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powerpc/perf: Update perf_regs structure to include MMCRA

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On each sample, Monitor Mode Control Register A (MMCRA) content is
saved in pt_regs. MMCRA does not have a entry as-is in the pt_regs but
instead, MMCRA content is saved in the "dsisr" register of pt_regs.

Patch adds another entry to the perf_regs structure to include the
"MMCRA" printing which internally maps to the "dsisr" of pt_regs.

It also check for the MMCRA availability in the platform and present
value accordingly

mpe: This was the 2nd patch in a series with commit 333804dc3b
("powerpc/perf: Update perf_regs structure to include SIER") but I
accidentally only merged the 1st patch, so merge this one now.

Signed-off-by: Madhavan Srinivasan <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
This commit is contained in:
Madhavan Srinivasan 2018-12-09 14:55:36 +05:30 • committed by Michael Ellerman
commit 6529870cb0
5 changed files with 11 additions and 1 deletions
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1
tools/arch/powerpc/include/uapi/asm/perf_regs.h
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@ -47,6 +47,7 @@ enum perf_event_powerpc_regs {
PERF_REG_POWERPC_DAR,
PERF_REG_POWERPC_DSISR,
PERF_REG_POWERPC_SIER,
PERF_REG_POWERPC_MMCRA,
PERF_REG_POWERPC_MAX,
};
#endif /* _UAPI_ASM_POWERPC_PERF_REGS_H */