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| author | Jason Gunthorpe <jgg@nvidia.com> | 2024-06-25 09:37:34 -0300 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2024-07-02 15:39:47 +0100 |
| commit | ad10dce61303d82f7bdd2dbb116e02146778f728 (patch) | |
| tree | 9a0bb266800c660b4008ece10762ce1e9ce72731 /drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h | |
| parent | 85f2fb6ef4137c631c9d2663716d998d7e4f164f (diff) | |
| download | lwn-ad10dce61303d82f7bdd2dbb116e02146778f728.tar.gz lwn-ad10dce61303d82f7bdd2dbb116e02146778f728.zip | |
iommu/arm-smmu-v3: Make smmu_domain->devices into an allocated list
The next patch will need to store the same master twice (with different
SSIDs), so allocate memory for each list element.
Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Tested-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
Reviewed-by: Michael Shavit <mshavit@google.com>
Reviewed-by: Nicolin Chen <nicolinc@nvidia.com>
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/3-v9-5cd718286059+79186-smmuv3_newapi_p2b_jgg@nvidia.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h')
| -rw-r--r-- | drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h index 6a74d3d884fe..01769b5286a8 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h @@ -697,7 +697,6 @@ struct arm_smmu_stream { struct arm_smmu_master { struct arm_smmu_device *smmu; struct device *dev; - struct list_head domain_head; struct arm_smmu_stream *streams; /* Locked by the iommu core using the group mutex */ struct arm_smmu_ctx_desc_cfg cd_table; @@ -731,6 +730,7 @@ struct arm_smmu_domain { struct iommu_domain domain; + /* List of struct arm_smmu_master_domain */ struct list_head devices; spinlock_t devices_lock; @@ -767,6 +767,11 @@ void arm_smmu_make_sva_cd(struct arm_smmu_cd *target, u16 asid); #endif +struct arm_smmu_master_domain { + struct list_head devices_elm; + struct arm_smmu_master *master; +}; + static inline struct arm_smmu_domain *to_smmu_domain(struct iommu_domain *dom) { return container_of(dom, struct arm_smmu_domain, domain); |