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/* $Id: btfixup.h,v 1.4 1998/03/09 14:04:43 jj Exp $
* asm-sparc/btfixup.h: Macros for boot time linking.
*
* Copyright (C) 1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
*/
#ifndef _SPARC_BTFIXUP_H
#define _SPARC_BTFIXUP_H
#include <linux/init.h>
#ifndef __ASSEMBLY__
#ifdef MODULE
extern unsigned int ___illegal_use_of_BTFIXUP_SIMM13_in_module(void);
extern unsigned int ___illegal_use_of_BTFIXUP_SETHI_in_module(void);
extern unsigned int ___illegal_use_of_BTFIXUP_HALF_in_module(void);
extern unsigned int ___illegal_use_of_BTFIXUP_INT_in_module(void);
#endif
/* Fixup call xx */
#define BTFIXUPDEF_CALL(__type, __name, __args...) \
extern __type ___f_##__name(__args); \
extern unsigned ___fs_##__name[3];
#define BTFIXUPDEF_CALL_CONST(__type, __name, __args...) \
extern __type ___f_##__name(__args) __attribute__((const)); \
extern unsigned ___fs_##__name[3];
#define BTFIXUP_CALL(__name) ___f_##__name
#define BTFIXUPDEF_BLACKBOX(__name) \
extern unsigned ___bs_##__name[2];
#ifdef MODULE
#define BTFIXUP_BLACKBOX(__name) ___illegal_use_of_BTFIXUP_BLACKBOX_in_module
#else
/* This must be written in assembly and present in a sethi */
#define BTFIXUP_BLACKBOX(__name) ___b_##__name
#endif
/* Put bottom 13bits into some register variable */
#define BTFIXUPDEF_SIMM13(__name) \
extern unsigned int ___sf_##__name(void) __attribute__((const)); \
extern unsigned ___ss_##__name[2]; \
extern __inline__ unsigned int ___sf_##__name(void) { \
unsigned int ret; \
__asm__ ("or %%g0, ___s_" #__name ", %0" : "=r"(ret)); \
return ret; \
}
#define BTFIXUPDEF_SIMM13_INIT(__name,__val) \
extern unsigned int ___sf_##__name(void) __attribute__((const)); \
extern unsigned ___ss_##__name[2]; \
extern __inline__ unsigned int ___sf_##__name(void) { \
unsigned int ret; \
__asm__ ("or %%g0, ___s_" #__name "__btset_" #__val ", %0" : "=r"(ret));\
return ret; \
}
#ifdef MODULE
#define BTFIXUP_SIMM13(__name) ___illegal_use_of_BTFIXUP_SIMM13_in_module()
#else
#define BTFIXUP_SIMM13(__name) ___sf_##__name()
#endif
/* Put either bottom 13 bits, or upper 22 bits into some register variable
* (depending on the value, this will lead into sethi FIX, reg; or
* mov FIX, reg; )
*/
#define BTFIXUPDEF_HALF(__name) \
extern unsigned int ___af_##__name(void) __attribute__((const)); \
extern unsigned ___as_##__name[2]; \
extern __inline__ unsigned int ___af_##__name(void) { \
unsigned int ret; \
__asm__ ("or %%g0, ___a_" #__name ", %0" : "=r"(ret)); \
return ret; \
}
#define BTFIXUPDEF_HALF_INIT(__name,__val) \
extern unsigned int ___af_##__name(void) __attribute__((const)); \
extern unsigned ___as_##__name[2]; \
extern __inline__ unsigned int ___af_##__name(void) { \
unsigned int ret; \
__asm__ ("or %%g0, ___a_" #__name "__btset_" #__val ", %0" : "=r"(ret));\
return ret; \
}
#ifdef MODULE
#define BTFIXUP_HALF(__name) ___illegal_use_of_BTFIXUP_HALF_in_module()
#else
#define BTFIXUP_HALF(__name) ___af_##__name()
#endif
/* Put upper 22 bits into some register variable */
#define BTFIXUPDEF_SETHI(__name) \
extern unsigned int ___hf_##__name(void) __attribute__((const)); \
extern unsigned ___hs_##__name[2]; \
extern __inline__ unsigned int ___hf_##__name(void) { \
unsigned int ret; \
__asm__ ("sethi %%hi(___h_" #__name "), %0" : "=r"(ret)); \
return ret; \
}
#define BTFIXUPDEF_SETHI_INIT(__name,__val) \
extern unsigned int ___hf_##__name(void) __attribute__((const)); \
extern unsigned ___hs_##__name[2]; \
extern __inline__ unsigned int ___hf_##__name(void) { \
unsigned int ret; \
__asm__ ("sethi %%hi(___h_" #__name "__btset_" #__val "), %0" : \
"=r"(ret)); \
return ret; \
}
#ifdef MODULE
#define BTFIXUP_SETHI(__name) ___illegal_use_of_BTFIXUP_SETHI_in_module()
#else
#define BTFIXUP_SETHI(__name) ___hf_##__name()
#endif
/* Put a full 32bit integer into some register variable */
#define BTFIXUPDEF_INT(__name) \
extern unsigned char ___i_##__name; \
extern unsigned ___is_##__name[2];
#ifdef MODULE
#define BTFIXUP_INT(__name) ___illegal_use_of_BTFIXUP_INT_in_module()
#else
#define BTFIXUP_INT(__name) ((unsigned int)&___i_##__name)
#endif
#define BTFIXUPCALL_NORM 0x00000000 /* Always call */
#define BTFIXUPCALL_NOP 0x01000000 /* Possibly optimize to nop */
#define BTFIXUPCALL_RETINT(i) (0x90102000|((i) & 0x1fff)) /* Possibly optimize to mov i, %o0 */
#define BTFIXUPCALL_ORINT(i) (0x90122000|((i) & 0x1fff)) /* Possibly optimize to or %o0, i, %o0 */
#define BTFIXUPCALL_RETO0 0x01000000 /* Return first parameter, actually a nop */
#define BTFIXUPCALL_ANDNINT(i) (0x902a2000|((i) & 0x1fff)) /* Possibly optimize to andn %o0, i, %o0 */
#define BTFIXUPCALL_SWAPO0O1 0xd27a0000 /* Possibly optimize to swap [%o0],%o1 */
#define BTFIXUPCALL_SWAPO0G0 0xc07a0000 /* Possibly optimize to swap [%o0],%g0 */
#define BTFIXUPCALL_SWAPG1G2 0xc4784000 /* Possibly optimize to swap [%g1],%g2 */
#define BTFIXUPCALL_STG0O0 0xc0220000 /* Possibly optimize to st %g0,[%o0] */
#define BTFIXUPCALL_STO1O0 0xd2220000 /* Possibly optimize to st %o1,[%o0] */
#define BTFIXUPSET_CALL(__name, __addr, __insn) \
do { \
___fs_##__name[0] |= 1; \
___fs_##__name[1] = (unsigned long)__addr; \
___fs_##__name[2] = __insn; \
} while (0)
#define BTFIXUPSET_BLACKBOX(__name, __func) \
do { \
___bs_##__name[0] |= 1; \
___bs_##__name[1] = (unsigned long)__func; \
} while (0)
#define BTFIXUPCOPY_CALL(__name, __from) \
do { \
___fs_##__name[0] |= 1; \
___fs_##__name[1] = ___fs_##__from[1]; \
___fs_##__name[2] = ___fs_##__from[2]; \
} while (0)
#define BTFIXUPSET_SIMM13(__name, __val) \
do { \
___ss_##__name[0] |= 1; \
___ss_##__name[1] = (unsigned)__val; \
} while (0)
#define BTFIXUPCOPY_SIMM13(__name, __from) \
do { \
___ss_##__name[0] |= 1; \
___ss_##__name[1] = ___ss_##__from[1]; \
} while (0)
#define BTFIXUPSET_HALF(__name, __val) \
do { \
___as_##__name[0] |= 1; \
___as_##__name[1] = (unsigned)__val; \
} while (0)
#define BTFIXUPCOPY_HALF(__name, __from) \
do { \
___as_##__name[0] |= 1; \
___as_##__name[1] = ___as_##__from[1]; \
} while (0)
#define BTFIXUPSET_SETHI(__name, __val) \
do { \
___hs_##__name[0] |= 1; \
___hs_##__name[1] = (unsigned)__val; \
} while (0)
#define BTFIXUPCOPY_SETHI(__name, __from) \
do { \
___hs_##__name[0] |= 1; \
___hs_##__name[1] = ___hs_##__from[1]; \
} while (0)
#define BTFIXUPSET_INT(__name, __val) \
do { \
___is_##__name[0] |= 1; \
___is_##__name[1] = (unsigned)__val; \
} while (0)
#define BTFIXUPCOPY_INT(__name, __from) \
do { \
___is_##__name[0] |= 1; \
___is_##__name[1] = ___is_##__from[1]; \
} while (0)
#define BTFIXUPVAL_CALL(__name) \
((unsigned long)___fs_##__name[1])
extern void btfixup(void);
#else /* __ASSEMBLY__ */
#define BTFIXUP_SETHI(__name) %hi(___h_ ## __name)
#define BTFIXUP_SETHI_INIT(__name,__val) %hi(___h_ ## __name ## __btset_ ## __val)
#endif /* __ASSEMBLY__ */
#endif /* !(_SPARC_BTFIXUP_H) */
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