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1/*
2 * Linux performance counter support for ARC
3 *
4 * Copyright (C) 2014-2015 Synopsys, Inc. (www.synopsys.com)
5 * Copyright (C) 2011-2013 Synopsys, Inc. (www.synopsys.com)
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 *
11 */
12
13#ifndef __ASM_PERF_EVENT_H
14#define __ASM_PERF_EVENT_H
15
16/* Max number of counters that PCT block may ever have */
17#define ARC_PERF_MAX_COUNTERS 32
18
19#define ARC_REG_CC_BUILD 0xF6
20#define ARC_REG_CC_INDEX 0x240
21#define ARC_REG_CC_NAME0 0x241
22#define ARC_REG_CC_NAME1 0x242
23
24#define ARC_REG_PCT_BUILD 0xF5
25#define ARC_REG_PCT_COUNTL 0x250
26#define ARC_REG_PCT_COUNTH 0x251
27#define ARC_REG_PCT_SNAPL 0x252
28#define ARC_REG_PCT_SNAPH 0x253
29#define ARC_REG_PCT_CONFIG 0x254
30#define ARC_REG_PCT_CONTROL 0x255
31#define ARC_REG_PCT_INDEX 0x256
32#define ARC_REG_PCT_INT_CNTL 0x25C
33#define ARC_REG_PCT_INT_CNTH 0x25D
34#define ARC_REG_PCT_INT_CTRL 0x25E
35#define ARC_REG_PCT_INT_ACT 0x25F
36
37#define ARC_REG_PCT_CONFIG_USER (1 << 18) /* count in user mode */
38#define ARC_REG_PCT_CONFIG_KERN (1 << 19) /* count in kernel mode */
39
40#define ARC_REG_PCT_CONTROL_CC (1 << 16) /* clear counts */
41#define ARC_REG_PCT_CONTROL_SN (1 << 17) /* snapshot */
42
43struct arc_reg_pct_build {
44#ifdef CONFIG_CPU_BIG_ENDIAN
45 unsigned int m:8, c:8, r:5, i:1, s:2, v:8;
46#else
47 unsigned int v:8, s:2, i:1, r:5, c:8, m:8;
48#endif
49};
50
51struct arc_reg_cc_build {
52#ifdef CONFIG_CPU_BIG_ENDIAN
53 unsigned int c:16, r:8, v:8;
54#else
55 unsigned int v:8, r:8, c:16;
56#endif
57};
58
59#define PERF_COUNT_ARC_DCLM (PERF_COUNT_HW_MAX + 0)
60#define PERF_COUNT_ARC_DCSM (PERF_COUNT_HW_MAX + 1)
61#define PERF_COUNT_ARC_ICM (PERF_COUNT_HW_MAX + 2)
62#define PERF_COUNT_ARC_BPOK (PERF_COUNT_HW_MAX + 3)
63#define PERF_COUNT_ARC_EDTLB (PERF_COUNT_HW_MAX + 4)
64#define PERF_COUNT_ARC_EITLB (PERF_COUNT_HW_MAX + 5)
65#define PERF_COUNT_ARC_LDC (PERF_COUNT_HW_MAX + 6)
66#define PERF_COUNT_ARC_STC (PERF_COUNT_HW_MAX + 7)
67
68#define PERF_COUNT_ARC_HW_MAX (PERF_COUNT_HW_MAX + 8)
69
70/*
71 * Some ARC pct quirks:
72 *
73 * PERF_COUNT_HW_STALLED_CYCLES_BACKEND
74 * PERF_COUNT_HW_STALLED_CYCLES_FRONTEND
75 * The ARC 700 can either measure stalls per pipeline stage, or all stalls
76 * combined; for now we assign all stalls to STALLED_CYCLES_BACKEND
77 * and all pipeline flushes (e.g. caused by mispredicts, etc.) to
78 * STALLED_CYCLES_FRONTEND.
79 *
80 * We could start multiple performance counters and combine everything
81 * afterwards, but that makes it complicated.
82 *
83 * Note that I$ cache misses aren't counted by either of the two!
84 */
85
86/*
87 * ARC PCT has hardware conditions with fixed "names" but variable "indexes"
88 * (based on a specific RTL build)
89 * Below is the static map between perf generic/arc specific event_id and
90 * h/w condition names.
91 * At the time of probe, we loop thru each index and find it's name to
92 * complete the mapping of perf event_id to h/w index as latter is needed
93 * to program the counter really
94 */
95static const char * const arc_pmu_ev_hw_map[] = {
96 /* count cycles */
97 [PERF_COUNT_HW_CPU_CYCLES] = "crun",
98 [PERF_COUNT_HW_REF_CPU_CYCLES] = "crun",
99 [PERF_COUNT_HW_BUS_CYCLES] = "crun",
100
101 [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = "bflush",
102 [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = "bstall",
103
104 /* counts condition */
105 [PERF_COUNT_HW_INSTRUCTIONS] = "iall",
106 [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = "ijmp", /* Excludes ZOL jumps */
107 [PERF_COUNT_ARC_BPOK] = "bpok", /* NP-NT, PT-T, PNT-NT */
108#ifdef CONFIG_ISA_ARCV2
109 [PERF_COUNT_HW_BRANCH_MISSES] = "bpmp",
110#else
111 [PERF_COUNT_HW_BRANCH_MISSES] = "bpfail", /* NP-T, PT-NT, PNT-T */
112#endif
113 [PERF_COUNT_ARC_LDC] = "imemrdc", /* Instr: mem read cached */
114 [PERF_COUNT_ARC_STC] = "imemwrc", /* Instr: mem write cached */
115
116 [PERF_COUNT_ARC_DCLM] = "dclm", /* D-cache Load Miss */
117 [PERF_COUNT_ARC_DCSM] = "dcsm", /* D-cache Store Miss */
118 [PERF_COUNT_ARC_ICM] = "icm", /* I-cache Miss */
119 [PERF_COUNT_ARC_EDTLB] = "edtlb", /* D-TLB Miss */
120 [PERF_COUNT_ARC_EITLB] = "eitlb", /* I-TLB Miss */
121
122 [PERF_COUNT_HW_CACHE_REFERENCES] = "imemrdc", /* Instr: mem read cached */
123 [PERF_COUNT_HW_CACHE_MISSES] = "dclm", /* D-cache Load Miss */
124};
125
126#define C(_x) PERF_COUNT_HW_CACHE_##_x
127#define CACHE_OP_UNSUPPORTED 0xffff
128
129static const unsigned arc_pmu_cache_map[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = {
130 [C(L1D)] = {
131 [C(OP_READ)] = {
132 [C(RESULT_ACCESS)] = PERF_COUNT_ARC_LDC,
133 [C(RESULT_MISS)] = PERF_COUNT_ARC_DCLM,
134 },
135 [C(OP_WRITE)] = {
136 [C(RESULT_ACCESS)] = PERF_COUNT_ARC_STC,
137 [C(RESULT_MISS)] = PERF_COUNT_ARC_DCSM,
138 },
139 [C(OP_PREFETCH)] = {
140 [C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
141 [C(RESULT_MISS)] = CACHE_OP_UNSUPPORTED,
142 },
143 },
144 [C(L1I)] = {
145 [C(OP_READ)] = {
146 [C(RESULT_ACCESS)] = PERF_COUNT_HW_INSTRUCTIONS,
147 [C(RESULT_MISS)] = PERF_COUNT_ARC_ICM,
148 },
149 [C(OP_WRITE)] = {
150 [C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
151 [C(RESULT_MISS)] = CACHE_OP_UNSUPPORTED,
152 },
153 [C(OP_PREFETCH)] = {
154 [C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
155 [C(RESULT_MISS)] = CACHE_OP_UNSUPPORTED,
156 },
157 },
158 [C(LL)] = {
159 [C(OP_READ)] = {
160 [C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
161 [C(RESULT_MISS)] = CACHE_OP_UNSUPPORTED,
162 },
163 [C(OP_WRITE)] = {
164 [C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
165 [C(RESULT_MISS)] = CACHE_OP_UNSUPPORTED,
166 },
167 [C(OP_PREFETCH)] = {
168 [C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
169 [C(RESULT_MISS)] = CACHE_OP_UNSUPPORTED,
170 },
171 },
172 [C(DTLB)] = {
173 [C(OP_READ)] = {
174 [C(RESULT_ACCESS)] = PERF_COUNT_ARC_LDC,
175 [C(RESULT_MISS)] = PERF_COUNT_ARC_EDTLB,
176 },
177 /* DTLB LD/ST Miss not segregated by h/w*/
178 [C(OP_WRITE)] = {
179 [C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
180 [C(RESULT_MISS)] = CACHE_OP_UNSUPPORTED,
181 },
182 [C(OP_PREFETCH)] = {
183 [C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
184 [C(RESULT_MISS)] = CACHE_OP_UNSUPPORTED,
185 },
186 },
187 [C(ITLB)] = {
188 [C(OP_READ)] = {
189 [C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
190 [C(RESULT_MISS)] = PERF_COUNT_ARC_EITLB,
191 },
192 [C(OP_WRITE)] = {
193 [C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
194 [C(RESULT_MISS)] = CACHE_OP_UNSUPPORTED,
195 },
196 [C(OP_PREFETCH)] = {
197 [C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
198 [C(RESULT_MISS)] = CACHE_OP_UNSUPPORTED,
199 },
200 },
201 [C(BPU)] = {
202 [C(OP_READ)] = {
203 [C(RESULT_ACCESS)] = PERF_COUNT_HW_BRANCH_INSTRUCTIONS,
204 [C(RESULT_MISS)] = PERF_COUNT_HW_BRANCH_MISSES,
205 },
206 [C(OP_WRITE)] = {
207 [C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
208 [C(RESULT_MISS)] = CACHE_OP_UNSUPPORTED,
209 },
210 [C(OP_PREFETCH)] = {
211 [C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
212 [C(RESULT_MISS)] = CACHE_OP_UNSUPPORTED,
213 },
214 },
215 [C(NODE)] = {
216 [C(OP_READ)] = {
217 [C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
218 [C(RESULT_MISS)] = CACHE_OP_UNSUPPORTED,
219 },
220 [C(OP_WRITE)] = {
221 [C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
222 [C(RESULT_MISS)] = CACHE_OP_UNSUPPORTED,
223 },
224 [C(OP_PREFETCH)] = {
225 [C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
226 [C(RESULT_MISS)] = CACHE_OP_UNSUPPORTED,
227 },
228 },
229};
230
231#endif /* __ASM_PERF_EVENT_H */
1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Linux performance counter support for ARC
4 *
5 * Copyright (C) 2014-2015 Synopsys, Inc. (www.synopsys.com)
6 * Copyright (C) 2011-2013 Synopsys, Inc. (www.synopsys.com)
7 */
8
9#ifndef __ASM_PERF_EVENT_H
10#define __ASM_PERF_EVENT_H
11
12/* Max number of counters that PCT block may ever have */
13#define ARC_PERF_MAX_COUNTERS 32
14
15#define ARC_REG_CC_BUILD 0xF6
16#define ARC_REG_CC_INDEX 0x240
17#define ARC_REG_CC_NAME0 0x241
18#define ARC_REG_CC_NAME1 0x242
19
20#define ARC_REG_PCT_BUILD 0xF5
21#define ARC_REG_PCT_COUNTL 0x250
22#define ARC_REG_PCT_COUNTH 0x251
23#define ARC_REG_PCT_SNAPL 0x252
24#define ARC_REG_PCT_SNAPH 0x253
25#define ARC_REG_PCT_CONFIG 0x254
26#define ARC_REG_PCT_CONTROL 0x255
27#define ARC_REG_PCT_INDEX 0x256
28#define ARC_REG_PCT_INT_CNTL 0x25C
29#define ARC_REG_PCT_INT_CNTH 0x25D
30#define ARC_REG_PCT_INT_CTRL 0x25E
31#define ARC_REG_PCT_INT_ACT 0x25F
32
33#define ARC_REG_PCT_CONFIG_USER (1 << 18) /* count in user mode */
34#define ARC_REG_PCT_CONFIG_KERN (1 << 19) /* count in kernel mode */
35
36#define ARC_REG_PCT_CONTROL_CC (1 << 16) /* clear counts */
37#define ARC_REG_PCT_CONTROL_SN (1 << 17) /* snapshot */
38
39struct arc_reg_pct_build {
40#ifdef CONFIG_CPU_BIG_ENDIAN
41 unsigned int m:8, c:8, r:5, i:1, s:2, v:8;
42#else
43 unsigned int v:8, s:2, i:1, r:5, c:8, m:8;
44#endif
45};
46
47struct arc_reg_cc_build {
48#ifdef CONFIG_CPU_BIG_ENDIAN
49 unsigned int c:16, r:8, v:8;
50#else
51 unsigned int v:8, r:8, c:16;
52#endif
53};
54
55#define PERF_COUNT_ARC_DCLM (PERF_COUNT_HW_MAX + 0)
56#define PERF_COUNT_ARC_DCSM (PERF_COUNT_HW_MAX + 1)
57#define PERF_COUNT_ARC_ICM (PERF_COUNT_HW_MAX + 2)
58#define PERF_COUNT_ARC_BPOK (PERF_COUNT_HW_MAX + 3)
59#define PERF_COUNT_ARC_EDTLB (PERF_COUNT_HW_MAX + 4)
60#define PERF_COUNT_ARC_EITLB (PERF_COUNT_HW_MAX + 5)
61#define PERF_COUNT_ARC_LDC (PERF_COUNT_HW_MAX + 6)
62#define PERF_COUNT_ARC_STC (PERF_COUNT_HW_MAX + 7)
63
64#define PERF_COUNT_ARC_HW_MAX (PERF_COUNT_HW_MAX + 8)
65
66#ifdef CONFIG_PERF_EVENTS
67#define perf_arch_bpf_user_pt_regs(regs) (struct user_regs_struct *)regs
68#endif
69
70#endif /* __ASM_PERF_EVENT_H */