On Thu, Jul 25, 2013 at 07:15:03PM +0200, Sedat Dilek wrote:
> On Thu, Jul 25, 2013 at 7:01 PM, Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> wrote:
> > Basically boils down to either an object allocation failure or mmaping
> > failure. I think dmesg with drm.debug=7 is the next step.
>
> Attached! Thanks for taking care.
Hmm, looks like i915_gem_map_gtt fails, but no reason given, so can you
please apply this for more debug:
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 0563661..34e09bf 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1630,24 +1630,29 @@ i915_gem_mmap_gtt(struct drm_file *file,
obj = to_intel_bo(drm_gem_object_lookup(dev, file, handle));
if (&obj->base == NULL) {
+ DRM_DRIVER_DEBUG("Unknown object handle %d\n", handle);
ret = -ENOENT;
goto unlock;
}
if (obj->base.size > dev_priv->gtt.mappable_end) {
+ DRM_DRIVER_DEBUG("Object (%d) larger than mappable aperture (%d) > %d\n",
+ (int)obj->base.size, (int)dev_priv->gtt.mappable_end);
ret = -E2BIG;
goto out;
}
if (obj->madv != I915_MADV_WILLNEED) {
- DRM_ERROR("Attempting to mmap a purgeable buffer\n");
+ DRM_DRIVER_DEBUG("Attempting to mmap a purgeable buffer\n");
ret = -EINVAL;
goto out;
}
ret = i915_gem_object_create_mmap_offset(obj);
- if (ret)
+ if (ret) {
+ DRM_DRIVER_DEBUG("Failed to allocate mmap offset (ret=%d)\n", ret);
goto out;
+ }
*offset = (u64)obj->base.map_list.hash.key << PAGE_SHIFT;
--
Chris Wilson, Intel Open Source Technology Centre
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