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Linux/arch/powerpc/perf/hv-common.h

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  1 #ifndef LINUX_POWERPC_PERF_HV_COMMON_H_
  2 #define LINUX_POWERPC_PERF_HV_COMMON_H_
  3 
  4 #include <linux/perf_event.h>
  5 #include <linux/types.h>
  6 
  7 struct hv_perf_caps {
  8         u16 version;
  9         u16 collect_privileged:1,
 10             ga:1,
 11             expanded:1,
 12             lab:1,
 13             unused:12;
 14 };
 15 
 16 unsigned long hv_perf_caps_get(struct hv_perf_caps *caps);
 17 
 18 
 19 #define EVENT_DEFINE_RANGE_FORMAT(name, attr_var, bit_start, bit_end)   \
 20 PMU_FORMAT_ATTR(name, #attr_var ":" #bit_start "-" #bit_end);           \
 21 EVENT_DEFINE_RANGE(name, attr_var, bit_start, bit_end)
 22 
 23 /*
 24  * The EVENT_DEFINE_RANGE_FORMAT() macro above includes helper functions
 25  * for the fields (eg: event_get_starting_index()). For some fields we
 26  * need the bit-range definition, but no the helper functions. Define a
 27  * lite version of the above macro without the helpers and silence
 28  * compiler warnings unused static functions.
 29  */
 30 #define EVENT_DEFINE_RANGE_FORMAT_LITE(name, attr_var, bit_start, bit_end) \
 31 PMU_FORMAT_ATTR(name, #attr_var ":" #bit_start "-" #bit_end);
 32 
 33 #define EVENT_DEFINE_RANGE(name, attr_var, bit_start, bit_end)  \
 34 static u64 event_get_##name##_max(void)                                 \
 35 {                                                                       \
 36         BUILD_BUG_ON((bit_start > bit_end)                              \
 37                     || (bit_end >= (sizeof(1ull) * 8)));                \
 38         return (((1ull << (bit_end - bit_start)) - 1) << 1) + 1;        \
 39 }                                                                       \
 40 static u64 event_get_##name(struct perf_event *event)                   \
 41 {                                                                       \
 42         return (event->attr.attr_var >> (bit_start)) &                  \
 43                 event_get_##name##_max();                               \
 44 }
 45 
 46 #endif
 47 

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