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1 | #ifndef _SH_KEXEC_H |
2 | #define _SH_KEXEC_H |
3 | |
4 | /* |
5 | * KEXEC_SOURCE_MEMORY_LIMIT maximum page get_free_page can return. |
6 | * I.e. Maximum page that is mapped directly into kernel memory, |
7 | * and kmap is not required. |
8 | * |
9 | * Someone correct me if FIXADDR_START - PAGEOFFSET is not the correct |
10 | * calculation for the amount of memory directly mappable into the |
11 | * kernel memory space. |
12 | */ |
13 | |
14 | /* Maximum physical address we can use pages from */ |
15 | #define KEXEC_SOURCE_MEMORY_LIMIT (-1UL) |
16 | /* Maximum address we can reach in physical address mode */ |
17 | #define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL) |
18 | /* Maximum address we can use for the control code buffer */ |
19 | #define KEXEC_CONTROL_MEMORY_LIMIT TASK_SIZE |
20 | |
21 | #define KEXEC_CONTROL_CODE_SIZE 4096 |
22 | |
23 | /* The native architecture */ |
24 | #define KEXEC_ARCH KEXEC_ARCH_SH |
25 | |
26 | #ifndef __ASSEMBLY__ |
27 | |
28 | extern void machine_shutdown(void); |
29 | extern void *crash_notes; |
30 | |
31 | #endif /* __ASSEMBLY__ */ |
32 | |
33 | #endif /* _SH_KEXEC_H */ |