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authorkogiidena <kogiidena@eggplant.ddo.jp>2006-01-16 22:14:10 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-16 23:15:27 -0800
commit9d44190eae97ad4c9ce30f1084e1b0dabd646df5 (patch)
treed4801a1f62ea7493b34c306a4ee685e0c4fa5f53 /include/asm-sh
parent0d831770b154a057562236e8cf50905c8f1ae1b0 (diff)
[PATCH] sh: kexec() support
This adds kexec() support for SH. Signed-off-by: kogiidena <kogiidena@eggplant.ddo.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org> Cc: <fastboot@lists.osdl.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-sh')
-rw-r--r--include/asm-sh/kexec.h33
1 files changed, 33 insertions, 0 deletions
diff --git a/include/asm-sh/kexec.h b/include/asm-sh/kexec.h
new file mode 100644
index 00000000000..9dfe59f6fcb
--- /dev/null
+++ b/include/asm-sh/kexec.h
@@ -0,0 +1,33 @@
+#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 */