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

   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