add boot partition size

hc

2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d

 kernel/arch/s390/include/asm/sections.h
..
..
@@ -2,6 +2,40 @@
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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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+
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 #include <asm-generic/sections.h>
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+extern bool initmem_freed;
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+
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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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+/*
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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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+/*
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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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+
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+extern unsigned long __sdma, __edma;
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+extern unsigned long __stext_dma, __etext_dma;
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+
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 #endif