diff options
Diffstat (limited to 'usr/src/uts/common/sys/pghw.h')
| -rw-r--r-- | usr/src/uts/common/sys/pghw.h | 75 |
1 files changed, 58 insertions, 17 deletions
diff --git a/usr/src/uts/common/sys/pghw.h b/usr/src/uts/common/sys/pghw.h index ab8b0a9bbe..f0550dba7e 100644 --- a/usr/src/uts/common/sys/pghw.h +++ b/usr/src/uts/common/sys/pghw.h @@ -89,6 +89,27 @@ typedef enum pghw_type { typedef uintptr_t pghw_handle_t; /* + * Representation of PG hardware utilization NOTE: All the sums listed below are + * the sums of running total of each item for each CPU in the PG (eg. + * sum(utilization) is sum of running total utilization of each CPU in PG) + */ +typedef struct pghw_util { + uint64_t pghw_util; /* sum(utilization) */ + uint64_t pghw_rate; /* Last observed utilization rate */ + uint64_t pghw_rate_max; /* Max observed rate (in units/sec) */ + hrtime_t pghw_time_stamp; /* Timestamp of last snapshot */ + /* + * sum(time utilization counters on) + */ + hrtime_t pghw_time_running; + /* + * sum(time utilization counters off) + */ + hrtime_t pghw_time_stopped; +} pghw_util_t; + + +/* * Processor Group (physical sharing relationship) */ typedef struct pghw { @@ -97,6 +118,23 @@ typedef struct pghw { id_t pghw_instance; /* sharing instance identifier */ pghw_handle_t pghw_handle; /* hw specific opaque handle */ kstat_t *pghw_kstat; /* physical kstats exported */ + kstat_t *pghw_cu_kstat; /* for capacity and utilization */ + /* + * pghw_generation should be updated by superclasses whenever PG changes + * significanly (e.g. new CPUs join or leave PG). + */ + uint_t pghw_generation; /* generation number */ + + /* + * The following fields are used by PGHW cu kstats + */ + char *pghw_cpulist; /* list of CPUs */ + size_t pghw_cpulist_len; /* length of the list */ + /* + * Generation number at kstat update time + */ + uint_t pghw_kstat_gen; + pghw_util_t pghw_stats; /* Utilization data */ } pghw_t; /* @@ -111,32 +149,35 @@ typedef struct cpu_physid { /* * Physical PG initialization / CPU service hooks */ -void pghw_init(pghw_t *, cpu_t *, pghw_type_t); -void pghw_fini(pghw_t *); -void pghw_cpu_add(pghw_t *, cpu_t *); -pghw_t *pghw_place_cpu(cpu_t *, pghw_type_t); +extern void pghw_init(pghw_t *, cpu_t *, pghw_type_t); +extern void pghw_fini(pghw_t *); +extern void pghw_cpu_add(pghw_t *, cpu_t *); +extern pghw_t *pghw_place_cpu(cpu_t *, pghw_type_t); /* * Physical ID cache creation / destruction */ -void pghw_physid_create(cpu_t *); -void pghw_physid_destroy(cpu_t *); +extern void pghw_physid_create(cpu_t *); +extern void pghw_physid_destroy(cpu_t *); /* * CPU / PG hardware related seach operations */ -pghw_t *pghw_find_pg(cpu_t *, pghw_type_t); -pghw_t *pghw_find_by_instance(id_t, pghw_type_t); -group_t *pghw_set_lookup(pghw_type_t); - -void pghw_kstat_create(pghw_t *); -int pghw_kstat_update(kstat_t *, int); +extern pghw_t *pghw_find_pg(cpu_t *, pghw_type_t); +extern pghw_t *pghw_find_by_instance(id_t, pghw_type_t); +extern group_t *pghw_set_lookup(pghw_type_t); /* Hardware sharing relationship platform interfaces */ -int pg_plat_hw_shared(cpu_t *, pghw_type_t); -int pg_plat_cpus_share(cpu_t *, cpu_t *, pghw_type_t); -id_t pg_plat_hw_instance_id(cpu_t *, pghw_type_t); -pghw_type_t pg_plat_hw_rank(pghw_type_t, pghw_type_t); +extern int pg_plat_hw_shared(cpu_t *, pghw_type_t); +extern int pg_plat_cpus_share(cpu_t *, cpu_t *, pghw_type_t); +extern id_t pg_plat_hw_instance_id(cpu_t *, pghw_type_t); +extern pghw_type_t pg_plat_hw_rank(pghw_type_t, pghw_type_t); + +/* + * String representation of the hardware type + */ +extern char *pghw_type_string(pghw_type_t); +extern char *pghw_type_shortstring(pghw_type_t); /* * What comprises a "core" may vary across processor implementations, @@ -144,7 +185,7 @@ pghw_type_t pg_plat_hw_rank(pghw_type_t, pghw_type_t); * is no PGHW_CORE type, but we provide an interface here to allow platforms * to express cpu <=> core mappings. */ -id_t pg_plat_get_core_id(cpu_t *); +extern id_t pg_plat_get_core_id(cpu_t *); #endif /* !_KERNEL && !_KMEMUSER */ |