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authorRobin Holt <holt@sgi.com>2013-07-08 16:01:36 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-07-09 10:33:29 -0700
commitc97a7008517abb7c805fbdd49410032a652def26 (patch)
treec2e2db7add9ae7d78259c713c50c2da31611a951
parentedf2b1394611fef7806d4af72179dc3ac101f275 (diff)
downloadop-kernel-dev-c97a7008517abb7c805fbdd49410032a652def26.zip
op-kernel-dev-c97a7008517abb7c805fbdd49410032a652def26.tar.gz
reboot: unicore32: prepare reboot_mode for moving to generic kernel code
Prepare for the moving the parsing of reboot= to the generic kernel code by making reboot_mode into a more generic form. Signed-off-by: Robin Holt <holt@sgi.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Russ Anderson <rja@sgi.com> Cc: Robin Holt <holt@sgi.com> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: H. Peter Anvin <hpa@zytor.com> Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--arch/unicore32/kernel/process.c10
-rw-r--r--arch/unicore32/kernel/setup.h2
-rw-r--r--arch/unicore32/mm/mmu.c2
-rw-r--r--include/linux/reboot.h2
4 files changed, 9 insertions, 7 deletions
diff --git a/arch/unicore32/kernel/process.c b/arch/unicore32/kernel/process.c
index c944769..93dd035 100644
--- a/arch/unicore32/kernel/process.c
+++ b/arch/unicore32/kernel/process.c
@@ -51,14 +51,14 @@ void arch_cpu_idle(void)
local_irq_enable();
}
-static char reboot_mode = 'h';
+static enum reboot_mode reboot_mode = REBOOT_HARD;
int __init reboot_setup(char *str)
{
- reboot_mode = str[0];
+ if ('s' == str[0])
+ reboot_mode = REBOOT_SOFT;
return 1;
}
-
__setup("reboot=", reboot_setup);
void machine_halt(void)
@@ -88,7 +88,7 @@ void machine_restart(char *cmd)
* we may need it to insert some 1:1 mappings so that
* soft boot works.
*/
- setup_mm_for_reboot(reboot_mode);
+ setup_mm_for_reboot();
/* Clean and invalidate caches */
flush_cache_all();
@@ -102,7 +102,7 @@ void machine_restart(char *cmd)
/*
* Now handle reboot code.
*/
- if (reboot_mode == 's') {
+ if (reboot_mode == REBOOT_SOFT) {
/* Jump into ROM at address 0xffff0000 */
cpu_reset(VECTORS_BASE);
} else {
diff --git a/arch/unicore32/kernel/setup.h b/arch/unicore32/kernel/setup.h
index 30f749d..f5c51b8 100644
--- a/arch/unicore32/kernel/setup.h
+++ b/arch/unicore32/kernel/setup.h
@@ -22,7 +22,7 @@ extern void puv3_ps2_init(void);
extern void pci_puv3_preinit(void);
extern void __init puv3_init_gpio(void);
-extern void setup_mm_for_reboot(char mode);
+extern void setup_mm_for_reboot(void);
extern char __stubs_start[], __stubs_end[];
extern char __vectors_start[], __vectors_end[];
diff --git a/arch/unicore32/mm/mmu.c b/arch/unicore32/mm/mmu.c
index 43c20b4..4f5a532 100644
--- a/arch/unicore32/mm/mmu.c
+++ b/arch/unicore32/mm/mmu.c
@@ -445,7 +445,7 @@ void __init paging_init(void)
* the user-mode pages. This will then ensure that we have predictable
* results when turning the mmu off
*/
-void setup_mm_for_reboot(char mode)
+void setup_mm_for_reboot(void)
{
unsigned long base_pmdval;
pgd_t *pgd;
diff --git a/include/linux/reboot.h b/include/linux/reboot.h
index 37d56c3..ca29a6f 100644
--- a/include/linux/reboot.h
+++ b/include/linux/reboot.h
@@ -13,6 +13,8 @@
enum reboot_mode {
REBOOT_COLD = 0,
REBOOT_WARM,
+ REBOOT_HARD,
+ REBOOT_SOFT,
};
extern int register_reboot_notifier(struct notifier_block *);
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