include/drm/drm_accel.h

Source file repositories/reference/linux-study-clean/include/drm/drm_accel.h

File Facts

System
Linux kernel
Corpus path
include/drm/drm_accel.h
Extension
.h
Size
2227 bytes
Lines
86
Domain
Repository Root And Misc
Bucket
include
Inferred role
Repository Root And Misc: operation-table or driver-model contract
Status
pattern implementation candidate

Why This File Exists

Top-level or miscellaneous repository surface. Use this as map coverage unless a later manual pass promotes the file into a deeper subsystem dossier.

Dependency Surface

Detected Declarations

Annotated Snippet

* This macro autogenerates a suitable &struct file_operations for accelerators based
 * drivers, which can be assigned to &drm_driver.fops. Note that this structure
 * cannot be shared between drivers, because it contains a reference to the
 * current module using THIS_MODULE.
 *
 * Note that the declaration is already marked as static - if you need a
 * non-static version of this you're probably doing it wrong and will break the
 * THIS_MODULE reference by accident.
 */
#define DEFINE_DRM_ACCEL_FOPS(name) \
	static const struct file_operations name = {\
		.owner		= THIS_MODULE,\
		DRM_ACCEL_FOPS,\
	}

#if IS_ENABLED(CONFIG_DRM_ACCEL)

extern struct xarray accel_minors_xa;

void accel_core_exit(void);
int accel_core_init(void);
void accel_set_device_instance_params(struct device *kdev, int index);
int accel_open(struct inode *inode, struct file *filp);
void accel_debugfs_register(struct drm_device *dev);

#else

static inline void accel_core_exit(void)
{
}

static inline int __init accel_core_init(void)
{
	/* Return 0 to allow drm_core_init to complete successfully */
	return 0;
}

static inline void accel_set_device_instance_params(struct device *kdev, int index)
{
}

static inline void accel_debugfs_register(struct drm_device *dev)
{
}

#endif /* IS_ENABLED(CONFIG_DRM_ACCEL) */

#endif /* DRM_ACCEL_H_ */

Annotation

Implementation Notes