| Heiko Carstens | cf13f0e | 2005-06-25 14:58:11 -0700 | [diff] [blame] | 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 */ |
| 29 | #define KEXEC_CONTROL_MEMORY_LIMIT (1<<31) |
| 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 | |
| 37 | #define MAX_NOTE_BYTES 1024 |
| 38 | typedef u32 note_buf_t[MAX_NOTE_BYTES/4]; |
| 39 | |
| 40 | extern note_buf_t crash_notes[]; |
| 41 | |
| 42 | #endif /*_S390_KEXEC_H */ |