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iommu/arm-smmu-v3: Implement the unmap_pages() IOMMU driver callback
Implement the unmap_pages() callback for ARM SMMUV3 driver to allow calls from iommu_unmap to unmap multiple pages of the same size in one call. Also remove the unmap() callback for the ARM SMMUV3 driver as it will no longer be used. Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com> Acked-by: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/r/1627697831-158822-2-git-send-email-chenxiang66@hisilicon.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
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parent
75cc1018a9
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59103c79f4
1 changed files with 5 additions and 4 deletions
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@ -2450,8 +2450,9 @@ static int arm_smmu_map(struct iommu_domain *domain, unsigned long iova,
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return ops->map(ops, iova, paddr, size, prot, gfp);
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}
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static size_t arm_smmu_unmap(struct iommu_domain *domain, unsigned long iova,
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size_t size, struct iommu_iotlb_gather *gather)
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static size_t arm_smmu_unmap_pages(struct iommu_domain *domain, unsigned long iova,
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size_t pgsize, size_t pgcount,
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struct iommu_iotlb_gather *gather)
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{
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struct arm_smmu_domain *smmu_domain = to_smmu_domain(domain);
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struct io_pgtable_ops *ops = smmu_domain->pgtbl_ops;
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@ -2459,7 +2460,7 @@ static size_t arm_smmu_unmap(struct iommu_domain *domain, unsigned long iova,
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if (!ops)
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return 0;
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return ops->unmap(ops, iova, size, gather);
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return ops->unmap_pages(ops, iova, pgsize, pgcount, gather);
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}
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static void arm_smmu_flush_iotlb_all(struct iommu_domain *domain)
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@ -2823,7 +2824,7 @@ static struct iommu_ops arm_smmu_ops = {
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.domain_free = arm_smmu_domain_free,
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.attach_dev = arm_smmu_attach_dev,
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.map = arm_smmu_map,
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.unmap = arm_smmu_unmap,
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.unmap_pages = arm_smmu_unmap_pages,
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.flush_iotlb_all = arm_smmu_flush_iotlb_all,
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.iotlb_sync = arm_smmu_iotlb_sync,
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.iova_to_phys = arm_smmu_iova_to_phys,
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