From: Andrew Lutomirski <luto@mit.edu>
To: Keith Packard <keithp@keithp.com>
Cc: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org
Subject: Re: [Intel-gfx] [PATCH] drm: Aggressively disable vblanks
Date: Mon, 20 Dec 2010 22:55:46 -0500 [thread overview]
Message-ID: <AANLkTimk6RLkr8Lt76cR8ncLW_3kaX6Dqa+=id9_G-8C@mail.gmail.com> (raw)
In-Reply-To: <yunbp4frdmo.fsf@aiko.keithp.com>
On Mon, Dec 20, 2010 at 10:47 PM, Keith Packard <keithp@keithp.com> wrote:
> On Mon, 20 Dec 2010 22:34:12 -0500, Andrew Lutomirski <luto@mit.edu> wrote:
>
>> But five seconds is a *long* time, and anything short enough that the
>> interrupt actually gets turned off in normal use risks the same race.
>
> Right, so eliminating any race seems like the basic requirement. Can
> that be done?
I'll give it a shot.
Do you know if there's an existing tool to call drm_wait_vblank from
userspace for testing? I know approximately nothing about libdrm or
any userspace graphics stuff whatsoever.
--Andy
>
> --
> keith.packard@intel.com
>
next prev parent reply other threads:[~2010-12-21 3:55 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-20 19:00 [PATCH] drm: Aggressively disable vblanks Andy Lutomirski
2010-12-21 3:23 ` Keith Packard
2010-12-21 3:34 ` [Intel-gfx] " Andrew Lutomirski
2010-12-21 3:47 ` Keith Packard
2010-12-21 3:55 ` Andrew Lutomirski [this message]
2010-12-21 4:03 ` Jesse Barnes
[not found] <mailman.28.1292917668.19577.dri-devel@lists.freedesktop.org>
2010-12-22 4:36 ` [Intel-gfx] " Mario Kleiner
2010-12-22 17:23 ` Jesse Barnes
2010-12-22 21:06 ` Mario Kleiner
2010-12-26 14:53 ` Andrew Lutomirski
2010-12-26 23:58 ` Mario Kleiner
2010-12-27 11:16 ` Ville Syrjälä
2010-12-27 21:30 ` Mario Kleiner
2011-01-10 2:24 ` Andrew Lutomirski
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