Commit | Line | Data |
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f22f54f4 PZ |
1 | #ifdef CONFIG_CPU_SUP_AMD |
2 | ||
caaa8be3 | 3 | static __initconst const u64 amd_hw_cache_event_ids |
f22f54f4 PZ |
4 | [PERF_COUNT_HW_CACHE_MAX] |
5 | [PERF_COUNT_HW_CACHE_OP_MAX] | |
6 | [PERF_COUNT_HW_CACHE_RESULT_MAX] = | |
7 | { | |
8 | [ C(L1D) ] = { | |
9 | [ C(OP_READ) ] = { | |
10 | [ C(RESULT_ACCESS) ] = 0x0040, /* Data Cache Accesses */ | |
83112e68 | 11 | [ C(RESULT_MISS) ] = 0x0141, /* Data Cache Misses */ |
f22f54f4 PZ |
12 | }, |
13 | [ C(OP_WRITE) ] = { | |
14 | [ C(RESULT_ACCESS) ] = 0x0142, /* Data Cache Refills :system */ | |
15 | [ C(RESULT_MISS) ] = 0, | |
16 | }, | |
17 | [ C(OP_PREFETCH) ] = { | |
18 | [ C(RESULT_ACCESS) ] = 0x0267, /* Data Prefetcher :attempts */ | |
19 | [ C(RESULT_MISS) ] = 0x0167, /* Data Prefetcher :cancelled */ | |
20 | }, | |
21 | }, | |
22 | [ C(L1I ) ] = { | |
23 | [ C(OP_READ) ] = { | |
24 | [ C(RESULT_ACCESS) ] = 0x0080, /* Instruction cache fetches */ | |
25 | [ C(RESULT_MISS) ] = 0x0081, /* Instruction cache misses */ | |
26 | }, | |
27 | [ C(OP_WRITE) ] = { | |
28 | [ C(RESULT_ACCESS) ] = -1, | |
29 | [ C(RESULT_MISS) ] = -1, | |
30 | }, | |
31 | [ C(OP_PREFETCH) ] = { | |
32 | [ C(RESULT_ACCESS) ] = 0x014B, /* Prefetch Instructions :Load */ | |
33 | [ C(RESULT_MISS) ] = 0, | |
34 | }, | |
35 | }, | |
36 | [ C(LL ) ] = { | |
37 | [ C(OP_READ) ] = { | |
38 | [ C(RESULT_ACCESS) ] = 0x037D, /* Requests to L2 Cache :IC+DC */ | |
39 | [ C(RESULT_MISS) ] = 0x037E, /* L2 Cache Misses : IC+DC */ | |
40 | }, | |
41 | [ C(OP_WRITE) ] = { | |
42 | [ C(RESULT_ACCESS) ] = 0x017F, /* L2 Fill/Writeback */ | |
43 | [ C(RESULT_MISS) ] = 0, | |
44 | }, | |
45 | [ C(OP_PREFETCH) ] = { | |
46 | [ C(RESULT_ACCESS) ] = 0, | |
47 | [ C(RESULT_MISS) ] = 0, | |
48 | }, | |
49 | }, | |
50 | [ C(DTLB) ] = { | |
51 | [ C(OP_READ) ] = { | |
52 | [ C(RESULT_ACCESS) ] = 0x0040, /* Data Cache Accesses */ | |
ba0cef3d | 53 | [ C(RESULT_MISS) ] = 0x0746, /* L1_DTLB_AND_L2_DLTB_MISS.ALL */ |
f22f54f4 PZ |
54 | }, |
55 | [ C(OP_WRITE) ] = { | |
56 | [ C(RESULT_ACCESS) ] = 0, | |
57 | [ C(RESULT_MISS) ] = 0, | |
58 | }, | |
59 | [ C(OP_PREFETCH) ] = { | |
60 | [ C(RESULT_ACCESS) ] = 0, | |
61 | [ C(RESULT_MISS) ] = 0, | |
62 | }, | |
63 | }, | |
64 | [ C(ITLB) ] = { | |
65 | [ C(OP_READ) ] = { | |
66 | [ C(RESULT_ACCESS) ] = 0x0080, /* Instruction fecthes */ | |
ba0cef3d | 67 | [ C(RESULT_MISS) ] = 0x0385, /* L1_ITLB_AND_L2_ITLB_MISS.ALL */ |
f22f54f4 PZ |
68 | }, |
69 | [ C(OP_WRITE) ] = { | |
70 | [ C(RESULT_ACCESS) ] = -1, | |
71 | [ C(RESULT_MISS) ] = -1, | |
72 | }, | |
73 | [ C(OP_PREFETCH) ] = { | |
74 | [ C(RESULT_ACCESS) ] = -1, | |
75 | [ C(RESULT_MISS) ] = -1, | |
76 | }, | |
77 | }, | |
78 | [ C(BPU ) ] = { | |
79 | [ C(OP_READ) ] = { | |
80 | [ C(RESULT_ACCESS) ] = 0x00c2, /* Retired Branch Instr. */ | |
81 | [ C(RESULT_MISS) ] = 0x00c3, /* Retired Mispredicted BI */ | |
82 | }, | |
83 | [ C(OP_WRITE) ] = { | |
84 | [ C(RESULT_ACCESS) ] = -1, | |
85 | [ C(RESULT_MISS) ] = -1, | |
86 | }, | |
87 | [ C(OP_PREFETCH) ] = { | |
88 | [ C(RESULT_ACCESS) ] = -1, | |
89 | [ C(RESULT_MISS) ] = -1, | |
90 | }, | |
91 | }, | |
92 | }; | |
93 | ||
94 | /* | |
95 | * AMD Performance Monitor K7 and later. | |
96 | */ | |
97 | static const u64 amd_perfmon_event_map[] = | |
98 | { | |
99 | [PERF_COUNT_HW_CPU_CYCLES] = 0x0076, | |
100 | [PERF_COUNT_HW_INSTRUCTIONS] = 0x00c0, | |
101 | [PERF_COUNT_HW_CACHE_REFERENCES] = 0x0080, | |
102 | [PERF_COUNT_HW_CACHE_MISSES] = 0x0081, | |
f287d332 VW |
103 | [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x00c2, |
104 | [PERF_COUNT_HW_BRANCH_MISSES] = 0x00c3, | |
f22f54f4 PZ |
105 | }; |
106 | ||
107 | static u64 amd_pmu_event_map(int hw_event) | |
108 | { | |
109 | return amd_perfmon_event_map[hw_event]; | |
110 | } | |
111 | ||
b4cdc5c2 | 112 | static int amd_pmu_hw_config(struct perf_event *event) |
f22f54f4 | 113 | { |
b4cdc5c2 PZ |
114 | int ret = x86_pmu_hw_config(event); |
115 | ||
116 | if (ret) | |
117 | return ret; | |
118 | ||
119 | if (event->attr.type != PERF_TYPE_RAW) | |
120 | return 0; | |
121 | ||
122 | event->hw.config |= event->attr.config & AMD64_RAW_EVENT_MASK; | |
123 | ||
124 | return 0; | |
f22f54f4 PZ |
125 | } |
126 | ||
127 | /* | |
128 | * AMD64 events are detected based on their event codes. | |
129 | */ | |
4979d272 RR |
130 | static inline unsigned int amd_get_event_code(struct hw_perf_event *hwc) |
131 | { | |
132 | return ((hwc->config >> 24) & 0x0f00) | (hwc->config & 0x00ff); | |
133 | } | |
134 | ||
f22f54f4 PZ |
135 | static inline int amd_is_nb_event(struct hw_perf_event *hwc) |
136 | { | |
137 | return (hwc->config & 0xe0) == 0xe0; | |
138 | } | |
139 | ||
b38b24ea PZ |
140 | static inline int amd_has_nb(struct cpu_hw_events *cpuc) |
141 | { | |
142 | struct amd_nb *nb = cpuc->amd_nb; | |
143 | ||
144 | return nb && nb->nb_id != -1; | |
145 | } | |
146 | ||
f22f54f4 PZ |
147 | static void amd_put_event_constraints(struct cpu_hw_events *cpuc, |
148 | struct perf_event *event) | |
149 | { | |
150 | struct hw_perf_event *hwc = &event->hw; | |
151 | struct amd_nb *nb = cpuc->amd_nb; | |
152 | int i; | |
153 | ||
154 | /* | |
155 | * only care about NB events | |
156 | */ | |
b38b24ea | 157 | if (!(amd_has_nb(cpuc) && amd_is_nb_event(hwc))) |
f22f54f4 PZ |
158 | return; |
159 | ||
160 | /* | |
161 | * need to scan whole list because event may not have | |
162 | * been assigned during scheduling | |
163 | * | |
164 | * no race condition possible because event can only | |
165 | * be removed on one CPU at a time AND PMU is disabled | |
166 | * when we come here | |
167 | */ | |
948b1bb8 | 168 | for (i = 0; i < x86_pmu.num_counters; i++) { |
f22f54f4 PZ |
169 | if (nb->owners[i] == event) { |
170 | cmpxchg(nb->owners+i, event, NULL); | |
171 | break; | |
172 | } | |
173 | } | |
174 | } | |
175 | ||
176 | /* | |
177 | * AMD64 NorthBridge events need special treatment because | |
178 | * counter access needs to be synchronized across all cores | |
179 | * of a package. Refer to BKDG section 3.12 | |
180 | * | |
181 | * NB events are events measuring L3 cache, Hypertransport | |
182 | * traffic. They are identified by an event code >= 0xe00. | |
183 | * They measure events on the NorthBride which is shared | |
184 | * by all cores on a package. NB events are counted on a | |
185 | * shared set of counters. When a NB event is programmed | |
186 | * in a counter, the data actually comes from a shared | |
187 | * counter. Thus, access to those counters needs to be | |
188 | * synchronized. | |
189 | * | |
190 | * We implement the synchronization such that no two cores | |
191 | * can be measuring NB events using the same counters. Thus, | |
192 | * we maintain a per-NB allocation table. The available slot | |
193 | * is propagated using the event_constraint structure. | |
194 | * | |
195 | * We provide only one choice for each NB event based on | |
196 | * the fact that only NB events have restrictions. Consequently, | |
197 | * if a counter is available, there is a guarantee the NB event | |
198 | * will be assigned to it. If no slot is available, an empty | |
199 | * constraint is returned and scheduling will eventually fail | |
200 | * for this event. | |
201 | * | |
202 | * Note that all cores attached the same NB compete for the same | |
203 | * counters to host NB events, this is why we use atomic ops. Some | |
204 | * multi-chip CPUs may have more than one NB. | |
205 | * | |
206 | * Given that resources are allocated (cmpxchg), they must be | |
207 | * eventually freed for others to use. This is accomplished by | |
208 | * calling amd_put_event_constraints(). | |
209 | * | |
210 | * Non NB events are not impacted by this restriction. | |
211 | */ | |
212 | static struct event_constraint * | |
213 | amd_get_event_constraints(struct cpu_hw_events *cpuc, struct perf_event *event) | |
214 | { | |
215 | struct hw_perf_event *hwc = &event->hw; | |
216 | struct amd_nb *nb = cpuc->amd_nb; | |
217 | struct perf_event *old = NULL; | |
948b1bb8 | 218 | int max = x86_pmu.num_counters; |
f22f54f4 PZ |
219 | int i, j, k = -1; |
220 | ||
221 | /* | |
222 | * if not NB event or no NB, then no constraints | |
223 | */ | |
b38b24ea | 224 | if (!(amd_has_nb(cpuc) && amd_is_nb_event(hwc))) |
f22f54f4 PZ |
225 | return &unconstrained; |
226 | ||
227 | /* | |
228 | * detect if already present, if so reuse | |
229 | * | |
230 | * cannot merge with actual allocation | |
231 | * because of possible holes | |
232 | * | |
233 | * event can already be present yet not assigned (in hwc->idx) | |
234 | * because of successive calls to x86_schedule_events() from | |
235 | * hw_perf_group_sched_in() without hw_perf_enable() | |
236 | */ | |
237 | for (i = 0; i < max; i++) { | |
238 | /* | |
239 | * keep track of first free slot | |
240 | */ | |
241 | if (k == -1 && !nb->owners[i]) | |
242 | k = i; | |
243 | ||
244 | /* already present, reuse */ | |
245 | if (nb->owners[i] == event) | |
246 | goto done; | |
247 | } | |
248 | /* | |
249 | * not present, so grab a new slot | |
250 | * starting either at: | |
251 | */ | |
252 | if (hwc->idx != -1) { | |
253 | /* previous assignment */ | |
254 | i = hwc->idx; | |
255 | } else if (k != -1) { | |
256 | /* start from free slot found */ | |
257 | i = k; | |
258 | } else { | |
259 | /* | |
260 | * event not found, no slot found in | |
261 | * first pass, try again from the | |
262 | * beginning | |
263 | */ | |
264 | i = 0; | |
265 | } | |
266 | j = i; | |
267 | do { | |
268 | old = cmpxchg(nb->owners+i, NULL, event); | |
269 | if (!old) | |
270 | break; | |
271 | if (++i == max) | |
272 | i = 0; | |
273 | } while (i != j); | |
274 | done: | |
275 | if (!old) | |
276 | return &nb->event_constraints[i]; | |
277 | ||
278 | return &emptyconstraint; | |
279 | } | |
280 | ||
c079c791 | 281 | static struct amd_nb *amd_alloc_nb(int cpu) |
f22f54f4 PZ |
282 | { |
283 | struct amd_nb *nb; | |
284 | int i; | |
285 | ||
034c6efa PZ |
286 | nb = kmalloc_node(sizeof(struct amd_nb), GFP_KERNEL | __GFP_ZERO, |
287 | cpu_to_node(cpu)); | |
f22f54f4 PZ |
288 | if (!nb) |
289 | return NULL; | |
290 | ||
c079c791 | 291 | nb->nb_id = -1; |
f22f54f4 PZ |
292 | |
293 | /* | |
294 | * initialize all possible NB constraints | |
295 | */ | |
948b1bb8 | 296 | for (i = 0; i < x86_pmu.num_counters; i++) { |
34538ee7 | 297 | __set_bit(i, nb->event_constraints[i].idxmsk); |
f22f54f4 PZ |
298 | nb->event_constraints[i].weight = 1; |
299 | } | |
300 | return nb; | |
301 | } | |
302 | ||
b38b24ea PZ |
303 | static int amd_pmu_cpu_prepare(int cpu) |
304 | { | |
305 | struct cpu_hw_events *cpuc = &per_cpu(cpu_hw_events, cpu); | |
306 | ||
307 | WARN_ON_ONCE(cpuc->amd_nb); | |
308 | ||
309 | if (boot_cpu_data.x86_max_cores < 2) | |
310 | return NOTIFY_OK; | |
311 | ||
c079c791 | 312 | cpuc->amd_nb = amd_alloc_nb(cpu); |
b38b24ea PZ |
313 | if (!cpuc->amd_nb) |
314 | return NOTIFY_BAD; | |
315 | ||
316 | return NOTIFY_OK; | |
317 | } | |
318 | ||
319 | static void amd_pmu_cpu_starting(int cpu) | |
f22f54f4 | 320 | { |
b38b24ea PZ |
321 | struct cpu_hw_events *cpuc = &per_cpu(cpu_hw_events, cpu); |
322 | struct amd_nb *nb; | |
f22f54f4 PZ |
323 | int i, nb_id; |
324 | ||
325 | if (boot_cpu_data.x86_max_cores < 2) | |
326 | return; | |
327 | ||
f22f54f4 | 328 | nb_id = amd_get_nb_id(cpu); |
b38b24ea | 329 | WARN_ON_ONCE(nb_id == BAD_APICID); |
f22f54f4 | 330 | |
f22f54f4 | 331 | for_each_online_cpu(i) { |
b38b24ea PZ |
332 | nb = per_cpu(cpu_hw_events, i).amd_nb; |
333 | if (WARN_ON_ONCE(!nb)) | |
f22f54f4 | 334 | continue; |
f22f54f4 | 335 | |
b38b24ea PZ |
336 | if (nb->nb_id == nb_id) { |
337 | kfree(cpuc->amd_nb); | |
338 | cpuc->amd_nb = nb; | |
339 | break; | |
340 | } | |
f22f54f4 | 341 | } |
b38b24ea PZ |
342 | |
343 | cpuc->amd_nb->nb_id = nb_id; | |
344 | cpuc->amd_nb->refcnt++; | |
f22f54f4 PZ |
345 | } |
346 | ||
b38b24ea | 347 | static void amd_pmu_cpu_dead(int cpu) |
f22f54f4 PZ |
348 | { |
349 | struct cpu_hw_events *cpuhw; | |
350 | ||
351 | if (boot_cpu_data.x86_max_cores < 2) | |
352 | return; | |
353 | ||
354 | cpuhw = &per_cpu(cpu_hw_events, cpu); | |
355 | ||
a90110c6 | 356 | if (cpuhw->amd_nb) { |
b38b24ea PZ |
357 | struct amd_nb *nb = cpuhw->amd_nb; |
358 | ||
359 | if (nb->nb_id == -1 || --nb->refcnt == 0) | |
360 | kfree(nb); | |
f22f54f4 | 361 | |
a90110c6 RW |
362 | cpuhw->amd_nb = NULL; |
363 | } | |
f22f54f4 PZ |
364 | } |
365 | ||
caaa8be3 | 366 | static __initconst const struct x86_pmu amd_pmu = { |
3f6da390 PZ |
367 | .name = "AMD", |
368 | .handle_irq = x86_pmu_handle_irq, | |
369 | .disable_all = x86_pmu_disable_all, | |
370 | .enable_all = x86_pmu_enable_all, | |
371 | .enable = x86_pmu_enable_event, | |
372 | .disable = x86_pmu_disable_event, | |
b4cdc5c2 | 373 | .hw_config = amd_pmu_hw_config, |
a072738e | 374 | .schedule_events = x86_schedule_events, |
3f6da390 PZ |
375 | .eventsel = MSR_K7_EVNTSEL0, |
376 | .perfctr = MSR_K7_PERFCTR0, | |
377 | .event_map = amd_pmu_event_map, | |
3f6da390 | 378 | .max_events = ARRAY_SIZE(amd_perfmon_event_map), |
948b1bb8 RR |
379 | .num_counters = 4, |
380 | .cntval_bits = 48, | |
381 | .cntval_mask = (1ULL << 48) - 1, | |
3f6da390 PZ |
382 | .apic = 1, |
383 | /* use highest bit to detect overflow */ | |
384 | .max_period = (1ULL << 47) - 1, | |
385 | .get_event_constraints = amd_get_event_constraints, | |
386 | .put_event_constraints = amd_put_event_constraints, | |
387 | ||
b38b24ea PZ |
388 | .cpu_prepare = amd_pmu_cpu_prepare, |
389 | .cpu_starting = amd_pmu_cpu_starting, | |
390 | .cpu_dead = amd_pmu_cpu_dead, | |
3f6da390 PZ |
391 | }; |
392 | ||
4979d272 RR |
393 | /* AMD Family 15h */ |
394 | ||
395 | #define AMD_EVENT_TYPE_MASK 0x000000F0ULL | |
396 | ||
397 | #define AMD_EVENT_FP 0x00000000ULL ... 0x00000010ULL | |
398 | #define AMD_EVENT_LS 0x00000020ULL ... 0x00000030ULL | |
399 | #define AMD_EVENT_DC 0x00000040ULL ... 0x00000050ULL | |
400 | #define AMD_EVENT_CU 0x00000060ULL ... 0x00000070ULL | |
401 | #define AMD_EVENT_IC_DE 0x00000080ULL ... 0x00000090ULL | |
402 | #define AMD_EVENT_EX_LS 0x000000C0ULL | |
403 | #define AMD_EVENT_DE 0x000000D0ULL | |
404 | #define AMD_EVENT_NB 0x000000E0ULL ... 0x000000F0ULL | |
405 | ||
406 | /* | |
407 | * AMD family 15h event code/PMC mappings: | |
408 | * | |
409 | * type = event_code & 0x0F0: | |
410 | * | |
411 | * 0x000 FP PERF_CTL[5:3] | |
412 | * 0x010 FP PERF_CTL[5:3] | |
413 | * 0x020 LS PERF_CTL[5:0] | |
414 | * 0x030 LS PERF_CTL[5:0] | |
415 | * 0x040 DC PERF_CTL[5:0] | |
416 | * 0x050 DC PERF_CTL[5:0] | |
417 | * 0x060 CU PERF_CTL[2:0] | |
418 | * 0x070 CU PERF_CTL[2:0] | |
419 | * 0x080 IC/DE PERF_CTL[2:0] | |
420 | * 0x090 IC/DE PERF_CTL[2:0] | |
421 | * 0x0A0 --- | |
422 | * 0x0B0 --- | |
423 | * 0x0C0 EX/LS PERF_CTL[5:0] | |
424 | * 0x0D0 DE PERF_CTL[2:0] | |
425 | * 0x0E0 NB NB_PERF_CTL[3:0] | |
426 | * 0x0F0 NB NB_PERF_CTL[3:0] | |
427 | * | |
428 | * Exceptions: | |
429 | * | |
855357a2 | 430 | * 0x000 FP PERF_CTL[3], PERF_CTL[5:3] (*) |
4979d272 | 431 | * 0x003 FP PERF_CTL[3] |
855357a2 | 432 | * 0x004 FP PERF_CTL[3], PERF_CTL[5:3] (*) |
4979d272 RR |
433 | * 0x00B FP PERF_CTL[3] |
434 | * 0x00D FP PERF_CTL[3] | |
435 | * 0x023 DE PERF_CTL[2:0] | |
436 | * 0x02D LS PERF_CTL[3] | |
437 | * 0x02E LS PERF_CTL[3,0] | |
438 | * 0x043 CU PERF_CTL[2:0] | |
439 | * 0x045 CU PERF_CTL[2:0] | |
440 | * 0x046 CU PERF_CTL[2:0] | |
441 | * 0x054 CU PERF_CTL[2:0] | |
442 | * 0x055 CU PERF_CTL[2:0] | |
443 | * 0x08F IC PERF_CTL[0] | |
444 | * 0x187 DE PERF_CTL[0] | |
445 | * 0x188 DE PERF_CTL[0] | |
446 | * 0x0DB EX PERF_CTL[5:0] | |
447 | * 0x0DC LS PERF_CTL[5:0] | |
448 | * 0x0DD LS PERF_CTL[5:0] | |
449 | * 0x0DE LS PERF_CTL[5:0] | |
450 | * 0x0DF LS PERF_CTL[5:0] | |
451 | * 0x1D6 EX PERF_CTL[5:0] | |
452 | * 0x1D8 EX PERF_CTL[5:0] | |
855357a2 RR |
453 | * |
454 | * (*) depending on the umask all FPU counters may be used | |
4979d272 RR |
455 | */ |
456 | ||
457 | static struct event_constraint amd_f15_PMC0 = EVENT_CONSTRAINT(0, 0x01, 0); | |
458 | static struct event_constraint amd_f15_PMC20 = EVENT_CONSTRAINT(0, 0x07, 0); | |
459 | static struct event_constraint amd_f15_PMC3 = EVENT_CONSTRAINT(0, 0x08, 0); | |
460 | static struct event_constraint amd_f15_PMC30 = EVENT_CONSTRAINT(0, 0x09, 0); | |
461 | static struct event_constraint amd_f15_PMC50 = EVENT_CONSTRAINT(0, 0x3F, 0); | |
462 | static struct event_constraint amd_f15_PMC53 = EVENT_CONSTRAINT(0, 0x38, 0); | |
463 | ||
464 | static struct event_constraint * | |
465 | amd_get_event_constraints_f15h(struct cpu_hw_events *cpuc, struct perf_event *event) | |
466 | { | |
855357a2 RR |
467 | struct hw_perf_event *hwc = &event->hw; |
468 | unsigned int event_code = amd_get_event_code(hwc); | |
4979d272 RR |
469 | |
470 | switch (event_code & AMD_EVENT_TYPE_MASK) { | |
471 | case AMD_EVENT_FP: | |
472 | switch (event_code) { | |
855357a2 RR |
473 | case 0x000: |
474 | if (!(hwc->config & 0x0000F000ULL)) | |
475 | break; | |
476 | if (!(hwc->config & 0x00000F00ULL)) | |
477 | break; | |
478 | return &amd_f15_PMC3; | |
479 | case 0x004: | |
480 | if (hweight_long(hwc->config & ARCH_PERFMON_EVENTSEL_UMASK) <= 1) | |
481 | break; | |
482 | return &amd_f15_PMC3; | |
4979d272 RR |
483 | case 0x003: |
484 | case 0x00B: | |
485 | case 0x00D: | |
486 | return &amd_f15_PMC3; | |
4979d272 | 487 | } |
855357a2 | 488 | return &amd_f15_PMC53; |
4979d272 RR |
489 | case AMD_EVENT_LS: |
490 | case AMD_EVENT_DC: | |
491 | case AMD_EVENT_EX_LS: | |
492 | switch (event_code) { | |
493 | case 0x023: | |
494 | case 0x043: | |
495 | case 0x045: | |
496 | case 0x046: | |
497 | case 0x054: | |
498 | case 0x055: | |
499 | return &amd_f15_PMC20; | |
500 | case 0x02D: | |
501 | return &amd_f15_PMC3; | |
502 | case 0x02E: | |
503 | return &amd_f15_PMC30; | |
504 | default: | |
505 | return &amd_f15_PMC50; | |
506 | } | |
507 | case AMD_EVENT_CU: | |
508 | case AMD_EVENT_IC_DE: | |
509 | case AMD_EVENT_DE: | |
510 | switch (event_code) { | |
511 | case 0x08F: | |
512 | case 0x187: | |
513 | case 0x188: | |
514 | return &amd_f15_PMC0; | |
515 | case 0x0DB ... 0x0DF: | |
516 | case 0x1D6: | |
517 | case 0x1D8: | |
518 | return &amd_f15_PMC50; | |
519 | default: | |
520 | return &amd_f15_PMC20; | |
521 | } | |
522 | case AMD_EVENT_NB: | |
523 | /* not yet implemented */ | |
524 | return &emptyconstraint; | |
525 | default: | |
526 | return &emptyconstraint; | |
527 | } | |
528 | } | |
529 | ||
530 | static __initconst const struct x86_pmu amd_pmu_f15h = { | |
531 | .name = "AMD Family 15h", | |
532 | .handle_irq = x86_pmu_handle_irq, | |
533 | .disable_all = x86_pmu_disable_all, | |
534 | .enable_all = x86_pmu_enable_all, | |
535 | .enable = x86_pmu_enable_event, | |
536 | .disable = x86_pmu_disable_event, | |
537 | .hw_config = amd_pmu_hw_config, | |
538 | .schedule_events = x86_schedule_events, | |
539 | .eventsel = MSR_F15H_PERF_CTL, | |
540 | .perfctr = MSR_F15H_PERF_CTR, | |
541 | .event_map = amd_pmu_event_map, | |
542 | .max_events = ARRAY_SIZE(amd_perfmon_event_map), | |
543 | .num_counters = 6, | |
544 | .cntval_bits = 48, | |
545 | .cntval_mask = (1ULL << 48) - 1, | |
546 | .apic = 1, | |
547 | /* use highest bit to detect overflow */ | |
548 | .max_period = (1ULL << 47) - 1, | |
549 | .get_event_constraints = amd_get_event_constraints_f15h, | |
550 | /* nortbridge counters not yet implemented: */ | |
551 | #if 0 | |
552 | .put_event_constraints = amd_put_event_constraints, | |
553 | ||
554 | .cpu_prepare = amd_pmu_cpu_prepare, | |
555 | .cpu_starting = amd_pmu_cpu_starting, | |
556 | .cpu_dead = amd_pmu_cpu_dead, | |
557 | #endif | |
558 | }; | |
559 | ||
f22f54f4 PZ |
560 | static __init int amd_pmu_init(void) |
561 | { | |
562 | /* Performance-monitoring supported from K7 and later: */ | |
563 | if (boot_cpu_data.x86 < 6) | |
564 | return -ENODEV; | |
565 | ||
4979d272 RR |
566 | /* |
567 | * If core performance counter extensions exists, it must be | |
568 | * family 15h, otherwise fail. See x86_pmu_addr_offset(). | |
569 | */ | |
570 | switch (boot_cpu_data.x86) { | |
571 | case 0x15: | |
572 | if (!cpu_has_perfctr_core) | |
573 | return -ENODEV; | |
574 | x86_pmu = amd_pmu_f15h; | |
575 | break; | |
576 | default: | |
577 | if (cpu_has_perfctr_core) | |
578 | return -ENODEV; | |
579 | x86_pmu = amd_pmu; | |
580 | break; | |
581 | } | |
f22f54f4 PZ |
582 | |
583 | /* Events are common for all AMDs */ | |
584 | memcpy(hw_cache_event_ids, amd_hw_cache_event_ids, | |
585 | sizeof(hw_cache_event_ids)); | |
586 | ||
f22f54f4 PZ |
587 | return 0; |
588 | } | |
589 | ||
590 | #else /* CONFIG_CPU_SUP_AMD */ | |
591 | ||
592 | static int amd_pmu_init(void) | |
593 | { | |
594 | return 0; | |
595 | } | |
596 | ||
f22f54f4 | 597 | #endif |