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drm/radeon: fix possible lack of synchronization btw ttm and other ring 

We need to sync with the GFX ring as ttm might have schedule bo move
on it and new command scheduled for other ring need to wait for bo
data to be in place.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Reviewed by: Christian König <christian.koenig@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Jerome Glisse 2012-05-09 15:34:44 +02:00 committed by Dave Airlie
parent 4f256e8aa3
commit 133f4cb336
2 changed files with 6 additions and 7 deletions
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12
drivers/gpu/drm/radeon/radeon_cs.c
View File

@ -122,15 +122,15 @@ static int radeon_cs_sync_rings(struct radeon_cs_parser *p)
int i, r;
for (i = 0; i < p->nrelocs; i++) {
struct radeon_fence *fence;
if (!p->relocs[i].robj || !p->relocs[i].robj->tbo.sync_obj)
continue;
if (!(p->relocs[i].flags & RADEON_RELOC_DONT_SYNC)) {
struct radeon_fence *fence = p->relocs[i].robj->tbo.sync_obj;
if (fence->ring != p->ring && !radeon_fence_signaled(fence)) {
sync_to_ring[fence->ring] = true;
need_sync = true;
}
fence = p->relocs[i].robj->tbo.sync_obj;
if (fence->ring != p->ring && !radeon_fence_signaled(fence)) {
sync_to_ring[fence->ring] = true;
need_sync = true;
}
}

1
include/drm/radeon_drm.h
View File

@ -926,7 +926,6 @@ struct drm_radeon_cs_chunk {
};
/* drm_radeon_cs_reloc.flags */
#define RADEON_RELOC_DONT_SYNC 0x01
struct drm_radeon_cs_reloc {
uint32_t handle;