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- /*
- * linux/include/asm-arm/fpstate.h
- *
- * Copyright (C) 1995 Russell King
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
- #ifndef __ASM_ARM_FPSTATE_H
- #define __ASM_ARM_FPSTATE_H
-
-
- #ifndef __ASSEMBLY__
-
- /*
- * VFP storage area has:
- * - FPEXC, FPSCR, FPINST and FPINST2.
- * - 16 double precision data registers
- * - an implementation-dependant word of state for FLDMX/FSTMX
- *
- * FPEXC will always be non-zero once the VFP has been used in this process.
- */
-
- struct vfp_hard_struct {
- __u64 fpregs[16];
- #if __LINUX_ARM_ARCH__ < 6
- __u32 fpmx_state;
- #endif
- __u32 fpexc;
- __u32 fpscr;
- /*
- * VFP implementation specific state
- */
- __u32 fpinst;
- __u32 fpinst2;
- };
-
- union vfp_state {
- struct vfp_hard_struct hard;
- };
-
- extern void vfp_flush_thread(union vfp_state *);
- extern void vfp_release_thread(union vfp_state *);
-
- #define FP_HARD_SIZE 35
-
- struct fp_hard_struct {
- unsigned int save[FP_HARD_SIZE]; /* as yet undefined */
- };
-
- #define FP_SOFT_SIZE 35
-
- struct fp_soft_struct {
- unsigned int save[FP_SOFT_SIZE]; /* undefined information */
- };
-
- #define IWMMXT_SIZE 0x98
-
- struct iwmmxt_struct {
- unsigned int save[IWMMXT_SIZE / sizeof(unsigned int)];
- };
-
- union fp_state {
- struct fp_hard_struct hard;
- struct fp_soft_struct soft;
- #ifdef CONFIG_IWMMXT
- struct iwmmxt_struct iwmmxt;
- #endif
- };
-
- #define FP_SIZE (sizeof(union fp_state) / sizeof(int))
-
- #endif
-
- #endif
-