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authorRobin Murphy <robin.murphy@arm.com>2017-09-28 17:55:02 +0300
committerJoerg Roedel <jroedel@suse.de>2017-10-02 16:45:25 +0300
commit4d689b619445894f6b6fcbc496f6d302bd9e44a5 (patch)
tree2abc05f9245266f226629c993089b08ae18a988b /drivers/iommu/io-pgtable-arm-v7s.c
parent32b124492bdf974f68eaef1bde80dc8058aef002 (diff)
downloadlinux-4d689b619445894f6b6fcbc496f6d302bd9e44a5.tar.xz
iommu/io-pgtable-arm-v7s: Convert to IOMMU API TLB sync
Now that the core API issues its own post-unmap TLB sync call, push that operation out from the io-pgtable-arm-v7s internals into the users. For now, we leave the invalidation implicit in the unmap operation, since none of the current users would benefit much from any change to that. Note that the conversion of msm_iommu is implicit, since that apparently has no specific TLB sync operation anyway. CC: Yong Wu <yong.wu@mediatek.com> CC: Rob Clark <robdclark@gmail.com> Signed-off-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/io-pgtable-arm-v7s.c')
-rw-r--r--drivers/iommu/io-pgtable-arm-v7s.c7
1 files changed, 1 insertions, 6 deletions
diff --git a/drivers/iommu/io-pgtable-arm-v7s.c b/drivers/iommu/io-pgtable-arm-v7s.c
index d665d0dc16e8..397531da8d9c 100644
--- a/drivers/iommu/io-pgtable-arm-v7s.c
+++ b/drivers/iommu/io-pgtable-arm-v7s.c
@@ -660,16 +660,11 @@ static int arm_v7s_unmap(struct io_pgtable_ops *ops, unsigned long iova,
size_t size)
{
struct arm_v7s_io_pgtable *data = io_pgtable_ops_to_data(ops);
- size_t unmapped;
if (WARN_ON(upper_32_bits(iova)))
return 0;
- unmapped = __arm_v7s_unmap(data, iova, size, 1, data->pgd);
- if (unmapped)
- io_pgtable_tlb_sync(&data->iop);
-
- return unmapped;
+ return __arm_v7s_unmap(data, iova, size, 1, data->pgd);
}
static phys_addr_t arm_v7s_iova_to_phys(struct io_pgtable_ops *ops,