| Message ID | 1425315442-29584-1-git-send-email-b.reynal@virtualopensystems.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c index fc13dd5..d4beca4 100644 --- a/drivers/iommu/arm-smmu.c +++ b/drivers/iommu/arm-smmu.c @@ -1556,7 +1556,7 @@ static int arm_smmu_device_cfg_probe(struct arm_smmu_device *smmu) return -ENODEV; } - if (smmu->version == 1 || (!(id & ID0_ATOSNS) && (id & ID0_S1TS))) { + if ((id & ID0_S1TS) && ((smmu->version == 1) || (id & ID0_ATOSNS))) { smmu->features |= ARM_SMMU_FEAT_TRANS_OPS; dev_notice(smmu->dev, "\taddress translation ops\n"); }
This patch is a fix to "iommu/arm-smmu: add support for iova_to_phys through ATS1PR". According to ARM documentation, translation registers are optional even in SMMUv1, so ID0_S1TS needs to be checked to verify their presence. Signed-off-by: Baptiste Reynal <b.reynal@virtualopensystems.com> --- drivers/iommu/arm-smmu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)