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| author | David S. Miller <davem@sunset.davemloft.net> | 2006-03-05 18:26:24 -0800 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-03-20 01:14:18 -0800 |
| commit | 74ae998772041b62e9ad420d602e4f7dbb182cd6 (patch) | |
| tree | 8cbeb2ff56856d357647da6ab62562bac2fe87ad /arch/sparc64/kernel/tsb.S | |
| parent | 3cab0c3e8636d5005041aa52224f796c3a4ef872 (diff) | |
| download | linux-stable-74ae998772041b62e9ad420d602e4f7dbb182cd6.tar.gz linux-stable-74ae998772041b62e9ad420d602e4f7dbb182cd6.tar.bz2 linux-stable-74ae998772041b62e9ad420d602e4f7dbb182cd6.zip | |
[SPARC64]: Simplify TSB insert checks.
Don't try to avoid putting non-base page sized entries
into the user TSB. It actually costs us more to check
this than it helps.
Eventually we'll have a multiple TSB scheme for user
processes. Once a process starts using larger pages,
we'll allocate and use such a TSB.
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 | 14 |
1 files changed, 0 insertions, 14 deletions
diff --git a/arch/sparc64/kernel/tsb.S b/arch/sparc64/kernel/tsb.S index 563852bf3594..d738910153f6 100644 --- a/arch/sparc64/kernel/tsb.S +++ b/arch/sparc64/kernel/tsb.S @@ -55,20 +55,6 @@ tsb_reload: brgez,a,pn %g5, tsb_do_fault TSB_STORE(%g1, %g7) - /* If it is larger than the base page size, don't - * bother putting it into the TSB. - */ - sethi %hi(_PAGE_ALL_SZ_BITS), %g7 - ldx [%g7 + %lo(_PAGE_ALL_SZ_BITS)], %g7 - and %g5, %g7, %g2 - sethi %hi(_PAGE_SZBITS), %g7 - ldx [%g7 + %lo(_PAGE_SZBITS)], %g7 - cmp %g2, %g7 - mov 1, %g7 - sllx %g7, TSB_TAG_INVALID_BIT, %g7 - bne,a,pn %xcc, tsb_tlb_reload - TSB_STORE(%g1, %g7) - TSB_WRITE(%g1, %g5, %g6) /* Finally, load TLB and return from trap. */ |