| /* |
| * 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; |
| |
| list_for_each_entry(obj, &dev_priv->mm.gtt_list, gtt_list) { |
| i915_gem_clflush_object(obj); |
| |
| if (dev_priv->mm.gtt->needs_dmar) { |
| BUG_ON(!obj->sg_list); |
| |
| intel_gtt_insert_sg_entries(obj->sg_list, |
| obj->num_sg, |
| obj->gtt_space->start |
| >> PAGE_SHIFT, |
| obj->agp_type); |
| } else |
| intel_gtt_insert_pages(obj->gtt_space->start |
| >> PAGE_SHIFT, |
| obj->base.size >> PAGE_SHIFT, |
| obj->pages, |
| obj->agp_type); |
| } |
| |
| intel_gtt_chipset_flush(); |
| } |
| |
| int i915_gem_gtt_bind_object(struct drm_i915_gem_object *obj) |
| { |
| struct drm_device *dev = obj->base.dev; |
| struct drm_i915_private *dev_priv = dev->dev_private; |
| int ret; |
| |
| if (dev_priv->mm.gtt->needs_dmar) { |
| ret = intel_gtt_map_memory(obj->pages, |
| obj->base.size >> PAGE_SHIFT, |
| &obj->sg_list, |
| &obj->num_sg); |
| if (ret != 0) |
| return ret; |
| |
| intel_gtt_insert_sg_entries(obj->sg_list, |
| obj->num_sg, |
| obj->gtt_space->start >> PAGE_SHIFT, |
| obj->agp_type); |
| } else |
| intel_gtt_insert_pages(obj->gtt_space->start >> PAGE_SHIFT, |
| obj->base.size >> PAGE_SHIFT, |
| obj->pages, |
| obj->agp_type); |
| |
| return 0; |
| } |
| |
| void i915_gem_gtt_unbind_object(struct drm_i915_gem_object *obj) |
| { |
| struct drm_device *dev = obj->base.dev; |
| struct drm_i915_private *dev_priv = dev->dev_private; |
| |
| if (dev_priv->mm.gtt->needs_dmar) { |
| intel_gtt_unmap_memory(obj->sg_list, obj->num_sg); |
| obj->sg_list = NULL; |
| obj->num_sg = 0; |
| } |
| |
| intel_gtt_clear_range(obj->gtt_space->start >> PAGE_SHIFT, |
| obj->base.size >> PAGE_SHIFT); |
| } |