X-Git-Url: http://git.cascardo.info/?a=blobdiff_plain;f=arch%2Fsh%2Fkernel%2Fprocess_32.c;h=0747fabd73a7d117e8d3bbdd942ec20f2147b910;hb=01ab10393c510342ec4ce85df11ccfa3df06bbb2;hp=b965f0282c7dab650ec30fa1b02d532ed6674be5;hpb=a8022697811c3f2271df5ec14fa6f518b731b46a;p=cascardo%2Flinux.git

diff --git a/arch/sh/kernel/process_32.c b/arch/sh/kernel/process_32.c
index b965f0282c7d..0747fabd73a7 100644
--- a/arch/sh/kernel/process_32.c
+++ b/arch/sh/kernel/process_32.c
@@ -32,65 +32,8 @@
 #include <asm/fpu.h>
 #include <asm/syscalls.h>
 
-static int hlt_counter;
 int ubc_usercnt = 0;
 
-void (*pm_idle)(void);
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
-static int __init nohlt_setup(char *__unused)
-{
-	hlt_counter = 1;
-	return 1;
-}
-__setup("nohlt", nohlt_setup);
-
-static int __init hlt_setup(char *__unused)
-{
-	hlt_counter = 0;
-	return 1;
-}
-__setup("hlt", hlt_setup);
-
-static void default_idle(void)
-{
-	if (!hlt_counter) {
-		clear_thread_flag(TIF_POLLING_NRFLAG);
-		smp_mb__after_clear_bit();
-		set_bl_bit();
-		while (!need_resched())
-			cpu_sleep();
-		clear_bl_bit();
-		set_thread_flag(TIF_POLLING_NRFLAG);
-	} else
-		while (!need_resched())
-			cpu_relax();
-}
-
-void cpu_idle(void)
-{
-	set_thread_flag(TIF_POLLING_NRFLAG);
-
-	/* endless idle loop with no priority at all */
-	while (1) {
-		void (*idle)(void) = pm_idle;
-
-		if (!idle)
-			idle = default_idle;
-
-		tick_nohz_stop_sched_tick(1);
-		while (!need_resched())
-			idle();
-		tick_nohz_restart_sched_tick();
-
-		preempt_enable_no_resched();
-		schedule();
-		preempt_disable();
-		check_pgt_cache();
-	}
-}
-
 void machine_restart(char * __unused)
 {
 	/* SR.BL=1 and invoke address error to let CPU reset (manual reset) */
@@ -115,8 +58,8 @@ void machine_power_off(void)
 void show_regs(struct pt_regs * regs)
 {
 	printk("\n");
-	printk("Pid : %d, Comm: %20s\n", task_pid_nr(current), current->comm);
-	printk("CPU : %d    %s  (%s %.*s)\n",
+	printk("Pid : %d, Comm: \t\t%s\n", task_pid_nr(current), current->comm);
+	printk("CPU : %d        \t\t%s  (%s %.*s)\n\n",
 	       smp_processor_id(), print_tainted(), init_utsname()->release,
 	       (int)strcspn(init_utsname()->version, " "),
 	       init_utsname()->version);
@@ -148,26 +91,16 @@ void show_regs(struct pt_regs * regs)
 	       regs->mach, regs->macl, regs->gbr, regs->pr);
 
 	show_trace(NULL, (unsigned long *)regs->regs[15], regs);
+	show_code(regs);
 }
 
 /*
  * Create a kernel thread
  */
-
-/*
- * This is the mechanism for creating a new kernel thread.
- *
- */
-extern void kernel_thread_helper(void);
-__asm__(".align 5\n"
-	"kernel_thread_helper:\n\t"
-	"jsr	@r5\n\t"
-	" nop\n\t"
-	"mov.l	1f, r1\n\t"
-	"jsr	@r1\n\t"
-	" mov	r0, r4\n\t"
-	".align 2\n\t"
-	"1:.long do_exit");
+ATTRIB_NORET void kernel_thread_helper(void *arg, int (*fn)(void *))
+{
+	do_exit(fn(arg));
+}
 
 /* Don't use this in BL=1(cli).  Or else, CPU resets! */
 int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags)
@@ -243,14 +176,26 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
 {
 	struct thread_info *ti = task_thread_info(p);
 	struct pt_regs *childregs;
-#if defined(CONFIG_SH_FPU)
+#if defined(CONFIG_SH_FPU) || defined(CONFIG_SH_DSP)
 	struct task_struct *tsk = current;
+#endif
 
+#if defined(CONFIG_SH_FPU)
 	unlazy_fpu(tsk, regs);
 	p->thread.fpu = tsk->thread.fpu;
 	copy_to_stopped_child_used_math(p);
 #endif
 
+#if defined(CONFIG_SH_DSP)
+	if (is_dsp_enabled(tsk)) {
+		/* We can use the __save_dsp or just copy the struct:
+		 * __save_dsp(p);
+		 * p->thread.dsp_status.status |= SR_DSP
+		 */
+		p->thread.dsp_status = tsk->thread.dsp_status;
+	}
+#endif
+
 	childregs = task_pt_regs(p);
 	*childregs = *regs;