Contents of /alx-src/tags/kernel26-2.6.12-alx-r9/include/asm-arm/fpstate.h
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Wed Mar 4 11:03:09 2009 UTC (15 years, 3 months ago) by niro
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Wed Mar 4 11:03:09 2009 UTC (15 years, 3 months ago) by niro
File MIME type: text/plain
File size: 1469 byte(s)
Tag kernel26-2.6.12-alx-r9
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 | |
27 | struct 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 | |
39 | union vfp_state { |
40 | struct vfp_hard_struct hard; |
41 | }; |
42 | |
43 | extern void vfp_flush_thread(union vfp_state *); |
44 | extern void vfp_release_thread(union vfp_state *); |
45 | |
46 | #define FP_HARD_SIZE 35 |
47 | |
48 | struct fp_hard_struct { |
49 | unsigned int save[FP_HARD_SIZE]; /* as yet undefined */ |
50 | }; |
51 | |
52 | #define FP_SOFT_SIZE 35 |
53 | |
54 | struct fp_soft_struct { |
55 | unsigned int save[FP_SOFT_SIZE]; /* undefined information */ |
56 | }; |
57 | |
58 | struct iwmmxt_struct { |
59 | unsigned int save[0x98/sizeof(int) + 1]; |
60 | }; |
61 | |
62 | union 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 |