https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=233693
Bug ID: 233693
Summary: [PowerPC64] Powerd unable to change cpu frequency
Product: Base System
Version: CURRENT
Hardware: powerpc
OS: Any
Status: New
Severity: Affects Some People
Priority: ---
Component: kern
Assignee: b...@freebsd.org
Reporter: sbr...@freebsd.org
The Tyan Power8 machines seem to need some kind of tweak to allow any powerd
functionality. Starting powerd simply emits this repeatedly on the console:
pmcr0: set freq failed, err 22
pmcr1: set freq failed, err 22
pmcr2: set freq failed, err 22
pmcr3: set freq failed, err 22
pmcr0: set freq failed, err 22
pmcr1: set freq failed, err 22
pmcr2: set freq failed, err 22
pmcr3: set freq failed, err 22
pmcr(8) seems to be detecting the following:
r...@pylon.nyi:~ # sysctl dev.pmcr
dev.pmcr.3.freq_settings: 4322/-1 4289/-1 4256/-1 4222/-1 4189/-1 4156/-1
4123/-1 4089/-1 4056/-1 4023/-1 3990/-1 3956/-1 3923/-1 3890/-1 3857/-1 3823/-1
3790/-1 3757/-1 3724/-1 3690/-1 3657/-1 3624/-1 3591/-1 3557/-1 3524/-1 3491/-1
3458/-1 3424/-1 3391/-1 3358/-1 3325/-1 3291/-1 3258/-1 3225/-1 3192/-1 3158/-1
3125/-1 3092/-1 3059/-1 3025/-1 2992/-1 2959/-1 2926/-1 2892/-1 2859/-1 2826/-1
2793/-1 2759/-1 2726/-1 2693/-1 2660/-1 2626/-1 2593/-1 2560/-1 2527/-1 2493/-1
2460/-1 2427/-1 2394/-1 2360/-1 2327/-1 2294/-1 2261/-1 2227/-1 2194/-1 2161/-1
2128/-1 2094/-1 2061/-1
dev.pmcr.3.%parent: cpu3
dev.pmcr.3.%pnpinfo:
dev.pmcr.3.%location:
dev.pmcr.3.%driver: pmcr
dev.pmcr.3.%desc: Power Management Control Register
dev.pmcr.2.freq_settings: 4322/-1 4289/-1 4256/-1 4222/-1 4189/-1 4156/-1
4123/-1 4089/-1 4056/-1 4023/-1 3990/-1 3956/-1 3923/-1 3890/-1 3857/-1 3823/-1
3790/-1 3757/-1 3724/-1 3690/-1 3657/-1 3624/-1 3591/-1 3557/-1 3524/-1 3491/-1
3458/-1 3424/-1 3391/-1 3358/-1 3325/-1 3291/-1 3258/-1 3225/-1 3192/-1 3158/-1
3125/-1 3092/-1 3059/-1 3025/-1 2992/-1 2959/-1 2926/-1 2892/-1 2859/-1 2826/-1
2793/-1 2759/-1 2726/-1 2693/-1 2660/-1 2626/-1 2593/-1 2560/-1 2527/-1 2493/-1
2460/-1 2427/-1 2394/-1 2360/-1 2327/-1 2294/-1 2261/-1 2227/-1 2194/-1 2161/-1
2128/-1 2094/-1 2061/-1
dev.pmcr.2.%parent: cpu2
dev.pmcr.2.%pnpinfo:
dev.pmcr.2.%location:
dev.pmcr.2.%driver: pmcr
dev.pmcr.2.%desc: Power Management Control Register
dev.pmcr.1.freq_settings: 4322/-1 4289/-1 4256/-1 4222/-1 4189/-1 4156/-1
4123/-1 4089/-1 4056/-1 4023/-1 3990/-1 3956/-1 3923/-1 3890/-1 3857/-1 3823/-1
3790/-1 3757/-1 3724/-1 3690/-1 3657/-1 3624/-1 3591/-1 3557/-1 3524/-1 3491/-1
3458/-1 3424/-1 3391/-1 3358/-1 3325/-1 3291/-1 3258/-1 3225/-1 3192/-1 3158/-1
3125/-1 3092/-1 3059/-1 3025/-1 2992/-1 2959/-1 2926/-1 2892/-1 2859/-1 2826/-1
2793/-1 2759/-1 2726/-1 2693/-1 2660/-1 2626/-1 2593/-1 2560/-1 2527/-1 2493/-1
2460/-1 2427/-1 2394/-1 2360/-1 2327/-1 2294/-1 2261/-1 2227/-1 2194/-1 2161/-1
2128/-1 2094/-1 2061/-1
dev.pmcr.1.%parent: cpu1
dev.pmcr.1.%pnpinfo:
dev.pmcr.1.%location:
dev.pmcr.1.%driver: pmcr
dev.pmcr.1.%desc: Power Management Control Register
dev.pmcr.0.freq_settings: 4322/-1 4289/-1 4256/-1 4222/-1 4189/-1 4156/-1
4123/-1 4089/-1 4056/-1 4023/-1 3990/-1 3956/-1 3923/-1 3890/-1 3857/-1 3823/-1
3790/-1 3757/-1 3724/-1 3690/-1 3657/-1 3624/-1 3591/-1 3557/-1 3524/-1 3491/-1
3458/-1 3424/-1 3391/-1 3358/-1 3325/-1 3291/-1 3258/-1 3225/-1 3192/-1 3158/-1
3125/-1 3092/-1 3059/-1 3025/-1 2992/-1 2959/-1 2926/-1 2892/-1 2859/-1 2826/-1
2793/-1 2759/-1 2726/-1 2693/-1 2660/-1 2626/-1 2593/-1 2560/-1 2527/-1 2493/-1
2460/-1 2427/-1 2394/-1 2360/-1 2327/-1 2294/-1 2261/-1 2227/-1 2194/-1 2161/-1
2128/-1 2094/-1 2061/-1
dev.pmcr.0.%parent: cpu0
dev.pmcr.0.%pnpinfo:
dev.pmcr.0.%location:
dev.pmcr.0.%driver: pmcr
dev.pmcr.0.%desc: Power Management Control Register
dev.pmcr.%parent:
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