This patch prepares 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 <h...@sgi.com>
To: Andrew Morton <a...@linux-foundation.org>
Cc: Guan Xuetao <g...@mprc.pku.edu.cn>
Cc: Russ Anderson <r...@sgi.com>
Cc: Robin Holt <h...@sgi.com>
Cc: Russell King <li...@arm.linux.org.uk>
Cc: H. Peter Anvin <h...@zytor.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Cc: the arch/x86 maintainers <x...@kernel.org>
Cc: Arm Mailing List <linux-arm-ker...@lists.infradead.org>
---
Changes since -v8
- Switched from using REBOOT_WARM/COLD to HARD/SOFT.
---
arch/unicore32/kernel/process.c | 10 +++++-----
arch/unicore32/kernel/setup.h | 2 +-
arch/unicore32/mm/mmu.c | 2 +-
include/linux/reboot.h | 2 ++
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 *);
--
1.8.2.1
--
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