1// SPDX-License-Identifier: MIT
 2/* Copyright © 2024 Intel Corporation */
 3
 4#include <drm/drm_gem.h>
 5
 6#include "xe_bo.h"
 7#include "intel_bo.h"
 8
 9bool intel_bo_is_tiled(struct drm_gem_object *obj)
10{
11	/* legacy tiling is unused */
12	return false;
13}
14
15bool intel_bo_is_userptr(struct drm_gem_object *obj)
16{
17	/* xe does not have userptr bos */
18	return false;
19}
20
21bool intel_bo_is_shmem(struct drm_gem_object *obj)
22{
23	return false;
24}
25
26bool intel_bo_is_protected(struct drm_gem_object *obj)
27{
28	return false;
29}
30
31void intel_bo_flush_if_display(struct drm_gem_object *obj)
32{
33}
34
35int intel_bo_fb_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma)
36{
37	return drm_gem_prime_mmap(obj, vma);
38}
39
40int intel_bo_read_from_page(struct drm_gem_object *obj, u64 offset, void *dst, int size)
41{
42	struct xe_bo *bo = gem_to_xe_bo(obj);
43	struct ttm_bo_kmap_obj map;
44	void *src;
45	bool is_iomem;
46	int ret;
47
48	ret = xe_bo_lock(bo, true);
49	if (ret)
50		return ret;
51
52	ret = ttm_bo_kmap(&bo->ttm, offset >> PAGE_SHIFT, 1, &map);
53	if (ret)
54		goto out_unlock;
55
56	offset &= ~PAGE_MASK;
57	src = ttm_kmap_obj_virtual(&map, &is_iomem);
58	src += offset;
59	if (is_iomem)
60		memcpy_fromio(dst, (void __iomem *)src, size);
61	else
62		memcpy(dst, src, size);
63
64	ttm_bo_kunmap(&map);
65out_unlock:
66	xe_bo_unlock(bo);
67	return ret;
68}
69
70struct intel_frontbuffer *intel_bo_get_frontbuffer(struct drm_gem_object *obj)
71{
72	return NULL;
73}
74
75struct intel_frontbuffer *intel_bo_set_frontbuffer(struct drm_gem_object *obj,
76						   struct intel_frontbuffer *front)
77{
78	return front;
79}
80
81void intel_bo_describe(struct seq_file *m, struct drm_gem_object *obj)
82{
83	/* FIXME */
84}