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							- /*
 
-  * This file is subject to the terms and conditions of the GNU General Public
 
-  * License.  See the file "COPYING" in the main directory of this archive
 
-  * for more details.
 
-  *
 
-  * Copyright (C) 1995, 1996, 1997, 1999, 2001 by Ralf Baechle
 
-  * Copyright (C) 1999 by Silicon Graphics, Inc.
 
-  * Copyright (C) 2001 MIPS Technologies, Inc.
 
-  * Copyright (C) 2002  Maciej W. Rozycki
 
-  *
 
-  * Some useful macros for MIPS assembler code
 
-  *
 
-  * Some of the routines below contain useless nops that will be optimized
 
-  * away by gas in -O mode. These nops are however required to fill delay
 
-  * slots in noreorder mode.
 
-  */
 
- #ifndef __ASM_ASM_H
 
- #define __ASM_ASM_H
 
- #include <asm/sgidefs.h>
 
- #ifndef CAT
 
- #ifdef __STDC__
 
- #define __CAT(str1, str2) str1##str2
 
- #else
 
- #define __CAT(str1, str2) str1/**/str2
 
- #endif
 
- #define CAT(str1, str2) __CAT(str1, str2)
 
- #endif
 
- /*
 
-  * PIC specific declarations
 
-  * Not used for the kernel but here seems to be the right place.
 
-  */
 
- #ifdef __PIC__
 
- #define CPRESTORE(register)                             \
 
- 		.cprestore register
 
- #define CPADD(register)                                 \
 
- 		.cpadd	register
 
- #define CPLOAD(register)                                \
 
- 		.cpload	register
 
- #else
 
- #define CPRESTORE(register)
 
- #define CPADD(register)
 
- #define CPLOAD(register)
 
- #endif
 
- /*
 
-  * LEAF - declare leaf routine
 
-  */
 
- #define	LEAF(symbol)                                    \
 
- 		.globl	symbol;                         \
 
- 		.align	2;                              \
 
- 		.type	symbol, @function;              \
 
- 		.ent	symbol, 0;                      \
 
- symbol:		.frame	sp, 0, ra
 
- /*
 
-  * NESTED - declare nested routine entry point
 
-  */
 
- #define	NESTED(symbol, framesize, rpc)                  \
 
- 		.globl	symbol;                         \
 
- 		.align	2;                              \
 
- 		.type	symbol, @function;              \
 
- 		.ent	symbol, 0;                       \
 
- symbol:		.frame	sp, framesize, rpc
 
- /*
 
-  * END - mark end of function
 
-  */
 
- #define	END(function)                                   \
 
- 		.end	function;		        \
 
- 		.size	function, .-function
 
- /*
 
-  * EXPORT - export definition of symbol
 
-  */
 
- #define EXPORT(symbol)					\
 
- 		.globl	symbol;                         \
 
- symbol:
 
- /*
 
-  * FEXPORT - export definition of a function symbol
 
-  */
 
- #define FEXPORT(symbol)					\
 
- 		.globl	symbol;				\
 
- 		.type	symbol, @function;		\
 
- symbol:
 
- /*
 
-  * ABS - export absolute symbol
 
-  */
 
- #define	ABS(symbol,value)                               \
 
- 		.globl	symbol;                         \
 
- symbol		=	value
 
- #define	PANIC(msg)                                      \
 
- 		.set	push;				\
 
- 		.set	reorder;                        \
 
- 		PTR_LA	a0, 8f;                          \
 
- 		jal	panic;                          \
 
- 9:		b	9b;                             \
 
- 		.set	pop;				\
 
- 		TEXT(msg)
 
- /*
 
-  * Print formatted string
 
-  */
 
- #ifdef CONFIG_PRINTK
 
- #define PRINT(string)                                   \
 
- 		.set	push;				\
 
- 		.set	reorder;                        \
 
- 		PTR_LA	a0, 8f;                          \
 
- 		jal	printk;                         \
 
- 		.set	pop;				\
 
- 		TEXT(string)
 
- #else
 
- #define PRINT(string)
 
- #endif
 
- #define	TEXT(msg)                                       \
 
- 		.pushsection .data;			\
 
- 8:		.asciiz	msg;                            \
 
- 		.popsection;
 
- /*
 
-  * Build text tables
 
-  */
 
- #define TTABLE(string)                                  \
 
- 		.pushsection .text;			\
 
- 		.word	1f;                             \
 
- 		.popsection				\
 
- 		.pushsection .data;			\
 
- 1:		.asciiz	string;                         \
 
- 		.popsection
 
- /*
 
-  * MIPS IV pref instruction.
 
-  * Use with .set noreorder only!
 
-  *
 
-  * MIPS IV implementations are free to treat this as a nop.  The R5000
 
-  * is one of them.  So we should have an option not to use this instruction.
 
-  */
 
- #ifdef CONFIG_CPU_HAS_PREFETCH
 
- #define PREF(hint,addr)                                 \
 
- 		.set	push;				\
 
- 		.set	mips4;				\
 
- 		pref	hint, addr;			\
 
- 		.set	pop
 
- #define PREFX(hint,addr)                                \
 
- 		.set	push;				\
 
- 		.set	mips4;				\
 
- 		prefx	hint, addr;			\
 
- 		.set	pop
 
- #else /* !CONFIG_CPU_HAS_PREFETCH */
 
- #define PREF(hint, addr)
 
- #define PREFX(hint, addr)
 
- #endif /* !CONFIG_CPU_HAS_PREFETCH */
 
- /*
 
-  * MIPS ISA IV/V movn/movz instructions and equivalents for older CPUs.
 
-  */
 
- #if (_MIPS_ISA == _MIPS_ISA_MIPS1)
 
- #define MOVN(rd, rs, rt)                                \
 
- 		.set	push;				\
 
- 		.set	reorder;			\
 
- 		beqz	rt, 9f;                         \
 
- 		move	rd, rs;                         \
 
- 		.set	pop;				\
 
- 9:
 
- #define MOVZ(rd, rs, rt)                                \
 
- 		.set	push;				\
 
- 		.set	reorder;			\
 
- 		bnez	rt, 9f;                         \
 
- 		move	rd, rs;                         \
 
- 		.set	pop;				\
 
- 9:
 
- #endif /* _MIPS_ISA == _MIPS_ISA_MIPS1 */
 
- #if (_MIPS_ISA == _MIPS_ISA_MIPS2) || (_MIPS_ISA == _MIPS_ISA_MIPS3)
 
- #define MOVN(rd, rs, rt)                                \
 
- 		.set	push;				\
 
- 		.set	noreorder;			\
 
- 		bnezl	rt, 9f;                         \
 
- 		 move	rd, rs;                         \
 
- 		.set	pop;				\
 
- 9:
 
- #define MOVZ(rd, rs, rt)                                \
 
- 		.set	push;				\
 
- 		.set	noreorder;			\
 
- 		beqzl	rt, 9f;                         \
 
- 		 move	rd, rs;                         \
 
- 		.set	pop;				\
 
- 9:
 
- #endif /* (_MIPS_ISA == _MIPS_ISA_MIPS2) || (_MIPS_ISA == _MIPS_ISA_MIPS3) */
 
- #if (_MIPS_ISA == _MIPS_ISA_MIPS4 ) || (_MIPS_ISA == _MIPS_ISA_MIPS5) || \
 
-     (_MIPS_ISA == _MIPS_ISA_MIPS32) || (_MIPS_ISA == _MIPS_ISA_MIPS64)
 
- #define MOVN(rd, rs, rt)                                \
 
- 		movn	rd, rs, rt
 
- #define MOVZ(rd, rs, rt)                                \
 
- 		movz	rd, rs, rt
 
- #endif /* MIPS IV, MIPS V, MIPS32 or MIPS64 */
 
- /*
 
-  * Stack alignment
 
-  */
 
- #if (_MIPS_SIM == _MIPS_SIM_ABI32)
 
- #define ALSZ	7
 
- #define ALMASK	~7
 
- #endif
 
- #if (_MIPS_SIM == _MIPS_SIM_NABI32) || (_MIPS_SIM == _MIPS_SIM_ABI64)
 
- #define ALSZ	15
 
- #define ALMASK	~15
 
- #endif
 
- /*
 
-  * Macros to handle different pointer/register sizes for 32/64-bit code
 
-  */
 
- /*
 
-  * Size of a register
 
-  */
 
- #ifdef __mips64
 
- #define SZREG	8
 
- #else
 
- #define SZREG	4
 
- #endif
 
- /*
 
-  * Use the following macros in assemblercode to load/store registers,
 
-  * pointers etc.
 
-  */
 
- #if (_MIPS_SIM == _MIPS_SIM_ABI32)
 
- #define REG_S		sw
 
- #define REG_L		lw
 
- #define REG_SUBU	subu
 
- #define REG_ADDU	addu
 
- #endif
 
- #if (_MIPS_SIM == _MIPS_SIM_NABI32) || (_MIPS_SIM == _MIPS_SIM_ABI64)
 
- #define REG_S		sd
 
- #define REG_L		ld
 
- #define REG_SUBU	dsubu
 
- #define REG_ADDU	daddu
 
- #endif
 
- /*
 
-  * How to add/sub/load/store/shift C int variables.
 
-  */
 
- #if (_MIPS_SZINT == 32)
 
- #define INT_ADD		add
 
- #define INT_ADDU	addu
 
- #define INT_ADDI	addi
 
- #define INT_ADDIU	addiu
 
- #define INT_SUB		sub
 
- #define INT_SUBU	subu
 
- #define INT_L		lw
 
- #define INT_S		sw
 
- #define INT_SLL		sll
 
- #define INT_SLLV	sllv
 
- #define INT_SRL		srl
 
- #define INT_SRLV	srlv
 
- #define INT_SRA		sra
 
- #define INT_SRAV	srav
 
- #endif
 
- #if (_MIPS_SZINT == 64)
 
- #define INT_ADD		dadd
 
- #define INT_ADDU	daddu
 
- #define INT_ADDI	daddi
 
- #define INT_ADDIU	daddiu
 
- #define INT_SUB		dsub
 
- #define INT_SUBU	dsubu
 
- #define INT_L		ld
 
- #define INT_S		sd
 
- #define INT_SLL		dsll
 
- #define INT_SLLV	dsllv
 
- #define INT_SRL		dsrl
 
- #define INT_SRLV	dsrlv
 
- #define INT_SRA		dsra
 
- #define INT_SRAV	dsrav
 
- #endif
 
- /*
 
-  * How to add/sub/load/store/shift C long variables.
 
-  */
 
- #if (_MIPS_SZLONG == 32)
 
- #define LONG_ADD	add
 
- #define LONG_ADDU	addu
 
- #define LONG_ADDI	addi
 
- #define LONG_ADDIU	addiu
 
- #define LONG_SUB	sub
 
- #define LONG_SUBU	subu
 
- #define LONG_L		lw
 
- #define LONG_S		sw
 
- #define LONG_SLL	sll
 
- #define LONG_SLLV	sllv
 
- #define LONG_SRL	srl
 
- #define LONG_SRLV	srlv
 
- #define LONG_SRA	sra
 
- #define LONG_SRAV	srav
 
- #define LONG		.word
 
- #define LONGSIZE	4
 
- #define LONGMASK	3
 
- #define LONGLOG		2
 
- #endif
 
- #if (_MIPS_SZLONG == 64)
 
- #define LONG_ADD	dadd
 
- #define LONG_ADDU	daddu
 
- #define LONG_ADDI	daddi
 
- #define LONG_ADDIU	daddiu
 
- #define LONG_SUB	dsub
 
- #define LONG_SUBU	dsubu
 
- #define LONG_L		ld
 
- #define LONG_S		sd
 
- #define LONG_SLL	dsll
 
- #define LONG_SLLV	dsllv
 
- #define LONG_SRL	dsrl
 
- #define LONG_SRLV	dsrlv
 
- #define LONG_SRA	dsra
 
- #define LONG_SRAV	dsrav
 
- #define LONG		.dword
 
- #define LONGSIZE	8
 
- #define LONGMASK	7
 
- #define LONGLOG		3
 
- #endif
 
- /*
 
-  * How to add/sub/load/store/shift pointers.
 
-  */
 
- #if (_MIPS_SZPTR == 32)
 
- #define PTR_ADD		add
 
- #define PTR_ADDU	addu
 
- #define PTR_ADDI	addi
 
- #define PTR_ADDIU	addiu
 
- #define PTR_SUB		sub
 
- #define PTR_SUBU	subu
 
- #define PTR_L		lw
 
- #define PTR_S		sw
 
- #define PTR_LA		la
 
- #define PTR_LI		li
 
- #define PTR_SLL		sll
 
- #define PTR_SLLV	sllv
 
- #define PTR_SRL		srl
 
- #define PTR_SRLV	srlv
 
- #define PTR_SRA		sra
 
- #define PTR_SRAV	srav
 
- #define PTR_SCALESHIFT	2
 
- #define PTR		.word
 
- #define PTRSIZE		4
 
- #define PTRLOG		2
 
- #endif
 
- #if (_MIPS_SZPTR == 64)
 
- #define PTR_ADD		dadd
 
- #define PTR_ADDU	daddu
 
- #define PTR_ADDI	daddi
 
- #define PTR_ADDIU	daddiu
 
- #define PTR_SUB		dsub
 
- #define PTR_SUBU	dsubu
 
- #define PTR_L		ld
 
- #define PTR_S		sd
 
- #define PTR_LA		dla
 
- #define PTR_LI		dli
 
- #define PTR_SLL		dsll
 
- #define PTR_SLLV	dsllv
 
- #define PTR_SRL		dsrl
 
- #define PTR_SRLV	dsrlv
 
- #define PTR_SRA		dsra
 
- #define PTR_SRAV	dsrav
 
- #define PTR_SCALESHIFT	3
 
- #define PTR		.dword
 
- #define PTRSIZE		8
 
- #define PTRLOG		3
 
- #endif
 
- /*
 
-  * Some cp0 registers were extended to 64bit for MIPS III.
 
-  */
 
- #if (_MIPS_SIM == _MIPS_SIM_ABI32)
 
- #define MFC0		mfc0
 
- #define MTC0		mtc0
 
- #endif
 
- #if (_MIPS_SIM == _MIPS_SIM_NABI32) || (_MIPS_SIM == _MIPS_SIM_ABI64)
 
- #define MFC0		dmfc0
 
- #define MTC0		dmtc0
 
- #endif
 
- #define SSNOP		sll zero, zero, 1
 
- #ifdef CONFIG_SGI_IP28
 
- /* Inhibit speculative stores to volatile (e.g.DMA) or invalid addresses. */
 
- #include <asm/cacheops.h>
 
- #define R10KCBARRIER(addr)  cache   Cache_Barrier, addr;
 
- #else
 
- #define R10KCBARRIER(addr)
 
- #endif
 
- #endif /* __ASM_ASM_H */
 
 
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