D61544.1794748280.diff
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	diff --git a/sys/powerpc/powerpc/altivec.c b/sys/powerpc/powerpc/altivec.c
	--- a/sys/powerpc/powerpc/altivec.c
	+++ b/sys/powerpc/powerpc/altivec.c
	@@ -39,8 +39,10 @@
	#include <sys/limits.h>

	#include <machine/altivec.h>
	+#include <machine/cpufunc.h>
	#include <machine/pcb.h>
	#include <machine/psl.h>
	+#include <machine/spr.h>

	static void
	save_vec_int(struct thread *td)
	@@ -80,6 +82,7 @@
	*/
	__asm __volatile("mfvscr 0; vspltw 0,0,3; stvewx 0,0,%0"
	:: "b"(&pcb->pcb_vec.vscr));
	+ pcb->pcb_vec.vrsave = mfspr(SPR_VRSAVE);

	/*
	* Disable vector unit again
	@@ -126,6 +129,8 @@
	msr = mfmsr();
	mtmsr(msr \| PSL_VEC);

	+ mtspr(SPR_VRSAVE, pcb->pcb_vec.vrsave);
	+
	/*
	* Restore VSCR by first loading it into a vector and then into VSCR.
	* (this needs to done before loading the user's vector registers