + else + value = 0; + + /* for physically contiguous pages (vram) */ + ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_GENERATE_PTE_PDE, 0, 0); + ib->ptr[ib->length_dw++] = pe; /* dst addr */ + ib->ptr[ib->length_dw++] = upper_32_bits(pe); + ib->ptr[ib->length_dw++] = flags; /* mask */ + ib->ptr[ib->length_dw++] = 0; + ib->ptr[ib->length_dw++] = value; /* value */ + ib->ptr[ib->length_dw++] = upper_32_bits(value); + ib->ptr[ib->length_dw++] = incr; /* increment size */ + ib->ptr[ib->length_dw++] = 0; + ib->ptr[ib->length_dw++] = ndw; /* number of entries */ + + pe += ndw * 8; + addr += ndw * incr; + count -= ndw; + } +} + +/** + * cik_sdma_vm_pad_ib - pad the IB to the required number of dw + * + * @ib: indirect buffer to fill with padding + * + */ +static void cik_sdma_vm_pad_ib(struct amdgpu_ib *ib) +{ + while (ib->length_dw & 0x7) + ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_NOP, 0, 0); +} + +/** + * cik_sdma_ring_emit_vm_flush - cik vm flush using sDMA + * + * @ring: amdgpu_ring pointer + * @vm: amdgpu_vm pointer + * + * 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 vm_id, uint64_t pd_addr) +{ + u32 extra_bits = (SDMA_POLL_REG_MEM_EXTRA_OP(0) | + SDMA_POLL_REG_MEM_EXTRA_FUNC(0)); /* always */ + + amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000)); + if (vm_id < 8) { + amdgpu_ring_write(ring, (mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + vm_id)); + } else { + amdgpu_ring_write(ring, (mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + vm_id - 8)); + } + amdgpu_ring_write(ring, pd_addr >> 12); + + /* flush TLB */ + amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000)); + amdgpu_ring_write(ring, mmVM_INVALIDATE_REQUEST); + amdgpu_ring_write(ring, 1 << vm_id); + + 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_enable_sdma_mgcg(struct amdgpu_device *adev, + bool enable) +{ + u32 orig, data; + + if (enable && (adev->cg_flags & AMDGPU_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 & AMDGPU_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; + + 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; + + 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, 224, &adev->sdma_trap_irq); + if (r) + return r; + + /* SDMA Privileged inst */ + r = amdgpu_irq_add_id(adev, 241, &adev->sdma_illegal_inst_irq); + if (r) + return r; + + /* SDMA Privileged inst */ + r = amdgpu_irq_add_id(adev, 247, &adev->sdma_illegal_inst_irq); + if (r) + return r; + + ring = &adev->sdma[0].ring; + ring->ring_obj = NULL; + + ring = &adev->sdma[1].ring; + ring->ring_obj = NULL; + + ring = &adev->sdma[0].ring; + sprintf(ring->name, "sdma0"); + r = amdgpu_ring_init(adev, ring, 256 * 1024, + SDMA_PACKET(SDMA_OPCODE_NOP, 0, 0), 0xf, + &adev->sdma_trap_irq, AMDGPU_SDMA_IRQ_TRAP0, + AMDGPU_RING_TYPE_SDMA); + if (r) + return r; + + ring = &adev->sdma[1].ring; + sprintf(ring->name, "sdma1"); + r = amdgpu_ring_init(adev, ring, 256 * 1024, + SDMA_PACKET(SDMA_OPCODE_NOP, 0, 0), 0xf, + &adev->sdma_trap_irq, AMDGPU_SDMA_IRQ_TRAP1, + AMDGPU_RING_TYPE_SDMA); + if (r) + return r; + + return r; +} + +static int cik_sdma_sw_fini(void *handle) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + amdgpu_ring_fini(&adev->sdma[0].ring); + amdgpu_ring_fini(&adev->sdma[1].ring); + + 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_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; + + 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 void cik_sdma_print_status(void *handle) +{ + int i, j; + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + dev_info(adev->dev, "CIK SDMA registers\n"); + dev_info(adev->dev, " SRBM_STATUS2=0x%08X\n", + RREG32(mmSRBM_STATUS2)); + for (i = 0; i < SDMA_MAX_INSTANCE; i++) { + dev_info(adev->dev, " SDMA%d_STATUS_REG=0x%08X\n", + i, RREG32(mmSDMA0_STATUS_REG + sdma_offsets[i])); + dev_info(adev->dev, " SDMA%d_ME_CNTL=0x%08X\n", + i, RREG32(mmSDMA0_F32_CNTL + sdma_offsets[i])); + dev_info(adev->dev, " SDMA%d_CNTL=0x%08X\n", + i, RREG32(mmSDMA0_CNTL + sdma_offsets[i])); + dev_info(adev->dev, " SDMA%d_SEM_INCOMPLETE_TIMER_CNTL=0x%08X\n", + i, RREG32(mmSDMA0_SEM_INCOMPLETE_TIMER_CNTL + sdma_offsets[i])); + dev_info(adev->dev, " SDMA%d_SEM_WAIT_FAIL_TIMER_CNTL=0x%08X\n", + i, RREG32(mmSDMA0_SEM_WAIT_FAIL_TIMER_CNTL + sdma_offsets[i])); + dev_info(adev->dev, " SDMA%d_GFX_IB_CNTL=0x%08X\n", + i, RREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i])); + dev_info(adev->dev, " SDMA%d_GFX_RB_CNTL=0x%08X\n", + i, RREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i])); + dev_info(adev->dev, " SDMA%d_GFX_RB_RPTR=0x%08X\n", + i, RREG32(mmSDMA0_GFX_RB_RPTR + sdma_offsets[i])); + dev_info(adev->dev, " SDMA%d_GFX_RB_WPTR=0x%08X\n", + i, RREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[i])); + dev_info(adev->dev, " SDMA%d_GFX_RB_RPTR_ADDR_HI=0x%08X\n", + i, RREG32(mmSDMA0_GFX_RB_RPTR_ADDR_HI + sdma_offsets[i])); + dev_info(adev->dev, " SDMA%d_GFX_RB_RPTR_ADDR_LO=0x%08X\n", + i, RREG32(mmSDMA0_GFX_RB_RPTR_ADDR_LO + sdma_offsets[i])); + dev_info(adev->dev, " SDMA%d_GFX_RB_BASE=0x%08X\n", + i, RREG32(mmSDMA0_GFX_RB_BASE + sdma_offsets[i])); + dev_info(adev->dev, " SDMA%d_GFX_RB_BASE_HI=0x%08X\n", + i, RREG32(mmSDMA0_GFX_RB_BASE_HI + sdma_offsets[i])); + mutex_lock(&adev->srbm_mutex); + for (j = 0; j < 16; j++) { + cik_srbm_select(adev, 0, 0, 0, j); + dev_info(adev->dev, " VM %d:\n", j); + dev_info(adev->dev, " SDMA0_GFX_VIRTUAL_ADDR=0x%08X\n", + RREG32(mmSDMA0_GFX_VIRTUAL_ADDR + sdma_offsets[i])); + dev_info(adev->dev, " SDMA0_GFX_APE1_CNTL=0x%08X\n", + RREG32(mmSDMA0_GFX_APE1_CNTL + sdma_offsets[i])); + } + cik_srbm_select(adev, 0, 0, 0, 0); + mutex_unlock(&adev->srbm_mutex); + } +} + +static int cik_sdma_soft_reset(void *handle) +{ + u32 srbm_soft_reset = 0; + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + u32 tmp = RREG32(mmSRBM_STATUS2); + + if (tmp & SRBM_STATUS2__SDMA_BUSY_MASK) { + /* 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; + } + if (tmp & SRBM_STATUS2__SDMA1_BUSY_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) { + cik_sdma_print_status((void *)adev); + + 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); + + cik_sdma_print_status((void *)adev); + } + + 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_TRAP0: + 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_TRAP1: + 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[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[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) +{ + DRM_ERROR("Illegal instruction in SDMA command stream\n"); + schedule_work(&adev->reset_work); + 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; +} + +const struct amd_ip_funcs cik_sdma_ip_funcs = { + .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, + .print_status = cik_sdma_print_status, + .set_clockgating_state = cik_sdma_set_clockgating_state, + .set_powergating_state = cik_sdma_set_powergating_state, +}; + +/** + * cik_sdma_ring_is_lockup - Check if the DMA engine is locked up + * + * @ring: amdgpu_ring structure holding ring information + * + * Check if the async DMA engine is locked up (CIK). + * Returns true if the engine appears to be locked up, false if not. + */ +static bool cik_sdma_ring_is_lockup(struct amdgpu_ring *ring) +{ + + if (cik_sdma_is_idle(ring->adev)) { + amdgpu_ring_lockup_update(ring); + return false; + } + return amdgpu_ring_test_lockup(ring); +} + +static const struct amdgpu_ring_funcs cik_sdma_ring_funcs = { + .get_rptr = cik_sdma_ring_get_rptr, + .get_wptr = cik_sdma_ring_get_wptr, + .set_wptr = cik_sdma_ring_set_wptr, + .parse_cs = NULL, + .emit_ib = cik_sdma_ring_emit_ib, + .emit_fence = cik_sdma_ring_emit_fence, + .emit_semaphore = cik_sdma_ring_emit_semaphore, + .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, + .is_lockup = cik_sdma_ring_is_lockup, +}; + +static void cik_sdma_set_ring_funcs(struct amdgpu_device *adev) +{ + adev->sdma[0].ring.funcs = &cik_sdma_ring_funcs; + adev->sdma[1].ring.funcs = &cik_sdma_ring_funcs; +} + +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 + * + * @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 (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_ring *ring, + uint64_t src_offset, + uint64_t dst_offset, + uint32_t byte_count) +{ + amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_COPY, SDMA_COPY_SUB_OPCODE_LINEAR, 0)); + amdgpu_ring_write(ring, byte_count); + amdgpu_ring_write(ring, 0); /* src/dst endian swap */ + amdgpu_ring_write(ring, lower_32_bits(src_offset)); + amdgpu_ring_write(ring, upper_32_bits(src_offset)); + amdgpu_ring_write(ring, lower_32_bits(dst_offset)); + amdgpu_ring_write(ring, upper_32_bits(dst_offset)); +} + +/** + * cik_sdma_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 (CIK). + */ +static void cik_sdma_emit_fill_buffer(struct amdgpu_ring *ring, + uint32_t src_data, + uint64_t dst_offset, + uint32_t byte_count) +{ + amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_CONSTANT_FILL, 0, 0)); + amdgpu_ring_write(ring, lower_32_bits(dst_offset)); + amdgpu_ring_write(ring, upper_32_bits(dst_offset)); + amdgpu_ring_write(ring, src_data); + amdgpu_ring_write(ring, 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) +{ + if (adev->mman.buffer_funcs == NULL) { + adev->mman.buffer_funcs = &cik_sdma_buffer_funcs; + adev->mman.buffer_funcs_ring = &adev->sdma[0].ring; + } +} + +static const struct amdgpu_vm_pte_funcs cik_sdma_vm_pte_funcs = { + .copy_pte = cik_sdma_vm_copy_pte, + .write_pte = cik_sdma_vm_write_pte, + .set_pte_pde = cik_sdma_vm_set_pte_pde, + .pad_ib = cik_sdma_vm_pad_ib, +}; + +static void cik_sdma_set_vm_pte_funcs(struct amdgpu_device *adev) +{ + if (adev->vm_manager.vm_pte_funcs == NULL) { + adev->vm_manager.vm_pte_funcs = &cik_sdma_vm_pte_funcs; + adev->vm_manager.vm_pte_funcs_ring = &adev->sdma[0].ring; + } +} |