On Wed, Feb 15, 2017 at 02:54:40PM +0200, Joonas Lahtinen wrote:
> On ke, 2017-02-08 at 16:54 +0000, Chris Wilson wrote:
> > We first wait for a request to be submitted to hw and assigned a seqno,
> > before we can wait for the hw to signal completion (otherwise we don't
> > know the hw id we need to wait upon). Whilst waiting for the request to
> > be submitted, we may exceed the user's timeout and need to propagate the
> > error back.
> >
> > Reported-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
> > Fixes: 4680816be336 ("drm/i915: Wait first for submission, before waiting for request completion")
> > Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
> > Cc: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
> > Cc: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>
> > Cc: <drm-intel-fixes@xxxxxxxxxxxxxxxxxxxxx> # v4.10-rc1+
>
> <SNIP>
>
> > +++ b/drivers/gpu/drm/i915/i915_gem_request.c
> > @@ -1084,6 +1084,9 @@ long i915_wait_request(struct drm_i915_gem_request *req,
> > if (timeout < 0)
> > goto complete;
> >
> > + if (!timeout)
> > + return -ETIME;
> > +
>
> Misses the tracepoint, if that's deliberate;
Hmm, this should be ret = -ETIME; goto complete; It is at the end of the
series, or at least at the end in my current tree.
Ah, yes, v2 of this patch is already in the tree. Thanks,
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
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