common/os/pghw.c

34 #include <sys/pg.h>
107 static group_t		*pg_hw;		/* top level pg hw group */
226 pghw_init(pghw_t *pg, cpu_t *cp, pghw_type_t hw)
237 	pghw_set_add(hwset, pg);
238 	pg->pghw_hw = hw;
239 	pg->pghw_generation = 0;
240 	pg->pghw_instance =
242 	pghw_kstat_create(pg);
247 	switch (pg->pghw_hw) {
249 		pg->pghw_handle =
253 		pg->pghw_handle =
257 		pg->pghw_handle = (pghw_handle_t)NULL;
265 pghw_fini(pghw_t *pg)
269 	pghw_cmt_fini(pg);
271 	hwset = pghw_set_lookup(pg->pghw_hw);
274 	pghw_set_remove(hwset, pg);
275 	pg->pghw_instance = (id_t)PGHW_INSTANCE_ANON;
276 	pg->pghw_hw = (pghw_type_t)-1;
278 	if (pg->pghw_kstat != NULL)
279 		kstat_delete(pg->pghw_kstat);
287 pghw_cmt_fini(pghw_t *pg)
292 	if (pg->pghw_cpulist != NULL) {
293 		kmem_free(pg->pghw_cpulist,
294 		    pg->pghw_cpulist_len);
295 		pg->pghw_cpulist = NULL;
301 	if (pg->pghw_cu_kstat != NULL) {
302 		kstat_delete(pg->pghw_cu_kstat);
303 		pg->pghw_cu_kstat = NULL;
325  * Find the pg representing the hw sharing relationship in which
332 	pghw_t	*pg;
335 	while ((pg = group_iterate(&cp->cpu_pg->pgs, &i)) != NULL) {
336 		if (pg->pghw_hw == hw)
337 			return (pg);
351 	pghw_t		*pg;
358 	while ((pg = group_iterate(set, &i)) != NULL) {
359 		if (pg->pghw_instance == id)
360 			return (pg);
444 pghw_set_add(group_t *hwset, pghw_t *pg)
446 	(void) group_add(hwset, pg, GRP_RESIZE);
453 pghw_set_remove(group_t *hwset, pghw_t *pg)
457 	result = group_remove(hwset, pg, GRP_RESIZE);
497 pghw_kstat_create(pghw_t *pg)
499 	char *sharing = pghw_type_string(pg->pghw_hw);
505 	(void) strncpy(name, pghw_type_string(pg->pghw_hw), KSTAT_STRLEN + 1);
511 	if ((pg->pghw_kstat = kstat_create("pg", ((pg_t *)pg)->pg_id,
512 	    "pg", "pg",
517 		pg->pghw_kstat->ks_data_size += PG_CLASS_NAME_MAX;
518 		pg->pghw_kstat->ks_data_size += PGHW_KSTAT_STR_LEN_MAX;
519 		pg->pghw_kstat->ks_data_size += PGHW_KSTAT_STR_LEN_MAX;
520 		pg->pghw_kstat->ks_lock = &pghw_kstat_lock;
521 		pg->pghw_kstat->ks_data = &pghw_kstat;
522 		pg->pghw_kstat->ks_update = pghw_kstat_update;
523 		pg->pghw_kstat->ks_private = pg;
524 		kstat_install(pg->pghw_kstat);
531 	 * Create a physical pg kstat
533 	if ((pg->pghw_cu_kstat = kstat_create("pg_hw_perf", ((pg_t *)pg)->pg_id,
538 		pg->pghw_cu_kstat->ks_lock = &pghw_kstat_lock;
539 		pg->pghw_cu_kstat->ks_data = &pghw_cu_kstat;
540 		pg->pghw_cu_kstat->ks_update = pghw_cu_kstat_update;
541 		pg->pghw_cu_kstat->ks_private = pg;
542 		pg->pghw_cu_kstat->ks_data_size += strlen(sharing) + 1;
544 		pg->pghw_cu_kstat->ks_data_size += PGHW_KSTAT_STR_LEN_MAX;
545 		pg->pghw_cu_kstat->ks_data_size += pg_cpulist_maxlen;
546 		kstat_install(pg->pghw_cu_kstat);
554 	pghw_t			*pg = ksp->ks_private;
559 	pgsp->pg_id.value.ui32 = ((pg_t *)pg)->pg_id;
560 	pgsp->pg_ncpus.value.ui32 = GROUP_SIZE(&((pg_t *)pg)->pg_cpus);
561 	pgsp->pg_instance_id.value.ui32 = pg->pghw_instance;
562 	kstat_named_setstr(&pgsp->pg_class, ((pg_t *)pg)->pg_class->pgc_name);
563 	kstat_named_setstr(&pgsp->pg_hw, pghw_type_string(pg->pghw_hw));
564 	kstat_named_setstr(&pgsp->pg_policy, pg_policy_name((pg_t *)pg));
572 	pghw_t			*pg = ksp->ks_private;
573 	pghw_util_t		*hw_util = &pg->pghw_stats;
586 	pgsp->pg_id.value.i32 = ((pg_t *)pg)->pg_id;
587 	pgsp->pg_parent_id.value.i32 = (int)pghw_parent_id(pg);
589 	pgsp->pg_ncpus.value.ui32 = GROUP_SIZE(&((pg_t *)pg)->pg_cpus);
596 	pghw_cpulist_alloc(pg);
598 	if (pg->pghw_kstat_gen != pg->pghw_generation) {
610 		pg->pghw_kstat_gen = pg->pghw_generation;
620 		if (pg->pghw_cpulist != NULL &&
621 		    *(pg->pghw_cpulist) == '\0') {
622 			(void) group2intlist(&(((pg_t *)pg)->pg_cpus),
623 			    pg->pghw_cpulist, pg->pghw_cpulist_len, cpu2id);
627 			cu_pg_update(pg);
632 	pgsp->pg_generation.value.ui32 = pg->pghw_kstat_gen;
633 	if (pg->pghw_cpulist != NULL)
634 		kstat_named_setstr(&pgsp->pg_cpus, pg->pghw_cpulist);
639 	    pghw_type_string(pg->pghw_hw));
661  * Update the string representation of CPUs in PG (pg->pghw_cpulist).
668  * field is used to detect whether CPUs within the pg may have changed.
671 pghw_cpulist_alloc(pghw_t *pg)
673 	uint_t	ncpus = GROUP_SIZE(&((pg_t *)pg)->pg_cpus);
681 	if (pg->pghw_cpulist != NULL &&
682 	    pg->pghw_kstat_gen != pg->pghw_generation) {
683 		if (len <= pg->pghw_cpulist_len) {
689 			*(pg->pghw_cpulist) = '\0';
695 			ASSERT(strlen(pg->pghw_cpulist) < pg->pghw_cpulist_len);
696 			kmem_free(pg->pghw_cpulist, pg->pghw_cpulist_len);
697 			pg->pghw_cpulist = NULL;
698 			pg->pghw_cpulist_len = 0;
702 	if (pg->pghw_cpulist == NULL) {
712 			pg->pghw_cpulist = kmem_zalloc(len, KM_NOSLEEP);
713 			if (pg->pghw_cpulist != NULL)
714 				pg->pghw_cpulist_len = len;
737 	pg_t *pg = (pg_t *)pghw;
740 	if (pg != NULL && strcmp(pg->pg_class->pgc_name, "cmt") == 0) {
741 		pg_cmt_t *cmt = (pg_cmt_t *)pg;