Mesa (master): st/mesa: if a fence isn't returned, assume it's signalled
Marek Olšák
mareko at kemper.freedesktop.org
Sun Jul 5 13:09:52 UTC 2015
Module: Mesa
Branch: master
Commit: 872ede6fd136c7f9701cc60268ab195a48e75e67
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=872ede6fd136c7f9701cc60268ab195a48e75e67
Author: Marek Olšák <marek.olsak at amd.com>
Date: Sat Jun 27 13:57:06 2015 +0200
st/mesa: if a fence isn't returned, assume it's signalled
The reason might be that no commands have been submitted before the flush
and the GPU is idle.
---
src/mesa/state_tracker/st_cb_syncobj.c | 14 +++++++++++++-
1 file changed, 13 insertions(+), 1 deletion(-)
diff --git a/src/mesa/state_tracker/st_cb_syncobj.c b/src/mesa/state_tracker/st_cb_syncobj.c
index d23c93d..ec2687f 100644
--- a/src/mesa/state_tracker/st_cb_syncobj.c
+++ b/src/mesa/state_tracker/st_cb_syncobj.c
@@ -81,7 +81,13 @@ static void st_check_sync(struct gl_context *ctx, struct gl_sync_object *obj)
struct pipe_screen *screen = st_context(ctx)->pipe->screen;
struct st_sync_object *so = (struct st_sync_object*)obj;
- if (so->fence && screen->fence_finish(screen, so->fence, 0)) {
+ /* If the fence doesn't exist, assume it's signalled. */
+ if (!so->fence) {
+ so->b.StatusFlag = GL_TRUE;
+ return;
+ }
+
+ if (screen->fence_finish(screen, so->fence, 0)) {
screen->fence_reference(screen, &so->fence, NULL);
so->b.StatusFlag = GL_TRUE;
}
@@ -94,6 +100,12 @@ static void st_client_wait_sync(struct gl_context *ctx,
struct pipe_screen *screen = st_context(ctx)->pipe->screen;
struct st_sync_object *so = (struct st_sync_object*)obj;
+ /* If the fence doesn't exist, assume it's signalled. */
+ if (!so->fence) {
+ so->b.StatusFlag = GL_TRUE;
+ return;
+ }
+
/* We don't care about GL_SYNC_FLUSH_COMMANDS_BIT, because flush is
* already called when creating a fence. */
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