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@xxxxxxxxxxx>
Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
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 884e0d4..4c1b981 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -836,7 +836,6 @@ 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) {
--
1.7.5.4
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