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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-arm/fpstate.h
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/asm-arm/fpstate.h')
-rw-r--r--include/asm-arm/fpstate.h74
1 files changed, 74 insertions, 0 deletions
diff --git a/include/asm-arm/fpstate.h b/include/asm-arm/fpstate.h
new file mode 100644
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+++ b/include/asm-arm/fpstate.h
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1/*
2 * linux/include/asm-arm/fpstate.h
3 *
4 * Copyright (C) 1995 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
11#ifndef __ASM_ARM_FPSTATE_H
12#define __ASM_ARM_FPSTATE_H
13
14#include <linux/config.h>
15
16#ifndef __ASSEMBLY__
17
18/*
19 * VFP storage area has:
20 * - FPEXC, FPSCR, FPINST and FPINST2.
21 * - 16 double precision data registers
22 * - an implementation-dependant word of state for FLDMX/FSTMX
23 *
24 * FPEXC will always be non-zero once the VFP has been used in this process.
25 */
26
27struct vfp_hard_struct {
28 __u64 fpregs[16];
29 __u32 fpmx_state;
30 __u32 fpexc;
31 __u32 fpscr;
32 /*
33 * VFP implementation specific state
34 */
35 __u32 fpinst;
36 __u32 fpinst2;
37};
38
39union vfp_state {
40 struct vfp_hard_struct hard;
41};
42
43extern void vfp_flush_thread(union vfp_state *);
44extern void vfp_release_thread(union vfp_state *);
45
46#define FP_HARD_SIZE 35
47
48struct fp_hard_struct {
49 unsigned int save[FP_HARD_SIZE]; /* as yet undefined */
50};
51
52#define FP_SOFT_SIZE 35
53
54struct fp_soft_struct {
55 unsigned int save[FP_SOFT_SIZE]; /* undefined information */
56};
57
58struct iwmmxt_struct {
59 unsigned int save[0x98/sizeof(int) + 1];
60};
61
62union fp_state {
63 struct fp_hard_struct hard;
64 struct fp_soft_struct soft;
65#ifdef CONFIG_IWMMXT
66 struct iwmmxt_struct iwmmxt;
67#endif
68};
69
70#define FP_SIZE (sizeof(union fp_state) / sizeof(int))
71
72#endif
73
74#endif