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authorWill Deacon <will@kernel.org>2019-07-02 17:44:25 +0200
committerWill Deacon <will@kernel.org>2019-07-29 18:22:56 +0200
commit05aed9412b0bd0d9a985d94010c42ff0a5c6cc29 (patch)
tree1c4b9df8569d4c334c57518f49ecc7636489c299 /drivers/iommu/mtk_iommu.c
parentiommu/io-pgtable: Introduce tlb_flush_walk() and tlb_flush_leaf() (diff)
downloadlinux-05aed9412b0bd0d9a985d94010c42ff0a5c6cc29.tar.xz
linux-05aed9412b0bd0d9a985d94010c42ff0a5c6cc29.zip
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 <will@kernel.org>
Diffstat (limited to 'drivers/iommu/mtk_iommu.c')
-rw-r--r--drivers/iommu/mtk_iommu.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index c870f1674903..85a7176bf9ae 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -188,8 +188,24 @@ static void mtk_iommu_tlb_sync(void *cookie)
}
}
+static void mtk_iommu_tlb_flush_walk(unsigned long iova, size_t size,
+ size_t granule, void *cookie)
+{
+ mtk_iommu_tlb_add_flush_nosync(iova, size, granule, false, cookie);
+ mtk_iommu_tlb_sync(cookie);
+}
+
+static void mtk_iommu_tlb_flush_leaf(unsigned long iova, size_t size,
+ size_t granule, void *cookie)
+{
+ mtk_iommu_tlb_add_flush_nosync(iova, size, granule, true, cookie);
+ mtk_iommu_tlb_sync(cookie);
+}
+
static const struct iommu_flush_ops mtk_iommu_flush_ops = {
.tlb_flush_all = mtk_iommu_tlb_flush_all,
+ .tlb_flush_walk = mtk_iommu_tlb_flush_walk,
+ .tlb_flush_leaf = mtk_iommu_tlb_flush_leaf,
.tlb_add_flush = mtk_iommu_tlb_add_flush_nosync,
.tlb_sync = mtk_iommu_tlb_sync,
};