From: alim.akhtar@samsung•com (Alim Akhtar)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH] arm64: dts: Add ARM PMU node for exynos7
Date: Fri, 11 Nov 2016 18:31:21 +0530 [thread overview]
Message-ID: <5825C121.6050708@samsung.com> (raw)
In-Reply-To: <4922ada9-2eb2-f0cf-e4b1-a74f4397f97c@arm.com>
Hi Robin,
On 11/10/2016 07:07 PM, Robin Murphy wrote:
> Hi Alim,
>
> On 10/11/16 03:30, 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@samsung•com>
>> ---
>> arch/arm64/boot/dts/exynos/exynos7.dtsi | 8 ++++++++
>> 1 file changed, 8 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/exynos/exynos7.dtsi b/arch/arm64/boot/dts/exynos/exynos7.dtsi
>> index e0d0d01..53ce4be 100644
>> --- a/arch/arm64/boot/dts/exynos/exynos7.dtsi
>> +++ b/arch/arm64/boot/dts/exynos/exynos7.dtsi
>> @@ -472,6 +472,14 @@
>> 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>;
>
> Per Documentation/devicetree/bindings/arm/pmu.txt there should also be
> an "interrupt-affinity" property describing which SPI belongs to which core.
>
Thanks for review, will resend after adding "interrupt-affinity" property.
> Robin.
>
>> + };
>> +
>> timer {
>> compatible = "arm,armv8-timer";
>> interrupts = <GIC_PPI 13
>>
>
>
>
>
prev parent reply other threads:[~2016-11-11 13:01 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-10 3:30 [PATCH] arm64: dts: Add ARM PMU node for exynos7 Alim Akhtar
2016-11-10 13:37 ` Robin Murphy
2016-11-11 13:01 ` Alim Akhtar [this message]
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