LXR linux/arch/powerpc/perf/hv-common.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef LINUX_POWERPC_PERF_HV_COMMON_H_
   3#define LINUX_POWERPC_PERF_HV_COMMON_H_
   4
   5#include <linux/perf_event.h>
   6#include <linux/types.h>
   7
   8struct hv_perf_caps {
   9        u16 version;
  10        u16 collect_privileged:1,
  11            ga:1,
  12            expanded:1,
  13            lab:1,
  14            unused:12;
  15};
  16
  17unsigned long hv_perf_caps_get(struct hv_perf_caps *caps);
  18
  19
  20#define EVENT_DEFINE_RANGE_FORMAT(name, attr_var, bit_start, bit_end)   \
  21PMU_FORMAT_ATTR(name, #attr_var ":" #bit_start "-" #bit_end);           \
  22EVENT_DEFINE_RANGE(name, attr_var, bit_start, bit_end)
  23
  24/*
  25 * The EVENT_DEFINE_RANGE_FORMAT() macro above includes helper functions
  26 * for the fields (eg: event_get_starting_index()). For some fields we
  27 * need the bit-range definition, but no the helper functions. Define a
  28 * lite version of the above macro without the helpers and silence
  29 * compiler warnings unused static functions.
  30 */
  31#define EVENT_DEFINE_RANGE_FORMAT_LITE(name, attr_var, bit_start, bit_end) \
  32PMU_FORMAT_ATTR(name, #attr_var ":" #bit_start "-" #bit_end);
  33
  34#define EVENT_DEFINE_RANGE(name, attr_var, bit_start, bit_end)  \
  35static u64 event_get_##name##_max(void)                                 \
  36{                                                                       \
  37        BUILD_BUG_ON((bit_start > bit_end)                              \
  38                    || (bit_end >= (sizeof(1ull) * 8)));                \
  39        return (((1ull << (bit_end - bit_start)) - 1) << 1) + 1;        \
  40}                                                                       \
  41static u64 event_get_##name(struct perf_event *event)                   \
  42{                                                                       \
  43        return (event->attr.attr_var >> (bit_start)) &                  \
  44                event_get_##name##_max();                               \
  45}
  46
  47#endif
  48