LXR linux/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
   7struct 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
  16unsigned 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)   \
  20PMU_FORMAT_ATTR(name, #attr_var ":" #bit_start "-" #bit_end);           \
  21EVENT_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) \
  31PMU_FORMAT_ATTR(name, #attr_var ":" #bit_start "-" #bit_end);
  32
  33#define EVENT_DEFINE_RANGE(name, attr_var, bit_start, bit_end)  \
  34static 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}                                                                       \
  40static 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