The function radeon_bo_list_validate can cause a bo to move, resulting in a different sync_obj and a dependency to wait for this move to finish.
Signed-off-by: Christian König deathsimple@vodafone.de --- drivers/gpu/drm/radeon/radeon.h | 1 - drivers/gpu/drm/radeon/radeon_cs.c | 21 ++++++++++++++------- 2 files changed, 14 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index 73e05cb..43f29ad 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -792,7 +792,6 @@ struct radeon_cs_parser { struct radeon_cs_reloc *relocs; struct radeon_cs_reloc **relocs_ptr; struct list_head validated; - bool sync_to_ring[RADEON_NUM_RINGS]; /* indices of various chunks */ int chunk_ib_idx; int chunk_relocs_idx; diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c index 435a3d9..7fd0987 100644 --- a/drivers/gpu/drm/radeon/radeon_cs.c +++ b/drivers/gpu/drm/radeon/radeon_cs.c @@ -85,12 +85,6 @@ int radeon_cs_parser_relocs(struct radeon_cs_parser *p) radeon_bo_list_add_object(&p->relocs[i].lobj, &p->validated);
- if (p->relocs[i].robj->tbo.sync_obj && !(r->flags & RADEON_RELOC_DONT_SYNC)) { - struct radeon_fence *fence = p->relocs[i].robj->tbo.sync_obj; - if (!radeon_fence_signaled(fence)) { - p->sync_to_ring[fence->ring] = true; - } - } } else p->relocs[i].handle = 0; } @@ -118,11 +112,24 @@ static int radeon_cs_get_ring(struct radeon_cs_parser *p, u32 ring, s32 priority
static int radeon_cs_sync_rings(struct radeon_cs_parser *p) { + bool sync_to_ring[RADEON_NUM_RINGS] = { }; int i, r;
+ for (i = 0; i < p->nrelocs; i++) { + 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 (!radeon_fence_signaled(fence)) { + sync_to_ring[fence->ring] = true; + } + } + } + for (i = 0; i < RADEON_NUM_RINGS; ++i) { /* no need to sync to our own or unused rings */ - if (i == p->ring || !p->sync_to_ring[i] || !p->rdev->ring[i].ready) + if (i == p->ring || !sync_to_ring[i] || !p->rdev->ring[i].ready) continue;
if (!p->ib->fence->semaphore) {