~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/arch/m32r/kernel/process.c

Version: ~ [ linux-5.13-rc1 ] ~ [ linux-5.12.2 ] ~ [ linux-5.11.19 ] ~ [ linux-5.10.35 ] ~ [ linux-5.9.16 ] ~ [ linux-5.8.18 ] ~ [ linux-5.7.19 ] ~ [ linux-5.6.19 ] ~ [ linux-5.5.19 ] ~ [ linux-5.4.117 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.190 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.232 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.268 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.268 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.18.140 ] ~ [ linux-3.16.85 ] ~ [ linux-3.14.79 ] ~ [ linux-3.12.74 ] ~ [ linux-3.10.108 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 /*
  2  *  linux/arch/m32r/kernel/process.c
  3  *
  4  *  Copyright (c) 2001, 2002  Hiroyuki Kondo, Hirokazu Takata,
  5  *                            Hitoshi Yamamoto
  6  *  Taken from sh version.
  7  *    Copyright (C) 1995  Linus Torvalds
  8  *    SuperH version:  Copyright (C) 1999, 2000  Niibe Yutaka & Kaz Kojima
  9  */
 10 
 11 #undef DEBUG_PROCESS
 12 #ifdef DEBUG_PROCESS
 13 #define DPRINTK(fmt, args...)  printk("%s:%d:%s: " fmt, __FILE__, __LINE__, \
 14   __func__, ##args)
 15 #else
 16 #define DPRINTK(fmt, args...)
 17 #endif
 18 
 19 /*
 20  * This file handles the architecture-dependent parts of process handling..
 21  */
 22 
 23 #include <linux/fs.h>
 24 #include <linux/slab.h>
 25 #include <linux/module.h>
 26 #include <linux/ptrace.h>
 27 #include <linux/unistd.h>
 28 #include <linux/hardirq.h>
 29 #include <linux/rcupdate.h>
 30 
 31 #include <asm/io.h>
 32 #include <asm/uaccess.h>
 33 #include <asm/mmu_context.h>
 34 #include <asm/elf.h>
 35 #include <asm/m32r.h>
 36 
 37 #include <linux/err.h>
 38 
 39 /*
 40  * Return saved PC of a blocked thread.
 41  */
 42 unsigned long thread_saved_pc(struct task_struct *tsk)
 43 {
 44         return tsk->thread.lr;
 45 }
 46 
 47 void (*pm_power_off)(void) = NULL;
 48 EXPORT_SYMBOL(pm_power_off);
 49 
 50 void machine_restart(char *__unused)
 51 {
 52 #if defined(CONFIG_PLAT_MAPPI3)
 53         outw(1, (unsigned long)PLD_REBOOT);
 54 #endif
 55 
 56         printk("Please push reset button!\n");
 57         while (1)
 58                 cpu_relax();
 59 }
 60 
 61 void machine_halt(void)
 62 {
 63         printk("Please push reset button!\n");
 64         while (1)
 65                 cpu_relax();
 66 }
 67 
 68 void machine_power_off(void)
 69 {
 70         /* M32R_FIXME */
 71 }
 72 
 73 void show_regs(struct pt_regs * regs)
 74 {
 75         printk("\n");
 76         show_regs_print_info(KERN_DEFAULT);
 77 
 78         printk("BPC[%08lx]:PSW[%08lx]:LR [%08lx]:FP [%08lx]\n", \
 79           regs->bpc, regs->psw, regs->lr, regs->fp);
 80         printk("BBPC[%08lx]:BBPSW[%08lx]:SPU[%08lx]:SPI[%08lx]\n", \
 81           regs->bbpc, regs->bbpsw, regs->spu, regs->spi);
 82         printk("R0 [%08lx]:R1 [%08lx]:R2 [%08lx]:R3 [%08lx]\n", \
 83           regs->r0, regs->r1, regs->r2, regs->r3);
 84         printk("R4 [%08lx]:R5 [%08lx]:R6 [%08lx]:R7 [%08lx]\n", \
 85           regs->r4, regs->r5, regs->r6, regs->r7);
 86         printk("R8 [%08lx]:R9 [%08lx]:R10[%08lx]:R11[%08lx]\n", \
 87           regs->r8, regs->r9, regs->r10, regs->r11);
 88         printk("R12[%08lx]\n", \
 89           regs->r12);
 90 
 91 #if defined(CONFIG_ISA_M32R2) && defined(CONFIG_ISA_DSP_LEVEL2)
 92         printk("ACC0H[%08lx]:ACC0L[%08lx]\n", \
 93           regs->acc0h, regs->acc0l);
 94         printk("ACC1H[%08lx]:ACC1L[%08lx]\n", \
 95           regs->acc1h, regs->acc1l);
 96 #elif defined(CONFIG_ISA_M32R2) || defined(CONFIG_ISA_M32R)
 97         printk("ACCH[%08lx]:ACCL[%08lx]\n", \
 98           regs->acc0h, regs->acc0l);
 99 #else
100 #error unknown isa configuration
101 #endif
102 }
103 
104 void flush_thread(void)
105 {
106         DPRINTK("pid = %d\n", current->pid);
107         memset(&current->thread.debug_trap, 0, sizeof(struct debug_trap));
108 }
109 
110 void release_thread(struct task_struct *dead_task)
111 {
112         /* do nothing */
113         DPRINTK("pid = %d\n", dead_task->pid);
114 }
115 
116 /* Fill in the fpu structure for a core dump.. */
117 int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu)
118 {
119         return 0; /* Task didn't use the fpu at all. */
120 }
121 
122 int copy_thread(unsigned long clone_flags, unsigned long spu,
123         unsigned long arg, struct task_struct *tsk)
124 {
125         struct pt_regs *childregs = task_pt_regs(tsk);
126         extern void ret_from_fork(void);
127         extern void ret_from_kernel_thread(void);
128 
129         if (unlikely(tsk->flags & PF_KTHREAD)) {
130                 memset(childregs, 0, sizeof(struct pt_regs));
131                 childregs->psw = M32R_PSW_BIE;
132                 childregs->r1 = spu;    /* fn */
133                 childregs->r0 = arg;
134                 tsk->thread.lr = (unsigned long)ret_from_kernel_thread;
135         } else {
136                 /* Copy registers */
137                 *childregs = *current_pt_regs();
138                 if (spu)
139                         childregs->spu = spu;
140                 childregs->r0 = 0;      /* Child gets zero as return value */
141                 tsk->thread.lr = (unsigned long)ret_from_fork;
142         }
143         tsk->thread.sp = (unsigned long)childregs;
144 
145         return 0;
146 }
147 
148 /*
149  * These bracket the sleeping functions..
150  */
151 #define first_sched     ((unsigned long) scheduling_functions_start_here)
152 #define last_sched      ((unsigned long) scheduling_functions_end_here)
153 
154 unsigned long get_wchan(struct task_struct *p)
155 {
156         /* M32R_FIXME */
157         return (0);
158 }
159 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp