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[SPARC64]: Do not touch %tick_cmpr on sun4v cpus.

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This register is not a part of the sun4v architecture.

Niagara 1 and 2 happened to leave it around.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2007-08-16 01:52:44 -07:00
parent cf5adce117
commit 53140b71c5
1 changed files with 2 additions and 1 deletions
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3
arch/sparc64/kernel/head.S
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@ -715,12 +715,13 @@ setup_trap_table:
membar #Sync membar #Sync
BRANCH_IF_SUN4V(o2, 1f)
/* Kill PROM timer */ /* Kill PROM timer */
sethi %hi(0x80000000), %o2 sethi %hi(0x80000000), %o2
sllx %o2, 32, %o2 sllx %o2, 32, %o2
wr %o2, 0, %tick_cmpr wr %o2, 0, %tick_cmpr
BRANCH_IF_SUN4V(o2, 1f)
BRANCH_IF_ANY_CHEETAH(o2, o3, 1f) BRANCH_IF_ANY_CHEETAH(o2, o3, 1f)
ba,pt %xcc, 2f ba,pt %xcc, 2f