tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Copyright (C) 1999 Cort Dougan <cort@cs.nmt.edu>
3 */
4#ifndef _ASM_POWERPC_SWITCH_TO_H
5#define _ASM_POWERPC_SWITCH_TO_H
6
7struct thread_struct;
8struct task_struct;
9struct pt_regs;
10
11extern struct task_struct *__switch_to(struct task_struct *,
12 struct task_struct *);
13#define switch_to(prev, next, last) ((last) = __switch_to((prev), (next)))
14
15struct thread_struct;
16extern struct task_struct *_switch(struct thread_struct *prev,
17 struct thread_struct *next);
18
19extern void giveup_fpu(struct task_struct *);
20extern void load_up_fpu(void);
21extern void disable_kernel_fp(void);
22extern void enable_kernel_fp(void);
23extern void flush_fp_to_thread(struct task_struct *);
24extern void enable_kernel_altivec(void);
25extern void load_up_altivec(struct task_struct *);
26extern int emulate_altivec(struct pt_regs *);
27extern void __giveup_vsx(struct task_struct *);
28extern void giveup_vsx(struct task_struct *);
29extern void enable_kernel_spe(void);
30extern void giveup_spe(struct task_struct *);
31extern void load_up_spe(struct task_struct *);
32
33#ifndef CONFIG_SMP
34extern void discard_lazy_cpu_state(void);
35#else
36static inline void discard_lazy_cpu_state(void)
37{
38}
39#endif
40
41#ifdef CONFIG_ALTIVEC
42extern void flush_altivec_to_thread(struct task_struct *);
43extern void giveup_altivec(struct task_struct *);
44extern void giveup_altivec_notask(void);
45#else
46static inline void flush_altivec_to_thread(struct task_struct *t)
47{
48}
49static inline void giveup_altivec(struct task_struct *t)
50{
51}
52#endif
53
54#ifdef CONFIG_VSX
55extern void flush_vsx_to_thread(struct task_struct *);
56#else
57static inline void flush_vsx_to_thread(struct task_struct *t)
58{
59}
60#endif
61
62#ifdef CONFIG_SPE
63extern void flush_spe_to_thread(struct task_struct *);
64#else
65static inline void flush_spe_to_thread(struct task_struct *t)
66{
67}
68#endif
69
70#endif /* _ASM_POWERPC_SWITCH_TO_H */