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| author | Dave Airlie <airlied@redhat.com> | 2015-04-02 23:28:55 (GMT) |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2015-04-02 23:28:55 (GMT) |
| commit | 51b52fac9b4ece9ec0c27a39b0ae1b3b4a829df9 (patch) | |
| tree | 2300d4868fe521afa3478c8ced084a2611842605 | |
| parent | 165b11bfe44a4c758fece6e5b1bd9dcb628d6b13 (diff) | |
| parent | 22e2e86560c5fca6f9b9d078f221fcdab9947a5e (diff) | |
| download | linux-51b52fac9b4ece9ec0c27a39b0ae1b3b4a829df9.tar.xz | |
Merge branch 'drm-fixes-4.0' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
Just two small fixes for radeon, both destined for stable.
* 'drm-fixes-4.0' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon: fix wait in radeon_mn_invalidate_range_start
drm/radeon: add extra check in radeon_ttm_tt_unpin_userptr
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_mn.c | 11 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_ttm.c | 4 |
2 files changed, 8 insertions, 7 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_mn.c b/drivers/gpu/drm/radeon/radeon_mn.c index a69bd44..572b4db 100644 --- a/drivers/gpu/drm/radeon/radeon_mn.c +++ b/drivers/gpu/drm/radeon/radeon_mn.c @@ -122,7 +122,6 @@ static void radeon_mn_invalidate_range_start(struct mmu_notifier *mn, it = interval_tree_iter_first(&rmn->objects, start, end); while (it) { struct radeon_bo *bo; - struct fence *fence; int r; bo = container_of(it, struct radeon_bo, mn_it); @@ -134,12 +133,10 @@ static void radeon_mn_invalidate_range_start(struct mmu_notifier *mn, continue; } - fence = reservation_object_get_excl(bo->tbo.resv); - if (fence) { - r = radeon_fence_wait((struct radeon_fence *)fence, false); - if (r) - DRM_ERROR("(%d) failed to wait for user bo\n", r); - } + r = reservation_object_wait_timeout_rcu(bo->tbo.resv, true, + false, MAX_SCHEDULE_TIMEOUT); + if (r) + DRM_ERROR("(%d) failed to wait for user bo\n", r); radeon_ttm_placement_from_domain(bo, RADEON_GEM_DOMAIN_CPU); r = ttm_bo_validate(&bo->tbo, &bo->placement, false, false); diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c index d02aa1d..b292aca 100644 --- a/drivers/gpu/drm/radeon/radeon_ttm.c +++ b/drivers/gpu/drm/radeon/radeon_ttm.c @@ -598,6 +598,10 @@ static void radeon_ttm_tt_unpin_userptr(struct ttm_tt *ttm) enum dma_data_direction direction = write ? DMA_BIDIRECTIONAL : DMA_TO_DEVICE; + /* double check that we don't free the table twice */ + if (!ttm->sg->sgl) + return; + /* free the sg table and pages again */ dma_unmap_sg(rdev->dev, ttm->sg->sgl, ttm->sg->nents, direction); |