* [PATCH] arm64: tegra: Enable audio IOMMU support on Tegra194
@ 2021-07-09 12:08 Thierry Reding
2021-07-09 12:08 ` Jon Hunter
0 siblings, 1 reply; 4+ messages in thread
From: Thierry Reding @ 2021-07-09 12:08 UTC (permalink / raw)
To: Thierry Reding; +Cc: Jon Hunter, linux-tegra, linux-arm-kernel
From: Thierry Reding <treding@nvidia.com>
Add iommus and interconnects properties to the sound device tree node on
Tegra194. This ensures that the correct SID is used for translation of
physical to I/O virtual addresses and that the path to system memory is
properly described, which in turn can impact the range of memory that
the device can address.
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
arch/arm64/boot/dts/nvidia/tegra194.dtsi | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/arm64/boot/dts/nvidia/tegra194.dtsi b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
index a6e61d899a27..076d5efc4c3d 100644
--- a/arch/arm64/boot/dts/nvidia/tegra194.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
@@ -2477,6 +2477,11 @@ sound {
* for 8x and 11.025x sample rate streams.
*/
assigned-clock-rates = <258000000>;
+
+ interconnects = <&mc TEGRA194_MEMORY_CLIENT_APEDMAR &emc>,
+ <&mc TEGRA194_MEMORY_CLIENT_APEDMAW &emc>;
+ interconnect-names = "dma-mem", "write";
+ iommus = <&smmu TEGRA194_SID_APE>;
};
tcu: tcu {
--
2.32.0
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^ permalink raw reply related [flat|nested] 4+ messages in thread* Re: [PATCH] arm64: tegra: Enable audio IOMMU support on Tegra194
2021-07-09 12:08 [PATCH] arm64: tegra: Enable audio IOMMU support on Tegra194 Thierry Reding
@ 2021-07-09 12:08 ` Jon Hunter
0 siblings, 0 replies; 4+ messages in thread
From: Jon Hunter @ 2021-07-09 12:08 UTC (permalink / raw)
To: Thierry Reding; +Cc: linux-tegra, linux-arm-kernel
On 09/07/2021 13:08, Thierry Reding wrote:
> From: Thierry Reding <treding@nvidia.com>
>
> Add iommus and interconnects properties to the sound device tree node on
> Tegra194. This ensures that the correct SID is used for translation of
> physical to I/O virtual addresses and that the path to system memory is
> properly described, which in turn can impact the range of memory that
> the device can address.
>
> Signed-off-by: Thierry Reding <treding@nvidia.com>
> ---
> arch/arm64/boot/dts/nvidia/tegra194.dtsi | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/nvidia/tegra194.dtsi b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
> index a6e61d899a27..076d5efc4c3d 100644
> --- a/arch/arm64/boot/dts/nvidia/tegra194.dtsi
> +++ b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
> @@ -2477,6 +2477,11 @@ sound {
> * for 8x and 11.025x sample rate streams.
> */
> assigned-clock-rates = <258000000>;
> +
> + interconnects = <&mc TEGRA194_MEMORY_CLIENT_APEDMAR &emc>,
> + <&mc TEGRA194_MEMORY_CLIENT_APEDMAW &emc>;
> + interconnect-names = "dma-mem", "write";
> + iommus = <&smmu TEGRA194_SID_APE>;
> };
>
> tcu: tcu {
>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Thanks!
Jon
--
nvpublic
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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH] arm64: tegra: Enable audio IOMMU support on Tegra194
@ 2021-07-09 12:11 Thierry Reding
2021-07-09 12:11 ` Jon Hunter
0 siblings, 1 reply; 4+ messages in thread
From: Thierry Reding @ 2021-07-09 12:11 UTC (permalink / raw)
To: Thierry Reding; +Cc: Jon Hunter, linux-tegra, linux-arm-kernel
From: Thierry Reding <treding@nvidia.com>
Add iommus and interconnects properties to the sound device tree node on
Tegra194. This ensures that the correct SID is used for translation of
physical to I/O virtual addresses and that the path to system memory is
properly described, which in turn can impact the range of memory that
the device can address.
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
arch/arm64/boot/dts/nvidia/tegra194.dtsi | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/arm64/boot/dts/nvidia/tegra194.dtsi b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
index a6e61d899a27..076d5efc4c3d 100644
--- a/arch/arm64/boot/dts/nvidia/tegra194.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
@@ -2477,6 +2477,11 @@ sound {
* for 8x and 11.025x sample rate streams.
*/
assigned-clock-rates = <258000000>;
+
+ interconnects = <&mc TEGRA194_MEMORY_CLIENT_APEDMAR &emc>,
+ <&mc TEGRA194_MEMORY_CLIENT_APEDMAW &emc>;
+ interconnect-names = "dma-mem", "write";
+ iommus = <&smmu TEGRA194_SID_APE>;
};
tcu: tcu {
--
2.32.0
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 4+ messages in thread* Re: [PATCH] arm64: tegra: Enable audio IOMMU support on Tegra194
2021-07-09 12:11 Thierry Reding
@ 2021-07-09 12:11 ` Jon Hunter
0 siblings, 0 replies; 4+ messages in thread
From: Jon Hunter @ 2021-07-09 12:11 UTC (permalink / raw)
To: Thierry Reding; +Cc: linux-tegra, linux-arm-kernel
On 09/07/2021 13:11, Thierry Reding wrote:
> From: Thierry Reding <treding@nvidia.com>
>
> Add iommus and interconnects properties to the sound device tree node on
> Tegra194. This ensures that the correct SID is used for translation of
> physical to I/O virtual addresses and that the path to system memory is
> properly described, which in turn can impact the range of memory that
> the device can address.
>
> Signed-off-by: Thierry Reding <treding@nvidia.com>
> ---
> arch/arm64/boot/dts/nvidia/tegra194.dtsi | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/nvidia/tegra194.dtsi b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
> index a6e61d899a27..076d5efc4c3d 100644
> --- a/arch/arm64/boot/dts/nvidia/tegra194.dtsi
> +++ b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
> @@ -2477,6 +2477,11 @@ sound {
> * for 8x and 11.025x sample rate streams.
> */
> assigned-clock-rates = <258000000>;
> +
> + interconnects = <&mc TEGRA194_MEMORY_CLIENT_APEDMAR &emc>,
> + <&mc TEGRA194_MEMORY_CLIENT_APEDMAW &emc>;
> + interconnect-names = "dma-mem", "write";
> + iommus = <&smmu TEGRA194_SID_APE>;
> };
>
> tcu: tcu {
>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Thanks!
Jon
--
nvpublic
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2021-07-09 12:12 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2021-07-09 12:08 [PATCH] arm64: tegra: Enable audio IOMMU support on Tegra194 Thierry Reding
2021-07-09 12:08 ` Jon Hunter
2021-07-09 12:11 Thierry Reding
2021-07-09 12:11 ` Jon Hunter
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