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c72160fe05
Some architectures(eg, ARM and riscv) have similar logic to check and reserve the memory of initrd, let's provide a common function reserve_initrd_mem() to reduce duplicated code. Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
37 lines
959 B
C
37 lines
959 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __LINUX_INITRD_H
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#define __LINUX_INITRD_H
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#define INITRD_MINOR 250 /* shouldn't collide with /dev/ram* too soon ... */
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/* starting block # of image */
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extern int rd_image_start;
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/* size of a single RAM disk */
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extern unsigned long rd_size;
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/* 1 if it is not an error if initrd_start < memory_start */
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extern int initrd_below_start_ok;
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/* free_initrd_mem always gets called with the next two as arguments.. */
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extern unsigned long initrd_start, initrd_end;
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extern void free_initrd_mem(unsigned long, unsigned long);
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#ifdef CONFIG_BLK_DEV_INITRD
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extern void __init reserve_initrd_mem(void);
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#else
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static inline void __init reserve_initrd_mem(void) {}
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#endif
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extern phys_addr_t phys_initrd_start;
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extern unsigned long phys_initrd_size;
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extern unsigned int real_root_dev;
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extern char __initramfs_start[];
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extern unsigned long __initramfs_size;
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void console_on_rootfs(void);
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#endif /* __LINUX_INITRD_H */
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