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Message-ID: <1393386516.29388.6.camel@concordia>
Date: Wed, 26 Feb 2014 14:48:36 +1100
From: Michael Ellerman <mpe@...erman.id.au>
To: Cody P Schafer <cody@...ux.vnet.ibm.com>
Cc: Linux PPC <linuxppc-dev@...ts.ozlabs.org>,
"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>,
Anshuman Khandual <khandual@...ux.vnet.ibm.com>,
Anton Blanchard <anton@...ba.org>,
Benjamin Herrenschmidt <benh@...nel.crashing.org>,
Kumar Gala <galak@...nel.crashing.org>,
Lijun Pan <Lijun.Pan@...escale.com>,
Li Yang <leoli@...escale.com>, Paul Bolle <pebolle@...cali.nl>,
Priyanka Jain <Priyanka.Jain@...escale.com>,
Scott Wood <scottwood@...escale.com>,
Tang Yuantian <yuantian.tang@...escale.com>,
LKML <linux-kernel@...r.kernel.org>,
Peter Zijlstra <a.p.zijlstra@...llo.nl>,
Paul Mackerras <paulus@...ba.org>,
Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
Ingo Molnar <mingo@...hat.com>
Subject: Re: [PATCH v2 10/11] powerpc/perf: add kconfig option for
hypervisor provided counters
On Tue, 2014-02-25 at 13:31 -0800, Cody P Schafer wrote:
> On 02/24/2014 07:33 PM, Michael Ellerman wrote:
> > On Fri, 2014-14-02 at 22:02:14 UTC, Cody P Schafer wrote:
> >> Signed-off-by: Cody P Schafer <cody@...ux.vnet.ibm.com>
> >> ---
> >> arch/powerpc/perf/Makefile | 2 ++
> >> arch/powerpc/platforms/Kconfig.cputype | 6 ++++++
> >> 2 files changed, 8 insertions(+)
> >>
> >> diff --git a/arch/powerpc/perf/Makefile b/arch/powerpc/perf/Makefile
> >> index 60d71ee..f9c083a 100644
> >> --- a/arch/powerpc/perf/Makefile
> >> +++ b/arch/powerpc/perf/Makefile
> >> @@ -11,5 +11,7 @@ obj32-$(CONFIG_PPC_PERF_CTRS) += mpc7450-pmu.o
> >> obj-$(CONFIG_FSL_EMB_PERF_EVENT) += core-fsl-emb.o
> >> obj-$(CONFIG_FSL_EMB_PERF_EVENT_E500) += e500-pmu.o e6500-pmu.o
> >>
> >> +obj-$(CONFIG_HV_PERF_CTRS) += hv-24x7.o hv-gpci.o hv-common.o
> >> +
> >> obj-$(CONFIG_PPC64) += $(obj64-y)
> >> obj-$(CONFIG_PPC32) += $(obj32-y)
> >> diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
> >> index 434fda3..dcc67cd 100644
> >> --- a/arch/powerpc/platforms/Kconfig.cputype
> >> +++ b/arch/powerpc/platforms/Kconfig.cputype
> >> @@ -364,6 +364,12 @@ config PPC_PERF_CTRS
> >> help
> >> This enables the powerpc-specific perf_event back-end.
> >>
> >> +config HV_PERF_CTRS
> >> + def_bool y
> >
> > This was bool, why did you change it?
>
> No, it wasn't. v1 also had def_bool. https://lkml.org/lkml/2014/1/16/518
> Maybe you're confusing v2.1 and v2 of this patch?
Er yes. Point releases of a patch series confuse me :)
> >> + depends on PERF_EVENTS && PPC_HAVE_PMU_SUPPORT
> >
> > Should be:
> >
> > depends on PERF_EVENTS && PPC_PSERIES
> >
> >> + help
> >> + Enable access to perf counters provided by the hypervisor
> >> +
>
> Yep, the v2.1 patch (which I bungled and labeled as 9/11) already
> changes both of these.
> It'll end up rolled into v3.
Yes please.
cheers
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