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-rw-r--r--arch/mn10300/include/asm/fpu.h132
1 files changed, 0 insertions, 132 deletions
diff --git a/arch/mn10300/include/asm/fpu.h b/arch/mn10300/include/asm/fpu.h
deleted file mode 100644
index a47e995d45f3..000000000000
--- a/arch/mn10300/include/asm/fpu.h
+++ /dev/null
@@ -1,132 +0,0 @@
-/* MN10300 FPU definitions
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- * Derived from include/asm-i386/i387.h: Copyright (C) 1994 Linus Torvalds
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_FPU_H
-#define _ASM_FPU_H
-
-#ifndef __ASSEMBLY__
-
-#include <linux/sched.h>
-#include <asm/exceptions.h>
-#include <asm/sigcontext.h>
-
-#ifdef __KERNEL__
-
-extern asmlinkage void fpu_disabled(void);
-
-#ifdef CONFIG_FPU
-
-#ifdef CONFIG_LAZY_SAVE_FPU
-/* the task that currently owns the FPU state */
-extern struct task_struct *fpu_state_owner;
-#endif
-
-#if (THREAD_USING_FPU & ~0xff)
-#error THREAD_USING_FPU must be smaller than 0x100.
-#endif
-
-static inline void set_using_fpu(struct task_struct *tsk)
-{
- asm volatile(
- "bset %0,(0,%1)"
- :
- : "i"(THREAD_USING_FPU), "a"(&tsk->thread.fpu_flags)
- : "memory", "cc");
-}
-
-static inline void clear_using_fpu(struct task_struct *tsk)
-{
- asm volatile(
- "bclr %0,(0,%1)"
- :
- : "i"(THREAD_USING_FPU), "a"(&tsk->thread.fpu_flags)
- : "memory", "cc");
-}
-
-#define is_using_fpu(tsk) ((tsk)->thread.fpu_flags & THREAD_USING_FPU)
-
-extern asmlinkage void fpu_kill_state(struct task_struct *);
-extern asmlinkage void fpu_exception(struct pt_regs *, enum exception_code);
-extern asmlinkage void fpu_init_state(void);
-extern asmlinkage void fpu_save(struct fpu_state_struct *);
-extern int fpu_setup_sigcontext(struct fpucontext *buf);
-extern int fpu_restore_sigcontext(struct fpucontext *buf);
-
-static inline void unlazy_fpu(struct task_struct *tsk)
-{
- preempt_disable();
-#ifndef CONFIG_LAZY_SAVE_FPU
- if (tsk->thread.fpu_flags & THREAD_HAS_FPU) {
- fpu_save(&tsk->thread.fpu_state);
- tsk->thread.fpu_flags &= ~THREAD_HAS_FPU;
- tsk->thread.uregs->epsw &= ~EPSW_FE;
- }
-#else
- if (fpu_state_owner == tsk)
- fpu_save(&tsk->thread.fpu_state);
-#endif
- preempt_enable();
-}
-
-static inline void exit_fpu(struct task_struct *tsk)
-{
-#ifdef CONFIG_LAZY_SAVE_FPU
- preempt_disable();
- if (fpu_state_owner == tsk)
- fpu_state_owner = NULL;
- preempt_enable();
-#endif
-}
-
-static inline void flush_fpu(void)
-{
- struct task_struct *tsk = current;
-
- preempt_disable();
-#ifndef CONFIG_LAZY_SAVE_FPU
- if (tsk->thread.fpu_flags & THREAD_HAS_FPU) {
- tsk->thread.fpu_flags &= ~THREAD_HAS_FPU;
- tsk->thread.uregs->epsw &= ~EPSW_FE;
- }
-#else
- if (fpu_state_owner == tsk) {
- fpu_state_owner = NULL;
- tsk->thread.uregs->epsw &= ~EPSW_FE;
- }
-#endif
- preempt_enable();
- clear_using_fpu(tsk);
-}
-
-#else /* CONFIG_FPU */
-
-extern asmlinkage
-void unexpected_fpu_exception(struct pt_regs *, enum exception_code);
-#define fpu_exception unexpected_fpu_exception
-
-struct task_struct;
-struct fpu_state_struct;
-static inline bool is_using_fpu(struct task_struct *tsk) { return false; }
-static inline void set_using_fpu(struct task_struct *tsk) {}
-static inline void clear_using_fpu(struct task_struct *tsk) {}
-static inline void fpu_init_state(void) {}
-static inline void fpu_save(struct fpu_state_struct *s) {}
-static inline void fpu_kill_state(struct task_struct *tsk) {}
-static inline void unlazy_fpu(struct task_struct *tsk) {}
-static inline void exit_fpu(struct task_struct *tsk) {}
-static inline void flush_fpu(void) {}
-static inline int fpu_setup_sigcontext(struct fpucontext *buf) { return 0; }
-static inline int fpu_restore_sigcontext(struct fpucontext *buf) { return 0; }
-#endif /* CONFIG_FPU */
-
-#endif /* __KERNEL__ */
-#endif /* !__ASSEMBLY__ */
-#endif /* _ASM_FPU_H */