x86/fpu: Move the no_387 handling and FPU detection code into init.c

[deliverable/linux.git] / arch / x86 / kernel / fpu / core.c

diff --git a/arch/x86/kernel/fpu/core.c b/arch/x86/kernel/fpu/core.c
index b05199fa168cdfe6bc970f536c85d53415889875..9211582f5d3f994b5c2b9002d4ea9c95aef0cb9b 100644 (file)
--- a/arch/x86/kernel/fpu/core.c
+++ b/arch/x86/kernel/fpu/core.c
@@ -581,37 +581,3 @@ int dump_fpu(struct pt_regs *regs, struct user_i387_struct *fpu)
 EXPORT_SYMBOL(dump_fpu);
 
 #endif /* CONFIG_X86_32 || CONFIG_IA32_EMULATION */
-
-static int __init no_387(char *s)
-{
-       setup_clear_cpu_cap(X86_FEATURE_FPU);
-       return 1;
-}
-
-__setup("no387", no_387);
-
-/*
- * Set the X86_FEATURE_FPU CPU-capability bit based on
- * trying to execute an actual sequence of FPU instructions:
- */
-void fpu__detect(struct cpuinfo_x86 *c)
-{
-       unsigned long cr0;
-       u16 fsw, fcw;
-
-       fsw = fcw = 0xffff;
-
-       cr0 = read_cr0();
-       cr0 &= ~(X86_CR0_TS | X86_CR0_EM);
-       write_cr0(cr0);
-
-       asm volatile("fninit ; fnstsw %0 ; fnstcw %1"
-                    : "+m" (fsw), "+m" (fcw));
-
-       if (fsw == 0 && (fcw & 0x103f) == 0x003f)
-               set_cpu_cap(c, X86_FEATURE_FPU);
-       else
-               clear_cpu_cap(c, X86_FEATURE_FPU);
-
-       /* The final cr0 value is set in fpu_init() */
-}