93dfb40cd8
... to clarify just how we use it inside the driver and remove the confusion of the poorly matching agp_type names. We still need to translate through agp_type for interface into the fake AGP driver. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Eric Anholt <eric@anholt.net> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Keith Packard <keithp@keithp.com>
123 lines
3.6 KiB
C
123 lines
3.6 KiB
C
/*
|
|
* 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"
|
|
|
|
/* XXX kill agp_type! */
|
|
static unsigned int cache_level_to_agp_type(struct drm_device *dev,
|
|
enum i915_cache_level cache_level)
|
|
{
|
|
switch (cache_level) {
|
|
case I915_CACHE_LLC_MLC:
|
|
if (INTEL_INFO(dev)->gen >= 6)
|
|
return AGP_USER_CACHED_MEMORY_LLC_MLC;
|
|
/* Older chipsets do not have this extra level of CPU
|
|
* cacheing, so fallthrough and request the PTE simply
|
|
* as cached.
|
|
*/
|
|
case I915_CACHE_LLC:
|
|
return AGP_USER_CACHED_MEMORY;
|
|
default:
|
|
case I915_CACHE_NONE:
|
|
return AGP_USER_MEMORY;
|
|
}
|
|
}
|
|
|
|
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;
|
|
|
|
/* First fill our portion of the GTT with scratch pages */
|
|
intel_gtt_clear_range(dev_priv->mm.gtt_start / PAGE_SIZE,
|
|
(dev_priv->mm.gtt_end - dev_priv->mm.gtt_start) / PAGE_SIZE);
|
|
|
|
list_for_each_entry(obj, &dev_priv->mm.gtt_list, gtt_list) {
|
|
unsigned int agp_type =
|
|
cache_level_to_agp_type(dev, obj->cache_level);
|
|
|
|
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,
|
|
agp_type);
|
|
} else
|
|
intel_gtt_insert_pages(obj->gtt_space->start
|
|
>> PAGE_SHIFT,
|
|
obj->base.size >> PAGE_SHIFT,
|
|
obj->pages,
|
|
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;
|
|
unsigned int agp_type = cache_level_to_agp_type(dev, obj->cache_level);
|
|
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,
|
|
agp_type);
|
|
} else
|
|
intel_gtt_insert_pages(obj->gtt_space->start >> PAGE_SHIFT,
|
|
obj->base.size >> PAGE_SHIFT,
|
|
obj->pages,
|
|
agp_type);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void i915_gem_gtt_unbind_object(struct drm_i915_gem_object *obj)
|
|
{
|
|
intel_gtt_clear_range(obj->gtt_space->start >> PAGE_SHIFT,
|
|
obj->base.size >> PAGE_SHIFT);
|
|
|
|
if (obj->sg_list) {
|
|
intel_gtt_unmap_memory(obj->sg_list, obj->num_sg);
|
|
obj->sg_list = NULL;
|
|
}
|
|
}
|