On Thursday, February 25, 2016 03:20:42 PM Srinivas Pandruvada wrote:

On Fri, 2016-02-26 at 00:18 +0100, Rafael J. Wysocki wrote:

quoted

On Thursday, February 25, 2016 03:09:31 PM Srinivas Pandruvada wrote:

quoted

Disable HWP Interrupt notification before enabling HWP. Since we
don't
have HWP interrupt handling for possible performance interrupts,
there
is not much use of enabling HWP interrupts.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel
.com>

The patch is fine, but are there any known systems where it fixes any
functional issues just for the record?

We don't know whether it fixes any functional issue.

OK

But it was set on some system on boot. I worry that this may cause flooding
of interrupt during boot if there are some thermal issues.

It obviously may lead to problems, which is why the patch is needed.

Thanks,
Rafael