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drm/amdgpu: fix amdgpu_bo_pin_restricted VRAM placing v2

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commit 78d0e182b6c1f5336f6e8cbb197f403276dabc7f upstream.

We could pin BOs into invisible VRAM otherwise.

v2: make logic more readable as suggested by Michel

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com> (v1)
Reviewed-by: Rex Zhu <Rex.Zhu@amd.com> (v1)
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Christian König 2016-01-19 12:48:14 +01:00 committed by Greg Kroah-Hartman
parent 17ab2f1114
commit 7c105b06bc
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
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@ -399,7 +399,8 @@ int amdgpu_bo_pin_restricted(struct amdgpu_bo *bo, u32 domain,
}
if (fpfn > bo->placements[i].fpfn)
bo->placements[i].fpfn = fpfn;
if (lpfn && lpfn < bo->placements[i].lpfn)
if (!bo->placements[i].lpfn ||
(lpfn && lpfn < bo->placements[i].lpfn))
bo->placements[i].lpfn = lpfn;
bo->placements[i].flags |= TTM_PL_FLAG_NO_EVICT;
}