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head/sys/x86/cpufreq/hwpstate_intel.c
| Show First 20 Lines • Show All 455 Lines • ▼ Show 20 Lines | set_autonomous_hwp(struct hwp_softc *sc) | ||||
| if (sc->hwp_pkg_ctrl_en) { | if (sc->hwp_pkg_ctrl_en) { | ||||
| /* | /* | ||||
| * "The structure of the IA32_HWP_REQUEST_PKG MSR | * "The structure of the IA32_HWP_REQUEST_PKG MSR | ||||
| * (package-level) is identical to the IA32_HWP_REQUEST MSR | * (package-level) is identical to the IA32_HWP_REQUEST MSR | ||||
| * with the exception of the Package Control field, which does | * with the exception of the Package Control field, which does | ||||
| * not exist." (Intel SDM §14.4.4) | * not exist." (Intel SDM §14.4.4) | ||||
| */ | */ | ||||
| ret = wrmsr_safe(MSR_IA32_HWP_REQUEST_PKG, sc->req); | ret = wrmsr_safe(MSR_IA32_HWP_REQUEST_PKG, sc->req); | ||||
| if (ret) { | |||||
| device_printf(dev, | device_printf(dev, | ||||
| "Failed to set autonomous HWP for package\n"); | "Failed to set autonomous HWP for package\n"); | ||||
| } | |||||
| } | } | ||||
| out: | out: | ||||
| thread_lock(curthread); | thread_lock(curthread); | ||||
| sched_unbind(curthread); | sched_unbind(curthread); | ||||
| thread_unlock(curthread); | thread_unlock(curthread); | ||||
| return (ret); | return (ret); | ||||
| ▲ Show 20 Lines • Show All 164 Lines • Show Last 20 Lines | |||||