[mirror_ubuntu-zesty-kernel.git] / include / asm-sh / kexec.h

#ifndef _SH_KEXEC_H
#define _SH_KEXEC_H

/*
 * KEXEC_SOURCE_MEMORY_LIMIT maximum page get_free_page can return.
 * I.e. Maximum page that is mapped directly into kernel memory,
 * and kmap is not required.
 *
 * Someone correct me if FIXADDR_START - PAGEOFFSET is not the correct
 * calculation for the amount of memory directly mappable into the
 * kernel memory space.
 */

/* Maximum physical address we can use pages from */
#define KEXEC_SOURCE_MEMORY_LIMIT (-1UL)
/* Maximum address we can reach in physical address mode */
#define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL)
/* Maximum address we can use for the control code buffer */
#define KEXEC_CONTROL_MEMORY_LIMIT TASK_SIZE

#define KEXEC_CONTROL_CODE_SIZE	4096

/* The native architecture */
#define KEXEC_ARCH KEXEC_ARCH_SH

#ifndef __ASSEMBLY__

extern void machine_shutdown(void);
extern void *crash_notes;

#endif /* __ASSEMBLY__ */

#endif /* _SH_KEXEC_H */
Commit	Line	Data
9d44190e	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 */