Hello Alim,
On 11/12/2016 07:17 AM, Alim Akhtar wrote:
> This patch adds ARM Performance Monitor Unit dt node for exynos7.
> PMU provides various statistics on the operation of the CPU and
> memory system at runtime, which are very useful when debugging or
> profiling code. This enables the same.
>
> Signed-off-by: Alim Akhtar <alim.akhtar@xxxxxxxxxxx>
> ---
> arch/arm64/boot/dts/exynos/exynos7.dtsi | 10 ++++++++++
> 1 file changed, 10 insertions(+)
>
> Changes since v1:
> * Added "interrupt-affinity" property as per Robin Murphy review comment.
>
> diff --git a/arch/arm64/boot/dts/exynos/exynos7.dtsi b/arch/arm64/boot/dts/exynos/exynos7.dtsi
> index 396ffb9..09e7a05b 100644
> --- a/arch/arm64/boot/dts/exynos/exynos7.dtsi
> +++ b/arch/arm64/boot/dts/exynos/exynos7.dtsi
> @@ -472,6 +472,16 @@
> status = "disabled";
> };
>
> + arm-pmu {
> + compatible = "arm,cortex-a57-pmu", "arm,armv8-pmuv3";
> + interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>;
> + interrupt-affinity = <&cpu_atlas0>, <&cpu_atlas1>,
> + <&cpu_atlas2>, <&cpu_atlas3>;
> + };
> +
I didn't double check if these are the correct IRQs because I don't have
an Exynos7 user manual, but the change looks good to me.
Reviewed-by: Javier Martinez Canillas <javier@xxxxxxxxxxxxxxx>
Best regards,
--
Javier Martinez Canillas
Open Source Group
Samsung Research America
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