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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002 * Copyright (C) 1995-1999 Gary Thomas, Paul Mackerras, Cort Dougan.
Linus Torvalds1da177e2005-04-16 15:20:36 -07003 */
Kumar Gala5f7c6902005-09-09 15:02:25 -05004#ifndef _ASM_POWERPC_PPC_ASM_H
5#define _ASM_POWERPC_PPC_ASM_H
6
Tim Abbott9203fc92009-04-27 14:02:24 -04007#include <linux/init.h>
Paul Mackerras40ef8cb2005-10-10 22:50:37 +10008#include <linux/stringify.h>
David Gibson3ddfbcf2005-11-10 12:56:55 +11009#include <asm/asm-compat.h>
Michael Neuling9c75a312008-06-26 17:07:48 +100010#include <asm/processor.h>
Kumar Gala16c57b32009-02-10 20:10:44 +000011#include <asm/ppc-opcode.h>
Paul Mackerrascf9efce2010-08-26 19:56:43 +000012#include <asm/firmware.h>
Paul Mackerras40ef8cb2005-10-10 22:50:37 +100013
David Gibson3ddfbcf2005-11-10 12:56:55 +110014#ifndef __ASSEMBLY__
15#error __FILE__ should only be used in assembler files
16#else
17
18#define SZL (BITS_PER_LONG/8)
Linus Torvalds1da177e2005-04-16 15:20:36 -070019
20/*
Paul Mackerrasc6622f62006-02-24 10:06:59 +110021 * Stuff for accurate CPU time accounting.
22 * These macros handle transitions between user and system state
23 * in exception entry and exit and accumulate time to the
24 * user_time and system_time fields in the paca.
25 */
26
27#ifndef CONFIG_VIRT_CPU_ACCOUNTING
28#define ACCOUNT_CPU_USER_ENTRY(ra, rb)
29#define ACCOUNT_CPU_USER_EXIT(ra, rb)
Paul Mackerrascf9efce2010-08-26 19:56:43 +000030#define ACCOUNT_STOLEN_TIME
Paul Mackerrasc6622f62006-02-24 10:06:59 +110031#else
32#define ACCOUNT_CPU_USER_ENTRY(ra, rb) \
33 beq 2f; /* if from kernel mode */ \
Paul Mackerrascf9efce2010-08-26 19:56:43 +000034 MFTB(ra); /* get timebase */ \
35 ld rb,PACA_STARTTIME_USER(r13); \
36 std ra,PACA_STARTTIME(r13); \
Paul Mackerrasc6622f62006-02-24 10:06:59 +110037 subf rb,rb,ra; /* subtract start value */ \
38 ld ra,PACA_USER_TIME(r13); \
39 add ra,ra,rb; /* add on to user time */ \
40 std ra,PACA_USER_TIME(r13); \
412:
42
43#define ACCOUNT_CPU_USER_EXIT(ra, rb) \
Paul Mackerrascf9efce2010-08-26 19:56:43 +000044 MFTB(ra); /* get timebase */ \
45 ld rb,PACA_STARTTIME(r13); \
46 std ra,PACA_STARTTIME_USER(r13); \
Paul Mackerrasc6622f62006-02-24 10:06:59 +110047 subf rb,rb,ra; /* subtract start value */ \
48 ld ra,PACA_SYSTEM_TIME(r13); \
Paul Mackerrascf9efce2010-08-26 19:56:43 +000049 add ra,ra,rb; /* add on to system time */ \
50 std ra,PACA_SYSTEM_TIME(r13)
51
52#ifdef CONFIG_PPC_SPLPAR
53#define ACCOUNT_STOLEN_TIME \
54BEGIN_FW_FTR_SECTION; \
55 beq 33f; \
56 /* from user - see if there are any DTL entries to process */ \
57 ld r10,PACALPPACAPTR(r13); /* get ptr to VPA */ \
58 ld r11,PACA_DTL_RIDX(r13); /* get log read index */ \
59 ld r10,LPPACA_DTLIDX(r10); /* get log write index */ \
60 cmpd cr1,r11,r10; \
61 beq+ cr1,33f; \
62 bl .accumulate_stolen_time; \
6333: \
64END_FW_FTR_SECTION_IFSET(FW_FEATURE_SPLPAR)
65
66#else /* CONFIG_PPC_SPLPAR */
67#define ACCOUNT_STOLEN_TIME
68
69#endif /* CONFIG_PPC_SPLPAR */
70
71#endif /* CONFIG_VIRT_CPU_ACCOUNTING */
Paul Mackerrasc6622f62006-02-24 10:06:59 +110072
73/*
Linus Torvalds1da177e2005-04-16 15:20:36 -070074 * Macros for storing registers into and loading registers from
75 * exception frames.
76 */
Kumar Gala5f7c6902005-09-09 15:02:25 -050077#ifdef __powerpc64__
78#define SAVE_GPR(n, base) std n,GPR0+8*(n)(base)
79#define REST_GPR(n, base) ld n,GPR0+8*(n)(base)
80#define SAVE_NVGPRS(base) SAVE_8GPRS(14, base); SAVE_10GPRS(22, base)
81#define REST_NVGPRS(base) REST_8GPRS(14, base); REST_10GPRS(22, base)
82#else
Linus Torvalds1da177e2005-04-16 15:20:36 -070083#define SAVE_GPR(n, base) stw n,GPR0+4*(n)(base)
Linus Torvalds1da177e2005-04-16 15:20:36 -070084#define REST_GPR(n, base) lwz n,GPR0+4*(n)(base)
Linus Torvalds1da177e2005-04-16 15:20:36 -070085#define SAVE_NVGPRS(base) SAVE_GPR(13, base); SAVE_8GPRS(14, base); \
86 SAVE_10GPRS(22, base)
87#define REST_NVGPRS(base) REST_GPR(13, base); REST_8GPRS(14, base); \
88 REST_10GPRS(22, base)
Kumar Gala5f7c6902005-09-09 15:02:25 -050089#endif
90
Kumar Gala5f7c6902005-09-09 15:02:25 -050091#define SAVE_2GPRS(n, base) SAVE_GPR(n, base); SAVE_GPR(n+1, base)
92#define SAVE_4GPRS(n, base) SAVE_2GPRS(n, base); SAVE_2GPRS(n+2, base)
93#define SAVE_8GPRS(n, base) SAVE_4GPRS(n, base); SAVE_4GPRS(n+4, base)
94#define SAVE_10GPRS(n, base) SAVE_8GPRS(n, base); SAVE_2GPRS(n+8, base)
95#define REST_2GPRS(n, base) REST_GPR(n, base); REST_GPR(n+1, base)
96#define REST_4GPRS(n, base) REST_2GPRS(n, base); REST_2GPRS(n+2, base)
97#define REST_8GPRS(n, base) REST_4GPRS(n, base); REST_4GPRS(n+4, base)
98#define REST_10GPRS(n, base) REST_8GPRS(n, base); REST_2GPRS(n+8, base)
Linus Torvalds1da177e2005-04-16 15:20:36 -070099
Michael Neuling9c75a312008-06-26 17:07:48 +1000100#define SAVE_FPR(n, base) stfd n,THREAD_FPR0+8*TS_FPRWIDTH*(n)(base)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700101#define SAVE_2FPRS(n, base) SAVE_FPR(n, base); SAVE_FPR(n+1, base)
102#define SAVE_4FPRS(n, base) SAVE_2FPRS(n, base); SAVE_2FPRS(n+2, base)
103#define SAVE_8FPRS(n, base) SAVE_4FPRS(n, base); SAVE_4FPRS(n+4, base)
104#define SAVE_16FPRS(n, base) SAVE_8FPRS(n, base); SAVE_8FPRS(n+8, base)
105#define SAVE_32FPRS(n, base) SAVE_16FPRS(n, base); SAVE_16FPRS(n+16, base)
Michael Neuling9c75a312008-06-26 17:07:48 +1000106#define REST_FPR(n, base) lfd n,THREAD_FPR0+8*TS_FPRWIDTH*(n)(base)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107#define REST_2FPRS(n, base) REST_FPR(n, base); REST_FPR(n+1, base)
108#define REST_4FPRS(n, base) REST_2FPRS(n, base); REST_2FPRS(n+2, base)
109#define REST_8FPRS(n, base) REST_4FPRS(n, base); REST_4FPRS(n+4, base)
110#define REST_16FPRS(n, base) REST_8FPRS(n, base); REST_8FPRS(n+8, base)
111#define REST_32FPRS(n, base) REST_16FPRS(n, base); REST_16FPRS(n+16, base)
112
Michael Wolf23e55f92009-08-20 13:21:45 +0000113#define SAVE_VR(n,b,base) li b,THREAD_VR0+(16*(n)); stvx n,base,b
Kumar Gala5f7c6902005-09-09 15:02:25 -0500114#define SAVE_2VRS(n,b,base) SAVE_VR(n,b,base); SAVE_VR(n+1,b,base)
115#define SAVE_4VRS(n,b,base) SAVE_2VRS(n,b,base); SAVE_2VRS(n+2,b,base)
116#define SAVE_8VRS(n,b,base) SAVE_4VRS(n,b,base); SAVE_4VRS(n+4,b,base)
117#define SAVE_16VRS(n,b,base) SAVE_8VRS(n,b,base); SAVE_8VRS(n+8,b,base)
118#define SAVE_32VRS(n,b,base) SAVE_16VRS(n,b,base); SAVE_16VRS(n+16,b,base)
Michael Wolf23e55f92009-08-20 13:21:45 +0000119#define REST_VR(n,b,base) li b,THREAD_VR0+(16*(n)); lvx n,base,b
Kumar Gala5f7c6902005-09-09 15:02:25 -0500120#define REST_2VRS(n,b,base) REST_VR(n,b,base); REST_VR(n+1,b,base)
121#define REST_4VRS(n,b,base) REST_2VRS(n,b,base); REST_2VRS(n+2,b,base)
122#define REST_8VRS(n,b,base) REST_4VRS(n,b,base); REST_4VRS(n+4,b,base)
123#define REST_16VRS(n,b,base) REST_8VRS(n,b,base); REST_8VRS(n+8,b,base)
124#define REST_32VRS(n,b,base) REST_16VRS(n,b,base); REST_16VRS(n+16,b,base)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700125
Michael Neuling72ffff52008-06-25 14:07:18 +1000126/* Save the lower 32 VSRs in the thread VSR region */
Michael Wolf23e55f92009-08-20 13:21:45 +0000127#define SAVE_VSR(n,b,base) li b,THREAD_VSR0+(16*(n)); STXVD2X(n,base,b)
Michael Neuling72ffff52008-06-25 14:07:18 +1000128#define SAVE_2VSRS(n,b,base) SAVE_VSR(n,b,base); SAVE_VSR(n+1,b,base)
129#define SAVE_4VSRS(n,b,base) SAVE_2VSRS(n,b,base); SAVE_2VSRS(n+2,b,base)
130#define SAVE_8VSRS(n,b,base) SAVE_4VSRS(n,b,base); SAVE_4VSRS(n+4,b,base)
131#define SAVE_16VSRS(n,b,base) SAVE_8VSRS(n,b,base); SAVE_8VSRS(n+8,b,base)
132#define SAVE_32VSRS(n,b,base) SAVE_16VSRS(n,b,base); SAVE_16VSRS(n+16,b,base)
Michael Wolf23e55f92009-08-20 13:21:45 +0000133#define REST_VSR(n,b,base) li b,THREAD_VSR0+(16*(n)); LXVD2X(n,base,b)
Michael Neuling72ffff52008-06-25 14:07:18 +1000134#define REST_2VSRS(n,b,base) REST_VSR(n,b,base); REST_VSR(n+1,b,base)
135#define REST_4VSRS(n,b,base) REST_2VSRS(n,b,base); REST_2VSRS(n+2,b,base)
136#define REST_8VSRS(n,b,base) REST_4VSRS(n,b,base); REST_4VSRS(n+4,b,base)
137#define REST_16VSRS(n,b,base) REST_8VSRS(n,b,base); REST_8VSRS(n+8,b,base)
138#define REST_32VSRS(n,b,base) REST_16VSRS(n,b,base); REST_16VSRS(n+16,b,base)
139/* Save the upper 32 VSRs (32-63) in the thread VSX region (0-31) */
Michael Wolf23e55f92009-08-20 13:21:45 +0000140#define SAVE_VSRU(n,b,base) li b,THREAD_VR0+(16*(n)); STXVD2X(n+32,base,b)
Michael Neuling72ffff52008-06-25 14:07:18 +1000141#define SAVE_2VSRSU(n,b,base) SAVE_VSRU(n,b,base); SAVE_VSRU(n+1,b,base)
142#define SAVE_4VSRSU(n,b,base) SAVE_2VSRSU(n,b,base); SAVE_2VSRSU(n+2,b,base)
143#define SAVE_8VSRSU(n,b,base) SAVE_4VSRSU(n,b,base); SAVE_4VSRSU(n+4,b,base)
144#define SAVE_16VSRSU(n,b,base) SAVE_8VSRSU(n,b,base); SAVE_8VSRSU(n+8,b,base)
145#define SAVE_32VSRSU(n,b,base) SAVE_16VSRSU(n,b,base); SAVE_16VSRSU(n+16,b,base)
Michael Wolf23e55f92009-08-20 13:21:45 +0000146#define REST_VSRU(n,b,base) li b,THREAD_VR0+(16*(n)); LXVD2X(n+32,base,b)
Michael Neuling72ffff52008-06-25 14:07:18 +1000147#define REST_2VSRSU(n,b,base) REST_VSRU(n,b,base); REST_VSRU(n+1,b,base)
148#define REST_4VSRSU(n,b,base) REST_2VSRSU(n,b,base); REST_2VSRSU(n+2,b,base)
149#define REST_8VSRSU(n,b,base) REST_4VSRSU(n,b,base); REST_4VSRSU(n+4,b,base)
150#define REST_16VSRSU(n,b,base) REST_8VSRSU(n,b,base); REST_8VSRSU(n+8,b,base)
151#define REST_32VSRSU(n,b,base) REST_16VSRSU(n,b,base); REST_16VSRSU(n+16,b,base)
152
Linus Torvalds1da177e2005-04-16 15:20:36 -0700153#define SAVE_EVR(n,s,base) evmergehi s,s,n; stw s,THREAD_EVR0+4*(n)(base)
Kumar Gala5f7c6902005-09-09 15:02:25 -0500154#define SAVE_2EVRS(n,s,base) SAVE_EVR(n,s,base); SAVE_EVR(n+1,s,base)
155#define SAVE_4EVRS(n,s,base) SAVE_2EVRS(n,s,base); SAVE_2EVRS(n+2,s,base)
156#define SAVE_8EVRS(n,s,base) SAVE_4EVRS(n,s,base); SAVE_4EVRS(n+4,s,base)
157#define SAVE_16EVRS(n,s,base) SAVE_8EVRS(n,s,base); SAVE_8EVRS(n+8,s,base)
158#define SAVE_32EVRS(n,s,base) SAVE_16EVRS(n,s,base); SAVE_16EVRS(n+16,s,base)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159#define REST_EVR(n,s,base) lwz s,THREAD_EVR0+4*(n)(base); evmergelo n,s,n
Kumar Gala5f7c6902005-09-09 15:02:25 -0500160#define REST_2EVRS(n,s,base) REST_EVR(n,s,base); REST_EVR(n+1,s,base)
161#define REST_4EVRS(n,s,base) REST_2EVRS(n,s,base); REST_2EVRS(n+2,s,base)
162#define REST_8EVRS(n,s,base) REST_4EVRS(n,s,base); REST_4EVRS(n+4,s,base)
163#define REST_16EVRS(n,s,base) REST_8EVRS(n,s,base); REST_8EVRS(n+8,s,base)
164#define REST_32EVRS(n,s,base) REST_16EVRS(n,s,base); REST_16EVRS(n+16,s,base)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700165
Michael Ellerman8c716322005-10-24 15:07:27 +1000166/* Macros to adjust thread priority for hardware multithreading */
167#define HMT_VERY_LOW or 31,31,31 # very low priority
168#define HMT_LOW or 1,1,1
169#define HMT_MEDIUM_LOW or 6,6,6 # medium low priority
170#define HMT_MEDIUM or 2,2,2
171#define HMT_MEDIUM_HIGH or 5,5,5 # medium high priority
172#define HMT_HIGH or 3,3,3
Benjamin Herrenschmidt50fb8eb2011-01-12 17:41:28 +1100173#define HMT_EXTRA_HIGH or 7,7,7 # power7 only
Kumar Gala5f7c6902005-09-09 15:02:25 -0500174
Arnd Bergmann88ced032005-12-16 22:43:46 +0100175#ifdef __KERNEL__
Paul Mackerras40ef8cb2005-10-10 22:50:37 +1000176#ifdef CONFIG_PPC64
177
178#define XGLUE(a,b) a##b
179#define GLUE(a,b) XGLUE(a,b)
180
181#define _GLOBAL(name) \
182 .section ".text"; \
183 .align 2 ; \
184 .globl name; \
185 .globl GLUE(.,name); \
186 .section ".opd","aw"; \
187name: \
188 .quad GLUE(.,name); \
189 .quad .TOC.@tocbase; \
190 .quad 0; \
191 .previous; \
192 .type GLUE(.,name),@function; \
193GLUE(.,name):
194
Stephen Rothwellfc68e862007-08-22 13:44:58 +1000195#define _INIT_GLOBAL(name) \
Tim Abbott9203fc92009-04-27 14:02:24 -0400196 __REF; \
Stephen Rothwellfc68e862007-08-22 13:44:58 +1000197 .align 2 ; \
198 .globl name; \
199 .globl GLUE(.,name); \
200 .section ".opd","aw"; \
201name: \
202 .quad GLUE(.,name); \
203 .quad .TOC.@tocbase; \
204 .quad 0; \
205 .previous; \
206 .type GLUE(.,name),@function; \
207GLUE(.,name):
208
Paul Mackerras40ef8cb2005-10-10 22:50:37 +1000209#define _KPROBE(name) \
210 .section ".kprobes.text","a"; \
211 .align 2 ; \
212 .globl name; \
213 .globl GLUE(.,name); \
214 .section ".opd","aw"; \
215name: \
216 .quad GLUE(.,name); \
217 .quad .TOC.@tocbase; \
218 .quad 0; \
219 .previous; \
220 .type GLUE(.,name),@function; \
221GLUE(.,name):
222
223#define _STATIC(name) \
224 .section ".text"; \
225 .align 2 ; \
226 .section ".opd","aw"; \
227name: \
228 .quad GLUE(.,name); \
229 .quad .TOC.@tocbase; \
230 .quad 0; \
231 .previous; \
232 .type GLUE(.,name),@function; \
233GLUE(.,name):
234
Stephen Rothwellc40b91b2007-07-25 09:27:35 +1000235#define _INIT_STATIC(name) \
Tim Abbott9203fc92009-04-27 14:02:24 -0400236 __REF; \
Stephen Rothwellc40b91b2007-07-25 09:27:35 +1000237 .align 2 ; \
238 .section ".opd","aw"; \
239name: \
240 .quad GLUE(.,name); \
241 .quad .TOC.@tocbase; \
242 .quad 0; \
243 .previous; \
244 .type GLUE(.,name),@function; \
245GLUE(.,name):
246
Paul Mackerras40ef8cb2005-10-10 22:50:37 +1000247#else /* 32-bit */
248
Kumar Gala748a7682007-09-13 15:42:35 -0500249#define _ENTRY(n) \
250 .globl n; \
251n:
252
Paul Mackerras40ef8cb2005-10-10 22:50:37 +1000253#define _GLOBAL(n) \
254 .text; \
255 .stabs __stringify(n:F-1),N_FUN,0,0,n;\
256 .globl n; \
257n:
258
259#define _KPROBE(n) \
260 .section ".kprobes.text","a"; \
261 .globl n; \
262n:
263
264#endif
265
Kumar Gala5f7c6902005-09-09 15:02:25 -0500266/*
David Gibsone58c3492006-01-13 14:56:25 +1100267 * LOAD_REG_IMMEDIATE(rn, expr)
268 * Loads the value of the constant expression 'expr' into register 'rn'
269 * using immediate instructions only. Use this when it's important not
270 * to reference other data (i.e. on ppc64 when the TOC pointer is not
Paul Mackerrase31aa452008-08-30 11:41:12 +1000271 * valid) and when 'expr' is a constant or absolute address.
Kumar Gala5f7c6902005-09-09 15:02:25 -0500272 *
David Gibsone58c3492006-01-13 14:56:25 +1100273 * LOAD_REG_ADDR(rn, name)
274 * Loads the address of label 'name' into register 'rn'. Use this when
275 * you don't particularly need immediate instructions only, but you need
276 * the whole address in one register (e.g. it's a structure address and
277 * you want to access various offsets within it). On ppc32 this is
278 * identical to LOAD_REG_IMMEDIATE.
279 *
280 * LOAD_REG_ADDRBASE(rn, name)
281 * ADDROFF(name)
282 * LOAD_REG_ADDRBASE loads part of the address of label 'name' into
283 * register 'rn'. ADDROFF(name) returns the remainder of the address as
284 * a constant expression. ADDROFF(name) is a signed expression < 16 bits
285 * in size, so is suitable for use directly as an offset in load and store
286 * instructions. Use this when loading/storing a single word or less as:
287 * LOAD_REG_ADDRBASE(rX, name)
288 * ld rY,ADDROFF(name)(rX)
Kumar Gala5f7c6902005-09-09 15:02:25 -0500289 */
290#ifdef __powerpc64__
David Gibsone58c3492006-01-13 14:56:25 +1100291#define LOAD_REG_IMMEDIATE(reg,expr) \
292 lis (reg),(expr)@highest; \
293 ori (reg),(reg),(expr)@higher; \
294 rldicr (reg),(reg),32,31; \
295 oris (reg),(reg),(expr)@h; \
296 ori (reg),(reg),(expr)@l;
Kumar Gala5f7c6902005-09-09 15:02:25 -0500297
David Gibsone58c3492006-01-13 14:56:25 +1100298#define LOAD_REG_ADDR(reg,name) \
299 ld (reg),name@got(r2)
Kumar Gala5f7c6902005-09-09 15:02:25 -0500300
David Gibsone58c3492006-01-13 14:56:25 +1100301#define LOAD_REG_ADDRBASE(reg,name) LOAD_REG_ADDR(reg,name)
302#define ADDROFF(name) 0
Paul Mackerrasb85a0462005-10-06 10:59:19 +1000303
Paul Mackerrasf78541d2005-10-28 22:53:37 +1000304/* offsets for stack frame layout */
305#define LRSAVE 16
Paul Mackerrasb85a0462005-10-06 10:59:19 +1000306
307#else /* 32-bit */
Stephen Rothwell70620182005-10-12 17:44:55 +1000308
David Gibsone58c3492006-01-13 14:56:25 +1100309#define LOAD_REG_IMMEDIATE(reg,expr) \
310 lis (reg),(expr)@ha; \
311 addi (reg),(reg),(expr)@l;
Paul Mackerrasb85a0462005-10-06 10:59:19 +1000312
David Gibsone58c3492006-01-13 14:56:25 +1100313#define LOAD_REG_ADDR(reg,name) LOAD_REG_IMMEDIATE(reg, name)
314
315#define LOAD_REG_ADDRBASE(reg, name) lis (reg),name@ha
316#define ADDROFF(name) name@l
Paul Mackerrasb85a0462005-10-06 10:59:19 +1000317
Paul Mackerrasf78541d2005-10-28 22:53:37 +1000318/* offsets for stack frame layout */
319#define LRSAVE 4
Paul Mackerrasb85a0462005-10-06 10:59:19 +1000320
Kumar Gala5f7c6902005-09-09 15:02:25 -0500321#endif
322
323/* various errata or part fixups */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700324#ifdef CONFIG_PPC601_SYNC_FIX
325#define SYNC \
326BEGIN_FTR_SECTION \
327 sync; \
328 isync; \
329END_FTR_SECTION_IFSET(CPU_FTR_601)
330#define SYNC_601 \
331BEGIN_FTR_SECTION \
332 sync; \
333END_FTR_SECTION_IFSET(CPU_FTR_601)
334#define ISYNC_601 \
335BEGIN_FTR_SECTION \
336 isync; \
337END_FTR_SECTION_IFSET(CPU_FTR_601)
338#else
339#define SYNC
340#define SYNC_601
341#define ISYNC_601
342#endif
343
Benjamin Herrenschmidt859deea2006-10-20 14:37:05 +1000344#ifdef CONFIG_PPC_CELL
345#define MFTB(dest) \
34690: mftb dest; \
347BEGIN_FTR_SECTION_NESTED(96); \
348 cmpwi dest,0; \
349 beq- 90b; \
350END_FTR_SECTION_NESTED(CPU_FTR_CELL_TB_BUG, CPU_FTR_CELL_TB_BUG, 96)
351#else
352#define MFTB(dest) mftb dest
353#endif
Kumar Gala5f7c6902005-09-09 15:02:25 -0500354
Linus Torvalds1da177e2005-04-16 15:20:36 -0700355#ifndef CONFIG_SMP
356#define TLBSYNC
357#else /* CONFIG_SMP */
358/* tlbsync is not implemented on 601 */
359#define TLBSYNC \
360BEGIN_FTR_SECTION \
361 tlbsync; \
362 sync; \
363END_FTR_SECTION_IFCLR(CPU_FTR_601)
364#endif
365
Kumar Gala5f7c6902005-09-09 15:02:25 -0500366
Linus Torvalds1da177e2005-04-16 15:20:36 -0700367/*
368 * This instruction is not implemented on the PPC 603 or 601; however, on
369 * the 403GCX and 405GP tlbia IS defined and tlbie is not.
370 * All of these instructions exist in the 8xx, they have magical powers,
371 * and they must be used.
372 */
373
374#if !defined(CONFIG_4xx) && !defined(CONFIG_8xx)
375#define tlbia \
376 li r4,1024; \
377 mtctr r4; \
378 lis r4,KERNELBASE@h; \
3790: tlbie r4; \
380 addi r4,r4,0x1000; \
381 bdnz 0b
382#endif
383
Kumar Gala5f7c6902005-09-09 15:02:25 -0500384
Kumar Gala5f7c6902005-09-09 15:02:25 -0500385#ifdef CONFIG_IBM440EP_ERR42
386#define PPC440EP_ERR42 isync
387#else
388#define PPC440EP_ERR42
389#endif
390
Benjamin Herrenschmidt44c58cc2009-07-23 23:15:20 +0000391/*
392 * toreal/fromreal/tophys/tovirt macros. 32-bit BookE makes them
393 * keep the address intact to be compatible with code shared with
394 * 32-bit classic.
395 *
396 * On the other hand, I find it useful to have them behave as expected
397 * by their name (ie always do the addition) on 64-bit BookE
398 */
399#if defined(CONFIG_BOOKE) && !defined(CONFIG_PPC64)
Paul Mackerras63162222005-10-27 22:44:39 +1000400#define toreal(rd)
401#define fromreal(rd)
402
Roland McGrath2ca76332008-05-11 10:40:47 +1000403/*
404 * We use addis to ensure compatibility with the "classic" ppc versions of
405 * these macros, which use rs = 0 to get the tophys offset in rd, rather than
406 * converting the address in r0, and so this version has to do that too
407 * (i.e. set register rd to 0 when rs == 0).
408 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700409#define tophys(rd,rs) \
410 addis rd,rs,0
411
412#define tovirt(rd,rs) \
413 addis rd,rs,0
414
Kumar Gala5f7c6902005-09-09 15:02:25 -0500415#elif defined(CONFIG_PPC64)
Paul Mackerras63162222005-10-27 22:44:39 +1000416#define toreal(rd) /* we can access c000... in real mode */
417#define fromreal(rd)
418
Kumar Gala5f7c6902005-09-09 15:02:25 -0500419#define tophys(rd,rs) \
Paul Mackerras63162222005-10-27 22:44:39 +1000420 clrldi rd,rs,2
Kumar Gala5f7c6902005-09-09 15:02:25 -0500421
422#define tovirt(rd,rs) \
Paul Mackerras63162222005-10-27 22:44:39 +1000423 rotldi rd,rs,16; \
424 ori rd,rd,((KERNELBASE>>48)&0xFFFF);\
425 rotldi rd,rd,48
Kumar Gala5f7c6902005-09-09 15:02:25 -0500426#else
Linus Torvalds1da177e2005-04-16 15:20:36 -0700427/*
428 * On APUS (Amiga PowerPC cpu upgrade board), we don't know the
429 * physical base address of RAM at compile time.
430 */
Paul Mackerras63162222005-10-27 22:44:39 +1000431#define toreal(rd) tophys(rd,rd)
432#define fromreal(rd) tovirt(rd,rd)
433
Linus Torvalds1da177e2005-04-16 15:20:36 -0700434#define tophys(rd,rs) \
Dale Farnsworthccdcef72008-12-17 10:09:13 +00004350: addis rd,rs,-PAGE_OFFSET@h; \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700436 .section ".vtop_fixup","aw"; \
437 .align 1; \
438 .long 0b; \
439 .previous
440
441#define tovirt(rd,rs) \
Dale Farnsworthccdcef72008-12-17 10:09:13 +00004420: addis rd,rs,PAGE_OFFSET@h; \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700443 .section ".ptov_fixup","aw"; \
444 .align 1; \
445 .long 0b; \
446 .previous
Kumar Gala5f7c6902005-09-09 15:02:25 -0500447#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700448
Benjamin Herrenschmidt44c58cc2009-07-23 23:15:20 +0000449#ifdef CONFIG_PPC_BOOK3S_64
Paul Mackerras40ef8cb2005-10-10 22:50:37 +1000450#define RFI rfid
451#define MTMSRD(r) mtmsrd r
Linus Torvalds1da177e2005-04-16 15:20:36 -0700452#else
453#define FIX_SRR1(ra, rb)
454#ifndef CONFIG_40x
455#define RFI rfi
456#else
457#define RFI rfi; b . /* Prevent prefetch past rfi */
458#endif
459#define MTMSRD(r) mtmsr r
460#define CLR_TOP32(r)
Matt Porterc9cf73a2005-07-31 22:34:52 -0700461#endif
462
Arnd Bergmann88ced032005-12-16 22:43:46 +0100463#endif /* __KERNEL__ */
464
Linus Torvalds1da177e2005-04-16 15:20:36 -0700465/* The boring bits... */
466
467/* Condition Register Bit Fields */
468
469#define cr0 0
470#define cr1 1
471#define cr2 2
472#define cr3 3
473#define cr4 4
474#define cr5 5
475#define cr6 6
476#define cr7 7
477
478
479/* General Purpose Registers (GPRs) */
480
481#define r0 0
482#define r1 1
483#define r2 2
484#define r3 3
485#define r4 4
486#define r5 5
487#define r6 6
488#define r7 7
489#define r8 8
490#define r9 9
491#define r10 10
492#define r11 11
493#define r12 12
494#define r13 13
495#define r14 14
496#define r15 15
497#define r16 16
498#define r17 17
499#define r18 18
500#define r19 19
501#define r20 20
502#define r21 21
503#define r22 22
504#define r23 23
505#define r24 24
506#define r25 25
507#define r26 26
508#define r27 27
509#define r28 28
510#define r29 29
511#define r30 30
512#define r31 31
513
514
515/* Floating Point Registers (FPRs) */
516
517#define fr0 0
518#define fr1 1
519#define fr2 2
520#define fr3 3
521#define fr4 4
522#define fr5 5
523#define fr6 6
524#define fr7 7
525#define fr8 8
526#define fr9 9
527#define fr10 10
528#define fr11 11
529#define fr12 12
530#define fr13 13
531#define fr14 14
532#define fr15 15
533#define fr16 16
534#define fr17 17
535#define fr18 18
536#define fr19 19
537#define fr20 20
538#define fr21 21
539#define fr22 22
540#define fr23 23
541#define fr24 24
542#define fr25 25
543#define fr26 26
544#define fr27 27
545#define fr28 28
546#define fr29 29
547#define fr30 30
548#define fr31 31
549
Kumar Gala5f7c6902005-09-09 15:02:25 -0500550/* AltiVec Registers (VPRs) */
551
Linus Torvalds1da177e2005-04-16 15:20:36 -0700552#define vr0 0
553#define vr1 1
554#define vr2 2
555#define vr3 3
556#define vr4 4
557#define vr5 5
558#define vr6 6
559#define vr7 7
560#define vr8 8
561#define vr9 9
562#define vr10 10
563#define vr11 11
564#define vr12 12
565#define vr13 13
566#define vr14 14
567#define vr15 15
568#define vr16 16
569#define vr17 17
570#define vr18 18
571#define vr19 19
572#define vr20 20
573#define vr21 21
574#define vr22 22
575#define vr23 23
576#define vr24 24
577#define vr25 25
578#define vr26 26
579#define vr27 27
580#define vr28 28
581#define vr29 29
582#define vr30 30
583#define vr31 31
584
Michael Neuling72ffff52008-06-25 14:07:18 +1000585/* VSX Registers (VSRs) */
586
587#define vsr0 0
588#define vsr1 1
589#define vsr2 2
590#define vsr3 3
591#define vsr4 4
592#define vsr5 5
593#define vsr6 6
594#define vsr7 7
595#define vsr8 8
596#define vsr9 9
597#define vsr10 10
598#define vsr11 11
599#define vsr12 12
600#define vsr13 13
601#define vsr14 14
602#define vsr15 15
603#define vsr16 16
604#define vsr17 17
605#define vsr18 18
606#define vsr19 19
607#define vsr20 20
608#define vsr21 21
609#define vsr22 22
610#define vsr23 23
611#define vsr24 24
612#define vsr25 25
613#define vsr26 26
614#define vsr27 27
615#define vsr28 28
616#define vsr29 29
617#define vsr30 30
618#define vsr31 31
619#define vsr32 32
620#define vsr33 33
621#define vsr34 34
622#define vsr35 35
623#define vsr36 36
624#define vsr37 37
625#define vsr38 38
626#define vsr39 39
627#define vsr40 40
628#define vsr41 41
629#define vsr42 42
630#define vsr43 43
631#define vsr44 44
632#define vsr45 45
633#define vsr46 46
634#define vsr47 47
635#define vsr48 48
636#define vsr49 49
637#define vsr50 50
638#define vsr51 51
639#define vsr52 52
640#define vsr53 53
641#define vsr54 54
642#define vsr55 55
643#define vsr56 56
644#define vsr57 57
645#define vsr58 58
646#define vsr59 59
647#define vsr60 60
648#define vsr61 61
649#define vsr62 62
650#define vsr63 63
651
Kumar Gala5f7c6902005-09-09 15:02:25 -0500652/* SPE Registers (EVPRs) */
653
Linus Torvalds1da177e2005-04-16 15:20:36 -0700654#define evr0 0
655#define evr1 1
656#define evr2 2
657#define evr3 3
658#define evr4 4
659#define evr5 5
660#define evr6 6
661#define evr7 7
662#define evr8 8
663#define evr9 9
664#define evr10 10
665#define evr11 11
666#define evr12 12
667#define evr13 13
668#define evr14 14
669#define evr15 15
670#define evr16 16
671#define evr17 17
672#define evr18 18
673#define evr19 19
674#define evr20 20
675#define evr21 21
676#define evr22 22
677#define evr23 23
678#define evr24 24
679#define evr25 25
680#define evr26 26
681#define evr27 27
682#define evr28 28
683#define evr29 29
684#define evr30 30
685#define evr31 31
686
687/* some stab codes */
688#define N_FUN 36
689#define N_RSYM 64
690#define N_SLINE 68
691#define N_SO 100
Kumar Gala5f7c6902005-09-09 15:02:25 -0500692
Kumar Gala5f7c6902005-09-09 15:02:25 -0500693#endif /* __ASSEMBLY__ */
694
695#endif /* _ASM_POWERPC_PPC_ASM_H */