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| author | Yong Wu <yong.wu@mediatek.com> | 2021-01-07 15:29:04 +0300 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2021-01-27 15:32:26 +0300 |
| commit | 2ebbd25873cef06f739489fd8ff9f707a3dfa2fa (patch) | |
| tree | 1740375c71f22f2ccb80fc1713d86e641f5bbe5f /include/linux/iommu.h | |
| parent | d8c1df02ac7f2c802a9b2afc0f5c888c4217f1d5 (diff) | |
| download | linux-2ebbd25873cef06f739489fd8ff9f707a3dfa2fa.tar.xz | |
iommu: Add iova and size as parameters in iotlb_sync_map
iotlb_sync_map allow IOMMU drivers tlb sync after completing the whole
mapping. This patch adds iova and size as the parameters in it. then the
IOMMU driver could flush tlb with the whole range once after iova mapping
to improve performance.
Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20210107122909.16317-3-yong.wu@mediatek.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'include/linux/iommu.h')
| -rw-r--r-- | include/linux/iommu.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/iommu.h b/include/linux/iommu.h index b3f0e2018c62..9ce0aa9e236b 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -246,7 +246,8 @@ struct iommu_ops { size_t (*unmap)(struct iommu_domain *domain, unsigned long iova, size_t size, struct iommu_iotlb_gather *iotlb_gather); void (*flush_iotlb_all)(struct iommu_domain *domain); - void (*iotlb_sync_map)(struct iommu_domain *domain); + void (*iotlb_sync_map)(struct iommu_domain *domain, unsigned long iova, + size_t size); void (*iotlb_sync)(struct iommu_domain *domain, struct iommu_iotlb_gather *iotlb_gather); phys_addr_t (*iova_to_phys)(struct iommu_domain *domain, dma_addr_t iova); |