To support SVM range VRAM overcommitment, TTM should be able to evict
svm bo of same process to system memory, to get space to alloc new svm
bo.
Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
- * amdkfd_fence_check_mm - Check if @mm is same as that of the fence @f
- * if same return TRUE else return FALSE.
+ * amdkfd_fence_check_mm - Check whether to prevent eviction of @f by @mm
*
* @f: [IN] fence
* @mm: [IN] mm that needs to be verified
*
* @f: [IN] fence
* @mm: [IN] mm that needs to be verified
+ *
+ * Check if @mm is same as that of the fence @f, if same return TRUE else
+ * return FALSE.
+ * For svm bo, which support vram overcommitment, always return FALSE.
*/
bool amdkfd_fence_check_mm(struct dma_fence *f, struct mm_struct *mm)
{
*/
bool amdkfd_fence_check_mm(struct dma_fence *f, struct mm_struct *mm)
{
if (!fence)
return false;
if (!fence)
return false;
- else if (fence->mm == mm)
+ else if (fence->mm == mm && !fence->svm_bo)
return true;
return false;
return true;
return false;