[PATCH] powerpc: Merged ppc_asm.h

Merged ppc_asm.h between ppc32 & ppc64.  The majority of the file is
common between the two architectures excluding how a single GPR is
saved/restored and which GPRs are non-volatile.

Additionally, moved the ASM_CONST macro used on ppc64 into ppc_asm.h.
Signed-off-by: Kumar Gala <kumar.gala@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

arch/ppc/kernel/head.S

@@ -804,7 +804,7 @@ load_up_altivec:
 	beq	1f
 	add	r4,r4,r6
 	addi	r4,r4,THREAD	/* want THREAD of last_task_used_altivec */
-	SAVE_32VR(0,r10,r4)
+	SAVE_32VRS(0,r10,r4)
 	mfvscr	vr0
 	li	r10,THREAD_VSCR
 	stvx	vr0,r10,r4
@@ -824,7 +824,7 @@ load_up_altivec:
 	stw	r4,THREAD_USED_VR(r5)
 	lvx	vr0,r10,r5
 	mtvscr	vr0
-	REST_32VR(0,r10,r5)
+	REST_32VRS(0,r10,r5)
 #ifndef CONFIG_SMP
 	subi	r4,r5,THREAD
 	sub	r4,r4,r6
@@ -870,7 +870,7 @@ giveup_altivec:
 	addi	r3,r3,THREAD		/* want THREAD of task */
 	lwz	r5,PT_REGS(r3)
 	cmpwi	0,r5,0
-	SAVE_32VR(0, r4, r3)
+	SAVE_32VRS(0, r4, r3)
 	mfvscr	vr0
 	li	r4,THREAD_VSCR
 	stvx	vr0,r4,r3

arch/ppc/kernel/head_fsl_booke.S

@@ -853,7 +853,7 @@ load_up_spe:
 	cmpi	0,r4,0
 	beq	1f
 	addi	r4,r4,THREAD	/* want THREAD of last_task_used_spe */
-	SAVE_32EVR(0,r10,r4)
+	SAVE_32EVRS(0,r10,r4)
    	evxor	evr10, evr10, evr10	/* clear out evr10 */
 	evmwumiaa evr10, evr10, evr10	/* evr10 <- ACC = 0 * 0 + ACC */
 	li	r5,THREAD_ACC
@@ -873,7 +873,7 @@ load_up_spe:
 	stw	r4,THREAD_USED_SPE(r5)
 	evlddx	evr4,r10,r5
 	evmra	evr4,evr4
-	REST_32EVR(0,r10,r5)
+	REST_32EVRS(0,r10,r5)
 #ifndef CONFIG_SMP
 	subi	r4,r5,THREAD
 	stw	r4,last_task_used_spe@l(r3)
@@ -963,7 +963,7 @@ _GLOBAL(giveup_spe)
 	addi	r3,r3,THREAD		/* want THREAD of task */
 	lwz	r5,PT_REGS(r3)
 	cmpi	0,r5,0
-	SAVE_32EVR(0, r4, r3)
+	SAVE_32EVRS(0, r4, r3)
    	evxor	evr6, evr6, evr6	/* clear out evr6 */
 	evmwumiaa evr6, evr6, evr6	/* evr6 <- ACC = 0 * 0 + ACC */
 	li	r4,THREAD_ACC

include/asm-ppc64/cputable.h

@@ -16,7 +16,7 @@
 #define __ASM_PPC_CPUTABLE_H
 
 #include <linux/config.h>
-#include <asm/page.h> /* for ASM_CONST */
+#include <asm/ppc_asm.h> /* for ASM_CONST */
 
 /* Exposed to userland CPU features - Must match ppc32 definitions */
 #define PPC_FEATURE_32			0x80000000

include/asm-ppc64/mmu.h

@@ -14,6 +14,7 @@
 #define _PPC64_MMU_H_
 
 #include <linux/config.h>
+#include <asm/ppc_asm.h> /* for ASM_CONST */
 #include <asm/page.h>
 
 /*

include/asm-ppc64/page.h

@@ -11,13 +11,7 @@
  */
 
 #include <linux/config.h>
-
-#ifdef __ASSEMBLY__
-  #define ASM_CONST(x) x
-#else
-  #define __ASM_CONST(x) x##UL
-  #define ASM_CONST(x) __ASM_CONST(x)
-#endif
+#include <asm/ppc_asm.h> /* for ASM_CONST */
 
 /* PAGE_SHIFT determines the page size */
 #define PAGE_SHIFT	12

include/asm-ppc64/ppc_asm.h

-/*
- * arch/ppc64/kernel/ppc_asm.h
- *
- * Definitions used by various bits of low-level assembly code on PowerPC.
- *
- * Copyright (C) 1995-1999 Gary Thomas, Paul Mackerras, Cort Dougan.
- *
- *  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.
- */
-
-#ifndef _PPC64_PPC_ASM_H
-#define _PPC64_PPC_ASM_H
-/*
- * Macros for storing registers into and loading registers from
- * exception frames.
- */
-#define SAVE_GPR(n, base)	std	n,GPR0+8*(n)(base)
-#define SAVE_2GPRS(n, base)	SAVE_GPR(n, base); SAVE_GPR(n+1, base)
-#define SAVE_4GPRS(n, base)	SAVE_2GPRS(n, base); SAVE_2GPRS(n+2, base)
-#define SAVE_8GPRS(n, base)	SAVE_4GPRS(n, base); SAVE_4GPRS(n+4, base)
-#define SAVE_10GPRS(n, base)	SAVE_8GPRS(n, base); SAVE_2GPRS(n+8, base)
-#define REST_GPR(n, base)	ld	n,GPR0+8*(n)(base)
-#define REST_2GPRS(n, base)	REST_GPR(n, base); REST_GPR(n+1, base)
-#define REST_4GPRS(n, base)	REST_2GPRS(n, base); REST_2GPRS(n+2, base)
-#define REST_8GPRS(n, base)	REST_4GPRS(n, base); REST_4GPRS(n+4, base)
-#define REST_10GPRS(n, base)	REST_8GPRS(n, base); REST_2GPRS(n+8, base)
-
-#define SAVE_NVGPRS(base)	SAVE_8GPRS(14, base); SAVE_10GPRS(22, base)
-#define REST_NVGPRS(base)	REST_8GPRS(14, base); REST_10GPRS(22, base)
-
-#define SAVE_FPR(n, base)	stfd	n,THREAD_FPR0+8*(n)(base)
-#define SAVE_2FPRS(n, base)	SAVE_FPR(n, base); SAVE_FPR(n+1, base)
-#define SAVE_4FPRS(n, base)	SAVE_2FPRS(n, base); SAVE_2FPRS(n+2, base)
-#define SAVE_8FPRS(n, base)	SAVE_4FPRS(n, base); SAVE_4FPRS(n+4, base)
-#define SAVE_16FPRS(n, base)	SAVE_8FPRS(n, base); SAVE_8FPRS(n+8, base)
-#define SAVE_32FPRS(n, base)	SAVE_16FPRS(n, base); SAVE_16FPRS(n+16, base)
-#define REST_FPR(n, base)	lfd	n,THREAD_FPR0+8*(n)(base)
-#define REST_2FPRS(n, base)	REST_FPR(n, base); REST_FPR(n+1, base)
-#define REST_4FPRS(n, base)	REST_2FPRS(n, base); REST_2FPRS(n+2, base)
-#define REST_8FPRS(n, base)	REST_4FPRS(n, base); REST_4FPRS(n+4, base)
-#define REST_16FPRS(n, base)	REST_8FPRS(n, base); REST_8FPRS(n+8, base)
-#define REST_32FPRS(n, base)	REST_16FPRS(n, base); REST_16FPRS(n+16, base)
-
-#define SAVE_VR(n,b,base)	li b,THREAD_VR0+(16*(n));  stvx n,b,base
-#define SAVE_2VRS(n,b,base)	SAVE_VR(n,b,base); SAVE_VR(n+1,b,base)
-#define SAVE_4VRS(n,b,base)	SAVE_2VRS(n,b,base); SAVE_2VRS(n+2,b,base)
-#define SAVE_8VRS(n,b,base)	SAVE_4VRS(n,b,base); SAVE_4VRS(n+4,b,base)
-#define SAVE_16VRS(n,b,base)	SAVE_8VRS(n,b,base); SAVE_8VRS(n+8,b,base)
-#define SAVE_32VRS(n,b,base)	SAVE_16VRS(n,b,base); SAVE_16VRS(n+16,b,base)
-#define REST_VR(n,b,base)	li b,THREAD_VR0+(16*(n)); lvx n,b,base
-#define REST_2VRS(n,b,base)	REST_VR(n,b,base); REST_VR(n+1,b,base)
-#define REST_4VRS(n,b,base)	REST_2VRS(n,b,base); REST_2VRS(n+2,b,base)
-#define REST_8VRS(n,b,base)	REST_4VRS(n,b,base); REST_4VRS(n+4,b,base)
-#define REST_16VRS(n,b,base)	REST_8VRS(n,b,base); REST_8VRS(n+8,b,base)
-#define REST_32VRS(n,b,base)	REST_16VRS(n,b,base); REST_16VRS(n+16,b,base)
-
-/* Macros to adjust thread priority for Iseries hardware multithreading */
-#define HMT_LOW		or 1,1,1
-#define HMT_MEDIUM	or 2,2,2
-#define HMT_HIGH	or 3,3,3
-
-/* Insert the high 32 bits of the MSR into what will be the new
-   MSR (via SRR1 and rfid)  This preserves the MSR.SF and MSR.ISF
-   bits. */
-
-#define FIX_SRR1(ra, rb)	\
-	mr	rb,ra;		\
-	mfmsr	ra;		\
-	rldimi	ra,rb,0,32
-
-#define CLR_TOP32(r)	rlwinm	(r),(r),0,0,31	/* clear top 32 bits */
-
-/* 
- * LOADADDR( rn, name )
- *   loads the address of 'name' into 'rn'
- *
- * LOADBASE( rn, name )
- *   loads the address (less the low 16 bits) of 'name' into 'rn'
- *   suitable for base+disp addressing
- */
-#define LOADADDR(rn,name) \
-	lis	rn,name##@highest;	\
-	ori	rn,rn,name##@higher;	\
-	rldicr	rn,rn,32,31;		\
-	oris	rn,rn,name##@h;		\
-	ori	rn,rn,name##@l
-
-#define LOADBASE(rn,name) \
-	lis	rn,name@highest;	\
-	ori	rn,rn,name@higher;	\
-	rldicr	rn,rn,32,31;		\
-	oris	rn,rn,name@ha
-
-
-#define SET_REG_TO_CONST(reg, value)	         	\
-	lis     reg,(((value)>>48)&0xFFFF);             \
-	ori     reg,reg,(((value)>>32)&0xFFFF);         \
-	rldicr  reg,reg,32,31;                          \
-	oris    reg,reg,(((value)>>16)&0xFFFF);         \
-	ori     reg,reg,((value)&0xFFFF);
-
-#define SET_REG_TO_LABEL(reg, label)	         	\
-	lis     reg,(label)@highest;                    \
-	ori     reg,reg,(label)@higher;                 \
-	rldicr  reg,reg,32,31;                          \
-	oris    reg,reg,(label)@h;                      \
-	ori     reg,reg,(label)@l;
-
-
-/* PPPBBB - DRENG  If KERNELBASE is always 0xC0...,
- * Then we can easily do this with one asm insn. -Peter
- */
-#define tophys(rd,rs)                           \
-        lis     rd,((KERNELBASE>>48)&0xFFFF);   \
-        rldicr  rd,rd,32,31;                    \
-        sub     rd,rs,rd
-
-#define tovirt(rd,rs)                           \
-        lis     rd,((KERNELBASE>>48)&0xFFFF);   \
-        rldicr  rd,rd,32,31;                    \
-        add     rd,rs,rd
-
-/* Condition Register Bit Fields */
-
-#define	cr0	0
-#define	cr1	1
-#define	cr2	2
-#define	cr3	3
-#define	cr4	4
-#define	cr5	5
-#define	cr6	6
-#define	cr7	7
-
-
-/* General Purpose Registers (GPRs) */
-
-#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
-
-
-/* Floating Point Registers (FPRs) */
-
-#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
-
-#define	vr0	0
-#define	vr1	1
-#define	vr2	2
-#define	vr3	3
-#define	vr4	4
-#define	vr5	5
-#define	vr6	6
-#define	vr7	7
-#define	vr8	8
-#define	vr9	9
-#define	vr10	10
-#define	vr11	11
-#define	vr12	12
-#define	vr13	13
-#define	vr14	14
-#define	vr15	15
-#define	vr16	16
-#define	vr17	17
-#define	vr18	18
-#define	vr19	19
-#define	vr20	20
-#define	vr21	21
-#define	vr22	22
-#define	vr23	23
-#define	vr24	24
-#define	vr25	25
-#define	vr26	26
-#define	vr27	27
-#define	vr28	28
-#define	vr29	29
-#define	vr30	30
-#define	vr31	31
-
-#endif /* _PPC64_PPC_ASM_H */