diff options
Diffstat (limited to 'arch/powerpc/kernel/misc_64.S')
-rw-r--r-- | arch/powerpc/kernel/misc_64.S | 92 |
1 files changed, 0 insertions, 92 deletions
diff --git a/arch/powerpc/kernel/misc_64.S b/arch/powerpc/kernel/misc_64.S index b9530b2395a..a5cf9c1356a 100644 --- a/arch/powerpc/kernel/misc_64.S +++ b/arch/powerpc/kernel/misc_64.S @@ -457,98 +457,6 @@ _GLOBAL(disable_kernel_fp) isync blr -#ifdef CONFIG_ALTIVEC - -#if 0 /* this has no callers for now */ -/* - * disable_kernel_altivec() - * Disable the VMX. - */ -_GLOBAL(disable_kernel_altivec) - mfmsr r3 - rldicl r0,r3,(63-MSR_VEC_LG),1 - rldicl r3,r0,(MSR_VEC_LG+1),0 - mtmsrd r3 /* disable use of VMX now */ - isync - blr -#endif /* 0 */ - -/* - * giveup_altivec(tsk) - * Disable VMX for the task given as the argument, - * and save the vector registers in its thread_struct. - * Enables the VMX for use in the kernel on return. - */ -_GLOBAL(giveup_altivec) - mfmsr r5 - oris r5,r5,MSR_VEC@h - mtmsrd r5 /* enable use of VMX 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_32VRS(0,r4,r3) - mfvscr vr0 - li r4,THREAD_VSCR - stvx vr0,r4,r3 - beq 1f - ld r4,_MSR-STACK_FRAME_OVERHEAD(r5) -#ifdef CONFIG_VSX -BEGIN_FTR_SECTION - lis r3,(MSR_VEC|MSR_VSX)@h -FTR_SECTION_ELSE - lis r3,MSR_VEC@h -ALT_FTR_SECTION_END_IFSET(CPU_FTR_VSX) -#else - lis r3,MSR_VEC@h -#endif - 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_altivec@got(r2) - std r5,0(r4) -#endif /* CONFIG_SMP */ - blr - -#endif /* CONFIG_ALTIVEC */ - -#ifdef CONFIG_VSX -/* - * __giveup_vsx(tsk) - * Disable VSX for the task given as the argument. - * Does NOT save vsx registers. - * Enables the VSX for use in the kernel on return. - */ -_GLOBAL(__giveup_vsx) - mfmsr r5 - oris r5,r5,MSR_VSX@h - mtmsrd r5 /* enable use of VSX 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 - beq 1f - ld r4,_MSR-STACK_FRAME_OVERHEAD(r5) - lis r3,MSR_VSX@h - andc r4,r4,r3 /* disable VSX for previous task */ - std r4,_MSR-STACK_FRAME_OVERHEAD(r5) -1: -#ifndef CONFIG_SMP - li r5,0 - ld r4,last_task_used_vsx@got(r2) - std r5,0(r4) -#endif /* CONFIG_SMP */ - blr - -#endif /* CONFIG_VSX */ - /* kexec_wait(phys_cpu) * * wait for the flag to change, indicating this kernel is going away but |