| 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 */ |
| 9 | extern int rd_image_start; |
| 10 | |
| 11 | /* size of a single RAM disk */ |
| 12 | extern unsigned long rd_size; |
| 13 | |
| 14 | /* 1 if it is not an error if initrd_start < memory_start */ |
| 15 | extern int initrd_below_start_ok; |
| 16 | |
| 17 | /* free_initrd_mem always gets called with the next two as arguments.. */ |
| 18 | extern unsigned long initrd_start, initrd_end; |
| 19 | extern void free_initrd_mem(unsigned long, unsigned long); |
| 20 | |
| 21 | #ifdef CONFIG_BLK_DEV_INITRD |
| 22 | extern void __init reserve_initrd_mem(void); |
| 23 | extern void wait_for_initramfs(void); |
| 24 | #else |
| 25 | static inline void __init reserve_initrd_mem(void) {} |
| 26 | static inline void wait_for_initramfs(void) {} |
| 27 | #endif |
| 28 | |
| 29 | extern phys_addr_t phys_initrd_start; |
| 30 | extern unsigned long phys_initrd_size; |
| 31 | |
| 32 | extern unsigned int real_root_dev; |
| 33 | |
| 34 | extern char __initramfs_start[]; |
| 35 | extern unsigned long __initramfs_size; |
| 36 | |
| 37 | void console_on_rootfs(void); |
| 38 | |
| 39 | #endif /* __LINUX_INITRD_H */ |