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  |