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#ifndef __ASM_POWERPC_FEATURE_FIXUPS_H
#define __ASM_POWERPC_FEATURE_FIXUPS_H
/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#ifdef __ASSEMBLY__
/*
* Feature section common macros
*
* Note that the entries now contain offsets between the table entry
* and the code rather than absolute code pointers in order to be
* useable with the vdso shared library. There is also an assumption
* that values will be negative, that is, the fixup table has to be
* located after the code it fixes up.
*/
#ifdef CONFIG_PPC64
#ifdef __powerpc64__
/* 64 bits kernel, 64 bits code */
#define MAKE_FTR_SECTION_ENTRY(msk, val, label, sect) \
99: \
.section sect,"a"; \
.align 3; \
98: \
.llong msk; \
.llong val; \
.llong label##b-98b; \
.llong 99b-98b; \
.previous
#else /* __powerpc64__ */
/* 64 bits kernel, 32 bits code (ie. vdso32) */
#define MAKE_FTR_SECTION_ENTRY(msk, val, label, sect) \
99: \
.section sect,"a"; \
.align 3; \
98: \
.llong msk; \
.llong val; \
.long 0xffffffff; \
.long label##b-98b; \
.long 0xffffffff; \
.long 99b-98b; \
.previous
#endif /* !__powerpc64__ */
#else /* CONFIG_PPC64 */
/* 32 bits kernel, 32 bits code */
#define MAKE_FTR_SECTION_ENTRY(msk, val, label, sect) \
99: \
.section sect,"a"; \
.align 2; \
98: \
.long msk; \
.long val; \
.long label##b-98b; \
.long 99b-98b; \
.previous
#endif /* !CONFIG_PPC64 */
/* CPU feature dependent sections */
#define BEGIN_FTR_SECTION_NESTED(label) label:
#define BEGIN_FTR_SECTION BEGIN_FTR_SECTION_NESTED(97)
#define END_FTR_SECTION_NESTED(msk, val, label) \
MAKE_FTR_SECTION_ENTRY(msk, val, label, __ftr_fixup)
#define END_FTR_SECTION(msk, val) \
END_FTR_SECTION_NESTED(msk, val, 97)
#define END_FTR_SECTION_IFSET(msk) END_FTR_SECTION((msk), (msk))
#define END_FTR_SECTION_IFCLR(msk) END_FTR_SECTION((msk), 0)
/* Firmware feature dependent sections */
#define BEGIN_FW_FTR_SECTION_NESTED(label) label:
#define BEGIN_FW_FTR_SECTION BEGIN_FW_FTR_SECTION_NESTED(97)
#define END_FW_FTR_SECTION_NESTED(msk, val, label) \
MAKE_FTR_SECTION_ENTRY(msk, val, label, __fw_ftr_fixup)
#define END_FW_FTR_SECTION(msk, val) \
END_FW_FTR_SECTION_NESTED(msk, val, 97)
#define END_FW_FTR_SECTION_IFSET(msk) END_FW_FTR_SECTION((msk), (msk))
#define END_FW_FTR_SECTION_IFCLR(msk) END_FW_FTR_SECTION((msk), 0)
#endif /* __ASSEMBLY__ */
#endif /* __ASM_POWERPC_FEATURE_FIXUPS_H */
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