diff options
| author | David S. Miller <davem@sunset.davemloft.net> | 2006-02-05 21:59:03 -0800 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-03-20 01:11:49 -0800 |
| commit | 314981ac7177a933319e3c071a5cf0a579205e6e (patch) | |
| tree | 11895da391ba91195d6d7a67debaa32a28c1215e /arch | |
| parent | 936f482af1743141d637483ec10eb881537c26dc (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.S | 5 |
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 |