From 2483b4ea982efe8a544697d3f9642932e9af4dc1 Mon Sep 17 00:00:00 2001 From: Christian König Date: Tue, 13 Aug 2013 11:56:54 +0200 Subject: drm/radeon: separate DMA code MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Similar to separating the UVD code, just put the DMA functions into separate files. Signed-off-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/evergreen.c | 161 +------------------------------------ 1 file changed, 1 insertion(+), 160 deletions(-) (limited to 'drivers/gpu/drm/radeon/evergreen.c') diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index 52ed22333f0d..bbaa4f2056ce 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -3613,7 +3613,7 @@ bool evergreen_is_display_hung(struct radeon_device *rdev) 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; @@ -3839,28 +3839,6 @@ bool evergreen_gfx_is_lockup(struct radeon_device *rdev, struct radeon_ring *rin 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 */ @@ -5024,143 +5002,6 @@ restart_ih: 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; -- cgit v1.2.3