From 05aed9412b0bd0d9a985d94010c42ff0a5c6cc29 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Tue, 2 Jul 2019 16:44:25 +0100 Subject: iommu/io-pgtable: Hook up ->tlb_flush_walk() and ->tlb_flush_leaf() in drivers Hook up ->tlb_flush_walk() and ->tlb_flush_leaf() in drivers using the io-pgtable API so that we can start making use of them in the page-table code. For now, they can just wrap the implementations of ->tlb_add_flush and ->tlb_sync pending future optimisation in each driver. Signed-off-by: Will Deacon --- drivers/iommu/arm-smmu.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'drivers/iommu/arm-smmu.c') diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c index e535ae2a9e65..e9f01b860ae3 100644 --- a/drivers/iommu/arm-smmu.c +++ b/drivers/iommu/arm-smmu.c @@ -547,20 +547,44 @@ static void arm_smmu_tlb_inv_vmid_nosync(unsigned long iova, size_t size, writel_relaxed(smmu_domain->cfg.vmid, base + ARM_SMMU_GR0_TLBIVMID); } +static void arm_smmu_tlb_inv_walk(unsigned long iova, size_t size, + size_t granule, void *cookie) +{ + struct arm_smmu_domain *smmu_domain = cookie; + + smmu_domain->tlb_ops->tlb_add_flush(iova, size, granule, false, cookie); + smmu_domain->tlb_ops->tlb_sync(cookie); +} + +static void arm_smmu_tlb_inv_leaf(unsigned long iova, size_t size, + size_t granule, void *cookie) +{ + struct arm_smmu_domain *smmu_domain = cookie; + + smmu_domain->tlb_ops->tlb_add_flush(iova, size, granule, true, cookie); + smmu_domain->tlb_ops->tlb_sync(cookie); +} + static const struct iommu_flush_ops arm_smmu_s1_tlb_ops = { .tlb_flush_all = arm_smmu_tlb_inv_context_s1, + .tlb_flush_walk = arm_smmu_tlb_inv_walk, + .tlb_flush_leaf = arm_smmu_tlb_inv_leaf, .tlb_add_flush = arm_smmu_tlb_inv_range_nosync, .tlb_sync = arm_smmu_tlb_sync_context, }; static const struct iommu_flush_ops arm_smmu_s2_tlb_ops_v2 = { .tlb_flush_all = arm_smmu_tlb_inv_context_s2, + .tlb_flush_walk = arm_smmu_tlb_inv_walk, + .tlb_flush_leaf = arm_smmu_tlb_inv_leaf, .tlb_add_flush = arm_smmu_tlb_inv_range_nosync, .tlb_sync = arm_smmu_tlb_sync_context, }; static const struct iommu_flush_ops arm_smmu_s2_tlb_ops_v1 = { .tlb_flush_all = arm_smmu_tlb_inv_context_s2, + .tlb_flush_walk = arm_smmu_tlb_inv_walk, + .tlb_flush_leaf = arm_smmu_tlb_inv_leaf, .tlb_add_flush = arm_smmu_tlb_inv_vmid_nosync, .tlb_sync = arm_smmu_tlb_sync_vmid, }; -- cgit v1.2.3