[PATCH v3 6/7] iommu/mediatek: Use writel for TLB range invalidation

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From: Yong Wu <yong.wu@mediatek.com>
To: Matthias Brugger <matthias.bgg@gmail.com>,
	Joerg Roedel <joro@8bytes.org>, Will Deacon <will.deacon@arm.com>
Cc: Evan Green <evgreen@chromium.org>,
	Robin Murphy <robin.murphy@arm.com>,
	Tomasz Figa <tfiga@google.com>,
	<linux-mediatek@lists.infradead.org>,
	<srv_heupstream@mediatek.com>, <linux-kernel@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<iommu@lists.linux-foundation.org>, <yong.wu@mediatek.com>,
	<youlin.pei@mediatek.com>,
	Nicolas Boichat <drinkcat@chromium.org>, <anan.sun@mediatek.com>,
	<cui.zhang@mediatek.com>, <chao.hao@mediatek.com>,
	<edison.hsieh@mediatek.com>
Subject: [PATCH v3 6/7] iommu/mediatek: Use writel for TLB range invalidation
Date: Mon, 14 Oct 2019 14:38:20 +0800	[thread overview]
Message-ID: <1571035101-4213-7-git-send-email-yong.wu@mediatek.com> (raw)
In-Reply-To: <1571035101-4213-1-git-send-email-yong.wu@mediatek.com>

Use writel for the register F_MMU_INV_RANGE which is for triggering the
HW work. We expect all the setting(iova_start/iova_end...) have already
been finished before F_MMU_INV_RANGE.

Signed-off-by: Anan.Sun <anan.sun@mediatek.com>
Signed-off-by: Yong Wu <yong.wu@mediatek.com>
---
 drivers/iommu/mtk_iommu.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index dbbacc3..d285457 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -187,8 +187,7 @@ static void mtk_iommu_tlb_flush_range_sync(unsigned long iova, size_t size,
 		writel_relaxed(iova, data->base + REG_MMU_INVLD_START_A);
 		writel_relaxed(iova + size - 1,
 			       data->base + REG_MMU_INVLD_END_A);
-		writel_relaxed(F_MMU_INV_RANGE,
-			       data->base + REG_MMU_INVALIDATE);
+		writel(F_MMU_INV_RANGE, data->base + REG_MMU_INVALIDATE);
 
 		/* tlb sync */
 		ret = readl_poll_timeout_atomic(data->base + REG_MMU_CPE_DONE,
-- 
1.9.1

WARNING: multiple messages have this Message-ID (diff)

From: Yong Wu <yong.wu@mediatek.com>
To: Matthias Brugger <matthias.bgg@gmail.com>,
	Joerg Roedel <joro@8bytes.org>,
	 Will Deacon <will.deacon@arm.com>
Cc: youlin.pei@mediatek.com, anan.sun@mediatek.com,
	Nicolas Boichat <drinkcat@chromium.org>,
	cui.zhang@mediatek.com, srv_heupstream@mediatek.com,
	chao.hao@mediatek.com, edison.hsieh@mediatek.com,
	linux-kernel@vger.kernel.org, Evan Green <evgreen@chromium.org>,
	Tomasz Figa <tfiga@google.com>,
	iommu@lists.linux-foundation.org,
	linux-mediatek@lists.infradead.org,
	Robin Murphy <robin.murphy@arm.com>,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 6/7] iommu/mediatek: Use writel for TLB range invalidation
Date: Mon, 14 Oct 2019 14:38:20 +0800	[thread overview]
Message-ID: <1571035101-4213-7-git-send-email-yong.wu@mediatek.com> (raw)
In-Reply-To: <1571035101-4213-1-git-send-email-yong.wu@mediatek.com>

Use writel for the register F_MMU_INV_RANGE which is for triggering the
HW work. We expect all the setting(iova_start/iova_end...) have already
been finished before F_MMU_INV_RANGE.

Signed-off-by: Anan.Sun <anan.sun@mediatek.com>
Signed-off-by: Yong Wu <yong.wu@mediatek.com>
---
 drivers/iommu/mtk_iommu.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index dbbacc3..d285457 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -187,8 +187,7 @@ static void mtk_iommu_tlb_flush_range_sync(unsigned long iova, size_t size,
 		writel_relaxed(iova, data->base + REG_MMU_INVLD_START_A);
 		writel_relaxed(iova + size - 1,
 			       data->base + REG_MMU_INVLD_END_A);
-		writel_relaxed(F_MMU_INV_RANGE,
-			       data->base + REG_MMU_INVALIDATE);
+		writel(F_MMU_INV_RANGE, data->base + REG_MMU_INVALIDATE);
 
 		/* tlb sync */
 		ret = readl_poll_timeout_atomic(data->base + REG_MMU_CPE_DONE,
-- 
1.9.1

_______________________________________________
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu

WARNING: multiple messages have this Message-ID (diff)

From: Yong Wu <yong.wu@mediatek.com>
To: Matthias Brugger <matthias.bgg@gmail.com>,
	Joerg Roedel <joro@8bytes.org>, Will Deacon <will.deacon@arm.com>
Cc: Evan Green <evgreen@chromium.org>,
	Robin Murphy <robin.murphy@arm.com>,
	Tomasz Figa <tfiga@google.com>,
	linux-mediatek@lists.infradead.org, srv_heupstream@mediatek.com,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	iommu@lists.linux-foundation.org, yong.wu@mediatek.com,
	youlin.pei@mediatek.com, Nicolas Boichat <drinkcat@chromium.org>,
	anan.sun@mediatek.com, cui.zhang@mediatek.com,
	chao.hao@mediatek.com, edison.hsieh@mediatek.com
Subject: [PATCH v3 6/7] iommu/mediatek: Use writel for TLB range invalidation
Date: Mon, 14 Oct 2019 14:38:20 +0800	[thread overview]
Message-ID: <1571035101-4213-7-git-send-email-yong.wu@mediatek.com> (raw)
In-Reply-To: <1571035101-4213-1-git-send-email-yong.wu@mediatek.com>

Use writel for the register F_MMU_INV_RANGE which is for triggering the
HW work. We expect all the setting(iova_start/iova_end...) have already
been finished before F_MMU_INV_RANGE.

Signed-off-by: Anan.Sun <anan.sun@mediatek.com>
Signed-off-by: Yong Wu <yong.wu@mediatek.com>
---
 drivers/iommu/mtk_iommu.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index dbbacc3..d285457 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -187,8 +187,7 @@ static void mtk_iommu_tlb_flush_range_sync(unsigned long iova, size_t size,
 		writel_relaxed(iova, data->base + REG_MMU_INVLD_START_A);
 		writel_relaxed(iova + size - 1,
 			       data->base + REG_MMU_INVLD_END_A);
-		writel_relaxed(F_MMU_INV_RANGE,
-			       data->base + REG_MMU_INVALIDATE);
+		writel(F_MMU_INV_RANGE, data->base + REG_MMU_INVALIDATE);
 
 		/* tlb sync */
 		ret = readl_poll_timeout_atomic(data->base + REG_MMU_CPE_DONE,
-- 
1.9.1

WARNING: multiple messages have this Message-ID (diff)

From: Yong Wu <yong.wu@mediatek.com>
To: Matthias Brugger <matthias.bgg@gmail.com>,
	Joerg Roedel <joro@8bytes.org>,
	 Will Deacon <will.deacon@arm.com>
Cc: youlin.pei@mediatek.com, anan.sun@mediatek.com,
	Nicolas Boichat <drinkcat@chromium.org>,
	cui.zhang@mediatek.com, srv_heupstream@mediatek.com,
	chao.hao@mediatek.com, edison.hsieh@mediatek.com,
	linux-kernel@vger.kernel.org, Evan Green <evgreen@chromium.org>,
	Tomasz Figa <tfiga@google.com>,
	iommu@lists.linux-foundation.org,
	linux-mediatek@lists.infradead.org, yong.wu@mediatek.com,
	Robin Murphy <robin.murphy@arm.com>,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 6/7] iommu/mediatek: Use writel for TLB range invalidation
Date: Mon, 14 Oct 2019 14:38:20 +0800	[thread overview]
Message-ID: <1571035101-4213-7-git-send-email-yong.wu@mediatek.com> (raw)
In-Reply-To: <1571035101-4213-1-git-send-email-yong.wu@mediatek.com>

Use writel for the register F_MMU_INV_RANGE which is for triggering the
HW work. We expect all the setting(iova_start/iova_end...) have already
been finished before F_MMU_INV_RANGE.

Signed-off-by: Anan.Sun <anan.sun@mediatek.com>
Signed-off-by: Yong Wu <yong.wu@mediatek.com>
---
 drivers/iommu/mtk_iommu.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index dbbacc3..d285457 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -187,8 +187,7 @@ static void mtk_iommu_tlb_flush_range_sync(unsigned long iova, size_t size,
 		writel_relaxed(iova, data->base + REG_MMU_INVLD_START_A);
 		writel_relaxed(iova + size - 1,
 			       data->base + REG_MMU_INVLD_END_A);
-		writel_relaxed(F_MMU_INV_RANGE,
-			       data->base + REG_MMU_INVALIDATE);
+		writel(F_MMU_INV_RANGE, data->base + REG_MMU_INVALIDATE);
 
 		/* tlb sync */
 		ret = readl_poll_timeout_atomic(data->base + REG_MMU_CPE_DONE,
-- 
1.9.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

next prev parent reply	other threads:[~2019-10-14  6:39 UTC|newest]

Thread overview: 62+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-14  6:38 [PATCH v3 0/7] Improve tlb range flush Yong Wu
2019-10-14  6:38 ` Yong Wu
2019-10-14  6:38 ` Yong Wu
2019-10-14  6:38 ` Yong Wu
2019-10-14  6:38 ` [PATCH v3 1/7] iommu/mediatek: Correct the flush_iotlb_all callback Yong Wu
2019-10-14  6:38   ` Yong Wu
2019-10-14  6:38   ` Yong Wu
2019-10-14  6:38   ` Yong Wu
2019-10-14 14:06   ` Robin Murphy
2019-10-14 14:06     ` Robin Murphy
2019-10-14 14:06     ` Robin Murphy
2019-10-14  6:38 ` [PATCH v3 2/7] iommu/mediatek: Add pgtlock in the iotlb_sync Yong Wu
2019-10-14  6:38   ` Yong Wu
2019-10-14  6:38   ` Yong Wu
2019-10-14  6:38   ` Yong Wu
2019-10-14  6:38 ` [PATCH v3 3/7] iommu/mediatek: Use gather to achieve the tlb range flush Yong Wu
2019-10-14  6:38   ` Yong Wu
2019-10-14  6:38   ` Yong Wu
2019-10-14  6:38   ` Yong Wu
2019-10-14 14:21   ` Robin Murphy
2019-10-14 14:21     ` Robin Murphy
2019-10-14 14:21     ` Robin Murphy
2019-10-15  5:26     ` Yong Wu
2019-10-15  5:26       ` Yong Wu
2019-10-15  5:26       ` Yong Wu
2019-10-15  5:26       ` Yong Wu
2019-10-15 11:38       ` Robin Murphy
2019-10-15 11:38         ` Robin Murphy
2019-10-15 11:38         ` Robin Murphy
2019-10-14  6:38 ` [PATCH v3 4/7] iommu/mediatek: Delete the leaf in the tlb flush Yong Wu
2019-10-14  6:38   ` Yong Wu
2019-10-14  6:38   ` Yong Wu
2019-10-14  6:38   ` Yong Wu
2019-10-14 14:22   ` Robin Murphy
2019-10-14 14:22     ` Robin Murphy
2019-10-14 14:22     ` Robin Murphy
2019-10-15  5:25     ` Yong Wu
2019-10-15  5:25       ` Yong Wu
2019-10-15  5:25       ` Yong Wu
2019-10-15  5:25       ` Yong Wu
2019-10-15 11:24       ` Robin Murphy
2019-10-15 11:24         ` Robin Murphy
2019-10-15 11:24         ` Robin Murphy
2019-10-14  6:38 ` [PATCH v3 5/7] iommu/mediatek: Move the tlb_sync into tlb_flush Yong Wu
2019-10-14  6:38   ` Yong Wu
2019-10-14  6:38   ` Yong Wu
2019-10-14  6:38   ` Yong Wu
2019-10-14  6:38 ` Yong Wu [this message]
2019-10-14  6:38   ` [PATCH v3 6/7] iommu/mediatek: Use writel for TLB range invalidation Yong Wu
2019-10-14  6:38   ` Yong Wu
2019-10-14  6:38   ` Yong Wu
2019-10-14 14:04   ` Robin Murphy
2019-10-14 14:04     ` Robin Murphy
2019-10-14 14:04     ` Robin Murphy
2019-10-15  5:25     ` Yong Wu
2019-10-15  5:25       ` Yong Wu
2019-10-15  5:25       ` Yong Wu
2019-10-15  5:25       ` Yong Wu
2019-10-14  6:38 ` [PATCH v3 7/7] iommu/mediatek: Reduce the tlb flush timeout value Yong Wu
2019-10-14  6:38   ` Yong Wu
2019-10-14  6:38   ` Yong Wu
2019-10-14  6:38   ` Yong Wu

find likely ancestor, descendant, or conflicting patches for this message:
dfblob:dbbacc3 dfblob:dbbacc3 dfblob:dbbacc3 dfblob:dbbacc3
dfblob:d285457 dfblob:d285457 dfblob:d285457 dfblob:d285457
	(help)

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