[PATCH][PPC32] Fix e500 SPE saving of context

[Kumar Gala]

All,

Fix the fact that we were not the signal processing engine status 
and control register (SPEFSCR) on giveup_spe.  Causes problems when
the kernel tries to read or modify the SPEFSCR.

Signed-off-by: Kumar Gala <kumar.gala@xxxxxxxxxxxxx>

diff -Nru a/arch/ppc/kernel/head_e500.S b/arch/ppc/kernel/head_e500.S
--- a/arch/ppc/kernel/head_e500.S	2004-08-02 13:24:48 -05:00
+++ b/arch/ppc/kernel/head_e500.S	2004-08-02 13:24:48 -05:00
@@ -1177,6 +1177,8 @@
 	evmwumiaa evr6, evr6, evr6	/* evr6 <- ACC = 0 * 0 + ACC */
 	li	r4,THREAD_ACC
    	evstddx	evr6, r4, r3		/* save off accumulator */
+	mfspr	r6,SPRN_SPEFSCR
+	stw	r6,THREAD_SPEFSCR(r3)	/* save spefscr register value */
 	beq	1f
 	lwz	r4,_MSR-STACK_FRAME_OVERHEAD(r5)
 	lis	r3,MSR_SPE@h

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