Commit | Line | Data |
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ce1e22b0 JO |
1 | #include <stddef.h> |
2 | #include <stdlib.h> | |
3 | #include <string.h> | |
4 | #include <errno.h> | |
54fbad54 JO |
5 | #include <sys/types.h> |
6 | #include <sys/stat.h> | |
7 | #include <unistd.h> | |
8 | #include <api/fs/fs.h> | |
acbe613e | 9 | #include "mem-events.h" |
ce1e22b0 | 10 | #include "debug.h" |
0c877d75 | 11 | #include "symbol.h" |
acbe613e | 12 | |
b0d745b3 JO |
13 | unsigned int perf_mem_events__loads_ldlat = 30; |
14 | ||
54fbad54 | 15 | #define E(t, n, s) { .tag = t, .name = n, .sysfs_name = s } |
acbe613e JO |
16 | |
17 | struct perf_mem_event perf_mem_events[PERF_MEM_EVENTS__MAX] = { | |
b0d745b3 | 18 | E("ldlat-loads", "cpu/mem-loads,ldlat=%u/P", "mem-loads"), |
54fbad54 | 19 | E("ldlat-stores", "cpu/mem-stores/P", "mem-stores"), |
acbe613e | 20 | }; |
54fbad54 | 21 | #undef E |
acbe613e JO |
22 | |
23 | #undef E | |
ce1e22b0 | 24 | |
b0d745b3 JO |
25 | static char mem_loads_name[100]; |
26 | static bool mem_loads_name__init; | |
27 | ||
2ba7ac58 JO |
28 | char *perf_mem_events__name(int i) |
29 | { | |
b0d745b3 JO |
30 | if (i == PERF_MEM_EVENTS__LOAD) { |
31 | if (!mem_loads_name__init) { | |
32 | mem_loads_name__init = true; | |
33 | scnprintf(mem_loads_name, sizeof(mem_loads_name), | |
34 | perf_mem_events[i].name, | |
35 | perf_mem_events__loads_ldlat); | |
36 | } | |
37 | return mem_loads_name; | |
38 | } | |
39 | ||
2ba7ac58 JO |
40 | return (char *)perf_mem_events[i].name; |
41 | } | |
42 | ||
ce1e22b0 JO |
43 | int perf_mem_events__parse(const char *str) |
44 | { | |
45 | char *tok, *saveptr = NULL; | |
46 | bool found = false; | |
47 | char *buf; | |
48 | int j; | |
49 | ||
50 | /* We need buffer that we know we can write to. */ | |
51 | buf = malloc(strlen(str) + 1); | |
52 | if (!buf) | |
53 | return -ENOMEM; | |
54 | ||
55 | strcpy(buf, str); | |
56 | ||
57 | tok = strtok_r((char *)buf, ",", &saveptr); | |
58 | ||
59 | while (tok) { | |
60 | for (j = 0; j < PERF_MEM_EVENTS__MAX; j++) { | |
61 | struct perf_mem_event *e = &perf_mem_events[j]; | |
62 | ||
63 | if (strstr(e->tag, tok)) | |
64 | e->record = found = true; | |
65 | } | |
66 | ||
67 | tok = strtok_r(NULL, ",", &saveptr); | |
68 | } | |
69 | ||
70 | free(buf); | |
71 | ||
72 | if (found) | |
73 | return 0; | |
74 | ||
75 | pr_err("failed: event '%s' not found, use '-e list' to get list of available events\n", str); | |
76 | return -1; | |
77 | } | |
54fbad54 JO |
78 | |
79 | int perf_mem_events__init(void) | |
80 | { | |
81 | const char *mnt = sysfs__mount(); | |
82 | bool found = false; | |
83 | int j; | |
84 | ||
85 | if (!mnt) | |
86 | return -ENOENT; | |
87 | ||
88 | for (j = 0; j < PERF_MEM_EVENTS__MAX; j++) { | |
89 | char path[PATH_MAX]; | |
90 | struct perf_mem_event *e = &perf_mem_events[j]; | |
91 | struct stat st; | |
92 | ||
93 | scnprintf(path, PATH_MAX, "%s/devices/cpu/events/%s", | |
94 | mnt, e->sysfs_name); | |
95 | ||
96 | if (!stat(path, &st)) | |
97 | e->supported = found = true; | |
98 | } | |
99 | ||
100 | return found ? 0 : -ENOENT; | |
101 | } | |
0c877d75 JO |
102 | |
103 | static const char * const tlb_access[] = { | |
104 | "N/A", | |
105 | "HIT", | |
106 | "MISS", | |
107 | "L1", | |
108 | "L2", | |
109 | "Walker", | |
110 | "Fault", | |
111 | }; | |
112 | ||
b1a5fbea | 113 | int perf_mem__tlb_scnprintf(char *out, size_t sz, struct mem_info *mem_info) |
0c877d75 JO |
114 | { |
115 | size_t l = 0, i; | |
116 | u64 m = PERF_MEM_TLB_NA; | |
117 | u64 hit, miss; | |
118 | ||
119 | sz -= 1; /* -1 for null termination */ | |
120 | out[0] = '\0'; | |
121 | ||
122 | if (mem_info) | |
123 | m = mem_info->data_src.mem_dtlb; | |
124 | ||
125 | hit = m & PERF_MEM_TLB_HIT; | |
126 | miss = m & PERF_MEM_TLB_MISS; | |
127 | ||
128 | /* already taken care of */ | |
129 | m &= ~(PERF_MEM_TLB_HIT|PERF_MEM_TLB_MISS); | |
130 | ||
131 | for (i = 0; m && i < ARRAY_SIZE(tlb_access); i++, m >>= 1) { | |
132 | if (!(m & 0x1)) | |
133 | continue; | |
134 | if (l) { | |
135 | strcat(out, " or "); | |
136 | l += 4; | |
137 | } | |
b1a5fbea | 138 | l += scnprintf(out + l, sz - l, tlb_access[i]); |
0c877d75 JO |
139 | } |
140 | if (*out == '\0') | |
b1a5fbea | 141 | l += scnprintf(out, sz - l, "N/A"); |
0c877d75 | 142 | if (hit) |
b1a5fbea | 143 | l += scnprintf(out + l, sz - l, " hit"); |
0c877d75 | 144 | if (miss) |
b1a5fbea JO |
145 | l += scnprintf(out + l, sz - l, " miss"); |
146 | ||
147 | return l; | |
0c877d75 | 148 | } |
071e9a1e JO |
149 | |
150 | static const char * const mem_lvl[] = { | |
151 | "N/A", | |
152 | "HIT", | |
153 | "MISS", | |
154 | "L1", | |
155 | "LFB", | |
156 | "L2", | |
157 | "L3", | |
158 | "Local RAM", | |
159 | "Remote RAM (1 hop)", | |
160 | "Remote RAM (2 hops)", | |
161 | "Remote Cache (1 hop)", | |
162 | "Remote Cache (2 hops)", | |
163 | "I/O", | |
164 | "Uncached", | |
165 | }; | |
166 | ||
96907563 | 167 | int perf_mem__lvl_scnprintf(char *out, size_t sz, struct mem_info *mem_info) |
071e9a1e JO |
168 | { |
169 | size_t i, l = 0; | |
170 | u64 m = PERF_MEM_LVL_NA; | |
171 | u64 hit, miss; | |
172 | ||
173 | if (mem_info) | |
174 | m = mem_info->data_src.mem_lvl; | |
175 | ||
176 | sz -= 1; /* -1 for null termination */ | |
177 | out[0] = '\0'; | |
178 | ||
179 | hit = m & PERF_MEM_LVL_HIT; | |
180 | miss = m & PERF_MEM_LVL_MISS; | |
181 | ||
182 | /* already taken care of */ | |
183 | m &= ~(PERF_MEM_LVL_HIT|PERF_MEM_LVL_MISS); | |
184 | ||
185 | for (i = 0; m && i < ARRAY_SIZE(mem_lvl); i++, m >>= 1) { | |
186 | if (!(m & 0x1)) | |
187 | continue; | |
188 | if (l) { | |
189 | strcat(out, " or "); | |
190 | l += 4; | |
191 | } | |
96907563 | 192 | l += scnprintf(out + l, sz - l, mem_lvl[i]); |
071e9a1e JO |
193 | } |
194 | if (*out == '\0') | |
96907563 | 195 | l += scnprintf(out, sz - l, "N/A"); |
071e9a1e | 196 | if (hit) |
96907563 | 197 | l += scnprintf(out + l, sz - l, " hit"); |
071e9a1e | 198 | if (miss) |
96907563 JO |
199 | l += scnprintf(out + l, sz - l, " miss"); |
200 | ||
201 | return l; | |
071e9a1e | 202 | } |
2c07af13 JO |
203 | |
204 | static const char * const snoop_access[] = { | |
205 | "N/A", | |
206 | "None", | |
207 | "Miss", | |
208 | "Hit", | |
209 | "HitM", | |
210 | }; | |
211 | ||
149d7507 | 212 | int perf_mem__snp_scnprintf(char *out, size_t sz, struct mem_info *mem_info) |
2c07af13 JO |
213 | { |
214 | size_t i, l = 0; | |
215 | u64 m = PERF_MEM_SNOOP_NA; | |
216 | ||
217 | sz -= 1; /* -1 for null termination */ | |
218 | out[0] = '\0'; | |
219 | ||
220 | if (mem_info) | |
221 | m = mem_info->data_src.mem_snoop; | |
222 | ||
223 | for (i = 0; m && i < ARRAY_SIZE(snoop_access); i++, m >>= 1) { | |
224 | if (!(m & 0x1)) | |
225 | continue; | |
226 | if (l) { | |
227 | strcat(out, " or "); | |
228 | l += 4; | |
229 | } | |
149d7507 | 230 | l += scnprintf(out + l, sz - l, snoop_access[i]); |
2c07af13 JO |
231 | } |
232 | ||
233 | if (*out == '\0') | |
149d7507 JO |
234 | l += scnprintf(out, sz - l, "N/A"); |
235 | ||
236 | return l; | |
2c07af13 | 237 | } |
69a77275 | 238 | |
8b0819c8 | 239 | int perf_mem__lck_scnprintf(char *out, size_t sz, struct mem_info *mem_info) |
69a77275 JO |
240 | { |
241 | u64 mask = PERF_MEM_LOCK_NA; | |
8b0819c8 | 242 | int l; |
69a77275 JO |
243 | |
244 | if (mem_info) | |
245 | mask = mem_info->data_src.mem_lock; | |
246 | ||
247 | if (mask & PERF_MEM_LOCK_NA) | |
8b0819c8 | 248 | l = scnprintf(out, sz, "N/A"); |
69a77275 | 249 | else if (mask & PERF_MEM_LOCK_LOCKED) |
8b0819c8 | 250 | l = scnprintf(out, sz, "Yes"); |
69a77275 | 251 | else |
8b0819c8 JO |
252 | l = scnprintf(out, sz, "No"); |
253 | ||
254 | return l; | |
69a77275 | 255 | } |
c19ac912 JO |
256 | |
257 | int perf_script__meminfo_scnprintf(char *out, size_t sz, struct mem_info *mem_info) | |
258 | { | |
259 | int i = 0; | |
260 | ||
261 | i += perf_mem__lvl_scnprintf(out, sz, mem_info); | |
262 | i += scnprintf(out + i, sz - i, "|SNP "); | |
263 | i += perf_mem__snp_scnprintf(out + i, sz - i, mem_info); | |
264 | i += scnprintf(out + i, sz - i, "|TLB "); | |
265 | i += perf_mem__tlb_scnprintf(out + i, sz - i, mem_info); | |
266 | i += scnprintf(out + i, sz - i, "|LCK "); | |
267 | i += perf_mem__lck_scnprintf(out + i, sz - i, mem_info); | |
268 | ||
269 | return i; | |
270 | } |