Commit c9c17aa9 authored by Kumar Gala's avatar Kumar Gala Committed by Linus Torvalds

[PATCH] ppc32: fix e500 SPE saving of context

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: default avatarKumar Gala <kumar.gala@freescale.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent a5cd4546
...@@ -1177,6 +1177,8 @@ _GLOBAL(giveup_spe) ...@@ -1177,6 +1177,8 @@ _GLOBAL(giveup_spe)
evmwumiaa evr6, evr6, evr6 /* evr6 <- ACC = 0 * 0 + ACC */ evmwumiaa evr6, evr6, evr6 /* evr6 <- ACC = 0 * 0 + ACC */
li r4,THREAD_ACC li r4,THREAD_ACC
evstddx evr6, r4, r3 /* save off accumulator */ evstddx evr6, r4, r3 /* save off accumulator */
mfspr r6,SPRN_SPEFSCR
stw r6,THREAD_SPEFSCR(r3) /* save spefscr register value */
beq 1f beq 1f
lwz r4,_MSR-STACK_FRAME_OVERHEAD(r5) lwz r4,_MSR-STACK_FRAME_OVERHEAD(r5)
lis r3,MSR_SPE@h lis r3,MSR_SPE@h
......
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