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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
Kumar Gala5f7c6902005-09-09 15:02:25 -0500173
Arnd Bergmann88ced032005-12-16 22:43:46 +0100174#ifdef __KERNEL__
Paul Mackerras40ef8cb2005-10-10 22:50:37 +1000175#ifdef CONFIG_PPC64
176
177#define XGLUE(a,b) a##b
178#define GLUE(a,b) XGLUE(a,b)
179
180#define _GLOBAL(name) \
181 .section ".text"; \
182 .align 2 ; \
183 .globl name; \
184 .globl GLUE(.,name); \
185 .section ".opd","aw"; \
186name: \
187 .quad GLUE(.,name); \
188 .quad .TOC.@tocbase; \
189 .quad 0; \
190 .previous; \
191 .type GLUE(.,name),@function; \
192GLUE(.,name):
193
Stephen Rothwellfc68e862007-08-22 13:44:58 +1000194#define _INIT_GLOBAL(name) \
Tim Abbott9203fc92009-04-27 14:02:24 -0400195 __REF; \
Stephen Rothwellfc68e862007-08-22 13:44:58 +1000196 .align 2 ; \
197 .globl name; \
198 .globl GLUE(.,name); \
199 .section ".opd","aw"; \
200name: \
201 .quad GLUE(.,name); \
202 .quad .TOC.@tocbase; \
203 .quad 0; \
204 .previous; \
205 .type GLUE(.,name),@function; \
206GLUE(.,name):
207
Paul Mackerras40ef8cb2005-10-10 22:50:37 +1000208#define _KPROBE(name) \
209 .section ".kprobes.text","a"; \
210 .align 2 ; \
211 .globl name; \
212 .globl GLUE(.,name); \
213 .section ".opd","aw"; \
214name: \
215 .quad GLUE(.,name); \
216 .quad .TOC.@tocbase; \
217 .quad 0; \
218 .previous; \
219 .type GLUE(.,name),@function; \
220GLUE(.,name):
221
222#define _STATIC(name) \
223 .section ".text"; \
224 .align 2 ; \
225 .section ".opd","aw"; \
226name: \
227 .quad GLUE(.,name); \
228 .quad .TOC.@tocbase; \
229 .quad 0; \
230 .previous; \
231 .type GLUE(.,name),@function; \
232GLUE(.,name):
233
Stephen Rothwellc40b91b2007-07-25 09:27:35 +1000234#define _INIT_STATIC(name) \
Tim Abbott9203fc92009-04-27 14:02:24 -0400235 __REF; \
Stephen Rothwellc40b91b2007-07-25 09:27:35 +1000236 .align 2 ; \
237 .section ".opd","aw"; \
238name: \
239 .quad GLUE(.,name); \
240 .quad .TOC.@tocbase; \
241 .quad 0; \
242 .previous; \
243 .type GLUE(.,name),@function; \
244GLUE(.,name):
245
Paul Mackerras40ef8cb2005-10-10 22:50:37 +1000246#else /* 32-bit */
247
Kumar Gala748a7682007-09-13 15:42:35 -0500248#define _ENTRY(n) \
249 .globl n; \
250n:
251
Paul Mackerras40ef8cb2005-10-10 22:50:37 +1000252#define _GLOBAL(n) \
253 .text; \
254 .stabs __stringify(n:F-1),N_FUN,0,0,n;\
255 .globl n; \
256n:
257
258#define _KPROBE(n) \
259 .section ".kprobes.text","a"; \
260 .globl n; \
261n:
262
263#endif
264
Kumar Gala5f7c6902005-09-09 15:02:25 -0500265/*
David Gibsone58c3492006-01-13 14:56:25 +1100266 * LOAD_REG_IMMEDIATE(rn, expr)
267 * Loads the value of the constant expression 'expr' into register 'rn'
268 * using immediate instructions only. Use this when it's important not
269 * to reference other data (i.e. on ppc64 when the TOC pointer is not
Paul Mackerrase31aa452008-08-30 11:41:12 +1000270 * valid) and when 'expr' is a constant or absolute address.
Kumar Gala5f7c6902005-09-09 15:02:25 -0500271 *
David Gibsone58c3492006-01-13 14:56:25 +1100272 * LOAD_REG_ADDR(rn, name)
273 * Loads the address of label 'name' into register 'rn'. Use this when
274 * you don't particularly need immediate instructions only, but you need
275 * the whole address in one register (e.g. it's a structure address and
276 * you want to access various offsets within it). On ppc32 this is
277 * identical to LOAD_REG_IMMEDIATE.
278 *
279 * LOAD_REG_ADDRBASE(rn, name)
280 * ADDROFF(name)
281 * LOAD_REG_ADDRBASE loads part of the address of label 'name' into
282 * register 'rn'. ADDROFF(name) returns the remainder of the address as
283 * a constant expression. ADDROFF(name) is a signed expression < 16 bits
284 * in size, so is suitable for use directly as an offset in load and store
285 * instructions. Use this when loading/storing a single word or less as:
286 * LOAD_REG_ADDRBASE(rX, name)
287 * ld rY,ADDROFF(name)(rX)
Kumar Gala5f7c6902005-09-09 15:02:25 -0500288 */
289#ifdef __powerpc64__
David Gibsone58c3492006-01-13 14:56:25 +1100290#define LOAD_REG_IMMEDIATE(reg,expr) \
291 lis (reg),(expr)@highest; \
292 ori (reg),(reg),(expr)@higher; \
293 rldicr (reg),(reg),32,31; \
294 oris (reg),(reg),(expr)@h; \
295 ori (reg),(reg),(expr)@l;
Kumar Gala5f7c6902005-09-09 15:02:25 -0500296
David Gibsone58c3492006-01-13 14:56:25 +1100297#define LOAD_REG_ADDR(reg,name) \
298 ld (reg),name@got(r2)
Kumar Gala5f7c6902005-09-09 15:02:25 -0500299
David Gibsone58c3492006-01-13 14:56:25 +1100300#define LOAD_REG_ADDRBASE(reg,name) LOAD_REG_ADDR(reg,name)
301#define ADDROFF(name) 0
Paul Mackerrasb85a0462005-10-06 10:59:19 +1000302
Paul Mackerrasf78541dc2005-10-28 22:53:37 +1000303/* offsets for stack frame layout */
304#define LRSAVE 16
Paul Mackerrasb85a0462005-10-06 10:59:19 +1000305
306#else /* 32-bit */
Stephen Rothwell70620182005-10-12 17:44:55 +1000307
David Gibsone58c3492006-01-13 14:56:25 +1100308#define LOAD_REG_IMMEDIATE(reg,expr) \
309 lis (reg),(expr)@ha; \
310 addi (reg),(reg),(expr)@l;
Paul Mackerrasb85a0462005-10-06 10:59:19 +1000311
David Gibsone58c3492006-01-13 14:56:25 +1100312#define LOAD_REG_ADDR(reg,name) LOAD_REG_IMMEDIATE(reg, name)
313
314#define LOAD_REG_ADDRBASE(reg, name) lis (reg),name@ha
315#define ADDROFF(name) name@l
Paul Mackerrasb85a0462005-10-06 10:59:19 +1000316
Paul Mackerrasf78541dc2005-10-28 22:53:37 +1000317/* offsets for stack frame layout */
318#define LRSAVE 4
Paul Mackerrasb85a0462005-10-06 10:59:19 +1000319
Kumar Gala5f7c6902005-09-09 15:02:25 -0500320#endif
321
322/* various errata or part fixups */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700323#ifdef CONFIG_PPC601_SYNC_FIX
324#define SYNC \
325BEGIN_FTR_SECTION \
326 sync; \
327 isync; \
328END_FTR_SECTION_IFSET(CPU_FTR_601)
329#define SYNC_601 \
330BEGIN_FTR_SECTION \
331 sync; \
332END_FTR_SECTION_IFSET(CPU_FTR_601)
333#define ISYNC_601 \
334BEGIN_FTR_SECTION \
335 isync; \
336END_FTR_SECTION_IFSET(CPU_FTR_601)
337#else
338#define SYNC
339#define SYNC_601
340#define ISYNC_601
341#endif
342
Benjamin Herrenschmidt859deea2006-10-20 14:37:05 +1000343#ifdef CONFIG_PPC_CELL
344#define MFTB(dest) \
34590: mftb dest; \
346BEGIN_FTR_SECTION_NESTED(96); \
347 cmpwi dest,0; \
348 beq- 90b; \
349END_FTR_SECTION_NESTED(CPU_FTR_CELL_TB_BUG, CPU_FTR_CELL_TB_BUG, 96)
350#else
351#define MFTB(dest) mftb dest
352#endif
Kumar Gala5f7c6902005-09-09 15:02:25 -0500353
Linus Torvalds1da177e2005-04-16 15:20:36 -0700354#ifndef CONFIG_SMP
355#define TLBSYNC
356#else /* CONFIG_SMP */
357/* tlbsync is not implemented on 601 */
358#define TLBSYNC \
359BEGIN_FTR_SECTION \
360 tlbsync; \
361 sync; \
362END_FTR_SECTION_IFCLR(CPU_FTR_601)
363#endif
364
Kumar Gala5f7c6902005-09-09 15:02:25 -0500365
Linus Torvalds1da177e2005-04-16 15:20:36 -0700366/*
367 * This instruction is not implemented on the PPC 603 or 601; however, on
368 * the 403GCX and 405GP tlbia IS defined and tlbie is not.
369 * All of these instructions exist in the 8xx, they have magical powers,
370 * and they must be used.
371 */
372
373#if !defined(CONFIG_4xx) && !defined(CONFIG_8xx)
374#define tlbia \
375 li r4,1024; \
376 mtctr r4; \
377 lis r4,KERNELBASE@h; \
3780: tlbie r4; \
379 addi r4,r4,0x1000; \
380 bdnz 0b
381#endif
382
Kumar Gala5f7c6902005-09-09 15:02:25 -0500383
Kumar Gala5f7c6902005-09-09 15:02:25 -0500384#ifdef CONFIG_IBM440EP_ERR42
385#define PPC440EP_ERR42 isync
386#else
387#define PPC440EP_ERR42
388#endif
389
Benjamin Herrenschmidt44c58cc2009-07-23 23:15:20 +0000390/*
391 * toreal/fromreal/tophys/tovirt macros. 32-bit BookE makes them
392 * keep the address intact to be compatible with code shared with
393 * 32-bit classic.
394 *
395 * On the other hand, I find it useful to have them behave as expected
396 * by their name (ie always do the addition) on 64-bit BookE
397 */
398#if defined(CONFIG_BOOKE) && !defined(CONFIG_PPC64)
Paul Mackerras63162222005-10-27 22:44:39 +1000399#define toreal(rd)
400#define fromreal(rd)
401
Roland McGrath2ca76332008-05-11 10:40:47 +1000402/*
403 * We use addis to ensure compatibility with the "classic" ppc versions of
404 * these macros, which use rs = 0 to get the tophys offset in rd, rather than
405 * converting the address in r0, and so this version has to do that too
406 * (i.e. set register rd to 0 when rs == 0).
407 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700408#define tophys(rd,rs) \
409 addis rd,rs,0
410
411#define tovirt(rd,rs) \
412 addis rd,rs,0
413
Kumar Gala5f7c6902005-09-09 15:02:25 -0500414#elif defined(CONFIG_PPC64)
Paul Mackerras63162222005-10-27 22:44:39 +1000415#define toreal(rd) /* we can access c000... in real mode */
416#define fromreal(rd)
417
Kumar Gala5f7c6902005-09-09 15:02:25 -0500418#define tophys(rd,rs) \
Paul Mackerras63162222005-10-27 22:44:39 +1000419 clrldi rd,rs,2
Kumar Gala5f7c6902005-09-09 15:02:25 -0500420
421#define tovirt(rd,rs) \
Paul Mackerras63162222005-10-27 22:44:39 +1000422 rotldi rd,rs,16; \
423 ori rd,rd,((KERNELBASE>>48)&0xFFFF);\
424 rotldi rd,rd,48
Kumar Gala5f7c6902005-09-09 15:02:25 -0500425#else
Linus Torvalds1da177e2005-04-16 15:20:36 -0700426/*
427 * On APUS (Amiga PowerPC cpu upgrade board), we don't know the
428 * physical base address of RAM at compile time.
429 */
Paul Mackerras63162222005-10-27 22:44:39 +1000430#define toreal(rd) tophys(rd,rd)
431#define fromreal(rd) tovirt(rd,rd)
432
Linus Torvalds1da177e2005-04-16 15:20:36 -0700433#define tophys(rd,rs) \
Dale Farnsworthccdcef72008-12-17 10:09:13 +00004340: addis rd,rs,-PAGE_OFFSET@h; \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700435 .section ".vtop_fixup","aw"; \
436 .align 1; \
437 .long 0b; \
438 .previous
439
440#define tovirt(rd,rs) \
Dale Farnsworthccdcef72008-12-17 10:09:13 +00004410: addis rd,rs,PAGE_OFFSET@h; \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700442 .section ".ptov_fixup","aw"; \
443 .align 1; \
444 .long 0b; \
445 .previous
Kumar Gala5f7c6902005-09-09 15:02:25 -0500446#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700447
Benjamin Herrenschmidt44c58cc2009-07-23 23:15:20 +0000448#ifdef CONFIG_PPC_BOOK3S_64
Paul Mackerras40ef8cb2005-10-10 22:50:37 +1000449#define RFI rfid
450#define MTMSRD(r) mtmsrd r
Linus Torvalds1da177e2005-04-16 15:20:36 -0700451#else
452#define FIX_SRR1(ra, rb)
453#ifndef CONFIG_40x
454#define RFI rfi
455#else
456#define RFI rfi; b . /* Prevent prefetch past rfi */
457#endif
458#define MTMSRD(r) mtmsr r
459#define CLR_TOP32(r)
Matt Porterc9cf73a2005-07-31 22:34:52 -0700460#endif
461
Arnd Bergmann88ced032005-12-16 22:43:46 +0100462#endif /* __KERNEL__ */
463
Linus Torvalds1da177e2005-04-16 15:20:36 -0700464/* The boring bits... */
465
466/* Condition Register Bit Fields */
467
468#define cr0 0
469#define cr1 1
470#define cr2 2
471#define cr3 3
472#define cr4 4
473#define cr5 5
474#define cr6 6
475#define cr7 7
476
477
478/* General Purpose Registers (GPRs) */
479
480#define r0 0
481#define r1 1
482#define r2 2
483#define r3 3
484#define r4 4
485#define r5 5
486#define r6 6
487#define r7 7
488#define r8 8
489#define r9 9
490#define r10 10
491#define r11 11
492#define r12 12
493#define r13 13
494#define r14 14
495#define r15 15
496#define r16 16
497#define r17 17
498#define r18 18
499#define r19 19
500#define r20 20
501#define r21 21
502#define r22 22
503#define r23 23
504#define r24 24
505#define r25 25
506#define r26 26
507#define r27 27
508#define r28 28
509#define r29 29
510#define r30 30
511#define r31 31
512
513
514/* Floating Point Registers (FPRs) */
515
516#define fr0 0
517#define fr1 1
518#define fr2 2
519#define fr3 3
520#define fr4 4
521#define fr5 5
522#define fr6 6
523#define fr7 7
524#define fr8 8
525#define fr9 9
526#define fr10 10
527#define fr11 11
528#define fr12 12
529#define fr13 13
530#define fr14 14
531#define fr15 15
532#define fr16 16
533#define fr17 17
534#define fr18 18
535#define fr19 19
536#define fr20 20
537#define fr21 21
538#define fr22 22
539#define fr23 23
540#define fr24 24
541#define fr25 25
542#define fr26 26
543#define fr27 27
544#define fr28 28
545#define fr29 29
546#define fr30 30
547#define fr31 31
548
Kumar Gala5f7c6902005-09-09 15:02:25 -0500549/* AltiVec Registers (VPRs) */
550
Linus Torvalds1da177e2005-04-16 15:20:36 -0700551#define vr0 0
552#define vr1 1
553#define vr2 2
554#define vr3 3
555#define vr4 4
556#define vr5 5
557#define vr6 6
558#define vr7 7
559#define vr8 8
560#define vr9 9
561#define vr10 10
562#define vr11 11
563#define vr12 12
564#define vr13 13
565#define vr14 14
566#define vr15 15
567#define vr16 16
568#define vr17 17
569#define vr18 18
570#define vr19 19
571#define vr20 20
572#define vr21 21
573#define vr22 22
574#define vr23 23
575#define vr24 24
576#define vr25 25
577#define vr26 26
578#define vr27 27
579#define vr28 28
580#define vr29 29
581#define vr30 30
582#define vr31 31
583
Michael Neuling72ffff52008-06-25 14:07:18 +1000584/* VSX Registers (VSRs) */
585
586#define vsr0 0
587#define vsr1 1
588#define vsr2 2
589#define vsr3 3
590#define vsr4 4
591#define vsr5 5
592#define vsr6 6
593#define vsr7 7
594#define vsr8 8
595#define vsr9 9
596#define vsr10 10
597#define vsr11 11
598#define vsr12 12
599#define vsr13 13
600#define vsr14 14
601#define vsr15 15
602#define vsr16 16
603#define vsr17 17
604#define vsr18 18
605#define vsr19 19
606#define vsr20 20
607#define vsr21 21
608#define vsr22 22
609#define vsr23 23
610#define vsr24 24
611#define vsr25 25
612#define vsr26 26
613#define vsr27 27
614#define vsr28 28
615#define vsr29 29
616#define vsr30 30
617#define vsr31 31
618#define vsr32 32
619#define vsr33 33
620#define vsr34 34
621#define vsr35 35
622#define vsr36 36
623#define vsr37 37
624#define vsr38 38
625#define vsr39 39
626#define vsr40 40
627#define vsr41 41
628#define vsr42 42
629#define vsr43 43
630#define vsr44 44
631#define vsr45 45
632#define vsr46 46
633#define vsr47 47
634#define vsr48 48
635#define vsr49 49
636#define vsr50 50
637#define vsr51 51
638#define vsr52 52
639#define vsr53 53
640#define vsr54 54
641#define vsr55 55
642#define vsr56 56
643#define vsr57 57
644#define vsr58 58
645#define vsr59 59
646#define vsr60 60
647#define vsr61 61
648#define vsr62 62
649#define vsr63 63
650
Kumar Gala5f7c6902005-09-09 15:02:25 -0500651/* SPE Registers (EVPRs) */
652
Linus Torvalds1da177e2005-04-16 15:20:36 -0700653#define evr0 0
654#define evr1 1
655#define evr2 2
656#define evr3 3
657#define evr4 4
658#define evr5 5
659#define evr6 6
660#define evr7 7
661#define evr8 8
662#define evr9 9
663#define evr10 10
664#define evr11 11
665#define evr12 12
666#define evr13 13
667#define evr14 14
668#define evr15 15
669#define evr16 16
670#define evr17 17
671#define evr18 18
672#define evr19 19
673#define evr20 20
674#define evr21 21
675#define evr22 22
676#define evr23 23
677#define evr24 24
678#define evr25 25
679#define evr26 26
680#define evr27 27
681#define evr28 28
682#define evr29 29
683#define evr30 30
684#define evr31 31
685
686/* some stab codes */
687#define N_FUN 36
688#define N_RSYM 64
689#define N_SLINE 68
690#define N_SO 100
Kumar Gala5f7c6902005-09-09 15:02:25 -0500691
Kumar Gala5f7c6902005-09-09 15:02:25 -0500692#endif /* __ASSEMBLY__ */
693
694#endif /* _ASM_POWERPC_PPC_ASM_H */