/* $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); #define BTFIXUP_SIMM13(__name) ___illegal_use_of_BTFIXUP_SIMM13_in_module() #define BTFIXUP_HALF(__name) ___illegal_use_of_BTFIXUP_HALF_in_module() #define BTFIXUP_SETHI(__name) ___illegal_use_of_BTFIXUP_SETHI_in_module() #define BTFIXUP_INT(__name) ___illegal_use_of_BTFIXUP_INT_in_module() #define BTFIXUP_BLACKBOX(__name) ___illegal_use_of_BTFIXUP_BLACKBOX_in_module #else #define BTFIXUP_SIMM13(__name) ___sf_##__name() #define BTFIXUP_HALF(__name) ___af_##__name() #define BTFIXUP_SETHI(__name) ___hf_##__name() #define BTFIXUP_INT(__name) ((unsigned int)&___i_##__name) /* This must be written in assembly and present in a sethi */ #define BTFIXUP_BLACKBOX(__name) ___b_##__name #endif /* MODULE */ /* 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]; /* Put bottom 13bits into some register variable */ #define BTFIXUPDEF_SIMM13(__name) \ static inline unsigned int ___sf_##__name(void) __attribute_const__; \ extern unsigned ___ss_##__name[2]; \ static 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) \ static inline unsigned int ___sf_##__name(void) __attribute_const__; \ extern unsigned ___ss_##__name[2]; \ static inline unsigned int ___sf_##__name(void) { \ unsigned int ret; \ __asm__ ("or %%g0, ___s_" #__name "__btset_" #__val ", %0" : "=r"(ret));\ return ret; \ } /* 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) \ static inline unsigned int ___af_##__name(void) __attribute_const__; \ extern unsigned ___as_##__name[2]; \ static 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) \ static inline unsigned int ___af_##__name(void) __attribute_const__; \ extern unsigned ___as_##__name[2]; \ static inline unsigned int ___af_##__name(void) { \ unsigned int ret; \ __asm__ ("or %%g0, ___a_" #__name "__btset_" #__val ", %0" : "=r"(ret));\ return ret; \ } /* Put upper 22 bits into some register variable */ #define BTFIXUPDEF_SETHI(__name) \ static inline unsigned int ___hf_##__name(void) __attribute_const__; \ extern unsigned ___hs_##__name[2]; \ static 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) \ static inline unsigned int ___hf_##__name(void) __attribute_const__; \ extern unsigned ___hs_##__name[2]; \ static inline unsigned int ___hf_##__name(void) { \ unsigned int ret; \ __asm__ ("sethi %%hi(___h_" #__name "__btset_" #__val "), %0" : \ "=r"(ret)); \ return ret; \ } /* Put a full 32bit integer into some register variable */ #define BTFIXUPDEF_INT(__name) \ extern unsigned char ___i_##__name; \ extern unsigned ___is_##__name[2]; #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) */