cpu-probe.c (559300bc0ef7ccd541656f1189d38e7088389559) cpu-probe.c (f8ede0f700f5478851f242f291d203cde54ca6cf)
1/*
2 * Processor capabilities determination functions.
3 *
4 * Copyright (C) xxxx the Anonymous
5 * Copyright (C) 1994 - 2006 Ralf Baechle
6 * Copyright (C) 2003, 2004 Maciej W. Rozycki
7 * Copyright (C) 2001, 2004 MIPS Inc.
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; either version
12 * 2 of the License, or (at your option) any later version.
13 */
14#include <linux/init.h>
15#include <linux/kernel.h>
16#include <linux/ptrace.h>
17#include <linux/smp.h>
18#include <linux/stddef.h>
1/*
2 * Processor capabilities determination functions.
3 *
4 * Copyright (C) xxxx the Anonymous
5 * Copyright (C) 1994 - 2006 Ralf Baechle
6 * Copyright (C) 2003, 2004 Maciej W. Rozycki
7 * Copyright (C) 2001, 2004 MIPS Inc.
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; either version
12 * 2 of the License, or (at your option) any later version.
13 */
14#include <linux/init.h>
15#include <linux/kernel.h>
16#include <linux/ptrace.h>
17#include <linux/smp.h>
18#include <linux/stddef.h>
19#include <linux/module.h>
19
20#include <asm/bugs.h>
21#include <asm/cpu.h>
22#include <asm/fpu.h>
23#include <asm/mipsregs.h>
24#include <asm/system.h>
25#include <asm/watch.h>
26#include <asm/spram.h>
27/*
28 * Not all of the MIPS CPUs have the "wait" instruction available. Moreover,
29 * the implementation of the "wait" feature differs between CPU families. This
30 * points to the function that implements CPU specific wait.
31 * The wait instruction stops the pipeline and reduces the power consumption of
32 * the CPU very much.
33 */
34void (*cpu_wait)(void);
20
21#include <asm/bugs.h>
22#include <asm/cpu.h>
23#include <asm/fpu.h>
24#include <asm/mipsregs.h>
25#include <asm/system.h>
26#include <asm/watch.h>
27#include <asm/spram.h>
28/*
29 * Not all of the MIPS CPUs have the "wait" instruction available. Moreover,
30 * the implementation of the "wait" feature differs between CPU families. This
31 * points to the function that implements CPU specific wait.
32 * The wait instruction stops the pipeline and reduces the power consumption of
33 * the CPU very much.
34 */
35void (*cpu_wait)(void);
36EXPORT_SYMBOL(cpu_wait);
35
36static void r3081_wait(void)
37{
38 unsigned long cfg = read_c0_conf();
39 write_c0_conf(cfg | R30XX_CONF_HALT);
40}
41
42static void r39xx_wait(void)

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38static void r3081_wait(void)
39{
40 unsigned long cfg = read_c0_conf();
41 write_c0_conf(cfg | R30XX_CONF_HALT);
42}
43
44static void r39xx_wait(void)

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