From: Irui Wang <irui.wang@mediatek.com>
To: Alexandre Courbot <acourbot@chromium.org>,
Hans Verkuil <hverkuil-cisco@xs4all.nl>,
Tiffany Lin <tiffany.lin@mediatek.com>,
Andrew-CT Chen <andrew-ct.chen@mediatek.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Rob Herring <robh+dt@kernel.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
Tomasz Figa <tfiga@google.com>,
Hsin-Yi Wang <hsinyi@chromium.org>,
Maoguang Meng <maoguang.meng@mediatek.com>,
Longfei Wang <longfei.wang@mediatek.com>,
Yunfei Dong <yunfei.dong@mediatek.com>, <yong.wu@mediatek.com>
Cc: Irui Wang <irui.wang@mediatek.com>, <linux-media@vger.kernel.org>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<srv_heupstream@mediatek.com>,
<linux-mediatek@lists.infradead.org>
Subject: [PATCH v2,1/5] dt-bindings: media: mtk-vcodec: Add dma-ranges property
Date: Fri, 12 Mar 2021 15:55:38 +0800 [thread overview]
Message-ID: <20210312075542.5503-2-irui.wang@mediatek.com> (raw)
In-Reply-To: <20210312075542.5503-1-irui.wang@mediatek.com>
The mt8192 iommu support 0~16GB iova. We separate it to four banks:
0~4G; 4G~8G; 8G~12G; 12G~16G.
The "dma-ranges" could be used to adjust the bank we locate.
If we don't set this property. The default range always is 0~4G.
Here we don't have actual bus/parent concept here. And the iova
requirement is for our HW. Thus put the property in our node.
Signed-off-by: Irui Wang <irui.wang@mediatek.com>
---
Documentation/devicetree/bindings/media/mediatek-vcodec.txt | 2 ++
1 file changed, 2 insertions(+)
diff --git a/Documentation/devicetree/bindings/media/mediatek-vcodec.txt b/Documentation/devicetree/bindings/media/mediatek-vcodec.txt
index 8318f0ed492d..d852683d3e6f 100644
--- a/Documentation/devicetree/bindings/media/mediatek-vcodec.txt
+++ b/Documentation/devicetree/bindings/media/mediatek-vcodec.txt
@@ -22,6 +22,8 @@ Required properties:
- iommus : should point to the respective IOMMU block with master port as
argument, see Documentation/devicetree/bindings/iommu/mediatek,iommu.txt
for details.
+- dma-ranges : describes how the physical address space of the IOMMU maps
+ to memory.
One of the two following nodes:
- mediatek,vpu : the node of the video processor unit, if using VPU.
- mediatek,scp : the node of the SCP unit, if using SCP.
--
2.18.0
WARNING: multiple messages have this Message-ID (diff)
From: Irui Wang <irui.wang@mediatek.com>
To: Alexandre Courbot <acourbot@chromium.org>,
Hans Verkuil <hverkuil-cisco@xs4all.nl>,
Tiffany Lin <tiffany.lin@mediatek.com>,
"Andrew-CT Chen" <andrew-ct.chen@mediatek.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Rob Herring <robh+dt@kernel.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
Tomasz Figa <tfiga@google.com>,
Hsin-Yi Wang <hsinyi@chromium.org>,
Maoguang Meng <maoguang.meng@mediatek.com>,
"Longfei Wang" <longfei.wang@mediatek.com>,
Yunfei Dong <yunfei.dong@mediatek.com>, <yong.wu@mediatek.com>
Cc: Irui Wang <irui.wang@mediatek.com>, <linux-media@vger.kernel.org>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<srv_heupstream@mediatek.com>,
<linux-mediatek@lists.infradead.org>
Subject: [PATCH v2, 1/5] dt-bindings: media: mtk-vcodec: Add dma-ranges property
Date: Fri, 12 Mar 2021 15:55:38 +0800 [thread overview]
Message-ID: <20210312075542.5503-2-irui.wang@mediatek.com> (raw)
In-Reply-To: <20210312075542.5503-1-irui.wang@mediatek.com>
The mt8192 iommu support 0~16GB iova. We separate it to four banks:
0~4G; 4G~8G; 8G~12G; 12G~16G.
The "dma-ranges" could be used to adjust the bank we locate.
If we don't set this property. The default range always is 0~4G.
Here we don't have actual bus/parent concept here. And the iova
requirement is for our HW. Thus put the property in our node.
Signed-off-by: Irui Wang <irui.wang@mediatek.com>
---
Documentation/devicetree/bindings/media/mediatek-vcodec.txt | 2 ++
1 file changed, 2 insertions(+)
diff --git a/Documentation/devicetree/bindings/media/mediatek-vcodec.txt b/Documentation/devicetree/bindings/media/mediatek-vcodec.txt
index 8318f0ed492d..d852683d3e6f 100644
--- a/Documentation/devicetree/bindings/media/mediatek-vcodec.txt
+++ b/Documentation/devicetree/bindings/media/mediatek-vcodec.txt
@@ -22,6 +22,8 @@ Required properties:
- iommus : should point to the respective IOMMU block with master port as
argument, see Documentation/devicetree/bindings/iommu/mediatek,iommu.txt
for details.
+- dma-ranges : describes how the physical address space of the IOMMU maps
+ to memory.
One of the two following nodes:
- mediatek,vpu : the node of the video processor unit, if using VPU.
- mediatek,scp : the node of the SCP unit, if using SCP.
--
2.18.0
_______________________________________________
Linux-mediatek mailing list
Linux-mediatek@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-mediatek
WARNING: multiple messages have this Message-ID (diff)
From: Irui Wang <irui.wang@mediatek.com>
To: Alexandre Courbot <acourbot@chromium.org>,
Hans Verkuil <hverkuil-cisco@xs4all.nl>,
Tiffany Lin <tiffany.lin@mediatek.com>,
"Andrew-CT Chen" <andrew-ct.chen@mediatek.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Rob Herring <robh+dt@kernel.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
Tomasz Figa <tfiga@google.com>,
Hsin-Yi Wang <hsinyi@chromium.org>,
Maoguang Meng <maoguang.meng@mediatek.com>,
"Longfei Wang" <longfei.wang@mediatek.com>,
Yunfei Dong <yunfei.dong@mediatek.com>, <yong.wu@mediatek.com>
Cc: Irui Wang <irui.wang@mediatek.com>, <linux-media@vger.kernel.org>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<srv_heupstream@mediatek.com>,
<linux-mediatek@lists.infradead.org>
Subject: [PATCH v2, 1/5] dt-bindings: media: mtk-vcodec: Add dma-ranges property
Date: Fri, 12 Mar 2021 15:55:38 +0800 [thread overview]
Message-ID: <20210312075542.5503-2-irui.wang@mediatek.com> (raw)
In-Reply-To: <20210312075542.5503-1-irui.wang@mediatek.com>
The mt8192 iommu support 0~16GB iova. We separate it to four banks:
0~4G; 4G~8G; 8G~12G; 12G~16G.
The "dma-ranges" could be used to adjust the bank we locate.
If we don't set this property. The default range always is 0~4G.
Here we don't have actual bus/parent concept here. And the iova
requirement is for our HW. Thus put the property in our node.
Signed-off-by: Irui Wang <irui.wang@mediatek.com>
---
Documentation/devicetree/bindings/media/mediatek-vcodec.txt | 2 ++
1 file changed, 2 insertions(+)
diff --git a/Documentation/devicetree/bindings/media/mediatek-vcodec.txt b/Documentation/devicetree/bindings/media/mediatek-vcodec.txt
index 8318f0ed492d..d852683d3e6f 100644
--- a/Documentation/devicetree/bindings/media/mediatek-vcodec.txt
+++ b/Documentation/devicetree/bindings/media/mediatek-vcodec.txt
@@ -22,6 +22,8 @@ Required properties:
- iommus : should point to the respective IOMMU block with master port as
argument, see Documentation/devicetree/bindings/iommu/mediatek,iommu.txt
for details.
+- dma-ranges : describes how the physical address space of the IOMMU maps
+ to memory.
One of the two following nodes:
- mediatek,vpu : the node of the video processor unit, if using VPU.
- mediatek,scp : the node of the SCP unit, if using SCP.
--
2.18.0
_______________________________________________
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:[~2021-03-12 7:57 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-12 7:55 [PATCH v2,0/5] Support H264 4K on MT8192 Irui Wang
2021-03-12 7:55 ` Irui Wang
2021-03-12 7:55 ` Irui Wang
2021-03-12 7:55 ` Irui Wang [this message]
2021-03-12 7:55 ` [PATCH v2, 1/5] dt-bindings: media: mtk-vcodec: Add dma-ranges property Irui Wang
2021-03-12 7:55 ` Irui Wang
2021-03-12 7:55 ` [PATCH v2,2/5] media: mtk-vcodec: Support 4GB~8GB range iova space for venc Irui Wang
2021-03-12 7:55 ` [PATCH v2, 2/5] " Irui Wang
2021-03-12 7:55 ` Irui Wang
2021-03-12 7:55 ` [PATCH v2,3/5] dt-bindings: media: mtk-vcodec: Add binding for MT8192 VENC Irui Wang
2021-03-12 7:55 ` [PATCH v2, 3/5] " Irui Wang
2021-03-12 7:55 ` Irui Wang
2021-03-24 16:00 ` Rob Herring
2021-03-24 16:00 ` Rob Herring
2021-03-24 16:00 ` Rob Herring
2021-03-12 7:55 ` [PATCH v2,4/5] media: mtk-vcodec: Add MT8192 H264 venc driver Irui Wang
2021-03-12 7:55 ` Irui Wang
2021-03-12 7:55 ` Irui Wang
2021-03-12 7:55 ` [PATCH v2,5/5] media: mtk-vcodec: Support H264 4K encoding on MT8192 Irui Wang
2021-03-12 7:55 ` Irui Wang
2021-03-12 7:55 ` Irui Wang
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