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| author |   Christian König <christian.koenig@amd.com> | 2018-11-07 13:55:01 +0100 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2019-03-19 15:36:58 -0500 |
| commit | 1bd4e4ca7bb8f681ff4e2b05c97ce975ccd781d6 (patch) | |
| tree | 5230713e555b89637beb49aadf636823d0f7de6f /drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | |
| parent | drm/amdgpu: wait for VM to become idle during flush (diff) | |
| download | linux-dev-1bd4e4ca7bb8f681ff4e2b05c97ce975ccd781d6.tar.xz linux-dev-1bd4e4ca7bb8f681ff4e2b05c97ce975ccd781d6.zip | |
drm/amdgpu: stop evicting busy PDs/PTs
Otherwise we won't be able to cleanly handle page faults.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index cd0ccfbbcb84..c1240bf243ba 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -1371,6 +1371,13 @@ static bool amdgpu_ttm_bo_eviction_valuable(struct ttm_buffer_object *bo, struct dma_fence *f; int i; + /* Don't evict VM page tables while they are busy, otherwise we can't + * cleanly handle page faults. + */ + if (bo->type == ttm_bo_type_kernel && + !reservation_object_test_signaled_rcu(bo->resv, true)) + return false; + /* If bo is a KFD BO, check if the bo belongs to the current process. * If true, then return false as any KFD process needs all its BOs to * be resident to run successfully |