linux-kernel - Re: [PATCH v4 0/2] Skylake PSys support

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Message-ID: <CAJZ5v0gtJxLxJpmBqT-ymFV-VtimG1R5ngaiO=+iPnA=7Xhkuw@mail.gmail.com>
Date:	Wed, 20 Apr 2016 22:21:14 +0200
From:	"Rafael J. Wysocki" <rafael@...nel.org>
To:	Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
Cc:	Peter Zijlstra <peterz@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	"the arch/x86 maintainers" <x86@...nel.org>,
	Borislav Petkov <bp@...en8.de>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Jacob Pan <jacob.jun.pan@...ux.intel.com>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>
Subject: Re: [PATCH v4 0/2] Skylake PSys support

On Wed, Apr 20, 2016 at 8:28 PM, Srinivas Pandruvada
<srinivas.pandruvada@...ux.intel.com> wrote:
> On Wed, 2016-04-20 at 15:59 +0200, Peter Zijlstra wrote:
>> On Sun, Apr 17, 2016 at 03:02:59PM -0700, Srinivas Pandruvada wrote:
>> >
>> > Skylake processor supports a new set of RAPL registers for
>> > controlling
>> > entire SoC instead of just CPU package called PSys. This change
>> > adds
>> > support in two sub systems:
>> >
>> > x86/perf: Adds basic support for Skylake RAPL and PSys support
>> >
>> > powercap/rapl: A new platform domain to the current power capping
>> > Intel
>> > RAPL driver.
>> >
>> > Srinivas Pandruvada (2):
>> >   perf/x86/intel/rapl: support Skylake RAPL domains
>> >   powercap: intel_rapl: PSys support
>> >
>> >  arch/x86/events/intel/rapl.c     | 51 +++++++++++++++++++++++++++-
>> > -
>> >  arch/x86/include/asm/msr-index.h |  2 ++
>> >  drivers/powercap/intel_rapl.c    | 69
>> > ++++++++++++++++++++++++++++++++++++++++
>> >  3 files changed, 120 insertions(+), 2 deletions(-)
>> These two patches depend on one another, right?
> Yes.
>> Because the first patch
>> adds the MSR the second patch uses?
>>
>> How should we go about merging this? The perf-rapl stuff normally
>> goes
>> through tip while the powercap stuff goes through Rafael's tree.
> Do you want me to only send PERF patch and wait for this to be merged
> before sending powercap?

You can send both and they both can go in via tip as far as I'm concerned.