From: Yong Wu <yong.wu@mediatek.com>
To: Joerg Roedel <joro@8bytes.org>, Will Deacon <will@kernel.org>,
"Robin Murphy" <robin.murphy@arm.com>
Cc: youlin.pei@mediatek.com, anan.sun@mediatek.com,
Nicolas Boichat <drinkcat@chromium.org>,
srv_heupstream@mediatek.com, chao.hao@mediatek.com,
linux-kernel@vger.kernel.org,
Krzysztof Kozlowski <krzk@kernel.org>,
Christoph Hellwig <hch@infradead.org>,
Tomasz Figa <tfiga@google.com>,
iommu@lists.linux-foundation.org,
David Laight <David.Laight@ACULAB.COM>,
linux-mediatek@lists.infradead.org, yong.wu@mediatek.com,
Matthias Brugger <matthias.bgg@gmail.com>,
Greg Kroah-Hartman <gregkh@google.com>,
kernel-team@android.com, linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 3/7] iommu/mediatek: Add iotlb_sync_map to sync whole the iova range
Date: Thu, 7 Jan 2021 20:29:05 +0800 [thread overview]
Message-ID: <20210107122909.16317-4-yong.wu@mediatek.com> (raw)
In-Reply-To: <20210107122909.16317-1-yong.wu@mediatek.com>
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>
---
drivers/iommu/mtk_iommu.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
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,
--
2.18.0
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next prev parent reply other threads:[~2021-01-07 12:54 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-07 12:29 [PATCH v4 0/7] MediaTek IOMMU improve tlb flush performance in map/unmap Yong Wu
2021-01-07 12:29 ` [PATCH v4 1/7] iommu: Move iotlb_sync_map out from __iommu_map Yong Wu
2021-02-02 1:07 ` Doug Anderson
2021-01-07 12:29 ` [PATCH v4 2/7] iommu: Add iova and size as parameters in iotlb_sync_map Yong Wu
2021-01-07 12:29 ` Yong Wu [this message]
2021-01-07 12:29 ` [PATCH v4 4/7] iommu: Switch gather->end to the inclusive end Yong Wu
2021-01-18 18:41 ` Robin Murphy
2021-01-07 12:29 ` [PATCH v4 5/7] iommu/io-pgtable: Allow io_pgtable_tlb ops optional Yong Wu
2021-01-18 18:42 ` Robin Murphy
2021-01-07 12:29 ` [PATCH v4 6/7] iommu/mediatek: Gather iova in iommu_unmap to achieve tlb sync once Yong Wu
2021-01-18 18:44 ` Robin Murphy
2021-01-07 12:29 ` [PATCH v4 7/7] iommu/mediatek: Remove the tlb-ops for v7s Yong Wu
2021-01-18 18:46 ` Robin Murphy
2021-01-22 19:32 ` [PATCH v4 0/7] MediaTek IOMMU improve tlb flush performance in map/unmap Will Deacon
2021-01-27 13:19 ` Will Deacon
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