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| author | Ingo Molnar <mingo@elte.hu> | 2008-07-18 21:13:20 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-18 21:13:20 +0200 |
| commit | f6dc8ccaab6d8f63cbae1e6c73fe972b26f5376c (patch) | |
| tree | c5643fcdc884a8d0bfc3f1bc28039cab7394e5bc /include/asm-mips/barrier.h | |
| parent | 323ec001c6bb98eeabb5abbdbb8c8055d9496554 (diff) | |
| parent | 5b664cb235e97afbf34db9c4d77f08ebd725335e (diff) | |
| download | op-kernel-dev-f6dc8ccaab6d8f63cbae1e6c73fe972b26f5376c.zip op-kernel-dev-f6dc8ccaab6d8f63cbae1e6c73fe972b26f5376c.tar.gz | |
Merge branch 'linus' into core/generic-dma-coherent
Conflicts:
kernel/Makefile
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-mips/barrier.h')
| -rw-r--r-- | include/asm-mips/barrier.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/asm-mips/barrier.h b/include/asm-mips/barrier.h index 9d8cfbb..8e9ac31 100644 --- a/include/asm-mips/barrier.h +++ b/include/asm-mips/barrier.h @@ -92,11 +92,25 @@ #define fast_wmb() __sync() #define fast_rmb() __sync() #define fast_mb() __sync() +#ifdef CONFIG_SGI_IP28 +#define fast_iob() \ + __asm__ __volatile__( \ + ".set push\n\t" \ + ".set noreorder\n\t" \ + "lw $0,%0\n\t" \ + "sync\n\t" \ + "lw $0,%0\n\t" \ + ".set pop" \ + : /* no output */ \ + : "m" (*(int *)CKSEG1ADDR(0x1fa00004)) \ + : "memory") +#else #define fast_iob() \ do { \ __sync(); \ __fast_iob(); \ } while (0) +#endif #ifdef CONFIG_CPU_HAS_WB |
