linux-kernel - Re: [PATCH 2/2] powercap/rapl: Add Ice Lake NNPI support to RAPL driver

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Date:   Fri, 05 Jul 2019 12:13:41 +0200
From:   "Rafael J. Wysocki" <rjw@...ysocki.net>
To:     "Bhardwaj, Rajneesh" <rajneesh.bhardwaj@...ux.intel.com>
Cc:     linux-kernel@...r.kernel.org, len.brown@...el.com,
        rafael.j.wysocki@...el.com, linux-pm@...r.kernel.org
Subject: Re: [PATCH 2/2] powercap/rapl: Add Ice Lake NNPI support to RAPL driver

On Friday, June 28, 2019 10:21:41 AM CEST Bhardwaj, Rajneesh wrote:
> 
> On 28-Jun-19 3:32 AM, Rafael J. Wysocki wrote:
> > On Friday, June 14, 2019 10:05:23 AM CEST Rajneesh Bhardwaj wrote:
> >> Enables support for ICL-NNPI, which is a neural network processor for deep
> >> learning inference. From RAPL point of view it is same as Ice Lake Mobile
> >> processor.
> >>
> >> Cc: "Rafael J. Wysocki" <rjw@...ysocki.net>
> >> Cc: linux-pm@...r.kernel.org
> >> Link: https://lkml.org/lkml/2019/6/5/1034
> >> Signed-off-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@...ux.intel.com>
> >> ---
> >>   drivers/powercap/intel_rapl.c | 1 +
> >>   1 file changed, 1 insertion(+)
> >>
> >> diff --git a/drivers/powercap/intel_rapl.c b/drivers/powercap/intel_rapl.c
> >> index 4347f15165f8..431c8c8bdf07 100644
> >> --- a/drivers/powercap/intel_rapl.c
> >> +++ b/drivers/powercap/intel_rapl.c
> >> @@ -1157,6 +1157,7 @@ static const struct x86_cpu_id rapl_ids[] __initconst = {
> >>   	INTEL_CPU_FAM6(KABYLAKE_DESKTOP,	rapl_defaults_core),
> >>   	INTEL_CPU_FAM6(CANNONLAKE_MOBILE,	rapl_defaults_core),
> >>   	INTEL_CPU_FAM6(ICELAKE_MOBILE,		rapl_defaults_core),
> >> +	INTEL_CPU_FAM6(ICELAKE_NNPI,		rapl_defaults_core),
> >>   
> >>   	INTEL_CPU_FAM6(ATOM_SILVERMONT,		rapl_defaults_byt),
> >>   	INTEL_CPU_FAM6(ATOM_AIRMONT,		rapl_defaults_cht),
> >>
> > It is in my queue, but I get build errors when I try to apply it.
> >
> > I guess the definition of ICELAKE_NNPI is not there in the Linus' tree yet.
> 
> Yes, though 
> https://www.spinics.net/lists/linux-tip-commits/msg48978.html is 
> accepted by Thomas already.

It is not in 5.2-rc7, though, AFAICS.

The patch is still in my queue and waiting.