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>

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,
 };