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50 lines
1.1 KiB
50 lines
1.1 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* |
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* OS info memory interface |
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* |
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* Copyright IBM Corp. 2012 |
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* Author(s): Michael Holzheu <[email protected]> |
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*/ |
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#ifndef _ASM_S390_OS_INFO_H |
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#define _ASM_S390_OS_INFO_H |
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#define OS_INFO_VERSION_MAJOR 1 |
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#define OS_INFO_VERSION_MINOR 1 |
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#define OS_INFO_MAGIC 0x4f53494e464f535aULL /* OSINFOSZ */ |
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#define OS_INFO_VMCOREINFO 0 |
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#define OS_INFO_REIPL_BLOCK 1 |
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struct os_info_entry { |
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u64 addr; |
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u64 size; |
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u32 csum; |
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} __packed; |
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struct os_info { |
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u64 magic; |
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u32 csum; |
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u16 version_major; |
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u16 version_minor; |
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u64 crashkernel_addr; |
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u64 crashkernel_size; |
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struct os_info_entry entry[2]; |
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u8 reserved[4024]; |
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} __packed; |
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void os_info_init(void); |
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void os_info_entry_add(int nr, void *ptr, u64 len); |
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void os_info_crashkernel_add(unsigned long base, unsigned long size); |
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u32 os_info_csum(struct os_info *os_info); |
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#ifdef CONFIG_CRASH_DUMP |
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void *os_info_old_entry(int nr, unsigned long *size); |
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int copy_oldmem_kernel(void *dst, void *src, size_t count); |
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#else |
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static inline void *os_info_old_entry(int nr, unsigned long *size) |
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{ |
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return NULL; |
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} |
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#endif |
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#endif /* _ASM_S390_OS_INFO_H */
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