Re: [PATCH] drm/i915: Set the map-and-fenceable flag for preallocated objects

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On Thu, Aug 27, 2015 at 09:19:18AM -0700, Jesse Barnes wrote:
> On 08/27/2015 01:36 AM, Jani Nikula wrote:
> > On Wed, 26 Aug 2015, Daniel Vetter <daniel@xxxxxxxx> wrote:
> >> On Wed, Aug 26, 2015 at 12:55:57PM +0100, Chris Wilson wrote:
> >>> As we mark the preallocated objects as bound, we should also flag them
> >>> correctly as being map-and-fenceable (if appropriate!) so that latter
> >>> users do not get confused and try and rebind the pinned vma in order to
> >>> get a map-and-fenceable binding.
> >>>
> >>> Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
> >>> Cc: "Goel, Akash" <akash.goel@xxxxxxxxx>
> >>> Cc: Daniel Vetter <daniel.vetter@xxxxxxxx>
> >>> Cc: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx>
> >>> Cc: stable@xxxxxxxxxxxxxxx
> >>
> >> Reviewed-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
> >>
> >> Jani, can you please pick up both? And some bugzilla references for either
> >> would be great too - Chris?
> > 
> > Both pushed to drm-intel-next-fixes. Thanks for the patches and review.
> 
> This one breaks my HSW.  I hit the warn in 
> 
> 
> int
> i915_gem_object_ggtt_pin(struct drm_i915_gem_object *obj,
> 			 const struct i915_ggtt_view *view,
> 			 uint32_t alignment,
> 			 uint64_t flags)
> {
> 	if (WARN_ONCE(!view, "no view specified"))
> 		return -EINVAL;
> 
> 	return i915_gem_object_do_pin(obj, i915_obj_to_ggtt(obj), view,
> 				      alignment, flags | PIN_GLOBAL);
> }
> 
> and the fb console doesn't come up.  Is this a merge error somehow?  I don't see how it could have worked... maybe w/o fbdev enabled or something?

No, it was just written against a different pin interface.

Use i915_gem_obj_ggtt_pin() instead.

Exactly.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre
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