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| author | Yong Wu <yong.wu@mediatek.com> | 2021-01-07 20:29:04 +0800 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2021-01-27 12:32:26 +0000 |
| commit | 2ebbd25873cef06f739489fd8ff9f707a3dfa2fa (patch) | |
| tree | 1740375c71f22f2ccb80fc1713d86e641f5bbe5f /drivers/iommu/tegra-gart.c | |
| parent | d8c1df02ac7f2c802a9b2afc0f5c888c4217f1d5 (diff) | |
| download | linux-2ebbd25873cef06f739489fd8ff9f707a3dfa2fa.tar.bz2 | |
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 'drivers/iommu/tegra-gart.c')
| -rw-r--r-- | drivers/iommu/tegra-gart.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/iommu/tegra-gart.c b/drivers/iommu/tegra-gart.c index fac720273889..05e8e19b8269 100644 --- a/drivers/iommu/tegra-gart.c +++ b/drivers/iommu/tegra-gart.c @@ -261,7 +261,8 @@ static int gart_iommu_of_xlate(struct device *dev, return 0; } -static void gart_iommu_sync_map(struct iommu_domain *domain) +static void gart_iommu_sync_map(struct iommu_domain *domain, unsigned long iova, + size_t size) { FLUSH_GART_REGS(gart_handle); } @@ -269,7 +270,9 @@ static void gart_iommu_sync_map(struct iommu_domain *domain) static void gart_iommu_sync(struct iommu_domain *domain, struct iommu_iotlb_gather *gather) { - gart_iommu_sync_map(domain); + size_t length = gather->end - gather->start; + + gart_iommu_sync_map(domain, gather->start, length); } static const struct iommu_ops gart_iommu_ops = { |