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.
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.
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
21 #define KEXEC_CONTROL_CODE_SIZE 4096
23 /* The native architecture */
24 #define KEXEC_ARCH KEXEC_ARCH_SH
28 extern void machine_shutdown(void);
29 extern void *crash_notes;
31 #endif /* __ASSEMBLY__ */
33 #endif /* _SH_KEXEC_H */