| Eric W. Biederman | 70765aa | 2005-06-25 14:58:07 -0700 | [diff] [blame] | 1 | #ifndef _PPC_KEXEC_H |
| 2 | #define _PPC_KEXEC_H |
| 3 | |
| 4 | #ifdef CONFIG_KEXEC |
| 5 | |
| 6 | /* |
| 7 | * KEXEC_SOURCE_MEMORY_LIMIT maximum page get_free_page can return. |
| 8 | * I.e. Maximum page that is mapped directly into kernel memory, |
| 9 | * and kmap is not required. |
| 10 | * |
| 11 | * Someone correct me if FIXADDR_START - PAGEOFFSET is not the correct |
| 12 | * calculation for the amount of memory directly mappable into the |
| 13 | * kernel memory space. |
| 14 | */ |
| 15 | |
| 16 | /* Maximum physical address we can use pages from */ |
| 17 | #define KEXEC_SOURCE_MEMORY_LIMIT (-1UL) |
| 18 | /* Maximum address we can reach in physical address mode */ |
| 19 | #define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL) |
| 20 | /* Maximum address we can use for the control code buffer */ |
| 21 | #define KEXEC_CONTROL_MEMORY_LIMIT TASK_SIZE |
| 22 | |
| 23 | #define KEXEC_CONTROL_CODE_SIZE 4096 |
| 24 | |
| 25 | /* The native architecture */ |
| 26 | #define KEXEC_ARCH KEXEC_ARCH_PPC |
| 27 | |
| 28 | #ifndef __ASSEMBLY__ |
| 29 | |
| 30 | struct kimage; |
| 31 | |
| 32 | extern void machine_kexec_simple(struct kimage *image); |
| 33 | |
| 34 | #endif /* __ASSEMBLY__ */ |
| 35 | |
| 36 | #endif /* CONFIG_KEXEC */ |
| 37 | |
| 38 | #endif /* _PPC_KEXEC_H */ |