Re: [PATCH] drm/i915: Don't try to tear down the stolen drm_mm if it's not there

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On Tue, Jul 02, 2013 at 10:25:17AM +0100, Chris Wilson wrote:
> On Tue, Jul 02, 2013 at 10:48:31AM +0200, Daniel Vetter wrote:
> > Every other place properly checks whether we've managed to set
> > up the stolen allocator at boot-up properly, with the exception
> > of the cleanup code. Which results in an ugly
> > 
> > *ERROR* Memory manager not clean. Delaying takedown
> > 
> > at module unload time since the drm_mm isn't initialized at all.
> > 
> > v2: While at it check whether the stolen drm_mm is initialized instead
> > of the more obscure stolen_base == 0 check.
> > 
> > v3: Fix up the logic. Also we need to keep the stolen_base check in
> > i915_gem_object_create_stolen_for_preallocated since that can be
> > called before stolen memory is fully set up. Spotted by Chris Wilson.
> > 
> > v4: Readd the conversion in i915_gem_object_create_stolen_for_preallocated,
> > the check is for the dev_priv->mm.gtt_space drm_mm, the stolen
> > allocatot must already be initialized when calling that function (if
> > we indeed have stolen memory).
> > 
> > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=65953
> > Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
> > Tested-by: lu hua <huax.lu@xxxxxxxxx> (v3)
> > Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
> 
> Reviewed-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>

Thanks for the review, merged to -fixes.
> 
> Once thing I noticed is that we should probably warn if vlv_reserved >=
> stolen_size.

I've added that patch to my queue, I'll submit it together with the gm45
reset fixes (once QA has tested them).
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
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