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 reserve_initrd_mem(void)25static inline void __init reserve_initrd_mem(void) {} wait_for_initramfs(void)26static 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 char __initramfs_start[]; 33 extern unsigned long __initramfs_size; 34 35 void console_on_rootfs(void); 36 37 #endif /* __LINUX_INITRD_H */ 38