Messages in this thread Patch in this message | | | From | Jordan Crouse <> | Subject | [PATCH v8 4/7] iommu/arm-smmu: Add a pointer to the attached device to smmu_domain | Date | Thu, 11 Jun 2020 16:21:25 -0600 |
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Add a link to the pointer to the struct device that is attached to a domain. This makes it easy to get the pointer if it is needed in the implementation specific code.
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org> ---
drivers/iommu/arm-smmu.c | 1 + drivers/iommu/arm-smmu.h | 1 + 2 files changed, 2 insertions(+)
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c index 048de2681670..743d75b9ff3f 100644 --- a/drivers/iommu/arm-smmu.c +++ b/drivers/iommu/arm-smmu.c @@ -801,6 +801,7 @@ static int arm_smmu_init_domain_context(struct iommu_domain *domain, cfg->asid = cfg->cbndx; smmu_domain->smmu = smmu; + smmu_domain->dev = dev; pgtbl_cfg = (struct io_pgtable_cfg) { .pgsize_bitmap = smmu->pgsize_bitmap, diff --git a/drivers/iommu/arm-smmu.h b/drivers/iommu/arm-smmu.h index 5f2de20e883b..d33cfe26b2f5 100644 --- a/drivers/iommu/arm-smmu.h +++ b/drivers/iommu/arm-smmu.h @@ -345,6 +345,7 @@ struct arm_smmu_domain { struct mutex init_mutex; /* Protects smmu pointer */ spinlock_t cb_lock; /* Serialises ATS1* ops and TLB syncs */ struct iommu_domain domain; + struct device *dev; /* Device attached to this domain */ }; static inline u32 arm_smmu_lpae_tcr(struct io_pgtable_cfg *cfg) -- 2.17.1
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