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SubjectRe: [PATCH v5 07/13] perf/x86/amd: make Zen3 branch sampling opt-in
On Thu, Jan 27, 2022 at 4:51 AM Peter Zijlstra <peterz@infradead.org> wrote:
>
> On Wed, Jan 26, 2022 at 03:34:48PM -0800, Stephane Eranian wrote:
> > This patch adds a kernel config option to make support
> > for AMD Zen3 Branch Sampling (BRS) an opt-in compile
> > time option.
> >
> > Signed-off-by: Stephane Eranian <eranian@google.com>
> > ---
> > arch/x86/events/Kconfig | 8 ++++++
> > arch/x86/events/amd/Makefile | 3 ++-
> > arch/x86/events/perf_event.h | 49 ++++++++++++++++++++++++++++--------
> > 3 files changed, 49 insertions(+), 11 deletions(-)
> >
> > diff --git a/arch/x86/events/Kconfig b/arch/x86/events/Kconfig
> > index d6cdfe631674..1dc002ef66da 100644
> > --- a/arch/x86/events/Kconfig
> > +++ b/arch/x86/events/Kconfig
> > @@ -44,4 +44,12 @@ config PERF_EVENTS_AMD_UNCORE
> >
> > To compile this driver as a module, choose M here: the
> > module will be called 'amd-uncore'.
> > +
> > +config PERF_EVENTS_AMD_BRS
> > + depends on PERF_EVENTS && CPU_SUP_AMD
> > + tristate "AMD Zen3 Branch Sampling support"
>
> tristate ?!

Ok, I will fix that in V6.
Thanks.

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