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-rw-r--r--include/asm-mips/fpu.h153
1 files changed, 0 insertions, 153 deletions
diff --git a/include/asm-mips/fpu.h b/include/asm-mips/fpu.h
deleted file mode 100644
index 8a3ef247659a..000000000000
--- a/include/asm-mips/fpu.h
+++ /dev/null
@@ -1,153 +0,0 @@
-/*
- * Copyright (C) 2002 MontaVista Software Inc.
- * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-#ifndef _ASM_FPU_H
-#define _ASM_FPU_H
-
-#include <linux/sched.h>
-#include <linux/thread_info.h>
-#include <linux/bitops.h>
-
-#include <asm/mipsregs.h>
-#include <asm/cpu.h>
-#include <asm/cpu-features.h>
-#include <asm/hazards.h>
-#include <asm/processor.h>
-#include <asm/current.h>
-
-#ifdef CONFIG_MIPS_MT_FPAFF
-#include <asm/mips_mt.h>
-#endif
-
-struct sigcontext;
-struct sigcontext32;
-
-extern asmlinkage int (*save_fp_context)(struct sigcontext __user *sc);
-extern asmlinkage int (*restore_fp_context)(struct sigcontext __user *sc);
-
-extern asmlinkage int (*save_fp_context32)(struct sigcontext32 __user *sc);
-extern asmlinkage int (*restore_fp_context32)(struct sigcontext32 __user *sc);
-
-extern void fpu_emulator_init_fpu(void);
-extern int fpu_emulator_save_context(struct sigcontext __user *sc);
-extern int fpu_emulator_restore_context(struct sigcontext __user *sc);
-extern void _init_fpu(void);
-extern void _save_fp(struct task_struct *);
-extern void _restore_fp(struct task_struct *);
-
-#define __enable_fpu() \
-do { \
- set_c0_status(ST0_CU1); \
- enable_fpu_hazard(); \
-} while (0)
-
-#define __disable_fpu() \
-do { \
- clear_c0_status(ST0_CU1); \
- disable_fpu_hazard(); \
-} while (0)
-
-#define enable_fpu() \
-do { \
- if (cpu_has_fpu) \
- __enable_fpu(); \
-} while (0)
-
-#define disable_fpu() \
-do { \
- if (cpu_has_fpu) \
- __disable_fpu(); \
-} while (0)
-
-
-#define clear_fpu_owner() clear_thread_flag(TIF_USEDFPU)
-
-static inline int __is_fpu_owner(void)
-{
- return test_thread_flag(TIF_USEDFPU);
-}
-
-static inline int is_fpu_owner(void)
-{
- return cpu_has_fpu && __is_fpu_owner();
-}
-
-static inline void __own_fpu(void)
-{
- __enable_fpu();
- KSTK_STATUS(current) |= ST0_CU1;
- set_thread_flag(TIF_USEDFPU);
-}
-
-static inline void own_fpu_inatomic(int restore)
-{
- if (cpu_has_fpu && !__is_fpu_owner()) {
- __own_fpu();
- if (restore)
- _restore_fp(current);
- }
-}
-
-static inline void own_fpu(int restore)
-{
- preempt_disable();
- own_fpu_inatomic(restore);
- preempt_enable();
-}
-
-static inline void lose_fpu(int save)
-{
- preempt_disable();
- if (is_fpu_owner()) {
- if (save)
- _save_fp(current);
- KSTK_STATUS(current) &= ~ST0_CU1;
- clear_thread_flag(TIF_USEDFPU);
- __disable_fpu();
- }
- preempt_enable();
-}
-
-static inline void init_fpu(void)
-{
- preempt_disable();
- if (cpu_has_fpu) {
- __own_fpu();
- _init_fpu();
- } else {
- fpu_emulator_init_fpu();
- }
- preempt_enable();
-}
-
-static inline void save_fp(struct task_struct *tsk)
-{
- if (cpu_has_fpu)
- _save_fp(tsk);
-}
-
-static inline void restore_fp(struct task_struct *tsk)
-{
- if (cpu_has_fpu)
- _restore_fp(tsk);
-}
-
-static inline fpureg_t *get_fpu_regs(struct task_struct *tsk)
-{
- if (tsk == current) {
- preempt_disable();
- if (is_fpu_owner())
- _save_fp(current);
- preempt_enable();
- }
-
- return tsk->thread.fpu.fpr;
-}
-
-#endif /* _ASM_FPU_H */