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| author | David S. Miller <davem@davemloft.net> | 2008-11-15 13:33:25 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-12-04 09:16:47 -0800 |
| commit | 293666b7a17cb7a389fc274980439212386a19c4 (patch) | |
| tree | 075cc7661d2113cf04da7130b3383979d8024206 /arch/sparc64/kernel/tsb.S | |
| parent | 64f2dde3f743c8a1ad8c0a1aa74166c1034afd92 (diff) | |
| download | op-kernel-dev-293666b7a17cb7a389fc274980439212386a19c4.zip op-kernel-dev-293666b7a17cb7a389fc274980439212386a19c4.tar.gz | |
sparc64: Stop using memory barriers for atomics and locks.
The kernel always executes in the TSO memory model now,
so none of this stuff is necessary any more.
With helpful feedback from Nick Piggin.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64/kernel/tsb.S')
| -rw-r--r-- | arch/sparc64/kernel/tsb.S | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/sparc64/kernel/tsb.S b/arch/sparc64/kernel/tsb.S index c499214..8c91d9b 100644 --- a/arch/sparc64/kernel/tsb.S +++ b/arch/sparc64/kernel/tsb.S @@ -317,7 +317,7 @@ tsb_flush: srlx %g1, 32, %o3 andcc %o3, %g2, %g0 bne,pn %icc, 1b - membar #LoadLoad + nop cmp %g1, %o1 mov 1, %o3 bne,pt %xcc, 2f @@ -327,7 +327,7 @@ tsb_flush: bne,pn %xcc, 1b nop 2: retl - TSB_MEMBAR + nop .size tsb_flush, .-tsb_flush /* Reload MMU related context switch state at @@ -478,7 +478,7 @@ copy_tsb: /* %o0=old_tsb_base, %o1=old_tsb_size nop retl - TSB_MEMBAR + nop .size copy_tsb, .-copy_tsb /* Set the invalid bit in all TSB entries. */ |
