xref: /freebsd/sys/dev/hwpmc/hwpmc_e500.c (revision f5463265955b829775bbb32e1fd0bc11dafc36ce)
1 /*-
2  * Copyright (c) 2015 Justin Hibbits
3  * Copyright (c) 2005, Joseph Koshy
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  *
27  */
28 
29 #include <sys/param.h>
30 #include <sys/pmc.h>
31 #include <sys/pmckern.h>
32 #include <sys/systm.h>
33 
34 #include <machine/pmc_mdep.h>
35 #include <machine/cpu.h>
36 
37 #include <ddb/ddb.h>
38 
39 #include "hwpmc_powerpc.h"
40 
41 struct e500_event_code_map {
42 	enum pmc_event	pe_ev;       /* enum value */
43 	uint8_t         pe_counter_mask;  /* Which counter this can be counted in. */
44 	uint8_t		pe_code;     /* numeric code */
45 	uint8_t		pe_cpu;	     /* e500 core (v1,v2,mc), mask */
46 };
47 
48 #define E500_MAX_PMCS	4
49 #define PMC_PPC_MASK0	0
50 #define PMC_PPC_MASK1	1
51 #define PMC_PPC_MASK2	2
52 #define PMC_PPC_MASK3	3
53 #define PMC_PPC_MASK_ALL	0x0f
54 #define PMC_PPC_E500V1		1
55 #define PMC_PPC_E500V2		2
56 #define PMC_PPC_E500MC		4
57 #define PMC_PPC_E500_ANY	7
58 #define PMC_E500_EVENT(id, mask, number, core) \
59 	[PMC_EV_E500_##id - PMC_EV_E500_FIRST] = \
60 	    { .pe_ev = PMC_EV_E500_##id, .pe_counter_mask = mask, \
61 	      .pe_code = number, .pe_cpu = core }
62 #define PMC_E500MC_ONLY(id, number) \
63 	PMC_E500_EVENT(id, PMC_PPC_MASK_ALL, number, PMC_PPC_E500MC)
64 #define PMC_E500_COMMON(id, number) \
65 	PMC_E500_EVENT(id, PMC_PPC_MASK_ALL, number, PMC_PPC_E500_ANY)
66 
67 static struct e500_event_code_map e500_event_codes[] = {
68 	PMC_E500_COMMON(CYCLES, 1),
69 	PMC_E500_COMMON(INSTR_COMPLETED, 2),
70 	PMC_E500_COMMON(UOPS_COMPLETED, 3),
71 	PMC_E500_COMMON(INSTR_FETCHED, 4),
72 	PMC_E500_COMMON(UOPS_DECODED, 5),
73 	PMC_E500_COMMON(PM_EVENT_TRANSITIONS, 6),
74 	PMC_E500_COMMON(PM_EVENT_CYCLES, 7),
75 	PMC_E500_COMMON(BRANCH_INSTRS_COMPLETED, 8),
76 	PMC_E500_COMMON(LOAD_UOPS_COMPLETED, 9),
77 	PMC_E500_COMMON(STORE_UOPS_COMPLETED, 10),
78 	PMC_E500_COMMON(CQ_REDIRECTS, 11),
79 	PMC_E500_COMMON(BRANCHES_FINISHED, 12),
80 	PMC_E500_COMMON(TAKEN_BRANCHES_FINISHED, 13),
81 	PMC_E500_COMMON(FINISHED_UNCOND_BRANCHES_MISS_BTB, 14),
82 	PMC_E500_COMMON(BRANCH_MISPRED, 15),
83 	PMC_E500_COMMON(BTB_BRANCH_MISPRED_FROM_DIRECTION, 16),
84 	PMC_E500_COMMON(BTB_HITS_PSEUDO_HITS, 17),
85 	PMC_E500_COMMON(CYCLES_DECODE_STALLED, 18),
86 	PMC_E500_COMMON(CYCLES_ISSUE_STALLED, 19),
87 	PMC_E500_COMMON(CYCLES_BRANCH_ISSUE_STALLED, 20),
88 	PMC_E500_COMMON(CYCLES_SU1_SCHED_STALLED, 21),
89 	PMC_E500_COMMON(CYCLES_SU2_SCHED_STALLED, 22),
90 	PMC_E500_COMMON(CYCLES_MU_SCHED_STALLED, 23),
91 	PMC_E500_COMMON(CYCLES_LRU_SCHED_STALLED, 24),
92 	PMC_E500_COMMON(CYCLES_BU_SCHED_STALLED, 25),
93 	PMC_E500_COMMON(TOTAL_TRANSLATED, 26),
94 	PMC_E500_COMMON(LOADS_TRANSLATED, 27),
95 	PMC_E500_COMMON(STORES_TRANSLATED, 28),
96 	PMC_E500_COMMON(TOUCHES_TRANSLATED, 29),
97 	PMC_E500_COMMON(CACHEOPS_TRANSLATED, 30),
98 	PMC_E500_COMMON(CACHE_INHIBITED_ACCESS_TRANSLATED, 31),
99 	PMC_E500_COMMON(GUARDED_LOADS_TRANSLATED, 32),
100 	PMC_E500_COMMON(WRITE_THROUGH_STORES_TRANSLATED, 33),
101 	PMC_E500_COMMON(MISALIGNED_LOAD_STORE_ACCESS_TRANSLATED, 34),
102 	PMC_E500_COMMON(TOTAL_ALLOCATED_TO_DLFB, 35),
103 	PMC_E500_COMMON(LOADS_TRANSLATED_ALLOCATED_TO_DLFB, 36),
104 	PMC_E500_COMMON(STORES_COMPLETED_ALLOCATED_TO_DLFB, 37),
105 	PMC_E500_COMMON(TOUCHES_TRANSLATED_ALLOCATED_TO_DLFB, 38),
106 	PMC_E500_COMMON(STORES_COMPLETED, 39),
107 	PMC_E500_COMMON(DATA_L1_CACHE_LOCKS, 40),
108 	PMC_E500_COMMON(DATA_L1_CACHE_RELOADS, 41),
109 	PMC_E500_COMMON(DATA_L1_CACHE_CASTOUTS, 42),
110 	PMC_E500_COMMON(LOAD_MISS_DLFB_FULL, 43),
111 	PMC_E500_COMMON(LOAD_MISS_LDQ_FULL, 44),
112 	PMC_E500_COMMON(LOAD_GUARDED_MISS, 45),
113 	PMC_E500_COMMON(STORE_TRANSLATE_WHEN_QUEUE_FULL, 46),
114 	PMC_E500_COMMON(ADDRESS_COLLISION, 47),
115 	PMC_E500_COMMON(DATA_MMU_MISS, 48),
116 	PMC_E500_COMMON(DATA_MMU_BUSY, 49),
117 	PMC_E500_COMMON(PART2_MISALIGNED_CACHE_ACCESS, 50),
118 	PMC_E500_COMMON(LOAD_MISS_DLFB_FULL_CYCLES, 51),
119 	PMC_E500_COMMON(LOAD_MISS_LDQ_FULL_CYCLES, 52),
120 	PMC_E500_COMMON(LOAD_GUARDED_MISS_CYCLES, 53),
121 	PMC_E500_COMMON(STORE_TRANSLATE_WHEN_QUEUE_FULL_CYCLES, 54),
122 	PMC_E500_COMMON(ADDRESS_COLLISION_CYCLES, 55),
123 	PMC_E500_COMMON(DATA_MMU_MISS_CYCLES, 56),
124 	PMC_E500_COMMON(DATA_MMU_BUSY_CYCLES, 57),
125 	PMC_E500_COMMON(PART2_MISALIGNED_CACHE_ACCESS_CYCLES, 58),
126 	PMC_E500_COMMON(INSTR_L1_CACHE_LOCKS, 59),
127 	PMC_E500_COMMON(INSTR_L1_CACHE_RELOADS, 60),
128 	PMC_E500_COMMON(INSTR_L1_CACHE_FETCHES, 61),
129 	PMC_E500_COMMON(INSTR_MMU_TLB4K_RELOADS, 62),
130 	PMC_E500_COMMON(INSTR_MMU_VSP_RELOADS, 63),
131 	PMC_E500_COMMON(DATA_MMU_TLB4K_RELOADS, 64),
132 	PMC_E500_COMMON(DATA_MMU_VSP_RELOADS, 65),
133 	PMC_E500_COMMON(L2MMU_MISSES, 66),
134 	PMC_E500_COMMON(BIU_MASTER_REQUESTS, 67),
135 	PMC_E500_COMMON(BIU_MASTER_INSTR_SIDE_REQUESTS, 68),
136 	PMC_E500_COMMON(BIU_MASTER_DATA_SIDE_REQUESTS, 69),
137 	PMC_E500_COMMON(BIU_MASTER_DATA_SIDE_CASTOUT_REQUESTS, 70),
138 	PMC_E500_COMMON(BIU_MASTER_RETRIES, 71),
139 	PMC_E500_COMMON(SNOOP_REQUESTS, 72),
140 	PMC_E500_COMMON(SNOOP_HITS, 73),
141 	PMC_E500_COMMON(SNOOP_PUSHES, 74),
142 	PMC_E500_COMMON(SNOOP_RETRIES, 75),
143 	PMC_E500_EVENT(DLFB_LOAD_MISS_CYCLES, PMC_PPC_MASK0|PMC_PPC_MASK1,
144 	    76, PMC_PPC_E500_ANY),
145 	PMC_E500_EVENT(ILFB_FETCH_MISS_CYCLES, PMC_PPC_MASK0|PMC_PPC_MASK1,
146 	    77, PMC_PPC_E500_ANY),
147 	PMC_E500_EVENT(EXT_INPU_INTR_LATENCY_CYCLES, PMC_PPC_MASK0|PMC_PPC_MASK1,
148 	    78, PMC_PPC_E500_ANY),
149 	PMC_E500_EVENT(CRIT_INPUT_INTR_LATENCY_CYCLES, PMC_PPC_MASK0|PMC_PPC_MASK1,
150 	    79, PMC_PPC_E500_ANY),
151 	PMC_E500_EVENT(EXT_INPUT_INTR_PENDING_LATENCY_CYCLES,
152 	    PMC_PPC_MASK0|PMC_PPC_MASK1, 80, PMC_PPC_E500_ANY),
153 	PMC_E500_EVENT(CRIT_INPUT_INTR_PENDING_LATENCY_CYCLES,
154 	    PMC_PPC_MASK0|PMC_PPC_MASK1, 81, PMC_PPC_E500_ANY),
155 	PMC_E500_COMMON(PMC0_OVERFLOW, 82),
156 	PMC_E500_COMMON(PMC1_OVERFLOW, 83),
157 	PMC_E500_COMMON(PMC2_OVERFLOW, 84),
158 	PMC_E500_COMMON(PMC3_OVERFLOW, 85),
159 	PMC_E500_COMMON(INTERRUPTS_TAKEN, 86),
160 	PMC_E500_COMMON(EXT_INPUT_INTR_TAKEN, 87),
161 	PMC_E500_COMMON(CRIT_INPUT_INTR_TAKEN, 88),
162 	PMC_E500_COMMON(SYSCALL_TRAP_INTR, 89),
163 	PMC_E500_EVENT(TLB_BIT_TRANSITIONS, PMC_PPC_MASK_ALL, 90,
164 	    PMC_PPC_E500V2 | PMC_PPC_E500MC),
165 	PMC_E500MC_ONLY(L2_LINEFILL_BUFFER, 91),
166 	PMC_E500MC_ONLY(LV2_VS, 92),
167 	PMC_E500MC_ONLY(CASTOUTS_RELEASED, 93),
168 	PMC_E500MC_ONLY(INTV_ALLOCATIONS, 94),
169 	PMC_E500MC_ONLY(DLFB_RETRIES_TO_MBAR, 95),
170 	PMC_E500MC_ONLY(STORE_RETRIES, 96),
171 	PMC_E500MC_ONLY(STASH_L1_HITS, 97),
172 	PMC_E500MC_ONLY(STASH_L2_HITS, 98),
173 	PMC_E500MC_ONLY(STASH_BUSY_1, 99),
174 	PMC_E500MC_ONLY(STASH_BUSY_2, 100),
175 	PMC_E500MC_ONLY(STASH_BUSY_3, 101),
176 	PMC_E500MC_ONLY(STASH_HITS, 102),
177 	PMC_E500MC_ONLY(STASH_HIT_DLFB, 103),
178 	PMC_E500MC_ONLY(STASH_REQUESTS, 106),
179 	PMC_E500MC_ONLY(STASH_REQUESTS_L1, 107),
180 	PMC_E500MC_ONLY(STASH_REQUESTS_L2, 108),
181 	PMC_E500MC_ONLY(STALLS_NO_CAQ_OR_COB, 109),
182 	PMC_E500MC_ONLY(L2_CACHE_ACCESSES, 110),
183 	PMC_E500MC_ONLY(L2_HIT_CACHE_ACCESSES, 111),
184 	PMC_E500MC_ONLY(L2_CACHE_DATA_ACCESSES, 112),
185 	PMC_E500MC_ONLY(L2_CACHE_DATA_HITS, 113),
186 	PMC_E500MC_ONLY(L2_CACHE_INSTR_ACCESSES, 114),
187 	PMC_E500MC_ONLY(L2_CACHE_INSTR_HITS, 115),
188 	PMC_E500MC_ONLY(L2_CACHE_ALLOCATIONS, 116),
189 	PMC_E500MC_ONLY(L2_CACHE_DATA_ALLOCATIONS, 117),
190 	PMC_E500MC_ONLY(L2_CACHE_DIRTY_DATA_ALLOCATIONS, 118),
191 	PMC_E500MC_ONLY(L2_CACHE_INSTR_ALLOCATIONS, 119),
192 	PMC_E500MC_ONLY(L2_CACHE_UPDATES, 120),
193 	PMC_E500MC_ONLY(L2_CACHE_CLEAN_UPDATES, 121),
194 	PMC_E500MC_ONLY(L2_CACHE_DIRTY_UPDATES, 122),
195 	PMC_E500MC_ONLY(L2_CACHE_CLEAN_REDUNDANT_UPDATES, 123),
196 	PMC_E500MC_ONLY(L2_CACHE_DIRTY_REDUNDANT_UPDATES, 124),
197 	PMC_E500MC_ONLY(L2_CACHE_LOCKS, 125),
198 	PMC_E500MC_ONLY(L2_CACHE_CASTOUTS, 126),
199 	PMC_E500MC_ONLY(L2_CACHE_DATA_DIRTY_HITS, 127),
200 	PMC_E500MC_ONLY(INSTR_LFB_WENT_HIGH_PRIORITY, 128),
201 	PMC_E500MC_ONLY(SNOOP_THROTTLING_TURNED_ON, 129),
202 	PMC_E500MC_ONLY(L2_CLEAN_LINE_INVALIDATIONS, 130),
203 	PMC_E500MC_ONLY(L2_INCOHERENT_LINE_INVALIDATIONS, 131),
204 	PMC_E500MC_ONLY(L2_COHERENT_LINE_INVALIDATIONS, 132),
205 	PMC_E500MC_ONLY(COHERENT_LOOKUP_MISS_DUE_TO_VALID_BUT_INCOHERENT_MATCHES, 133),
206 	PMC_E500MC_ONLY(IAC1S_DETECTED, 140),
207 	PMC_E500MC_ONLY(IAC2S_DETECTED, 141),
208 	PMC_E500MC_ONLY(DAC1S_DTECTED, 144),
209 	PMC_E500MC_ONLY(DAC2S_DTECTED, 145),
210 	PMC_E500MC_ONLY(DVT0_DETECTED, 148),
211 	PMC_E500MC_ONLY(DVT1_DETECTED, 149),
212 	PMC_E500MC_ONLY(DVT2_DETECTED, 150),
213 	PMC_E500MC_ONLY(DVT3_DETECTED, 151),
214 	PMC_E500MC_ONLY(DVT4_DETECTED, 152),
215 	PMC_E500MC_ONLY(DVT5_DETECTED, 153),
216 	PMC_E500MC_ONLY(DVT6_DETECTED, 154),
217 	PMC_E500MC_ONLY(DVT7_DETECTED, 155),
218 	PMC_E500MC_ONLY(CYCLES_COMPLETION_STALLED_NEXUS_FIFO_FULL, 156),
219 	PMC_E500MC_ONLY(FPU_DOUBLE_PUMP, 160),
220 	PMC_E500MC_ONLY(FPU_FINISH, 161),
221 	PMC_E500MC_ONLY(FPU_DIVIDE_CYCLES, 162),
222 	PMC_E500MC_ONLY(FPU_DENORM_INPUT_CYCLES, 163),
223 	PMC_E500MC_ONLY(FPU_RESULT_STALL_CYCLES, 164),
224 	PMC_E500MC_ONLY(FPU_FPSCR_FULL_STALL, 165),
225 	PMC_E500MC_ONLY(FPU_PIPE_SYNC_STALLS, 166),
226 	PMC_E500MC_ONLY(FPU_INPUT_DATA_STALLS, 167),
227 	PMC_E500MC_ONLY(DECORATED_LOADS, 176),
228 	PMC_E500MC_ONLY(DECORATED_STORES, 177),
229 	PMC_E500MC_ONLY(LOAD_RETRIES, 178),
230 	PMC_E500MC_ONLY(STWCX_SUCCESSES, 179),
231 	PMC_E500MC_ONLY(STWCX_FAILURES, 180),
232 };
233 
234 static pmc_value_t
235 e500_pmcn_read(unsigned int pmc)
236 {
237 	switch (pmc) {
238 	case 0:
239 		return (mfpmr(PMR_PMC0));
240 	case 1:
241 		return (mfpmr(PMR_PMC1));
242 	case 2:
243 		return (mfpmr(PMR_PMC2));
244 	case 3:
245 		return (mfpmr(PMR_PMC3));
246 	default:
247 		panic("Invalid PMC number: %d\n", pmc);
248 	}
249 }
250 
251 static void
252 e500_pmcn_write(unsigned int pmc, uint32_t val)
253 {
254 	switch (pmc) {
255 	case 0:
256 		mtpmr(PMR_PMC0, val);
257 		break;
258 	case 1:
259 		mtpmr(PMR_PMC1, val);
260 		break;
261 	case 2:
262 		mtpmr(PMR_PMC2, val);
263 		break;
264 	case 3:
265 		mtpmr(PMR_PMC3, val);
266 		break;
267 	default:
268 		panic("Invalid PMC number: %d\n", pmc);
269 	}
270 }
271 
272 static void
273 e500_set_pmc(int cpu, int ri, int config)
274 {
275 	struct pmc *pm;
276 	struct pmc_hw *phw;
277 	register_t pmc_pmlc;
278 
279 	phw    = &powerpc_pcpu[cpu]->pc_ppcpmcs[ri];
280 	pm     = phw->phw_pmc;
281 	config &= ~POWERPC_PMC_ENABLE;
282 
283 	if (config != PMCN_NONE) {
284 		if (PMC_IS_SAMPLING_MODE(PMC_TO_MODE(pm)))
285 			config |= PMLCax_CE;
286 
287 		/* Enable the PMC. */
288 		switch (ri) {
289 		case 0:
290 			mtpmr(PMR_PMLCa0, config);
291 			break;
292 		case 1:
293 			mtpmr(PMR_PMLCa1, config);
294 			break;
295 		case 2:
296 			mtpmr(PMR_PMLCa2, config);
297 			break;
298 		case 3:
299 			mtpmr(PMR_PMLCa3, config);
300 			break;
301 		}
302 	} else {
303 		/* Disable the PMC. */
304 		switch (ri) {
305 		case 0:
306 			pmc_pmlc = mfpmr(PMR_PMLCa0);
307 			pmc_pmlc |= PMLCax_FC;
308 			mtpmr(PMR_PMLCa0, pmc_pmlc);
309 			break;
310 		case 1:
311 			pmc_pmlc = mfpmr(PMR_PMLCa1);
312 			pmc_pmlc |= PMLCax_FC;
313 			mtpmr(PMR_PMLCa1, pmc_pmlc);
314 			break;
315 		case 2:
316 			pmc_pmlc = mfpmr(PMR_PMLCa2);
317 			pmc_pmlc |= PMLCax_FC;
318 			mtpmr(PMR_PMLCa2, pmc_pmlc);
319 			break;
320 		case 3:
321 			pmc_pmlc = mfpmr(PMR_PMLCa3);
322 			pmc_pmlc |= PMLCax_FC;
323 			mtpmr(PMR_PMLCa3, pmc_pmlc);
324 			break;
325 		}
326 	}
327 }
328 
329 static int
330 e500_pcpu_init(struct pmc_mdep *md, int cpu)
331 {
332 	int i;
333 
334 	powerpc_pcpu_init(md, cpu);
335 
336 	/* Freeze all counters. */
337 	mtpmr(PMR_PMGC0, PMGC_FAC | PMGC_PMIE | PMGC_FCECE);
338 
339 	for (i = 0; i < E500_MAX_PMCS; i++)
340 		/* Initialize the PMC to stopped */
341 		e500_set_pmc(cpu, i, PMCN_NONE);
342 
343 	/* Unfreeze global register. */
344 	mtpmr(PMR_PMGC0, PMGC_PMIE | PMGC_FCECE);
345 
346 	return (0);
347 }
348 
349 static int
350 e500_pcpu_fini(struct pmc_mdep *md, int cpu)
351 {
352 	uint32_t pmgc0 = mfpmr(PMR_PMGC0);
353 
354 	pmgc0 |= PMGC_FAC;
355 	mtpmr(PMR_PMGC0, pmgc0);
356 	mtmsr(mfmsr() & ~PSL_PMM);
357 
358 	return (powerpc_pcpu_fini(md, cpu));
359 }
360 
361 static int
362 e500_allocate_pmc(int cpu, int ri, struct pmc *pm,
363   const struct pmc_op_pmcallocate *a)
364 {
365 	enum pmc_event pe;
366 	uint32_t caps, config, counter;
367 	struct e500_event_code_map *ev;
368 	uint16_t vers;
369 	uint8_t pe_cpu_mask;
370 
371 	KASSERT(cpu >= 0 && cpu < pmc_cpu_max(),
372 	    ("[powerpc,%d] illegal CPU value %d", __LINE__, cpu));
373 	KASSERT(ri >= 0 && ri < E500_MAX_PMCS,
374 	    ("[powerpc,%d] illegal row index %d", __LINE__, ri));
375 
376 	if (a->pm_class != PMC_CLASS_E500)
377 		return (EINVAL);
378 
379 	caps = a->pm_caps;
380 
381 	pe = a->pm_ev;
382 	config = PMLCax_FCS | PMLCax_FCU |
383 	    PMLCax_FCM1 | PMLCax_FCM1;
384 
385 	if (pe < PMC_EV_E500_FIRST || pe > PMC_EV_E500_LAST)
386 		return (EINVAL);
387 
388 	ev = &e500_event_codes[pe-PMC_EV_E500_FIRST];
389 	if (ev->pe_code == 0)
390 		return (EINVAL);
391 
392 	vers = mfpvr() >> 16;
393 	switch (vers) {
394 	case FSL_E500v1:
395 		pe_cpu_mask = ev->pe_cpu & PMC_PPC_E500V1;
396 		break;
397 	case FSL_E500v2:
398 		pe_cpu_mask = ev->pe_cpu & PMC_PPC_E500V2;
399 		break;
400 	case FSL_E500mc:
401 	case FSL_E5500:
402 		pe_cpu_mask = ev->pe_cpu & PMC_PPC_E500MC;
403 		break;
404 	}
405 	if (pe_cpu_mask == 0)
406 		return (EINVAL);
407 
408 	config |= PMLCax_EVENT(ev->pe_code);
409 	counter =  ev->pe_counter_mask;
410 	if ((counter & (1 << ri)) == 0)
411 		return (EINVAL);
412 
413 	if (caps & PMC_CAP_SYSTEM)
414 		config &= ~PMLCax_FCS;
415 	if (caps & PMC_CAP_USER)
416 		config &= ~PMLCax_FCU;
417 	if ((caps & (PMC_CAP_USER | PMC_CAP_SYSTEM)) == 0)
418 		config &= ~(PMLCax_FCS|PMLCax_FCU);
419 
420 	pm->pm_md.pm_powerpc.pm_powerpc_evsel = config;
421 
422 	PMCDBG2(MDP,ALL,2,"powerpc-allocate ri=%d -> config=0x%x", ri, config);
423 
424 	return 0;
425 }
426 
427 static void
428 e500_resume_pmc(bool ie)
429 {
430 	/* Re-enable PERF exceptions. */
431 	if (ie)
432 		mtpmr(PMR_PMGC0, (mfpmr(PMR_PMGC0) & ~PMGC_FAC) | PMGC_PMIE);
433 }
434 
435 int
436 pmc_e500_initialize(struct pmc_mdep *pmc_mdep)
437 {
438 	struct pmc_classdep *pcd;
439 
440 	pmc_mdep->pmd_cputype = PMC_CPU_PPC_E500;
441 
442 	pcd = &pmc_mdep->pmd_classdep[PMC_MDEP_CLASS_INDEX_POWERPC];
443 	pcd->pcd_caps  = POWERPC_PMC_CAPS;
444 	pcd->pcd_class = PMC_CLASS_E500;
445 	pcd->pcd_num   = E500_MAX_PMCS;
446 	pcd->pcd_ri    = pmc_mdep->pmd_npmc;
447 	pcd->pcd_width = 32;
448 
449 	pcd->pcd_allocate_pmc   = e500_allocate_pmc;
450 	pcd->pcd_config_pmc     = powerpc_config_pmc;
451 	pcd->pcd_pcpu_fini      = e500_pcpu_fini;
452 	pcd->pcd_pcpu_init      = e500_pcpu_init;
453 	pcd->pcd_describe       = powerpc_describe;
454 	pcd->pcd_get_config     = powerpc_get_config;
455 	pcd->pcd_read_pmc       = powerpc_read_pmc;
456 	pcd->pcd_release_pmc    = powerpc_release_pmc;
457 	pcd->pcd_start_pmc      = powerpc_start_pmc;
458 	pcd->pcd_stop_pmc       = powerpc_stop_pmc;
459 	pcd->pcd_write_pmc      = powerpc_write_pmc;
460 
461 	pmc_mdep->pmd_npmc   += E500_MAX_PMCS;
462 	pmc_mdep->pmd_intr   =  powerpc_pmc_intr;
463 
464 	ppc_max_pmcs = E500_MAX_PMCS;
465 
466 	powerpc_set_pmc = e500_set_pmc;
467 	powerpc_pmcn_read = e500_pmcn_read;
468 	powerpc_pmcn_write = e500_pmcn_write;
469 	powerpc_resume_pmc = e500_resume_pmc;
470 
471 	return (0);
472 }
473