 @@ -1,404 +1,405 @@
-/*	$NetBSD: asm.h,v 1.37 2011/06/05 16:52:25 matt Exp $	*/
+/*	$NetBSD: asm.h,v 1.38 2011/06/08 05:11:07 matt Exp $	*/
 /*
  * Copyright (C) 1995, 1996 Wolfgang Solfrank.
  * Copyright (C) 1995, 1996 TooLs GmbH.
  * All rights reserved.
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  * 3. All advertising materials mentioning features or use of this software
  *    must display the following acknowledgement:
  *	This product includes software developed by TooLs GmbH.
  * 4. The name of TooLs GmbH may not be used to endorse or promote products
  *    derived from this software without specific prior written permission.
+ *
  * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 #ifndef _PPC_ASM_H_
 #define _PPC_ASM_H_
 #ifdef _LP64
 /* ppc64 is always PIC, r2 is always the TOC */
 #define	PIC_PLT(x)	.x
 #else
 #ifdef PIC
 #define PIC_PROLOGUE	XXX
 #define PIC_EPILOGUE	XXX
 #define PIC_PLT(x)	x+32768@plt
 #ifdef __STDC__
 #define	PIC_TOCNAME(name) 	.LCTOC_##name
 #else
 #define	PIC_TOCNAME(name) 	.LCTOC_/**/name
 #endif
 #define	PIC_TOCSETUP(name, reg)						\
 		.pushsection ".got2","aw"				;\
 	PIC_TOCNAME(name) = . + 32768					;\
 		.popsection						;\
 		bcl	20,31,1001f					;\
 :	mflr	reg						;\
 		addis	reg,reg,PIC_TOCNAME(name)-1001b@ha		;\
 		addi	reg,reg,PIC_TOCNAME(name)-1001b@l
 #define	PIC_GOTSETUP(reg)						\
 		bcl	20,31,2002f					;\
 :	mflr	reg						;\
 		addis	reg,reg,_GLOBAL_OFFSET_TABLE_-2002b@ha		;\
 		addi	reg,reg,_GLOBAL_OFFSET_TABLE_-2002b@l
 #ifdef	__STDC__
 #define PIC_GOT(x)	XXX
 #define PIC_GOTOFF(x)	XXX
 #else	/* not __STDC__ */
 #define PIC_GOT(x)	XXX
 #define PIC_GOTOFF(x)	XXX
 #endif	/* __STDC__ */
 #else
 #define PIC_PROLOGUE
 #define PIC_EPILOGUE
 #define PIC_PLT(x)	x
 #define PIC_GOT(x)	x
 #define PIC_GOTOFF(x)	x
 #define	PIC_GOTSETUP(r)
 #define	PIC_TOCSETUP(n, r)
 #endif
 #endif
 #define	_C_LABEL(x)	x
 #define	_ASM_LABEL(x)	x
 #define	_GLOBAL(x) \
 	.data; .align 2; .globl x; x:
 #ifdef GPROF
 # define _PROF_PROLOGUE	mflr 0; stw 0,4(1); bl _mcount
 #else
 # define _PROF_PROLOGUE
 #endif
 #ifdef _LP64
 #define	SF_HEADER_SZ	48
 #define	SF_PARAM_SZ	64
 #define	SF_SZ		(SF_HEADER_SZ + SF_PARAM_SZ)
 #define	SF_SP		 0
 #define	SF_CR		 8
 #define	SF_LR		16
 #define	SF_PARAM	SF_HEADER_SZ
 #define	ENTRY(y)			\
 	.globl	y;			\
 	.section ".opd","aw";		\
 	.align	3;			\
 y:	.quad	.y,.TOC.@tocbase,0;	\
 	.previous;			\
 	.size	y,24;			\
 	.type	.y,@function;		\
 	.globl	.y;			\
 	.align	3;			\
 .y:
 #define	CALL(y)				\
 	bl	.y;			\
 	nop
 #define	ENTRY_NOPROFILE(y)	ENTRY(y)
 #define	ASENTRY(y)		ENTRY(y)
 #else
 #define _ENTRY(x) \
 	.text; .align 2; .globl x; .type x,@function; x:
 #define	ENTRY(y)	_ENTRY(_C_LABEL(y)); _PROF_PROLOGUE
 #define	END(y)		.size _C_LABEL(y),.-_C_LABEL(y)
 #define	ENTRY_NOPROFILE(y) _ENTRY(_C_LABEL(y))
 #define	CALL(y)				\
 	bl	y
 #define	ASENTRY(y)	_ENTRY(_ASM_LABEL(y)); _PROF_PROLOGUE
 #endif
 #define	GLOBAL(y)	_GLOBAL(_C_LABEL(y))
 #define	ASMSTR		.asciz
 #undef __RCSID
 #define RCSID(x)	__RCSID(x)
 #define	__RCSID(x)	.pushsection .ident; .asciz x; .popsection
 #ifdef __ELF__
 #define	WEAK_ALIAS(alias,sym)						\
 	.weak alias;							\
 	alias = sym
 #endif
 /*
  * STRONG_ALIAS: create a strong alias.
  */
 #define STRONG_ALIAS(alias,sym)						\
 	.globl alias;							\
 	alias = sym
 #ifdef __STDC__
 #define	WARN_REFERENCES(sym,msg)					\
 	.pushsection .gnu.warning. ## sym;				\
 	.ascii msg;							\
 	.popsection
 #else
 #define	WARN_REFERENCES(sym,msg)					\
 	.pushsection .gnu.warning./**/sym;				\
 	.ascii msg;							\
 	.popsection
 #endif /* __STDC__ */
 #ifdef _KERNEL
 /*
  * Get cpu_info pointer for current processor.  Always in SPRG0. *ALWAYS*
  */
 #define	GET_CPUINFO(r)		mfsprg r,0
 /*
  * IN:
  *	R4[er] = first free byte beyond end/esym.
+ *
  * OUT:
  *	R1[sp] = new kernel stack
  *	R4[er] = kernelend
  */
 #ifdef CI_INTSTK
 #define	INIT_CPUINFO_INTSTK(er,tmp1)					\
 	addi	er,er,INTSTK;						\
 	stptr	er,CI_INTSTK(tmp1)
 #else
 #define	INIT_CPUINFO_INTSTK(er,tmp1)	/* nothing */
 #endif
 /*
  * We use lis/ori instead of lis/addi in case tmp2 is r0.
  */
 #define	INIT_CPUINFO(er,sp,tmp1,tmp2) 					\
 	li	tmp1,PAGE_MASK;						\
 	add	er,er,tmp1;						\
 	andc	er,er,tmp1;		/* page align */		\
 	lis	tmp1,_C_LABEL(cpu_info)@ha;				\
 	addi	tmp1,tmp1,_C_LABEL(cpu_info)@l;				\
 	mtsprg0	tmp1;			/* save for later use */	\
 	INIT_CPUINFO_INTSTK(er,tmp1);					\
 	lis	tmp2,_C_LABEL(emptyidlespin)@h;				\
 	ori	tmp2,tmp2,_C_LABEL(emptyidlespin)@l;			\
 	stptr	tmp2,CI_IDLESPIN(tmp1);					\
 	li	tmp2,-1;						\
 	stint	tmp2,CI_IDEPTH(tmp1);					\
 	li	tmp2,0;							\
 	lis	%r13,_C_LABEL(lwp0)@h;					\
 	ori	%r13,%r13,_C_LABEL(lwp0)@l;				\
 	stptr	er,L_PCB(%r13);		/* XXXuvm_lwp_getuarea */	\
 	stptr	tmp1,L_CPU(%r13);	 				\
 	addi	er,er,USPACE;		/* stackpointer for lwp0 */	\
 	addi	sp,er,-FRAMELEN-CALLFRAMELEN;	/* stackpointer for lwp0 */ \
 	stptr	sp,L_MD_UTF(%r13);	/* save in lwp0.l_md.md_utf */	\
 		/* er = end of mem reserved for kernel */		\
 	li	tmp2,0;							\
 	stptr	tmp2,-CALLFRAMELEN(er);	/* end of stack chain */	\
 	stptru	tmp2,-CALLFRAMELEN(sp)	/* end of stack chain */
 #endif
 /* Condition Register Bit Fields */
 #if defined(_REGNAMES)
 #if defined(_KERNEL) || defined(_STANDALONE)
 #define cr0     0
 #define cr1     1
 #define cr2     2
 #define cr3     3
 #define cr4     4
 #define cr5     5
 #define cr6     6
 #define cr7     7
 #endif
 /* General Purpose Registers (GPRs) */
 #if defined(_KERNEL) || defined(_STANDALONE)
 #define r0      0
 #define r1      1
 #define r2      2
 #define r3      3
 #define r4      4
 #define r5      5
 #define r6      6
 #define r7      7
 #define r8      8
 #define r9      9
 #define r10     10
 #define r11     11
 #define r12     12
 #define r13     13
 #define r14     14
 #define r15     15
 #define r16     16
 #define r17     17
 #define r18     18
 #define r19     19
 #define r20     20
 #define r21     21
 #define r22     22
 #define r23     23
 #define r24     24
 #define r25     25
 #define r26     26
 #define r27     27
 #define r28     28
 #define r29     29
 #define r30     30
 #define r31     31
 #endif
 /* Floating Point Registers (FPRs) */
 #if defined(_KERNEL) || defined(_STANDALONE)
 #define fr0     0
 #define fr1     1
 #define fr2     2
 #define fr3     3
 #define fr4     4
 #define fr5     5
 #define fr6     6
 #define fr7     7
 #define fr8     8
 #define fr9     9
 #define fr10    10
 #define fr11    11
 #define fr12    12
 #define fr13    13
 #define fr14    14
 #define fr15    15
 #define fr16    16
 #define fr17    17
 #define fr18    18
 #define fr19    19
 #define fr20    20
 #define fr21    21
 #define fr22    22
 #define fr23    23
 #define fr24    24
 #define fr25    25
 #define fr26    26
 #define fr27    27
 #define fr28    28
 #define fr29    29
 #define fr30    30
 #define fr31    31
 #endif
 #endif /* _REGNAMES */
 /*
  * Add some psuedo instructions to made sharing of assembly versions of
  * ILP32 and LP64 code possible.
  */
 #define ldint	lwz		/* not needed but for completeness */
 #define ldintu	lwzu		/* not needed but for completeness */
 #define stint	stw		/* not needed but for completeness */
 #define stintu	stwu		/* not needed but for completeness */
 #ifndef _LP64
 #define ldlong	lwz		/* load "C" long */
 #define ldlongu	lwzu		/* load "C" long with udpate */
 #define stlong	stw		/* load "C" long */
 #define stlongu	stwu		/* load "C" long with udpate */
 #define ldptr	lwz		/* load "C" pointer */
 #define ldptru	lwzu		/* load "C" pointer with udpate */
 #define stptr	stw		/* load "C" pointer */
 #define stptru	stwu		/* load "C" pointer with udpate */
 #define	ldreg	lwz		/* load PPC general register */
 #define	ldregu	lwzu		/* load PPC general register with udpate */
 #define	streg	stw		/* load PPC general register */
 #define	stregu	stwu		/* load PPC general register with udpate */
 #define	SZREG	4		/* 4 byte registers */
 #define	lptrarx	lwarx		/* load "C" pointer with reservation */
 #define	llongarx lwarx		/* load "C" long with reservation */
 #define	lregarx	lwarx		/* load PPC general register with reservation */
 #define	stptrcx  stwcx		/* store "C" pointer conditional */
 #define	stlongcx stwcx		/* store "C" long conditional */
 #define	stregcx  stwcx		/* store PPC general register conditional */
 #define	clrrptri  clrrwi	/* clear right "C" pointer immediate */
 #define	clrrlongi clrrwi	/* clear right "C" long immediate */
 #define	clrrregi  clrrwi	/* clear right PPC general register immediate */
 #else
 #define ldlong	ld		/* load "C" long */
 #define ldlongu	ldu		/* load "C" long with update */
 #define stlong	std		/* store "C" long */
 #define stlongu	stdu		/* store "C" long with update */
 #define ldptr	ld		/* load "C" pointer */
 #define ldptru	ldu		/* load "C" pointer with update */
 #define stptr	std		/* store "C" pointer */
 #define stptru	stdu		/* store "C" pointer with update */
 #define	ldreg	ld		/* load PPC general register */
 #define	ldregu	ldu		/* load PPC general register with update */
 #define	streg	std		/* store PPC general register */
 #define	stregu	stdu		/* store PPC general register with update */
 /* redefined this to force an error on PPC64 to catch their use.  */
 #define	lmw	lmd		/* load multiple PPC general registers */
 #define	stmw	stmd		/* store multiple PPC general registers */
 #define	SZREG	8		/* 8 byte registers */
 #define	lptrarx	ldarx		/* load "C" pointer with reservation */
 #define	llongarx ldarx		/* load "C" long with reservation */
 #define	lregarx	ldarx		/* load PPC general register with reservation */
 #define	stptrcx  stdcx		/* store "C" pointer conditional */
 #define	stlongcx stdcx		/* store "C" long conditional */
 #define	stregax  stdcx		/* store PPC general register conditional */
 #define	clrrptri  clrrdi	/* clear right "C" pointer immediate */
 #define	clrrlongi clrrdi	/* clear right "C" long immediate */
 #define	clrrregi  clrrdi	/* clear right PPC general register immediate */
 #endif
 #ifdef _LOCORE
 .macro	stmd	r,dst
 	i = 0
     .rept	32-\r
 	std	i+\r, i*8+\dst
 	i = i + 1
     .endr
 .endm
 .macro	lmd	r,dst
 	i = 0
     .rept	32-\r
 	ld	i+\r, i*8+\dst
 	i = i + 1
     .endr
 .endm
 #endif
 #endif /* !_PPC_ASM_H_ */