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| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2018-07-05 16:24:55 +0000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-07-30 22:48:13 +1000 |
| commit | 36a7eeaff7d06cef253c8df6dfe363bfc4a553f8 (patch) | |
| tree | 615de7235f2e4db04860bd3fed530d81a6ef3c5a /arch/powerpc/include/asm/asm-405.h | |
| parent | 8c58259bba43084eb5876aeefa574e9344b85ae3 (diff) | |
| download | lwn-36a7eeaff7d06cef253c8df6dfe363bfc4a553f8.tar.gz lwn-36a7eeaff7d06cef253c8df6dfe363bfc4a553f8.zip | |
powerpc/405: move PPC405_ERR77 in asm-405.h
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/asm-405.h')
| -rw-r--r-- | arch/powerpc/include/asm/asm-405.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/asm-405.h b/arch/powerpc/include/asm/asm-405.h new file mode 100644 index 000000000000..7270d3ae7c8e --- /dev/null +++ b/arch/powerpc/include/asm/asm-405.h @@ -0,0 +1,19 @@ +#ifndef _ASM_POWERPC_ASM_405_H +#define _ASM_POWERPC_ASM_405_H + +#include <asm/asm-const.h> + +#ifdef __KERNEL__ +#ifdef CONFIG_IBM405_ERR77 +/* Erratum #77 on the 405 means we need a sync or dcbt before every + * stwcx. The old ATOMIC_SYNC_FIX covered some but not all of this. + */ +#define PPC405_ERR77(ra,rb) stringify_in_c(dcbt ra, rb;) +#define PPC405_ERR77_SYNC stringify_in_c(sync;) +#else +#define PPC405_ERR77(ra,rb) +#define PPC405_ERR77_SYNC +#endif +#endif + +#endif /* _ASM_POWERPC_ASM_405_H */ |