Commit 2634ef1b authored by Mukul Joshi's avatar Mukul Joshi Committed by Alex Deucher
Browse files

drm/amdkfd: Fix PTE clearing during SVM unmap on GFX 12.1 



During migration from VRAM to RAM, when PTE is cleared, reset
the PTE to always ensure that PTE.P=1 is set on GFX 12.1. If
PTE.P is not set, it can lead to TF faults.

Signed-off-by: default avatarMukul Joshi <mukul.joshi@amd.com>
Reviewed-by: default avatarAlex Sierra <alex.sierra@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 3a338bb1

drivers/gpu/drm/amd/amdkfd/kfd_svm.c

+1 −1
Original line number Diff line number Diff line
@@ -1313,7 +1313,7 @@ svm_range_unmap_from_gpu(struct amdgpu_device *adev, struct amdgpu_vm *vm, 
			 uint64_t start, uint64_t last,

			 struct dma_fence **fence)

{

	uint64_t init_pte_value = 0;

	uint64_t init_pte_value = adev->gmc.init_pte_flags;



	pr_debug("[0x%llx 0x%llx]\n", start, last);