From: Chris Wilson <chris@chris-wilson.co.uk>
To: Daniel Vetter <daniel@ffwll.ch>
Cc: intel-gfx@lists.freedesktop.org
Subject: Re: [PATCH 1/6] drm/i915: Allow late allocation of request for i915_add_request()
Date: Thu, 12 Jul 2012 18:56:41 +0100 [thread overview]
Message-ID: <1342115811_2017@CP5-2952> (raw)
In-Reply-To: <20120712174347.GL5039@phenom.ffwll.local>
On Thu, 12 Jul 2012 19:43:47 +0200, Daniel Vetter <daniel@ffwll.ch> wrote:
> On Thu, Jul 12, 2012 at 04:13:34PM +0100, Chris Wilson wrote:
> > ret = ring->add_request(ring, &seqno);
> > if (ret)
> > - return ret;
> > + return ret;
> > +
> > + if (request == NULL) {
> > + request = kmalloc(sizeof(*request), GFP_KERNEL);
> > + if (request == NULL)
> > + return -ENOMEM;
> > + }
>
> Hm, shouldn't we try to allocate the request struct before we emit the
> request? Otherwise looks good.
I considered the ordering immaterial so went with the cleanest error
path.
If the allocation fails after we add the breadcrumb, we will then reuse
the olr for further batches.... Oops.
I was wrong, it matters.
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
next prev parent reply other threads:[~2012-07-12 17:56 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-12 15:13 Kill the flushing list Chris Wilson
2012-07-12 15:13 ` [PATCH 1/6] drm/i915: Allow late allocation of request for i915_add_request() Chris Wilson
2012-07-12 17:43 ` Daniel Vetter
2012-07-12 17:56 ` Chris Wilson [this message]
2012-07-12 18:02 ` [PATCH] " Chris Wilson
2012-07-12 15:13 ` [PATCH 2/6] drm/i915: Remove the defunct flushing list Chris Wilson
2012-07-13 9:12 ` Daniel Vetter
2012-07-12 15:13 ` [PATCH 3/6] drm/i915: Remove the per-ring write list Chris Wilson
2012-07-12 19:37 ` Daniel Vetter
2012-07-12 20:07 ` Chris Wilson
2012-07-13 8:34 ` Daniel Vetter
2012-07-13 8:49 ` Chris Wilson
2012-07-13 8:53 ` Chris Wilson
2012-07-13 9:05 ` Daniel Vetter
2012-07-12 15:13 ` [PATCH 4/6] drm/i915: Remove explicit flush from i915_gem_object_flush_fence() Chris Wilson
2012-07-12 15:13 ` [PATCH 5/6] drm/i915: Remove the explicit flush of the GPU write domain Chris Wilson
2012-07-12 15:13 ` [PATCH 6/6] drm/i915: Split i915_gem_flush_ring() into seperate invalidate/flush funcs Chris Wilson
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