1/* SPDX-License-Identifier: MIT */
2/*
3 * Copyright �� 2020 Intel Corporation
4 */
5
6#ifndef __I915_DRM_CLIENT_H__
7#define __I915_DRM_CLIENT_H__
8
9#include <linux/kref.h>
10#include <linux/list.h>
11#include <linux/spinlock.h>
12
13#include <uapi/drm/i915_drm.h>
14
15#include "i915_file_private.h"
16#include "gem/i915_gem_object_types.h"
17#include "gt/intel_context_types.h"
18
19#define I915_LAST_UABI_ENGINE_CLASS I915_ENGINE_CLASS_COMPUTE
20
21struct drm_file;
22struct drm_printer;
23
24struct i915_drm_client {
25	struct kref kref;
26
27	spinlock_t ctx_lock; /* For add/remove from ctx_list. */
28	struct list_head ctx_list; /* List of contexts belonging to client. */
29
30#ifdef CONFIG_PROC_FS
31	/**
32	 * @objects_lock: lock protecting @objects_list
33	 */
34	spinlock_t objects_lock;
35
36	/**
37	 * @objects_list: list of objects created by this client
38	 *
39	 * Protected by @objects_lock.
40	 */
41	struct list_head objects_list;
42#endif
43
44	/**
45	 * @past_runtime: Accumulation of pphwsp runtimes from closed contexts.
46	 */
47	atomic64_t past_runtime[I915_LAST_UABI_ENGINE_CLASS + 1];
48};
49
50static inline struct i915_drm_client *
51i915_drm_client_get(struct i915_drm_client *client)
52{
53	kref_get(&client->kref);
54	return client;
55}
56
57void __i915_drm_client_free(struct kref *kref);
58
59static inline void i915_drm_client_put(struct i915_drm_client *client)
60{
61	kref_put(&client->kref, __i915_drm_client_free);
62}
63
64struct i915_drm_client *i915_drm_client_alloc(void);
65
66void i915_drm_client_fdinfo(struct drm_printer *p, struct drm_file *file);
67
68#ifdef CONFIG_PROC_FS
69void i915_drm_client_add_object(struct i915_drm_client *client,
70				struct drm_i915_gem_object *obj);
71void i915_drm_client_remove_object(struct drm_i915_gem_object *obj);
72void i915_drm_client_add_context_objects(struct i915_drm_client *client,
73					 struct intel_context *ce);
74#else
75static inline void i915_drm_client_add_object(struct i915_drm_client *client,
76					      struct drm_i915_gem_object *obj)
77{
78}
79
80static inline void
81i915_drm_client_remove_object(struct drm_i915_gem_object *obj)
82{
83}
84
85static inline void
86i915_drm_client_add_context_objects(struct i915_drm_client *client,
87				    struct intel_context *ce)
88{
89}
90#endif
91
92#endif /* !__I915_DRM_CLIENT_H__ */
93