1 /* SPDX-License-Identifier: GPL-2.0 1
2 *
3 * Copyright 2022 HabanaLabs, Ltd.
4 * All Rights Reserved.
5 *
6 */
7
8 #ifndef DRM_ACCEL_H_
9 #define DRM_ACCEL_H_
10
11 #include <drm/drm_file.h>
12
13 #define ACCEL_MAJOR 261
14 #define ACCEL_MAX_MINORS 256
15
16 /**
17 * DRM_ACCEL_FOPS - Default drm accelerators f
18 *
19 * This macro provides a shorthand for setting
20 * &file_operations structure. If all you nee
21 * DEFINE_DRM_ACCEL_FOPS instead.
22 */
23 #define DRM_ACCEL_FOPS \
24 .open = accel_open,\
25 .release = drm_release,\
26 .unlocked_ioctl = drm_ioctl,\
27 .compat_ioctl = drm_compat_ioctl,\
28 .poll = drm_poll,\
29 .read = drm_read,\
30 .llseek = noop_llseek, \
31 .mmap = drm_gem_mmap, \
32 .fop_flags = FOP_UNSIGNED_OFFSET
33
34 /**
35 * DEFINE_DRM_ACCEL_FOPS() - macro to generate
36 * @name: name for the generated structure
37 *
38 * This macro autogenerates a suitable &struct
39 * drivers, which can be assigned to &drm_driv
40 * cannot be shared between drivers, because i
41 * current module using THIS_MODULE.
42 *
43 * Note that the declaration is already marked
44 * non-static version of this you're probably
45 * THIS_MODULE reference by accident.
46 */
47 #define DEFINE_DRM_ACCEL_FOPS(name) \
48 static const struct file_operations na
49 .owner = THIS_MODULE,
50 DRM_ACCEL_FOPS,\
51 }
52
53 #if IS_ENABLED(CONFIG_DRM_ACCEL)
54
55 extern struct xarray accel_minors_xa;
56
57 void accel_core_exit(void);
58 int accel_core_init(void);
59 void accel_set_device_instance_params(struct d
60 int accel_open(struct inode *inode, struct fil
61 void accel_debugfs_init(struct drm_device *dev
62 void accel_debugfs_register(struct drm_device
63
64 #else
65
66 static inline void accel_core_exit(void)
67 {
68 }
69
70 static inline int __init accel_core_init(void)
71 {
72 /* Return 0 to allow drm_core_init to
73 return 0;
74 }
75
76 static inline void accel_set_device_instance_p
77 {
78 }
79
80 static inline void accel_debugfs_init(struct d
81 {
82 }
83
84 static inline void accel_debugfs_register(stru
85 {
86 }
87
88 #endif /* IS_ENABLED(CONFIG_DRM_ACCEL) */
89
90 #endif /* DRM_ACCEL_H_ */
91
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