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authorHeiko Carstens <heiko.carstens@de.ibm.com>2005-06-25 17:58:11 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-06-25 19:24:51 -0400
commitcf13f0eaffa31bf6a145c53c589654b11c72ddc7 (patch)
tree55c11d753422398b060ea9571698285b5fdc603b /include/asm-s390/kexec.h
parentfce0d5740322b98b863f9e609f5a9bd4c06703af (diff)
[PATCH] kexec: s390 support
Add kexec support for s390 architecture. From: Milton Miller <miltonm@bga.com> - Fix passing of first argument to relocate_kernel assembly. - Fix Kconfig description. - Remove wrong comment and comments that describe obvious things. - Allow only KEXEC_TYPE_DEFAULT as image type -> dump not supported. Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-s390/kexec.h')
-rw-r--r--include/asm-s390/kexec.h42
1 files changed, 42 insertions, 0 deletions
diff --git a/include/asm-s390/kexec.h b/include/asm-s390/kexec.h
new file mode 100644
index 000000000000..54cf7d9f251c
--- /dev/null
+++ b/include/asm-s390/kexec.h
@@ -0,0 +1,42 @@
1/*
2 * include/asm-s390/kexec.h
3 *
4 * (C) Copyright IBM Corp. 2005
5 *
6 * Author(s): Rolf Adelsberger <adelsberger@de.ibm.com>
7 *
8 */
9
10#ifndef _S390_KEXEC_H
11#define _S390_KEXEC_H
12
13#include <asm/page.h>
14#include <asm/processor.h>
15/*
16 * KEXEC_SOURCE_MEMORY_LIMIT maximum page get_free_page can return.
17 * I.e. Maximum page that is mapped directly into kernel memory,
18 * and kmap is not required.
19 */
20
21/* Maximum physical address we can use pages from */
22#define KEXEC_SOURCE_MEMORY_LIMIT (-1UL)
23
24/* Maximum address we can reach in physical address mode */
25#define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL)
26
27/* Maximum address we can use for the control pages */
28/* Not more than 2GB */
29#define KEXEC_CONTROL_MEMORY_LIMIT (1<<31)
30
31/* Allocate one page for the pdp and the second for the code */
32#define KEXEC_CONTROL_CODE_SIZE 4096
33
34/* The native architecture */
35#define KEXEC_ARCH KEXEC_ARCH_S390
36
37#define MAX_NOTE_BYTES 1024
38typedef u32 note_buf_t[MAX_NOTE_BYTES/4];
39
40extern note_buf_t crash_notes[];
41
42#endif /*_S390_KEXEC_H */