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 | |