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authorAlex Deucher <alexander.deucher@amd.com>2013-07-18 09:24:37 -0400
committerAlex Deucher <alexander.deucher@amd.com>2013-07-22 15:57:11 -0400
commit745a39a9e6b2901cd341af01fc9bac78a9649e23 (patch)
treea7235cfc957605a1eb9dd3a909d3bc9df2bf8e57
parent058ca4a22ebf22ea1cbedd6cc0340ed1e2e94ee1 (diff)
downloadop-kernel-dev-745a39a9e6b2901cd341af01fc9bac78a9649e23.zip
op-kernel-dev-745a39a9e6b2901cd341af01fc9bac78a9649e23.tar.gz
drm/radeon: wait for 3D idle before using CP DMA
Make sure the 3D engine is idle before using CP DMA for bo copies. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: Marek Olšák <maraeo@gmail.com>
-rw-r--r--drivers/gpu/drm/radeon/r600.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index 393880a..10f712e 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -3166,7 +3166,7 @@ int r600_copy_cpdma(struct radeon_device *rdev,
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 * 6 + 21);
+ r = radeon_ring_lock(rdev, ring, num_loops * 6 + 24);
if (r) {
DRM_ERROR("radeon: moving bo (%d).\n", r);
radeon_semaphore_free(rdev, &sem, NULL);
@@ -3181,6 +3181,9 @@ int r600_copy_cpdma(struct radeon_device *rdev,
radeon_semaphore_free(rdev, &sem, NULL);
}
+ radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
+ radeon_ring_write(ring, (WAIT_UNTIL - PACKET3_SET_CONFIG_REG_OFFSET) >> 2);
+ radeon_ring_write(ring, WAIT_3D_IDLE_bit);
for (i = 0; i < num_loops; i++) {
cur_size_in_bytes = size_in_bytes;
if (cur_size_in_bytes > 0x1fffff)
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