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| author | Christian König <christian.koenig@amd.com> | 2019-11-28 14:51:46 +0100 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-12-09 17:01:51 -0500 |
| commit | 6ceeb144b1d6952a36afa6c29718beac575f2a3f (patch) | |
| tree | 982a38c4a52076293335c68e4a2bd12c93400772 /drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | |
| parent | 4b4c5638c08d6be3fc4380bda23aa46bbd158073 (diff) | |
| download | lwn-6ceeb144b1d6952a36afa6c29718beac575f2a3f.tar.gz lwn-6ceeb144b1d6952a36afa6c29718beac575f2a3f.zip | |
drm/amdgpu: move VM eviction decision into amdgpu_vm.c
When a page tables needs to be evicted the VM code should
decide if that is possible or not.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index f20b572d2438..145ea95d977a 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -2500,6 +2500,28 @@ void amdgpu_vm_bo_rmv(struct amdgpu_device *adev, } /** + * amdgpu_vm_evictable - check if we can evict a VM + * + * @bo: A page table of the VM. + * + * Check if it is possible to evict a VM. + */ +bool amdgpu_vm_evictable(struct amdgpu_bo *bo) +{ + struct amdgpu_vm_bo_base *bo_base = bo->vm_bo; + + /* Page tables of a destroyed VM can go away immediately */ + if (!bo_base || !bo_base->vm) + return true; + + /* Don't evict VM page tables while they are busy */ + if (!dma_resv_test_signaled_rcu(bo->tbo.base.resv, true)) + return false; + + return true; +} + +/** * amdgpu_vm_bo_invalidate - mark the bo as invalid * * @adev: amdgpu_device pointer |