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kernel/linux-rt-4.4.41/arch/powerpc/perf/hv-common.h 1.4 KB
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  #ifndef LINUX_POWERPC_PERF_HV_COMMON_H_
  #define LINUX_POWERPC_PERF_HV_COMMON_H_
  
  #include <linux/perf_event.h>
  #include <linux/types.h>
  
  struct hv_perf_caps {
  	u16 version;
  	u16 collect_privileged:1,
  	    ga:1,
  	    expanded:1,
  	    lab:1,
  	    unused:12;
  };
  
  unsigned long hv_perf_caps_get(struct hv_perf_caps *caps);
  
  
  #define EVENT_DEFINE_RANGE_FORMAT(name, attr_var, bit_start, bit_end)	\
  PMU_FORMAT_ATTR(name, #attr_var ":" #bit_start "-" #bit_end);		\
  EVENT_DEFINE_RANGE(name, attr_var, bit_start, bit_end)
  
  /*
   * The EVENT_DEFINE_RANGE_FORMAT() macro above includes helper functions
   * for the fields (eg: event_get_starting_index()). For some fields we
   * need the bit-range definition, but no the helper functions. Define a
   * lite version of the above macro without the helpers and silence
   * compiler warnings unused static functions.
   */
  #define EVENT_DEFINE_RANGE_FORMAT_LITE(name, attr_var, bit_start, bit_end) \
  PMU_FORMAT_ATTR(name, #attr_var ":" #bit_start "-" #bit_end);
  
  #define EVENT_DEFINE_RANGE(name, attr_var, bit_start, bit_end)	\
  static u64 event_get_##name##_max(void)					\
  {									\
  	BUILD_BUG_ON((bit_start > bit_end)				\
  		    || (bit_end >= (sizeof(1ull) * 8)));		\
  	return (((1ull << (bit_end - bit_start)) - 1) << 1) + 1;	\
  }									\
  static u64 event_get_##name(struct perf_event *event)			\
  {									\
  	return (event->attr.attr_var >> (bit_start)) &			\
  		event_get_##name##_max();				\
  }
  
  #endif