[PATCH] powerpc: Fix handling of fpscr on 64-bit

[linux-2.6] / arch / ppc64 / kernel / misc.S

diff --git a/arch/ppc64/kernel/misc.S b/arch/ppc64/kernel/misc.S
index a33448c2bd916de78f251ed7be9ea1d9973c3b5f..9cae3d5c40e680e6a4d0d5aa83d2e7ceff21029f 100644 (file)
--- a/arch/ppc64/kernel/misc.S
+++ b/arch/ppc64/kernel/misc.S
@@ -451,25 +451,6 @@ _GLOBAL(_outsl_ns)
        sync
        blr     
 
-
-_GLOBAL(cvt_fd)
-       lfd     0,0(r5)         /* load up fpscr value */
-       mtfsf   0xff,0
-       lfs     0,0(r3)
-       stfd    0,0(r4)
-       mffs    0               /* save new fpscr value */
-       stfd    0,0(r5)
-       blr
-
-_GLOBAL(cvt_df)
-       lfd     0,0(r5)         /* load up fpscr value */
-       mtfsf   0xff,0
-       lfd     0,0(r3)
-       stfs    0,0(r4)
-       mffs    0               /* save new fpscr value */
-       stfd    0,0(r5)
-       blr
-
 /*
  * identify_cpu and calls setup_cpu
  * In: r3 = base of the cpu_specs array
@@ -655,38 +636,6 @@ _GLOBAL(disable_kernel_fp)
        isync
        blr
 
-/*
- * giveup_fpu(tsk)
- * Disable FP for the task given as the argument,
- * and save the floating-point registers in its thread_struct.
- * Enables the FPU for use in the kernel on return.
- */
-_GLOBAL(giveup_fpu)
-       mfmsr   r5
-       ori     r5,r5,MSR_FP
-       mtmsrd  r5                      /* enable use of fpu now */
-       isync
-       cmpdi   0,r3,0
-       beqlr-                          /* if no previous owner, done */
-       addi    r3,r3,THREAD            /* want THREAD of task */
-       ld      r5,PT_REGS(r3)
-       cmpdi   0,r5,0
-       SAVE_32FPRS(0, r3)
-       mffs    fr0
-       stfd    fr0,THREAD_FPSCR(r3)
-       beq     1f
-       ld      r4,_MSR-STACK_FRAME_OVERHEAD(r5)
-       li      r3,MSR_FP|MSR_FE0|MSR_FE1
-       andc    r4,r4,r3                /* disable FP for previous task */
-       std     r4,_MSR-STACK_FRAME_OVERHEAD(r5)
-1:
-#ifndef CONFIG_SMP
-       li      r5,0
-       ld      r4,last_task_used_math@got(r2)
-       std     r5,0(r4)
-#endif /* CONFIG_SMP */
-       blr
-
 #ifdef CONFIG_ALTIVEC
 
 #if 0 /* this has no callers for now */