diff options
| -rw-r--r-- | drivers/iommu/arm-smmu.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c index 93b9177d4dfd..d01802e7cbfd 100644 --- a/drivers/iommu/arm-smmu.c +++ b/drivers/iommu/arm-smmu.c @@ -264,6 +264,7 @@ enum arm_smmu_s2cr_privcfg { #define TTBCR2_SEP_SHIFT 15 #define TTBCR2_SEP_UPSTREAM (0x7 << TTBCR2_SEP_SHIFT) +#define TTBCR2_AS (1 << 4) #define TTBRn_ASID_SHIFT 48 @@ -783,6 +784,8 @@ static void arm_smmu_init_context_bank(struct arm_smmu_domain *smmu_domain, reg = pgtbl_cfg->arm_lpae_s1_cfg.tcr; reg2 = pgtbl_cfg->arm_lpae_s1_cfg.tcr >> 32; reg2 |= TTBCR2_SEP_UPSTREAM; + if (cfg->fmt == ARM_SMMU_CTX_FMT_AARCH64) + reg2 |= TTBCR2_AS; } if (smmu->version > ARM_SMMU_V1) writel_relaxed(reg2, cb_base + ARM_SMMU_CB_TTBCR2); |