diff options
Diffstat (limited to 'arch/sh/kernel/process_32.c')
| -rw-r--r-- | arch/sh/kernel/process_32.c | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/arch/sh/kernel/process_32.c b/arch/sh/kernel/process_32.c index 92d7740faab..0673c4746be 100644 --- a/arch/sh/kernel/process_32.c +++ b/arch/sh/kernel/process_32.c @@ -23,6 +23,7 @@ #include <linux/tick.h> #include <linux/reboot.h> #include <linux/fs.h> +#include <linux/ftrace.h> #include <linux/preempt.h> #include <asm/uaccess.h> #include <asm/mmu_context.h> @@ -31,15 +32,35 @@ #include <asm/ubc.h> #include <asm/fpu.h> #include <asm/syscalls.h> +#include <asm/watchdog.h> int ubc_usercnt = 0; +#ifdef CONFIG_32BIT +static void watchdog_trigger_immediate(void) +{ + sh_wdt_write_cnt(0xFF); + sh_wdt_write_csr(0xC2); +} + +void machine_restart(char * __unused) +{ + local_irq_disable(); + + /* Use watchdog timer to trigger reset */ + watchdog_trigger_immediate(); + + while (1) + cpu_sleep(); +} +#else void machine_restart(char * __unused) { /* SR.BL=1 and invoke address error to let CPU reset (manual reset) */ asm volatile("ldc %0, sr\n\t" "mov.l @%1, %0" : : "r" (0x10000000), "r" (0x80000001)); } +#endif void machine_halt(void) { @@ -264,8 +285,8 @@ static void ubc_set_tracing(int asid, unsigned long pc) * switch_to(x,y) should switch tasks from x to y. * */ -struct task_struct *__switch_to(struct task_struct *prev, - struct task_struct *next) +__notrace_funcgraph struct task_struct * +__switch_to(struct task_struct *prev, struct task_struct *next) { #if defined(CONFIG_SH_FPU) unlazy_fpu(prev, task_pt_regs(prev)); |