linux-kernel - Re: [PATCH 2/3] perf/x86/intel: Add Cannon Lake support of RAPL profiling

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Message-ID: <a8bee7c7-8d09-f37a-9d12-b3a8a68a9b37@google.com>
Date:   Mon, 19 Mar 2018 16:05:32 -0700
From:   Benson Leung <bleung@...gle.com>
To:     Harry Pan <harry.pan@...el.com>,
        LKML <linux-kernel@...r.kernel.org>
Cc:     gs0622@...il.com, tglx@...utronix.de, mingo@...hat.com,
        hpa@...or.com, x86@...nel.org, kan.liang@...ux.intel.com,
        vincent.weaver@...ne.edu, peterz@...radead.org,
        colin.king@...onical.com, puthik@...gle.com, bleung@...omium.org,
        Benson Leung <bleung@...gle.com>
Subject: Re: [PATCH 2/3] perf/x86/intel: Add Cannon Lake support of RAPL
 profiling

Hi Harry,

On 03/09/2018 04:15 AM, Harry Pan wrote:
> This patch enables RAPL counters (energy consumption counters)
> support for Cannon Lake processors.
> 
> ESU and power domains refer to Intel Software Developers' Manual,
> Vol. 4, Order No. 335592.
> 
> Usage example:
> 
> $ perf list
> $ perf stat -a -e power/energy-cores/,power/energy-pkg/ sleep 10
> 
> Signed-off-by: Harry Pan <harry.pan@...el.com>

Reviewed-by: Benson Leung <bleung@...omium.org>

> ---
>  arch/x86/events/intel/rapl.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/arch/x86/events/intel/rapl.c b/arch/x86/events/intel/rapl.c
> index a2efb490f743..32f3e9423e99 100644
> --- a/arch/x86/events/intel/rapl.c
> +++ b/arch/x86/events/intel/rapl.c
> @@ -774,6 +774,8 @@ static const struct x86_cpu_id rapl_cpu_match[] __initconst = {
>  	X86_RAPL_MODEL_MATCH(INTEL_FAM6_KABYLAKE_MOBILE,  skl_rapl_init),
>  	X86_RAPL_MODEL_MATCH(INTEL_FAM6_KABYLAKE_DESKTOP, skl_rapl_init),
>  
> +	X86_RAPL_MODEL_MATCH(INTEL_FAM6_CANNONLAKE_MOBILE,  skl_rapl_init),
> +
>  	X86_RAPL_MODEL_MATCH(INTEL_FAM6_ATOM_GOLDMONT, hsw_rapl_init),
>  	X86_RAPL_MODEL_MATCH(INTEL_FAM6_ATOM_DENVERTON, hsw_rapl_init),
>  
> 

Thanks,
-- 
Benson Leung
Staff Software Engineer
Chrome OS Kernel
Google Inc.
bleung@...gle.com
Chromium OS Project
bleung@...omium.org



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