diff options
author | David S. Miller <davem@sunset.davemloft.net> | 2007-05-27 23:24:47 -0400 |
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committer | David S. Miller <davem@sunset.davemloft.net> | 2007-05-29 05:50:15 -0400 |
commit | 679292993c77c06f7ade4e317c13256b92c2651b (patch) | |
tree | 9cff8cc7b9ad2f100e9fa1cda25de6c976c1c45e /arch/sparc64 | |
parent | b00ccd0f0b3fe8776aead63ec96313e84451b337 (diff) |
[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>
Diffstat (limited to 'arch/sparc64')
-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 @@ | |||
11 | /* ITLB ** ICACHE line 2: TSB compare and TLB load */ | 11 | /* ITLB ** ICACHE line 2: TSB compare and TLB load */ |
12 | bne,pn %xcc, tsb_miss_itlb ! Miss | 12 | bne,pn %xcc, tsb_miss_itlb ! Miss |
13 | mov FAULT_CODE_ITLB, %g3 | 13 | mov FAULT_CODE_ITLB, %g3 |
14 | andcc %g5, _PAGE_EXEC_4U, %g0 ! Executable? | 14 | sethi %hi(_PAGE_EXEC_4U), %g4 |
15 | andcc %g5, %g4, %g0 ! Executable? | ||
15 | be,pn %xcc, tsb_do_fault | 16 | be,pn %xcc, tsb_do_fault |
16 | nop ! Delay slot, fill me | 17 | nop ! Delay slot, fill me |
17 | stxa %g5, [%g0] ASI_ITLB_DATA_IN ! Load TLB | 18 | stxa %g5, [%g0] ASI_ITLB_DATA_IN ! Load TLB |
18 | retry ! Trap done | 19 | retry ! Trap done |
19 | nop | ||
20 | 20 | ||
21 | /* ITLB ** ICACHE line 3: */ | 21 | /* ITLB ** ICACHE line 3: */ |
22 | nop | 22 | nop |