[mirror_ubuntu-artful-kernel.git] / include / asm-powerpc / asm-compat.h

#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

#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)

#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)

#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 */
Commit	Line	Data
3ddfbcf1 DG	1	#ifndef _ASM_POWERPC_ASM_COMPAT_H
	2	#define _ASM_POWERPC_ASM_COMPAT_H
	3
3ddfbcf1 DG	4	#include <asm/types.h>
	5
	6	#ifdef __ASSEMBLY__
	7	# define stringify_in_c(...) __VA_ARGS__
	8	# define ASM_CONST(x) x
	9	#else
	10	/* This version of stringify will deal with commas... */
	11	# define __stringify_in_c(...) #__VA_ARGS__
	12	# define stringify_in_c(...) __stringify_in_c(__VA_ARGS__) " "
	13	# define __ASM_CONST(x) x##UL
	14	# define ASM_CONST(x) __ASM_CONST(x)
	15	#endif
	16
	17	#ifdef __powerpc64__
	18
	19	/* operations for longs and pointers */
	20	#define PPC_LL stringify_in_c(ld)
	21	#define PPC_STL stringify_in_c(std)
	22	#define PPC_LCMPI stringify_in_c(cmpdi)
	23	#define PPC_LONG stringify_in_c(.llong)
	24	#define PPC_TLNEI stringify_in_c(tdnei)
	25	#define PPC_LLARX stringify_in_c(ldarx)
	26	#define PPC_STLCX stringify_in_c(stdcx.)
	27	#define PPC_CNTLZL stringify_in_c(cntlzd)
	28
	29	#else /* 32-bit */
	30
	31	/* operations for longs and pointers */
	32	#define PPC_LL stringify_in_c(lwz)
	33	#define PPC_STL stringify_in_c(stw)
	34	#define PPC_LCMPI stringify_in_c(cmpwi)
	35	#define PPC_LONG stringify_in_c(.long)
	36	#define PPC_TLNEI stringify_in_c(twnei)
	37	#define PPC_LLARX stringify_in_c(lwarx)
	38	#define PPC_STLCX stringify_in_c(stwcx.)
	39	#define PPC_CNTLZL stringify_in_c(cntlzw)
	40
	41	#endif
	42
88ced031	43	#ifdef __KERNEL__
3ddfbcf1 DG	44	#ifdef CONFIG_IBM405_ERR77
	45	/* Erratum #77 on the 405 means we need a sync or dcbt before every
	46	* stwcx. The old ATOMIC_SYNC_FIX covered some but not all of this.
	47	*/
	48	#define PPC405_ERR77(ra,rb) stringify_in_c(dcbt ra, rb;)
	49	#define PPC405_ERR77_SYNC stringify_in_c(sync;)
	50	#else
	51	#define PPC405_ERR77(ra,rb)
	52	#define PPC405_ERR77_SYNC
	53	#endif
88ced031	54	#endif
3ddfbcf1 DG	55
3ddfbcf1 DG	56	#endif /* _ASM_POWERPC_ASM_COMPAT_H */