Depends on previous signalled value patch.
If the reqiest is unsynchronized, we must not do anything, so do that
check first.
Fixes a bug if DONTBLOCK | UNSYNCHRONIZED.
---
.../auxiliary/pipebuffer/pb_buffer_fenced.c | 34 +++++++++----------
1 files changed, 16 insertions(+), 18 deletions(-)
diff --git a/src/gallium/auxiliary/pipebuffer/pb_buffer_fenced.c
b/src/gallium/auxiliary/pipebuffer/pb_buffer_fenced.c
index d97f749..46e490b 100644
--- a/src/gallium/auxiliary/pipebuffer/pb_buffer_fenced.c
+++ b/src/gallium/auxiliary/pipebuffer/pb_buffer_fenced.c
@@ -688,27 +688,25 @@ fenced_buffer_map(struct pb_buffer *buf,
/*
* Serialize writes.
*/
- while((fenced_buf->flags & PIPE_BUFFER_USAGE_GPU_WRITE) ||
- ((fenced_buf->flags & PIPE_BUFFER_USAGE_GPU_READ) &&
- (flags & PIPE_BUFFER_USAGE_CPU_WRITE))) {
+ if (flags & PIPE_BUFFER_USAGE_UNSYNCHRONIZED) {
+ while((fenced_buf->flags & PIPE_BUFFER_USAGE_GPU_WRITE) ||
+ ((fenced_buf->flags & PIPE_BUFFER_USAGE_GPU_READ) &&
+ (flags & PIPE_BUFFER_USAGE_CPU_WRITE))) {
- /*
- * Don't wait for the GPU to finish accessing it, if blocking is
forbidden.
- */
- if((flags & PIPE_BUFFER_USAGE_DONTBLOCK) &&
- ops->fence_signalled(ops, fenced_buf->fence, 0) != 0) {
- goto done;
- }
+ /*
+ * Don't wait for the GPU to finish accessing it, if blocking is
forbidden.
+ */
+ if((flags & PIPE_BUFFER_USAGE_DONTBLOCK) &&
+ ops->fence_signalled(ops, fenced_buf->fence, 0) != 0) {
+ goto done;
+ }
- if (flags & PIPE_BUFFER_USAGE_UNSYNCHRONIZED) {
- break;
+ /*
+ * Wait for the GPU to finish accessing. This will release and
re-acquire
+ * the mutex, so all copies of mutable state must be discarded.
+ */
+ fenced_buffer_finish_locked(fenced_mgr, fenced_buf);
}
-
- /*
- * Wait for the GPU to finish accessing. This will release and re-acquire
- * the mutex, so all copies of mutable state must be discarded.
- */
- fenced_buffer_finish_locked(fenced_mgr, fenced_buf);
}
if(fenced_buf->buffer) {
--
1.6.6.1.476.g01ddb
------------------------------------------------------------------------------
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