diff options
Diffstat (limited to 'arch/sparc/include/asm/btfixup.h')
| -rw-r--r-- | arch/sparc/include/asm/btfixup.h | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/btfixup.h b/arch/sparc/include/asm/btfixup.h new file mode 100644 index 0000000..797722c --- /dev/null +++ b/arch/sparc/include/asm/btfixup.h @@ -0,0 +1,208 @@ +/* + * asm/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) */ |