1 files changed, 102 insertions, 0 deletions
diff --git a/arch/s390/boot/boot.h b/arch/s390/boot/boot.h
new file mode 100644
index 000000000..222c6886a
--- /dev/null
+++ b/arch/s390/boot/boot.h
@@ -0,0 +1,102 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef BOOT_BOOT_H
+#define BOOT_BOOT_H
+
+#include <linux/types.h>
+
+#define IPL_START	0x200
+
+#ifndef __ASSEMBLY__
+
+#include <asm/physmem_info.h>
+
+struct machine_info {
+	unsigned char has_edat1 : 1;
+	unsigned char has_edat2 : 1;
+	unsigned char has_nx : 1;
+};
+
+struct vmlinux_info {
+	unsigned long default_lma;
+	unsigned long entry;
+	unsigned long image_size;	/* does not include .bss */
+	unsigned long bss_size;		/* uncompressed image .bss size */
+	unsigned long bootdata_off;
+	unsigned long bootdata_size;
+	unsigned long bootdata_preserved_off;
+	unsigned long bootdata_preserved_size;
+	unsigned long dynsym_start;
+	unsigned long rela_dyn_start;
+	unsigned long rela_dyn_end;
+	unsigned long amode31_size;
+	unsigned long init_mm_off;
+	unsigned long swapper_pg_dir_off;
+	unsigned long invalid_pg_dir_off;
+#ifdef CONFIG_KASAN
+	unsigned long kasan_early_shadow_page_off;
+	unsigned long kasan_early_shadow_pte_off;
+	unsigned long kasan_early_shadow_pmd_off;
+	unsigned long kasan_early_shadow_pud_off;
+	unsigned long kasan_early_shadow_p4d_off;
+#endif
+};
+
+void startup_kernel(void);
+unsigned long detect_max_physmem_end(void);
+void detect_physmem_online_ranges(unsigned long max_physmem_end);
+void physmem_set_usable_limit(unsigned long limit);
+void physmem_reserve(enum reserved_range_type type, unsigned long addr, unsigned long size);
+void physmem_free(enum reserved_range_type type);
+/* for continuous/multiple allocations per type */
+unsigned long physmem_alloc_top_down(enum reserved_range_type type, unsigned long size,
+				     unsigned long align);
+/* for single allocations, 1 per type */
+unsigned long physmem_alloc_range(enum reserved_range_type type, unsigned long size,
+				  unsigned long align, unsigned long min, unsigned long max,
+				  bool die_on_oom);
+unsigned long get_physmem_alloc_pos(void);
+bool ipl_report_certs_intersects(unsigned long addr, unsigned long size,
+				 unsigned long *intersection_start);
+bool is_ipl_block_dump(void);
+void store_ipl_parmblock(void);
+int read_ipl_report(void);
+void save_ipl_cert_comp_list(void);
+void setup_boot_command_line(void);
+void parse_boot_command_line(void);
+void verify_facilities(void);
+void print_missing_facilities(void);
+void sclp_early_setup_buffer(void);
+void print_pgm_check_info(void);
+unsigned long randomize_within_range(unsigned long size, unsigned long align,
+				     unsigned long min, unsigned long max);
+void setup_vmem(unsigned long asce_limit);
+void __printf(1, 2) decompressor_printk(const char *fmt, ...);
+void print_stacktrace(unsigned long sp);
+void error(char *m);
+
+extern struct machine_info machine;
+
+/* Symbols defined by linker scripts */
+extern const char kernel_version[];
+extern unsigned long memory_limit;
+extern unsigned long vmalloc_size;
+extern int vmalloc_size_set;
+extern char __boot_data_start[], __boot_data_end[];
+extern char __boot_data_preserved_start[], __boot_data_preserved_end[];
+extern char _decompressor_syms_start[], _decompressor_syms_end[];
+extern char _stack_start[], _stack_end[];
+extern char _end[], _decompressor_end[];
+extern unsigned char _compressed_start[];
+extern unsigned char _compressed_end[];
+extern struct vmlinux_info _vmlinux_info;
+#define vmlinux _vmlinux_info
+
+#define __abs_lowcore_pa(x)	(((unsigned long)(x) - __abs_lowcore) % sizeof(struct lowcore))
+
+static inline bool intersects(unsigned long addr0, unsigned long size0,
+			      unsigned long addr1, unsigned long size1)
+{
+	return addr0 + size0 > addr1 && addr1 + size1 > addr0;
+}
+#endif /* __ASSEMBLY__ */
+#endif /* BOOT_BOOT_H */