#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 */