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>
diff --git a/drivers/iommu/msm_iommu.c b/drivers/iommu/msm_iommu.c
index 681ab3d..6413209 100644
--- a/drivers/iommu/msm_iommu.c
+++ b/drivers/iommu/msm_iommu.c
@@ -178,8 +178,24 @@ static void __flush_iotlb_sync(void *cookie)
*/
}
+static void __flush_iotlb_walk(unsigned long iova, size_t size,
+ size_t granule, void *cookie)
+{
+ __flush_iotlb_range(iova, size, granule, false, cookie);
+ __flush_iotlb_sync(cookie);
+}
+
+static void __flush_iotlb_leaf(unsigned long iova, size_t size,
+ size_t granule, void *cookie)
+{
+ __flush_iotlb_range(iova, size, granule, true, cookie);
+ __flush_iotlb_sync(cookie);
+}
+
static const struct iommu_flush_ops msm_iommu_flush_ops = {
.tlb_flush_all = __flush_iotlb,
+ .tlb_flush_walk = __flush_iotlb_walk,
+ .tlb_flush_leaf = __flush_iotlb_leaf,
.tlb_add_flush = __flush_iotlb_range,
.tlb_sync = __flush_iotlb_sync,
};
