projects / mirror_ubuntu-artful-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 | ||
| ed7b1889 | 13 | #ifdef __KERNEL__ |
| cf13f0ea | 14 | #include <asm/page.h> |
| ed7b1889 | 15 | #endif |
| cf13f0ea HC |
16 | #include <asm/processor.h> |
| 17 | /* | |
| 18 | * KEXEC_SOURCE_MEMORY_LIMIT maximum page get_free_page can return. | |
| 19 | * I.e. Maximum page that is mapped directly into kernel memory, | |
| 20 | * and kmap is not required. | |
| 21 | */ | |
| 22 | ||
| 23 | /* Maximum physical address we can use pages from */ | |
| 24 | #define KEXEC_SOURCE_MEMORY_LIMIT (-1UL) | |
| 25 | ||
| 26 | /* Maximum address we can reach in physical address mode */ | |
| 27 | #define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL) | |
| 28 | ||
| 29 | /* Maximum address we can use for the control pages */ | |
| 30 | /* Not more than 2GB */ | |
| a1a392f0 | 31 | #define KEXEC_CONTROL_MEMORY_LIMIT (1UL<<31) |
| cf13f0ea | 32 | |
| 60a0c68d MH |
33 | /* Maximum address we can use for the crash control pages */ |
| 34 | #define KEXEC_CRASH_CONTROL_MEMORY_LIMIT (-1UL) | |
| 35 | ||
| cf13f0ea | 36 | /* Allocate one page for the pdp and the second for the code */ |
| 163f6876 | 37 | #define KEXEC_CONTROL_PAGE_SIZE 4096 |
| cf13f0ea | 38 | |
| dab7a7b1 MH |
39 | /* Alignment of crashkernel memory */ |
| 40 | #define KEXEC_CRASH_MEM_ALIGN HPAGE_SIZE | |
| 41 | ||
| cf13f0ea HC |
42 | /* The native architecture */ |
| 43 | #define KEXEC_ARCH KEXEC_ARCH_S390 | |
| 44 | ||
| bf208305 | 45 | /* Provide a dummy definition to avoid build failures. */ |
| 46 | static inline void crash_setup_regs(struct pt_regs *newregs, | |
| 47 | struct pt_regs *oldregs) { } | |
| 48 | ||
| cf13f0ea | 49 | #endif /*_S390_KEXEC_H */ |