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author | Christian König <christian.koenig@amd.com> | 2013-08-13 11:56:54 +0200 |
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committer | Alex Deucher <alexander.deucher@amd.com> | 2013-08-30 16:30:42 -0400 |
commit | 2483b4ea982efe8a544697d3f9642932e9af4dc1 (patch) | |
tree | f739e1b55b5e200817c174d4eae6f22935d152bf /drivers/gpu/drm/radeon/rv770.c | |
parent | e409b128625732926c112cc9b709fb7bb1aa387f (diff) | |
download | op-kernel-dev-2483b4ea982efe8a544697d3f9642932e9af4dc1.zip op-kernel-dev-2483b4ea982efe8a544697d3f9642932e9af4dc1.tar.gz |
drm/radeon: separate DMA code
Similar to separating the UVD code, just put the DMA
functions into separate files.
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/rv770.c')
-rw-r--r-- | drivers/gpu/drm/radeon/rv770.c | 74 |
1 files changed, 0 insertions, 74 deletions
diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c index aaab7b1..b811296 100644 --- a/drivers/gpu/drm/radeon/rv770.c +++ b/drivers/gpu/drm/radeon/rv770.c @@ -1650,80 +1650,6 @@ 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; |