Commit e1b61f8e authored by Oded Gabbay's avatar Oded Gabbay
Browse files

habanalabs/gaudi: invalidate PMMU mem cache on init 



This must be done to clear the internal mem cache so we won't get
ecc errors on the first invalidation.

Signed-off-by: default avatarOded Gabbay <ogabbay@kernel.org>
parent 6be42f0a

drivers/misc/habanalabs/gaudi/gaudi.c

+3 −0
Original line number Diff line number Diff line
@@ -3905,6 +3905,9 @@ static int gaudi_mmu_init(struct hl_device *hdev) 
	WREG32(mmSTLB_CACHE_INV_BASE_39_8, MMU_CACHE_MNG_ADDR >> 8);

	WREG32(mmSTLB_CACHE_INV_BASE_49_40, MMU_CACHE_MNG_ADDR >> 40);



	/* mem cache invalidation */

	WREG32(mmSTLB_MEM_CACHE_INVALIDATION, 1);



	hdev->asic_funcs->mmu_invalidate_cache(hdev, true, 0);



	WREG32(mmMMU_UP_MMU_ENABLE, 1);