/*
* Copyright © 2008-2015 Intel Corporation
*
* 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.
*
* Authors:
* Eric Anholt <eric@anholt.net>
*
*/
#include <linux/dma-fence-array.h>
#include <linux/kthread.h>
#include <linux/dma-resv.h>
#include <linux/shmem_fs.h>
#include <linux/slab.h>
#include <linux/stop_machine.h>
#include <linux/swap.h>
#include <linux/pci.h>
#include <linux/dma-buf.h>
#include <linux/mman.h>
#include <drm/drm_cache.h>
#include <drm/drm_vma_manager.h>
#include "display/intel_display.h"
#include "display/intel_frontbuffer.h"
#include "gem/i915_gem_clflush.h"
#include "gem/i915_gem_context.h"
#include "gem/i915_gem_ioctls.h"
#include "gem/i915_gem_mman.h"
#include "gem/i915_gem_pm.h"
#include "gem/i915_gem_region.h"
#include "gem/i915_gem_userptr.h"
#include "gt/intel_engine_user.h"
#include "gt/intel_gt.h"
#include "gt/intel_gt_pm.h"
#include "gt/intel_workarounds.h"
#include "i915_drv.h"
#include "i915_file_private.h"
#include "i915_trace.h"
#include "i915_vgpu.h"
#include "intel_pm.h"
static int
insert_mappable_node(struct i915_ggtt *ggtt, struct drm_mm_node *node, u32 size)
{
int err;
err = mutex_lock_interruptible(&ggtt->vm.mutex);
if (err)
return err;
memset(node, 0, sizeof(*node));
err = drm_mm_insert_node_in_range(&ggtt->vm.mm, node,
size, 0, I915_COLOR_UNEVICTABLE,
0, ggtt->mappable_end,
DRM_MM_INSERT_LOW);
mutex_unlock(&ggtt->vm.mutex);
return err;
}
static void
remove_mappable_node(struct i915_ggtt *ggtt, struct drm_mm_node *node)
{
mutex_lock(&ggtt->vm.mutex);
drm_mm_remove_node(node);
mutex_unlock(&ggtt->vm.mutex);
}
int
i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data,
struct drm_file *file)
{
struct drm_i915_private *i915 = to_i915(dev);
struct i915_ggtt *ggtt = to_gt(i915)->ggtt;
struct 