Re: [PATCH 5/6] perf_counter: powerpc: Add processor back-end for MPC7450 family

From: Paul Mackerras
Date: Thu Jun 18 2009 - 18:43:32 EST


Kumar Gala writes:

> In looking at doing this what suggestions do you have in implementing
> perf_instruction_pointer() if we don't have the equivalent of SIAR.
> Just use regs->nip ?

Yes, exactly. If you don't have SIAR/SDAR/MMCRA, the default
definitions for perf_instruction_pointer and perf_misc_flags in
include/linux/perf_counter.h are fine, and you get them if
perf_misc_flags is not defined.

Paul.
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