Re: [PATCH 1/4] perf/x86/amd: AMD support for bp_len > HW_BREAKPOINT_LEN_8

[Suravee Suthikulpanit]

On 05/30/2014 08:33 AM, Frederic Weisbecker wrote:
> > diff --git a/arch/x86/include/asm/debugreg.h b/arch/x86/include/asm/debugreg.h
> > >index 4b528a9..145b009 100644
> > >--- a/arch/x86/include/asm/debugreg.h
> > >+++ b/arch/x86/include/asm/debugreg.h
> > >@@ -114,5 +114,10 @@ static inline void debug_stack_usage_inc(void) { }
> > >  static inline void debug_stack_usage_dec(void) { }
> > >  #endif /* X86_64 */
> > >
> > >+#ifdef CONFIG_CPU_SUP_AMD
> > >+extern void set_dr_addr_mask(unsigned long mask, int dr);
> > >+#else
> > >+static inline void set_dr_addr_mask(unsigned long mask, int dr) { }
> > >+#endif
> I see this symbol in the code but it's not defined anywhere in a Kconfig file.
> Maybe you (or I) forgot to include a file in your patches?
>
> Thanks.

If you are referring to the CONFIG_CPU_SUP_AMD, this is in 
arch/x86/Kconfig.cpu

Suravee
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