linux-toradex.git/arch/sh/kernel/perf_event.c, branch v2.6.36 Linux kernel for Apalis and Colibri modules perf: Convert perf_event to local_t 2010-06-09T09:12:37+00:00 Peter Zijlstra a.p.zijlstra@chello.nl 2010-05-21T12:43:08+00:00 e78505958cf123048fb48cb56b79cebb8edd15fb Since now all modification to event->count (and ->prev_count and ->period_left) are local to a cpu, change then to local64_t so we avoid the LOCK'ed ops. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu> 
Since now all modification to event->count (and ->prev_count
and ->period_left) are local to a cpu, change then to local64_t so we
avoid the LOCK'ed ops.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
sh: Tidy up a couple of section mismatches. 2010-03-23T08:06:47+00:00 Paul Mundt lethal@linux-sh.org 2010-03-23T08:06:47+00:00 90851c40769791a6ddeef691c482ecf69bae4a5c select_idle_routine() and register_sh_pmu() both needed their annotations fixed up to silence section mismatch warnings. Signed-off-by: Paul Mundt <lethal@linux-sh.org> 
select_idle_routine() and register_sh_pmu() both needed their annotations
fixed up to silence section mismatch warnings.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
perf: Rework and fix the arch CPU-hotplug hooks 2010-03-10T12:22:24+00:00 Peter Zijlstra a.p.zijlstra@chello.nl 2010-03-05T12:01:18+00:00 3f6da3905398826d85731247e7fbcf53400c18bd Remove the hw_perf_event_*() hotplug hooks in favour of per PMU hotplug notifiers. This has the advantage of reducing the static weak interface as well as exposing all hotplug actions to the PMU. Use this to fix x86 hotplug usage where we did things in ONLINE which should have been done in UP_PREPARE or STARTING. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mundt <lethal@linux-sh.org> Cc: paulus@samba.org Cc: eranian@google.com Cc: robert.richter@amd.com Cc: fweisbec@gmail.com Cc: Arnaldo Carvalho de Melo <acme@infradead.org> LKML-Reference: <20100305154128.736225361@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu> 
Remove the hw_perf_event_*() hotplug hooks in favour of per PMU hotplug
notifiers. This has the advantage of reducing the static weak interface
as well as exposing all hotplug actions to the PMU.

Use this to fix x86 hotplug usage where we did things in ONLINE which
should have been done in UP_PREPARE or STARTING.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: paulus@samba.org
Cc: eranian@google.com
Cc: robert.richter@amd.com
Cc: fweisbec@gmail.com
Cc: Arnaldo Carvalho de Melo <acme@infradead.org>
LKML-Reference: <20100305154128.736225361@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
sh: perf events: Fix up uninitialized variable warning. 2009-11-05T04:56:50+00:00 Paul Mundt lethal@linux-sh.org 2009-11-05T04:56:50+00:00 8820002c18cd3167d2800c002f13d78fa0325402 'config' can be unintialized, and although it's not really an error, it still manages to trigger the -Werror with certain toolchains. Initialize it early to shut up gcc. Signed-off-by: Paul Mundt <lethal@linux-sh.org> 
'config' can be unintialized, and although it's not really an error, it
still manages to trigger the -Werror with certain toolchains. Initialize
it early to shut up gcc.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
sh: perf events: Kill off left over debugging cruft. 2009-10-28T09:02:15+00:00 Paul Mundt lethal@linux-sh.org 2009-10-28T09:02:15+00:00 1d317f90d97ca8e539939ee896bd04c7efe936ca num_events should be compared > MAX_HWEVENTS and not >=. The latter was used as a debugging test which accidentally slipped in. Signed-off-by: Paul Mundt <lethal@linux-sh.org> 
num_events should be compared > MAX_HWEVENTS and not >=. The latter was
used as a debugging test which accidentally slipped in.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
sh: perf events: Add preliminary support for SH-4A counters. 2009-10-28T08:57:54+00:00 Paul Mundt lethal@linux-sh.org 2009-10-28T08:57:54+00:00 ac44e6694755744fe96442919da1f2c7e87a2a61 This adds in preliminary support for the SH-4A performance counters. Presently only the first 2 counters are supported, as these are the ones of the most interest to the perf tool and end users. Counter chaining is not presently handled, so these are simply implemented as 32-bit counters. This also establishes a perf event support framework for other hardware counters, which the existing SH-4 oprofile code will migrate over to as the SH-4A support evolves. Signed-off-by: Paul Mundt <lethal@linux-sh.org> 
This adds in preliminary support for the SH-4A performance counters.
Presently only the first 2 counters are supported, as these are the ones
of the most interest to the perf tool and end users. Counter chaining is
not presently handled, so these are simply implemented as 32-bit
counters.

This also establishes a perf event support framework for other hardware
counters, which the existing SH-4 oprofile code will migrate over to as
the SH-4A support evolves.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>