return ret;
}
- astbo->gem.driver_private = NULL;
astbo->bo.bdev = &ast->ttm.bdev;
+ astbo->bo.bdev->dev_mapping = dev->dev_mapping;
ast_ttm_placement(astbo, TTM_PL_FLAG_VRAM | TTM_PL_FLAG_SYSTEM);
return ret;
}
- cirrusbo->gem.driver_private = NULL;
cirrusbo->bo.bdev = &cirrus->ttm.bdev;
+ cirrusbo->bo.bdev->dev_mapping = dev->dev_mapping;
cirrus_ttm_placement(cirrusbo, TTM_PL_FLAG_VRAM | TTM_PL_FLAG_SYSTEM);
void i915_handle_error(struct drm_device *dev, bool wedged);
extern void intel_irq_init(struct drm_device *dev);
+ extern void intel_pm_init(struct drm_device *dev);
extern void intel_hpd_init(struct drm_device *dev);
-extern void intel_gt_init(struct drm_device *dev);
-extern void intel_gt_sanitize(struct drm_device *dev);
+extern void intel_pm_init(struct drm_device *dev);
-void i915_error_state_free(struct kref *error_ref);
+extern void intel_uncore_sanitize(struct drm_device *dev);
+extern void intel_uncore_early_sanitize(struct drm_device *dev);
+extern void intel_uncore_init(struct drm_device *dev);
+extern void intel_uncore_clear_errors(struct drm_device *dev);
+extern void intel_uncore_check_errors(struct drm_device *dev);
void
i915_enable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask);
err_printf(m, " POS: %08x\n", error->cursor[i].position);
err_printf(m, " BASE: %08x\n", error->cursor[i].base);
}
+
+ for (i = 0; i < error->num_transcoders; i++) {
+ err_printf(m, " CPU transcoder: %c\n",
+ transcoder_name(error->transcoder[i].cpu_transcoder));
+ err_printf(m, " CONF: %08x\n", error->transcoder[i].conf);
+ err_printf(m, " HTOTAL: %08x\n", error->transcoder[i].htotal);
+ err_printf(m, " HBLANK: %08x\n", error->transcoder[i].hblank);
+ err_printf(m, " HSYNC: %08x\n", error->transcoder[i].hsync);
+ err_printf(m, " VTOTAL: %08x\n", error->transcoder[i].vtotal);
+ err_printf(m, " VBLANK: %08x\n", error->transcoder[i].vblank);
+ err_printf(m, " VSYNC: %08x\n", error->transcoder[i].vsync);
+ }
}
-#endif
return ret;
}
- mgabo->gem.driver_private = NULL;
mgabo->bo.bdev = &mdev->ttm.bdev;
+ mgabo->bo.bdev->dev_mapping = dev->dev_mapping;
mgag200_ttm_placement(mgabo, TTM_PL_FLAG_VRAM | TTM_PL_FLAG_SYSTEM);
--- /dev/null
- rb_bufsz = drm_order(ring->ring_size / 4);
+ /*
+ * 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 = order_base_2(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);
+ }
+
--- /dev/null
- rb_bufsz = drm_order(ring->ring_size / 4);
+ /*
+ * 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 = order_base_2(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);
+ }
+
--- /dev/null
- rb_bufsz = drm_order(ring->ring_size / 4);
+ /*
+ * 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 = order_base_2(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;
+ }
--- /dev/null
- rb_bufsz = drm_order(ring->ring_size);
+ /*
+ * 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: Christian König <christian.koenig@amd.com>
+ */
+
+ #include <drm/drmP.h>
+ #include "radeon.h"
+ #include "radeon_asic.h"
+ #include "r600d.h"
+
+ /**
+ * uvd_v1_0_get_rptr - get read pointer
+ *
+ * @rdev: radeon_device pointer
+ * @ring: radeon_ring pointer
+ *
+ * Returns the current hardware read pointer
+ */
+ uint32_t uvd_v1_0_get_rptr(struct radeon_device *rdev,
+ struct radeon_ring *ring)
+ {
+ return RREG32(UVD_RBC_RB_RPTR);
+ }
+
+ /**
+ * uvd_v1_0_get_wptr - get write pointer
+ *
+ * @rdev: radeon_device pointer
+ * @ring: radeon_ring pointer
+ *
+ * Returns the current hardware write pointer
+ */
+ uint32_t uvd_v1_0_get_wptr(struct radeon_device *rdev,
+ struct radeon_ring *ring)
+ {
+ return RREG32(UVD_RBC_RB_WPTR);
+ }
+
+ /**
+ * uvd_v1_0_set_wptr - set write pointer
+ *
+ * @rdev: radeon_device pointer
+ * @ring: radeon_ring pointer
+ *
+ * Commits the write pointer to the hardware
+ */
+ void uvd_v1_0_set_wptr(struct radeon_device *rdev,
+ struct radeon_ring *ring)
+ {
+ WREG32(UVD_RBC_RB_WPTR, ring->wptr);
+ }
+
+ /**
+ * uvd_v1_0_init - start and test UVD block
+ *
+ * @rdev: radeon_device pointer
+ *
+ * Initialize the hardware, boot up the VCPU and do some testing
+ */
+ int uvd_v1_0_init(struct radeon_device *rdev)
+ {
+ struct radeon_ring *ring = &rdev->ring[R600_RING_TYPE_UVD_INDEX];
+ uint32_t tmp;
+ int r;
+
+ /* raise clocks while booting up the VCPU */
+ radeon_set_uvd_clocks(rdev, 53300, 40000);
+
+ r = uvd_v1_0_start(rdev);
+ if (r)
+ goto done;
+
+ ring->ready = true;
+ r = radeon_ring_test(rdev, R600_RING_TYPE_UVD_INDEX, ring);
+ if (r) {
+ ring->ready = false;
+ goto done;
+ }
+
+ r = radeon_ring_lock(rdev, ring, 10);
+ if (r) {
+ DRM_ERROR("radeon: ring failed to lock UVD ring (%d).\n", r);
+ goto done;
+ }
+
+ tmp = PACKET0(UVD_SEMA_WAIT_FAULT_TIMEOUT_CNTL, 0);
+ radeon_ring_write(ring, tmp);
+ radeon_ring_write(ring, 0xFFFFF);
+
+ tmp = PACKET0(UVD_SEMA_WAIT_INCOMPLETE_TIMEOUT_CNTL, 0);
+ radeon_ring_write(ring, tmp);
+ radeon_ring_write(ring, 0xFFFFF);
+
+ tmp = PACKET0(UVD_SEMA_SIGNAL_INCOMPLETE_TIMEOUT_CNTL, 0);
+ radeon_ring_write(ring, tmp);
+ radeon_ring_write(ring, 0xFFFFF);
+
+ /* Clear timeout status bits */
+ radeon_ring_write(ring, PACKET0(UVD_SEMA_TIMEOUT_STATUS, 0));
+ radeon_ring_write(ring, 0x8);
+
+ radeon_ring_write(ring, PACKET0(UVD_SEMA_CNTL, 0));
+ radeon_ring_write(ring, 3);
+
+ radeon_ring_unlock_commit(rdev, ring);
+
+ done:
+ /* lower clocks again */
+ radeon_set_uvd_clocks(rdev, 0, 0);
+
+ if (!r)
+ DRM_INFO("UVD initialized successfully.\n");
+
+ return r;
+ }
+
+ /**
+ * uvd_v1_0_fini - stop the hardware block
+ *
+ * @rdev: radeon_device pointer
+ *
+ * Stop the UVD block, mark ring as not ready any more
+ */
+ void uvd_v1_0_fini(struct radeon_device *rdev)
+ {
+ struct radeon_ring *ring = &rdev->ring[R600_RING_TYPE_UVD_INDEX];
+
+ uvd_v1_0_stop(rdev);
+ ring->ready = false;
+ }
+
+ /**
+ * uvd_v1_0_start - start UVD block
+ *
+ * @rdev: radeon_device pointer
+ *
+ * Setup and start the UVD block
+ */
+ int uvd_v1_0_start(struct radeon_device *rdev)
+ {
+ struct radeon_ring *ring = &rdev->ring[R600_RING_TYPE_UVD_INDEX];
+ uint32_t rb_bufsz;
+ int i, j, r;
+
+ /* disable byte swapping */
+ u32 lmi_swap_cntl = 0;
+ u32 mp_swap_cntl = 0;
+
+ /* disable clock gating */
+ WREG32(UVD_CGC_GATE, 0);
+
+ /* disable interupt */
+ WREG32_P(UVD_MASTINT_EN, 0, ~(1 << 1));
+
+ /* Stall UMC and register bus before resetting VCPU */
+ WREG32_P(UVD_LMI_CTRL2, 1 << 8, ~(1 << 8));
+ WREG32_P(UVD_RB_ARB_CTRL, 1 << 3, ~(1 << 3));
+ mdelay(1);
+
+ /* put LMI, VCPU, RBC etc... into reset */
+ WREG32(UVD_SOFT_RESET, LMI_SOFT_RESET | VCPU_SOFT_RESET |
+ LBSI_SOFT_RESET | RBC_SOFT_RESET | CSM_SOFT_RESET |
+ CXW_SOFT_RESET | TAP_SOFT_RESET | LMI_UMC_SOFT_RESET);
+ mdelay(5);
+
+ /* take UVD block out of reset */
+ WREG32_P(SRBM_SOFT_RESET, 0, ~SOFT_RESET_UVD);
+ mdelay(5);
+
+ /* initialize UVD memory controller */
+ WREG32(UVD_LMI_CTRL, 0x40 | (1 << 8) | (1 << 13) |
+ (1 << 21) | (1 << 9) | (1 << 20));
+
+ #ifdef __BIG_ENDIAN
+ /* swap (8 in 32) RB and IB */
+ lmi_swap_cntl = 0xa;
+ mp_swap_cntl = 0;
+ #endif
+ WREG32(UVD_LMI_SWAP_CNTL, lmi_swap_cntl);
+ WREG32(UVD_MP_SWAP_CNTL, mp_swap_cntl);
+
+ WREG32(UVD_MPC_SET_MUXA0, 0x40c2040);
+ WREG32(UVD_MPC_SET_MUXA1, 0x0);
+ WREG32(UVD_MPC_SET_MUXB0, 0x40c2040);
+ WREG32(UVD_MPC_SET_MUXB1, 0x0);
+ WREG32(UVD_MPC_SET_ALU, 0);
+ WREG32(UVD_MPC_SET_MUX, 0x88);
+
+ /* take all subblocks out of reset, except VCPU */
+ WREG32(UVD_SOFT_RESET, VCPU_SOFT_RESET);
+ mdelay(5);
+
+ /* enable VCPU clock */
+ WREG32(UVD_VCPU_CNTL, 1 << 9);
+
+ /* enable UMC */
+ WREG32_P(UVD_LMI_CTRL2, 0, ~(1 << 8));
+
+ /* boot up the VCPU */
+ WREG32(UVD_SOFT_RESET, 0);
+ mdelay(10);
+
+ WREG32_P(UVD_RB_ARB_CTRL, 0, ~(1 << 3));
+
+ for (i = 0; i < 10; ++i) {
+ uint32_t status;
+ for (j = 0; j < 100; ++j) {
+ status = RREG32(UVD_STATUS);
+ if (status & 2)
+ break;
+ mdelay(10);
+ }
+ r = 0;
+ if (status & 2)
+ break;
+
+ DRM_ERROR("UVD not responding, trying to reset the VCPU!!!\n");
+ WREG32_P(UVD_SOFT_RESET, VCPU_SOFT_RESET, ~VCPU_SOFT_RESET);
+ mdelay(10);
+ WREG32_P(UVD_SOFT_RESET, 0, ~VCPU_SOFT_RESET);
+ mdelay(10);
+ r = -1;
+ }
+
+ if (r) {
+ DRM_ERROR("UVD not responding, giving up!!!\n");
+ return r;
+ }
+
+ /* enable interupt */
+ WREG32_P(UVD_MASTINT_EN, 3<<1, ~(3 << 1));
+
+ /* force RBC into idle state */
+ WREG32(UVD_RBC_RB_CNTL, 0x11010101);
+
+ /* Set the write pointer delay */
+ WREG32(UVD_RBC_RB_WPTR_CNTL, 0);
+
+ /* programm the 4GB memory segment for rptr and ring buffer */
+ WREG32(UVD_LMI_EXT40_ADDR, upper_32_bits(ring->gpu_addr) |
+ (0x7 << 16) | (0x1 << 31));
+
+ /* Initialize the ring buffer's read and write pointers */
+ WREG32(UVD_RBC_RB_RPTR, 0x0);
+
+ ring->wptr = ring->rptr = RREG32(UVD_RBC_RB_RPTR);
+ WREG32(UVD_RBC_RB_WPTR, ring->wptr);
+
+ /* set the ring address */
+ WREG32(UVD_RBC_RB_BASE, ring->gpu_addr);
+
+ /* Set ring buffer size */
++ rb_bufsz = order_base_2(ring->ring_size);
+ rb_bufsz = (0x1 << 8) | rb_bufsz;
+ WREG32_P(UVD_RBC_RB_CNTL, rb_bufsz, ~0x11f1f);
+
+ return 0;
+ }
+
+ /**
+ * uvd_v1_0_stop - stop UVD block
+ *
+ * @rdev: radeon_device pointer
+ *
+ * stop the UVD block
+ */
+ void uvd_v1_0_stop(struct radeon_device *rdev)
+ {
+ /* force RBC into idle state */
+ WREG32(UVD_RBC_RB_CNTL, 0x11010101);
+
+ /* Stall UMC and register bus before resetting VCPU */
+ WREG32_P(UVD_LMI_CTRL2, 1 << 8, ~(1 << 8));
+ WREG32_P(UVD_RB_ARB_CTRL, 1 << 3, ~(1 << 3));
+ mdelay(1);
+
+ /* put VCPU into reset */
+ WREG32(UVD_SOFT_RESET, VCPU_SOFT_RESET);
+ mdelay(5);
+
+ /* disable VCPU clock */
+ WREG32(UVD_VCPU_CNTL, 0x0);
+
+ /* Unstall UMC and register bus */
+ WREG32_P(UVD_LMI_CTRL2, 0, ~(1 << 8));
+ WREG32_P(UVD_RB_ARB_CTRL, 0, ~(1 << 3));
+ }
+
+ /**
+ * uvd_v1_0_ring_test - register write test
+ *
+ * @rdev: radeon_device pointer
+ * @ring: radeon_ring pointer
+ *
+ * Test if we can successfully write to the context register
+ */
+ int uvd_v1_0_ring_test(struct radeon_device *rdev, struct radeon_ring *ring)
+ {
+ uint32_t tmp = 0;
+ unsigned i;
+ int r;
+
+ WREG32(UVD_CONTEXT_ID, 0xCAFEDEAD);
+ r = radeon_ring_lock(rdev, ring, 3);
+ if (r) {
+ DRM_ERROR("radeon: cp failed to lock ring %d (%d).\n",
+ ring->idx, r);
+ return r;
+ }
+ radeon_ring_write(ring, PACKET0(UVD_CONTEXT_ID, 0));
+ radeon_ring_write(ring, 0xDEADBEEF);
+ radeon_ring_unlock_commit(rdev, ring);
+ for (i = 0; i < rdev->usec_timeout; i++) {
+ tmp = RREG32(UVD_CONTEXT_ID);
+ 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;
+ }
+
+ /**
+ * uvd_v1_0_semaphore_emit - emit semaphore command
+ *
+ * @rdev: radeon_device pointer
+ * @ring: radeon_ring pointer
+ * @semaphore: semaphore to emit commands for
+ * @emit_wait: true if we should emit a wait command
+ *
+ * Emit a semaphore command (either wait or signal) to the UVD ring.
+ */
+ void uvd_v1_0_semaphore_emit(struct radeon_device *rdev,
+ struct radeon_ring *ring,
+ struct radeon_semaphore *semaphore,
+ bool emit_wait)
+ {
+ uint64_t addr = semaphore->gpu_addr;
+
+ radeon_ring_write(ring, PACKET0(UVD_SEMA_ADDR_LOW, 0));
+ radeon_ring_write(ring, (addr >> 3) & 0x000FFFFF);
+
+ radeon_ring_write(ring, PACKET0(UVD_SEMA_ADDR_HIGH, 0));
+ radeon_ring_write(ring, (addr >> 23) & 0x000FFFFF);
+
+ radeon_ring_write(ring, PACKET0(UVD_SEMA_CMD, 0));
+ radeon_ring_write(ring, emit_wait ? 1 : 0);
+ }
+
+ /**
+ * uvd_v1_0_ib_execute - execute indirect buffer
+ *
+ * @rdev: radeon_device pointer
+ * @ib: indirect buffer to execute
+ *
+ * Write ring commands to execute the indirect buffer
+ */
+ void uvd_v1_0_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib)
+ {
+ struct radeon_ring *ring = &rdev->ring[ib->ring];
+
+ radeon_ring_write(ring, PACKET0(UVD_RBC_IB_BASE, 0));
+ radeon_ring_write(ring, ib->gpu_addr);
+ radeon_ring_write(ring, PACKET0(UVD_RBC_IB_SIZE, 0));
+ radeon_ring_write(ring, ib->length_dw);
+ }
+
+ /**
+ * uvd_v1_0_ib_test - test ib execution
+ *
+ * @rdev: radeon_device pointer
+ * @ring: radeon_ring pointer
+ *
+ * Test if we can successfully execute an IB
+ */
+ int uvd_v1_0_ib_test(struct radeon_device *rdev, struct radeon_ring *ring)
+ {
+ struct radeon_fence *fence = NULL;
+ int r;
+
+ r = radeon_set_uvd_clocks(rdev, 53300, 40000);
+ if (r) {
+ DRM_ERROR("radeon: failed to raise UVD clocks (%d).\n", r);
+ return r;
+ }
+
+ r = radeon_uvd_get_create_msg(rdev, ring->idx, 1, NULL);
+ if (r) {
+ DRM_ERROR("radeon: failed to get create msg (%d).\n", r);
+ goto error;
+ }
+
+ r = radeon_uvd_get_destroy_msg(rdev, ring->idx, 1, &fence);
+ if (r) {
+ DRM_ERROR("radeon: failed to get destroy ib (%d).\n", r);
+ goto error;
+ }
+
+ r = radeon_fence_wait(fence, false);
+ if (r) {
+ DRM_ERROR("radeon: fence wait failed (%d).\n", r);
+ goto error;
+ }
+ DRM_INFO("ib test on ring %d succeeded\n", ring->idx);
+ error:
+ radeon_fence_unref(&fence);
+ radeon_set_uvd_clocks(rdev, 0, 0);
+ return r;
+ }
projects / linux-2.6-microblaze.git / commitdiff