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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-18 17:39:57 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-18 17:39:57 +0000
commitdc50eab76b709d68175a358d6e23a5a3890764d3 (patch)
treec754d0390db060af0213ff994f0ac310e4cfd6e9 /drivers/gpu/drm/drm_syncobj.c
parentAdding debian version 6.6.15-2. (diff)
downloadlinux-dc50eab76b709d68175a358d6e23a5a3890764d3.tar.xz
linux-dc50eab76b709d68175a358d6e23a5a3890764d3.zip
Merging upstream version 6.7.7.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/gpu/drm/drm_syncobj.c')
-rw-r--r--drivers/gpu/drm/drm_syncobj.c19
1 files changed, 16 insertions, 3 deletions
diff --git a/drivers/gpu/drm/drm_syncobj.c b/drivers/gpu/drm/drm_syncobj.c
index 01da6789d0..5860428da8 100644
--- a/drivers/gpu/drm/drm_syncobj.c
+++ b/drivers/gpu/drm/drm_syncobj.c
@@ -1034,7 +1034,8 @@ static signed long drm_syncobj_array_wait_timeout(struct drm_syncobj **syncobjs,
uint64_t *points;
uint32_t signaled_count, i;
- if (flags & DRM_SYNCOBJ_WAIT_FLAGS_WAIT_FOR_SUBMIT)
+ if (flags & (DRM_SYNCOBJ_WAIT_FLAGS_WAIT_FOR_SUBMIT |
+ DRM_SYNCOBJ_WAIT_FLAGS_WAIT_AVAILABLE))
lockdep_assert_none_held_once();
points = kmalloc_array(count, sizeof(*points), GFP_KERNEL);
@@ -1103,7 +1104,8 @@ static signed long drm_syncobj_array_wait_timeout(struct drm_syncobj **syncobjs,
* fallthough and try a 0 timeout wait!
*/
- if (flags & DRM_SYNCOBJ_WAIT_FLAGS_WAIT_FOR_SUBMIT) {
+ if (flags & (DRM_SYNCOBJ_WAIT_FLAGS_WAIT_FOR_SUBMIT |
+ DRM_SYNCOBJ_WAIT_FLAGS_WAIT_AVAILABLE)) {
for (i = 0; i < count; ++i)
drm_syncobj_fence_add_wait(syncobjs[i], &entries[i]);
}
@@ -1378,10 +1380,21 @@ syncobj_eventfd_entry_func(struct drm_syncobj *syncobj,
/* This happens inside the syncobj lock */
fence = dma_fence_get(rcu_dereference_protected(syncobj->fence, 1));
+ if (!fence)
+ return;
+
ret = dma_fence_chain_find_seqno(&fence, entry->point);
- if (ret != 0 || !fence) {
+ if (ret != 0) {
+ /* The given seqno has not been submitted yet. */
dma_fence_put(fence);
return;
+ } else if (!fence) {
+ /* If dma_fence_chain_find_seqno returns 0 but sets the fence
+ * to NULL, it implies that the given seqno is signaled and a
+ * later seqno has already been submitted. Assign a stub fence
+ * so that the eventfd still gets signaled below.
+ */
+ fence = dma_fence_get_stub();
}
list_del_init(&entry->node);