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authorDavid S. Miller <davem@sunset.davemloft.net>2006-02-05 21:59:03 -0800
committerDavid S. Miller <davem@sunset.davemloft.net>2006-03-20 01:11:49 -0800
commit314981ac7177a933319e3c071a5cf0a579205e6e (patch)
tree11895da391ba91195d6d7a67debaa32a28c1215e /arch
parent936f482af1743141d637483ec10eb881537c26dc (diff)
[SPARC64]: Kill all %pstate changes in context switch code.
They are totally unnecessary because: 1) Interrupts are already disabled when switch_to() runs. 2) We don't use hard-coded alternate globals any longer. This found a case in rtrap, which still assumed alternate global %g6 was current_thread_info(), and that is fixed by this changeset as well. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch')
-rw-r--r--arch/sparc64/kernel/rtrap.S5
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/sparc64/kernel/rtrap.S b/arch/sparc64/kernel/rtrap.S
index e6130956307..a2fa277da62 100644
--- a/arch/sparc64/kernel/rtrap.S
+++ b/arch/sparc64/kernel/rtrap.S
@@ -224,7 +224,8 @@ rt_continue: ldx [%sp + PTREGS_OFF + PT_V9_G1], %g1
ldx [%sp + PTREGS_OFF + PT_V9_G4], %g4
ldx [%sp + PTREGS_OFF + PT_V9_G5], %g5
brz,pt %l3, 1f
- nop
+ mov %g6, %l2
+
/* Must do this before thread reg is clobbered below. */
LOAD_PER_CPU_BASE(%g5, %g6, %i0, %i1, %i2)
1:
@@ -238,6 +239,8 @@ rt_continue: ldx [%sp + PTREGS_OFF + PT_V9_G1], %g1
SET_GL(1)
.previous
+ mov %l2, %g6
+
ldx [%sp + PTREGS_OFF + PT_V9_I0], %i0
ldx [%sp + PTREGS_OFF + PT_V9_I1], %i1