Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-15 00:21:59 +00:00
Code Issues Packages Projects Releases Wiki Activity

drm/radeon: Complete page flip even if waiting on the BO fence fails

Browse Source 
Otherwise the DRM core and userspace will be confused about which BO the
CRTC is scanning out.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Michel Dänzer 2014-07-14 15:58:03 +09:00 committed by Alex Deucher
parent c60381bd82
commit 306f98d9a1
1 changed files with 9 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
drivers/gpu/drm/radeon/radeon_display.c
View File

@ -390,20 +390,22 @@ static void radeon_flip_work_func(struct work_struct *__work)
int r;
down_read(&rdev->exclusive_lock);
while (work->fence) {
if (work->fence) {
r = radeon_fence_wait(work->fence, false);
if (r == -EDEADLK) {
up_read(&rdev->exclusive_lock);
r = radeon_gpu_reset(rdev);
down_read(&rdev->exclusive_lock);
}
if (r)
DRM_ERROR("failed to wait on page flip fence (%d)!\n", r);
if (r) {
DRM_ERROR("failed to wait on page flip fence (%d)!\n",
r);
goto cleanup;
} else
radeon_fence_unref(&work->fence);
/* We continue with the page flip even if we failed to wait on
* the fence, otherwise the DRM core and userspace will be
* confused about which BO the CRTC is scanning out
*/
radeon_fence_unref(&work->fence);
}
/* do the flip (mmio) */
@ -418,14 +420,6 @@ static void radeon_flip_work_func(struct work_struct *__work)
radeon_crtc->flip_status = RADEON_FLIP_SUBMITTED;
spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
up_read(&rdev->exclusive_lock);
return;
cleanup:
drm_gem_object_unreference_unlocked(&work->old_rbo->gem_base);
radeon_fence_unref(&work->fence);
kfree(work);
up_read(&rdev->exclusive_lock);
}
static int radeon_crtc_page_flip(struct drm_crtc *crtc,