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| author | Yong Wu <yong.wu@mediatek.com> | 2021-01-07 13:29:05 +0100 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2021-01-27 13:32:26 +0100 |
| commit | 20143451eff044310520932fb372704c99658b33 (patch) | |
| tree | 34f7d7f4ca36ba35a97b418c6d90ed0d867207b6 /drivers/iommu/mtk_iommu.c | |
| parent | iommu: Add iova and size as parameters in iotlb_sync_map (diff) | |
| download | linux-20143451eff044310520932fb372704c99658b33.tar.xz linux-20143451eff044310520932fb372704c99658b33.zip | |
iommu/mediatek: Add iotlb_sync_map to sync whole the iova range
Remove IO_PGTABLE_QUIRK_TLBI_ON_MAP to avoid tlb sync for each a small
chunk memory, Use the new iotlb_sync_map to tlb_sync once for whole the
iova range of iommu_map.
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/20210107122909.16317-4-yong.wu@mediatek.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'drivers/iommu/mtk_iommu.c')
| -rw-r--r-- | drivers/iommu/mtk_iommu.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c index 8e56cec532e7..f579fc21971e 100644 --- a/drivers/iommu/mtk_iommu.c +++ b/drivers/iommu/mtk_iommu.c @@ -322,7 +322,6 @@ static int mtk_iommu_domain_finalise(struct mtk_iommu_domain *dom) dom->cfg = (struct io_pgtable_cfg) { .quirks = IO_PGTABLE_QUIRK_ARM_NS | IO_PGTABLE_QUIRK_NO_PERMS | - IO_PGTABLE_QUIRK_TLBI_ON_MAP | IO_PGTABLE_QUIRK_ARM_MTK_EXT, .pgsize_bitmap = mtk_iommu_ops.pgsize_bitmap, .ias = 32, @@ -453,6 +452,14 @@ static void mtk_iommu_iotlb_sync(struct iommu_domain *domain, data); } +static void mtk_iommu_sync_map(struct iommu_domain *domain, unsigned long iova, + size_t size) +{ + struct mtk_iommu_data *data = mtk_iommu_get_m4u_data(); + + mtk_iommu_tlb_flush_range_sync(iova, size, size, data); +} + static phys_addr_t mtk_iommu_iova_to_phys(struct iommu_domain *domain, dma_addr_t iova) { @@ -539,6 +546,7 @@ static const struct iommu_ops mtk_iommu_ops = { .unmap = mtk_iommu_unmap, .flush_iotlb_all = mtk_iommu_flush_iotlb_all, .iotlb_sync = mtk_iommu_iotlb_sync, + .iotlb_sync_map = mtk_iommu_sync_map, .iova_to_phys = mtk_iommu_iova_to_phys, .probe_device = mtk_iommu_probe_device, .release_device = mtk_iommu_release_device, |