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 extern phys_addr_t phys_initrd_start; 22 extern unsigned long phys_initrd_size; 23 24 extern unsigned int real_root_dev; 25 26 extern char __initramfs_start[]; 27 extern unsigned long __initramfs_size; 28 29 void console_on_rootfs(void); 30 31 #endif /* __LINUX_INITRD_H */ 32