mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-14 23:26:39 +07:00
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>
68 lines
2.0 KiB
C
68 lines
2.0 KiB
C
#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_LONG stringify_in_c(.llong)
|
|
#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
|
|
#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_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 */
|