LXR linux/include/linux/initrd.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2
   3#ifndef __LINUX_INITRD_H
   4#define __LINUX_INITRD_H
   5
   6#define INITRD_MINOR 250 /* shouldn't collide with /dev/ram* too soon ... */
   7
   8/* starting block # of image */
   9extern int rd_image_start;
  10
  11/* size of a single RAM disk */
  12extern unsigned long rd_size;
  13
  14/* 1 if it is not an error if initrd_start < memory_start */
  15extern int initrd_below_start_ok;
  16
  17/* free_initrd_mem always gets called with the next two as arguments.. */
  18extern unsigned long initrd_start, initrd_end;
  19extern void free_initrd_mem(unsigned long, unsigned long);
  20
  21#ifdef CONFIG_BLK_DEV_INITRD
  22extern void __init reserve_initrd_mem(void);
  23extern void wait_for_initramfs(void);
  24#else
  25static inline void __init reserve_initrd_mem(void) {}
  26static inline void wait_for_initramfs(void) {}
  27#endif
  28
  29extern phys_addr_t phys_initrd_start;
  30extern unsigned long phys_initrd_size;
  31
  32extern unsigned int real_root_dev;
  33
  34extern char __initramfs_start[];
  35extern unsigned long __initramfs_size;
  36
  37void console_on_rootfs(void);
  38
  39#endif /* __LINUX_INITRD_H */
  40