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/*
* Copyright © 2010 Daniel Vetter
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
*/
#include "drmP.h"
#include "drm.h"
#include "i915_drm.h"
#include "i915_drv.h"
#include "i915_trace.h"
#include "intel_drv.h"
void i915_gem_restore_gtt_mappings(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
struct drm_i915_gem_object *obj_priv;
int ret;
list_for_each_entry(obj_priv,
&dev_priv->mm.gtt_list,
gtt_list) {
/* Hack to force agp to reinsert buffer object. */
obj_priv->agp_mem->is_bound = false;
ret = agp_bind_memory(obj_priv->agp_mem, obj_priv->gtt_space->start / PAGE_SIZE);
BUG_ON(ret != 0);
}
/* Be paranoid and flush the chipset cache. */
intel_gtt_chipset_flush();
}
int i915_gem_gtt_bind_object(struct drm_gem_object *obj)
{
struct drm_device *dev = obj->dev;
struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
/* Create an AGP memory structure pointing at our pages, and bind it
* into the GTT.
*/
obj_priv->agp_mem = drm_agp_bind_pages(dev,
obj_priv->pages,
obj->size >> PAGE_SHIFT,
obj_priv->gtt_space->start,
obj_priv->agp_type);
if (obj_priv->agp_mem)
return 0;
else
return -ENOMEM;
}
void i915_gem_gtt_unbind_object(struct drm_gem_object *obj)
{
struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
drm_unbind_agp(obj_priv->agp_mem);
drm_free_agp(obj_priv->agp_mem, obj->size / PAGE_SIZE);
}
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