Date: Fri, 6 Feb 2015 17:48:37 -0800 From: Kevin Oberman <rkoberman@gmail.com> To: Adrian Chadd <adrian@freebsd.org> Cc: freebsd-current <freebsd-current@freebsd.org>, Konstantin Belousov <kib@freebsd.org>, Allan Jude <allanjude@freebsd.org> Subject: Re: Weird ACPI/DRM messages on -current Message-ID: <CAN6yY1umyNEoA6DNkMLtQa96tWBN%2BZrERCCrKtwZw0BJuwVPfw@mail.gmail.com> In-Reply-To: <CAJ-VmokNFSjnExqT831KSfMBFxjNV6GW4ogC4DEjYK75F1Naxw@mail.gmail.com> References: <1938.1423242624@critter.freebsd.dk> <54D52CBC.80507@freebsd.org> <CAJ-VmokNFSjnExqT831KSfMBFxjNV6GW4ogC4DEjYK75F1Naxw@mail.gmail.com>
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On Fri, Feb 6, 2015 at 2:00 PM, Adrian Chadd <adrian@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@gmail.com
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