42 lines
1.3 KiB
C
42 lines
1.3 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _S390_SECTIONS_H
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#define _S390_SECTIONS_H
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#define arch_is_kernel_initmem_freed arch_is_kernel_initmem_freed
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#include <asm-generic/sections.h>
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extern bool initmem_freed;
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static inline int arch_is_kernel_initmem_freed(unsigned long addr)
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{
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if (!initmem_freed)
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return 0;
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return addr >= (unsigned long)__init_begin &&
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addr < (unsigned long)__init_end;
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}
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/*
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* .boot.data section contains variables "shared" between the decompressor and
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* the decompressed kernel. The decompressor will store values in them, and
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* copy over to the decompressed image before starting it.
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*
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* Each variable end up in its own intermediate section .boot.data.<var name>,
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* those sections are later sorted by alignment + name and merged together into
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* final .boot.data section, which should be identical in the decompressor and
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* the decompressed kernel (that is checked during the build).
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*/
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#define __bootdata(var) __section(.boot.data.var) var
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/*
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* .boot.preserved.data is similar to .boot.data, but it is not part of the
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* .init section and thus will be preserved for later use in the decompressed
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* kernel.
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*/
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#define __bootdata_preserved(var) __section(.boot.preserved.data.var) var
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extern unsigned long __sdma, __edma;
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extern unsigned long __stext_dma, __etext_dma;
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#endif
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