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 #define I915_LAST_UABI_ENGINE_CLASS I915_ENGINE_CLASS_COMPUTE
  16
  17 struct drm_file;
  18 struct drm_printer;
  19
  20 struct i915_drm_client {
  21         struct kref kref;
  22
  23         unsigned int id;
  24
  25         spinlock_t ctx_lock; /* For add/remove from ctx_list. */
  26         struct list_head ctx_list; /* List of contexts belonging to client. */
  27
  28         /**
  29          * @past_runtime: Accumulation of pphwsp runtimes from closed contexts.
  30          */
  31         atomic64_t past_runtime[I915_LAST_UABI_ENGINE_CLASS + 1];
  32 };
  33
  34 static inline struct i915_drm_client *
  35 i915_drm_client_get(struct i915_drm_client *client)
  36 {
  37         kref_get(&client->kref);
  38         return client;
  39 }
  40
  41 void __i915_drm_client_free(struct kref *kref);
  42
  43 static inline void i915_drm_client_put(struct i915_drm_client *client)
  44 {
  45         kref_put(&client->kref, __i915_drm_client_free);
  46 }
  47
  48 struct i915_drm_client *i915_drm_client_alloc(void);
  49
  50 void i915_drm_client_fdinfo(struct drm_printer *p, struct drm_file *file);
  51
  52 #endif /* !__I915_DRM_CLIENT_H__ */