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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 <asm/processor.h> | |
16 | ||
17 | /* | |
18 | * switch_to() should switch tasks to task nr n, first | |
19 | */ | |
20 | struct task_struct *sh64_switch_to(struct task_struct *prev, | |
21 | struct thread_struct *prev_thread, | |
22 | struct task_struct *next, | |
23 | struct thread_struct *next_thread); | |
24 | ||
25 | #define switch_to(prev,next,last) \ | |
26 | do { \ | |
27 | if (last_task_used_math != next) { \ | |
28 | struct pt_regs *regs = next->thread.uregs; \ | |
29 | if (regs) regs->sr |= SR_FD; \ | |
30 | } \ | |
31 | last = sh64_switch_to(prev, &prev->thread, next, \ | |
32 | &next->thread); \ | |
33 | } while (0) | |
34 | ||
cbaa118e SM |
35 | #define __uses_jump_to_uncached |
36 | ||
37 | #define jump_to_uncached() do { } while (0) | |
38 | #define back_to_cached() do { } while (0) | |
a62a3861 PM |
39 | |
40 | #endif /* __ASM_SH_SYSTEM_64_H */ |