[PATCH V5 0/7] Generalise ARM perf-events backend for oprofile
Robert Richter
robert.richter at amd.com
Mon Oct 11 14:59:23 EDT 2010
On 08.10.10 20:46:15, Matt Fleming wrote:
> The perf-events backend for OProfile that Will Deacon wrote in
> 8c1fc96f6fd1f361428ba805103af0d0eee65179 ("ARM: 6072/1: oprofile: use
> perf-events framework as backend") is of use to more architectures
> than just ARM. Move the code into drivers/oprofile/ so that SH can use
> it instead of the nearly identical copy of its OProfile code.
>
> The benefit of the backend is that it becomes necessary to only
> maintain one copy of the PMU accessor functions for each architecture,
> with bug fixes and new features benefiting both OProfile and perf.
> Matt Fleming (7):
> perf: Add helper function to return number of counters
> perf: New helper function for pmu name
> oprofile: Make op_name_from_perf_id() global
> ARM: oprofile: Rename op_arm to oprofile_perf
> ARM: oprofile: Move non-ARM code into separate init/exit
> oprofile: Abstract the perf-events backend
> sh: oprofile: Use perf-events oprofile backend
>
> arch/arm/kernel/perf_event.c | 6 +
> arch/arm/oprofile/Makefile | 4 +
> arch/arm/oprofile/common.c | 309 +-----------------------------------
> arch/sh/Kconfig | 13 ++
> arch/sh/kernel/perf_event.c | 18 ++
> arch/sh/oprofile/Makefile | 4 +
> arch/sh/oprofile/common.c | 115 +++-----------
> arch/sh/oprofile/op_impl.h | 33 ----
> drivers/oprofile/oprofile_perf.c | 326 ++++++++++++++++++++++++++++++++++++++
> include/linux/oprofile.h | 7 +
> include/linux/perf_event.h | 2 +
> kernel/perf_event.c | 5 +
> 12 files changed, 412 insertions(+), 430 deletions(-)
> delete mode 100644 arch/sh/oprofile/op_impl.h
> create mode 100644 drivers/oprofile/oprofile_perf.c
Thanks Matt, I applied your patches to the oprofile tree and merged
them with the core branch. As I already wrote, I modified patch #4 to
fix the compile breakage.
The patches are available for testing in
git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile.git core
Thanks again,
-Robert
--
Advanced Micro Devices, Inc.
Operating System Research Center
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