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| author | David S. Miller <davem@sunset.davemloft.net> | 2007-05-27 20:24:47 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-05-29 02:50:15 -0700 |
| commit | 679292993c77c06f7ade4e317c13256b92c2651b (patch) | |
| tree | 9cff8cc7b9ad2f100e9fa1cda25de6c976c1c45e | |
| parent | b00ccd0f0b3fe8776aead63ec96313e84451b337 (diff) | |
| download | blackbird-op-linux-679292993c77c06f7ade4e317c13256b92c2651b.tar.gz blackbird-op-linux-679292993c77c06f7ade4e317c13256b92c2651b.zip | |
[SPARC64]: Fix _PAGE_EXEC_4U check in sun4u I-TLB miss handler.
It was using an immediate _PAGE_EXEC_4U value in an 'and'
instruction to perform the test. This doesn't work because
the immediate field is signed 13-bit, this the mask being
tested against the PTE was 0x1000 sign-extended to 32-bits
instead of just plain 0x1000.
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | arch/sparc64/kernel/itlb_miss.S | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/sparc64/kernel/itlb_miss.S b/arch/sparc64/kernel/itlb_miss.S index ad46e2024f4b..5a8377b54955 100644 --- a/arch/sparc64/kernel/itlb_miss.S +++ b/arch/sparc64/kernel/itlb_miss.S @@ -11,12 +11,12 @@ /* ITLB ** ICACHE line 2: TSB compare and TLB load */ bne,pn %xcc, tsb_miss_itlb ! Miss mov FAULT_CODE_ITLB, %g3 - andcc %g5, _PAGE_EXEC_4U, %g0 ! Executable? + sethi %hi(_PAGE_EXEC_4U), %g4 + andcc %g5, %g4, %g0 ! Executable? be,pn %xcc, tsb_do_fault nop ! Delay slot, fill me stxa %g5, [%g0] ASI_ITLB_DATA_IN ! Load TLB retry ! Trap done - nop /* ITLB ** ICACHE line 3: */ nop |
