diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/rv770.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/rv770.c | 105 |
1 files changed, 103 insertions, 2 deletions
diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c index 79814a08c8e5..1b2444f4d8f4 100644 --- a/drivers/gpu/drm/radeon/rv770.c +++ b/drivers/gpu/drm/radeon/rv770.c @@ -316,6 +316,7 @@ void r700_cp_stop(struct radeon_device *rdev) radeon_ttm_set_active_vram_size(rdev, rdev->mc.visible_vram_size); WREG32(CP_ME_CNTL, (CP_ME_HALT | CP_PFP_HALT)); WREG32(SCRATCH_UMSK, 0); + rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = false; } static int rv770_cp_load_microcode(struct radeon_device *rdev) @@ -583,6 +584,8 @@ static void rv770_gpu_init(struct radeon_device *rdev) WREG32(GB_TILING_CONFIG, gb_tiling_config); WREG32(DCP_TILING_CONFIG, (gb_tiling_config & 0xffff)); WREG32(HDP_TILING_CONFIG, (gb_tiling_config & 0xffff)); + WREG32(DMA_TILING_CONFIG, (gb_tiling_config & 0xffff)); + WREG32(DMA_TILING_CONFIG2, (gb_tiling_config & 0xffff)); WREG32(CGTS_SYS_TCC_DISABLE, 0); WREG32(CGTS_TCC_DISABLE, 0); @@ -884,9 +887,83 @@ static int rv770_mc_init(struct radeon_device *rdev) 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 = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX]; + struct radeon_ring *ring; int r; /* enable pcie gen2 link */ @@ -932,6 +1009,12 @@ static int rv770_startup(struct radeon_device *rdev) return r; } + r = radeon_fence_driver_start_ring(rdev, R600_RING_TYPE_DMA_INDEX); + if (r) { + dev_err(rdev->dev, "failed initializing DMA fences (%d).\n", r); + return r; + } + /* Enable IRQ */ r = r600_irq_init(rdev); if (r) { @@ -941,11 +1024,20 @@ static int rv770_startup(struct radeon_device *rdev) } r600_irq_set(rdev); + ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX]; r = radeon_ring_init(rdev, ring, ring->ring_size, RADEON_WB_CP_RPTR_OFFSET, R600_CP_RB_RPTR, R600_CP_RB_WPTR, 0, 0xfffff, RADEON_CP_PACKET2); if (r) return r; + + ring = &rdev->ring[R600_RING_TYPE_DMA_INDEX]; + r = radeon_ring_init(rdev, ring, ring->ring_size, R600_WB_DMA_RPTR_OFFSET, + DMA_RB_RPTR, DMA_RB_WPTR, + 2, 0x3fffc, DMA_PACKET(DMA_PACKET_NOP, 0, 0, 0)); + if (r) + return r; + r = rv770_cp_load_microcode(rdev); if (r) return r; @@ -953,6 +1045,10 @@ static int rv770_startup(struct radeon_device *rdev) if (r) return r; + r = r600_dma_resume(rdev); + if (r) + return r; + r = radeon_ib_pool_init(rdev); if (r) { dev_err(rdev->dev, "IB initialization failed (%d).\n", r); @@ -995,7 +1091,7 @@ int rv770_suspend(struct radeon_device *rdev) { r600_audio_fini(rdev); r700_cp_stop(rdev); - rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = false; + r600_dma_stop(rdev); r600_irq_suspend(rdev); radeon_wb_disable(rdev); rv770_pcie_gart_disable(rdev); @@ -1066,6 +1162,9 @@ int rv770_init(struct radeon_device *rdev) rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ring_obj = NULL; r600_ring_init(rdev, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX], 1024 * 1024); + rdev->ring[R600_RING_TYPE_DMA_INDEX].ring_obj = NULL; + r600_ring_init(rdev, &rdev->ring[R600_RING_TYPE_DMA_INDEX], 64 * 1024); + rdev->ih.ring_obj = NULL; r600_ih_ring_init(rdev, 64 * 1024); @@ -1078,6 +1177,7 @@ int rv770_init(struct radeon_device *rdev) if (r) { dev_err(rdev->dev, "disabling GPU acceleration\n"); r700_cp_fini(rdev); + r600_dma_fini(rdev); r600_irq_fini(rdev); radeon_wb_fini(rdev); radeon_ib_pool_fini(rdev); @@ -1093,6 +1193,7 @@ void rv770_fini(struct radeon_device *rdev) { r600_blit_fini(rdev); r700_cp_fini(rdev); + r600_dma_fini(rdev); r600_irq_fini(rdev); radeon_wb_fini(rdev); radeon_ib_pool_fini(rdev); |