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Commit 1e7c1ec1 authored by Oded Gabbay's avatar Oded Gabbay Committed by Greg Kroah-Hartman
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habanalabs: fix mmu cache registers init 



This patch fix an incorrect initialization of the MMU cache registers. The
shift operation was done in the wrong direction.

Signed-off-by: default avatarOded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent a28ce422

drivers/misc/habanalabs/goya/goya.c

+3 −2
Original line number Diff line number Diff line
@@ -2675,8 +2675,9 @@ static int goya_mmu_init(struct hl_device *hdev) 
	goya->hw_cap_initialized |= HW_CAP_MMU;



	/* init MMU cache manage page */

	WREG32(mmSTLB_CACHE_INV_BASE_39_8, MMU_CACHE_MNG_ADDR >> 8);

	WREG32(mmSTLB_CACHE_INV_BASE_49_40, MMU_CACHE_MNG_ADDR << 40);

	WREG32(mmSTLB_CACHE_INV_BASE_39_8,

				lower_32_bits(MMU_CACHE_MNG_ADDR >> 8));

	WREG32(mmSTLB_CACHE_INV_BASE_49_40, MMU_CACHE_MNG_ADDR >> 40);



	/* Remove follower feature due to performance bug */

	WREG32_AND(mmSTLB_STLB_FEATURE_EN,