Commit edcfe229 authored by Harish Kasiviswanathan's avatar Harish Kasiviswanathan Committed by Alex Deucher
Browse files

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



Heavy-weight TLB flush is required after unmap on all GPUs for
correctness and security.

Signed-off-by: default avatarHarish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Reviewed-by: default avatarFelix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
parent 29319378

drivers/gpu/drm/amd/amdkfd/kfd_priv.h

+1 −2
Original line number Diff line number Diff line
@@ -1466,8 +1466,7 @@ 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);

}