1 // SPDX-License-Identifier: GPL-2.0-or-later
5  * Copyright 2008-2009 Paul Mackerras, IBM Corporation.
18 #define PM_PMC_SH	20	/* PMC number (1-based) for direct events */
38 #define MMCR1_TTMSEL_SH(n)	(MMCR1_TTM0SEL_SH - (n) * 4)
48 #define MMCR1_PMCSEL_SH(n)	(MMCR1_PMC1SEL_SH - (n) * 8)
58  *   4 = add/and event (PMC1 -> bits 0 & 4),
59  *   5 = add/and event (PMC1 -> bits 1 & 5),
60  *   6 = add/and event (PMC1 -> bits 2 & 6),
61  *   7 = add/and event (PMC1 -> bits 3 & 7).
123 	0x000000c0,	/* VMX set 2: byte 0 bits 4-7 */
148 	bit = -1;  in power6_marked_instr_event()
151 		if (pmc == 0 || !(ptype & (1 << (pmc - 1))))  in power6_marked_instr_event()
159 			bit = ptype ^ (pmc - 1);  in power6_marked_instr_event()
163 	if (!(event & PM_BUSEVENT_MSK) || bit == -1)  in power6_marked_instr_event()
187 		return -1;  in p6_compute_mmcr()
191 			if (pmc_inuse & (1 << (pmc - 1)))  in p6_compute_mmcr()
192 				return -1;	/* collision! */  in p6_compute_mmcr()
193 			pmc_inuse |= 1 << (pmc - 1);  in p6_compute_mmcr()
200 			--pmc;  in p6_compute_mmcr()
207 				return -1;  in p6_compute_mmcr()
218 				return -1;  in p6_compute_mmcr()
226 					return -1;  in p6_compute_mmcr()
249 	mmcr->mmcr0 = 0;  in p6_compute_mmcr()
251 		mmcr->mmcr0 = MMCR0_PMC1CE;  in p6_compute_mmcr()
253 		mmcr->mmcr0 |= MMCR0_PMCjCE;  in p6_compute_mmcr()
254 	mmcr->mmcr1 = mmcr1;  in p6_compute_mmcr()
255 	mmcr->mmcra = mmcra;  in p6_compute_mmcr()
262  *	0-1	add field: number of uses of PMC1 (max 1)
263  *	2-3, 4-5, 6-7, 8-9, 10-11: ditto for PMC2, 3, 4, 5, 6
264  *	12-15	add field: number of uses of PMC1-4 (max 4)
265  *	16-19	select field: unit on byte 0 of event bus
266  *	20-23, 24-27, 28-31 ditto for bytes 1, 2, 3
267  *	32-34	select field: nest (subunit) event selector
278 			return -1;  in p6_get_constraint()
279 		sh = (pmc - 1) * 2;  in p6_get_constraint()
285 		sh = byte * 4 + (16 - PM_UNIT_SH);  in p6_get_constraint()
295 		mask  |= 0x8000;	/* add field for count of PMC1-4 uses */  in p6_get_constraint()
355 	int hi = ARRAY_SIZE(presorted_event_table) - 1;  in find_alternatives_list()
359 		int mid = lo + (hi - lo) / 2;  in find_alternatives_list()
360 		unsigned int alt = presorted_event_table[mid];  in find_alternatives_list()  local
362 		if (alt < event)  in find_alternatives_list()
364 		else if (alt > event)  in find_alternatives_list()
365 			hi = mid - 1;  in find_alternatives_list()
370 	return -1;  in find_alternatives_list()
373 static int p6_get_alternatives(u64 event, unsigned int flags, u64 alt[])  in p6_get_alternatives()  argument
380 	alt[0] = event;  in p6_get_alternatives()
392 				alt[nalt++] = aevent;  in p6_get_alternatives()
398 		/* PMCSEL 0x32 counter N == PMCSEL 0x34 counter 5-N */  in p6_get_alternatives()
402 			alt[nalt++] = ((event ^ 0x6) & ~PM_PMC_MSKS) |  in p6_get_alternatives()
403 				((5 - pmc) << PM_PMC_SH);  in p6_get_alternatives()
405 		/* PMCSEL 0x38 counter N == PMCSEL 0x3a counter N+/-2 */  in p6_get_alternatives()
407 			alt[nalt++] = ((event ^ 0x2) & ~PM_PMC_MSKS) |  in p6_get_alternatives()
408 				((pmc > 2? pmc - 2: pmc + 2) << PM_PMC_SH);  in p6_get_alternatives()
424 			switch (alt[i]) {  in p6_get_alternatives()
426 				alt[j++] = 0x600005;	/* PM_RUN_CYC */  in p6_get_alternatives()
430 				alt[j++] = 0x1e;	/* PM_CYC */  in p6_get_alternatives()
433 				alt[j++] = 0x500009;	/* PM_RUN_INST_CMPL */  in p6_get_alternatives()
437 				alt[j++] = 2;		/* PM_INST_CMPL */  in p6_get_alternatives()
440 				alt[j++] = 0x4000f4;	/* PM_RUN_PURR */  in p6_get_alternatives()
443 				alt[j++] = 0x10000e;	/* PM_PURR */  in p6_get_alternatives()
454 			if (!p6_limited_pmc_event(alt[i])) {  in p6_get_alternatives()
455 				alt[j] = alt[i];  in p6_get_alternatives()
464 			if (p6_limited_pmc_event(alt[i])) {  in p6_get_alternatives()
465 				alt[j] = alt[i];  in p6_get_alternatives()
479 		mmcr->mmcr1 &= ~(0xffUL << MMCR1_PMCSEL_SH(pmc));  in p6_disable_pmc()
494  * Table of generalized cache-related events.
495  * 0 means not supported, -1 means nonsensical, other values
507 		[C(OP_WRITE)] = {	-1,		-1		},
517 		[C(OP_WRITE)] = {	-1,		-1		},
518 		[C(OP_PREFETCH)] = {	-1,		-1		},
522 		[C(OP_WRITE)] = {	-1,		-1		},
523 		[C(OP_PREFETCH)] = {	-1,		-1		},
527 		[C(OP_WRITE)] = {	-1,		-1		},
528 		[C(OP_PREFETCH)] = {	-1,		-1		},
531 		[C(OP_READ)] = {	-1,		-1		},
532 		[C(OP_WRITE)] = {	-1,		-1		},
533 		[C(OP_PREFETCH)] = {	-1,		-1		},
559 		return -ENODEV;  in init_power6_pmu()