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- #ifndef _ASM_POWERPC_ASM_COMPAT_H
- #define _ASM_POWERPC_ASM_COMPAT_H
- #include <asm/types.h>
- #ifdef __ASSEMBLY__
- # define stringify_in_c(...) __VA_ARGS__
- # define ASM_CONST(x) x
- #else
- /* This version of stringify will deal with commas... */
- # define __stringify_in_c(...) #__VA_ARGS__
- # define stringify_in_c(...) __stringify_in_c(__VA_ARGS__) " "
- # define __ASM_CONST(x) x##UL
- # define ASM_CONST(x) __ASM_CONST(x)
- #endif
- /*
- * Feature section common macros
- *
- * Note that the entries now contain offsets between the table entry
- * and the code rather than absolute code pointers in order to be
- * useable with the vdso shared library. There is also an assumption
- * that values will be negative, that is, the fixup table has to be
- * located after the code it fixes up.
- */
- #ifdef CONFIG_PPC64
- #ifdef __powerpc64__
- /* 64 bits kernel, 64 bits code */
- #define MAKE_FTR_SECTION_ENTRY(msk, val, label, sect) \
- 99: \
- .section sect,"a"; \
- .align 3; \
- 98: \
- .llong msk; \
- .llong val; \
- .llong label##b-98b; \
- .llong 99b-98b; \
- .previous
- #else /* __powerpc64__ */
- /* 64 bits kernel, 32 bits code (ie. vdso32) */
- #define MAKE_FTR_SECTION_ENTRY(msk, val, label, sect) \
- 99: \
- .section sect,"a"; \
- .align 3; \
- 98: \
- .llong msk; \
- .llong val; \
- .long 0xffffffff; \
- .long label##b-98b; \
- .long 0xffffffff; \
- .long 99b-98b; \
- .previous
- #endif /* !__powerpc64__ */
- #else /* CONFIG_PPC64 */
- /* 32 bits kernel, 32 bits code */
- #define MAKE_FTR_SECTION_ENTRY(msk, val, label, sect) \
- 99: \
- .section sect,"a"; \
- .align 2; \
- 98: \
- .long msk; \
- .long val; \
- .long label##b-98b; \
- .long 99b-98b; \
- .previous
- #endif /* !CONFIG_PPC64 */
- #ifdef __powerpc64__
- /* operations for longs and pointers */
- #define PPC_LL stringify_in_c(ld)
- #define PPC_STL stringify_in_c(std)
- #define PPC_LCMPI stringify_in_c(cmpdi)
- #define PPC_LONG stringify_in_c(.llong)
- #define PPC_TLNEI stringify_in_c(tdnei)
- #define PPC_LLARX stringify_in_c(ldarx)
- #define PPC_STLCX stringify_in_c(stdcx.)
- #define PPC_CNTLZL stringify_in_c(cntlzd)
- /* Move to CR, single-entry optimized version. Only available
- * on POWER4 and later.
- */
- #ifdef CONFIG_POWER4_ONLY
- #define PPC_MTOCRF stringify_in_c(mtocrf)
- #else
- #define PPC_MTOCRF stringify_in_c(mtcrf)
- #endif
- #else /* 32-bit */
- /* operations for longs and pointers */
- #define PPC_LL stringify_in_c(lwz)
- #define PPC_STL stringify_in_c(stw)
- #define PPC_LCMPI stringify_in_c(cmpwi)
- #define PPC_LONG stringify_in_c(.long)
- #define PPC_TLNEI stringify_in_c(twnei)
- #define PPC_LLARX stringify_in_c(lwarx)
- #define PPC_STLCX stringify_in_c(stwcx.)
- #define PPC_CNTLZL stringify_in_c(cntlzw)
- #define PPC_MTOCRF stringify_in_c(mtcrf)
- #endif
- #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_COMPAT_H */
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