drm_accel.h

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/* 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
 
#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 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_ */