1 files changed, 0 insertions, 151 deletions

diff --git a/arch/x86_64/kernel/i387_64.c b/arch/x86_64/kernel/i387_64.c
deleted file mode 100644
index 1d58c13bc6bc..000000000000
--- a/arch/x86_64/kernel/i387_64.c
+++ /dev/null
@@ -1,151 +0,0 @@
-/*
- *  linux/arch/x86_64/kernel/i387.c
- *
- *  Copyright (C) 1994 Linus Torvalds
- *  Copyright (C) 2002 Andi Kleen, SuSE Labs
- *
- *  Pentium III FXSR, SSE support
- *  General FPU state handling cleanups
- *      Gareth Hughes <gareth@valinux.com>, May 2000
- * 
- *  x86-64 rework 2002 Andi Kleen. 
- *  Does direct fxsave in and out of user space now for signal handlers.
- *  All the FSAVE<->FXSAVE conversion code has been moved to the 32bit emulation,
- *  the 64bit user space sees a FXSAVE frame directly. 
- */
-
-#include <linux/sched.h>
-#include <linux/init.h>
-#include <asm/processor.h>
-#include <asm/i387.h>
-#include <asm/sigcontext.h>
-#include <asm/user.h>
-#include <asm/ptrace.h>
-#include <asm/uaccess.h>
-
-unsigned int mxcsr_feature_mask __read_mostly = 0xffffffff;
-
-void mxcsr_feature_mask_init(void)
-{
-        unsigned int mask;
-        clts();
-        memset(&current->thread.i387.fxsave, 0, sizeof(struct i387_fxsave_struct));
-        asm volatile("fxsave %0" : : "m" (current->thread.i387.fxsave));
-        mask = current->thread.i387.fxsave.mxcsr_mask;
-        if (mask == 0) mask = 0x0000ffbf;
-        mxcsr_feature_mask &= mask;
-        stts();
-}
-
-/*
- * Called at bootup to set up the initial FPU state that is later cloned
- * into all processes.
- */
-void __cpuinit fpu_init(void)
-{
-        unsigned long oldcr0 = read_cr0();
-        extern void __bad_fxsave_alignment(void);
-                
-        if (offsetof(struct task_struct, thread.i387.fxsave) & 15)
-                __bad_fxsave_alignment();
-        set_in_cr4(X86_CR4_OSFXSR);
-        set_in_cr4(X86_CR4_OSXMMEXCPT);
-
-        write_cr0(oldcr0 & ~((1UL<<3)|(1UL<<2))); /* clear TS and EM */
-
-        mxcsr_feature_mask_init();
-        /* clean state in init */
-        current_thread_info()->status = 0;
-        clear_used_math();
-}
-
-void init_fpu(struct task_struct *child)
-{
-        if (tsk_used_math(child)) {
-                if (child == current)
-                        unlazy_fpu(child);
-                return;
-        }       
-        memset(&child->thread.i387.fxsave, 0, sizeof(struct i387_fxsave_struct));
-        child->thread.i387.fxsave.cwd = 0x37f;
-        child->thread.i387.fxsave.mxcsr = 0x1f80;
-        /* only the device not available exception or ptrace can call init_fpu */
-        set_stopped_child_used_math(child);
-}
-
-/*
- * Signal frame handlers.
- */
-
-int save_i387(struct _fpstate __user *buf)
-{
-        struct task_struct *tsk = current;
-        int err = 0;
-
-        BUILD_BUG_ON(sizeof(struct user_i387_struct) !=
-                        sizeof(tsk->thread.i387.fxsave));
-
-        if ((unsigned long)buf % 16) 
-                printk("save_i387: bad fpstate %p\n",buf); 
-
-        if (!used_math())
-                return 0;
-        clear_used_math(); /* trigger finit */
-        if (task_thread_info(tsk)->status & TS_USEDFPU) {
-                err = save_i387_checking((struct i387_fxsave_struct __user *)buf);
-                if (err) return err;
-                stts();
-                } else {
-                if (__copy_to_user(buf, &tsk->thread.i387.fxsave, 
-                                   sizeof(struct i387_fxsave_struct)))
-                        return -1;
-        } 
-                return 1;
-}
-
-/*
- * ptrace request handlers.
- */
-
-int get_fpregs(struct user_i387_struct __user *buf, struct task_struct *tsk)
-{
-        init_fpu(tsk);
-        return __copy_to_user(buf, &tsk->thread.i387.fxsave,
-                               sizeof(struct user_i387_struct)) ? -EFAULT : 0;
-}
-
-int set_fpregs(struct task_struct *tsk, struct user_i387_struct __user *buf)
-{
-        if (__copy_from_user(&tsk->thread.i387.fxsave, buf, 
-                             sizeof(struct user_i387_struct)))
-                return -EFAULT;
-                return 0;
-}
-
-/*
- * FPU state for core dumps.
- */
-
-int dump_fpu( struct pt_regs *regs, struct user_i387_struct *fpu )
-{
-        struct task_struct *tsk = current;
-
-        if (!used_math())
-                return 0;
-
-        unlazy_fpu(tsk);
-        memcpy(fpu, &tsk->thread.i387.fxsave, sizeof(struct user_i387_struct)); 
-        return 1; 
-}
-
-int dump_task_fpu(struct task_struct *tsk, struct user_i387_struct *fpu)
-{
-        int fpvalid = !!tsk_used_math(tsk);
-
-        if (fpvalid) {
-                if (tsk == current)
-                        unlazy_fpu(tsk);
-                memcpy(fpu, &tsk->thread.i387.fxsave, sizeof(struct user_i387_struct));         
-}
-        return fpvalid;
-}