diff options
| author | Michel Dänzer <michel.daenzer@amd.com> | 2014-07-14 15:58:03 +0900 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2014-07-17 09:01:32 -0400 |
| commit | 306f98d9a1079cc78567b1a6a5e94c272c163e47 (patch) | |
| tree | 22ca6ee39c545b1f9060888d5c111442a4a56970 | |
| parent | c60381bd82a54233bb46f93be00a4154bd0cf95d (diff) | |
| download | blackfin-linux-306f98d9a1079cc78567b1a6a5e94c272c163e47.tar.gz | |
drm/radeon: Complete page flip even if waiting on the BO fence fails
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>
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_display.c | 24 |
1 files changed, 9 insertions, 15 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c index 8de5794736455e..97ea46597bead2 100644 --- a/drivers/gpu/drm/radeon/radeon_display.c +++ b/drivers/gpu/drm/radeon/radeon_display.c @@ -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, |