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From: Ben Widawsky <ben@bwidawsk.net>
To: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: intel-gfx@lists.freedesktop.org
Subject: Re: [PATCH] drm/i915: properly cancel rps_work on module unload
Date: Mon, 5 Sep 2011 10:27:18 -0700
Message-ID: <20110905102718.43b211e5@bwidawsk.net> (raw)
In-Reply-To: <1315210528-10976-1-git-send-email-daniel.vetter@ffwll.ch>

On Mon,  5 Sep 2011 10:15:28 +0200
Daniel Vetter <daniel.vetter@ffwll.ch> wrote:

> The rps disabling code wasn't properly cancelling outstanding work
> items. Also add a comment that explains why we're not racing with
> the work item that could unmask interrupts - that piece of code
> confused me quite a bit.
> 
> v2: Ben Widawsky pointed out that the first patch would deadlock
> (and a few lesser problems). All corrected.
> 
> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

Reviewed-by: Ben Widawsky <ben@bwidawsk.net>

This looks good. I think we need to do something in i915_save_state()
too though.

      reply index

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-09-04  3:24 [PATCH] drm/i915: Fix rps irq warning Ben Widawsky
2011-09-04  9:03 ` Chris Wilson
2011-09-04 15:49   ` Ben Widawsky
2011-09-04 15:34     ` [PATCH 0/3] slaughter rps races some more Daniel Vetter
2011-09-04 15:35       ` [PATCH 1/3] drm/i915: close PM interrupt masking races in the irq handler Daniel Vetter
2011-09-04 17:09         ` Ben Widawsky
2011-09-04 15:35       ` [PATCH 2/3] drm/i915: close PM interrupt masking races in the rps work func Daniel Vetter
2011-09-04 17:08         ` Ben Widawsky
2011-09-04 19:26           ` Daniel Vetter
2011-09-04 19:56             ` Ben Widawsky
2011-09-04 20:10               ` Daniel Vetter
2011-09-04 21:38                 ` Ben Widawsky
2011-09-05  6:38                   ` Daniel Vetter
2011-09-05  6:51                     ` Ben Widawsky
2011-09-05 12:15                       ` Chris Wilson
2011-09-04 15:35       ` [PATCH 3/3] drm/i915: close rps work vs. rps disable races Daniel Vetter
2011-09-04 17:23         ` Ben Widawsky
2011-09-04 19:17           ` Daniel Vetter
2011-09-04 19:50             ` Ben Widawsky
2011-09-04 19:57               ` Daniel Vetter
2011-09-05  8:15                 ` [PATCH] drm/i915: properly cancel rps_work on module unload Daniel Vetter
2011-09-05 17:27                   ` Ben Widawsky [this message]

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