Re: [PATCH 2/2] IPS driver: verify BIOS provided limits

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On Thu, 23 Sep 2010 23:49:29 +0200
Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx> wrote:

> They're optional.  If not present or sane, we should use the CPU
> defaults.
> 
> Signed-off-by: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx>
> ---
>  drivers/platform/x86/intel_ips.c |   23 +++++++++++++++++++++++
>  1 files changed, 23 insertions(+), 0 deletions(-)

Note this patch is necessary but not sufficient.  At least on one of my
test platforms, I see really bad looking chipset power values from the
i915 driver.  That will trigger spurious "power exceeded" messages and
unnecessarily limit your GPU performance.  Working on a fix now.

-- 
Jesse Barnes, Intel Open Source Technology Center
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