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Subject[PATCH 1/5] iommu/arm-smmu: Pass io_pgtable_cfg to impl specific init_context
Date
From: Jordan Crouse <jcrouse@codeaurora.org>

Pass the propposed io_pgtable_cfg to the implementation specific
init_context() function to give the implementation an opportunity to
to modify it before it gets passed to io-pgtable.

Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
---
drivers/iommu/arm-smmu-impl.c | 3 ++-
drivers/iommu/arm-smmu.c | 11 ++++++-----
drivers/iommu/arm-smmu.h | 3 ++-
3 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/drivers/iommu/arm-smmu-impl.c b/drivers/iommu/arm-smmu-impl.c
index b2fe72a..33ed682 100644
--- a/drivers/iommu/arm-smmu-impl.c
+++ b/drivers/iommu/arm-smmu-impl.c
@@ -68,7 +68,8 @@ static int cavium_cfg_probe(struct arm_smmu_device *smmu)
return 0;
}

-static int cavium_init_context(struct arm_smmu_domain *smmu_domain)
+static int cavium_init_context(struct arm_smmu_domain *smmu_domain,
+ struct io_pgtable_cfg *pgtbl_cfg)
{
struct cavium_smmu *cs = container_of(smmu_domain->smmu,
struct cavium_smmu, smmu);
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index eee48f9..4f7e0c0 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -758,11 +758,6 @@ static int arm_smmu_init_domain_context(struct iommu_domain *domain,
cfg->asid = cfg->cbndx;

smmu_domain->smmu = smmu;
- if (smmu->impl && smmu->impl->init_context) {
- ret = smmu->impl->init_context(smmu_domain);
- if (ret)
- goto out_unlock;
- }

smmu_domain->pgtbl_cfg = (struct io_pgtable_cfg) {
.pgsize_bitmap = smmu->pgsize_bitmap,
@@ -773,6 +768,12 @@ static int arm_smmu_init_domain_context(struct iommu_domain *domain,
.iommu_dev = smmu->dev,
};

+ if (smmu->impl && smmu->impl->init_context) {
+ ret = smmu->impl->init_context(smmu_domain, &smmu_domain->pgtbl_cfg);
+ if (ret)
+ goto out_unlock;
+ }
+
if (smmu_domain->non_strict)
smmu_domain->pgtbl_cfg.quirks |= IO_PGTABLE_QUIRK_NON_STRICT;

diff --git a/drivers/iommu/arm-smmu.h b/drivers/iommu/arm-smmu.h
index b2df38c..f57cdbe 100644
--- a/drivers/iommu/arm-smmu.h
+++ b/drivers/iommu/arm-smmu.h
@@ -335,7 +335,8 @@ struct arm_smmu_impl {
u64 val);
int (*cfg_probe)(struct arm_smmu_device *smmu);
int (*reset)(struct arm_smmu_device *smmu);
- int (*init_context)(struct arm_smmu_domain *smmu_domain);
+ int (*init_context)(struct arm_smmu_domain *smmu_domain,
+ struct io_pgtable_cfg *pgtbl_cfg);
};

static inline void __iomem *arm_smmu_page(struct arm_smmu_device *smmu, int n)
--
1.9.1
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