1 /* SPDX-License-Identifier: MIT */
2 /*
3  * Copyright © 2023 Intel Corporation
4  */
5 
6 #ifndef _XE_DRM_CLIENT_H_
7 #define _XE_DRM_CLIENT_H_
8 
9 #include <linux/kref.h>
10 #include <linux/list.h>
11 #include <linux/pid.h>
12 #include <linux/rcupdate.h>
13 #include <linux/sched.h>
14 #include <linux/spinlock.h>
15 
16 struct drm_file;
17 struct drm_printer;
18 struct xe_bo;
19 
20 struct xe_drm_client {
21 	struct kref kref;
22 	unsigned int id;
23 #ifdef CONFIG_PROC_FS
24 	/**
25 	 * @bos_lock: lock protecting @bos_list
26 	 */
27 	spinlock_t bos_lock;
28 	/**
29 	 * @bos_list: list of bos created by this client
30 	 *
31 	 * Protected by @bos_lock.
32 	 */
33 	struct list_head bos_list;
34 #endif
35 };
36 
37 	static inline struct xe_drm_client *
xe_drm_client_get(struct xe_drm_client * client)38 xe_drm_client_get(struct xe_drm_client *client)
39 {
40 	kref_get(&client->kref);
41 	return client;
42 }
43 
44 void __xe_drm_client_free(struct kref *kref);
45 
xe_drm_client_put(struct xe_drm_client * client)46 static inline void xe_drm_client_put(struct xe_drm_client *client)
47 {
48 	kref_put(&client->kref, __xe_drm_client_free);
49 }
50 
51 struct xe_drm_client *xe_drm_client_alloc(void);
52 static inline struct xe_drm_client *
53 xe_drm_client_get(struct xe_drm_client *client);
54 static inline void xe_drm_client_put(struct xe_drm_client *client);
55 #ifdef CONFIG_PROC_FS
56 void xe_drm_client_fdinfo(struct drm_printer *p, struct drm_file *file);
57 void xe_drm_client_add_bo(struct xe_drm_client *client,
58 			  struct xe_bo *bo);
59 void xe_drm_client_remove_bo(struct xe_bo *bo);
60 #else
xe_drm_client_add_bo(struct xe_drm_client * client,struct xe_bo * bo)61 static inline void xe_drm_client_add_bo(struct xe_drm_client *client,
62 					struct xe_bo *bo)
63 {
64 }
65 
xe_drm_client_remove_bo(struct xe_bo * bo)66 static inline void xe_drm_client_remove_bo(struct xe_bo *bo)
67 {
68 }
69 #endif
70 #endif
71