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| author | David S. Miller <davem@davemloft.net> | 2006-01-31 18:32:44 -0800 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-03-20 01:11:21 -0800 |
| commit | 4753eb2ac7022b999e5e484f1a5dc001dba22bd3 (patch) | |
| tree | 138321ebd3b3c3aeb99517ec5158a65f556da774 /include/asm-sparc64/tsb.h | |
| parent | 96c6e0d8e2a0eb1338751598be47fa1ffed91704 (diff) | |
| download | lwn-4753eb2ac7022b999e5e484f1a5dc001dba22bd3.tar.gz lwn-4753eb2ac7022b999e5e484f1a5dc001dba22bd3.zip | |
[SPARC64]: Fix incorrect TSB lock bit handling.
The TSB_LOCK_BIT define is actually a special
value shifted down by 32-bits for the assembler
code macros.
In C code, this isn't what we want.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/asm-sparc64/tsb.h')
| -rw-r--r-- | include/asm-sparc64/tsb.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/include/asm-sparc64/tsb.h b/include/asm-sparc64/tsb.h index 1f93b7d8cdbc..09ab3aaa8d20 100644 --- a/include/asm-sparc64/tsb.h +++ b/include/asm-sparc64/tsb.h @@ -47,13 +47,14 @@ * possible solution is to use RCU for the freeing of the TSB. */ -#define TSB_TAG_LOCK (1 << (47 - 32)) +#define TSB_TAG_LOCK_BIT 47 +#define TSB_TAG_LOCK_HIGH (1 << (TSB_TAG_LOCK_BIT - 32)) #define TSB_MEMBAR membar #StoreStore #define TSB_LOCK_TAG(TSB, REG1, REG2) \ 99: lduwa [TSB] ASI_N, REG1; \ - sethi %hi(TSB_TAG_LOCK), REG2;\ + sethi %hi(TSB_TAG_LOCK_HIGH), REG2;\ andcc REG1, REG2, %g0; \ bne,pn %icc, 99b; \ nop; \ |