Messages in this thread | | | Date | Wed, 30 Jun 2021 11:39:53 +0200 | From | Greg KH <> | Subject | Re: [PATCH V3 2/6] perf/x86/intel/uncore: Add alias PMU name |
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On Tue, Jun 29, 2021 at 11:13:59AM -0700, kan.liang@linux.intel.com wrote: > From: Kan Liang <kan.liang@linux.intel.com> > > A perf PMU may have two PMU names. For example, Intel Sapphire Rapids > server supports the discovery mechanism. Without the platform-specific > support, an uncore PMU is named by a type ID plus a box ID, e.g., > uncore_type_0_0, because the real name of the uncore PMU cannot be > retrieved from the discovery table. With the platform-specific support > later, perf has the mapping information from a type ID to a specific > uncore unit. Just like the previous platforms, the uncore PMU is named > by the real PMU name, e.g., uncore_cha_0. The user scripts which work > well with the old numeric name may not work anymore. > > Add a new attribute "alias" to indicate the old numeric name. The > following userspace perf tool patch will handle both names. The user > scripts should work properly with the updated perf tool. > > Signed-off-by: Kan Liang <kan.liang@linux.intel.com> > Cc: gregkh@linuxfoundation.org > --- > arch/x86/events/intel/uncore.c | 19 +++++++++++++------ > arch/x86/events/intel/uncore.h | 1 + > arch/x86/events/intel/uncore_snbep.c | 28 +++++++++++++++++++++++++++- > 3 files changed, 41 insertions(+), 7 deletions(-)
No Documentation/ABI/ update for your new sysfs file?
:(
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