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| author |   Dmitry Osipenko <digetx@gmail.com> | 2018-12-12 23:38:47 +0300 |
|---|---|---|
| committer |   Joerg Roedel <jroedel@suse.de> | 2019-01-16 13:54:09 +0100 |
| commit | 1d7ae53b152dbc5ba0a4f6a83ecc42ac66f52d11 (patch) | |
| tree | f5ac284e3b5cd24dbf01ee29c7a32942ceea3a5b /include/linux/iommu.h | |
| parent | iommu/tegra: gart: Ignore devices without IOMMU phandle in DT (diff) | |
| download | wireguard-linux-1d7ae53b152dbc5ba0a4f6a83ecc42ac66f52d11.tar.xz wireguard-linux-1d7ae53b152dbc5ba0a4f6a83ecc42ac66f52d11.zip | |
iommu: Introduce iotlb_sync_map callback
Introduce iotlb_sync_map() callback that is invoked in the end of
iommu_map(). This new callback allows IOMMU drivers to avoid syncing
after mapping of each contiguous chunk and sync only when the whole
mapping is completed, optimizing performance of the mapping operation.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'include/linux/iommu.h')
| -rw-r--r-- | include/linux/iommu.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/iommu.h b/include/linux/iommu.h index e90da6b6f3d1..477ef47c357c 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -201,6 +201,7 @@ struct iommu_ops { void (*flush_iotlb_all)(struct iommu_domain *domain); void (*iotlb_range_add)(struct iommu_domain *domain, unsigned long iova, size_t size); + void (*iotlb_sync_map)(struct iommu_domain *domain); void (*iotlb_sync)(struct iommu_domain *domain); phys_addr_t (*iova_to_phys)(struct iommu_domain *domain, dma_addr_t iova); int (*add_device)(struct device *dev); |