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[SPARC64]: Use sparc64_highest_unlocked_tlb_ent in __tsb_context_switch()

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Instead of ugly hard-coded value.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2006-01-31 18:33:12 -08:00 committed by David S. Miller
parent 4da808c352
commit 6b6d017235
1 changed files with 8 additions and 6 deletions
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14
arch/sparc64/kernel/tsb.S
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@ -185,12 +185,14 @@ __tsb_context_switch:
*
* XXX Interactions with prom_world()...
*/
mov TLB_TAG_ACCESS, %g1
stxa %o2, [%g1] ASI_DMMU
membar #Sync
mov (61 << 3), %g1
stxa %o3, [%g1] ASI_DTLB_DATA_ACCESS
membar #Sync
sethi %hi(sparc64_highest_unlocked_tlb_ent), %o4
mov TLB_TAG_ACCESS, %g1
lduw [%o4 + %lo(sparc64_highest_unlocked_tlb_ent)], %g2
stxa %o2, [%g1] ASI_DMMU
membar #Sync
sllx %g2, 3, %g2
stxa %o3, [%g2] ASI_DTLB_DATA_ACCESS
membar #Sync
9:
wrpr %o5, %pstate