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    SubjectRe: [PATCH v2 10/11] powerpc/perf: add kconfig option for hypervisor provided counters
    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@linux.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?

    >
    >> + 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.



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