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__ */ 53