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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: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Oded Gabbay 2019-02-28 10:46:13 +02:00 committed by Greg Kroah-Hartman
parent a28ce422a6
commit 1e7c1ec14b
1 changed files with 3 additions and 2 deletions
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5
drivers/misc/habanalabs/goya/goya.c
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@ -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,