asm-compat.h 2.45 KB
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#ifndef _ASM_POWERPC_ASM_COMPAT_H
#define _ASM_POWERPC_ASM_COMPAT_H

#include <asm/types.h>
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#include <asm/ppc-opcode.h>
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#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

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#ifdef __powerpc64__

/* operations for longs and pointers */
#define PPC_LL		stringify_in_c(ld)
#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_LCMPLI	stringify_in_c(cmpldi)
#define PPC_LCMP	stringify_in_c(cmpd)
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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.)
#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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#ifdef __BIG_ENDIAN__
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#define LWZX_BE	stringify_in_c(lwzx)
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#define LDX_BE	stringify_in_c(ldx)
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#define STWX_BE	stringify_in_c(stwx)
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#define STDX_BE	stringify_in_c(stdx)
#else
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#define LWZX_BE	stringify_in_c(lwbrx)
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#define LDX_BE	stringify_in_c(ldbrx)
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#define STWX_BE	stringify_in_c(stwbrx)
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#define STDX_BE	stringify_in_c(stdbrx)
#endif

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#else /* 32-bit */

/* operations for longs and pointers */
#define PPC_LL		stringify_in_c(lwz)
#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_LCMPLI	stringify_in_c(cmplwi)
#define PPC_LCMP	stringify_in_c(cmpw)
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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.)
#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
/* 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
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#endif
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#endif /* _ASM_POWERPC_ASM_COMPAT_H */