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     ˆÁÅƒOÀ¿Ã É    /* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_ERRNO_H
#define _LINUX_ERRNO_H

#include <uapi/linux/errno.h>


/*
 * These should never be seen by user programs.  To return one of ERESTART*
 * codes, signal_pending() MUST be set.  Note that ptrace can observe these
 * at syscall exit tracing, but they will never be left for the debugged user
 * process to see.
 */
#define ERESTARTSYS	512
#define ERESTARTNOINTR	513
#define ERESTARTNOHAND	514	/* restart if no handler.. */
#define ENOIOCTLCMD	515	/* No ioctl command */
#define ERESTART_RESTARTBLOCK 516 /* restart by calling sys_restart_syscall */
#define EPROBE_DEFER	517	/* Driver requests probe retry */
#define EOPENSTALE	518	/* open found a stale dentry */
#define ENOPARAM	519	/* Parameter not supported */

/* Defined for the NFSv3 protocol */
#define EBADHANDLE	521	/* Illegal NFS file handle */
#define ENOTSYNC	522	/* Update synchronization mismatch */
#define EBADCOOKIE	523	/* Cookie is stale */
#define ENOTSUPP	524	/* Operation is not supported */
#define ETOOSMALL	525	/* Buffer or request is too small */
#define ESERVERFAULT	526	/* An untranslatable error occurred */
#define EBADTYPE	527	/* Type not supported by server */
#define EJUKEBOX	528	/* Request initiated, but will not complete before timeout */
#define EIOCBQUEUED	529	/* iocb queued, will get completion event */
#define ERECALLCONFLICT	530	/* conflict with recalled state */
#define ENOGRACE	531	/* NFS file lock reclaim refused */

#endif
     ˆÁÅƒi÷ZÀ¿Ã n    // SPDX-License-Identifier: GPL-2.0

#ifndef _DRM_MANAGED_H_
#define _DRM_MANAGED_H_

#include <linux/gfp.h>
#include <linux/overflow.h>
#include <linux/types.h>

struct drm_device;
struct mutex;

typedef void (*drmres_release_t)(struct drm_device *dev, void *res);

/**
 * drmm_add_action - add a managed release action to a &drm_device
 * @dev: DRM device
 * @action: function which should be called when @dev is released
 * @data: opaque pointer, passed to @action
 *
 * This function adds the @release action with optional parameter @data to the
 * list of cleanup actions for @dev. The cleanup actions will be run in reverse
 * order in the final drm_dev_put() call for @dev.
 */
#define drmm_add_action(dev, action, data) \
	__drmm_add_action(dev, action, data, #action)

int __must_check __drmm_add_action(struct drm_device *dev,
				   drmres_release_t action,
				   void *data, const char *name);

/**
 * drmm_add_action_or_reset - add a managed release action to a &drm_device
 * @dev: DRM device
 * @action: function which should be called when @dev is released
 * @data: opaque pointer, passed to @action
 *
 * Similar to drmm_add_action(), with the only difference that upon failure
 * @action is directly called for any cleanup work necessary on failures.
 */
#define drmm_add_action_or_reset(dev, action, data) \
	__drmm_add_action_or_reset(dev, action, data, #action)

int __must_check __drmm_add_action_or_reset(struct drm_device *dev,
					    drmres_release_t action,
					    void *data, const char *name);

void drmm_release_action(struct drm_device *dev,
			 drmres_release_t action,
			 void *data);

void *drmm_kmalloc(struct drm_device *dev, size_t size, gfp_t gfp) __malloc;

/**
 * drmm_kzalloc - &drm_device managed kzalloc()
 * @dev: DRM device
 * @size: size of the memory allocation
 * @gfp: GFP allocation flags
 *
 * This is a &drm_device managed version of kzalloc(). The allocated memory is
 * automatically freed on the final drm_dev_put(). Memory can also be freed
 * before the final drm_dev_put() by calling drmm_kfree().
 */
static inline void *drmm_kzalloc(struct drm_device *dev, size_t size, gfp_t gfp)
{
	return drmm_kmalloc(dev, size, gfp | __GFP_ZERO);
}

/**
 * drmm_kmalloc_array - &drm_device managed kmalloc_array()
 * @dev: DRM device
 * @n: number of array elements to allocate
 * @size: size of array member
 * @flags: GFP allocation flags
 *
 * This is a &drm_device managed version of kmalloc_array(). The allocated
 * memory is automatically freed on the final drm_dev_put() and works exactly
 *