/arch/arm/include/asm/cpu-multi32.h

 1/*
 2 *  arch/arm/include/asm/cpu-multi32.h
 3 *
 4 *  Copyright (C) 2000 Russell King
 5 *
 6 * This program is free software; you can redistribute it and/or modify
 7 * it under the terms of the GNU General Public License version 2 as
 8 * published by the Free Software Foundation.
 9 */
10#include <asm/page.h>
11
12struct mm_struct;
13
14/*
15 * Don't change this structure - ASM code
16 * relies on it.
17 */
18extern struct processor {
19	/* MISC
20	 * get data abort address/flags
21	 */
22	void (*_data_abort)(unsigned long pc);
23	/*
24	 * Retrieve prefetch fault address
25	 */
26	unsigned long (*_prefetch_abort)(unsigned long lr);
27	/*
28	 * Set up any processor specifics
29	 */
30	void (*_proc_init)(void);
31	/*
32	 * Disable any processor specifics
33	 */
34	void (*_proc_fin)(void);
35	/*
36	 * Special stuff for a reset
37	 */
38	void (*reset)(unsigned long addr) __attribute__((noreturn));
39	/*
40	 * Idle the processor
41	 */
42	int (*_do_idle)(void);
43	/*
44	 * Processor architecture specific
45	 */
46	/*
47	 * clean a virtual address range from the
48	 * D-cache without flushing the cache.
49	 */
50	void (*dcache_clean_area)(void *addr, int size);
51
52	/*
53	 * Set the page table
54	 */
55	void (*switch_mm)(unsigned long pgd_phys, struct mm_struct *mm);
56	/*
57	 * Set a possibly extended PTE.  Non-extended PTEs should
58	 * ignore 'ext'.
59	 */
60	void (*set_pte_ext)(pte_t *ptep, pte_t pte, unsigned int ext);
61} processor;
62
63#define cpu_proc_init()			processor._proc_init()
64#define cpu_proc_fin()			processor._proc_fin()
65#define cpu_reset(addr)			processor.reset(addr)
66#define cpu_do_idle()			processor._do_idle()
67#define cpu_dcache_clean_area(addr,sz)	processor.dcache_clean_area(addr,sz)
68#define cpu_set_pte_ext(ptep,pte,ext)	processor.set_pte_ext(ptep,pte,ext)
69#define cpu_do_switch_mm(pgd,mm)	processor.switch_mm(pgd,mm)