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#ifndef _ASM_M32R_PROCESSOR_H
#define _ASM_M32R_PROCESSOR_H

/*
 * include/asm-m32r/processor.h
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 1994  Linus Torvalds
 * Copyright (C) 2001  Hiroyuki Kondo, Hirokazu Takata, and Hitoshi Yamamoto
 * Copyright (C) 2004  Hirokazu Takata <takata at linux-m32r.org>
 */

#include <linux/kernel.h>
#include <asm/cache.h>
#include <asm/ptrace.h>  /* pt_regs */

/*
 * Default implementation of macro that returns current
 * instruction pointer ("program counter").
 */
#define current_text_addr() ({ __label__ _l; _l: &&_l; })

/*
 *  CPU type and hardware bug flags. Kept separately for each CPU.
 *  Members of this structure are referenced in head.S, so think twice
 *  before touching them. [mj]
 */

struct cpuinfo_m32r {
	unsigned long pgtable_cache_sz;
	unsigned long cpu_clock;
	unsigned long bus_clock;
	unsigned long timer_divide;
	unsigned long loops_per_jiffy;
};

/*
 * capabilities of CPUs
 */

extern struct cpuinfo_m32r boot_cpu_data;

#ifdef CONFIG_SMP
extern struct cpuinfo_m32r cpu_data[];
#define current_cpu_data cpu_data[smp_processor_id()]
#else
#define cpu_data (&boot_cpu_data)
#define current_cpu_data boot_cpu_data
#endif

/*
 * User space process size: 2GB (default).
 */
#ifdef CONFIG_MMU
#define TASK_SIZE  (0x80000000UL)
#else
#define TASK_SIZE  (0x00400000UL)
#endif

#ifdef __KERNEL__
#define STACK_TOP	TASK_SIZE
#define STACK_TOP_MAX	STACK_TOP
#endif

/* This decides where the kernel will search for a free chunk of vm
 * space during mmap's.
 */
#define TASK_UNMAPPED_BASE	PAGE_ALIGN(TASK_SIZE / 3)

typedef struct {
	unsigned long seg;
} mm_segment_t;

#define MAX_TRAPS 10

struct debug_trap {
	int nr_trap;
	unsigned long	addr[MAX_TRAPS];
	unsigned long	insn[MAX_TRAPS];
};

struct thread_struct {
	unsigned long address;
	unsigned long trap_no;		/* Trap number  */
	unsigned long error_code;	/* Error code of trap */
	unsigned long lr;		/* saved pc */
	unsigned long sp;		/* user stack pointer */
	struct debug_trap debug_trap;
};

#define INIT_SP	(sizeof(init_stack) + (unsigned long) &init_stack)

#define INIT_THREAD	{	\
	.sp = INIT_SP,		\
}

/*
 * Do necessary setup to start up a newly executed thread.
 */

/* User process Backup PSW */
#define USERPS_BPSW (M32R_PSW_BSM|M32R_PSW_BIE|M32R_PSW_BPM)

#define start_thread(regs, new_pc, new_spu) 				\
	do {								\
		regs->psw = (regs->psw | USERPS_BPSW) & 0x0000FFFFUL;	\
		regs->bpc = new_pc;					\
		regs->spu = new_spu;					\
	} while (0)

/* Forward declaration, a strange C thing */
struct task_struct;
struct mm_struct;

/* Free all resources held by a thread. */
extern void release_thread(struct task_struct *);

unsigned long get_wchan(struct task_struct *p);
#define KSTK_EIP(tsk)  ((tsk)->thread.lr)
#define KSTK_ESP(tsk)  ((tsk)->thread.sp)

#define cpu_relax()	barrier()

#endif /* _ASM_M32R_PROCESSOR_H */

Filemanager

Name Type Size Permission Actions
m32104ut Folder 0755
m32700ut Folder 0755
mappi2 Folder 0755
mappi3 Folder 0755
opsput Folder 0755
Kbuild File 318 B 0644
addrspace.h File 1.67 KB 0644
asm-offsets.h File 35 B 0644
assembler.h File 4.2 KB 0644
atomic.h File 6.29 KB 0644
barrier.h File 506 B 0644
bitops.h File 6.23 KB 0644
bug.h File 115 B 0644
bugs.h File 410 B 0644
cache.h File 222 B 0644
cachectl.h File 739 B 0644
cacheflush.h File 3.2 KB 0644
checksum.h File 4.83 KB 0644
cmpxchg.h File 4.86 KB 0644
dcache_clear.h File 1.01 KB 0644
delay.h File 31 B 0644
device.h File 148 B 0644
div64.h File 31 B 0644
dma-mapping.h File 570 B 0644
dma.h File 281 B 0644
elf.h File 3.64 KB 0644
emergency-restart.h File 188 B 0644
fb.h File 414 B 0644
flat.h File 4.2 KB 0644
ftrace.h File 12 B 0644
futex.h File 82 B 0644
hardirq.h File 214 B 0644
hw_irq.h File 87 B 0644
io.h File 6.44 KB 0644
irq.h File 2.94 KB 0644
irq_regs.h File 34 B 0644
irqflags.h File 2.24 KB 0644
kdebug.h File 32 B 0644
kmap_types.h File 251 B 0644
linkage.h File 177 B 0644
local.h File 7.8 KB 0644
local64.h File 33 B 0644
m32102.h File 14.71 KB 0644
m32r.h File 5.7 KB 0644
m32r_mp_fpga.h File 14.89 KB 0644
mc146818rtc.h File 671 B 0644
mmu.h File 403 B 0644
mmu_context.h File 4.23 KB 0644
mmzone.h File 1.29 KB 0644
page.h File 2.62 KB 0644
pci.h File 147 B 0644
percpu.h File 165 B 0644
pgalloc.h File 1.84 KB 0644
pgtable-2level.h File 2.31 KB 0644
pgtable.h File 9.7 KB 0644
processor.h File 2.93 KB 0644
ptrace.h File 1.3 KB 0644
rtc.h File 1.99 KB 0644
s1d13806.h File 9.84 KB 0644
segment.h File 228 B 0644
serial.h File 187 B 0644
setup.h File 1022 B 0644
shmparam.h File 197 B 0644
signal.h File 561 B 0644
smp.h File 3.5 KB 0644
spinlock.h File 7.15 KB 0644
spinlock_types.h File 520 B 0644
string.h File 378 B 0644
switch_to.h File 1.48 KB 0644
syscall.h File 252 B 0644
termios.h File 1.74 KB 0644
thread_info.h File 3.71 KB 0644
timex.h File 581 B 0644
tlb.h File 483 B 0644
tlbflush.h File 2.94 KB 0644
topology.h File 167 B 0644
types.h File 258 B 0644
uaccess.h File 15.3 KB 0644
ucontext.h File 321 B 0644
unaligned.h File 592 B 0644
unistd.h File 1.23 KB 0644
user.h File 2.1 KB 0644
vga.h File 436 B 0644
xor.h File 148 B 0644