cregit-Linux how code gets into the kernel

Release 4.14 arch/powerpc/include/asm/asm-compat.h

#ifndef _ASM_POWERPC_ASM_COMPAT_H

#define _ASM_POWERPC_ASM_COMPAT_H

#include <asm/types.h>
#include <asm/ppc-opcode.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_STLU	stringify_in_c(stdu)

#define PPC_LCMPI	stringify_in_c(cmpdi)

#define PPC_LCMPLI	stringify_in_c(cmpldi)

#define PPC_LCMP	stringify_in_c(cmpd)

#define PPC_LONG	stringify_in_c(.8byte)

#define PPC_LONG_ALIGN	stringify_in_c(.balign 8)

#define PPC_TLNEI	stringify_in_c(tdnei)

#define PPC_LLARX(t, a, b, eh)	PPC_LDARX(t, a, b, eh)

#define PPC_STLCX	stringify_in_c(stdcx.)

#define PPC_CNTLZL	stringify_in_c(cntlzd)

#define PPC_MTOCRF(FXM, RS) MTOCRF((FXM), RS)

#define PPC_LR_STKOFF	16

#define PPC_MIN_STKFRM	112

#ifdef __BIG_ENDIAN__

#define LHZX_BE	stringify_in_c(lhzx)

#define LWZX_BE	stringify_in_c(lwzx)

#define LDX_BE	stringify_in_c(ldx)

#define STWX_BE	stringify_in_c(stwx)

#define STDX_BE	stringify_in_c(stdx)
#else

#define LHZX_BE	stringify_in_c(lhbrx)

#define LWZX_BE	stringify_in_c(lwbrx)

#define LDX_BE	stringify_in_c(ldbrx)

#define STWX_BE	stringify_in_c(stwbrx)

#define STDX_BE	stringify_in_c(stdbrx)
#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_STLU	stringify_in_c(stwu)

#define PPC_LCMPI	stringify_in_c(cmpwi)

#define PPC_LCMPLI	stringify_in_c(cmplwi)

#define PPC_LCMP	stringify_in_c(cmpw)

#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(t, a, b, eh)	PPC_LWARX(t, a, b, eh)

#define PPC_STLCX	stringify_in_c(stwcx.)

#define PPC_CNTLZL	stringify_in_c(cntlzw)

#define PPC_MTOCRF	stringify_in_c(mtcrf)

#define PPC_LR_STKOFF	4

#define PPC_MIN_STKFRM	16

#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 */

Overall Contributors

PersonTokensPropCommitsCommitProp
David Gibson16554.64%16.67%
Anton Blanchard5417.88%320.00%
Alexander Graf247.95%213.33%
Paul Mackerras165.30%213.33%
Denis Kirjanov165.30%16.67%
Naveen N. Rao82.65%16.67%
Michael Ellerman82.65%16.67%
Arnd Bergmann51.66%16.67%
Olof Johansson41.32%16.67%
Michael Neuling10.33%16.67%
Tobin C Harding10.33%16.67%
Total302100.00%15100.00%
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