Re: [PATCH V4 0/6] perf, amd: Enable AMD family 15h northbridgecounters

From: Jacob Shin
Date: Fri Dec 14 2012 - 10:46:21 EST


On Mon, Dec 10, 2012 at 12:51:00PM -0600, Jacob Shin wrote:
> On Wed, Dec 05, 2012 at 05:04:12PM -0600, Jacob Shin wrote:
> > The following patchset enables 4 additional performance counters in
> > AMD family 15h processors that count northbridge events -- such as
> > number of DRAM accesses.
> >
> > This patchset is based on previous work done by Robert Richter
> > <rric@xxxxxxxxxx> :
> >
> > https://lkml.org/lkml/2012/6/19/324
> >
> > The main differences are:
> >
> > * The northbridge counters are indexed contiguously right above the
> > core performance counters.
> >
> > * MSR address offset calculations are moved to architecture specific
> > files.
> >
> > * Interrups are set up to be delivered only to a single core.
> >
> > V4:
> > * Moved interrupt core select set up back to event constraints
> > function, sicne during ->hw_config time we do not yet know on which
> > CPU the the event will run on.
> > * Tested on and made minor revisions to make sure that the patchset is
> > compatible with upcoming AMD Family 16h processors, and will support
> > core and NB counters without any further patches.
> >
> > V3:
> > Addressed the following feedback/comments from Robert's review
> > * https://lkml.org/lkml/2012/11/16/484
> > * https://lkml.org/lkml/2012/11/26/162
> >
> > V2:
> > Separate out Robert's patches, and add properly ordered certificate of
> > origins.
> >
> > Jacob Shin (4):
> > perf, amd: Use proper naming scheme for AMD bit field definitions
> > perf, x86: Move MSR address offset calculation to architecture
> > specific files
> > perf, x86: Allow for architecture specific RDPMC indexes
> > perf, amd: Enable northbridge performance counters on AMD family 15h
> >
> > Robert Richter (2):
> > perf, amd: Rework northbridge event constraints handler
> > perf, amd: Generalize northbridge constraints code for family 15h
> >
> > arch/x86/include/asm/cpufeature.h | 2 +
> > arch/x86/include/asm/msr-index.h | 2 +
> > arch/x86/include/asm/perf_event.h | 13 +-
> > arch/x86/kernel/cpu/perf_event.c | 2 +-
> > arch/x86/kernel/cpu/perf_event.h | 25 ++-
> > arch/x86/kernel/cpu/perf_event_amd.c | 318 ++++++++++++++++++++++++++--------
> > 6 files changed, 268 insertions(+), 94 deletions(-)
> >
> > --
>
> Ping .. ? any comments/feedback ? If things look okay, could you
> please commit to tip perf/core ?

Ping #2 .. ?

Thanks!

-Jacob

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