/* *  linux/arch/m32r/kernel/process.c * *  Copyright (c) 2001, 2002  Hiroyuki Kondo, Hirokazu Takata, *                            Hitoshi Yamamoto *  Taken from sh version. *    Copyright (C) 1995  Linus Torvalds *    SuperH version:  Copyright (C) 1999, 2000  Niibe Yutaka & Kaz Kojima */ #undef DEBUG_PROCESS#ifdef DEBUG_PROCESS#define DPRINTK(fmt, args...)  printk("%s:%d:%s: " fmt, __FILE__, __LINE__, \  __func__, ##args)#else#define DPRINTK(fmt, args...)#endif /* * This file handles the architecture-dependent parts of process handling.. */ #include <linux/fs.h>#include <linux/slab.h>#include <linux/module.h>#include <linux/ptrace.h>#include <linux/unistd.h>#include <linux/hardirq.h>#include <linux/rcupdate.h> #include <asm/io.h>#include <asm/uaccess.h>#include <asm/mmu_context.h>#include <asm/elf.h>#include <asm/m32r.h> #include <linux/err.h> /* * Return saved PC of a blocked thread. */unsigned long thread_saved_pc(struct task_struct *tsk){	return tsk->thread.lr;} void (*pm_power_off)(void) = NULL;EXPORT_SYMBOL(pm_power_off); void machine_restart(char *__unused){#if defined(CONFIG_PLAT_MAPPI3)	outw(1, (unsigned long)PLD_REBOOT);#endif 	printk("Please push reset button!\n");	while (1)		cpu_relax();} void machine_halt(void){	printk("Please push reset button!\n");	while (1)		cpu_relax();} void machine_power_off(void){	/* M32R_FIXME */} void show_regs(struct pt_regs * regs){	printk("\n");	show_regs_print_info(KERN_DEFAULT); 	printk("BPC[%08lx]:PSW[%08lx]:LR [%08lx]:FP [%08lx]\n", \	  regs->bpc, regs->psw, regs->lr, regs->fp);	printk("BBPC[%08lx]:BBPSW[%08lx]:SPU[%08lx]:SPI[%08lx]\n", \	  regs->bbpc, regs->bbpsw, regs->spu, regs->spi);	printk("R0 [%08lx]:R1 [%08lx]:R2 [%08lx]:R3 [%08lx]\n", \	  regs->r0, regs->r1, regs->r2, regs->r3);	printk("R4 [%08lx]:R5 [%08lx]:R6 [%08lx]:R7 [%08lx]\n", \	  regs->r4, regs->r5, regs->r6, regs->r7);	printk("R8 [%08lx]:R9 [%08lx]:R10[%08lx]:R11[%08lx]\n", \	  regs->r8, regs->r9, regs->r10, regs->r11);	printk("R12[%08lx]\n", \	  regs->r12); #if defined(CONFIG_ISA_M32R2) && defined(CONFIG_ISA_DSP_LEVEL2)	printk("ACC0H[%08lx]:ACC0L[%08lx]\n", \	  regs->acc0h, regs->acc0l);	printk("ACC1H[%08lx]:ACC1L[%08lx]\n", \	  regs->acc1h, regs->acc1l);#elif defined(CONFIG_ISA_M32R2) || defined(CONFIG_ISA_M32R)	printk("ACCH[%08lx]:ACCL[%08lx]\n", \	  regs->acc0h, regs->acc0l);#else#error unknown isa configuration#endif} /* * Free current thread data structures etc.. */void exit_thread(void){	/* Nothing to do. */	DPRINTK("pid = %d\n", current->pid);} void flush_thread(void){	DPRINTK("pid = %d\n", current->pid);	memset(&current->thread.debug_trap, 0, sizeof(struct debug_trap));} void release_thread(struct task_struct *dead_task){	/* do nothing */	DPRINTK("pid = %d\n", dead_task->pid);} /* Fill in the fpu structure for a core dump.. */int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu){	return 0; /* Task didn't use the fpu at all. */} int copy_thread(unsigned long clone_flags, unsigned long spu,	unsigned long arg, struct task_struct *tsk){	struct pt_regs *childregs = task_pt_regs(tsk);	extern void ret_from_fork(void);	extern void ret_from_kernel_thread(void); 	if (unlikely(tsk->flags & PF_KTHREAD)) {		memset(childregs, 0, sizeof(struct pt_regs));		childregs->psw = M32R_PSW_BIE;		childregs->r1 = spu;	/* fn */		childregs->r0 = arg;		tsk->thread.lr = (unsigned long)ret_from_kernel_thread;	} else {		/* Copy registers */		*childregs = *current_pt_regs();		if (spu)			childregs->spu = spu;		childregs->r0 = 0;	/* Child gets zero as return value */		tsk->thread.lr = (unsigned long)ret_from_fork;	}	tsk->thread.sp = (unsigned long)childregs; 	return 0;} /* * These bracket the sleeping functions.. */#define first_sched	((unsigned long) scheduling_functions_start_here)#define last_sched	((unsigned long) scheduling_functions_end_here) unsigned long get_wchan(struct task_struct *p){	/* M32R_FIXME */	return (0);}