x86: x86 i387 cleanup

This removes all the old code that is no longer used after
the i387 unification and cleanup.  The i387_64.h is renamed
to i387.h with no changes, but since it replaces the nonempty
one-line stub i387.h it looks like a big diff and not a rename.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 0 insertions, 149 deletions

diff --git a/include/asm-x86/i387_32.h b/include/asm-x86/i387_32.h
deleted file mode 100644
index 9ac2502..0000000
--- a/include/asm-x86/i387_32.h
+++ /dev/null
@@ -1,149 +0,0 @@
-/*
- * Copyright (C) 1994 Linus Torvalds
- *
- * Pentium III FXSR, SSE support
- * General FPU state handling cleanups
- *	Gareth Hughes <gareth@valinux.com>, May 2000
- */
-
-#ifndef __ASM_I386_I387_H
-#define __ASM_I386_I387_H
-
-#include <linux/sched.h>
-#include <linux/init.h>
-#include <linux/kernel_stat.h>
-#include <asm/processor.h>
-#include <asm/sigcontext.h>
-#include <asm/user.h>
-
-extern void mxcsr_feature_mask_init(void);
-extern void init_fpu(struct task_struct *);
-
-/*
- * FPU lazy state save handling...
- */
-
-/*
- * The "nop" is needed to make the instructions the same
- * length.
- */
-#define restore_fpu(tsk)			\
-	alternative_input(			\
-		"nop ; frstor %1",		\
-		"fxrstor %1",			\
-		X86_FEATURE_FXSR,		\
-		"m" ((tsk)->thread.i387.fxsave))
-
-extern void kernel_fpu_begin(void);
-#define kernel_fpu_end() do { stts(); preempt_enable(); } while(0)
-
-/* We need a safe address that is cheap to find and that is already
-   in L1 during context switch. The best choices are unfortunately
-   different for UP and SMP */
-#ifdef CONFIG_SMP
-#define safe_address (__per_cpu_offset[0])
-#else
-#define safe_address (kstat_cpu(0).cpustat.user)
-#endif
-
-/*
- * These must be called with preempt disabled
- */
-static inline void __save_init_fpu( struct task_struct *tsk )
-{
-	/* Use more nops than strictly needed in case the compiler
-	   varies code */
-	alternative_input(
-		"fnsave %[fx] ;fwait;" GENERIC_NOP8 GENERIC_NOP4,
-		"fxsave %[fx]\n"
-		"bt $7,%[fsw] ; jnc 1f ; fnclex\n1:",
-		X86_FEATURE_FXSR,
-		[fx] "m" (tsk->thread.i387.fxsave),
-		[fsw] "m" (tsk->thread.i387.fxsave.swd) : "memory");
-	/* AMD K7/K8 CPUs don't save/restore FDP/FIP/FOP unless an exception
-	   is pending.  Clear the x87 state here by setting it to fixed
-   	   values. safe_address is a random variable that should be in L1 */
-	alternative_input(
-		GENERIC_NOP8 GENERIC_NOP2,
-		"emms\n\t"	  	/* clear stack tags */
-		"fildl %[addr]", 	/* set F?P to defined value */
-		X86_FEATURE_FXSAVE_LEAK,
-		[addr] "m" (safe_address));
-	task_thread_info(tsk)->status &= ~TS_USEDFPU;
-}
-
-#define __unlazy_fpu( tsk ) do {				\
-	if (task_thread_info(tsk)->status & TS_USEDFPU) {	\
-		__save_init_fpu(tsk);				\
-		stts();						\
-	} else							\
-		tsk->fpu_counter = 0;				\
-} while (0)
-
-#define __clear_fpu( tsk )					\
-do {								\
-	if (task_thread_info(tsk)->status & TS_USEDFPU) {	\
-		asm volatile("fnclex ; fwait");			\
-		task_thread_info(tsk)->status &= ~TS_USEDFPU;	\
-		stts();						\
-	}							\
-} while (0)
-
-
-/*
- * These disable preemption on their own and are safe
- */
-static inline void save_init_fpu( struct task_struct *tsk )
-{
-	preempt_disable();
-	__save_init_fpu(tsk);
-	stts();
-	preempt_enable();
-}
-
-#define unlazy_fpu( tsk ) do {	\
-	preempt_disable();	\
-	__unlazy_fpu(tsk);	\
-	preempt_enable();	\
-} while (0)
-
-#define clear_fpu( tsk ) do {	\
-	preempt_disable();	\
-	__clear_fpu( tsk );	\
-	preempt_enable();	\
-} while (0)
-
-/*
- * FPU state interaction...
- */
-extern unsigned short get_fpu_cwd( struct task_struct *tsk );
-extern unsigned short get_fpu_swd( struct task_struct *tsk );
-extern unsigned short get_fpu_mxcsr( struct task_struct *tsk );
-extern asmlinkage void math_state_restore(void);
-
-/*
- * Signal frame handlers...
- */
-extern int save_i387( struct _fpstate __user *buf );
-extern int restore_i387( struct _fpstate __user *buf );
-
-/*
- * ptrace request handers...
- */
-extern int get_fpregs( struct user_i387_struct __user *buf,
-		       struct task_struct *tsk );
-extern int set_fpregs( struct task_struct *tsk,
-		       struct user_i387_struct __user *buf );
-
-extern int get_fpxregs( struct user_fxsr_struct __user *buf,
-			struct task_struct *tsk );
-extern int set_fpxregs( struct task_struct *tsk,
-			struct user_fxsr_struct __user *buf );
-
-/*
- * FPU state for core dumps...
- */
-extern int dump_fpu( struct pt_regs *regs,
-		     struct user_i387_struct *fpu );
-
-#endif /* __ASM_I386_I387_H */