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From: Alexandre Bailon <abailon@baylibre.com>
To: yong.wu@mediatek.com, joro@8bytes.org, will@kernel.org
Cc: robin.murphy@arm.com, matthias.bgg@gmail.com,
	krzysztof.kozlowski@linaro.org, robh+dt@kernel.org,
	iommu@lists.linux.dev, linux-mediatek@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
	Alexandre Bailon <abailon@baylibre.com>
Subject: [PATCH 1/3] dt-bindings: memory: mediatek: Add support of unmanaged iommu domain
Date: Mon, 30 Jan 2023 11:27:20 +0100	[thread overview]
Message-ID: <20230130102722.133271-2-abailon@baylibre.com> (raw)
In-Reply-To: <20230130102722.133271-1-abailon@baylibre.com>

Currently, the only way to have an unmanaged domain for a device
is having a dedicated iova region or bank.
This adds a new bit to MTK_M4U_ID that allows defining devices
that needs unmanaged iommu domain.

Signed-off-by: Alexandre Bailon <abailon@baylibre.com>
---
 include/dt-bindings/memory/mtk-memory-port.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/dt-bindings/memory/mtk-memory-port.h b/include/dt-bindings/memory/mtk-memory-port.h
index 2f68a0511a257..86896c776691a 100644
--- a/include/dt-bindings/memory/mtk-memory-port.h
+++ b/include/dt-bindings/memory/mtk-memory-port.h
@@ -7,11 +7,14 @@
 #define __DT_BINDINGS_MEMORY_MTK_MEMORY_PORT_H_
 
 #define MTK_LARB_NR_MAX			32
+#define MTK_UNMANAGED_DEVICE            (1 << 31)
 
 #define MTK_M4U_ID(larb, port)		(((larb) << 5) | (port))
 #define MTK_M4U_TO_LARB(id)		(((id) >> 5) & 0x1f)
 #define MTK_M4U_TO_PORT(id)		((id) & 0x1f)
+#define MTK_M4U_UNMANAGED(id)		((id) & MTK_UNMANAGED_DEVICE)
 
 #define MTK_IFAIOMMU_PERI_ID(port)	MTK_M4U_ID(0, port)
+#define MTK_M4U_UNMANAGED_ID(larb, port) (MTK_M4U_ID(larb, port) | MTK_UNMANAGED_DEVICE)
 
 #endif
-- 
2.38.2


WARNING: multiple messages have this Message-ID (diff)
From: Alexandre Bailon <abailon@baylibre.com>
To: yong.wu@mediatek.com, joro@8bytes.org, will@kernel.org
Cc: robin.murphy@arm.com, matthias.bgg@gmail.com,
	krzysztof.kozlowski@linaro.org, robh+dt@kernel.org,
	iommu@lists.linux.dev, linux-mediatek@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
	Alexandre Bailon <abailon@baylibre.com>
Subject: [PATCH 1/3] dt-bindings: memory: mediatek: Add support of unmanaged iommu domain
Date: Mon, 30 Jan 2023 11:27:20 +0100	[thread overview]
Message-ID: <20230130102722.133271-2-abailon@baylibre.com> (raw)
In-Reply-To: <20230130102722.133271-1-abailon@baylibre.com>

Currently, the only way to have an unmanaged domain for a device
is having a dedicated iova region or bank.
This adds a new bit to MTK_M4U_ID that allows defining devices
that needs unmanaged iommu domain.

Signed-off-by: Alexandre Bailon <abailon@baylibre.com>
---
 include/dt-bindings/memory/mtk-memory-port.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/dt-bindings/memory/mtk-memory-port.h b/include/dt-bindings/memory/mtk-memory-port.h
index 2f68a0511a257..86896c776691a 100644
--- a/include/dt-bindings/memory/mtk-memory-port.h
+++ b/include/dt-bindings/memory/mtk-memory-port.h
@@ -7,11 +7,14 @@
 #define __DT_BINDINGS_MEMORY_MTK_MEMORY_PORT_H_
 
 #define MTK_LARB_NR_MAX			32
+#define MTK_UNMANAGED_DEVICE            (1 << 31)
 
 #define MTK_M4U_ID(larb, port)		(((larb) << 5) | (port))
 #define MTK_M4U_TO_LARB(id)		(((id) >> 5) & 0x1f)
 #define MTK_M4U_TO_PORT(id)		((id) & 0x1f)
+#define MTK_M4U_UNMANAGED(id)		((id) & MTK_UNMANAGED_DEVICE)
 
 #define MTK_IFAIOMMU_PERI_ID(port)	MTK_M4U_ID(0, port)
+#define MTK_M4U_UNMANAGED_ID(larb, port) (MTK_M4U_ID(larb, port) | MTK_UNMANAGED_DEVICE)
 
 #endif
-- 
2.38.2


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  reply	other threads:[~2023-01-30 10:26 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-30 10:27 [PATCH 0/3] Add support of unmanaged domain to mediatek IOMMU Alexandre Bailon
2023-01-30 10:27 ` Alexandre Bailon
2023-01-30 10:27 ` Alexandre Bailon [this message]
2023-01-30 10:27   ` [PATCH 1/3] dt-bindings: memory: mediatek: Add support of unmanaged iommu domain Alexandre Bailon
2023-01-30 11:57   ` Alexandre Mergnat
2023-01-30 11:57     ` Alexandre Mergnat
2023-01-30 11:58   ` Robin Murphy
2023-01-30 11:58     ` Robin Murphy
2023-01-30 10:27 ` [PATCH 2/3] iommu: " Alexandre Bailon
2023-01-30 10:27   ` Alexandre Bailon
2023-01-30 12:04   ` Alexandre Mergnat
2023-01-30 12:04     ` Alexandre Mergnat
2023-01-30 12:04   ` Robin Murphy
2023-01-30 12:04     ` Robin Murphy
2023-01-31 13:08     ` Alexandre Bailon
2023-01-31 13:08       ` Alexandre Bailon
2023-01-31 14:15       ` Robin Murphy
2023-01-31 14:15         ` Robin Murphy
2023-01-31 15:31         ` Alexandre Bailon
2023-01-31 15:31           ` Alexandre Bailon
2023-02-14  5:48           ` Yong Wu (吴勇)
2023-02-14  5:48             ` Yong Wu (吴勇)
2023-09-14  8:07             ` Alexandre Bailon
2023-09-14  8:07               ` Alexandre Bailon
2023-09-14 14:19               ` Robin Murphy
2023-09-14 14:19                 ` Robin Murphy
2023-01-30 10:27 ` [PATCH 3/3] dt-bindings: iommu: memory: Use unmanaged iommu domain for the APU Alexandre Bailon
2023-01-30 10:27   ` Alexandre Bailon
2023-01-30 12:04   ` Alexandre Mergnat
2023-01-30 12:04     ` Alexandre Mergnat
2023-01-30 22:50   ` Rob Herring
2023-01-30 22:50     ` Rob Herring

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