/*
* Copyright © 2016 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.
*
*/
#include <linux/sched/mm.h>
#include <drm/drm_gem.h>
#include "display/intel_frontbuffer.h"
#include "gt/intel_engine.h"
#include "gt/intel_engine_heartbeat.h"
#include "gt/intel_gt.h"
#include "gt/intel_gt_requests.h"
#include "i915_drv.h"
#include "i915_globals.h"
#include "i915_sw_fence_work.h"
#include "i915_trace.h"
#include "i915_vma.h"
static struct i915_global_vma {
struct i915_global base;
struct kmem_cache *slab_vmas;
} global;
struct i915_vma *i915_vma_alloc(void)
{
return kmem_cache_zalloc(global.slab_vmas, GFP_KERNEL);
}
void i915_vma_free(struct i915_vma *vma)
{
return kmem_cache_free(global.slab_vmas, vma);
}
#if IS_ENABLED(CONFIG_DRM_I915_ERRLOG_GEM) && IS_ENABLED(CONFIG_DRM_DEBUG_MM)
#include <linux/stackdepot.h>
static void vma_print_allocator(struct i915_vma *vma, const char *reason)
{
unsigned long *entries;
unsigned int nr_entries;
char buf[512];
if (!vma->node.stack) {
DRM_DEBUG_DRIVER("vma.node [%08llx + %08llx] %s: unknown owner\n",
vma->node.start, vma->node.size, reason);
return;
}
nr_entries = stack_depot_fetch(vma->node.stack, &entries);
stack_trace_snprint(buf, sizeof(buf), entries, nr_entries, 0);
DRM_DEBUG_DRIVER("vma.node [%08llx + %08llx] %s: inserted at %s\n"