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cf13f0ea HC |
1 | /* |
2 | * include/asm-s390/kexec.h | |
3 | * | |
4 | * (C) Copyright IBM Corp. 2005 | |
5 | * | |
6 | * Author(s): Rolf Adelsberger <adelsberger@de.ibm.com> | |
7 | * | |
8 | */ | |
9 | ||
10 | #ifndef _S390_KEXEC_H | |
11 | #define _S390_KEXEC_H | |
12 | ||
13 | #include <asm/page.h> | |
14 | #include <asm/processor.h> | |
15 | /* | |
16 | * KEXEC_SOURCE_MEMORY_LIMIT maximum page get_free_page can return. | |
17 | * I.e. Maximum page that is mapped directly into kernel memory, | |
18 | * and kmap is not required. | |
19 | */ | |
20 | ||
21 | /* Maximum physical address we can use pages from */ | |
22 | #define KEXEC_SOURCE_MEMORY_LIMIT (-1UL) | |
23 | ||
24 | /* Maximum address we can reach in physical address mode */ | |
25 | #define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL) | |
26 | ||
27 | /* Maximum address we can use for the control pages */ | |
28 | /* Not more than 2GB */ | |
a1a392f0 | 29 | #define KEXEC_CONTROL_MEMORY_LIMIT (1UL<<31) |
cf13f0ea HC |
30 | |
31 | /* Allocate one page for the pdp and the second for the code */ | |
32 | #define KEXEC_CONTROL_CODE_SIZE 4096 | |
33 | ||
34 | /* The native architecture */ | |
35 | #define KEXEC_ARCH KEXEC_ARCH_S390 | |
36 | ||
bf208305 | 37 | /* Provide a dummy definition to avoid build failures. */ |
38 | static inline void crash_setup_regs(struct pt_regs *newregs, | |
39 | struct pt_regs *oldregs) { } | |
40 | ||
cf13f0ea | 41 | #endif /*_S390_KEXEC_H */ |