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SubjectRe: [PATCH] ACPI: kernel-parameters.txt : Add intel_idle.max_cstate
Date
On Wednesday, December 14, 2011 05:18:52 PM Masanari Iida wrote:
> Add missing intel_idle.max_cstate in kernel-parameters.txt
I wonder whether this one should get documented at all.

Better would be to work towards a general cpuidle.max_state=
param which deprecates processor.max_cstate= (acpi_idle driver) and
intel_idle.max_cstate= and enables this functionality for all
other cpuidle drivers out there as well.

Something to turn off intel_idle driver and favor the acpi_idle
driver for debugging would still be needed then.

Thomas

>
> Signed-off-by Masanari Iida <standby24x7@gmail.com>
> cc:Len Brown <lenb@kernel.org>
> cc:Randy Dunlap <rdunlap@xenotime.net>
> ---
> Documentation/kernel-parameters.txt | 5 +++++
> 1 files changed, 5 insertions(+), 0 deletions(-)
>
> diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-
parameters.txt
> index 81c287f..c6a56d8 100644
> --- a/Documentation/kernel-parameters.txt
> +++ b/Documentation/kernel-parameters.txt
> @@ -1035,6 +1035,11 @@ bytes respectively. Such letter suffixes can also
be entirely omitted.
> By default, super page will be supported if Intel IOMMU
> has the capability. With this option, super page will
> not be supported.
> +
> + intel_idle.max_cstate= [KNL,HW,ACPI,X86]
> + 0 disables intel_idle and fall back on acpi_idle.
> + 1 to 6 specify maximum depth of C-state.
> +
> intremap= [X86-64, Intel-IOMMU]
> on enable Interrupt Remapping (default)
> off disable Interrupt Remapping
> --
> 1.7.6.4
>
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