Weird ACPI/DRM messages on -current

[Kevin Oberman]

On Fri, Feb 6, 2015 at 2:00 PM, Adrian Chadd <adrian at freebsd.org> wrote:

> Can someone just go digging through the include files to see what the
> difference in bits are?
>
> This may be related to increased power usage that's been reported.
>
>
> -a
>

It's defined in /sys/dev/drm2/i915/i915_reg.h. Unfortunately, no breakdown
is shown. In i915_irq.c and intel_display I see:
        I915_WRITE(GEN6_RP_INTERRUPT_LIMITS,
                   18 << 24 |
                   6 << 16);

The exact same code appears in both and these are the only references to
that  I can find. This leaves my with no more idea than I had before I
looked. maybe someone has more of a clue.
--
Kevin Oberman, Network Engineer, Retired
E-mail: rkoberman at gmail.com