From: Keith Packard <keithp@keithp.com>
To: Thierry Reding <thierry.reding@gmail.com>,
Arto Merilainen <amerilainen@nvidia.com>
Cc: Terje Bergstrom <tbergstrom@nvidia.com>,
xorg-devel@lists.x.org,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"dri-devel@lists.freedesktop.org"
<dri-devel@lists.freedesktop.org>,
"linux-tegra@vger.kernel.org" <linux-tegra@vger.kernel.org>
Subject: Re: [PATCH 2/6] gpu: host1x: Fix syncpoint wait return value
Date: Tue, 28 May 2013 13:12:12 -0600 [thread overview]
Message-ID: <86y5ay6hrn.fsf@miki.keithp.com> (raw)
In-Reply-To: <20130528103927.GB11547@mithrandir>
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Thierry Reding <thierry.reding@gmail.com> writes:
> That doesn't sound right. Maybe drmIoctl() needs fixing instead. Looking
> at the history, drmIoctl() was introduced to automatically loop if a
> signal was received (commit 8b9ab108ec1f2ba2b503f713769c4946849b3cb2).
> However the ioctl(3p) manpage doesn't mention that ioctl() returns
> EAGAIN in case it is interrupted by a signal.
EAGAIN is being returned when the GPU is wedged to ask the application
to re-submit the request, which will presumably be held until the GPU
is un-wedged.
--
keith.packard@intel.com
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next prev parent reply other threads:[~2013-05-28 21:04 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-17 11:49 [PATCH 0/6] Miscellaneous fixes to host1x Arto Merilainen
2013-05-17 11:49 ` [PATCH 2/6] gpu: host1x: Fix syncpoint wait return value Arto Merilainen
[not found] ` <1368791388-31441-3-git-send-email-amerilainen-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-05-26 10:12 ` Thierry Reding
2013-05-27 6:55 ` Arto Merilainen
[not found] ` <51A30372.6080907-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-05-28 10:39 ` Thierry Reding
2013-05-28 19:12 ` Keith Packard [this message]
[not found] ` <86y5ay6hrn.fsf-07MG1JmyPZaz9DMzp4kqnw@public.gmane.org>
2013-06-11 10:48 ` Thierry Reding
2013-06-11 11:00 ` Daniel Vetter
2013-06-11 11:43 ` Terje Bergström
2013-06-11 12:09 ` Daniel Vetter
[not found] ` <CAKMK7uGRW4uqsSaDEehTZwknZH+mNEgyKB6-4TgfgUOaTOcoLA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-06-11 18:19 ` Thierry Reding
2013-06-12 10:28 ` Terje Bergström
2013-06-12 11:00 ` Daniel Vetter
[not found] ` <1368791388-31441-1-git-send-email-amerilainen-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-05-17 11:49 ` [PATCH 1/6] gpu: host1x: Fixes to host1x firewall Arto Merilainen
[not found] ` <1368791388-31441-2-git-send-email-amerilainen-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-05-26 10:02 ` Thierry Reding
2013-05-27 6:22 ` Arto Merilainen
2013-05-17 11:49 ` [PATCH 3/6] gpu: host1x: Fix memory access in syncpt request Arto Merilainen
[not found] ` <1368791388-31441-4-git-send-email-amerilainen-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-05-26 10:15 ` Thierry Reding
2013-05-27 6:56 ` Arto Merilainen
2013-05-17 11:49 ` [PATCH 4/6] gpu: host1x: Fix client_managed type Arto Merilainen
[not found] ` <1368791388-31441-5-git-send-email-amerilainen-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-05-26 10:17 ` Thierry Reding
2013-05-17 11:49 ` [PATCH 5/6] gpu: host1x: Rework CPU syncpoint increment Arto Merilainen
[not found] ` <1368791388-31441-6-git-send-email-amerilainen-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-05-26 10:24 ` Thierry Reding
2013-05-17 11:49 ` [PATCH 6/6] drm/tegra: Fix syncpoint increment return code Arto Merilainen
[not found] ` <1368791388-31441-7-git-send-email-amerilainen-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-05-26 10:26 ` Thierry Reding
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