diff options
Diffstat (limited to 'usr/src/uts/common/os/cpu.c')
| -rw-r--r-- | usr/src/uts/common/os/cpu.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/usr/src/uts/common/os/cpu.c b/usr/src/uts/common/os/cpu.c index 904e507caf..8b8d0d08b5 100644 --- a/usr/src/uts/common/os/cpu.c +++ b/usr/src/uts/common/os/cpu.c @@ -56,6 +56,7 @@ #include <sys/msacct.h> #include <sys/time.h> #include <sys/archsystm.h> +#include <sys/sdt.h> #if defined(__x86) || defined(__amd64) #include <sys/x86_archext.h> #endif @@ -2163,6 +2164,8 @@ static struct { kstat_named_t ci_pkg_core_id; kstat_named_t ci_ncpuperchip; kstat_named_t ci_ncoreperchip; + kstat_named_t ci_max_cstates; + kstat_named_t ci_curr_cstate; #endif } cpu_info_template = { { "state", KSTAT_DATA_CHAR }, @@ -2189,6 +2192,8 @@ static struct { { "pkg_core_id", KSTAT_DATA_LONG }, { "ncpu_per_chip", KSTAT_DATA_INT32 }, { "ncore_per_chip", KSTAT_DATA_INT32 }, + { "supported_max_cstates", KSTAT_DATA_INT32 }, + { "current_cstate", KSTAT_DATA_INT32 }, #endif }; @@ -2258,6 +2263,8 @@ cpu_info_kstat_update(kstat_t *ksp, int rw) cpu_info_template.ci_ncoreperchip.value.l = cpuid_get_ncore_per_chip(cp); cpu_info_template.ci_pkg_core_id.value.l = cpuid_get_pkgcoreid(cp); + cpu_info_template.ci_max_cstates.value.l = cp->cpu_m.max_cstates; + cpu_info_template.ci_curr_cstate.value.l = cp->cpu_m.curr_cstate; #endif return (0); @@ -2960,6 +2967,25 @@ cpu_set_supp_freqs(cpu_t *cp, const char *freqs) } /* + * Indicate the current CPU's clock freqency (in Hz). + * The calling context must be such that CPU references are safe. + */ +void +cpu_set_curr_clock(uint64_t new_clk) +{ + uint64_t old_clk; + + old_clk = CPU->cpu_curr_clock; + CPU->cpu_curr_clock = new_clk; + + /* + * The cpu-change-speed DTrace probe exports the frequency in Hz + */ + DTRACE_PROBE3(cpu__change__speed, processorid_t, CPU->cpu_id, + uint64_t, old_clk, uint64_t, new_clk); +} + +/* * processor_info(2) and p_online(2) status support functions * The constants returned by the cpu_get_state() and cpu_get_state_str() are * for use in communicating processor state information to userland. Kernel |