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