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>
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 52ed223..bbaa4f2 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -3613,7 +3613,7 @@
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 @@
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 @@
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;