diff options
| author | Linux Build Service Account <lnxbuild@localhost> | 2016-10-11 01:16:56 -0700 |
|---|---|---|
| committer | Gerrit - the friendly Code Review server <code-review@localhost> | 2016-10-11 01:16:55 -0700 |
| commit | 772e0827b355fb71757fbfe5e0df7e04b204f8fd (patch) | |
| tree | 3b9ea0f80ca8558343440e9e9cd6af13edc4b987 | |
| parent | 95e0723486263a91cf0bf0aacb6905570cd3b467 (diff) | |
| parent | 8a16ebcc107f199621ac6a30e6367240011315d0 (diff) | |
Merge "iommu/arm-smmu: Remove DOMAIN_ATTR_COHERENT_HTW_DISABLE"
| -rw-r--r-- | drivers/iommu/arm-smmu.c | 39 |
1 files changed, 0 insertions, 39 deletions
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c index c69927bd4ff2..afa519aa8203 100644 --- a/drivers/iommu/arm-smmu.c +++ b/drivers/iommu/arm-smmu.c @@ -1888,8 +1888,6 @@ static struct iommu_domain *arm_smmu_domain_alloc(unsigned type) return NULL; smmu_domain->secure_vmid = VMID_INVAL; - /* disable coherent htw by default */ - smmu_domain->attributes = (1 << DOMAIN_ATTR_COHERENT_HTW_DISABLE); INIT_LIST_HEAD(&smmu_domain->pte_info_list); INIT_LIST_HEAD(&smmu_domain->unassign_list); INIT_LIST_HEAD(&smmu_domain->secure_pool_list); @@ -2263,15 +2261,6 @@ static int arm_smmu_attach_dev(struct iommu_domain *domain, struct device *dev) goto err_destroy_domain_context; } - if (!(smmu_domain->attributes & (1 << DOMAIN_ATTR_COHERENT_HTW_DISABLE)) - && !(smmu->features & ARM_SMMU_FEAT_COHERENT_WALK)) { - dev_err(dev, - "Can't attach: this domain wants coherent htw but %s doesn't support it\n", - dev_name(smmu_domain->smmu->dev)); - ret = -EINVAL; - goto err_destroy_domain_context; - } - /* Looks ok, so add the device to the domain */ ret = arm_smmu_domain_add_master(smmu_domain, cfg); if (ret) @@ -2977,11 +2966,6 @@ static int arm_smmu_domain_get_attr(struct iommu_domain *domain, *(int *)data = (smmu_domain->stage == ARM_SMMU_DOMAIN_NESTED); ret = 0; break; - case DOMAIN_ATTR_COHERENT_HTW_DISABLE: - *((int *)data) = !!(smmu_domain->attributes & - (1 << DOMAIN_ATTR_COHERENT_HTW_DISABLE)); - ret = 0; - break; case DOMAIN_ATTR_SECURE_VMID: *((int *)data) = smmu_domain->secure_vmid; ret = 0; @@ -3083,29 +3067,6 @@ static int arm_smmu_domain_set_attr(struct iommu_domain *domain, else smmu_domain->stage = ARM_SMMU_DOMAIN_S1; break; - case DOMAIN_ATTR_COHERENT_HTW_DISABLE: - { - struct arm_smmu_device *smmu; - int htw_disable = *((int *)data); - - smmu = smmu_domain->smmu; - - if (smmu && !(smmu->features & ARM_SMMU_FEAT_COHERENT_WALK) - && !htw_disable) { - dev_err(smmu->dev, - "Can't enable coherent htw on this domain: this SMMU doesn't support it\n"); - ret = -EINVAL; - goto out_unlock; - } - - if (htw_disable) - smmu_domain->attributes |= - (1 << DOMAIN_ATTR_COHERENT_HTW_DISABLE); - else - smmu_domain->attributes &= - ~(1 << DOMAIN_ATTR_COHERENT_HTW_DISABLE); - break; - } case DOMAIN_ATTR_SECURE_VMID: BUG_ON(smmu_domain->secure_vmid != VMID_INVAL); smmu_domain->secure_vmid = *((int *)data); |