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8eba18428a
This patch adds support for the uvtrace module by providing a skeleton call to the registered trace function. It also provides another separate 'NMI' tracer that is triggered by the system wide 'power nmi' command. Signed-off-by: Mike Travis <travis@sgi.com> Reviewed-by: Dimitri Sivanich <sivanich@sgi.com> Reviewed-by: Hedi Berriche <hedi@sgi.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Cc: Jason Wessel <jason.wessel@windriver.com> Link: http://lkml.kernel.org/r/20130923212501.185052551@asylum.americas.sgi.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
45 lines
1.5 KiB
C
45 lines
1.5 KiB
C
#ifndef _ASM_X86_UV_UV_H
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#define _ASM_X86_UV_UV_H
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enum uv_system_type {UV_NONE, UV_LEGACY_APIC, UV_X2APIC, UV_NON_UNIQUE_APIC};
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struct cpumask;
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struct mm_struct;
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#ifdef CONFIG_X86_UV
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extern enum uv_system_type get_uv_system_type(void);
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extern int is_uv_system(void);
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extern void uv_cpu_init(void);
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extern void uv_nmi_init(void);
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extern void uv_register_nmi_notifier(void);
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extern void uv_system_init(void);
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extern void (*uv_trace_nmi_func)(unsigned int reason, struct pt_regs *regs);
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extern void (*uv_trace_func)(const char *f, const int l, const char *fmt, ...);
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#define uv_trace(fmt, ...) \
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do { \
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if (unlikely(uv_trace_func)) \
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(uv_trace_func)(__func__, __LINE__, fmt, ##__VA_ARGS__);\
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} while (0)
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extern const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask,
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struct mm_struct *mm,
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unsigned long start,
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unsigned long end,
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unsigned int cpu);
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#else /* X86_UV */
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static inline enum uv_system_type get_uv_system_type(void) { return UV_NONE; }
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static inline int is_uv_system(void) { return 0; }
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static inline void uv_cpu_init(void) { }
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static inline void uv_system_init(void) { }
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static inline void uv_trace(void *fmt, ...) { }
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static inline void uv_register_nmi_notifier(void) { }
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static inline const struct cpumask *
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uv_flush_tlb_others(const struct cpumask *cpumask, struct mm_struct *mm,
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unsigned long start, unsigned long end, unsigned int cpu)
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{ return cpumask; }
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#endif /* X86_UV */
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#endif /* _ASM_X86_UV_UV_H */
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