include/asm-sh/kexec.h

   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 */