powerpc/perf: Define perf_event_print_debug() to print PMU register values

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Currently the sysrq ShowRegs command does not print any PMU registers as
we have an empty definition for perf_event_print_debug(). This patch
defines perf_event_print_debug() to print various PMU registers.

Example output:

CPU: 0 PMU registers, ppmu = POWER7 n_counters = 6
PMC1:  00000000 PMC2: 00000000 PMC3: 00000000 PMC4: 00000000
PMC5:  00000000 PMC6: 00000000 PMC7: deadbeef PMC8: deadbeef
MMCR0: 0000000080000000 MMCR1: 0000000000000000 MMCRA: 0f00000001000000
SIAR:  0000000000000000 SDAR:  0000000000000000 SIER:  0000000000000000

Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com>
[mpe: Fix 32 bit build and rework formatting for compactness]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

...

This commit is contained in:

Anshuman Khandual 2014-03-14 16:00:27 +11:00 • committed by Benjamin Herrenschmidt

parent 2f0695232c

commit 5f6d0380c6

2 changed files with 52 additions and 4 deletions

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1

arch/powerpc/include/asm/perf_event_server.h

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55

arch/powerpc/perf/core-book3s.c

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