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| author | Michel Dänzer <michel.daenzer@amd.com> | 2014-06-17 14:12:03 +0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2014-06-19 00:30:49 +0400 |
| commit | ca721b79377360a891a7d47ed091a79442d5cc7e (patch) | |
| tree | 2e6914d4fe70582320058d14f64de5372d0f5b57 /drivers/gpu | |
| parent | f2263fc79655e155d84baf4d475cf02caaf2f8fc (diff) | |
| download | linux-ca721b79377360a891a7d47ed091a79442d5cc7e.tar.xz | |
Revert "drm/radeon: remove drm_vblank_get|put from pflip handling"
This reverts commit 75f36d861957cb05b7889af24c8cd4a789398304.
drm_vblank_get() is necessary to ensure the DRM vblank counter value is
up to date in drm_send_vblank_event().
Seems to fix weston hangs waiting for page flips to complete.
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_display.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c index 4db26420f38a..ef3b4d12294c 100644 --- a/drivers/gpu/drm/radeon/radeon_display.c +++ b/drivers/gpu/drm/radeon/radeon_display.c @@ -358,6 +358,7 @@ void radeon_crtc_handle_flip(struct radeon_device *rdev, int crtc_id) spin_unlock_irqrestore(&rdev->ddev->event_lock, flags); + drm_vblank_put(rdev->ddev, radeon_crtc->crtc_id); radeon_fence_unref(&work->fence); radeon_irq_kms_pflip_irq_get(rdev, work->crtc_id); queue_work(radeon_crtc->flip_queue, &work->unpin_work); @@ -460,6 +461,12 @@ static void radeon_flip_work_func(struct work_struct *__work) base &= ~7; } + r = drm_vblank_get(crtc->dev, radeon_crtc->crtc_id); + if (r) { + DRM_ERROR("failed to get vblank before flip\n"); + goto pflip_cleanup; + } + /* We borrow the event spin lock for protecting flip_work */ spin_lock_irqsave(&crtc->dev->event_lock, flags); @@ -474,6 +481,16 @@ static void radeon_flip_work_func(struct work_struct *__work) return; +pflip_cleanup: + if (unlikely(radeon_bo_reserve(work->new_rbo, false) != 0)) { + DRM_ERROR("failed to reserve new rbo in error path\n"); + goto cleanup; + } + if (unlikely(radeon_bo_unpin(work->new_rbo) != 0)) { + DRM_ERROR("failed to unpin new rbo in error path\n"); + } + radeon_bo_unreserve(work->new_rbo); + cleanup: drm_gem_object_unreference_unlocked(&work->old_rbo->gem_base); radeon_fence_unref(&work->fence); |