|  | /* SPDX-License-Identifier: GPL-2.0 */ | 
|  |  | 
|  | #ifndef __LINUX_INITRD_H | 
|  | #define __LINUX_INITRD_H | 
|  |  | 
|  | #define INITRD_MINOR 250 /* shouldn't collide with /dev/ram* too soon ... */ | 
|  |  | 
|  | /* starting block # of image */ | 
|  | extern int rd_image_start; | 
|  |  | 
|  | /* size of a single RAM disk */ | 
|  | extern unsigned long rd_size; | 
|  |  | 
|  | /* 1 if it is not an error if initrd_start < memory_start */ | 
|  | extern int initrd_below_start_ok; | 
|  |  | 
|  | /* free_initrd_mem always gets called with the next two as arguments.. */ | 
|  | extern unsigned long initrd_start, initrd_end; | 
|  | extern void free_initrd_mem(unsigned long, unsigned long); | 
|  |  | 
|  | #ifdef CONFIG_BLK_DEV_INITRD | 
|  | extern void __init reserve_initrd_mem(void); | 
|  | extern void wait_for_initramfs(void); | 
|  | #else | 
|  | static inline void __init reserve_initrd_mem(void) {} | 
|  | static inline void wait_for_initramfs(void) {} | 
|  | #endif | 
|  |  | 
|  | extern phys_addr_t phys_initrd_start; | 
|  | extern unsigned long phys_initrd_size; | 
|  |  | 
|  | extern char __initramfs_start[]; | 
|  | extern unsigned long __initramfs_size; | 
|  |  | 
|  | void console_on_rootfs(void); | 
|  |  | 
|  | #endif /* __LINUX_INITRD_H */ |