diff options
| author | Ingo Molnar <mingo@elte.hu> | 2008-07-25 11:37:07 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-25 11:37:07 +0200 |
| commit | 0e2f65ee30eee2db054f7fd73f462c5da33ec963 (patch) | |
| tree | 26c61eb7745da0c0d9135e9d12088f570cb8530d /include/asm-mips/barrier.h | |
| parent | da7878d75b8520c9ae00d27dfbbce546a7bfdfbb (diff) | |
| parent | fb2e405fc1fc8b20d9c78eaa1c7fd5a297efde43 (diff) | |
Merge branch 'linus' into x86/pebs
Conflicts:
arch/x86/Kconfig.cpu
arch/x86/kernel/cpu/intel.c
arch/x86/kernel/setup_64.c
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 9d8cfbb5e79..8e9ac313ca3 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 |