mirror_ubuntu-kernels/arch/s390/include/asm/os_info.h
Alexander Gordeev fba07cd4dd s390/mm: uninline copy_oldmem_kernel() function
Uninline copy_oldmem_kernel() function and make it consistent
with a very similar memcpy_real() implementation, by moving
to code to crash_dump.c, where it actually belongs.

Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2022-09-14 16:46:01 +02:00

52 lines
1.1 KiB
C

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