1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright 2022, Athira Rajeev, IBM Corp.
4 * Copyright 2022, Madhavan Srinivasan, IBM Corp.
5 * Copyright 2022, Kajol Jain, IBM Corp.
6 */
7
8#include <sys/stat.h>
9#include "../event.h"
10
11#define POWER10 0x80
12#define POWER9 0x4e
13#define PERF_POWER9_MASK 0x7f8ffffffffffff
14#define PERF_POWER10_MASK 0x7ffffffffffffff
15
16#define MMCR0_FC56 0x00000010UL /* freeze counters 5 and 6 */
17#define MMCR0_PMCCEXT 0x00000200UL /* PMCCEXT control */
18#define MMCR1_RSQ 0x200000000000ULL /* radix scope qual field */
19#define BHRB_DISABLE 0x2000000000ULL /* MMCRA BHRB DISABLE bit */
20
21extern int ev_mask_pmcxsel, ev_shift_pmcxsel;
22extern int ev_mask_marked, ev_shift_marked;
23extern int ev_mask_comb, ev_shift_comb;
24extern int ev_mask_unit, ev_shift_unit;
25extern int ev_mask_pmc, ev_shift_pmc;
26extern int ev_mask_cache, ev_shift_cache;
27extern int ev_mask_sample, ev_shift_sample;
28extern int ev_mask_thd_sel, ev_shift_thd_sel;
29extern int ev_mask_thd_start, ev_shift_thd_start;
30extern int ev_mask_thd_stop, ev_shift_thd_stop;
31extern int ev_mask_thd_cmp, ev_shift_thd_cmp;
32extern int ev_mask_sm, ev_shift_sm;
33extern int ev_mask_rsq, ev_shift_rsq;
34extern int ev_mask_l2l3, ev_shift_l2l3;
35extern int ev_mask_mmcr3_src, ev_shift_mmcr3_src;
36extern int pvr;
37extern u64 platform_extended_mask;
38extern int check_pvr_for_sampling_tests(void);
39extern int platform_check_for_tests(void);
40
41/*
42 * Event code field extraction macro.
43 * Raw event code is combination of multiple
44 * fields. Macro to extract individual fields
45 *
46 * x - Raw event code value
47 * y - Field to extract
48 */
49#define EV_CODE_EXTRACT(x, y) \
50 ((x >> ev_shift_##y) & ev_mask_##y)
51
52void *event_sample_buf_mmap(int fd, int mmap_pages);
53void *__event_read_samples(void *sample_buff, size_t *size, u64 *sample_count);
54int collect_samples(void *sample_buff);
55u64 *get_intr_regs(struct event *event, void *sample_buff);
56u64 get_reg_value(u64 *intr_regs, char *register_name);
57int get_thresh_cmp_val(struct event event);
58bool check_for_generic_compat_pmu(void);
59bool check_for_compat_mode(void);
60
61static inline int get_mmcr0_fc56(u64 mmcr0, int pmc)
62{
63 return (mmcr0 & MMCR0_FC56);
64}
65
66static inline int get_mmcr0_pmccext(u64 mmcr0, int pmc)
67{
68 return (mmcr0 & MMCR0_PMCCEXT);
69}
70
71static inline int get_mmcr0_pmao(u64 mmcr0, int pmc)
72{
73 return ((mmcr0 >> 7) & 0x1);
74}
75
76static inline int get_mmcr0_cc56run(u64 mmcr0, int pmc)
77{
78 return ((mmcr0 >> 8) & 0x1);
79}
80
81static inline int get_mmcr0_pmcjce(u64 mmcr0, int pmc)
82{
83 return ((mmcr0 >> 14) & 0x1);
84}
85
86static inline int get_mmcr0_pmc1ce(u64 mmcr0, int pmc)
87{
88 return ((mmcr0 >> 15) & 0x1);
89}
90
91static inline int get_mmcr0_pmae(u64 mmcr0, int pmc)
92{
93 return ((mmcr0 >> 27) & 0x1);
94}
95
96static inline int get_mmcr1_pmcxsel(u64 mmcr1, int pmc)
97{
98 return ((mmcr1 >> ((24 - (((pmc) - 1) * 8))) & 0xff));
99}
100
101static inline int get_mmcr1_unit(u64 mmcr1, int pmc)
102{
103 return ((mmcr1 >> ((60 - (4 * ((pmc) - 1))))) & 0xf);
104}
105
106static inline int get_mmcr1_comb(u64 mmcr1, int pmc)
107{
108 return ((mmcr1 >> (38 - ((pmc - 1) * 2))) & 0x3);
109}
110
111static inline int get_mmcr1_cache(u64 mmcr1, int pmc)
112{
113 return ((mmcr1 >> 46) & 0x3);
114}
115
116static inline int get_mmcr1_rsq(u64 mmcr1, int pmc)
117{
118 return mmcr1 & MMCR1_RSQ;
119}
120
121static inline int get_mmcr2_fcs(u64 mmcr2, int pmc)
122{
123 return ((mmcr2 & (1ull << (63 - (((pmc) - 1) * 9)))) >> (63 - (((pmc) - 1) * 9)));
124}
125
126static inline int get_mmcr2_fcp(u64 mmcr2, int pmc)
127{
128 return ((mmcr2 & (1ull << (62 - (((pmc) - 1) * 9)))) >> (62 - (((pmc) - 1) * 9)));
129}
130
131static inline int get_mmcr2_fcpc(u64 mmcr2, int pmc)
132{
133 return ((mmcr2 & (1ull << (61 - (((pmc) - 1) * 9)))) >> (61 - (((pmc) - 1) * 9)));
134}
135
136static inline int get_mmcr2_fcm1(u64 mmcr2, int pmc)
137{
138 return ((mmcr2 & (1ull << (60 - (((pmc) - 1) * 9)))) >> (60 - (((pmc) - 1) * 9)));
139}
140
141static inline int get_mmcr2_fcm0(u64 mmcr2, int pmc)
142{
143 return ((mmcr2 & (1ull << (59 - (((pmc) - 1) * 9)))) >> (59 - (((pmc) - 1) * 9)));
144}
145
146static inline int get_mmcr2_fcwait(u64 mmcr2, int pmc)
147{
148 return ((mmcr2 & (1ull << (58 - (((pmc) - 1) * 9)))) >> (58 - (((pmc) - 1) * 9)));
149}
150
151static inline int get_mmcr2_fch(u64 mmcr2, int pmc)
152{
153 return ((mmcr2 & (1ull << (57 - (((pmc) - 1) * 9)))) >> (57 - (((pmc) - 1) * 9)));
154}
155
156static inline int get_mmcr2_fcti(u64 mmcr2, int pmc)
157{
158 return ((mmcr2 & (1ull << (56 - (((pmc) - 1) * 9)))) >> (56 - (((pmc) - 1) * 9)));
159}
160
161static inline int get_mmcr2_fcta(u64 mmcr2, int pmc)
162{
163 return ((mmcr2 & (1ull << (55 - (((pmc) - 1) * 9)))) >> (55 - (((pmc) - 1) * 9)));
164}
165
166static inline int get_mmcr2_l2l3(u64 mmcr2, int pmc)
167{
168 if (pvr == POWER10)
169 return ((mmcr2 & 0xf8) >> 3);
170 return 0;
171}
172
173static inline int get_mmcr3_src(u64 mmcr3, int pmc)
174{
175 if (pvr != POWER10)
176 return 0;
177 return ((mmcr3 >> ((49 - (15 * ((pmc) - 1))))) & 0x7fff);
178}
179
180static inline int get_mmcra_thd_cmp(u64 mmcra, int pmc)
181{
182 if (pvr == POWER10)
183 return ((mmcra >> 45) & 0x7ff);
184 return ((mmcra >> 45) & 0x3ff);
185}
186
187static inline int get_mmcra_sm(u64 mmcra, int pmc)
188{
189 return ((mmcra >> 42) & 0x3);
190}
191
192static inline u64 get_mmcra_bhrb_disable(u64 mmcra, int pmc)
193{
194 if (pvr == POWER10)
195 return mmcra & BHRB_DISABLE;
196 return 0;
197}
198
199static inline int get_mmcra_ifm(u64 mmcra, int pmc)
200{
201 return ((mmcra >> 30) & 0x3);
202}
203
204static inline int get_mmcra_thd_sel(u64 mmcra, int pmc)
205{
206 return ((mmcra >> 16) & 0x7);
207}
208
209static inline int get_mmcra_thd_start(u64 mmcra, int pmc)
210{
211 return ((mmcra >> 12) & 0xf);
212}
213
214static inline int get_mmcra_thd_stop(u64 mmcra, int pmc)
215{
216 return ((mmcra >> 8) & 0xf);
217}
218
219static inline int get_mmcra_rand_samp_elig(u64 mmcra, int pmc)
220{
221 return ((mmcra >> 4) & 0x7);
222}
223
224static inline int get_mmcra_sample_mode(u64 mmcra, int pmc)
225{
226 return ((mmcra >> 1) & 0x3);
227}
228
229static inline int get_mmcra_marked(u64 mmcra, int pmc)
230{
231 return mmcra & 0x1;
232}
233

source code of linux/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.h