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| author |   Thierry Reding <treding@nvidia.com> | 2019-09-16 16:19:25 +0200 |
|---|---|---|
| committer |   Ben Skeggs <bskeggs@redhat.com> | 2019-09-17 14:50:16 +1000 |
| commit | 641f53c07d2760f1a53288c3cab0300030f049cb (patch) | |
| tree | bf3a033bc07e7d512dab9bf5e7fb2e5492ae0edf /drivers/gpu/drm/nouveau/nvkm/subdev/bar/gm20b.c | |
| parent | drm/nouveau/prime: Extend DMA reservation object lock (diff) | |
| download | linux-dev-641f53c07d2760f1a53288c3cab0300030f049cb.tar.xz linux-dev-641f53c07d2760f1a53288c3cab0300030f049cb.zip | |
drm/nouveau: Fix ordering between TTM and GEM release
When the last reference to a TTM BO is dropped, ttm_bo_release() will
acquire the DMA reservation object's wound/wait mutex while trying to
clean up (ttm_bo_cleanup_refs_or_queue() via ttm_bo_release()). It is
therefore essential that drm_gem_object_release() be called after the
TTM BO has been uninitialized, otherwise drm_gem_object_release() has
already destroyed the wound/wait mutex (via dma_resv_fini()).
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions