Re: [git pull] drm pull for v4.12

From	Linus Torvalds <torvalds@linux-foundation.org>
Newsgroups	linux.kernel
Subject	Re: [git pull] drm pull for v4.12
Date	2017-05-06 22:10 +0200
Message-ID	<tEebD-47R-1@gated-at.bofh.it> (permalink)
References	<tCTsC-7yN-13@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Tue, May 2, 2017 at 8:44 PM, Dave Airlie <airlied@gmail.com> wrote:
>
> i915:
> vblank evasion improvements

These may be "improvements", but they end up being very noisy.

I geta fair amount of messages like

  [drm] Atomic update on pipe (A) took 161 us, max time under evasion is 100 us

on my desktop (i7-6700K) and I've seen it once on my laptop (i7-6560U) too.

The commit message says "This will make it easier to find cases where
we potentially miss vblanks." but I'm not sure how that is the case.
There's nothing else helpful in the log, and it doesn't seem to be
associated with anything in particular (I'm just at the desktop,
running a few xterms and google-chrome).

                 Linus

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Re: [git pull] drm pull for v4.12 Linus Torvalds <torvalds@linux-foundation.org> - 2017-05-06 22:10 +0200
  Re: [PATCH] drm/i915: Make vblank evade warnings optional Jens Axboe <axboe@kernel.dk> - 2017-05-08 00:00 +0200
    Re: [PATCH] drm/i915: Make vblank evade warnings optional Daniel Vetter <daniel@ffwll.ch> - 2017-05-08 01:10 +0200
      Re: [PATCH] drm/i915: Make vblank evade warnings optional Jens Axboe <axboe@kernel.dk> - 2017-05-08 04:00 +0200
        Re: [PATCH] drm/i915: Make vblank evade warnings optional Daniel Vetter <daniel@ffwll.ch> - 2017-05-08 09:30 +0200
          Re: [PATCH] drm/i915: Make vblank evade warnings optional Jens Axboe <axboe@kernel.dk> - 2017-05-08 17:20 +0200
  [PATCH] drm/i915: Make vblank evade warnings optional ville.syrjala@linux.intel.com - 2017-05-08 00:30 +0200
    Re: [PATCH] drm/i915: Make vblank evade warnings optional Daniel Vetter <daniel@ffwll.ch> - 2017-05-08 09:30 +0200
  Re: [git pull] drm pull for v4.12 Daniel Vetter <daniel@ffwll.ch> - 2017-05-08 01:00 +0200

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