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sh: Tidy up the sh bios VBR handling.

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This moves the VBR handling out of the main trap handling code and in to
the sh-bios helper code. A couple of accessors are added in order to
permit other kernel code to get at the VBR value for state save/restore
paths.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt
2010-01-12 14:50:43 +09:00
parent ee2760ea58
commit 191d0d24b6
4 changed files with 55 additions and 33 deletions
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14
arch/sh/include/asm/sh_bios.h
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@@ -1,13 +1,13 @@
#ifndef __ASM_SH_BIOS_H
#define __ASM_SH_BIOS_H
#ifdef CONFIG_SH_STANDARD_BIOS
/*
* Copyright (C) 2000 Greg Banks, Mitch Davis
* C API to interface to the standard LinuxSH BIOS
* usually from within the early stages of kernel boot.
*/
extern void sh_bios_console_write(const char *buf, unsigned int len);
extern void sh_bios_char_out(char ch);
extern void sh_bios_gdb_detach(void);
@@ -15,4 +15,14 @@ extern void sh_bios_gdb_detach(void);
extern void sh_bios_get_node_addr(unsigned char *node_addr);
extern void sh_bios_shutdown(unsigned int how);
extern void sh_bios_vbr_init(void);
extern void sh_bios_vbr_reload(void);
#else
static inline void sh_bios_vbr_init(void) { }
static inline void sh_bios_vbr_reload(void) { }
#endif /* CONFIG_SH_STANDARD_BIOS */
#endif /* __ASM_SH_BIOS_H */