6a2a24bb75
Add a #define for aligning to a long-sized boundary. It would be nice to use sizeof(long) for this, but that requires generating the value with asm-offsets.c, and asm-offsets.c includes asm-compat.h and we descend into some sort of recursive include hell. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
69 lines
1.9 KiB
C
69 lines
1.9 KiB
C
#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_LONG_ALIGN stringify_in_c(.balign 8)
|
|
#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_LONG_ALIGN stringify_in_c(.balign 4)
|
|
#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 */
|