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

https://github.com/aicjofs/android_kernel_lge_v500_20d
C Header | 76 lines | 56 code | 11 blank | 9 comment | 0 complexity | 9e520283c9fc99b320dcd23025b3c0d6 MD5 | raw file
 1#ifndef _ASM_POWERPC_ASM_COMPAT_H
 2#define _ASM_POWERPC_ASM_COMPAT_H
 3
 4#include <asm/types.h>
 5#include <asm/ppc-opcode.h>
 6
 7#ifdef __ASSEMBLY__
 8#  define stringify_in_c(...)	__VA_ARGS__
 9#  define ASM_CONST(x)		x
10#else
11/* This version of stringify will deal with commas... */
12#  define __stringify_in_c(...)	#__VA_ARGS__
13#  define stringify_in_c(...)	__stringify_in_c(__VA_ARGS__) " "
14#  define __ASM_CONST(x)	x##UL
15#  define ASM_CONST(x)		__ASM_CONST(x)
16#endif
17
18
19#ifdef __powerpc64__
20
21/* operations for longs and pointers */
22#define PPC_LL		stringify_in_c(ld)
23#define PPC_STL		stringify_in_c(std)
24#define PPC_STLU	stringify_in_c(stdu)
25#define PPC_LCMPI	stringify_in_c(cmpdi)
26#define PPC_LONG	stringify_in_c(.llong)
27#define PPC_LONG_ALIGN	stringify_in_c(.balign 8)
28#define PPC_TLNEI	stringify_in_c(tdnei)
29#define PPC_LLARX(t, a, b, eh)	PPC_LDARX(t, a, b, eh)
30#define PPC_STLCX	stringify_in_c(stdcx.)
31#define PPC_CNTLZL	stringify_in_c(cntlzd)
32#define PPC_LR_STKOFF	16
33#define PPC_MIN_STKFRM	112
34
35/* Move to CR, single-entry optimized version. Only available
36 * on POWER4 and later.
37 */
38#ifdef CONFIG_POWER4_ONLY
39#define PPC_MTOCRF	stringify_in_c(mtocrf)
40#else
41#define PPC_MTOCRF	stringify_in_c(mtcrf)
42#endif
43
44#else /* 32-bit */
45
46/* operations for longs and pointers */
47#define PPC_LL		stringify_in_c(lwz)
48#define PPC_STL		stringify_in_c(stw)
49#define PPC_STLU	stringify_in_c(stwu)
50#define PPC_LCMPI	stringify_in_c(cmpwi)
51#define PPC_LONG	stringify_in_c(.long)
52#define PPC_LONG_ALIGN	stringify_in_c(.balign 4)
53#define PPC_TLNEI	stringify_in_c(twnei)
54#define PPC_LLARX(t, a, b, eh)	PPC_LWARX(t, a, b, eh)
55#define PPC_STLCX	stringify_in_c(stwcx.)
56#define PPC_CNTLZL	stringify_in_c(cntlzw)
57#define PPC_MTOCRF	stringify_in_c(mtcrf)
58#define PPC_LR_STKOFF	4
59#define PPC_MIN_STKFRM	16
60
61#endif
62
63#ifdef __KERNEL__
64#ifdef CONFIG_IBM405_ERR77
65/* Erratum #77 on the 405 means we need a sync or dcbt before every
66 * stwcx.  The old ATOMIC_SYNC_FIX covered some but not all of this.
67 */
68#define PPC405_ERR77(ra,rb)	stringify_in_c(dcbt	ra, rb;)
69#define	PPC405_ERR77_SYNC	stringify_in_c(sync;)
70#else
71#define PPC405_ERR77(ra,rb)
72#define PPC405_ERR77_SYNC
73#endif
74#endif
75
76#endif /* _ASM_POWERPC_ASM_COMPAT_H */