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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586/* SPDX-License-Identifier: GPL-2.0 * * Copyright 2022 HabanaLabs, Ltd. * All Rights Reserved. * */
#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, \ .mmap = drm_gem_mmap, \ .fop_flags = FOP_UNSIGNED_OFFSET
/** * 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)
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_ */