Re: [PATCH 1/2] powercap/rapl: add support for skx

From: Jacob Pan
Date: Tue Jun 14 2016 - 10:49:27 EST


On Tue, 14 Jun 2016 02:21:41 +0200
"Rafael J. Wysocki" <rafael@xxxxxxxxxx> wrote:

> On Tue, Jun 14, 2016 at 2:06 AM, Jacob Pan
> <jacob.jun.pan@xxxxxxxxxxxxxxx> wrote:
> > On Mon, 13 Jun 2016 23:56:18 +0200
> > "Rafael J. Wysocki" <rjw@xxxxxxxxxxxxx> wrote:
> >
> >> On Monday, June 13, 2016 11:32:10 PM Rafael J. Wysocki wrote:
> >> > On Monday, May 23, 2016 09:45:42 AM Jacob Pan wrote:
> >> > > SKX RAPL interface is similar to HSX/BDX.
> >> > >
> >> > > Signed-off-by: Jacob Pan <jacob.jun.pan@xxxxxxxxxxxxxxx>
> >> > > ---
> >> > > 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 470bb62..a417e68 100644
> >> > > --- a/drivers/powercap/intel_rapl.c
> >> > > +++ b/drivers/powercap/intel_rapl.c
> >> > > @@ -1096,6 +1096,7 @@ static const struct x86_cpu_id rapl_ids[]
> >> > > __initconst = { RAPL_CPU(0x4E, rapl_defaults_core),/* Skylake
> >> > > */ RAPL_CPU(0x4C, rapl_defaults_cht),/* Braswell/Cherryview
> >> > > */ RAPL_CPU(0x4A, rapl_defaults_tng),/* Tangier */
> >> > > + RAPL_CPU(0x55, rapl_defaults_hsw_server),/* Skylake
> >> > > server */ RAPL_CPU(0x56, rapl_defaults_core),/* Future Xeon */
> >> > > RAPL_CPU(0x5A, rapl_defaults_ann),/* Annidale */
> >> > > RAPL_CPU(0X5C, rapl_defaults_core),/* Broxton */
> >> > >
> >> >
> >> > Can you please rebase this on top of 4.7-rc3?
> >>
> >> Or rather on top of the x86/cpu branch from tip?
> >>
> > done. just sent you v2.
> > [PATCH v2] powercap/rapl: add support for denverton
>
> Thanks for that one, but the $subject one was for SKX. Any chance to
> rebase and resend this one too?

SKX has already been added by commit below in tip/x86/cpu:

commit d40671e30cb46e834651e0ce3d4590c915171414
Author: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
Date: Thu Jun 2 17:19:55 2016 -0700

x86, powercap, rapl: Add Skylake Server model number

SKX uses similar RAPL interface as Broadwell server according to
Jacob Pan.

Signed-off-by: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
Cc: Andy Lutomirski <luto@xxxxxxxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxxxx>
Cc: Brian Gerst <brgerst@xxxxxxxxx>
Cc: Dave Hansen <dave@xxxxxxxx>
Cc: Denys Vlasenko <dvlasenk@xxxxxxxxxx>
Cc: H. Peter Anvin <hpa@xxxxxxxxx>
Cc: Jacob Pan <jacob.jun.pan@xxxxxxxxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Rafael J. Wysocki <rjw@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: jacob.jun.pan@xxxxxxxxx
Cc: linux-pm@xxxxxxxxxxxxxxx
Link: http://lkml.kernel.org/r/20160603001955.38E1E684@xxxxxxxxxxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>

diff --git a/drivers/powercap/intel_rapl.c b/drivers/powercap/intel_rapl.c
index f4f8532..2e8f2be 100644
--- a/drivers/powercap/intel_rapl.c
+++ b/drivers/powercap/intel_rapl.c
@@ -1114,6 +1114,7 @@ static const struct x86_cpu_id rapl_ids[] __initconst = {

RAPL_CPU(INTEL_FAM6_SKYLAKE_DESKTOP, rapl_defaults_core),
RAPL_CPU(INTEL_FAM6_SKYLAKE_MOBILE, rapl_defaults_core),
+ RAPL_CPU(INTEL_FAM6_SKYLAKE_X, rapl_defaults_hsw_server),
RAPL_CPU(INTEL_FAM6_KABYLAKE_MOBILE, rapl_defaults_core),
RAPL_CPU(INTEL_FAM6_KABYLAKE_DESKTOP, rapl_defaults_core),