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Linux kernel mirror (for testing)
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1#ifndef __ASM_SH_SYSTEM_64_H
2#define __ASM_SH_SYSTEM_64_H
3
4/*
5 * include/asm-sh/system_64.h
6 *
7 * Copyright (C) 2000, 2001 Paolo Alberelli
8 * Copyright (C) 2003 Paul Mundt
9 * Copyright (C) 2004 Richard Curnow
10 *
11 * This file is subject to the terms and conditions of the GNU General Public
12 * License. See the file "COPYING" in the main directory of this archive
13 * for more details.
14 */
15#include <cpu/registers.h>
16#include <asm/processor.h>
17
18/*
19 * switch_to() should switch tasks to task nr n, first
20 */
21struct thread_struct;
22struct task_struct *sh64_switch_to(struct task_struct *prev,
23 struct thread_struct *prev_thread,
24 struct task_struct *next,
25 struct thread_struct *next_thread);
26
27#define switch_to(prev,next,last) \
28do { \
29 if (last_task_used_math != next) { \
30 struct pt_regs *regs = next->thread.uregs; \
31 if (regs) regs->sr |= SR_FD; \
32 } \
33 last = sh64_switch_to(prev, &prev->thread, next, \
34 &next->thread); \
35} while (0)
36
37#define jump_to_uncached() do { } while (0)
38#define back_to_cached() do { } while (0)
39
40#define __icbi(addr) __asm__ __volatile__ ( "icbi %0, 0\n\t" : : "r" (addr))
41#define __ocbp(addr) __asm__ __volatile__ ( "ocbp %0, 0\n\t" : : "r" (addr))
42#define __ocbi(addr) __asm__ __volatile__ ( "ocbi %0, 0\n\t" : : "r" (addr))
43#define __ocbwb(addr) __asm__ __volatile__ ( "ocbwb %0, 0\n\t" : : "r" (addr))
44
45static inline reg_size_t register_align(void *val)
46{
47 return (unsigned long long)(signed long long)(signed long)val;
48}
49
50extern void phys_stext(void);
51
52static inline void trigger_address_error(void)
53{
54 phys_stext();
55}
56
57#define SR_BL_LL 0x0000000010000000LL
58
59static inline void set_bl_bit(void)
60{
61 unsigned long long __dummy0, __dummy1 = SR_BL_LL;
62
63 __asm__ __volatile__("getcon " __SR ", %0\n\t"
64 "or %0, %1, %0\n\t"
65 "putcon %0, " __SR "\n\t"
66 : "=&r" (__dummy0)
67 : "r" (__dummy1));
68
69}
70
71static inline void clear_bl_bit(void)
72{
73 unsigned long long __dummy0, __dummy1 = ~SR_BL_LL;
74
75 __asm__ __volatile__("getcon " __SR ", %0\n\t"
76 "and %0, %1, %0\n\t"
77 "putcon %0, " __SR "\n\t"
78 : "=&r" (__dummy0)
79 : "r" (__dummy1));
80}
81
82#endif /* __ASM_SH_SYSTEM_64_H */