drivers/gpu/drm/i915/i915_drm_client.h

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/i915/i915_drm_client.h

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/i915/i915_drm_client.h
Extension
.h
Size
2165 bytes
Lines
93
Domain
Driver Families
Bucket
drivers/gpu
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

struct i915_drm_client {
	struct kref kref;

	spinlock_t ctx_lock; /* For add/remove from ctx_list. */
	struct list_head ctx_list; /* List of contexts belonging to client. */

#ifdef CONFIG_PROC_FS
	/**
	 * @objects_lock: lock protecting @objects_list
	 */
	spinlock_t objects_lock;

	/**
	 * @objects_list: list of objects created by this client
	 *
	 * Protected by @objects_lock.
	 */
	struct list_head objects_list;
#endif

	/**
	 * @past_runtime: Accumulation of pphwsp runtimes from closed contexts.
	 */
	atomic64_t past_runtime[I915_LAST_UABI_ENGINE_CLASS + 1];
};

static inline struct i915_drm_client *
i915_drm_client_get(struct i915_drm_client *client)
{
	kref_get(&client->kref);
	return client;
}

void __i915_drm_client_free(struct kref *kref);

static inline void i915_drm_client_put(struct i915_drm_client *client)
{
	kref_put(&client->kref, __i915_drm_client_free);
}

struct i915_drm_client *i915_drm_client_alloc(void);

void i915_drm_client_fdinfo(struct drm_printer *p, struct drm_file *file);

#ifdef CONFIG_PROC_FS
void i915_drm_client_add_object(struct i915_drm_client *client,
				struct drm_i915_gem_object *obj);
void i915_drm_client_remove_object(struct drm_i915_gem_object *obj);
void i915_drm_client_add_context_objects(struct i915_drm_client *client,
					 struct intel_context *ce);
#else
static inline void i915_drm_client_add_object(struct i915_drm_client *client,
					      struct drm_i915_gem_object *obj)
{
}

static inline void
i915_drm_client_remove_object(struct drm_i915_gem_object *obj)
{
}

static inline void
i915_drm_client_add_context_objects(struct i915_drm_client *client,
				    struct intel_context *ce)
{
}
#endif

#endif /* !__I915_DRM_CLIENT_H__ */

Annotation

Implementation Notes