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| author | Christian König <christian.koenig@amd.com> | 2021-01-15 14:32:39 +0100 |
|---|---|---|
| committer | Christian König <christian.koenig@amd.com> | 2021-01-20 15:05:45 +0100 |
| commit | 7621350c6bb20fb6ab7eb988833ab96eac3dcbef (patch) | |
| tree | 24929d0358a69f7b0a0f65cfa09b41b4687c2ed8 /drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c | |
| parent | f987c9e0f537222e90dd3214bfc481860fe2abe0 (diff) | |
| download | linux-7621350c6bb20fb6ab7eb988833ab96eac3dcbef.tar.gz linux-7621350c6bb20fb6ab7eb988833ab96eac3dcbef.tar.bz2 linux-7621350c6bb20fb6ab7eb988833ab96eac3dcbef.zip | |
drm/syncobj: make lockdep complain on WAIT_FOR_SUBMIT v3
DRM_SYNCOBJ_WAIT_FLAGS_WAIT_FOR_SUBMIT can't be used when we hold locks
since we are basically waiting for userspace to do something.
Holding a lock while doing so can trivial deadlock with page faults
etc...
So make lockdep complain when a driver tries to do this.
v2: Add lockdep_assert_none_held() macro.
v3: Add might_sleep() and also use lockdep_assert_none_held() in the
IOCTL path.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://patchwork.freedesktop.org/patch/414944/
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c')
0 files changed, 0 insertions, 0 deletions