drivers/gpu/drm/i915/i915_drm_client.h

   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
  21 struct drm_file;
  22 struct drm_printer;
  23
  24 struct 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
  50 static inline struct i915_drm_client *
  51 i915_drm_client_get(struct i915_drm_client *client)
  52 {
  53         kref_get(&client->kref);
  54         return client;
  55 }
  56
  57 void __i915_drm_client_free(struct kref *kref);
  58
  59 static inline void i915_drm_client_put(struct i915_drm_client *client)
  60 {
  61         kref_put(&client->kref, __i915_drm_client_free);
  62 }
  63
  64 struct i915_drm_client *i915_drm_client_alloc(void);
  65
  66 void i915_drm_client_fdinfo(struct drm_printer *p, struct drm_file *file);
  67
  68 #ifdef CONFIG_PROC_FS
  69 void i915_drm_client_add_object(struct i915_drm_client *client,
  70                                 struct drm_i915_gem_object *obj);
  71 void i915_drm_client_remove_object(struct drm_i915_gem_object *obj);
  72 void i915_drm_client_add_context_objects(struct i915_drm_client *client,
  73                                          struct intel_context *ce);
  74 #else
  75 static inline void i915_drm_client_add_object(struct i915_drm_client *client,
  76                                               struct drm_i915_gem_object *obj)
  77 {
  78 }
  79
  80 static inline void
  81 i915_drm_client_remove_object(struct drm_i915_gem_object *obj)
  82 {
  83 }
  84
  85 static inline void
  86 i915_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__ */