trinity_smc.o ni_dpm.o si_smc.o si_dpm.o kv_smc.o kv_dpm.o ci_smc.o \
ci_dpm.o
+# add async DMA block
+radeon-y += \
+ r600_dma.o \
+ rv770_dma.o \
+ evergreen_dma.o \
+ ni_dma.o \
+ si_dma.o \
+ cik_sdma.o \
+
# add UVD block
radeon-y += \
radeon_uvd.o \
extern void si_vram_gtt_location(struct radeon_device *rdev, struct radeon_mc *mc);
extern void si_rlc_reset(struct radeon_device *rdev);
extern void si_init_uvd_internal_cg(struct radeon_device *rdev);
+extern int cik_sdma_resume(struct radeon_device *rdev);
+extern void cik_sdma_enable(struct radeon_device *rdev, bool enable);
+extern void cik_sdma_fini(struct radeon_device *rdev);
+extern void cik_sdma_vm_set_page(struct radeon_device *rdev,
+ struct radeon_ib *ib,
+ uint64_t pe,
+ uint64_t addr, unsigned count,
+ uint32_t incr, uint32_t flags);
static void cik_rlc_stop(struct radeon_device *rdev);
static void cik_pcie_gen3_enable(struct radeon_device *rdev);
static void cik_program_aspm(struct radeon_device *rdev);
return 0;
}
-/*
- * 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_ring_ib_execute - Schedule an IB on the DMA engine
- *
- * @rdev: radeon_device pointer
- * @ib: IB object to schedule
- *
- * Schedule an IB in the DMA ring (CIK).
- */
-void cik_sdma_ring_ib_execute(struct radeon_device *rdev,
- struct radeon_ib *ib)
-{
- struct radeon_ring *ring = &rdev->ring[ib->ring];
- u32 extra_bits = (ib->vm ? ib->vm->id : 0) & 0xf;
-
- if (rdev->wb.enabled) {
- u32 next_rptr = ring->wptr + 5;
- while ((next_rptr & 7) != 4)
- next_rptr++;
- next_rptr += 4;
- radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_WRITE, SDMA_WRITE_SUB_OPCODE_LINEAR, 0));
- radeon_ring_write(ring, ring->next_rptr_gpu_addr & 0xfffffffc);
- radeon_ring_write(ring, upper_32_bits(ring->next_rptr_gpu_addr) & 0xffffffff);
- radeon_ring_write(ring, 1); /* number of DWs to follow */
- radeon_ring_write(ring, next_rptr);
- }
-
- /* IB packet must end on a 8 DW boundary */
- while ((ring->wptr & 7) != 4)
- radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_NOP, 0, 0));
- radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_INDIRECT_BUFFER, 0, extra_bits));
- radeon_ring_write(ring, ib->gpu_addr & 0xffffffe0); /* base must be 32 byte aligned */
- radeon_ring_write(ring, upper_32_bits(ib->gpu_addr) & 0xffffffff);
- radeon_ring_write(ring, ib->length_dw);
-
-}
-
-/**
- * cik_sdma_fence_ring_emit - emit a fence on the DMA ring
- *
- * @rdev: radeon_device pointer
- * @fence: radeon 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).
- */
-void cik_sdma_fence_ring_emit(struct radeon_device *rdev,
- struct radeon_fence *fence)
-{
- struct radeon_ring *ring = &rdev->ring[fence->ring];
- u64 addr = rdev->fence_drv[fence->ring].gpu_addr;
- u32 extra_bits = (SDMA_POLL_REG_MEM_EXTRA_OP(1) |
- SDMA_POLL_REG_MEM_EXTRA_FUNC(3)); /* == */
- u32 ref_and_mask;
-
- if (fence->ring == R600_RING_TYPE_DMA_INDEX)
- ref_and_mask = SDMA0;
- else
- ref_and_mask = SDMA1;
-
- /* write the fence */
- radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_FENCE, 0, 0));
- radeon_ring_write(ring, addr & 0xffffffff);
- radeon_ring_write(ring, upper_32_bits(addr) & 0xffffffff);
- radeon_ring_write(ring, fence->seq);
- /* generate an interrupt */
- radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_TRAP, 0, 0));
- /* flush HDP */
- radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_POLL_REG_MEM, 0, extra_bits));
- radeon_ring_write(ring, GPU_HDP_FLUSH_DONE);
- radeon_ring_write(ring, GPU_HDP_FLUSH_REQ);
- radeon_ring_write(ring, ref_and_mask); /* REFERENCE */
- radeon_ring_write(ring, ref_and_mask); /* MASK */
- radeon_ring_write(ring, (4 << 16) | 10); /* RETRY_COUNT, POLL_INTERVAL */
-}
-
-/**
- * cik_sdma_semaphore_ring_emit - emit a semaphore on the dma ring
- *
- * @rdev: radeon_device pointer
- * @ring: radeon_ring structure holding ring information
- * @semaphore: radeon semaphore object
- * @emit_wait: wait or signal semaphore
- *
- * Add a DMA semaphore packet to the ring wait on or signal
- * other rings (CIK).
- */
-void cik_sdma_semaphore_ring_emit(struct radeon_device *rdev,
- struct radeon_ring *ring,
- struct radeon_semaphore *semaphore,
- bool emit_wait)
-{
- u64 addr = semaphore->gpu_addr;
- u32 extra_bits = emit_wait ? 0 : SDMA_SEMAPHORE_EXTRA_S;
-
- radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SEMAPHORE, 0, extra_bits));
- radeon_ring_write(ring, addr & 0xfffffff8);
- radeon_ring_write(ring, upper_32_bits(addr) & 0xffffffff);
-}
-
-/**
- * cik_sdma_gfx_stop - stop the gfx async dma engines
- *
- * @rdev: radeon_device pointer
- *
- * Stop the gfx async dma ring buffers (CIK).
- */
-static void cik_sdma_gfx_stop(struct radeon_device *rdev)
-{
- u32 rb_cntl, reg_offset;
- int i;
-
- radeon_ttm_set_active_vram_size(rdev, rdev->mc.visible_vram_size);
-
- for (i = 0; i < 2; i++) {
- if (i == 0)
- reg_offset = SDMA0_REGISTER_OFFSET;
- else
- reg_offset = SDMA1_REGISTER_OFFSET;
- rb_cntl = RREG32(SDMA0_GFX_RB_CNTL + reg_offset);
- rb_cntl &= ~SDMA_RB_ENABLE;
- WREG32(SDMA0_GFX_RB_CNTL + reg_offset, rb_cntl);
- WREG32(SDMA0_GFX_IB_CNTL + reg_offset, 0);
- }
-}
-
-/**
- * cik_sdma_rlc_stop - stop the compute async dma engines
- *
- * @rdev: radeon_device pointer
- *
- * Stop the compute async dma queues (CIK).
- */
-static void cik_sdma_rlc_stop(struct radeon_device *rdev)
-{
- /* XXX todo */
-}
-
-/**
- * cik_sdma_enable - stop the async dma engines
- *
- * @rdev: radeon_device pointer
- * @enable: enable/disable the DMA MEs.
- *
- * Halt or unhalt the async dma engines (CIK).
- */
-static void cik_sdma_enable(struct radeon_device *rdev, bool enable)
-{
- u32 me_cntl, reg_offset;
- int i;
-
- for (i = 0; i < 2; i++) {
- if (i == 0)
- reg_offset = SDMA0_REGISTER_OFFSET;
- else
- reg_offset = SDMA1_REGISTER_OFFSET;
- me_cntl = RREG32(SDMA0_ME_CNTL + reg_offset);
- if (enable)
- me_cntl &= ~SDMA_HALT;
- else
- me_cntl |= SDMA_HALT;
- WREG32(SDMA0_ME_CNTL + reg_offset, me_cntl);
- }
-}
-
-/**
- * cik_sdma_gfx_resume - setup and start the async dma engines
- *
- * @rdev: radeon_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 radeon_device *rdev)
-{
- struct radeon_ring *ring;
- u32 rb_cntl, ib_cntl;
- u32 rb_bufsz;
- u32 reg_offset, wb_offset;
- int i, r;
-
- for (i = 0; i < 2; i++) {
- if (i == 0) {
- ring = &rdev->ring[R600_RING_TYPE_DMA_INDEX];
- reg_offset = SDMA0_REGISTER_OFFSET;
- wb_offset = R600_WB_DMA_RPTR_OFFSET;
- } else {
- ring = &rdev->ring[CAYMAN_RING_TYPE_DMA1_INDEX];
- reg_offset = SDMA1_REGISTER_OFFSET;
- wb_offset = CAYMAN_WB_DMA1_RPTR_OFFSET;
- }
-
- WREG32(SDMA0_SEM_INCOMPLETE_TIMER_CNTL + reg_offset, 0);
- WREG32(SDMA0_SEM_WAIT_FAIL_TIMER_CNTL + reg_offset, 0);
-
- /* Set ring buffer size in dwords */
- rb_bufsz = drm_order(ring->ring_size / 4);
- rb_cntl = rb_bufsz << 1;
-#ifdef __BIG_ENDIAN
- rb_cntl |= SDMA_RB_SWAP_ENABLE | SDMA_RPTR_WRITEBACK_SWAP_ENABLE;
-#endif
- WREG32(SDMA0_GFX_RB_CNTL + reg_offset, rb_cntl);
-
- /* Initialize the ring buffer's read and write pointers */
- WREG32(SDMA0_GFX_RB_RPTR + reg_offset, 0);
- WREG32(SDMA0_GFX_RB_WPTR + reg_offset, 0);
-
- /* set the wb address whether it's enabled or not */
- WREG32(SDMA0_GFX_RB_RPTR_ADDR_HI + reg_offset,
- upper_32_bits(rdev->wb.gpu_addr + wb_offset) & 0xFFFFFFFF);
- WREG32(SDMA0_GFX_RB_RPTR_ADDR_LO + reg_offset,
- ((rdev->wb.gpu_addr + wb_offset) & 0xFFFFFFFC));
-
- if (rdev->wb.enabled)
- rb_cntl |= SDMA_RPTR_WRITEBACK_ENABLE;
-
- WREG32(SDMA0_GFX_RB_BASE + reg_offset, ring->gpu_addr >> 8);
- WREG32(SDMA0_GFX_RB_BASE_HI + reg_offset, ring->gpu_addr >> 40);
-
- ring->wptr = 0;
- WREG32(SDMA0_GFX_RB_WPTR + reg_offset, ring->wptr << 2);
-
- ring->rptr = RREG32(SDMA0_GFX_RB_RPTR + reg_offset) >> 2;
-
- /* enable DMA RB */
- WREG32(SDMA0_GFX_RB_CNTL + reg_offset, rb_cntl | SDMA_RB_ENABLE);
-
- ib_cntl = SDMA_IB_ENABLE;
-#ifdef __BIG_ENDIAN
- ib_cntl |= SDMA_IB_SWAP_ENABLE;
-#endif
- /* enable DMA IBs */
- WREG32(SDMA0_GFX_IB_CNTL + reg_offset, ib_cntl);
-
- ring->ready = true;
-
- r = radeon_ring_test(rdev, ring->idx, ring);
- if (r) {
- ring->ready = false;
- return r;
- }
- }
-
- radeon_ttm_set_active_vram_size(rdev, rdev->mc.real_vram_size);
-
- return 0;
-}
-
-/**
- * cik_sdma_rlc_resume - setup and start the async dma engines
- *
- * @rdev: radeon_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 radeon_device *rdev)
-{
- /* XXX todo */
- return 0;
-}
-
-/**
- * cik_sdma_load_microcode - load the sDMA ME ucode
- *
- * @rdev: radeon_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 radeon_device *rdev)
-{
- const __be32 *fw_data;
- int i;
-
- if (!rdev->sdma_fw)
- return -EINVAL;
-
- /* stop the gfx rings and rlc compute queues */
- cik_sdma_gfx_stop(rdev);
- cik_sdma_rlc_stop(rdev);
-
- /* halt the MEs */
- cik_sdma_enable(rdev, false);
-
- /* sdma0 */
- fw_data = (const __be32 *)rdev->sdma_fw->data;
- WREG32(SDMA0_UCODE_ADDR + SDMA0_REGISTER_OFFSET, 0);
- for (i = 0; i < CIK_SDMA_UCODE_SIZE; i++)
- WREG32(SDMA0_UCODE_DATA + SDMA0_REGISTER_OFFSET, be32_to_cpup(fw_data++));
- WREG32(SDMA0_UCODE_DATA + SDMA0_REGISTER_OFFSET, CIK_SDMA_UCODE_VERSION);
-
- /* sdma1 */
- fw_data = (const __be32 *)rdev->sdma_fw->data;
- WREG32(SDMA0_UCODE_ADDR + SDMA1_REGISTER_OFFSET, 0);
- for (i = 0; i < CIK_SDMA_UCODE_SIZE; i++)
- WREG32(SDMA0_UCODE_DATA + SDMA1_REGISTER_OFFSET, be32_to_cpup(fw_data++));
- WREG32(SDMA0_UCODE_DATA + SDMA1_REGISTER_OFFSET, CIK_SDMA_UCODE_VERSION);
-
- WREG32(SDMA0_UCODE_ADDR + SDMA0_REGISTER_OFFSET, 0);
- WREG32(SDMA0_UCODE_ADDR + SDMA1_REGISTER_OFFSET, 0);
- return 0;
-}
-
-/**
- * cik_sdma_resume - setup and start the async dma engines
- *
- * @rdev: radeon_device pointer
- *
- * Set up the DMA engines and enable them (CIK).
- * Returns 0 for success, error for failure.
- */
-static int cik_sdma_resume(struct radeon_device *rdev)
-{
- int r;
-
- /* Reset dma */
- WREG32(SRBM_SOFT_RESET, SOFT_RESET_SDMA | SOFT_RESET_SDMA1);
- RREG32(SRBM_SOFT_RESET);
- udelay(50);
- WREG32(SRBM_SOFT_RESET, 0);
- RREG32(SRBM_SOFT_RESET);
-
- r = cik_sdma_load_microcode(rdev);
- if (r)
- return r;
-
- /* unhalt the MEs */
- cik_sdma_enable(rdev, true);
-
- /* start the gfx rings and rlc compute queues */
- r = cik_sdma_gfx_resume(rdev);
- if (r)
- return r;
- r = cik_sdma_rlc_resume(rdev);
- if (r)
- return r;
-
- return 0;
-}
-
-/**
- * cik_sdma_fini - tear down the async dma engines
- *
- * @rdev: radeon_device pointer
- *
- * Stop the async dma engines and free the rings (CIK).
- */
-static void cik_sdma_fini(struct radeon_device *rdev)
-{
- /* stop the gfx rings and rlc compute queues */
- cik_sdma_gfx_stop(rdev);
- cik_sdma_rlc_stop(rdev);
- /* halt the MEs */
- cik_sdma_enable(rdev, false);
- radeon_ring_fini(rdev, &rdev->ring[R600_RING_TYPE_DMA_INDEX]);
- radeon_ring_fini(rdev, &rdev->ring[CAYMAN_RING_TYPE_DMA1_INDEX]);
- /* XXX - compute dma queue tear down */
-}
-
-/**
- * cik_copy_dma - copy pages using the DMA engine
- *
- * @rdev: radeon_device pointer
- * @src_offset: src GPU address
- * @dst_offset: dst GPU address
- * @num_gpu_pages: number of GPU pages to xfer
- * @fence: radeon fence object
- *
- * Copy GPU paging using the DMA engine (CIK).
- * Used by the radeon ttm implementation to move pages if
- * registered as the asic copy callback.
- */
-int cik_copy_dma(struct radeon_device *rdev,
- uint64_t src_offset, uint64_t dst_offset,
- unsigned num_gpu_pages,
- struct radeon_fence **fence)
-{
- struct radeon_semaphore *sem = NULL;
- int ring_index = rdev->asic->copy.dma_ring_index;
- struct radeon_ring *ring = &rdev->ring[ring_index];
- u32 size_in_bytes, cur_size_in_bytes;
- int i, num_loops;
- int r = 0;
-
- r = radeon_semaphore_create(rdev, &sem);
- if (r) {
- DRM_ERROR("radeon: moving bo (%d).\n", r);
- return r;
- }
-
- size_in_bytes = (num_gpu_pages << RADEON_GPU_PAGE_SHIFT);
- num_loops = DIV_ROUND_UP(size_in_bytes, 0x1fffff);
- r = radeon_ring_lock(rdev, ring, num_loops * 7 + 14);
- if (r) {
- DRM_ERROR("radeon: moving bo (%d).\n", r);
- radeon_semaphore_free(rdev, &sem, NULL);
- return r;
- }
-
- if (radeon_fence_need_sync(*fence, ring->idx)) {
- radeon_semaphore_sync_rings(rdev, sem, (*fence)->ring,
- ring->idx);
- radeon_fence_note_sync(*fence, ring->idx);
- } else {
- radeon_semaphore_free(rdev, &sem, NULL);
- }
-
- for (i = 0; i < num_loops; i++) {
- cur_size_in_bytes = size_in_bytes;
- if (cur_size_in_bytes > 0x1fffff)
- cur_size_in_bytes = 0x1fffff;
- size_in_bytes -= cur_size_in_bytes;
- radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_COPY, SDMA_COPY_SUB_OPCODE_LINEAR, 0));
- radeon_ring_write(ring, cur_size_in_bytes);
- radeon_ring_write(ring, 0); /* src/dst endian swap */
- radeon_ring_write(ring, src_offset & 0xffffffff);
- radeon_ring_write(ring, upper_32_bits(src_offset) & 0xffffffff);
- radeon_ring_write(ring, dst_offset & 0xfffffffc);
- radeon_ring_write(ring, upper_32_bits(dst_offset) & 0xffffffff);
- src_offset += cur_size_in_bytes;
- dst_offset += cur_size_in_bytes;
- }
-
- r = radeon_fence_emit(rdev, fence, ring->idx);
- if (r) {
- radeon_ring_unlock_undo(rdev, ring);
- return r;
- }
-
- radeon_ring_unlock_commit(rdev, ring);
- radeon_semaphore_free(rdev, &sem, *fence);
-
- return r;
-}
-
-/**
- * cik_sdma_ring_test - simple async dma engine test
- *
- * @rdev: radeon_device pointer
- * @ring: radeon_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.
- */
-int cik_sdma_ring_test(struct radeon_device *rdev,
- struct radeon_ring *ring)
-{
- unsigned i;
- int r;
- void __iomem *ptr = (void *)rdev->vram_scratch.ptr;
- u32 tmp;
-
- if (!ptr) {
- DRM_ERROR("invalid vram scratch pointer\n");
- return -EINVAL;
- }
-
- tmp = 0xCAFEDEAD;
- writel(tmp, ptr);
-
- r = radeon_ring_lock(rdev, ring, 4);
- if (r) {
- DRM_ERROR("radeon: dma failed to lock ring %d (%d).\n", ring->idx, r);
- return r;
- }
- radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_WRITE, SDMA_WRITE_SUB_OPCODE_LINEAR, 0));
- radeon_ring_write(ring, rdev->vram_scratch.gpu_addr & 0xfffffffc);
- radeon_ring_write(ring, upper_32_bits(rdev->vram_scratch.gpu_addr) & 0xffffffff);
- radeon_ring_write(ring, 1); /* number of DWs to follow */
- radeon_ring_write(ring, 0xDEADBEEF);
- radeon_ring_unlock_commit(rdev, ring);
-
- for (i = 0; i < rdev->usec_timeout; i++) {
- tmp = readl(ptr);
- if (tmp == 0xDEADBEEF)
- break;
- DRM_UDELAY(1);
- }
-
- if (i < rdev->usec_timeout) {
- DRM_INFO("ring test on %d succeeded in %d usecs\n", ring->idx, i);
- } else {
- DRM_ERROR("radeon: ring %d test failed (0x%08X)\n",
- ring->idx, tmp);
- r = -EINVAL;
- }
- return r;
-}
-
-/**
- * cik_sdma_ib_test - test an IB on the DMA engine
- *
- * @rdev: radeon_device pointer
- * @ring: radeon_ring structure holding ring information
- *
- * Test a simple IB in the DMA ring (CIK).
- * Returns 0 on success, error on failure.
- */
-int cik_sdma_ib_test(struct radeon_device *rdev, struct radeon_ring *ring)
-{
- struct radeon_ib ib;
- unsigned i;
- int r;
- void __iomem *ptr = (void *)rdev->vram_scratch.ptr;
- u32 tmp = 0;
-
- if (!ptr) {
- DRM_ERROR("invalid vram scratch pointer\n");
- return -EINVAL;
- }
-
- tmp = 0xCAFEDEAD;
- writel(tmp, ptr);
-
- r = radeon_ib_get(rdev, ring->idx, &ib, NULL, 256);
- if (r) {
- DRM_ERROR("radeon: 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] = rdev->vram_scratch.gpu_addr & 0xfffffffc;
- ib.ptr[2] = upper_32_bits(rdev->vram_scratch.gpu_addr) & 0xffffffff;
- ib.ptr[3] = 1;
- ib.ptr[4] = 0xDEADBEEF;
- ib.length_dw = 5;
-
- r = radeon_ib_schedule(rdev, &ib, NULL);
- if (r) {
- radeon_ib_free(rdev, &ib);
- DRM_ERROR("radeon: failed to schedule ib (%d).\n", r);
- return r;
- }
- r = radeon_fence_wait(ib.fence, false);
- if (r) {
- DRM_ERROR("radeon: fence wait failed (%d).\n", r);
- return r;
- }
- for (i = 0; i < rdev->usec_timeout; i++) {
- tmp = readl(ptr);
- if (tmp == 0xDEADBEEF)
- break;
- DRM_UDELAY(1);
- }
- if (i < rdev->usec_timeout) {
- DRM_INFO("ib test on ring %d succeeded in %u usecs\n", ib.fence->ring, i);
- } else {
- DRM_ERROR("radeon: ib test failed (0x%08X)\n", tmp);
- r = -EINVAL;
- }
- radeon_ib_free(rdev, &ib);
- return r;
-}
-
-
static void cik_print_gpu_status_regs(struct radeon_device *rdev)
{
dev_info(rdev->dev, " GRBM_STATUS=0x%08X\n",
* mask to be used by cik_gpu_soft_reset().
* Returns a mask of the blocks to be reset.
*/
-static u32 cik_gpu_check_soft_reset(struct radeon_device *rdev)
+u32 cik_gpu_check_soft_reset(struct radeon_device *rdev)
{
u32 reset_mask = 0;
u32 tmp;
return radeon_ring_test_lockup(rdev, ring);
}
-/**
- * cik_sdma_is_lockup - Check if the DMA engine is locked up
- *
- * @rdev: radeon_device pointer
- * @ring: radeon_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.
- */
-bool cik_sdma_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
-{
- u32 reset_mask = cik_gpu_check_soft_reset(rdev);
- u32 mask;
-
- if (ring->idx == R600_RING_TYPE_DMA_INDEX)
- mask = RADEON_RESET_DMA;
- else
- mask = RADEON_RESET_DMA1;
-
- if (!(reset_mask & mask)) {
- radeon_ring_lockup_update(ring);
- return false;
- }
- /* force ring activities */
- radeon_ring_force_activity(rdev, ring);
- return radeon_ring_test_lockup(rdev, ring);
-}
-
/* MC */
/**
* cik_mc_program - program the GPU memory controller
}
} else {
/* DMA */
- if (flags & RADEON_VM_PAGE_SYSTEM) {
- 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 & RADEON_VM_PAGE_SYSTEM) {
- value = radeon_vm_map_gart(rdev, addr);
- value &= 0xFFFFFFFFFFFFF000ULL;
- } else if (flags & RADEON_VM_PAGE_VALID) {
- value = addr;
- } else {
- value = 0;
- }
- addr += incr;
- value |= r600_flags;
- ib->ptr[ib->length_dw++] = value;
- ib->ptr[ib->length_dw++] = upper_32_bits(value);
- }
- }
- } else {
- while (count) {
- ndw = count;
- if (ndw > 0x7FFFF)
- ndw = 0x7FFFF;
-
- if (flags & RADEON_VM_PAGE_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++] = r600_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;
- }
- }
- while (ib->length_dw & 0x7)
- ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_NOP, 0, 0);
- }
-}
-
-/**
- * cik_dma_vm_flush - cik vm flush using sDMA
- *
- * @rdev: radeon_device pointer
- *
- * Update the page table base and flush the VM TLB
- * using sDMA (CIK).
- */
-void cik_dma_vm_flush(struct radeon_device *rdev, int ridx, struct radeon_vm *vm)
-{
- struct radeon_ring *ring = &rdev->ring[ridx];
- u32 extra_bits = (SDMA_POLL_REG_MEM_EXTRA_OP(1) |
- SDMA_POLL_REG_MEM_EXTRA_FUNC(3)); /* == */
- u32 ref_and_mask;
-
- if (vm == NULL)
- return;
-
- if (ridx == R600_RING_TYPE_DMA_INDEX)
- ref_and_mask = SDMA0;
- else
- ref_and_mask = SDMA1;
-
- radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000));
- if (vm->id < 8) {
- radeon_ring_write(ring, (VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + (vm->id << 2)) >> 2);
- } else {
- radeon_ring_write(ring, (VM_CONTEXT8_PAGE_TABLE_BASE_ADDR + ((vm->id - 8) << 2)) >> 2);
+ cik_sdma_vm_set_page(rdev, ib, pe, addr, count, incr, flags);
}
- radeon_ring_write(ring, vm->pd_gpu_addr >> 12);
-
- /* update SH_MEM_* regs */
- radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000));
- radeon_ring_write(ring, SRBM_GFX_CNTL >> 2);
- radeon_ring_write(ring, VMID(vm->id));
-
- radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000));
- radeon_ring_write(ring, SH_MEM_BASES >> 2);
- radeon_ring_write(ring, 0);
-
- radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000));
- radeon_ring_write(ring, SH_MEM_CONFIG >> 2);
- radeon_ring_write(ring, 0);
-
- radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000));
- radeon_ring_write(ring, SH_MEM_APE1_BASE >> 2);
- radeon_ring_write(ring, 1);
-
- radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000));
- radeon_ring_write(ring, SH_MEM_APE1_LIMIT >> 2);
- radeon_ring_write(ring, 0);
-
- radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000));
- radeon_ring_write(ring, SRBM_GFX_CNTL >> 2);
- radeon_ring_write(ring, VMID(0));
-
- /* flush HDP */
- radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_POLL_REG_MEM, 0, extra_bits));
- radeon_ring_write(ring, GPU_HDP_FLUSH_DONE);
- radeon_ring_write(ring, GPU_HDP_FLUSH_REQ);
- radeon_ring_write(ring, ref_and_mask); /* REFERENCE */
- radeon_ring_write(ring, ref_and_mask); /* MASK */
- radeon_ring_write(ring, (4 << 16) | 10); /* RETRY_COUNT, POLL_INTERVAL */
-
- /* flush TLB */
- radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000));
- radeon_ring_write(ring, VM_INVALIDATE_REQUEST >> 2);
- radeon_ring_write(ring, 1 << vm->id);
}
/*
--- /dev/null
+/*
+ * 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 "radeon.h"
+#include "radeon_asic.h"
+#include "cikd.h"
+
+/* sdma */
+#define CIK_SDMA_UCODE_SIZE 1050
+#define CIK_SDMA_UCODE_VERSION 64
+
+u32 cik_gpu_check_soft_reset(struct radeon_device *rdev);
+
+/*
+ * 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_ring_ib_execute - Schedule an IB on the DMA engine
+ *
+ * @rdev: radeon_device pointer
+ * @ib: IB object to schedule
+ *
+ * Schedule an IB in the DMA ring (CIK).
+ */
+void cik_sdma_ring_ib_execute(struct radeon_device *rdev,
+ struct radeon_ib *ib)
+{
+ struct radeon_ring *ring = &rdev->ring[ib->ring];
+ u32 extra_bits = (ib->vm ? ib->vm->id : 0) & 0xf;
+
+ if (rdev->wb.enabled) {
+ u32 next_rptr = ring->wptr + 5;
+ while ((next_rptr & 7) != 4)
+ next_rptr++;
+ next_rptr += 4;
+ radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_WRITE, SDMA_WRITE_SUB_OPCODE_LINEAR, 0));
+ radeon_ring_write(ring, ring->next_rptr_gpu_addr & 0xfffffffc);
+ radeon_ring_write(ring, upper_32_bits(ring->next_rptr_gpu_addr) & 0xffffffff);
+ radeon_ring_write(ring, 1); /* number of DWs to follow */
+ radeon_ring_write(ring, next_rptr);
+ }
+
+ /* IB packet must end on a 8 DW boundary */
+ while ((ring->wptr & 7) != 4)
+ radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_NOP, 0, 0));
+ radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_INDIRECT_BUFFER, 0, extra_bits));
+ radeon_ring_write(ring, ib->gpu_addr & 0xffffffe0); /* base must be 32 byte aligned */
+ radeon_ring_write(ring, upper_32_bits(ib->gpu_addr) & 0xffffffff);
+ radeon_ring_write(ring, ib->length_dw);
+
+}
+
+/**
+ * cik_sdma_fence_ring_emit - emit a fence on the DMA ring
+ *
+ * @rdev: radeon_device pointer
+ * @fence: radeon 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).
+ */
+void cik_sdma_fence_ring_emit(struct radeon_device *rdev,
+ struct radeon_fence *fence)
+{
+ struct radeon_ring *ring = &rdev->ring[fence->ring];
+ u64 addr = rdev->fence_drv[fence->ring].gpu_addr;
+ u32 extra_bits = (SDMA_POLL_REG_MEM_EXTRA_OP(1) |
+ SDMA_POLL_REG_MEM_EXTRA_FUNC(3)); /* == */
+ u32 ref_and_mask;
+
+ if (fence->ring == R600_RING_TYPE_DMA_INDEX)
+ ref_and_mask = SDMA0;
+ else
+ ref_and_mask = SDMA1;
+
+ /* write the fence */
+ radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_FENCE, 0, 0));
+ radeon_ring_write(ring, addr & 0xffffffff);
+ radeon_ring_write(ring, upper_32_bits(addr) & 0xffffffff);
+ radeon_ring_write(ring, fence->seq);
+ /* generate an interrupt */
+ radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_TRAP, 0, 0));
+ /* flush HDP */
+ radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_POLL_REG_MEM, 0, extra_bits));
+ radeon_ring_write(ring, GPU_HDP_FLUSH_DONE);
+ radeon_ring_write(ring, GPU_HDP_FLUSH_REQ);
+ radeon_ring_write(ring, ref_and_mask); /* REFERENCE */
+ radeon_ring_write(ring, ref_and_mask); /* MASK */
+ radeon_ring_write(ring, (4 << 16) | 10); /* RETRY_COUNT, POLL_INTERVAL */
+}
+
+/**
+ * cik_sdma_semaphore_ring_emit - emit a semaphore on the dma ring
+ *
+ * @rdev: radeon_device pointer
+ * @ring: radeon_ring structure holding ring information
+ * @semaphore: radeon semaphore object
+ * @emit_wait: wait or signal semaphore
+ *
+ * Add a DMA semaphore packet to the ring wait on or signal
+ * other rings (CIK).
+ */
+void cik_sdma_semaphore_ring_emit(struct radeon_device *rdev,
+ struct radeon_ring *ring,
+ struct radeon_semaphore *semaphore,
+ bool emit_wait)
+{
+ u64 addr = semaphore->gpu_addr;
+ u32 extra_bits = emit_wait ? 0 : SDMA_SEMAPHORE_EXTRA_S;
+
+ radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SEMAPHORE, 0, extra_bits));
+ radeon_ring_write(ring, addr & 0xfffffff8);
+ radeon_ring_write(ring, upper_32_bits(addr) & 0xffffffff);
+}
+
+/**
+ * cik_sdma_gfx_stop - stop the gfx async dma engines
+ *
+ * @rdev: radeon_device pointer
+ *
+ * Stop the gfx async dma ring buffers (CIK).
+ */
+static void cik_sdma_gfx_stop(struct radeon_device *rdev)
+{
+ u32 rb_cntl, reg_offset;
+ int i;
+
+ radeon_ttm_set_active_vram_size(rdev, rdev->mc.visible_vram_size);
+
+ for (i = 0; i < 2; i++) {
+ if (i == 0)
+ reg_offset = SDMA0_REGISTER_OFFSET;
+ else
+ reg_offset = SDMA1_REGISTER_OFFSET;
+ rb_cntl = RREG32(SDMA0_GFX_RB_CNTL + reg_offset);
+ rb_cntl &= ~SDMA_RB_ENABLE;
+ WREG32(SDMA0_GFX_RB_CNTL + reg_offset, rb_cntl);
+ WREG32(SDMA0_GFX_IB_CNTL + reg_offset, 0);
+ }
+}
+
+/**
+ * cik_sdma_rlc_stop - stop the compute async dma engines
+ *
+ * @rdev: radeon_device pointer
+ *
+ * Stop the compute async dma queues (CIK).
+ */
+static void cik_sdma_rlc_stop(struct radeon_device *rdev)
+{
+ /* XXX todo */
+}
+
+/**
+ * cik_sdma_enable - stop the async dma engines
+ *
+ * @rdev: radeon_device pointer
+ * @enable: enable/disable the DMA MEs.
+ *
+ * Halt or unhalt the async dma engines (CIK).
+ */
+void cik_sdma_enable(struct radeon_device *rdev, bool enable)
+{
+ u32 me_cntl, reg_offset;
+ int i;
+
+ for (i = 0; i < 2; i++) {
+ if (i == 0)
+ reg_offset = SDMA0_REGISTER_OFFSET;
+ else
+ reg_offset = SDMA1_REGISTER_OFFSET;
+ me_cntl = RREG32(SDMA0_ME_CNTL + reg_offset);
+ if (enable)
+ me_cntl &= ~SDMA_HALT;
+ else
+ me_cntl |= SDMA_HALT;
+ WREG32(SDMA0_ME_CNTL + reg_offset, me_cntl);
+ }
+}
+
+/**
+ * cik_sdma_gfx_resume - setup and start the async dma engines
+ *
+ * @rdev: radeon_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 radeon_device *rdev)
+{
+ struct radeon_ring *ring;
+ u32 rb_cntl, ib_cntl;
+ u32 rb_bufsz;
+ u32 reg_offset, wb_offset;
+ int i, r;
+
+ for (i = 0; i < 2; i++) {
+ if (i == 0) {
+ ring = &rdev->ring[R600_RING_TYPE_DMA_INDEX];
+ reg_offset = SDMA0_REGISTER_OFFSET;
+ wb_offset = R600_WB_DMA_RPTR_OFFSET;
+ } else {
+ ring = &rdev->ring[CAYMAN_RING_TYPE_DMA1_INDEX];
+ reg_offset = SDMA1_REGISTER_OFFSET;
+ wb_offset = CAYMAN_WB_DMA1_RPTR_OFFSET;
+ }
+
+ WREG32(SDMA0_SEM_INCOMPLETE_TIMER_CNTL + reg_offset, 0);
+ WREG32(SDMA0_SEM_WAIT_FAIL_TIMER_CNTL + reg_offset, 0);
+
+ /* Set ring buffer size in dwords */
+ rb_bufsz = drm_order(ring->ring_size / 4);
+ rb_cntl = rb_bufsz << 1;
+#ifdef __BIG_ENDIAN
+ rb_cntl |= SDMA_RB_SWAP_ENABLE | SDMA_RPTR_WRITEBACK_SWAP_ENABLE;
+#endif
+ WREG32(SDMA0_GFX_RB_CNTL + reg_offset, rb_cntl);
+
+ /* Initialize the ring buffer's read and write pointers */
+ WREG32(SDMA0_GFX_RB_RPTR + reg_offset, 0);
+ WREG32(SDMA0_GFX_RB_WPTR + reg_offset, 0);
+
+ /* set the wb address whether it's enabled or not */
+ WREG32(SDMA0_GFX_RB_RPTR_ADDR_HI + reg_offset,
+ upper_32_bits(rdev->wb.gpu_addr + wb_offset) & 0xFFFFFFFF);
+ WREG32(SDMA0_GFX_RB_RPTR_ADDR_LO + reg_offset,
+ ((rdev->wb.gpu_addr + wb_offset) & 0xFFFFFFFC));
+
+ if (rdev->wb.enabled)
+ rb_cntl |= SDMA_RPTR_WRITEBACK_ENABLE;
+
+ WREG32(SDMA0_GFX_RB_BASE + reg_offset, ring->gpu_addr >> 8);
+ WREG32(SDMA0_GFX_RB_BASE_HI + reg_offset, ring->gpu_addr >> 40);
+
+ ring->wptr = 0;
+ WREG32(SDMA0_GFX_RB_WPTR + reg_offset, ring->wptr << 2);
+
+ ring->rptr = RREG32(SDMA0_GFX_RB_RPTR + reg_offset) >> 2;
+
+ /* enable DMA RB */
+ WREG32(SDMA0_GFX_RB_CNTL + reg_offset, rb_cntl | SDMA_RB_ENABLE);
+
+ ib_cntl = SDMA_IB_ENABLE;
+#ifdef __BIG_ENDIAN
+ ib_cntl |= SDMA_IB_SWAP_ENABLE;
+#endif
+ /* enable DMA IBs */
+ WREG32(SDMA0_GFX_IB_CNTL + reg_offset, ib_cntl);
+
+ ring->ready = true;
+
+ r = radeon_ring_test(rdev, ring->idx, ring);
+ if (r) {
+ ring->ready = false;
+ return r;
+ }
+ }
+
+ radeon_ttm_set_active_vram_size(rdev, rdev->mc.real_vram_size);
+
+ return 0;
+}
+
+/**
+ * cik_sdma_rlc_resume - setup and start the async dma engines
+ *
+ * @rdev: radeon_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 radeon_device *rdev)
+{
+ /* XXX todo */
+ return 0;
+}
+
+/**
+ * cik_sdma_load_microcode - load the sDMA ME ucode
+ *
+ * @rdev: radeon_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 radeon_device *rdev)
+{
+ const __be32 *fw_data;
+ int i;
+
+ if (!rdev->sdma_fw)
+ return -EINVAL;
+
+ /* stop the gfx rings and rlc compute queues */
+ cik_sdma_gfx_stop(rdev);
+ cik_sdma_rlc_stop(rdev);
+
+ /* halt the MEs */
+ cik_sdma_enable(rdev, false);
+
+ /* sdma0 */
+ fw_data = (const __be32 *)rdev->sdma_fw->data;
+ WREG32(SDMA0_UCODE_ADDR + SDMA0_REGISTER_OFFSET, 0);
+ for (i = 0; i < CIK_SDMA_UCODE_SIZE; i++)
+ WREG32(SDMA0_UCODE_DATA + SDMA0_REGISTER_OFFSET, be32_to_cpup(fw_data++));
+ WREG32(SDMA0_UCODE_DATA + SDMA0_REGISTER_OFFSET, CIK_SDMA_UCODE_VERSION);
+
+ /* sdma1 */
+ fw_data = (const __be32 *)rdev->sdma_fw->data;
+ WREG32(SDMA0_UCODE_ADDR + SDMA1_REGISTER_OFFSET, 0);
+ for (i = 0; i < CIK_SDMA_UCODE_SIZE; i++)
+ WREG32(SDMA0_UCODE_DATA + SDMA1_REGISTER_OFFSET, be32_to_cpup(fw_data++));
+ WREG32(SDMA0_UCODE_DATA + SDMA1_REGISTER_OFFSET, CIK_SDMA_UCODE_VERSION);
+
+ WREG32(SDMA0_UCODE_ADDR + SDMA0_REGISTER_OFFSET, 0);
+ WREG32(SDMA0_UCODE_ADDR + SDMA1_REGISTER_OFFSET, 0);
+ return 0;
+}
+
+/**
+ * cik_sdma_resume - setup and start the async dma engines
+ *
+ * @rdev: radeon_device pointer
+ *
+ * Set up the DMA engines and enable them (CIK).
+ * Returns 0 for success, error for failure.
+ */
+int cik_sdma_resume(struct radeon_device *rdev)
+{
+ int r;
+
+ /* Reset dma */
+ WREG32(SRBM_SOFT_RESET, SOFT_RESET_SDMA | SOFT_RESET_SDMA1);
+ RREG32(SRBM_SOFT_RESET);
+ udelay(50);
+ WREG32(SRBM_SOFT_RESET, 0);
+ RREG32(SRBM_SOFT_RESET);
+
+ r = cik_sdma_load_microcode(rdev);
+ if (r)
+ return r;
+
+ /* unhalt the MEs */
+ cik_sdma_enable(rdev, true);
+
+ /* start the gfx rings and rlc compute queues */
+ r = cik_sdma_gfx_resume(rdev);
+ if (r)
+ return r;
+ r = cik_sdma_rlc_resume(rdev);
+ if (r)
+ return r;
+
+ return 0;
+}
+
+/**
+ * cik_sdma_fini - tear down the async dma engines
+ *
+ * @rdev: radeon_device pointer
+ *
+ * Stop the async dma engines and free the rings (CIK).
+ */
+void cik_sdma_fini(struct radeon_device *rdev)
+{
+ /* stop the gfx rings and rlc compute queues */
+ cik_sdma_gfx_stop(rdev);
+ cik_sdma_rlc_stop(rdev);
+ /* halt the MEs */
+ cik_sdma_enable(rdev, false);
+ radeon_ring_fini(rdev, &rdev->ring[R600_RING_TYPE_DMA_INDEX]);
+ radeon_ring_fini(rdev, &rdev->ring[CAYMAN_RING_TYPE_DMA1_INDEX]);
+ /* XXX - compute dma queue tear down */
+}
+
+/**
+ * cik_copy_dma - copy pages using the DMA engine
+ *
+ * @rdev: radeon_device pointer
+ * @src_offset: src GPU address
+ * @dst_offset: dst GPU address
+ * @num_gpu_pages: number of GPU pages to xfer
+ * @fence: radeon fence object
+ *
+ * Copy GPU paging using the DMA engine (CIK).
+ * Used by the radeon ttm implementation to move pages if
+ * registered as the asic copy callback.
+ */
+int cik_copy_dma(struct radeon_device *rdev,
+ uint64_t src_offset, uint64_t dst_offset,
+ unsigned num_gpu_pages,
+ struct radeon_fence **fence)
+{
+ struct radeon_semaphore *sem = NULL;
+ int ring_index = rdev->asic->copy.dma_ring_index;
+ struct radeon_ring *ring = &rdev->ring[ring_index];
+ u32 size_in_bytes, cur_size_in_bytes;
+ int i, num_loops;
+ int r = 0;
+
+ r = radeon_semaphore_create(rdev, &sem);
+ if (r) {
+ DRM_ERROR("radeon: moving bo (%d).\n", r);
+ return r;
+ }
+
+ size_in_bytes = (num_gpu_pages << RADEON_GPU_PAGE_SHIFT);
+ num_loops = DIV_ROUND_UP(size_in_bytes, 0x1fffff);
+ r = radeon_ring_lock(rdev, ring, num_loops * 7 + 14);
+ if (r) {
+ DRM_ERROR("radeon: moving bo (%d).\n", r);
+ radeon_semaphore_free(rdev, &sem, NULL);
+ return r;
+ }
+
+ if (radeon_fence_need_sync(*fence, ring->idx)) {
+ radeon_semaphore_sync_rings(rdev, sem, (*fence)->ring,
+ ring->idx);
+ radeon_fence_note_sync(*fence, ring->idx);
+ } else {
+ radeon_semaphore_free(rdev, &sem, NULL);
+ }
+
+ for (i = 0; i < num_loops; i++) {
+ cur_size_in_bytes = size_in_bytes;
+ if (cur_size_in_bytes > 0x1fffff)
+ cur_size_in_bytes = 0x1fffff;
+ size_in_bytes -= cur_size_in_bytes;
+ radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_COPY, SDMA_COPY_SUB_OPCODE_LINEAR, 0));
+ radeon_ring_write(ring, cur_size_in_bytes);
+ radeon_ring_write(ring, 0); /* src/dst endian swap */
+ radeon_ring_write(ring, src_offset & 0xffffffff);
+ radeon_ring_write(ring, upper_32_bits(src_offset) & 0xffffffff);
+ radeon_ring_write(ring, dst_offset & 0xfffffffc);
+ radeon_ring_write(ring, upper_32_bits(dst_offset) & 0xffffffff);
+ src_offset += cur_size_in_bytes;
+ dst_offset += cur_size_in_bytes;
+ }
+
+ r = radeon_fence_emit(rdev, fence, ring->idx);
+ if (r) {
+ radeon_ring_unlock_undo(rdev, ring);
+ return r;
+ }
+
+ radeon_ring_unlock_commit(rdev, ring);
+ radeon_semaphore_free(rdev, &sem, *fence);
+
+ return r;
+}
+
+/**
+ * cik_sdma_ring_test - simple async dma engine test
+ *
+ * @rdev: radeon_device pointer
+ * @ring: radeon_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.
+ */
+int cik_sdma_ring_test(struct radeon_device *rdev,
+ struct radeon_ring *ring)
+{
+ unsigned i;
+ int r;
+ void __iomem *ptr = (void *)rdev->vram_scratch.ptr;
+ u32 tmp;
+
+ if (!ptr) {
+ DRM_ERROR("invalid vram scratch pointer\n");
+ return -EINVAL;
+ }
+
+ tmp = 0xCAFEDEAD;
+ writel(tmp, ptr);
+
+ r = radeon_ring_lock(rdev, ring, 4);
+ if (r) {
+ DRM_ERROR("radeon: dma failed to lock ring %d (%d).\n", ring->idx, r);
+ return r;
+ }
+ radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_WRITE, SDMA_WRITE_SUB_OPCODE_LINEAR, 0));
+ radeon_ring_write(ring, rdev->vram_scratch.gpu_addr & 0xfffffffc);
+ radeon_ring_write(ring, upper_32_bits(rdev->vram_scratch.gpu_addr) & 0xffffffff);
+ radeon_ring_write(ring, 1); /* number of DWs to follow */
+ radeon_ring_write(ring, 0xDEADBEEF);
+ radeon_ring_unlock_commit(rdev, ring);
+
+ for (i = 0; i < rdev->usec_timeout; i++) {
+ tmp = readl(ptr);
+ if (tmp == 0xDEADBEEF)
+ break;
+ DRM_UDELAY(1);
+ }
+
+ if (i < rdev->usec_timeout) {
+ DRM_INFO("ring test on %d succeeded in %d usecs\n", ring->idx, i);
+ } else {
+ DRM_ERROR("radeon: ring %d test failed (0x%08X)\n",
+ ring->idx, tmp);
+ r = -EINVAL;
+ }
+ return r;
+}
+
+/**
+ * cik_sdma_ib_test - test an IB on the DMA engine
+ *
+ * @rdev: radeon_device pointer
+ * @ring: radeon_ring structure holding ring information
+ *
+ * Test a simple IB in the DMA ring (CIK).
+ * Returns 0 on success, error on failure.
+ */
+int cik_sdma_ib_test(struct radeon_device *rdev, struct radeon_ring *ring)
+{
+ struct radeon_ib ib;
+ unsigned i;
+ int r;
+ void __iomem *ptr = (void *)rdev->vram_scratch.ptr;
+ u32 tmp = 0;
+
+ if (!ptr) {
+ DRM_ERROR("invalid vram scratch pointer\n");
+ return -EINVAL;
+ }
+
+ tmp = 0xCAFEDEAD;
+ writel(tmp, ptr);
+
+ r = radeon_ib_get(rdev, ring->idx, &ib, NULL, 256);
+ if (r) {
+ DRM_ERROR("radeon: 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] = rdev->vram_scratch.gpu_addr & 0xfffffffc;
+ ib.ptr[2] = upper_32_bits(rdev->vram_scratch.gpu_addr) & 0xffffffff;
+ ib.ptr[3] = 1;
+ ib.ptr[4] = 0xDEADBEEF;
+ ib.length_dw = 5;
+
+ r = radeon_ib_schedule(rdev, &ib, NULL);
+ if (r) {
+ radeon_ib_free(rdev, &ib);
+ DRM_ERROR("radeon: failed to schedule ib (%d).\n", r);
+ return r;
+ }
+ r = radeon_fence_wait(ib.fence, false);
+ if (r) {
+ DRM_ERROR("radeon: fence wait failed (%d).\n", r);
+ return r;
+ }
+ for (i = 0; i < rdev->usec_timeout; i++) {
+ tmp = readl(ptr);
+ if (tmp == 0xDEADBEEF)
+ break;
+ DRM_UDELAY(1);
+ }
+ if (i < rdev->usec_timeout) {
+ DRM_INFO("ib test on ring %d succeeded in %u usecs\n", ib.fence->ring, i);
+ } else {
+ DRM_ERROR("radeon: ib test failed (0x%08X)\n", tmp);
+ r = -EINVAL;
+ }
+ radeon_ib_free(rdev, &ib);
+ return r;
+}
+
+/**
+ * cik_sdma_is_lockup - Check if the DMA engine is locked up
+ *
+ * @rdev: radeon_device pointer
+ * @ring: radeon_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.
+ */
+bool cik_sdma_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
+{
+ u32 reset_mask = cik_gpu_check_soft_reset(rdev);
+ u32 mask;
+
+ if (ring->idx == R600_RING_TYPE_DMA_INDEX)
+ mask = RADEON_RESET_DMA;
+ else
+ mask = RADEON_RESET_DMA1;
+
+ if (!(reset_mask & mask)) {
+ radeon_ring_lockup_update(ring);
+ return false;
+ }
+ /* force ring activities */
+ radeon_ring_force_activity(rdev, ring);
+ return radeon_ring_test_lockup(rdev, ring);
+}
+
+/**
+ * cik_sdma_vm_set_page - update the page tables using sDMA
+ *
+ * @rdev: radeon_device pointer
+ * @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).
+ */
+void cik_sdma_vm_set_page(struct radeon_device *rdev,
+ struct radeon_ib *ib,
+ uint64_t pe,
+ uint64_t addr, unsigned count,
+ uint32_t incr, uint32_t flags)
+{
+ uint32_t r600_flags = cayman_vm_page_flags(rdev, flags);
+ uint64_t value;
+ unsigned ndw;
+
+ if (flags & RADEON_VM_PAGE_SYSTEM) {
+ 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 & RADEON_VM_PAGE_SYSTEM) {
+ value = radeon_vm_map_gart(rdev, addr);
+ value &= 0xFFFFFFFFFFFFF000ULL;
+ } else if (flags & RADEON_VM_PAGE_VALID) {
+ value = addr;
+ } else {
+ value = 0;
+ }
+ addr += incr;
+ value |= r600_flags;
+ ib->ptr[ib->length_dw++] = value;
+ ib->ptr[ib->length_dw++] = upper_32_bits(value);
+ }
+ }
+ } else {
+ while (count) {
+ ndw = count;
+ if (ndw > 0x7FFFF)
+ ndw = 0x7FFFF;
+
+ if (flags & RADEON_VM_PAGE_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++] = r600_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;
+ }
+ }
+ while (ib->length_dw & 0x7)
+ ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_NOP, 0, 0);
+}
+
+/**
+ * cik_dma_vm_flush - cik vm flush using sDMA
+ *
+ * @rdev: radeon_device pointer
+ *
+ * Update the page table base and flush the VM TLB
+ * using sDMA (CIK).
+ */
+void cik_dma_vm_flush(struct radeon_device *rdev, int ridx, struct radeon_vm *vm)
+{
+ struct radeon_ring *ring = &rdev->ring[ridx];
+ u32 extra_bits = (SDMA_POLL_REG_MEM_EXTRA_OP(1) |
+ SDMA_POLL_REG_MEM_EXTRA_FUNC(3)); /* == */
+ u32 ref_and_mask;
+
+ if (vm == NULL)
+ return;
+
+ if (ridx == R600_RING_TYPE_DMA_INDEX)
+ ref_and_mask = SDMA0;
+ else
+ ref_and_mask = SDMA1;
+
+ radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000));
+ if (vm->id < 8) {
+ radeon_ring_write(ring, (VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + (vm->id << 2)) >> 2);
+ } else {
+ radeon_ring_write(ring, (VM_CONTEXT8_PAGE_TABLE_BASE_ADDR + ((vm->id - 8) << 2)) >> 2);
+ }
+ radeon_ring_write(ring, vm->pd_gpu_addr >> 12);
+
+ /* update SH_MEM_* regs */
+ radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000));
+ radeon_ring_write(ring, SRBM_GFX_CNTL >> 2);
+ radeon_ring_write(ring, VMID(vm->id));
+
+ radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000));
+ radeon_ring_write(ring, SH_MEM_BASES >> 2);
+ radeon_ring_write(ring, 0);
+
+ radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000));
+ radeon_ring_write(ring, SH_MEM_CONFIG >> 2);
+ radeon_ring_write(ring, 0);
+
+ radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000));
+ radeon_ring_write(ring, SH_MEM_APE1_BASE >> 2);
+ radeon_ring_write(ring, 1);
+
+ radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000));
+ radeon_ring_write(ring, SH_MEM_APE1_LIMIT >> 2);
+ radeon_ring_write(ring, 0);
+
+ radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000));
+ radeon_ring_write(ring, SRBM_GFX_CNTL >> 2);
+ radeon_ring_write(ring, VMID(0));
+
+ /* flush HDP */
+ radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_POLL_REG_MEM, 0, extra_bits));
+ radeon_ring_write(ring, GPU_HDP_FLUSH_DONE);
+ radeon_ring_write(ring, GPU_HDP_FLUSH_REQ);
+ radeon_ring_write(ring, ref_and_mask); /* REFERENCE */
+ radeon_ring_write(ring, ref_and_mask); /* MASK */
+ radeon_ring_write(ring, (4 << 16) | 10); /* RETRY_COUNT, POLL_INTERVAL */
+
+ /* flush TLB */
+ radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000));
+ radeon_ring_write(ring, VM_INVALIDATE_REQUEST >> 2);
+ radeon_ring_write(ring, 1 << vm->id);
+}
+
return true;
}
-static u32 evergreen_gpu_check_soft_reset(struct radeon_device *rdev)
+u32 evergreen_gpu_check_soft_reset(struct radeon_device *rdev)
{
u32 reset_mask = 0;
u32 tmp;
return radeon_ring_test_lockup(rdev, ring);
}
-/**
- * evergreen_dma_is_lockup - Check if the DMA engine is locked up
- *
- * @rdev: radeon_device pointer
- * @ring: radeon_ring structure holding ring information
- *
- * Check if the async DMA engine is locked up.
- * Returns true if the engine appears to be locked up, false if not.
- */
-bool evergreen_dma_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
-{
- u32 reset_mask = evergreen_gpu_check_soft_reset(rdev);
-
- if (!(reset_mask & RADEON_RESET_DMA)) {
- radeon_ring_lockup_update(ring);
- return false;
- }
- /* force ring activities */
- radeon_ring_force_activity(rdev, ring);
- return radeon_ring_test_lockup(rdev, ring);
-}
-
/*
* RLC
*/
return IRQ_HANDLED;
}
-/**
- * evergreen_dma_fence_ring_emit - emit a fence on the DMA ring
- *
- * @rdev: radeon_device pointer
- * @fence: radeon 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 (evergreen-SI).
- */
-void evergreen_dma_fence_ring_emit(struct radeon_device *rdev,
- struct radeon_fence *fence)
-{
- struct radeon_ring *ring = &rdev->ring[fence->ring];
- u64 addr = rdev->fence_drv[fence->ring].gpu_addr;
- /* write the fence */
- radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_FENCE, 0, 0));
- radeon_ring_write(ring, addr & 0xfffffffc);
- radeon_ring_write(ring, (upper_32_bits(addr) & 0xff));
- radeon_ring_write(ring, fence->seq);
- /* generate an interrupt */
- radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_TRAP, 0, 0));
- /* flush HDP */
- radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_SRBM_WRITE, 0, 0));
- radeon_ring_write(ring, (0xf << 16) | (HDP_MEM_COHERENCY_FLUSH_CNTL >> 2));
- radeon_ring_write(ring, 1);
-}
-
-/**
- * evergreen_dma_ring_ib_execute - schedule an IB on the DMA engine
- *
- * @rdev: radeon_device pointer
- * @ib: IB object to schedule
- *
- * Schedule an IB in the DMA ring (evergreen).
- */
-void evergreen_dma_ring_ib_execute(struct radeon_device *rdev,
- struct radeon_ib *ib)
-{
- struct radeon_ring *ring = &rdev->ring[ib->ring];
-
- if (rdev->wb.enabled) {
- u32 next_rptr = ring->wptr + 4;
- while ((next_rptr & 7) != 5)
- next_rptr++;
- next_rptr += 3;
- radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_WRITE, 0, 1));
- radeon_ring_write(ring, ring->next_rptr_gpu_addr & 0xfffffffc);
- radeon_ring_write(ring, upper_32_bits(ring->next_rptr_gpu_addr) & 0xff);
- radeon_ring_write(ring, next_rptr);
- }
-
- /* The indirect buffer packet must end on an 8 DW boundary in the DMA ring.
- * Pad as necessary with NOPs.
- */
- while ((ring->wptr & 7) != 5)
- radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_NOP, 0, 0));
- radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_INDIRECT_BUFFER, 0, 0));
- radeon_ring_write(ring, (ib->gpu_addr & 0xFFFFFFE0));
- radeon_ring_write(ring, (ib->length_dw << 12) | (upper_32_bits(ib->gpu_addr) & 0xFF));
-
-}
-
-/**
- * evergreen_copy_dma - copy pages using the DMA engine
- *
- * @rdev: radeon_device pointer
- * @src_offset: src GPU address
- * @dst_offset: dst GPU address
- * @num_gpu_pages: number of GPU pages to xfer
- * @fence: radeon fence object
- *
- * Copy GPU paging using the DMA engine (evergreen-cayman).
- * Used by the radeon ttm implementation to move pages if
- * registered as the asic copy callback.
- */
-int evergreen_copy_dma(struct radeon_device *rdev,
- uint64_t src_offset, uint64_t dst_offset,
- unsigned num_gpu_pages,
- struct radeon_fence **fence)
-{
- struct radeon_semaphore *sem = NULL;
- int ring_index = rdev->asic->copy.dma_ring_index;
- struct radeon_ring *ring = &rdev->ring[ring_index];
- u32 size_in_dw, cur_size_in_dw;
- int i, num_loops;
- int r = 0;
-
- r = radeon_semaphore_create(rdev, &sem);
- if (r) {
- DRM_ERROR("radeon: moving bo (%d).\n", r);
- return r;
- }
-
- size_in_dw = (num_gpu_pages << RADEON_GPU_PAGE_SHIFT) / 4;
- num_loops = DIV_ROUND_UP(size_in_dw, 0xfffff);
- r = radeon_ring_lock(rdev, ring, num_loops * 5 + 11);
- if (r) {
- DRM_ERROR("radeon: moving bo (%d).\n", r);
- radeon_semaphore_free(rdev, &sem, NULL);
- return r;
- }
-
- if (radeon_fence_need_sync(*fence, ring->idx)) {
- radeon_semaphore_sync_rings(rdev, sem, (*fence)->ring,
- ring->idx);
- radeon_fence_note_sync(*fence, ring->idx);
- } else {
- radeon_semaphore_free(rdev, &sem, NULL);
- }
-
- for (i = 0; i < num_loops; i++) {
- cur_size_in_dw = size_in_dw;
- if (cur_size_in_dw > 0xFFFFF)
- cur_size_in_dw = 0xFFFFF;
- size_in_dw -= cur_size_in_dw;
- radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_COPY, 0, cur_size_in_dw));
- radeon_ring_write(ring, dst_offset & 0xfffffffc);
- radeon_ring_write(ring, src_offset & 0xfffffffc);
- radeon_ring_write(ring, upper_32_bits(dst_offset) & 0xff);
- radeon_ring_write(ring, upper_32_bits(src_offset) & 0xff);
- src_offset += cur_size_in_dw * 4;
- dst_offset += cur_size_in_dw * 4;
- }
-
- r = radeon_fence_emit(rdev, fence, ring->idx);
- if (r) {
- radeon_ring_unlock_undo(rdev, ring);
- return r;
- }
-
- radeon_ring_unlock_commit(rdev, ring);
- radeon_semaphore_free(rdev, &sem, *fence);
-
- return r;
-}
-
static int evergreen_startup(struct radeon_device *rdev)
{
struct radeon_ring *ring;
--- /dev/null
+/*
+ * Copyright 2010 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 <drm/drmP.h>
+#include "radeon.h"
+#include "radeon_asic.h"
+#include "evergreend.h"
+
+u32 evergreen_gpu_check_soft_reset(struct radeon_device *rdev);
+
+/**
+ * evergreen_dma_fence_ring_emit - emit a fence on the DMA ring
+ *
+ * @rdev: radeon_device pointer
+ * @fence: radeon 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 (evergreen-SI).
+ */
+void evergreen_dma_fence_ring_emit(struct radeon_device *rdev,
+ struct radeon_fence *fence)
+{
+ struct radeon_ring *ring = &rdev->ring[fence->ring];
+ u64 addr = rdev->fence_drv[fence->ring].gpu_addr;
+ /* write the fence */
+ radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_FENCE, 0, 0));
+ radeon_ring_write(ring, addr & 0xfffffffc);
+ radeon_ring_write(ring, (upper_32_bits(addr) & 0xff));
+ radeon_ring_write(ring, fence->seq);
+ /* generate an interrupt */
+ radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_TRAP, 0, 0));
+ /* flush HDP */
+ radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_SRBM_WRITE, 0, 0));
+ radeon_ring_write(ring, (0xf << 16) | (HDP_MEM_COHERENCY_FLUSH_CNTL >> 2));
+ radeon_ring_write(ring, 1);
+}
+
+/**
+ * evergreen_dma_ring_ib_execute - schedule an IB on the DMA engine
+ *
+ * @rdev: radeon_device pointer
+ * @ib: IB object to schedule
+ *
+ * Schedule an IB in the DMA ring (evergreen).
+ */
+void evergreen_dma_ring_ib_execute(struct radeon_device *rdev,
+ struct radeon_ib *ib)
+{
+ struct radeon_ring *ring = &rdev->ring[ib->ring];
+
+ if (rdev->wb.enabled) {
+ u32 next_rptr = ring->wptr + 4;
+ while ((next_rptr & 7) != 5)
+ next_rptr++;
+ next_rptr += 3;
+ radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_WRITE, 0, 1));
+ radeon_ring_write(ring, ring->next_rptr_gpu_addr & 0xfffffffc);
+ radeon_ring_write(ring, upper_32_bits(ring->next_rptr_gpu_addr) & 0xff);
+ radeon_ring_write(ring, next_rptr);
+ }
+
+ /* The indirect buffer packet must end on an 8 DW boundary in the DMA ring.
+ * Pad as necessary with NOPs.
+ */
+ while ((ring->wptr & 7) != 5)
+ radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_NOP, 0, 0));
+ radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_INDIRECT_BUFFER, 0, 0));
+ radeon_ring_write(ring, (ib->gpu_addr & 0xFFFFFFE0));
+ radeon_ring_write(ring, (ib->length_dw << 12) | (upper_32_bits(ib->gpu_addr) & 0xFF));
+
+}
+
+/**
+ * evergreen_copy_dma - copy pages using the DMA engine
+ *
+ * @rdev: radeon_device pointer
+ * @src_offset: src GPU address
+ * @dst_offset: dst GPU address
+ * @num_gpu_pages: number of GPU pages to xfer
+ * @fence: radeon fence object
+ *
+ * Copy GPU paging using the DMA engine (evergreen-cayman).
+ * Used by the radeon ttm implementation to move pages if
+ * registered as the asic copy callback.
+ */
+int evergreen_copy_dma(struct radeon_device *rdev,
+ uint64_t src_offset, uint64_t dst_offset,
+ unsigned num_gpu_pages,
+ struct radeon_fence **fence)
+{
+ struct radeon_semaphore *sem = NULL;
+ int ring_index = rdev->asic->copy.dma_ring_index;
+ struct radeon_ring *ring = &rdev->ring[ring_index];
+ u32 size_in_dw, cur_size_in_dw;
+ int i, num_loops;
+ int r = 0;
+
+ r = radeon_semaphore_create(rdev, &sem);
+ if (r) {
+ DRM_ERROR("radeon: moving bo (%d).\n", r);
+ return r;
+ }
+
+ size_in_dw = (num_gpu_pages << RADEON_GPU_PAGE_SHIFT) / 4;
+ num_loops = DIV_ROUND_UP(size_in_dw, 0xfffff);
+ r = radeon_ring_lock(rdev, ring, num_loops * 5 + 11);
+ if (r) {
+ DRM_ERROR("radeon: moving bo (%d).\n", r);
+ radeon_semaphore_free(rdev, &sem, NULL);
+ return r;
+ }
+
+ if (radeon_fence_need_sync(*fence, ring->idx)) {
+ radeon_semaphore_sync_rings(rdev, sem, (*fence)->ring,
+ ring->idx);
+ radeon_fence_note_sync(*fence, ring->idx);
+ } else {
+ radeon_semaphore_free(rdev, &sem, NULL);
+ }
+
+ for (i = 0; i < num_loops; i++) {
+ cur_size_in_dw = size_in_dw;
+ if (cur_size_in_dw > 0xFFFFF)
+ cur_size_in_dw = 0xFFFFF;
+ size_in_dw -= cur_size_in_dw;
+ radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_COPY, 0, cur_size_in_dw));
+ radeon_ring_write(ring, dst_offset & 0xfffffffc);
+ radeon_ring_write(ring, src_offset & 0xfffffffc);
+ radeon_ring_write(ring, upper_32_bits(dst_offset) & 0xff);
+ radeon_ring_write(ring, upper_32_bits(src_offset) & 0xff);
+ src_offset += cur_size_in_dw * 4;
+ dst_offset += cur_size_in_dw * 4;
+ }
+
+ r = radeon_fence_emit(rdev, fence, ring->idx);
+ if (r) {
+ radeon_ring_unlock_undo(rdev, ring);
+ return r;
+ }
+
+ radeon_ring_unlock_commit(rdev, ring);
+ radeon_semaphore_free(rdev, &sem, *fence);
+
+ return r;
+}
+
+/**
+ * evergreen_dma_is_lockup - Check if the DMA engine is locked up
+ *
+ * @rdev: radeon_device pointer
+ * @ring: radeon_ring structure holding ring information
+ *
+ * Check if the async DMA engine is locked up.
+ * Returns true if the engine appears to be locked up, false if not.
+ */
+bool evergreen_dma_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
+{
+ u32 reset_mask = evergreen_gpu_check_soft_reset(rdev);
+
+ if (!(reset_mask & RADEON_RESET_DMA)) {
+ radeon_ring_lockup_update(ring);
+ return false;
+ }
+ /* force ring activities */
+ radeon_ring_force_activity(rdev, ring);
+ return radeon_ring_test_lockup(rdev, ring);
+}
+
+
extern void evergreen_program_aspm(struct radeon_device *rdev);
extern void sumo_rlc_fini(struct radeon_device *rdev);
extern int sumo_rlc_init(struct radeon_device *rdev);
+extern void cayman_dma_vm_set_page(struct radeon_device *rdev,
+ struct radeon_ib *ib,
+ uint64_t pe,
+ uint64_t addr, unsigned count,
+ uint32_t incr, uint32_t flags);
/* Firmware Names */
MODULE_FIRMWARE("radeon/BARTS_pfp.bin");
return 0;
}
-/*
- * DMA
- * Starting with R600, the GPU has an asynchronous
- * DMA engine. The programming model is very similar
- * to the 3D engine (ring buffer, IBs, etc.), but the
- * DMA controller has it's own packet format that is
- * different form the PM4 format used by the 3D engine.
- * It supports copying data, writing embedded data,
- * solid fills, and a number of other things. It also
- * has support for tiling/detiling of buffers.
- * Cayman and newer support two asynchronous DMA engines.
- */
-/**
- * cayman_dma_ring_ib_execute - Schedule an IB on the DMA engine
- *
- * @rdev: radeon_device pointer
- * @ib: IB object to schedule
- *
- * Schedule an IB in the DMA ring (cayman-SI).
- */
-void cayman_dma_ring_ib_execute(struct radeon_device *rdev,
- struct radeon_ib *ib)
-{
- struct radeon_ring *ring = &rdev->ring[ib->ring];
-
- if (rdev->wb.enabled) {
- u32 next_rptr = ring->wptr + 4;
- while ((next_rptr & 7) != 5)
- next_rptr++;
- next_rptr += 3;
- radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_WRITE, 0, 0, 1));
- radeon_ring_write(ring, ring->next_rptr_gpu_addr & 0xfffffffc);
- radeon_ring_write(ring, upper_32_bits(ring->next_rptr_gpu_addr) & 0xff);
- radeon_ring_write(ring, next_rptr);
- }
-
- /* The indirect buffer packet must end on an 8 DW boundary in the DMA ring.
- * Pad as necessary with NOPs.
- */
- while ((ring->wptr & 7) != 5)
- radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_NOP, 0, 0, 0));
- radeon_ring_write(ring, DMA_IB_PACKET(DMA_PACKET_INDIRECT_BUFFER, ib->vm ? ib->vm->id : 0, 0));
- radeon_ring_write(ring, (ib->gpu_addr & 0xFFFFFFE0));
- radeon_ring_write(ring, (ib->length_dw << 12) | (upper_32_bits(ib->gpu_addr) & 0xFF));
-
-}
-
-/**
- * cayman_dma_stop - stop the async dma engines
- *
- * @rdev: radeon_device pointer
- *
- * Stop the async dma engines (cayman-SI).
- */
-void cayman_dma_stop(struct radeon_device *rdev)
-{
- u32 rb_cntl;
-
- radeon_ttm_set_active_vram_size(rdev, rdev->mc.visible_vram_size);
-
- /* dma0 */
- rb_cntl = RREG32(DMA_RB_CNTL + DMA0_REGISTER_OFFSET);
- rb_cntl &= ~DMA_RB_ENABLE;
- WREG32(DMA_RB_CNTL + DMA0_REGISTER_OFFSET, rb_cntl);
-
- /* dma1 */
- rb_cntl = RREG32(DMA_RB_CNTL + DMA1_REGISTER_OFFSET);
- rb_cntl &= ~DMA_RB_ENABLE;
- WREG32(DMA_RB_CNTL + DMA1_REGISTER_OFFSET, rb_cntl);
-
- rdev->ring[R600_RING_TYPE_DMA_INDEX].ready = false;
- rdev->ring[CAYMAN_RING_TYPE_DMA1_INDEX].ready = false;
-}
-
-/**
- * cayman_dma_resume - setup and start the async dma engines
- *
- * @rdev: radeon_device pointer
- *
- * Set up the DMA ring buffers and enable them. (cayman-SI).
- * Returns 0 for success, error for failure.
- */
-int cayman_dma_resume(struct radeon_device *rdev)
-{
- struct radeon_ring *ring;
- u32 rb_cntl, dma_cntl, ib_cntl;
- u32 rb_bufsz;
- u32 reg_offset, wb_offset;
- int i, r;
-
- /* Reset dma */
- WREG32(SRBM_SOFT_RESET, SOFT_RESET_DMA | SOFT_RESET_DMA1);
- RREG32(SRBM_SOFT_RESET);
- udelay(50);
- WREG32(SRBM_SOFT_RESET, 0);
-
- for (i = 0; i < 2; i++) {
- if (i == 0) {
- ring = &rdev->ring[R600_RING_TYPE_DMA_INDEX];
- reg_offset = DMA0_REGISTER_OFFSET;
- wb_offset = R600_WB_DMA_RPTR_OFFSET;
- } else {
- ring = &rdev->ring[CAYMAN_RING_TYPE_DMA1_INDEX];
- reg_offset = DMA1_REGISTER_OFFSET;
- wb_offset = CAYMAN_WB_DMA1_RPTR_OFFSET;
- }
-
- WREG32(DMA_SEM_INCOMPLETE_TIMER_CNTL + reg_offset, 0);
- WREG32(DMA_SEM_WAIT_FAIL_TIMER_CNTL + reg_offset, 0);
-
- /* Set ring buffer size in dwords */
- rb_bufsz = drm_order(ring->ring_size / 4);
- rb_cntl = rb_bufsz << 1;
-#ifdef __BIG_ENDIAN
- rb_cntl |= DMA_RB_SWAP_ENABLE | DMA_RPTR_WRITEBACK_SWAP_ENABLE;
-#endif
- WREG32(DMA_RB_CNTL + reg_offset, rb_cntl);
-
- /* Initialize the ring buffer's read and write pointers */
- WREG32(DMA_RB_RPTR + reg_offset, 0);
- WREG32(DMA_RB_WPTR + reg_offset, 0);
-
- /* set the wb address whether it's enabled or not */
- WREG32(DMA_RB_RPTR_ADDR_HI + reg_offset,
- upper_32_bits(rdev->wb.gpu_addr + wb_offset) & 0xFF);
- WREG32(DMA_RB_RPTR_ADDR_LO + reg_offset,
- ((rdev->wb.gpu_addr + wb_offset) & 0xFFFFFFFC));
-
- if (rdev->wb.enabled)
- rb_cntl |= DMA_RPTR_WRITEBACK_ENABLE;
-
- WREG32(DMA_RB_BASE + reg_offset, ring->gpu_addr >> 8);
-
- /* enable DMA IBs */
- ib_cntl = DMA_IB_ENABLE | CMD_VMID_FORCE;
-#ifdef __BIG_ENDIAN
- ib_cntl |= DMA_IB_SWAP_ENABLE;
-#endif
- WREG32(DMA_IB_CNTL + reg_offset, ib_cntl);
-
- dma_cntl = RREG32(DMA_CNTL + reg_offset);
- dma_cntl &= ~CTXEMPTY_INT_ENABLE;
- WREG32(DMA_CNTL + reg_offset, dma_cntl);
-
- ring->wptr = 0;
- WREG32(DMA_RB_WPTR + reg_offset, ring->wptr << 2);
-
- ring->rptr = RREG32(DMA_RB_RPTR + reg_offset) >> 2;
-
- WREG32(DMA_RB_CNTL + reg_offset, rb_cntl | DMA_RB_ENABLE);
-
- ring->ready = true;
-
- r = radeon_ring_test(rdev, ring->idx, ring);
- if (r) {
- ring->ready = false;
- return r;
- }
- }
-
- radeon_ttm_set_active_vram_size(rdev, rdev->mc.real_vram_size);
-
- return 0;
-}
-
-/**
- * cayman_dma_fini - tear down the async dma engines
- *
- * @rdev: radeon_device pointer
- *
- * Stop the async dma engines and free the rings (cayman-SI).
- */
-void cayman_dma_fini(struct radeon_device *rdev)
-{
- cayman_dma_stop(rdev);
- radeon_ring_fini(rdev, &rdev->ring[R600_RING_TYPE_DMA_INDEX]);
- radeon_ring_fini(rdev, &rdev->ring[CAYMAN_RING_TYPE_DMA1_INDEX]);
-}
-
-static u32 cayman_gpu_check_soft_reset(struct radeon_device *rdev)
+u32 cayman_gpu_check_soft_reset(struct radeon_device *rdev)
{
u32 reset_mask = 0;
u32 tmp;
return radeon_ring_test_lockup(rdev, ring);
}
-/**
- * cayman_dma_is_lockup - Check if the DMA engine is locked up
- *
- * @rdev: radeon_device pointer
- * @ring: radeon_ring structure holding ring information
- *
- * Check if the async DMA engine is locked up.
- * Returns true if the engine appears to be locked up, false if not.
- */
-bool cayman_dma_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
-{
- u32 reset_mask = cayman_gpu_check_soft_reset(rdev);
- u32 mask;
-
- if (ring->idx == R600_RING_TYPE_DMA_INDEX)
- mask = RADEON_RESET_DMA;
- else
- mask = RADEON_RESET_DMA1;
-
- if (!(reset_mask & mask)) {
- radeon_ring_lockup_update(ring);
- return false;
- }
- /* force ring activities */
- radeon_ring_force_activity(rdev, ring);
- return radeon_ring_test_lockup(rdev, ring);
-}
-
static int cayman_startup(struct radeon_device *rdev)
{
struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
}
}
} else {
- if ((flags & RADEON_VM_PAGE_SYSTEM) ||
- (count == 1)) {
- while (count) {
- ndw = count * 2;
- if (ndw > 0xFFFFE)
- ndw = 0xFFFFE;
-
- /* for non-physically contiguous pages (system) */
- ib->ptr[ib->length_dw++] = DMA_PACKET(DMA_PACKET_WRITE, 0, 0, ndw);
- ib->ptr[ib->length_dw++] = pe;
- ib->ptr[ib->length_dw++] = upper_32_bits(pe) & 0xff;
- for (; ndw > 0; ndw -= 2, --count, pe += 8) {
- if (flags & RADEON_VM_PAGE_SYSTEM) {
- value = radeon_vm_map_gart(rdev, addr);
- value &= 0xFFFFFFFFFFFFF000ULL;
- } else if (flags & RADEON_VM_PAGE_VALID) {
- value = addr;
- } else {
- value = 0;
- }
- addr += incr;
- value |= r600_flags;
- ib->ptr[ib->length_dw++] = value;
- ib->ptr[ib->length_dw++] = upper_32_bits(value);
- }
- }
- while (ib->length_dw & 0x7)
- ib->ptr[ib->length_dw++] = DMA_PACKET(DMA_PACKET_NOP, 0, 0, 0);
- } else {
- while (count) {
- ndw = count * 2;
- if (ndw > 0xFFFFE)
- ndw = 0xFFFFE;
-
- if (flags & RADEON_VM_PAGE_VALID)
- value = addr;
- else
- value = 0;
- /* for physically contiguous pages (vram) */
- ib->ptr[ib->length_dw++] = DMA_PTE_PDE_PACKET(ndw);
- ib->ptr[ib->length_dw++] = pe; /* dst addr */
- ib->ptr[ib->length_dw++] = upper_32_bits(pe) & 0xff;
- ib->ptr[ib->length_dw++] = r600_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;
- pe += ndw * 4;
- addr += (ndw / 2) * incr;
- count -= ndw / 2;
- }
- }
- while (ib->length_dw & 0x7)
- ib->ptr[ib->length_dw++] = DMA_PACKET(DMA_PACKET_NOP, 0, 0, 0);
+ cayman_dma_vm_set_page(rdev, ib, pe, addr, count, incr, flags);
}
}
radeon_ring_write(ring, PACKET3(PACKET3_PFP_SYNC_ME, 0));
radeon_ring_write(ring, 0x0);
}
-
-void cayman_dma_vm_flush(struct radeon_device *rdev, int ridx, struct radeon_vm *vm)
-{
- struct radeon_ring *ring = &rdev->ring[ridx];
-
- if (vm == NULL)
- return;
-
- radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_SRBM_WRITE, 0, 0, 0));
- radeon_ring_write(ring, (0xf << 16) | ((VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + (vm->id << 2)) >> 2));
- radeon_ring_write(ring, vm->pd_gpu_addr >> 12);
-
- /* flush hdp cache */
- radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_SRBM_WRITE, 0, 0, 0));
- radeon_ring_write(ring, (0xf << 16) | (HDP_MEM_COHERENCY_FLUSH_CNTL >> 2));
- radeon_ring_write(ring, 1);
-
- /* bits 0-7 are the VM contexts0-7 */
- radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_SRBM_WRITE, 0, 0, 0));
- radeon_ring_write(ring, (0xf << 16) | (VM_INVALIDATE_REQUEST >> 2));
- radeon_ring_write(ring, 1 << vm->id);
-}
-
--- /dev/null
+/*
+ * Copyright 2010 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 <drm/drmP.h>
+#include "radeon.h"
+#include "radeon_asic.h"
+#include "nid.h"
+
+u32 cayman_gpu_check_soft_reset(struct radeon_device *rdev);
+
+/*
+ * DMA
+ * Starting with R600, the GPU has an asynchronous
+ * DMA engine. The programming model is very similar
+ * to the 3D engine (ring buffer, IBs, etc.), but the
+ * DMA controller has it's own packet format that is
+ * different form the PM4 format used by the 3D engine.
+ * It supports copying data, writing embedded data,
+ * solid fills, and a number of other things. It also
+ * has support for tiling/detiling of buffers.
+ * Cayman and newer support two asynchronous DMA engines.
+ */
+
+/**
+ * cayman_dma_ring_ib_execute - Schedule an IB on the DMA engine
+ *
+ * @rdev: radeon_device pointer
+ * @ib: IB object to schedule
+ *
+ * Schedule an IB in the DMA ring (cayman-SI).
+ */
+void cayman_dma_ring_ib_execute(struct radeon_device *rdev,
+ struct radeon_ib *ib)
+{
+ struct radeon_ring *ring = &rdev->ring[ib->ring];
+
+ if (rdev->wb.enabled) {
+ u32 next_rptr = ring->wptr + 4;
+ while ((next_rptr & 7) != 5)
+ next_rptr++;
+ next_rptr += 3;
+ radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_WRITE, 0, 0, 1));
+ radeon_ring_write(ring, ring->next_rptr_gpu_addr & 0xfffffffc);
+ radeon_ring_write(ring, upper_32_bits(ring->next_rptr_gpu_addr) & 0xff);
+ radeon_ring_write(ring, next_rptr);
+ }
+
+ /* The indirect buffer packet must end on an 8 DW boundary in the DMA ring.
+ * Pad as necessary with NOPs.
+ */
+ while ((ring->wptr & 7) != 5)
+ radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_NOP, 0, 0, 0));
+ radeon_ring_write(ring, DMA_IB_PACKET(DMA_PACKET_INDIRECT_BUFFER, ib->vm ? ib->vm->id : 0, 0));
+ radeon_ring_write(ring, (ib->gpu_addr & 0xFFFFFFE0));
+ radeon_ring_write(ring, (ib->length_dw << 12) | (upper_32_bits(ib->gpu_addr) & 0xFF));
+
+}
+
+/**
+ * cayman_dma_stop - stop the async dma engines
+ *
+ * @rdev: radeon_device pointer
+ *
+ * Stop the async dma engines (cayman-SI).
+ */
+void cayman_dma_stop(struct radeon_device *rdev)
+{
+ u32 rb_cntl;
+
+ radeon_ttm_set_active_vram_size(rdev, rdev->mc.visible_vram_size);
+
+ /* dma0 */
+ rb_cntl = RREG32(DMA_RB_CNTL + DMA0_REGISTER_OFFSET);
+ rb_cntl &= ~DMA_RB_ENABLE;
+ WREG32(DMA_RB_CNTL + DMA0_REGISTER_OFFSET, rb_cntl);
+
+ /* dma1 */
+ rb_cntl = RREG32(DMA_RB_CNTL + DMA1_REGISTER_OFFSET);
+ rb_cntl &= ~DMA_RB_ENABLE;
+ WREG32(DMA_RB_CNTL + DMA1_REGISTER_OFFSET, rb_cntl);
+
+ rdev->ring[R600_RING_TYPE_DMA_INDEX].ready = false;
+ rdev->ring[CAYMAN_RING_TYPE_DMA1_INDEX].ready = false;
+}
+
+/**
+ * cayman_dma_resume - setup and start the async dma engines
+ *
+ * @rdev: radeon_device pointer
+ *
+ * Set up the DMA ring buffers and enable them. (cayman-SI).
+ * Returns 0 for success, error for failure.
+ */
+int cayman_dma_resume(struct radeon_device *rdev)
+{
+ struct radeon_ring *ring;
+ u32 rb_cntl, dma_cntl, ib_cntl;
+ u32 rb_bufsz;
+ u32 reg_offset, wb_offset;
+ int i, r;
+
+ /* Reset dma */
+ WREG32(SRBM_SOFT_RESET, SOFT_RESET_DMA | SOFT_RESET_DMA1);
+ RREG32(SRBM_SOFT_RESET);
+ udelay(50);
+ WREG32(SRBM_SOFT_RESET, 0);
+
+ for (i = 0; i < 2; i++) {
+ if (i == 0) {
+ ring = &rdev->ring[R600_RING_TYPE_DMA_INDEX];
+ reg_offset = DMA0_REGISTER_OFFSET;
+ wb_offset = R600_WB_DMA_RPTR_OFFSET;
+ } else {
+ ring = &rdev->ring[CAYMAN_RING_TYPE_DMA1_INDEX];
+ reg_offset = DMA1_REGISTER_OFFSET;
+ wb_offset = CAYMAN_WB_DMA1_RPTR_OFFSET;
+ }
+
+ WREG32(DMA_SEM_INCOMPLETE_TIMER_CNTL + reg_offset, 0);
+ WREG32(DMA_SEM_WAIT_FAIL_TIMER_CNTL + reg_offset, 0);
+
+ /* Set ring buffer size in dwords */
+ rb_bufsz = drm_order(ring->ring_size / 4);
+ rb_cntl = rb_bufsz << 1;
+#ifdef __BIG_ENDIAN
+ rb_cntl |= DMA_RB_SWAP_ENABLE | DMA_RPTR_WRITEBACK_SWAP_ENABLE;
+#endif
+ WREG32(DMA_RB_CNTL + reg_offset, rb_cntl);
+
+ /* Initialize the ring buffer's read and write pointers */
+ WREG32(DMA_RB_RPTR + reg_offset, 0);
+ WREG32(DMA_RB_WPTR + reg_offset, 0);
+
+ /* set the wb address whether it's enabled or not */
+ WREG32(DMA_RB_RPTR_ADDR_HI + reg_offset,
+ upper_32_bits(rdev->wb.gpu_addr + wb_offset) & 0xFF);
+ WREG32(DMA_RB_RPTR_ADDR_LO + reg_offset,
+ ((rdev->wb.gpu_addr + wb_offset) & 0xFFFFFFFC));
+
+ if (rdev->wb.enabled)
+ rb_cntl |= DMA_RPTR_WRITEBACK_ENABLE;
+
+ WREG32(DMA_RB_BASE + reg_offset, ring->gpu_addr >> 8);
+
+ /* enable DMA IBs */
+ ib_cntl = DMA_IB_ENABLE | CMD_VMID_FORCE;
+#ifdef __BIG_ENDIAN
+ ib_cntl |= DMA_IB_SWAP_ENABLE;
+#endif
+ WREG32(DMA_IB_CNTL + reg_offset, ib_cntl);
+
+ dma_cntl = RREG32(DMA_CNTL + reg_offset);
+ dma_cntl &= ~CTXEMPTY_INT_ENABLE;
+ WREG32(DMA_CNTL + reg_offset, dma_cntl);
+
+ ring->wptr = 0;
+ WREG32(DMA_RB_WPTR + reg_offset, ring->wptr << 2);
+
+ ring->rptr = RREG32(DMA_RB_RPTR + reg_offset) >> 2;
+
+ WREG32(DMA_RB_CNTL + reg_offset, rb_cntl | DMA_RB_ENABLE);
+
+ ring->ready = true;
+
+ r = radeon_ring_test(rdev, ring->idx, ring);
+ if (r) {
+ ring->ready = false;
+ return r;
+ }
+ }
+
+ radeon_ttm_set_active_vram_size(rdev, rdev->mc.real_vram_size);
+
+ return 0;
+}
+
+/**
+ * cayman_dma_fini - tear down the async dma engines
+ *
+ * @rdev: radeon_device pointer
+ *
+ * Stop the async dma engines and free the rings (cayman-SI).
+ */
+void cayman_dma_fini(struct radeon_device *rdev)
+{
+ cayman_dma_stop(rdev);
+ radeon_ring_fini(rdev, &rdev->ring[R600_RING_TYPE_DMA_INDEX]);
+ radeon_ring_fini(rdev, &rdev->ring[CAYMAN_RING_TYPE_DMA1_INDEX]);
+}
+
+/**
+ * cayman_dma_is_lockup - Check if the DMA engine is locked up
+ *
+ * @rdev: radeon_device pointer
+ * @ring: radeon_ring structure holding ring information
+ *
+ * Check if the async DMA engine is locked up.
+ * Returns true if the engine appears to be locked up, false if not.
+ */
+bool cayman_dma_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
+{
+ u32 reset_mask = cayman_gpu_check_soft_reset(rdev);
+ u32 mask;
+
+ if (ring->idx == R600_RING_TYPE_DMA_INDEX)
+ mask = RADEON_RESET_DMA;
+ else
+ mask = RADEON_RESET_DMA1;
+
+ if (!(reset_mask & mask)) {
+ radeon_ring_lockup_update(ring);
+ return false;
+ }
+ /* force ring activities */
+ radeon_ring_force_activity(rdev, ring);
+ return radeon_ring_test_lockup(rdev, ring);
+}
+
+/**
+ * cayman_dma_vm_set_page - update the page tables using the DMA
+ *
+ * @rdev: radeon_device pointer
+ * @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
+ * @r600_flags: hw access flags
+ *
+ * Update the page tables using the DMA (cayman/TN).
+ */
+void cayman_dma_vm_set_page(struct radeon_device *rdev,
+ struct radeon_ib *ib,
+ uint64_t pe,
+ uint64_t addr, unsigned count,
+ uint32_t incr, uint32_t flags)
+{
+ uint32_t r600_flags = cayman_vm_page_flags(rdev, flags);
+ uint64_t value;
+ unsigned ndw;
+
+ if ((flags & RADEON_VM_PAGE_SYSTEM) || (count == 1)) {
+ while (count) {
+ ndw = count * 2;
+ if (ndw > 0xFFFFE)
+ ndw = 0xFFFFE;
+
+ /* for non-physically contiguous pages (system) */
+ ib->ptr[ib->length_dw++] = DMA_PACKET(DMA_PACKET_WRITE, 0, 0, ndw);
+ ib->ptr[ib->length_dw++] = pe;
+ ib->ptr[ib->length_dw++] = upper_32_bits(pe) & 0xff;
+ for (; ndw > 0; ndw -= 2, --count, pe += 8) {
+ if (flags & RADEON_VM_PAGE_SYSTEM) {
+ value = radeon_vm_map_gart(rdev, addr);
+ value &= 0xFFFFFFFFFFFFF000ULL;
+ } else if (flags & RADEON_VM_PAGE_VALID) {
+ value = addr;
+ } else {
+ value = 0;
+ }
+ addr += incr;
+ value |= r600_flags;
+ ib->ptr[ib->length_dw++] = value;
+ ib->ptr[ib->length_dw++] = upper_32_bits(value);
+ }
+ }
+ } else {
+ while (count) {
+ ndw = count * 2;
+ if (ndw > 0xFFFFE)
+ ndw = 0xFFFFE;
+
+ if (flags & RADEON_VM_PAGE_VALID)
+ value = addr;
+ else
+ value = 0;
+ /* for physically contiguous pages (vram) */
+ ib->ptr[ib->length_dw++] = DMA_PTE_PDE_PACKET(ndw);
+ ib->ptr[ib->length_dw++] = pe; /* dst addr */
+ ib->ptr[ib->length_dw++] = upper_32_bits(pe) & 0xff;
+ ib->ptr[ib->length_dw++] = r600_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;
+ pe += ndw * 4;
+ addr += (ndw / 2) * incr;
+ count -= ndw / 2;
+ }
+ }
+ while (ib->length_dw & 0x7)
+ ib->ptr[ib->length_dw++] = DMA_PACKET(DMA_PACKET_NOP, 0, 0, 0);
+}
+
+void cayman_dma_vm_flush(struct radeon_device *rdev, int ridx, struct radeon_vm *vm)
+{
+ struct radeon_ring *ring = &rdev->ring[ridx];
+
+ if (vm == NULL)
+ return;
+
+ radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_SRBM_WRITE, 0, 0, 0));
+ radeon_ring_write(ring, (0xf << 16) | ((VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + (vm->id << 2)) >> 2));
+ radeon_ring_write(ring, vm->pd_gpu_addr >> 12);
+
+ /* flush hdp cache */
+ radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_SRBM_WRITE, 0, 0, 0));
+ radeon_ring_write(ring, (0xf << 16) | (HDP_MEM_COHERENCY_FLUSH_CNTL >> 2));
+ radeon_ring_write(ring, 1);
+
+ /* bits 0-7 are the VM contexts0-7 */
+ radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_SRBM_WRITE, 0, 0, 0));
+ radeon_ring_write(ring, (0xf << 16) | (VM_INVALIDATE_REQUEST >> 2));
+ radeon_ring_write(ring, 1 << vm->id);
+}
+
return true;
}
-static u32 r600_gpu_check_soft_reset(struct radeon_device *rdev)
+u32 r600_gpu_check_soft_reset(struct radeon_device *rdev)
{
u32 reset_mask = 0;
u32 tmp;
return radeon_ring_test_lockup(rdev, ring);
}
-/**
- * r600_dma_is_lockup - Check if the DMA engine is locked up
- *
- * @rdev: radeon_device pointer
- * @ring: radeon_ring structure holding ring information
- *
- * Check if the async DMA engine is locked up.
- * Returns true if the engine appears to be locked up, false if not.
- */
-bool r600_dma_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
-{
- u32 reset_mask = r600_gpu_check_soft_reset(rdev);
-
- if (!(reset_mask & RADEON_RESET_DMA)) {
- radeon_ring_lockup_update(ring);
- return false;
- }
- /* force ring activities */
- radeon_ring_force_activity(rdev, ring);
- return radeon_ring_test_lockup(rdev, ring);
-}
-
u32 r6xx_remap_render_backend(struct radeon_device *rdev,
u32 tiling_pipe_num,
u32 max_rb_num,
radeon_scratch_free(rdev, ring->rptr_save_reg);
}
-/*
- * DMA
- * Starting with R600, the GPU has an asynchronous
- * DMA engine. The programming model is very similar
- * to the 3D engine (ring buffer, IBs, etc.), but the
- * DMA controller has it's own packet format that is
- * different form the PM4 format used by the 3D engine.
- * It supports copying data, writing embedded data,
- * solid fills, and a number of other things. It also
- * has support for tiling/detiling of buffers.
- */
-
-/**
- * r600_dma_get_rptr - get the current read pointer
- *
- * @rdev: radeon_device pointer
- * @ring: radeon ring pointer
- *
- * Get the current rptr from the hardware (r6xx+).
- */
-uint32_t r600_dma_get_rptr(struct radeon_device *rdev,
- struct radeon_ring *ring)
-{
- return (radeon_ring_generic_get_rptr(rdev, ring) & 0x3fffc) >> 2;
-}
-
-/**
- * r600_dma_get_wptr - get the current write pointer
- *
- * @rdev: radeon_device pointer
- * @ring: radeon ring pointer
- *
- * Get the current wptr from the hardware (r6xx+).
- */
-uint32_t r600_dma_get_wptr(struct radeon_device *rdev,
- struct radeon_ring *ring)
-{
- return (RREG32(ring->wptr_reg) & 0x3fffc) >> 2;
-}
-
-/**
- * r600_dma_set_wptr - commit the write pointer
- *
- * @rdev: radeon_device pointer
- * @ring: radeon ring pointer
- *
- * Write the wptr back to the hardware (r6xx+).
- */
-void r600_dma_set_wptr(struct radeon_device *rdev,
- struct radeon_ring *ring)
-{
- WREG32(ring->wptr_reg, (ring->wptr << 2) & 0x3fffc);
-}
-
-/**
- * r600_dma_stop - stop the async dma engine
- *
- * @rdev: radeon_device pointer
- *
- * Stop the async dma engine (r6xx-evergreen).
- */
-void r600_dma_stop(struct radeon_device *rdev)
-{
- u32 rb_cntl = RREG32(DMA_RB_CNTL);
-
- radeon_ttm_set_active_vram_size(rdev, rdev->mc.visible_vram_size);
-
- rb_cntl &= ~DMA_RB_ENABLE;
- WREG32(DMA_RB_CNTL, rb_cntl);
-
- rdev->ring[R600_RING_TYPE_DMA_INDEX].ready = false;
-}
-
-/**
- * r600_dma_resume - setup and start the async dma engine
- *
- * @rdev: radeon_device pointer
- *
- * Set up the DMA ring buffer and enable it. (r6xx-evergreen).
- * Returns 0 for success, error for failure.
- */
-int r600_dma_resume(struct radeon_device *rdev)
-{
- struct radeon_ring *ring = &rdev->ring[R600_RING_TYPE_DMA_INDEX];
- u32 rb_cntl, dma_cntl, ib_cntl;
- u32 rb_bufsz;
- int r;
-
- /* Reset dma */
- if (rdev->family >= CHIP_RV770)
- WREG32(SRBM_SOFT_RESET, RV770_SOFT_RESET_DMA);
- else
- WREG32(SRBM_SOFT_RESET, SOFT_RESET_DMA);
- RREG32(SRBM_SOFT_RESET);
- udelay(50);
- WREG32(SRBM_SOFT_RESET, 0);
-
- WREG32(DMA_SEM_INCOMPLETE_TIMER_CNTL, 0);
- WREG32(DMA_SEM_WAIT_FAIL_TIMER_CNTL, 0);
-
- /* Set ring buffer size in dwords */
- rb_bufsz = drm_order(ring->ring_size / 4);
- rb_cntl = rb_bufsz << 1;
-#ifdef __BIG_ENDIAN
- rb_cntl |= DMA_RB_SWAP_ENABLE | DMA_RPTR_WRITEBACK_SWAP_ENABLE;
-#endif
- WREG32(DMA_RB_CNTL, rb_cntl);
-
- /* Initialize the ring buffer's read and write pointers */
- WREG32(DMA_RB_RPTR, 0);
- WREG32(DMA_RB_WPTR, 0);
-
- /* set the wb address whether it's enabled or not */
- WREG32(DMA_RB_RPTR_ADDR_HI,
- upper_32_bits(rdev->wb.gpu_addr + R600_WB_DMA_RPTR_OFFSET) & 0xFF);
- WREG32(DMA_RB_RPTR_ADDR_LO,
- ((rdev->wb.gpu_addr + R600_WB_DMA_RPTR_OFFSET) & 0xFFFFFFFC));
-
- if (rdev->wb.enabled)
- rb_cntl |= DMA_RPTR_WRITEBACK_ENABLE;
-
- WREG32(DMA_RB_BASE, ring->gpu_addr >> 8);
-
- /* enable DMA IBs */
- ib_cntl = DMA_IB_ENABLE;
-#ifdef __BIG_ENDIAN
- ib_cntl |= DMA_IB_SWAP_ENABLE;
-#endif
- WREG32(DMA_IB_CNTL, ib_cntl);
-
- dma_cntl = RREG32(DMA_CNTL);
- dma_cntl &= ~CTXEMPTY_INT_ENABLE;
- WREG32(DMA_CNTL, dma_cntl);
-
- if (rdev->family >= CHIP_RV770)
- WREG32(DMA_MODE, 1);
-
- ring->wptr = 0;
- WREG32(DMA_RB_WPTR, ring->wptr << 2);
-
- ring->rptr = RREG32(DMA_RB_RPTR) >> 2;
-
- WREG32(DMA_RB_CNTL, rb_cntl | DMA_RB_ENABLE);
-
- ring->ready = true;
-
- r = radeon_ring_test(rdev, R600_RING_TYPE_DMA_INDEX, ring);
- if (r) {
- ring->ready = false;
- return r;
- }
-
- radeon_ttm_set_active_vram_size(rdev, rdev->mc.real_vram_size);
-
- return 0;
-}
-
-/**
- * r600_dma_fini - tear down the async dma engine
- *
- * @rdev: radeon_device pointer
- *
- * Stop the async dma engine and free the ring (r6xx-evergreen).
- */
-void r600_dma_fini(struct radeon_device *rdev)
-{
- r600_dma_stop(rdev);
- radeon_ring_fini(rdev, &rdev->ring[R600_RING_TYPE_DMA_INDEX]);
-}
-
/*
* GPU scratch registers helpers function.
*/
return r;
}
-/**
- * r600_dma_ring_test - simple async dma engine test
- *
- * @rdev: radeon_device pointer
- * @ring: radeon_ring structure holding ring information
- *
- * Test the DMA engine by writing using it to write an
- * value to memory. (r6xx-SI).
- * Returns 0 for success, error for failure.
- */
-int r600_dma_ring_test(struct radeon_device *rdev,
- struct radeon_ring *ring)
-{
- unsigned i;
- int r;
- void __iomem *ptr = (void *)rdev->vram_scratch.ptr;
- u32 tmp;
-
- if (!ptr) {
- DRM_ERROR("invalid vram scratch pointer\n");
- return -EINVAL;
- }
-
- tmp = 0xCAFEDEAD;
- writel(tmp, ptr);
-
- r = radeon_ring_lock(rdev, ring, 4);
- if (r) {
- DRM_ERROR("radeon: dma failed to lock ring %d (%d).\n", ring->idx, r);
- return r;
- }
- radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_WRITE, 0, 0, 1));
- radeon_ring_write(ring, rdev->vram_scratch.gpu_addr & 0xfffffffc);
- radeon_ring_write(ring, upper_32_bits(rdev->vram_scratch.gpu_addr) & 0xff);
- radeon_ring_write(ring, 0xDEADBEEF);
- radeon_ring_unlock_commit(rdev, ring);
-
- for (i = 0; i < rdev->usec_timeout; i++) {
- tmp = readl(ptr);
- if (tmp == 0xDEADBEEF)
- break;
- DRM_UDELAY(1);
- }
-
- if (i < rdev->usec_timeout) {
- DRM_INFO("ring test on %d succeeded in %d usecs\n", ring->idx, i);
- } else {
- DRM_ERROR("radeon: ring %d test failed (0x%08X)\n",
- ring->idx, tmp);
- r = -EINVAL;
- }
- return r;
-}
-
/*
* CP fences/semaphores
*/
radeon_ring_write(ring, (upper_32_bits(addr) & 0xff) | sel);
}
-/*
- * DMA fences/semaphores
- */
-
-/**
- * r600_dma_fence_ring_emit - emit a fence on the DMA ring
- *
- * @rdev: radeon_device pointer
- * @fence: radeon 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 (r6xx-r7xx).
- */
-void r600_dma_fence_ring_emit(struct radeon_device *rdev,
- struct radeon_fence *fence)
-{
- struct radeon_ring *ring = &rdev->ring[fence->ring];
- u64 addr = rdev->fence_drv[fence->ring].gpu_addr;
-
- /* write the fence */
- radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_FENCE, 0, 0, 0));
- radeon_ring_write(ring, addr & 0xfffffffc);
- radeon_ring_write(ring, (upper_32_bits(addr) & 0xff));
- radeon_ring_write(ring, lower_32_bits(fence->seq));
- /* generate an interrupt */
- radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_TRAP, 0, 0, 0));
-}
-
-/**
- * r600_dma_semaphore_ring_emit - emit a semaphore on the dma ring
- *
- * @rdev: radeon_device pointer
- * @ring: radeon_ring structure holding ring information
- * @semaphore: radeon semaphore object
- * @emit_wait: wait or signal semaphore
- *
- * Add a DMA semaphore packet to the ring wait on or signal
- * other rings (r6xx-SI).
- */
-void r600_dma_semaphore_ring_emit(struct radeon_device *rdev,
- struct radeon_ring *ring,
- struct radeon_semaphore *semaphore,
- bool emit_wait)
-{
- u64 addr = semaphore->gpu_addr;
- u32 s = emit_wait ? 0 : 1;
-
- radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_SEMAPHORE, 0, s, 0));
- radeon_ring_write(ring, addr & 0xfffffffc);
- radeon_ring_write(ring, upper_32_bits(addr) & 0xff);
-}
-
/**
* r600_copy_cpdma - copy pages using the CP DMA engine
*
return r;
}
-/**
- * r600_copy_dma - copy pages using the DMA engine
- *
- * @rdev: radeon_device pointer
- * @src_offset: src GPU address
- * @dst_offset: dst GPU address
- * @num_gpu_pages: number of GPU pages to xfer
- * @fence: radeon fence object
- *
- * Copy GPU paging using the DMA engine (r6xx).
- * Used by the radeon ttm implementation to move pages if
- * registered as the asic copy callback.
- */
-int r600_copy_dma(struct radeon_device *rdev,
- uint64_t src_offset, uint64_t dst_offset,
- unsigned num_gpu_pages,
- struct radeon_fence **fence)
-{
- struct radeon_semaphore *sem = NULL;
- int ring_index = rdev->asic->copy.dma_ring_index;
- struct radeon_ring *ring = &rdev->ring[ring_index];
- u32 size_in_dw, cur_size_in_dw;
- int i, num_loops;
- int r = 0;
-
- r = radeon_semaphore_create(rdev, &sem);
- if (r) {
- DRM_ERROR("radeon: moving bo (%d).\n", r);
- return r;
- }
-
- size_in_dw = (num_gpu_pages << RADEON_GPU_PAGE_SHIFT) / 4;
- num_loops = DIV_ROUND_UP(size_in_dw, 0xFFFE);
- r = radeon_ring_lock(rdev, ring, num_loops * 4 + 8);
- if (r) {
- DRM_ERROR("radeon: moving bo (%d).\n", r);
- radeon_semaphore_free(rdev, &sem, NULL);
- return r;
- }
-
- if (radeon_fence_need_sync(*fence, ring->idx)) {
- radeon_semaphore_sync_rings(rdev, sem, (*fence)->ring,
- ring->idx);
- radeon_fence_note_sync(*fence, ring->idx);
- } else {
- radeon_semaphore_free(rdev, &sem, NULL);
- }
-
- for (i = 0; i < num_loops; i++) {
- cur_size_in_dw = size_in_dw;
- if (cur_size_in_dw > 0xFFFE)
- cur_size_in_dw = 0xFFFE;
- size_in_dw -= cur_size_in_dw;
- radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_COPY, 0, 0, cur_size_in_dw));
- radeon_ring_write(ring, dst_offset & 0xfffffffc);
- radeon_ring_write(ring, src_offset & 0xfffffffc);
- radeon_ring_write(ring, (((upper_32_bits(dst_offset) & 0xff) << 16) |
- (upper_32_bits(src_offset) & 0xff)));
- src_offset += cur_size_in_dw * 4;
- dst_offset += cur_size_in_dw * 4;
- }
-
- r = radeon_fence_emit(rdev, fence, ring->idx);
- if (r) {
- radeon_ring_unlock_undo(rdev, ring);
- return r;
- }
-
- radeon_ring_unlock_commit(rdev, ring);
- radeon_semaphore_free(rdev, &sem, *fence);
-
- return r;
-}
-
int r600_set_surface_reg(struct radeon_device *rdev, int reg,
uint32_t tiling_flags, uint32_t pitch,
uint32_t offset, uint32_t obj_size)
return r;
}
-/**
- * r600_dma_ib_test - test an IB on the DMA engine
- *
- * @rdev: radeon_device pointer
- * @ring: radeon_ring structure holding ring information
- *
- * Test a simple IB in the DMA ring (r6xx-SI).
- * Returns 0 on success, error on failure.
- */
-int r600_dma_ib_test(struct radeon_device *rdev, struct radeon_ring *ring)
-{
- struct radeon_ib ib;
- unsigned i;
- int r;
- void __iomem *ptr = (void *)rdev->vram_scratch.ptr;
- u32 tmp = 0;
-
- if (!ptr) {
- DRM_ERROR("invalid vram scratch pointer\n");
- return -EINVAL;
- }
-
- tmp = 0xCAFEDEAD;
- writel(tmp, ptr);
-
- r = radeon_ib_get(rdev, ring->idx, &ib, NULL, 256);
- if (r) {
- DRM_ERROR("radeon: failed to get ib (%d).\n", r);
- return r;
- }
-
- ib.ptr[0] = DMA_PACKET(DMA_PACKET_WRITE, 0, 0, 1);
- ib.ptr[1] = rdev->vram_scratch.gpu_addr & 0xfffffffc;
- ib.ptr[2] = upper_32_bits(rdev->vram_scratch.gpu_addr) & 0xff;
- ib.ptr[3] = 0xDEADBEEF;
- ib.length_dw = 4;
-
- r = radeon_ib_schedule(rdev, &ib, NULL);
- if (r) {
- radeon_ib_free(rdev, &ib);
- DRM_ERROR("radeon: failed to schedule ib (%d).\n", r);
- return r;
- }
- r = radeon_fence_wait(ib.fence, false);
- if (r) {
- DRM_ERROR("radeon: fence wait failed (%d).\n", r);
- return r;
- }
- for (i = 0; i < rdev->usec_timeout; i++) {
- tmp = readl(ptr);
- if (tmp == 0xDEADBEEF)
- break;
- DRM_UDELAY(1);
- }
- if (i < rdev->usec_timeout) {
- DRM_INFO("ib test on ring %d succeeded in %u usecs\n", ib.fence->ring, i);
- } else {
- DRM_ERROR("radeon: ib test failed (0x%08X)\n", tmp);
- r = -EINVAL;
- }
- radeon_ib_free(rdev, &ib);
- return r;
-}
-
-/**
- * r600_dma_ring_ib_execute - Schedule an IB on the DMA engine
- *
- * @rdev: radeon_device pointer
- * @ib: IB object to schedule
- *
- * Schedule an IB in the DMA ring (r6xx-r7xx).
- */
-void r600_dma_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib)
-{
- struct radeon_ring *ring = &rdev->ring[ib->ring];
-
- if (rdev->wb.enabled) {
- u32 next_rptr = ring->wptr + 4;
- while ((next_rptr & 7) != 5)
- next_rptr++;
- next_rptr += 3;
- radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_WRITE, 0, 0, 1));
- radeon_ring_write(ring, ring->next_rptr_gpu_addr & 0xfffffffc);
- radeon_ring_write(ring, upper_32_bits(ring->next_rptr_gpu_addr) & 0xff);
- radeon_ring_write(ring, next_rptr);
- }
-
- /* The indirect buffer packet must end on an 8 DW boundary in the DMA ring.
- * Pad as necessary with NOPs.
- */
- while ((ring->wptr & 7) != 5)
- radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_NOP, 0, 0, 0));
- radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_INDIRECT_BUFFER, 0, 0, 0));
- radeon_ring_write(ring, (ib->gpu_addr & 0xFFFFFFE0));
- radeon_ring_write(ring, (ib->length_dw << 16) | (upper_32_bits(ib->gpu_addr) & 0xFF));
-
-}
-
/*
* Interrupts
*
--- /dev/null
+/*
+ * 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 <drm/drmP.h>
+#include "radeon.h"
+#include "radeon_asic.h"
+#include "r600d.h"
+
+u32 r600_gpu_check_soft_reset(struct radeon_device *rdev);
+
+/*
+ * DMA
+ * Starting with R600, the GPU has an asynchronous
+ * DMA engine. The programming model is very similar
+ * to the 3D engine (ring buffer, IBs, etc.), but the
+ * DMA controller has it's own packet format that is
+ * different form the PM4 format used by the 3D engine.
+ * It supports copying data, writing embedded data,
+ * solid fills, and a number of other things. It also
+ * has support for tiling/detiling of buffers.
+ */
+
+/**
+ * r600_dma_get_rptr - get the current read pointer
+ *
+ * @rdev: radeon_device pointer
+ * @ring: radeon ring pointer
+ *
+ * Get the current rptr from the hardware (r6xx+).
+ */
+uint32_t r600_dma_get_rptr(struct radeon_device *rdev,
+ struct radeon_ring *ring)
+{
+ return (radeon_ring_generic_get_rptr(rdev, ring) & 0x3fffc) >> 2;
+}
+
+/**
+ * r600_dma_get_wptr - get the current write pointer
+ *
+ * @rdev: radeon_device pointer
+ * @ring: radeon ring pointer
+ *
+ * Get the current wptr from the hardware (r6xx+).
+ */
+uint32_t r600_dma_get_wptr(struct radeon_device *rdev,
+ struct radeon_ring *ring)
+{
+ return (RREG32(ring->wptr_reg) & 0x3fffc) >> 2;
+}
+
+/**
+ * r600_dma_set_wptr - commit the write pointer
+ *
+ * @rdev: radeon_device pointer
+ * @ring: radeon ring pointer
+ *
+ * Write the wptr back to the hardware (r6xx+).
+ */
+void r600_dma_set_wptr(struct radeon_device *rdev,
+ struct radeon_ring *ring)
+{
+ WREG32(ring->wptr_reg, (ring->wptr << 2) & 0x3fffc);
+}
+
+/**
+ * r600_dma_stop - stop the async dma engine
+ *
+ * @rdev: radeon_device pointer
+ *
+ * Stop the async dma engine (r6xx-evergreen).
+ */
+void r600_dma_stop(struct radeon_device *rdev)
+{
+ u32 rb_cntl = RREG32(DMA_RB_CNTL);
+
+ radeon_ttm_set_active_vram_size(rdev, rdev->mc.visible_vram_size);
+
+ rb_cntl &= ~DMA_RB_ENABLE;
+ WREG32(DMA_RB_CNTL, rb_cntl);
+
+ rdev->ring[R600_RING_TYPE_DMA_INDEX].ready = false;
+}
+
+/**
+ * r600_dma_resume - setup and start the async dma engine
+ *
+ * @rdev: radeon_device pointer
+ *
+ * Set up the DMA ring buffer and enable it. (r6xx-evergreen).
+ * Returns 0 for success, error for failure.
+ */
+int r600_dma_resume(struct radeon_device *rdev)
+{
+ struct radeon_ring *ring = &rdev->ring[R600_RING_TYPE_DMA_INDEX];
+ u32 rb_cntl, dma_cntl, ib_cntl;
+ u32 rb_bufsz;
+ int r;
+
+ /* Reset dma */
+ if (rdev->family >= CHIP_RV770)
+ WREG32(SRBM_SOFT_RESET, RV770_SOFT_RESET_DMA);
+ else
+ WREG32(SRBM_SOFT_RESET, SOFT_RESET_DMA);
+ RREG32(SRBM_SOFT_RESET);
+ udelay(50);
+ WREG32(SRBM_SOFT_RESET, 0);
+
+ WREG32(DMA_SEM_INCOMPLETE_TIMER_CNTL, 0);
+ WREG32(DMA_SEM_WAIT_FAIL_TIMER_CNTL, 0);
+
+ /* Set ring buffer size in dwords */
+ rb_bufsz = drm_order(ring->ring_size / 4);
+ rb_cntl = rb_bufsz << 1;
+#ifdef __BIG_ENDIAN
+ rb_cntl |= DMA_RB_SWAP_ENABLE | DMA_RPTR_WRITEBACK_SWAP_ENABLE;
+#endif
+ WREG32(DMA_RB_CNTL, rb_cntl);
+
+ /* Initialize the ring buffer's read and write pointers */
+ WREG32(DMA_RB_RPTR, 0);
+ WREG32(DMA_RB_WPTR, 0);
+
+ /* set the wb address whether it's enabled or not */
+ WREG32(DMA_RB_RPTR_ADDR_HI,
+ upper_32_bits(rdev->wb.gpu_addr + R600_WB_DMA_RPTR_OFFSET) & 0xFF);
+ WREG32(DMA_RB_RPTR_ADDR_LO,
+ ((rdev->wb.gpu_addr + R600_WB_DMA_RPTR_OFFSET) & 0xFFFFFFFC));
+
+ if (rdev->wb.enabled)
+ rb_cntl |= DMA_RPTR_WRITEBACK_ENABLE;
+
+ WREG32(DMA_RB_BASE, ring->gpu_addr >> 8);
+
+ /* enable DMA IBs */
+ ib_cntl = DMA_IB_ENABLE;
+#ifdef __BIG_ENDIAN
+ ib_cntl |= DMA_IB_SWAP_ENABLE;
+#endif
+ WREG32(DMA_IB_CNTL, ib_cntl);
+
+ dma_cntl = RREG32(DMA_CNTL);
+ dma_cntl &= ~CTXEMPTY_INT_ENABLE;
+ WREG32(DMA_CNTL, dma_cntl);
+
+ if (rdev->family >= CHIP_RV770)
+ WREG32(DMA_MODE, 1);
+
+ ring->wptr = 0;
+ WREG32(DMA_RB_WPTR, ring->wptr << 2);
+
+ ring->rptr = RREG32(DMA_RB_RPTR) >> 2;
+
+ WREG32(DMA_RB_CNTL, rb_cntl | DMA_RB_ENABLE);
+
+ ring->ready = true;
+
+ r = radeon_ring_test(rdev, R600_RING_TYPE_DMA_INDEX, ring);
+ if (r) {
+ ring->ready = false;
+ return r;
+ }
+
+ radeon_ttm_set_active_vram_size(rdev, rdev->mc.real_vram_size);
+
+ return 0;
+}
+
+/**
+ * r600_dma_fini - tear down the async dma engine
+ *
+ * @rdev: radeon_device pointer
+ *
+ * Stop the async dma engine and free the ring (r6xx-evergreen).
+ */
+void r600_dma_fini(struct radeon_device *rdev)
+{
+ r600_dma_stop(rdev);
+ radeon_ring_fini(rdev, &rdev->ring[R600_RING_TYPE_DMA_INDEX]);
+}
+
+/**
+ * r600_dma_is_lockup - Check if the DMA engine is locked up
+ *
+ * @rdev: radeon_device pointer
+ * @ring: radeon_ring structure holding ring information
+ *
+ * Check if the async DMA engine is locked up.
+ * Returns true if the engine appears to be locked up, false if not.
+ */
+bool r600_dma_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
+{
+ u32 reset_mask = r600_gpu_check_soft_reset(rdev);
+
+ if (!(reset_mask & RADEON_RESET_DMA)) {
+ radeon_ring_lockup_update(ring);
+ return false;
+ }
+ /* force ring activities */
+ radeon_ring_force_activity(rdev, ring);
+ return radeon_ring_test_lockup(rdev, ring);
+}
+
+
+/**
+ * r600_dma_ring_test - simple async dma engine test
+ *
+ * @rdev: radeon_device pointer
+ * @ring: radeon_ring structure holding ring information
+ *
+ * Test the DMA engine by writing using it to write an
+ * value to memory. (r6xx-SI).
+ * Returns 0 for success, error for failure.
+ */
+int r600_dma_ring_test(struct radeon_device *rdev,
+ struct radeon_ring *ring)
+{
+ unsigned i;
+ int r;
+ void __iomem *ptr = (void *)rdev->vram_scratch.ptr;
+ u32 tmp;
+
+ if (!ptr) {
+ DRM_ERROR("invalid vram scratch pointer\n");
+ return -EINVAL;
+ }
+
+ tmp = 0xCAFEDEAD;
+ writel(tmp, ptr);
+
+ r = radeon_ring_lock(rdev, ring, 4);
+ if (r) {
+ DRM_ERROR("radeon: dma failed to lock ring %d (%d).\n", ring->idx, r);
+ return r;
+ }
+ radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_WRITE, 0, 0, 1));
+ radeon_ring_write(ring, rdev->vram_scratch.gpu_addr & 0xfffffffc);
+ radeon_ring_write(ring, upper_32_bits(rdev->vram_scratch.gpu_addr) & 0xff);
+ radeon_ring_write(ring, 0xDEADBEEF);
+ radeon_ring_unlock_commit(rdev, ring);
+
+ for (i = 0; i < rdev->usec_timeout; i++) {
+ tmp = readl(ptr);
+ if (tmp == 0xDEADBEEF)
+ break;
+ DRM_UDELAY(1);
+ }
+
+ if (i < rdev->usec_timeout) {
+ DRM_INFO("ring test on %d succeeded in %d usecs\n", ring->idx, i);
+ } else {
+ DRM_ERROR("radeon: ring %d test failed (0x%08X)\n",
+ ring->idx, tmp);
+ r = -EINVAL;
+ }
+ return r;
+}
+
+/**
+ * r600_dma_fence_ring_emit - emit a fence on the DMA ring
+ *
+ * @rdev: radeon_device pointer
+ * @fence: radeon 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 (r6xx-r7xx).
+ */
+void r600_dma_fence_ring_emit(struct radeon_device *rdev,
+ struct radeon_fence *fence)
+{
+ struct radeon_ring *ring = &rdev->ring[fence->ring];
+ u64 addr = rdev->fence_drv[fence->ring].gpu_addr;
+
+ /* write the fence */
+ radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_FENCE, 0, 0, 0));
+ radeon_ring_write(ring, addr & 0xfffffffc);
+ radeon_ring_write(ring, (upper_32_bits(addr) & 0xff));
+ radeon_ring_write(ring, lower_32_bits(fence->seq));
+ /* generate an interrupt */
+ radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_TRAP, 0, 0, 0));
+}
+
+/**
+ * r600_dma_semaphore_ring_emit - emit a semaphore on the dma ring
+ *
+ * @rdev: radeon_device pointer
+ * @ring: radeon_ring structure holding ring information
+ * @semaphore: radeon semaphore object
+ * @emit_wait: wait or signal semaphore
+ *
+ * Add a DMA semaphore packet to the ring wait on or signal
+ * other rings (r6xx-SI).
+ */
+void r600_dma_semaphore_ring_emit(struct radeon_device *rdev,
+ struct radeon_ring *ring,
+ struct radeon_semaphore *semaphore,
+ bool emit_wait)
+{
+ u64 addr = semaphore->gpu_addr;
+ u32 s = emit_wait ? 0 : 1;
+
+ radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_SEMAPHORE, 0, s, 0));
+ radeon_ring_write(ring, addr & 0xfffffffc);
+ radeon_ring_write(ring, upper_32_bits(addr) & 0xff);
+}
+
+/**
+ * r600_dma_ib_test - test an IB on the DMA engine
+ *
+ * @rdev: radeon_device pointer
+ * @ring: radeon_ring structure holding ring information
+ *
+ * Test a simple IB in the DMA ring (r6xx-SI).
+ * Returns 0 on success, error on failure.
+ */
+int r600_dma_ib_test(struct radeon_device *rdev, struct radeon_ring *ring)
+{
+ struct radeon_ib ib;
+ unsigned i;
+ int r;
+ void __iomem *ptr = (void *)rdev->vram_scratch.ptr;
+ u32 tmp = 0;
+
+ if (!ptr) {
+ DRM_ERROR("invalid vram scratch pointer\n");
+ return -EINVAL;
+ }
+
+ tmp = 0xCAFEDEAD;
+ writel(tmp, ptr);
+
+ r = radeon_ib_get(rdev, ring->idx, &ib, NULL, 256);
+ if (r) {
+ DRM_ERROR("radeon: failed to get ib (%d).\n", r);
+ return r;
+ }
+
+ ib.ptr[0] = DMA_PACKET(DMA_PACKET_WRITE, 0, 0, 1);
+ ib.ptr[1] = rdev->vram_scratch.gpu_addr & 0xfffffffc;
+ ib.ptr[2] = upper_32_bits(rdev->vram_scratch.gpu_addr) & 0xff;
+ ib.ptr[3] = 0xDEADBEEF;
+ ib.length_dw = 4;
+
+ r = radeon_ib_schedule(rdev, &ib, NULL);
+ if (r) {
+ radeon_ib_free(rdev, &ib);
+ DRM_ERROR("radeon: failed to schedule ib (%d).\n", r);
+ return r;
+ }
+ r = radeon_fence_wait(ib.fence, false);
+ if (r) {
+ DRM_ERROR("radeon: fence wait failed (%d).\n", r);
+ return r;
+ }
+ for (i = 0; i < rdev->usec_timeout; i++) {
+ tmp = readl(ptr);
+ if (tmp == 0xDEADBEEF)
+ break;
+ DRM_UDELAY(1);
+ }
+ if (i < rdev->usec_timeout) {
+ DRM_INFO("ib test on ring %d succeeded in %u usecs\n", ib.fence->ring, i);
+ } else {
+ DRM_ERROR("radeon: ib test failed (0x%08X)\n", tmp);
+ r = -EINVAL;
+ }
+ radeon_ib_free(rdev, &ib);
+ return r;
+}
+
+/**
+ * r600_dma_ring_ib_execute - Schedule an IB on the DMA engine
+ *
+ * @rdev: radeon_device pointer
+ * @ib: IB object to schedule
+ *
+ * Schedule an IB in the DMA ring (r6xx-r7xx).
+ */
+void r600_dma_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib)
+{
+ struct radeon_ring *ring = &rdev->ring[ib->ring];
+
+ if (rdev->wb.enabled) {
+ u32 next_rptr = ring->wptr + 4;
+ while ((next_rptr & 7) != 5)
+ next_rptr++;
+ next_rptr += 3;
+ radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_WRITE, 0, 0, 1));
+ radeon_ring_write(ring, ring->next_rptr_gpu_addr & 0xfffffffc);
+ radeon_ring_write(ring, upper_32_bits(ring->next_rptr_gpu_addr) & 0xff);
+ radeon_ring_write(ring, next_rptr);
+ }
+
+ /* The indirect buffer packet must end on an 8 DW boundary in the DMA ring.
+ * Pad as necessary with NOPs.
+ */
+ while ((ring->wptr & 7) != 5)
+ radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_NOP, 0, 0, 0));
+ radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_INDIRECT_BUFFER, 0, 0, 0));
+ radeon_ring_write(ring, (ib->gpu_addr & 0xFFFFFFE0));
+ radeon_ring_write(ring, (ib->length_dw << 16) | (upper_32_bits(ib->gpu_addr) & 0xFF));
+
+}
+
+/**
+ * r600_copy_dma - copy pages using the DMA engine
+ *
+ * @rdev: radeon_device pointer
+ * @src_offset: src GPU address
+ * @dst_offset: dst GPU address
+ * @num_gpu_pages: number of GPU pages to xfer
+ * @fence: radeon fence object
+ *
+ * Copy GPU paging using the DMA engine (r6xx).
+ * Used by the radeon ttm implementation to move pages if
+ * registered as the asic copy callback.
+ */
+int r600_copy_dma(struct radeon_device *rdev,
+ uint64_t src_offset, uint64_t dst_offset,
+ unsigned num_gpu_pages,
+ struct radeon_fence **fence)
+{
+ struct radeon_semaphore *sem = NULL;
+ int ring_index = rdev->asic->copy.dma_ring_index;
+ struct radeon_ring *ring = &rdev->ring[ring_index];
+ u32 size_in_dw, cur_size_in_dw;
+ int i, num_loops;
+ int r = 0;
+
+ r = radeon_semaphore_create(rdev, &sem);
+ if (r) {
+ DRM_ERROR("radeon: moving bo (%d).\n", r);
+ return r;
+ }
+
+ size_in_dw = (num_gpu_pages << RADEON_GPU_PAGE_SHIFT) / 4;
+ num_loops = DIV_ROUND_UP(size_in_dw, 0xFFFE);
+ r = radeon_ring_lock(rdev, ring, num_loops * 4 + 8);
+ if (r) {
+ DRM_ERROR("radeon: moving bo (%d).\n", r);
+ radeon_semaphore_free(rdev, &sem, NULL);
+ return r;
+ }
+
+ if (radeon_fence_need_sync(*fence, ring->idx)) {
+ radeon_semaphore_sync_rings(rdev, sem, (*fence)->ring,
+ ring->idx);
+ radeon_fence_note_sync(*fence, ring->idx);
+ } else {
+ radeon_semaphore_free(rdev, &sem, NULL);
+ }
+
+ for (i = 0; i < num_loops; i++) {
+ cur_size_in_dw = size_in_dw;
+ if (cur_size_in_dw > 0xFFFE)
+ cur_size_in_dw = 0xFFFE;
+ size_in_dw -= cur_size_in_dw;
+ radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_COPY, 0, 0, cur_size_in_dw));
+ radeon_ring_write(ring, dst_offset & 0xfffffffc);
+ radeon_ring_write(ring, src_offset & 0xfffffffc);
+ radeon_ring_write(ring, (((upper_32_bits(dst_offset) & 0xff) << 16) |
+ (upper_32_bits(src_offset) & 0xff)));
+ src_offset += cur_size_in_dw * 4;
+ dst_offset += cur_size_in_dw * 4;
+ }
+
+ r = radeon_fence_emit(rdev, fence, ring->idx);
+ if (r) {
+ radeon_ring_unlock_undo(rdev, ring);
+ return r;
+ }
+
+ radeon_ring_unlock_commit(rdev, ring);
+ radeon_semaphore_free(rdev, &sem, *fence);
+
+ return r;
+}
return 0;
}
-/**
- * rv770_copy_dma - copy pages using the DMA engine
- *
- * @rdev: radeon_device pointer
- * @src_offset: src GPU address
- * @dst_offset: dst GPU address
- * @num_gpu_pages: number of GPU pages to xfer
- * @fence: radeon fence object
- *
- * Copy GPU paging using the DMA engine (r7xx).
- * Used by the radeon ttm implementation to move pages if
- * registered as the asic copy callback.
- */
-int rv770_copy_dma(struct radeon_device *rdev,
- uint64_t src_offset, uint64_t dst_offset,
- unsigned num_gpu_pages,
- struct radeon_fence **fence)
-{
- struct radeon_semaphore *sem = NULL;
- int ring_index = rdev->asic->copy.dma_ring_index;
- struct radeon_ring *ring = &rdev->ring[ring_index];
- u32 size_in_dw, cur_size_in_dw;
- int i, num_loops;
- int r = 0;
-
- r = radeon_semaphore_create(rdev, &sem);
- if (r) {
- DRM_ERROR("radeon: moving bo (%d).\n", r);
- return r;
- }
-
- size_in_dw = (num_gpu_pages << RADEON_GPU_PAGE_SHIFT) / 4;
- num_loops = DIV_ROUND_UP(size_in_dw, 0xFFFF);
- r = radeon_ring_lock(rdev, ring, num_loops * 5 + 8);
- if (r) {
- DRM_ERROR("radeon: moving bo (%d).\n", r);
- radeon_semaphore_free(rdev, &sem, NULL);
- return r;
- }
-
- if (radeon_fence_need_sync(*fence, ring->idx)) {
- radeon_semaphore_sync_rings(rdev, sem, (*fence)->ring,
- ring->idx);
- radeon_fence_note_sync(*fence, ring->idx);
- } else {
- radeon_semaphore_free(rdev, &sem, NULL);
- }
-
- for (i = 0; i < num_loops; i++) {
- cur_size_in_dw = size_in_dw;
- if (cur_size_in_dw > 0xFFFF)
- cur_size_in_dw = 0xFFFF;
- size_in_dw -= cur_size_in_dw;
- radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_COPY, 0, 0, cur_size_in_dw));
- radeon_ring_write(ring, dst_offset & 0xfffffffc);
- radeon_ring_write(ring, src_offset & 0xfffffffc);
- radeon_ring_write(ring, upper_32_bits(dst_offset) & 0xff);
- radeon_ring_write(ring, upper_32_bits(src_offset) & 0xff);
- src_offset += cur_size_in_dw * 4;
- dst_offset += cur_size_in_dw * 4;
- }
-
- r = radeon_fence_emit(rdev, fence, ring->idx);
- if (r) {
- radeon_ring_unlock_undo(rdev, ring);
- return r;
- }
-
- radeon_ring_unlock_commit(rdev, ring);
- radeon_semaphore_free(rdev, &sem, *fence);
-
- return r;
-}
-
static int rv770_startup(struct radeon_device *rdev)
{
struct radeon_ring *ring;
--- /dev/null
+/*
+ * 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 <drm/drmP.h>
+#include "radeon.h"
+#include "radeon_asic.h"
+#include "rv770d.h"
+
+/**
+ * rv770_copy_dma - copy pages using the DMA engine
+ *
+ * @rdev: radeon_device pointer
+ * @src_offset: src GPU address
+ * @dst_offset: dst GPU address
+ * @num_gpu_pages: number of GPU pages to xfer
+ * @fence: radeon fence object
+ *
+ * Copy GPU paging using the DMA engine (r7xx).
+ * Used by the radeon ttm implementation to move pages if
+ * registered as the asic copy callback.
+ */
+int rv770_copy_dma(struct radeon_device *rdev,
+ uint64_t src_offset, uint64_t dst_offset,
+ unsigned num_gpu_pages,
+ struct radeon_fence **fence)
+{
+ struct radeon_semaphore *sem = NULL;
+ int ring_index = rdev->asic->copy.dma_ring_index;
+ struct radeon_ring *ring = &rdev->ring[ring_index];
+ u32 size_in_dw, cur_size_in_dw;
+ int i, num_loops;
+ int r = 0;
+
+ r = radeon_semaphore_create(rdev, &sem);
+ if (r) {
+ DRM_ERROR("radeon: moving bo (%d).\n", r);
+ return r;
+ }
+
+ size_in_dw = (num_gpu_pages << RADEON_GPU_PAGE_SHIFT) / 4;
+ num_loops = DIV_ROUND_UP(size_in_dw, 0xFFFF);
+ r = radeon_ring_lock(rdev, ring, num_loops * 5 + 8);
+ if (r) {
+ DRM_ERROR("radeon: moving bo (%d).\n", r);
+ radeon_semaphore_free(rdev, &sem, NULL);
+ return r;
+ }
+
+ if (radeon_fence_need_sync(*fence, ring->idx)) {
+ radeon_semaphore_sync_rings(rdev, sem, (*fence)->ring,
+ ring->idx);
+ radeon_fence_note_sync(*fence, ring->idx);
+ } else {
+ radeon_semaphore_free(rdev, &sem, NULL);
+ }
+
+ for (i = 0; i < num_loops; i++) {
+ cur_size_in_dw = size_in_dw;
+ if (cur_size_in_dw > 0xFFFF)
+ cur_size_in_dw = 0xFFFF;
+ size_in_dw -= cur_size_in_dw;
+ radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_COPY, 0, 0, cur_size_in_dw));
+ radeon_ring_write(ring, dst_offset & 0xfffffffc);
+ radeon_ring_write(ring, src_offset & 0xfffffffc);
+ radeon_ring_write(ring, upper_32_bits(dst_offset) & 0xff);
+ radeon_ring_write(ring, upper_32_bits(src_offset) & 0xff);
+ src_offset += cur_size_in_dw * 4;
+ dst_offset += cur_size_in_dw * 4;
+ }
+
+ r = radeon_fence_emit(rdev, fence, ring->idx);
+ if (r) {
+ radeon_ring_unlock_undo(rdev, ring);
+ return r;
+ }
+
+ radeon_ring_unlock_commit(rdev, ring);
+ radeon_semaphore_free(rdev, &sem, *fence);
+
+ return r;
+}
extern u32 evergreen_get_number_of_dram_channels(struct radeon_device *rdev);
extern void evergreen_print_gpu_status_regs(struct radeon_device *rdev);
extern bool evergreen_is_display_hung(struct radeon_device *rdev);
+extern void si_dma_vm_set_page(struct radeon_device *rdev,
+ struct radeon_ib *ib,
+ uint64_t pe,
+ uint64_t addr, unsigned count,
+ uint32_t incr, uint32_t flags);
static const u32 verde_rlc_save_restore_register_list[] =
{
return 0;
}
-static u32 si_gpu_check_soft_reset(struct radeon_device *rdev)
+u32 si_gpu_check_soft_reset(struct radeon_device *rdev)
{
u32 reset_mask = 0;
u32 tmp;
return radeon_ring_test_lockup(rdev, ring);
}
-/**
- * si_dma_is_lockup - Check if the DMA engine is locked up
- *
- * @rdev: radeon_device pointer
- * @ring: radeon_ring structure holding ring information
- *
- * Check if the async DMA engine is locked up.
- * Returns true if the engine appears to be locked up, false if not.
- */
-bool si_dma_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
-{
- u32 reset_mask = si_gpu_check_soft_reset(rdev);
- u32 mask;
-
- if (ring->idx == R600_RING_TYPE_DMA_INDEX)
- mask = RADEON_RESET_DMA;
- else
- mask = RADEON_RESET_DMA1;
-
- if (!(reset_mask & mask)) {
- radeon_ring_lockup_update(ring);
- return false;
- }
- /* force ring activities */
- radeon_ring_force_activity(rdev, ring);
- return radeon_ring_test_lockup(rdev, ring);
-}
-
/* MC */
static void si_mc_program(struct radeon_device *rdev)
{
}
} else {
/* DMA */
- if (flags & RADEON_VM_PAGE_SYSTEM) {
- while (count) {
- ndw = count * 2;
- if (ndw > 0xFFFFE)
- ndw = 0xFFFFE;
-
- /* for non-physically contiguous pages (system) */
- ib->ptr[ib->length_dw++] = DMA_PACKET(DMA_PACKET_WRITE, 0, 0, 0, ndw);
- ib->ptr[ib->length_dw++] = pe;
- ib->ptr[ib->length_dw++] = upper_32_bits(pe) & 0xff;
- for (; ndw > 0; ndw -= 2, --count, pe += 8) {
- if (flags & RADEON_VM_PAGE_SYSTEM) {
- value = radeon_vm_map_gart(rdev, addr);
- value &= 0xFFFFFFFFFFFFF000ULL;
- } else if (flags & RADEON_VM_PAGE_VALID) {
- value = addr;
- } else {
- value = 0;
- }
- addr += incr;
- value |= r600_flags;
- ib->ptr[ib->length_dw++] = value;
- ib->ptr[ib->length_dw++] = upper_32_bits(value);
- }
- }
- } else {
- while (count) {
- ndw = count * 2;
- if (ndw > 0xFFFFE)
- ndw = 0xFFFFE;
-
- if (flags & RADEON_VM_PAGE_VALID)
- value = addr;
- else
- value = 0;
- /* for physically contiguous pages (vram) */
- ib->ptr[ib->length_dw++] = DMA_PTE_PDE_PACKET(ndw);
- ib->ptr[ib->length_dw++] = pe; /* dst addr */
- ib->ptr[ib->length_dw++] = upper_32_bits(pe) & 0xff;
- ib->ptr[ib->length_dw++] = r600_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;
- pe += ndw * 4;
- addr += (ndw / 2) * incr;
- count -= ndw / 2;
- }
- }
- while (ib->length_dw & 0x7)
- ib->ptr[ib->length_dw++] = DMA_PACKET(DMA_PACKET_NOP, 0, 0, 0, 0);
+ si_dma_vm_set_page(rdev, ib, pe, addr, count, incr, flags);
}
}
radeon_ring_write(ring, 0x0);
}
-void si_dma_vm_flush(struct radeon_device *rdev, int ridx, struct radeon_vm *vm)
-{
- struct radeon_ring *ring = &rdev->ring[ridx];
-
- if (vm == NULL)
- return;
-
- radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_SRBM_WRITE, 0, 0, 0, 0));
- if (vm->id < 8) {
- radeon_ring_write(ring, (0xf << 16) | ((VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + (vm->id << 2)) >> 2));
- } else {
- radeon_ring_write(ring, (0xf << 16) | ((VM_CONTEXT8_PAGE_TABLE_BASE_ADDR + ((vm->id - 8) << 2)) >> 2));
- }
- radeon_ring_write(ring, vm->pd_gpu_addr >> 12);
-
- /* flush hdp cache */
- radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_SRBM_WRITE, 0, 0, 0, 0));
- radeon_ring_write(ring, (0xf << 16) | (HDP_MEM_COHERENCY_FLUSH_CNTL >> 2));
- radeon_ring_write(ring, 1);
-
- /* bits 0-7 are the VM contexts0-7 */
- radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_SRBM_WRITE, 0, 0, 0, 0));
- radeon_ring_write(ring, (0xf << 16) | (VM_INVALIDATE_REQUEST >> 2));
- radeon_ring_write(ring, 1 << vm->id);
-}
-
/*
* Power and clock gating
*/
return IRQ_HANDLED;
}
-/**
- * si_copy_dma - copy pages using the DMA engine
- *
- * @rdev: radeon_device pointer
- * @src_offset: src GPU address
- * @dst_offset: dst GPU address
- * @num_gpu_pages: number of GPU pages to xfer
- * @fence: radeon fence object
- *
- * Copy GPU paging using the DMA engine (SI).
- * Used by the radeon ttm implementation to move pages if
- * registered as the asic copy callback.
- */
-int si_copy_dma(struct radeon_device *rdev,
- uint64_t src_offset, uint64_t dst_offset,
- unsigned num_gpu_pages,
- struct radeon_fence **fence)
-{
- struct radeon_semaphore *sem = NULL;
- int ring_index = rdev->asic->copy.dma_ring_index;
- struct radeon_ring *ring = &rdev->ring[ring_index];
- u32 size_in_bytes, cur_size_in_bytes;
- int i, num_loops;
- int r = 0;
-
- r = radeon_semaphore_create(rdev, &sem);
- if (r) {
- DRM_ERROR("radeon: moving bo (%d).\n", r);
- return r;
- }
-
- size_in_bytes = (num_gpu_pages << RADEON_GPU_PAGE_SHIFT);
- num_loops = DIV_ROUND_UP(size_in_bytes, 0xfffff);
- r = radeon_ring_lock(rdev, ring, num_loops * 5 + 11);
- if (r) {
- DRM_ERROR("radeon: moving bo (%d).\n", r);
- radeon_semaphore_free(rdev, &sem, NULL);
- return r;
- }
-
- if (radeon_fence_need_sync(*fence, ring->idx)) {
- radeon_semaphore_sync_rings(rdev, sem, (*fence)->ring,
- ring->idx);
- radeon_fence_note_sync(*fence, ring->idx);
- } else {
- radeon_semaphore_free(rdev, &sem, NULL);
- }
-
- for (i = 0; i < num_loops; i++) {
- cur_size_in_bytes = size_in_bytes;
- if (cur_size_in_bytes > 0xFFFFF)
- cur_size_in_bytes = 0xFFFFF;
- size_in_bytes -= cur_size_in_bytes;
- radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_COPY, 1, 0, 0, cur_size_in_bytes));
- radeon_ring_write(ring, dst_offset & 0xffffffff);
- radeon_ring_write(ring, src_offset & 0xffffffff);
- radeon_ring_write(ring, upper_32_bits(dst_offset) & 0xff);
- radeon_ring_write(ring, upper_32_bits(src_offset) & 0xff);
- src_offset += cur_size_in_bytes;
- dst_offset += cur_size_in_bytes;
- }
-
- r = radeon_fence_emit(rdev, fence, ring->idx);
- if (r) {
- radeon_ring_unlock_undo(rdev, ring);
- return r;
- }
-
- radeon_ring_unlock_commit(rdev, ring);
- radeon_semaphore_free(rdev, &sem, *fence);
-
- return r;
-}
-
/*
* startup/shutdown callbacks
*/
--- /dev/null
+/*
+ * 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 <drm/drmP.h>
+#include "radeon.h"
+#include "radeon_asic.h"
+#include "sid.h"
+
+u32 si_gpu_check_soft_reset(struct radeon_device *rdev);
+
+/**
+ * si_dma_is_lockup - Check if the DMA engine is locked up
+ *
+ * @rdev: radeon_device pointer
+ * @ring: radeon_ring structure holding ring information
+ *
+ * Check if the async DMA engine is locked up.
+ * Returns true if the engine appears to be locked up, false if not.
+ */
+bool si_dma_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
+{
+ u32 reset_mask = si_gpu_check_soft_reset(rdev);
+ u32 mask;
+
+ if (ring->idx == R600_RING_TYPE_DMA_INDEX)
+ mask = RADEON_RESET_DMA;
+ else
+ mask = RADEON_RESET_DMA1;
+
+ if (!(reset_mask & mask)) {
+ radeon_ring_lockup_update(ring);
+ return false;
+ }
+ /* force ring activities */
+ radeon_ring_force_activity(rdev, ring);
+ return radeon_ring_test_lockup(rdev, ring);
+}
+
+/**
+ * si_dma_vm_set_page - update the page tables using the DMA
+ *
+ * @rdev: radeon_device pointer
+ * @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 the DMA (SI).
+ */
+void si_dma_vm_set_page(struct radeon_device *rdev,
+ struct radeon_ib *ib,
+ uint64_t pe,
+ uint64_t addr, unsigned count,
+ uint32_t incr, uint32_t flags)
+{
+ uint32_t r600_flags = cayman_vm_page_flags(rdev, flags);
+ uint64_t value;
+ unsigned ndw;
+
+ if (flags & RADEON_VM_PAGE_SYSTEM) {
+ while (count) {
+ ndw = count * 2;
+ if (ndw > 0xFFFFE)
+ ndw = 0xFFFFE;
+
+ /* for non-physically contiguous pages (system) */
+ ib->ptr[ib->length_dw++] = DMA_PACKET(DMA_PACKET_WRITE, 0, 0, 0, ndw);
+ ib->ptr[ib->length_dw++] = pe;
+ ib->ptr[ib->length_dw++] = upper_32_bits(pe) & 0xff;
+ for (; ndw > 0; ndw -= 2, --count, pe += 8) {
+ if (flags & RADEON_VM_PAGE_SYSTEM) {
+ value = radeon_vm_map_gart(rdev, addr);
+ value &= 0xFFFFFFFFFFFFF000ULL;
+ } else if (flags & RADEON_VM_PAGE_VALID) {
+ value = addr;
+ } else {
+ value = 0;
+ }
+ addr += incr;
+ value |= r600_flags;
+ ib->ptr[ib->length_dw++] = value;
+ ib->ptr[ib->length_dw++] = upper_32_bits(value);
+ }
+ }
+ } else {
+ while (count) {
+ ndw = count * 2;
+ if (ndw > 0xFFFFE)
+ ndw = 0xFFFFE;
+
+ if (flags & RADEON_VM_PAGE_VALID)
+ value = addr;
+ else
+ value = 0;
+ /* for physically contiguous pages (vram) */
+ ib->ptr[ib->length_dw++] = DMA_PTE_PDE_PACKET(ndw);
+ ib->ptr[ib->length_dw++] = pe; /* dst addr */
+ ib->ptr[ib->length_dw++] = upper_32_bits(pe) & 0xff;
+ ib->ptr[ib->length_dw++] = r600_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;
+ pe += ndw * 4;
+ addr += (ndw / 2) * incr;
+ count -= ndw / 2;
+ }
+ }
+ while (ib->length_dw & 0x7)
+ ib->ptr[ib->length_dw++] = DMA_PACKET(DMA_PACKET_NOP, 0, 0, 0, 0);
+}
+
+void si_dma_vm_flush(struct radeon_device *rdev, int ridx, struct radeon_vm *vm)
+{
+ struct radeon_ring *ring = &rdev->ring[ridx];
+
+ if (vm == NULL)
+ return;
+
+ radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_SRBM_WRITE, 0, 0, 0, 0));
+ if (vm->id < 8) {
+ radeon_ring_write(ring, (0xf << 16) | ((VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + (vm->id << 2)) >> 2));
+ } else {
+ radeon_ring_write(ring, (0xf << 16) | ((VM_CONTEXT8_PAGE_TABLE_BASE_ADDR + ((vm->id - 8) << 2)) >> 2));
+ }
+ radeon_ring_write(ring, vm->pd_gpu_addr >> 12);
+
+ /* flush hdp cache */
+ radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_SRBM_WRITE, 0, 0, 0, 0));
+ radeon_ring_write(ring, (0xf << 16) | (HDP_MEM_COHERENCY_FLUSH_CNTL >> 2));
+ radeon_ring_write(ring, 1);
+
+ /* bits 0-7 are the VM contexts0-7 */
+ radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_SRBM_WRITE, 0, 0, 0, 0));
+ radeon_ring_write(ring, (0xf << 16) | (VM_INVALIDATE_REQUEST >> 2));
+ radeon_ring_write(ring, 1 << vm->id);
+}
+
+/**
+ * si_copy_dma - copy pages using the DMA engine
+ *
+ * @rdev: radeon_device pointer
+ * @src_offset: src GPU address
+ * @dst_offset: dst GPU address
+ * @num_gpu_pages: number of GPU pages to xfer
+ * @fence: radeon fence object
+ *
+ * Copy GPU paging using the DMA engine (SI).
+ * Used by the radeon ttm implementation to move pages if
+ * registered as the asic copy callback.
+ */
+int si_copy_dma(struct radeon_device *rdev,
+ uint64_t src_offset, uint64_t dst_offset,
+ unsigned num_gpu_pages,
+ struct radeon_fence **fence)
+{
+ struct radeon_semaphore *sem = NULL;
+ int ring_index = rdev->asic->copy.dma_ring_index;
+ struct radeon_ring *ring = &rdev->ring[ring_index];
+ u32 size_in_bytes, cur_size_in_bytes;
+ int i, num_loops;
+ int r = 0;
+
+ r = radeon_semaphore_create(rdev, &sem);
+ if (r) {
+ DRM_ERROR("radeon: moving bo (%d).\n", r);
+ return r;
+ }
+
+ size_in_bytes = (num_gpu_pages << RADEON_GPU_PAGE_SHIFT);
+ num_loops = DIV_ROUND_UP(size_in_bytes, 0xfffff);
+ r = radeon_ring_lock(rdev, ring, num_loops * 5 + 11);
+ if (r) {
+ DRM_ERROR("radeon: moving bo (%d).\n", r);
+ radeon_semaphore_free(rdev, &sem, NULL);
+ return r;
+ }
+
+ if (radeon_fence_need_sync(*fence, ring->idx)) {
+ radeon_semaphore_sync_rings(rdev, sem, (*fence)->ring,
+ ring->idx);
+ radeon_fence_note_sync(*fence, ring->idx);
+ } else {
+ radeon_semaphore_free(rdev, &sem, NULL);
+ }
+
+ for (i = 0; i < num_loops; i++) {
+ cur_size_in_bytes = size_in_bytes;
+ if (cur_size_in_bytes > 0xFFFFF)
+ cur_size_in_bytes = 0xFFFFF;
+ size_in_bytes -= cur_size_in_bytes;
+ radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_COPY, 1, 0, 0, cur_size_in_bytes));
+ radeon_ring_write(ring, dst_offset & 0xffffffff);
+ radeon_ring_write(ring, src_offset & 0xffffffff);
+ radeon_ring_write(ring, upper_32_bits(dst_offset) & 0xff);
+ radeon_ring_write(ring, upper_32_bits(src_offset) & 0xff);
+ src_offset += cur_size_in_bytes;
+ dst_offset += cur_size_in_bytes;
+ }
+
+ r = radeon_fence_emit(rdev, fence, ring->idx);
+ if (r) {
+ radeon_ring_unlock_undo(rdev, ring);
+ return r;
+ }
+
+ radeon_ring_unlock_commit(rdev, ring);
+ radeon_semaphore_free(rdev, &sem, *fence);
+
+ return r;
+}
+
projects / openwrt / staging / blogic.git / commitdiff