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