fs: use kmem_cache_zalloc instead
[pv_ops_mirror.git] / include / asm-arm / fpstate.h
blobf31cda5a55eeb04d7031c227ec7b1071c77338fd
1 /*
2 * linux/include/asm-arm/fpstate.h
4 * Copyright (C) 1995 Russell King
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__
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
23 * FPEXC will always be non-zero once the VFP has been used in this process.
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;
34 * VFP implementation specific state
36 __u32 fpinst;
37 __u32 fpinst2;
38 #ifdef CONFIG_SMP
39 __u32 cpu;
40 #endif
43 union vfp_state {
44 struct vfp_hard_struct hard;
47 extern void vfp_flush_thread(union vfp_state *);
48 extern void vfp_release_thread(union vfp_state *);
50 #define FP_HARD_SIZE 35
52 struct fp_hard_struct {
53 unsigned int save[FP_HARD_SIZE]; /* as yet undefined */
56 #define FP_SOFT_SIZE 35
58 struct fp_soft_struct {
59 unsigned int save[FP_SOFT_SIZE]; /* undefined information */
62 #define IWMMXT_SIZE 0x98
64 struct iwmmxt_struct {
65 unsigned int save[IWMMXT_SIZE / sizeof(unsigned int)];
68 union fp_state {
69 struct fp_hard_struct hard;
70 struct fp_soft_struct soft;
71 #ifdef CONFIG_IWMMXT
72 struct iwmmxt_struct iwmmxt;
73 #endif
76 #define FP_SIZE (sizeof(union fp_state) / sizeof(int))
78 struct crunch_state {
79 unsigned int mvdx[16][2];
80 unsigned int mvax[4][3];
81 unsigned int dspsc[2];
84 #define CRUNCH_SIZE sizeof(struct crunch_state)
86 #endif
88 #endif