ia64/linux-2.6.18-xen.hg

view include/asm-arm/fpstate.h @ 782:9ab1c319531f

merge with linux-2.6.18-xen.hg
author Isaku Yamahata <yamahata@valinux.co.jp>
date Wed Jan 28 13:07:23 2009 +0900 (2009-01-28)
parents 831230e53067
children
line source
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 */
11 #ifndef __ASM_ARM_FPSTATE_H
12 #define __ASM_ARM_FPSTATE_H
15 #ifndef __ASSEMBLY__
17 /*
18 * VFP storage area has:
19 * - FPEXC, FPSCR, FPINST and FPINST2.
20 * - 16 double precision data registers
21 * - an implementation-dependant word of state for FLDMX/FSTMX
22 *
23 * FPEXC will always be non-zero once the VFP has been used in this process.
24 */
26 struct vfp_hard_struct {
27 __u64 fpregs[16];
28 #if __LINUX_ARM_ARCH__ < 6
29 __u32 fpmx_state;
30 #endif
31 __u32 fpexc;
32 __u32 fpscr;
33 /*
34 * VFP implementation specific state
35 */
36 __u32 fpinst;
37 __u32 fpinst2;
38 };
40 union vfp_state {
41 struct vfp_hard_struct hard;
42 };
44 extern void vfp_flush_thread(union vfp_state *);
45 extern void vfp_release_thread(union vfp_state *);
47 #define FP_HARD_SIZE 35
49 struct fp_hard_struct {
50 unsigned int save[FP_HARD_SIZE]; /* as yet undefined */
51 };
53 #define FP_SOFT_SIZE 35
55 struct fp_soft_struct {
56 unsigned int save[FP_SOFT_SIZE]; /* undefined information */
57 };
59 #define IWMMXT_SIZE 0x98
61 struct iwmmxt_struct {
62 unsigned int save[IWMMXT_SIZE / sizeof(unsigned int)];
63 };
65 union fp_state {
66 struct fp_hard_struct hard;
67 struct fp_soft_struct soft;
68 #ifdef CONFIG_IWMMXT
69 struct iwmmxt_struct iwmmxt;
70 #endif
71 };
73 #define FP_SIZE (sizeof(union fp_state) / sizeof(int))
75 struct crunch_state {
76 unsigned int mvdx[16][2];
77 unsigned int mvax[4][3];
78 unsigned int dspsc[2];
79 };
81 #define CRUNCH_SIZE sizeof(struct crunch_state)
83 #endif
85 #endif