diff options
Diffstat (limited to 'include/drm/drm_accel.h')
-rw-r--r-- | include/drm/drm_accel.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/include/drm/drm_accel.h b/include/drm/drm_accel.h index e1758f484278..65c0affbd306 100644 --- a/include/drm/drm_accel.h +++ b/include/drm/drm_accel.h @@ -8,12 +8,56 @@ #ifndef DRM_ACCEL_H_ #define DRM_ACCEL_H_ +#include <drm/drm_file.h> + #define ACCEL_MAJOR 261 +#define ACCEL_MAX_MINORS 256 + +/** + * DRM_ACCEL_FOPS - Default drm accelerators file operations + * + * This macro provides a shorthand for setting the accelerator file ops in the + * &file_operations structure. If all you need are the default ops, use + * DEFINE_DRM_ACCEL_FOPS instead. + */ +#define DRM_ACCEL_FOPS \ + .open = accel_open,\ + .release = drm_release,\ + .unlocked_ioctl = drm_ioctl,\ + .compat_ioctl = drm_compat_ioctl,\ + .poll = drm_poll,\ + .read = drm_read,\ + .llseek = noop_llseek + +/** + * DEFINE_DRM_ACCEL_FOPS() - macro to generate file operations for accelerators drivers + * @name: name for the generated structure + * + * 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) void accel_core_exit(void); int accel_core_init(void); +void accel_minor_remove(int index); +int accel_minor_alloc(void); +void accel_minor_replace(struct drm_minor *minor, int index); +void accel_set_device_instance_params(struct device *kdev, int index); +int accel_open(struct inode *inode, struct file *filp); +void accel_debugfs_init(struct drm_minor *minor, int minor_id); #else @@ -27,6 +71,27 @@ static inline int __init accel_core_init(void) return 0; } +static inline void accel_minor_remove(int index) +{ +} + +static inline int accel_minor_alloc(void) +{ + return -EOPNOTSUPP; +} + +static inline void accel_minor_replace(struct drm_minor *minor, int index) +{ +} + +static inline void accel_set_device_instance_params(struct device *kdev, int index) +{ +} + +static inline void accel_debugfs_init(struct drm_minor *minor, int minor_id) +{ +} + #endif /* IS_ENABLED(CONFIG_DRM_ACCEL) */ #endif /* DRM_ACCEL_H_ */ |