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From: Thierry Reding <thierry.reding@gmail.com>
To: Thierry Reding <thierry.reding@gmail.com>,
	Will Deacon <will@kernel.org>,
	Robin Murphy <robin.murphy@arm.com>,
	Joerg Roedel <joro@8bytes.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Cc: iommu@lists.linux-foundation.org,
	Jon Hunter <jonathanh@nvidia.com>,
	Nicolin Chen <nicolinc@nvidia.com>,
	linux-tegra@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 08/10] arm64: tegra: Hook up memory controller to SMMU on Tegra186
Date: Tue, 20 Apr 2021 19:26:17 +0200
Message-ID: <20210420172619.3782831-9-thierry.reding@gmail.com> (raw)
In-Reply-To: <20210420172619.3782831-1-thierry.reding@gmail.com>

From: Thierry Reding <treding@nvidia.com>

On Tegra186 and later, the memory controller needs to be programmed in
coordination with any of the ARM SMMU instances to configure the stream
ID used for each memory client.

To support this, add a phandle reference to the memory controller to the
SMMU device tree node.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 arch/arm64/boot/dts/nvidia/tegra186.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/nvidia/tegra186.dtsi b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
index a173f40256ae..d02f6bf3e2ca 100644
--- a/arch/arm64/boot/dts/nvidia/tegra186.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
@@ -1152,6 +1152,8 @@ smmu: iommu@12000000 {
 		stream-match-mask = <0x7f80>;
 		#global-interrupts = <1>;
 		#iommu-cells = <1>;
+
+		nvidia,memory-controller = <&mc>;
 	};
 
 	host1x@13e00000 {
-- 
2.30.2


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Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-20 17:26 [PATCH v2 00/10] arm64: tegra: Prevent early SMMU faults Thierry Reding
2021-04-20 17:26 ` [PATCH v2 01/10] memory: tegra: Implement SID override programming Thierry Reding
2021-04-26  8:28   ` Krzysztof Kozlowski
2021-04-26 12:13     ` Thierry Reding
2021-04-26 14:10       ` Krzysztof Kozlowski
2021-04-20 17:26 ` [PATCH v2 02/10] dt-bindings: arm-smmu: Add Tegra186 compatible string Thierry Reding
2021-04-20 17:26 ` [PATCH v2 03/10] iommu/arm-smmu: Implement ->probe_finalize() Thierry Reding
2021-04-20 17:26 ` [PATCH v2 04/10] iommu/arm-smmu: tegra: Detect number of instances at runtime Thierry Reding
2021-04-20 22:06   ` Krishna Reddy
2021-04-20 17:26 ` [PATCH v2 05/10] iommu/arm-smmu: tegra: Implement SID override programming Thierry Reding
2021-04-20 17:26 ` [PATCH v2 06/10] iommu/arm-smmu: Use Tegra implementation on Tegra186 Thierry Reding
2021-04-20 17:26 ` [PATCH v2 07/10] arm64: tegra: Use correct compatible string for Tegra186 SMMU Thierry Reding
2021-04-20 17:26 ` Thierry Reding [this message]
2021-04-20 17:26 ` [PATCH v2 09/10] arm64: tegra: Enable SMMU support on Tegra194 Thierry Reding
2021-04-20 17:26 ` [PATCH v2 10/10] arm64: tegra: Enable SMMU support for display " Thierry Reding
2021-05-28 17:05 ` [PATCH v2 00/10] arm64: tegra: Prevent early SMMU faults Thierry Reding
2021-06-01 12:26   ` Will Deacon
2021-06-01 18:08     ` Thierry Reding
2021-06-02  7:33       ` Krzysztof Kozlowski
2021-06-02  7:35         ` Krzysztof Kozlowski
2021-06-02  8:52           ` Thierry Reding
2021-06-02 10:44             ` Krzysztof Kozlowski
2021-06-02 11:40               ` Will Deacon
2021-06-02 14:58                 ` Thierry Reding
2021-06-02 14:58                   ` Krzysztof Kozlowski
2021-06-02 14:53               ` Thierry Reding
2021-06-02 14:57                 ` Krzysztof Kozlowski

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