diff options
| author | David S. Miller <davem@davemloft.net> | 2008-07-18 13:39:39 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-07-18 13:39:39 +0400 |
| commit | 49997d75152b3d23c53b0fa730599f2f74c92c65 (patch) | |
| tree | 46e93126170d02cfec9505172e545732c1b69656 /include/asm-mips/barrier.h | |
| parent | a0c80b80e0fb48129e4e9d6a9ede914f9ff1850d (diff) | |
| parent | 5b664cb235e97afbf34db9c4d77f08ebd725335e (diff) | |
| download | linux-49997d75152b3d23c53b0fa730599f2f74c92c65.tar.xz | |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
Documentation/powerpc/booting-without-of.txt
drivers/atm/Makefile
drivers/net/fs_enet/fs_enet-main.c
drivers/pci/pci-acpi.c
net/8021q/vlan.c
net/iucv/iucv.c
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 9d8cfbb5e796..8e9ac313ca3b 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 |