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SubjectRe: [PATCH] ACPI: update user_policy.max when _PPC updated
On 06/07/13 03:54, Rafael J. Wysocki wrote:
> Do you mean you set a limit in the BIOS setup and the kernel changed that limit
> on boot?

Sorry for the confusing.

The issue is when we disable hardcap before kernel boot up, after kernel bring
up, any changes of _PPC will update scaling_max_freq properly.

If we enable hardcap before kernel boot up, after kernel bring up, even we
disable it, scaling_max_freq does not be updated to max frequency, the max
frequency just up to the value when bring up.

Review related codes I found the limit came from user_policy.max, means when
we set user_policy.max to 1000MHZ when boot up, then any changes of _PPC could
not enlarge the scaling_max_freq, I think this is not as expected? please advise.

Thanks,
Joe


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