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 9 extern bool initmem_freed; 10 arch_is_kernel_initmem_freed(unsigned long addr)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 38 extern unsigned long __sdma, __edma; 39 extern unsigned long __stext_dma, __etext_dma; 40 41 #endif 42
