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
8 struct 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
17 unsigned 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) \
21 PMU_FORMAT_ATTR(name, #attr_var ":" #bit_start "-" #bit_end); \
22 EVENT_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) \
32 PMU_FORMAT_ATTR(name, #attr_var ":" #bit_start "-" #bit_end);
33
34 #define EVENT_DEFINE_RANGE(name, attr_var, bit_start, bit_end) \
35 static 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 } \
41 static 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
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