1// SPDX-License-Identifier: MIT
 2/*
 3 * Copyright © 2019 Intel Corporation
 4 */
 5
 6#include "intel_memory_region.h"
 7#include "gem/i915_gem_region.h"
 8#include "gem/i915_gem_lmem.h"
 9#include "i915_drv.h"
10
11const struct drm_i915_gem_object_ops i915_gem_lmem_obj_ops = {
12	.name = "i915_gem_object_lmem",
13	.flags = I915_GEM_OBJECT_HAS_IOMEM,
14
15	.get_pages = i915_gem_object_get_pages_buddy,
16	.put_pages = i915_gem_object_put_pages_buddy,
17	.release = i915_gem_object_release_memory_region,
18};
19
20bool i915_gem_object_is_lmem(struct drm_i915_gem_object *obj)
21{
22	return obj->ops == &i915_gem_lmem_obj_ops;
23}
24
25struct drm_i915_gem_object *
26i915_gem_object_create_lmem(struct drm_i915_private *i915,
27			    resource_size_t size,
28			    unsigned int flags)
29{
30	return i915_gem_object_create_region(i915->mm.regions[INTEL_REGION_LMEM],
31					     size, flags);
32}
33
34struct drm_i915_gem_object *
35__i915_gem_lmem_object_create(struct intel_memory_region *mem,
36			      resource_size_t size,
37			      unsigned int flags)
38{
39	static struct lock_class_key lock_class;
40	struct drm_i915_private *i915 = mem->i915;
41	struct drm_i915_gem_object *obj;
42
43	obj = i915_gem_object_alloc();
44	if (!obj)
45		return ERR_PTR(-ENOMEM);
46
47	drm_gem_private_object_init(&i915->drm, &obj->base, size);
48	i915_gem_object_init(obj, &i915_gem_lmem_obj_ops, &lock_class);
49
50	obj->read_domains = I915_GEM_DOMAIN_WC | I915_GEM_DOMAIN_GTT;
51
52	i915_gem_object_set_cache_coherency(obj, I915_CACHE_NONE);
53
54	i915_gem_object_init_memory_region(obj, mem, flags);
55
56	return obj;
57}