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authorDavid Howells <dhowells@redhat.com>2009-04-10 09:19:03 -0400
committerDavid Howells <dhowells@redhat.com>2009-04-10 09:19:03 -0400
commitda7616610c8d2ec16a8ada44216e836e5fcbd08b (patch)
treeef3e8ccc7a01694c0ab0eeea387bc46a8807669e /include/asm-mn10300/fpu.h
parent62b8e680e61d3f48f2a12ee248ca03ea8f376926 (diff)
Move arch headers from include/asm-mn10300/ to arch/mn10300/include/asm/.
Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'include/asm-mn10300/fpu.h')
-rw-r--r--include/asm-mn10300/fpu.h85
1 files changed, 0 insertions, 85 deletions
diff --git a/include/asm-mn10300/fpu.h b/include/asm-mn10300/fpu.h
deleted file mode 100644
index 64a2b83a7a6a..000000000000
--- a/include/asm-mn10300/fpu.h
+++ /dev/null
@@ -1,85 +0,0 @@
1/* MN10300 FPU definitions
2 *
3 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
5 * Derived from include/asm-i386/i387.h: Copyright (C) 1994 Linus Torvalds
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public Licence
9 * as published by the Free Software Foundation; either version
10 * 2 of the Licence, or (at your option) any later version.
11 */
12#ifndef _ASM_FPU_H
13#define _ASM_FPU_H
14
15#include <asm/processor.h>
16#include <asm/sigcontext.h>
17#include <asm/user.h>
18
19#ifdef __KERNEL__
20
21/* the task that owns the FPU state */
22extern struct task_struct *fpu_state_owner;
23
24#define set_using_fpu(tsk) \
25do { \
26 (tsk)->thread.fpu_flags |= THREAD_USING_FPU; \
27} while (0)
28
29#define clear_using_fpu(tsk) \
30do { \
31 (tsk)->thread.fpu_flags &= ~THREAD_USING_FPU; \
32} while (0)
33
34#define is_using_fpu(tsk) ((tsk)->thread.fpu_flags & THREAD_USING_FPU)
35
36#define unlazy_fpu(tsk) \
37do { \
38 preempt_disable(); \
39 if (fpu_state_owner == (tsk)) \
40 fpu_save(&tsk->thread.fpu_state); \
41 preempt_enable(); \
42} while (0)
43
44#define exit_fpu() \
45do { \
46 struct task_struct *__tsk = current; \
47 preempt_disable(); \
48 if (fpu_state_owner == __tsk) \
49 fpu_state_owner = NULL; \
50 preempt_enable(); \
51} while (0)
52
53#define flush_fpu() \
54do { \
55 struct task_struct *__tsk = current; \
56 preempt_disable(); \
57 if (fpu_state_owner == __tsk) { \
58 fpu_state_owner = NULL; \
59 __tsk->thread.uregs->epsw &= ~EPSW_FE; \
60 } \
61 preempt_enable(); \
62 clear_using_fpu(__tsk); \
63} while (0)
64
65extern asmlinkage void fpu_init_state(void);
66extern asmlinkage void fpu_kill_state(struct task_struct *);
67extern asmlinkage void fpu_disabled(struct pt_regs *, enum exception_code);
68extern asmlinkage void fpu_exception(struct pt_regs *, enum exception_code);
69
70#ifdef CONFIG_FPU
71extern asmlinkage void fpu_save(struct fpu_state_struct *);
72extern asmlinkage void fpu_restore(struct fpu_state_struct *);
73#else
74#define fpu_save(a)
75#define fpu_restore(a)
76#endif /* CONFIG_FPU */
77
78/*
79 * signal frame handlers
80 */
81extern int fpu_setup_sigcontext(struct fpucontext *buf);
82extern int fpu_restore_sigcontext(struct fpucontext *buf);
83
84#endif /* __KERNEL__ */
85#endif /* _ASM_FPU_H */