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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2d1b21ad CS |
2 | #ifndef LINUX_POWERPC_PERF_HV_COMMON_H_ |
3 | #define LINUX_POWERPC_PERF_HV_COMMON_H_ | |
4 | ||
7b43c679 | 5 | #include <linux/perf_event.h> |
2d1b21ad CS |
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 | ||
7b43c679 CS |
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 | ||
e08e5282 | 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 | ||
7b43c679 CS |
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 | ||
2d1b21ad | 47 | #endif |