diff mbox series

[v2,5/6] iommu/mediatek: Enable granule_ignore for unmap

Message ID 20201119061836.15238-6-yong.wu@mediatek.com (mailing list archive)
State New
Headers show
Series MediaTek IOMMU improve tlb flush performance in map/unmap | expand

Commit Message

Yong Wu Nov. 19, 2020, 6:18 a.m. UTC
MediaTek IOMMU HW don't care about granule when it flush tlb.
In order to flush tlb once when unmap, Enable this flag to gather all
the iova chunk of unmap.

Signed-off-by: Yong Wu <yong.wu@mediatek.com>
 drivers/iommu/mtk_iommu.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series


diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 8c2d4a225666..94786860bd84 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -432,6 +432,7 @@  static size_t mtk_iommu_unmap(struct iommu_domain *domain,
 	struct mtk_iommu_domain *dom = to_mtk_domain(domain);
+	gather->granule_ignore = true;
 	return dom->iop->unmap(dom->iop, iova, size, gather);