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| author | Jeff Garzik <jgarzik@pobox.com> | 2006-01-26 22:33:43 -0500 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2006-01-26 22:33:43 -0500 |
| commit | 71e834f563799e09c6bd7d6638993b464fac26f5 (patch) | |
| tree | 3a35643ddc54e7217ec000eb415cc79a65cdcac1 /include/asm-i386/edac.h | |
| parent | ff0fc1467f8189c8e2340b91161c97138a75e484 (diff) | |
| parent | 3ee68c4af3fd7228c1be63254b9f884614f9ebb2 (diff) | |
| download | talos-op-linux-71e834f563799e09c6bd7d6638993b464fac26f5.tar.gz talos-op-linux-71e834f563799e09c6bd7d6638993b464fac26f5.zip | |
Merge branch 'master'
Diffstat (limited to 'include/asm-i386/edac.h')
| -rw-r--r-- | include/asm-i386/edac.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/asm-i386/edac.h b/include/asm-i386/edac.h new file mode 100644 index 000000000000..3e7dd0ab68ce --- /dev/null +++ b/include/asm-i386/edac.h @@ -0,0 +1,18 @@ +#ifndef ASM_EDAC_H +#define ASM_EDAC_H + +/* ECC atomic, DMA, SMP and interrupt safe scrub function */ + +static __inline__ void atomic_scrub(void *va, u32 size) +{ + unsigned long *virt_addr = va; + u32 i; + + for (i = 0; i < size / 4; i++, virt_addr++) + /* Very carefully read and write to memory atomically + * so we are interrupt, DMA and SMP safe. + */ + __asm__ __volatile__("lock; addl $0, %0"::"m"(*virt_addr)); +} + +#endif |
