hv-common.h (1476B)
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