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Commit 37f9ef55 authored by Benjamin Herrenschmidt's avatar Benjamin Herrenschmidt
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powerpc: Fix bug in move of altivec code to vector.S 



The patch that moved to vector.S and made common between 32 and 64-bit the
altivec code had a nasty bug on 32-bit (did I really test that ?) which
causes the kernel to blr back into userspace ... oops :-)

Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent 10f52dd9

arch/powerpc/kernel/head_32.S

+4 −2
Original line number Diff line number Diff line
@@ -733,9 +733,11 @@ END_MMU_FTR_SECTION_IFSET(MMU_FTR_NEED_DTLB_SW_LRU) 
AltiVecUnavailable:

	EXCEPTION_PROLOG

#ifdef CONFIG_ALTIVEC

	bne	load_up_altivec		/* if from user, just load it up */

	beq	1f

	bl	load_up_altivec		/* if from user, just load it up */

	b	fast_exception_return

#endif /* CONFIG_ALTIVEC */

	addi	r3,r1,STACK_FRAME_OVERHEAD

1:	addi	r3,r1,STACK_FRAME_OVERHEAD

	EXC_XFER_EE_LITE(0xf20, altivec_unavailable_exception)



PerformanceMonitor: