694caf0255
Remove CONFIG_POWER4_ONLY, the option is badly named and only does two things: - It wraps the MMU segment table code. With feature fixups there is little downside to compiling this in. - It uses the newer mtocrf instruction in various assembly functions. Instead of making this a compile option just do it at runtime via a feature fixup. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
67 lines
2 KiB
C
67 lines
2 KiB
C
#ifndef _ASM_POWERPC_ASM_COMPAT_H
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#define _ASM_POWERPC_ASM_COMPAT_H
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#include <asm/types.h>
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#include <asm/ppc-opcode.h>
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#ifdef __ASSEMBLY__
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# define stringify_in_c(...) __VA_ARGS__
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# define ASM_CONST(x) x
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#else
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/* This version of stringify will deal with commas... */
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# define __stringify_in_c(...) #__VA_ARGS__
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# define stringify_in_c(...) __stringify_in_c(__VA_ARGS__) " "
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# define __ASM_CONST(x) x##UL
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# define ASM_CONST(x) __ASM_CONST(x)
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#endif
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#ifdef __powerpc64__
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/* operations for longs and pointers */
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#define PPC_LL stringify_in_c(ld)
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#define PPC_STL stringify_in_c(std)
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#define PPC_STLU stringify_in_c(stdu)
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#define PPC_LCMPI stringify_in_c(cmpdi)
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#define PPC_LONG stringify_in_c(.llong)
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#define PPC_LONG_ALIGN stringify_in_c(.balign 8)
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#define PPC_TLNEI stringify_in_c(tdnei)
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#define PPC_LLARX(t, a, b, eh) PPC_LDARX(t, a, b, eh)
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#define PPC_STLCX stringify_in_c(stdcx.)
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#define PPC_CNTLZL stringify_in_c(cntlzd)
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#define PPC_MTOCRF(FXM, RS) MTOCRF((FXM), (RS))
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#define PPC_LR_STKOFF 16
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#define PPC_MIN_STKFRM 112
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#else /* 32-bit */
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/* operations for longs and pointers */
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#define PPC_LL stringify_in_c(lwz)
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#define PPC_STL stringify_in_c(stw)
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#define PPC_STLU stringify_in_c(stwu)
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#define PPC_LCMPI stringify_in_c(cmpwi)
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#define PPC_LONG stringify_in_c(.long)
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#define PPC_LONG_ALIGN stringify_in_c(.balign 4)
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#define PPC_TLNEI stringify_in_c(twnei)
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#define PPC_LLARX(t, a, b, eh) PPC_LWARX(t, a, b, eh)
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#define PPC_STLCX stringify_in_c(stwcx.)
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#define PPC_CNTLZL stringify_in_c(cntlzw)
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#define PPC_MTOCRF stringify_in_c(mtcrf)
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#define PPC_LR_STKOFF 4
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#define PPC_MIN_STKFRM 16
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#endif
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#ifdef __KERNEL__
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#ifdef CONFIG_IBM405_ERR77
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/* Erratum #77 on the 405 means we need a sync or dcbt before every
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* stwcx. The old ATOMIC_SYNC_FIX covered some but not all of this.
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*/
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#define PPC405_ERR77(ra,rb) stringify_in_c(dcbt ra, rb;)
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#define PPC405_ERR77_SYNC stringify_in_c(sync;)
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#else
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#define PPC405_ERR77(ra,rb)
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#define PPC405_ERR77_SYNC
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#endif
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#endif
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#endif /* _ASM_POWERPC_ASM_COMPAT_H */
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