drm/amdkfd: Insert missing TLB flush on GFX10 and later

commit edcfe22 upstream. Heavy-weight TLB flush is required after unmap on all GPUs for correctness and security. Signed-off-by: Harish Kasiviswanathan <[email protected]> Reviewed-by: Felix Kuehling <[email protected]> Signed-off-by: Alex Deucher <[email protected]> Cc: [email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
1054009064 · Sep 23, 2023 · 944ba00 · 944ba00
1 parent 4c5b744
commit 944ba00
Showing 1 changed file with 1 addition and 2 deletions.
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
@@ -1487,8 +1487,7 @@ void kfd_flush_tlb(struct kfd_process_device *pdd, enum TLB_FLUSH_TYPE type);
 
 static inline bool kfd_flush_tlb_after_unmap(struct kfd_dev *dev)
 {
-	return KFD_GC_VERSION(dev) == IP_VERSION(9, 4, 3) ||
-	       KFD_GC_VERSION(dev) == IP_VERSION(9, 4, 2) ||
+	return KFD_GC_VERSION(dev) > IP_VERSION(9, 4, 2) ||
 	       (KFD_GC_VERSION(dev) == IP_VERSION(9, 4, 1) && dev->sdma_fw_version >= 18) ||
 	       KFD_GC_VERSION(dev) == IP_VERSION(9, 4, 0);
 }