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  • sysfs-bus-event_source-devices-format
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  • Jiri Olsa's avatar
    perf: Adding sysfs group format attribute for pmu device · 641cc938
    Jiri Olsa authored Mar 15, 2012
    
    
    Adding sysfs group 'format' attribute for pmu device that
    contains a syntax description on how to construct raw events.
    
    The event configuration is described in following
    struct pefr_event_attr attributes:
    
      config
      config1
      config2
    
    Each sysfs attribute within the format attribute group,
    describes mapping of name and bitfield definition within
    one of above attributes.
    
    eg:
      "/sys/...<dev>/format/event" contains "config:0-7"
      "/sys/...<dev>/format/umask" contains "config:8-15"
      "/sys/...<dev>/format/usr"   contains "config:16"
    
    the attribute value syntax is:
    
      line:      config ':' bits
      config:    'config' | 'config1' | 'config2"
      bits:      bits ',' bit_term | bit_term
      bit_term:  VALUE '-' VALUE | VALUE
    
    Adding format attribute definitions for x86 cpu pmus.
    
    Acked-by: default avatarPeter Zijlstra <peterz@infradead.org>
    Signed-off-by: default avatarPeter Zijlstra <peterz@infradead.org>
    Signed-off-by: default avatarJiri Olsa <jolsa@redhat.com>
    Link: http://lkml.kernel.org/n/tip-vhdk5y2hyype9j63prymty36@git.kernel.org
    
    
    Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
    641cc938