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drm/i915: Allow i915_gem_setup_global_gtt to fail

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We already needs this just as a safety check in case the preallocation
reservation dance fails. But we definitely need this to be able to
move tha aliasing ppgtt setup back out of the context code to this
place, where it belongs.

Reviewed-by: Michel Thierry <michel.thierry@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2014-08-06 15:04:50 +02:00
parent 5dc383b05a
commit 6c5566a82c
3 changed files with 18 additions and 9 deletions
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7
drivers/gpu/drm/i915/i915_gem.c
View File

@ -4754,7 +4754,12 @@ int i915_gem_init(struct drm_device *dev)
dev_priv->gt.stop_ring = intel_logical_ring_stop;
}
i915_gem_init_userptr(dev);
ret = i915_gem_init_userptr(dev);
if (ret) {
mutex_unlock(&dev->struct_mutex);
return ret;
}
i915_gem_init_global_gtt(dev);
ret = i915_gem_context_init(dev);

16
drivers/gpu/drm/i915/i915_gem_gtt.c
View File

@ -1698,10 +1698,10 @@ static void i915_gtt_color_adjust(struct drm_mm_node *node,
}
}
void i915_gem_setup_global_gtt(struct drm_device *dev,
unsigned long start,
unsigned long mappable_end,
unsigned long end)
int i915_gem_setup_global_gtt(struct drm_device *dev,
unsigned long start,
unsigned long mappable_end,
unsigned long end)
{
/* Let GEM Manage all of the aperture.
*
@ -1734,8 +1734,10 @@ void i915_gem_setup_global_gtt(struct drm_device *dev,
WARN_ON(i915_gem_obj_ggtt_bound(obj));
ret = drm_mm_reserve_node(&ggtt_vm->mm, &vma->node);
if (ret)
DRM_DEBUG_KMS("Reservation failed\n");
if (ret) {
DRM_DEBUG_KMS("Reservation failed: %i\n", ret);
return ret;
}
obj->has_global_gtt_mapping = 1;
}
@ -1752,6 +1754,8 @@ void i915_gem_setup_global_gtt(struct drm_device *dev,
/* And finally clear the reserved guard page */
ggtt_vm->clear_range(ggtt_vm, end - PAGE_SIZE, PAGE_SIZE, true);
return 0;
}
void i915_gem_init_global_gtt(struct drm_device *dev)

4
drivers/gpu/drm/i915/i915_gem_gtt.h
View File

@ -271,8 +271,8 @@ struct i915_hw_ppgtt {
int i915_gem_gtt_init(struct drm_device *dev);
void i915_gem_init_global_gtt(struct drm_device *dev);
void i915_gem_setup_global_gtt(struct drm_device *dev, unsigned long start,
unsigned long mappable_end, unsigned long end);
int i915_gem_setup_global_gtt(struct drm_device *dev, unsigned long start,
unsigned long mappable_end, unsigned long end);
int i915_ppgtt_init(struct drm_device *dev, struct i915_hw_ppgtt *ppgtt);