diff options
Diffstat (limited to 'arch/ppc64/kernel/misc.S')
| -rw-r--r-- | arch/ppc64/kernel/misc.S | 51 |
1 files changed, 0 insertions, 51 deletions
diff --git a/arch/ppc64/kernel/misc.S b/arch/ppc64/kernel/misc.S index a33448c2bd9..9cae3d5c40e 100644 --- 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 */ |