diff options
| author | Robin Murphy <robin.murphy@arm.com> | 2017-09-28 17:55:01 +0300 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2017-10-02 16:45:25 +0300 |
| commit | 32b124492bdf974f68eaef1bde80dc8058aef002 (patch) | |
| tree | 65e5538efdefea61e632c17112f0e511dd2b7b10 /drivers/iommu/arm-smmu-v3.c | |
| parent | abbb8a09384f69f7bb05936879e51933c146afba (diff) | |
| download | linux-32b124492bdf974f68eaef1bde80dc8058aef002.tar.xz | |
iommu/io-pgtable-arm: 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 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.
CC: Magnus Damm <damm+renesas@opensource.se>
CC: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/arm-smmu-v3.c')
| -rw-r--r-- | drivers/iommu/arm-smmu-v3.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c index e67ba6c40faf..ee0c7b73cff7 100644 --- a/drivers/iommu/arm-smmu-v3.c +++ b/drivers/iommu/arm-smmu-v3.c @@ -1743,6 +1743,14 @@ arm_smmu_unmap(struct iommu_domain *domain, unsigned long iova, size_t size) return ops->unmap(ops, iova, size); } +static void arm_smmu_iotlb_sync(struct iommu_domain *domain) +{ + struct arm_smmu_device *smmu = to_smmu_domain(domain)->smmu; + + if (smmu) + __arm_smmu_tlb_sync(smmu); +} + static phys_addr_t arm_smmu_iova_to_phys(struct iommu_domain *domain, dma_addr_t iova) { @@ -1963,6 +1971,8 @@ static struct iommu_ops arm_smmu_ops = { .map = arm_smmu_map, .unmap = arm_smmu_unmap, .map_sg = default_iommu_map_sg, + .flush_iotlb_all = arm_smmu_iotlb_sync, + .iotlb_sync = arm_smmu_iotlb_sync, .iova_to_phys = arm_smmu_iova_to_phys, .add_device = arm_smmu_add_device, .remove_device = arm_smmu_remove_device, |