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Re: [PATCH] drm/i915: Make vblank evade warnings optional

From Jens Axboe <axboe@kernel.dk>
Newsgroups linux.kernel
Subject Re: [PATCH] drm/i915: Make vblank evade warnings optional
Date 2017-05-08 00:00 +0200
Message-ID <tECnF-34t-59@gated-at.bofh.it> (permalink)
References <tEebD-47R-1@gated-at.bofh.it> <tECnF-34t-61@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On 05/07/2017 11:12 AM, ville.syrjala@linux.intel.com wrote:
> From: Ville Syrjälä <ville.syrjala@linux.intel.com>
> 
> Add a new Kconfig option to enable/disable the extra warnings
> from the vblank evade code. For now we'll keep the warning
> about an actually missed vblank always enabled as that can have
> an actual user visible impact. But if we miss the deadline
> othrwise there's no real need to bother the user with that.
> We'll want these warnings enabled during development however
> so that we can catch regressions.
> 
> Based on the reports it looks like this is still very easy
> to hit on SKL, so we have more work ahead of us to optimize
> the crtiical section further.

Shouldn't it just be a debug printk or something instead, so that normal
people don't see it, but the folks that turn on debugging can get the
info they need? Seems silly to add a kconfig option for this.

-- 
Jens Axboe

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Thread

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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