1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef _S390_SECTIONS_H 3#define _S390_SECTIONS_H 4 5#define arch_is_kernel_initmem_freed arch_is_kernel_initmem_freed 6 7#include <asm-generic/sections.h> 8 9extern bool initmem_freed; 10 11static inline int arch_is_kernel_initmem_freed(unsigned long addr) 12{ 13 if (!initmem_freed) 14 return 0; 15 return addr >= (unsigned long)__init_begin && 16 addr < (unsigned long)__init_end; 17} 18 19/* 20 * .boot.data section contains variables "shared" between the decompressor and 21 * the decompressed kernel. The decompressor will store values in them, and 22 * copy over to the decompressed image before starting it. 23 * 24 * Each variable end up in its own intermediate section .boot.data.<var name>, 25 * those sections are later sorted by alignment + name and merged together into 26 * final .boot.data section, which should be identical in the decompressor and 27 * the decompressed kernel (that is checked during the build). 28 */ 29#define __bootdata(var) __section(".boot.data." #var) var 30 31/* 32 * .boot.preserved.data is similar to .boot.data, but it is not part of the 33 * .init section and thus will be preserved for later use in the decompressed 34 * kernel. 35 */ 36#define __bootdata_preserved(var) __section(".boot.preserved.data." #var) var 37 38extern unsigned long __samode31, __eamode31; 39extern unsigned long __stext_amode31, __etext_amode31; 40 41#endif 42