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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
Scott Woodc51584d2011-06-14 18:34:27 -0500153/*
154 * b = base register for addressing, o = base offset from register of 1st EVR
155 * n = first EVR, s = scratch
156 */
157#define SAVE_EVR(n,s,b,o) evmergehi s,s,n; stw s,o+4*(n)(b)
158#define SAVE_2EVRS(n,s,b,o) SAVE_EVR(n,s,b,o); SAVE_EVR(n+1,s,b,o)
159#define SAVE_4EVRS(n,s,b,o) SAVE_2EVRS(n,s,b,o); SAVE_2EVRS(n+2,s,b,o)
160#define SAVE_8EVRS(n,s,b,o) SAVE_4EVRS(n,s,b,o); SAVE_4EVRS(n+4,s,b,o)
161#define SAVE_16EVRS(n,s,b,o) SAVE_8EVRS(n,s,b,o); SAVE_8EVRS(n+8,s,b,o)
162#define SAVE_32EVRS(n,s,b,o) SAVE_16EVRS(n,s,b,o); SAVE_16EVRS(n+16,s,b,o)
163#define REST_EVR(n,s,b,o) lwz s,o+4*(n)(b); evmergelo n,s,n
164#define REST_2EVRS(n,s,b,o) REST_EVR(n,s,b,o); REST_EVR(n+1,s,b,o)
165#define REST_4EVRS(n,s,b,o) REST_2EVRS(n,s,b,o); REST_2EVRS(n+2,s,b,o)
166#define REST_8EVRS(n,s,b,o) REST_4EVRS(n,s,b,o); REST_4EVRS(n+4,s,b,o)
167#define REST_16EVRS(n,s,b,o) REST_8EVRS(n,s,b,o); REST_8EVRS(n+8,s,b,o)
168#define REST_32EVRS(n,s,b,o) REST_16EVRS(n,s,b,o); REST_16EVRS(n+16,s,b,o)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700169
Michael Ellerman8c716322005-10-24 15:07:27 +1000170/* Macros to adjust thread priority for hardware multithreading */
171#define HMT_VERY_LOW or 31,31,31 # very low priority
172#define HMT_LOW or 1,1,1
173#define HMT_MEDIUM_LOW or 6,6,6 # medium low priority
174#define HMT_MEDIUM or 2,2,2
175#define HMT_MEDIUM_HIGH or 5,5,5 # medium high priority
176#define HMT_HIGH or 3,3,3
Benjamin Herrenschmidt50fb8eb2011-01-12 17:41:28 +1100177#define HMT_EXTRA_HIGH or 7,7,7 # power7 only
Kumar Gala5f7c6902005-09-09 15:02:25 -0500178
Arnd Bergmann88ced032005-12-16 22:43:46 +0100179#ifdef __KERNEL__
Paul Mackerras40ef8cb2005-10-10 22:50:37 +1000180#ifdef CONFIG_PPC64
181
182#define XGLUE(a,b) a##b
183#define GLUE(a,b) XGLUE(a,b)
184
185#define _GLOBAL(name) \
186 .section ".text"; \
187 .align 2 ; \
188 .globl name; \
189 .globl GLUE(.,name); \
190 .section ".opd","aw"; \
191name: \
192 .quad GLUE(.,name); \
193 .quad .TOC.@tocbase; \
194 .quad 0; \
195 .previous; \
196 .type GLUE(.,name),@function; \
197GLUE(.,name):
198
Stephen Rothwellfc68e862007-08-22 13:44:58 +1000199#define _INIT_GLOBAL(name) \
Tim Abbott9203fc92009-04-27 14:02:24 -0400200 __REF; \
Stephen Rothwellfc68e862007-08-22 13:44:58 +1000201 .align 2 ; \
202 .globl name; \
203 .globl GLUE(.,name); \
204 .section ".opd","aw"; \
205name: \
206 .quad GLUE(.,name); \
207 .quad .TOC.@tocbase; \
208 .quad 0; \
209 .previous; \
210 .type GLUE(.,name),@function; \
211GLUE(.,name):
212
Paul Mackerras40ef8cb2005-10-10 22:50:37 +1000213#define _KPROBE(name) \
214 .section ".kprobes.text","a"; \
215 .align 2 ; \
216 .globl name; \
217 .globl GLUE(.,name); \
218 .section ".opd","aw"; \
219name: \
220 .quad GLUE(.,name); \
221 .quad .TOC.@tocbase; \
222 .quad 0; \
223 .previous; \
224 .type GLUE(.,name),@function; \
225GLUE(.,name):
226
227#define _STATIC(name) \
228 .section ".text"; \
229 .align 2 ; \
230 .section ".opd","aw"; \
231name: \
232 .quad GLUE(.,name); \
233 .quad .TOC.@tocbase; \
234 .quad 0; \
235 .previous; \
236 .type GLUE(.,name),@function; \
237GLUE(.,name):
238
Stephen Rothwellc40b91b2007-07-25 09:27:35 +1000239#define _INIT_STATIC(name) \
Tim Abbott9203fc92009-04-27 14:02:24 -0400240 __REF; \
Stephen Rothwellc40b91b2007-07-25 09:27:35 +1000241 .align 2 ; \
242 .section ".opd","aw"; \
243name: \
244 .quad GLUE(.,name); \
245 .quad .TOC.@tocbase; \
246 .quad 0; \
247 .previous; \
248 .type GLUE(.,name),@function; \
249GLUE(.,name):
250
Paul Mackerras40ef8cb2005-10-10 22:50:37 +1000251#else /* 32-bit */
252
Kumar Gala748a7682007-09-13 15:42:35 -0500253#define _ENTRY(n) \
254 .globl n; \
255n:
256
Paul Mackerras40ef8cb2005-10-10 22:50:37 +1000257#define _GLOBAL(n) \
258 .text; \
259 .stabs __stringify(n:F-1),N_FUN,0,0,n;\
260 .globl n; \
261n:
262
263#define _KPROBE(n) \
264 .section ".kprobes.text","a"; \
265 .globl n; \
266n:
267
268#endif
269
Kumar Gala5f7c6902005-09-09 15:02:25 -0500270/*
David Gibsone58c3492006-01-13 14:56:25 +1100271 * LOAD_REG_IMMEDIATE(rn, expr)
272 * Loads the value of the constant expression 'expr' into register 'rn'
273 * using immediate instructions only. Use this when it's important not
274 * to reference other data (i.e. on ppc64 when the TOC pointer is not
Paul Mackerrase31aa452008-08-30 11:41:12 +1000275 * valid) and when 'expr' is a constant or absolute address.
Kumar Gala5f7c6902005-09-09 15:02:25 -0500276 *
David Gibsone58c3492006-01-13 14:56:25 +1100277 * LOAD_REG_ADDR(rn, name)
278 * Loads the address of label 'name' into register 'rn'. Use this when
279 * you don't particularly need immediate instructions only, but you need
280 * the whole address in one register (e.g. it's a structure address and
281 * you want to access various offsets within it). On ppc32 this is
282 * identical to LOAD_REG_IMMEDIATE.
283 *
284 * LOAD_REG_ADDRBASE(rn, name)
285 * ADDROFF(name)
286 * LOAD_REG_ADDRBASE loads part of the address of label 'name' into
287 * register 'rn'. ADDROFF(name) returns the remainder of the address as
288 * a constant expression. ADDROFF(name) is a signed expression < 16 bits
289 * in size, so is suitable for use directly as an offset in load and store
290 * instructions. Use this when loading/storing a single word or less as:
291 * LOAD_REG_ADDRBASE(rX, name)
292 * ld rY,ADDROFF(name)(rX)
Kumar Gala5f7c6902005-09-09 15:02:25 -0500293 */
294#ifdef __powerpc64__
David Gibsone58c3492006-01-13 14:56:25 +1100295#define LOAD_REG_IMMEDIATE(reg,expr) \
296 lis (reg),(expr)@highest; \
297 ori (reg),(reg),(expr)@higher; \
298 rldicr (reg),(reg),32,31; \
299 oris (reg),(reg),(expr)@h; \
300 ori (reg),(reg),(expr)@l;
Kumar Gala5f7c6902005-09-09 15:02:25 -0500301
David Gibsone58c3492006-01-13 14:56:25 +1100302#define LOAD_REG_ADDR(reg,name) \
303 ld (reg),name@got(r2)
Kumar Gala5f7c6902005-09-09 15:02:25 -0500304
David Gibsone58c3492006-01-13 14:56:25 +1100305#define LOAD_REG_ADDRBASE(reg,name) LOAD_REG_ADDR(reg,name)
306#define ADDROFF(name) 0
Paul Mackerrasb85a0462005-10-06 10:59:19 +1000307
Paul Mackerrasf78541d2005-10-28 22:53:37 +1000308/* offsets for stack frame layout */
309#define LRSAVE 16
Paul Mackerrasb85a0462005-10-06 10:59:19 +1000310
311#else /* 32-bit */
Stephen Rothwell70620182005-10-12 17:44:55 +1000312
David Gibsone58c3492006-01-13 14:56:25 +1100313#define LOAD_REG_IMMEDIATE(reg,expr) \
314 lis (reg),(expr)@ha; \
315 addi (reg),(reg),(expr)@l;
Paul Mackerrasb85a0462005-10-06 10:59:19 +1000316
David Gibsone58c3492006-01-13 14:56:25 +1100317#define LOAD_REG_ADDR(reg,name) LOAD_REG_IMMEDIATE(reg, name)
318
319#define LOAD_REG_ADDRBASE(reg, name) lis (reg),name@ha
320#define ADDROFF(name) name@l
Paul Mackerrasb85a0462005-10-06 10:59:19 +1000321
Paul Mackerrasf78541d2005-10-28 22:53:37 +1000322/* offsets for stack frame layout */
323#define LRSAVE 4
Paul Mackerrasb85a0462005-10-06 10:59:19 +1000324
Kumar Gala5f7c6902005-09-09 15:02:25 -0500325#endif
326
327/* various errata or part fixups */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700328#ifdef CONFIG_PPC601_SYNC_FIX
329#define SYNC \
330BEGIN_FTR_SECTION \
331 sync; \
332 isync; \
333END_FTR_SECTION_IFSET(CPU_FTR_601)
334#define SYNC_601 \
335BEGIN_FTR_SECTION \
336 sync; \
337END_FTR_SECTION_IFSET(CPU_FTR_601)
338#define ISYNC_601 \
339BEGIN_FTR_SECTION \
340 isync; \
341END_FTR_SECTION_IFSET(CPU_FTR_601)
342#else
343#define SYNC
344#define SYNC_601
345#define ISYNC_601
346#endif
347
Benjamin Herrenschmidt859deea2006-10-20 14:37:05 +1000348#ifdef CONFIG_PPC_CELL
349#define MFTB(dest) \
35090: mftb dest; \
351BEGIN_FTR_SECTION_NESTED(96); \
352 cmpwi dest,0; \
353 beq- 90b; \
354END_FTR_SECTION_NESTED(CPU_FTR_CELL_TB_BUG, CPU_FTR_CELL_TB_BUG, 96)
355#else
356#define MFTB(dest) mftb dest
357#endif
Kumar Gala5f7c6902005-09-09 15:02:25 -0500358
Linus Torvalds1da177e2005-04-16 15:20:36 -0700359#ifndef CONFIG_SMP
360#define TLBSYNC
361#else /* CONFIG_SMP */
362/* tlbsync is not implemented on 601 */
363#define TLBSYNC \
364BEGIN_FTR_SECTION \
365 tlbsync; \
366 sync; \
367END_FTR_SECTION_IFCLR(CPU_FTR_601)
368#endif
369
Kumar Gala5f7c6902005-09-09 15:02:25 -0500370
Linus Torvalds1da177e2005-04-16 15:20:36 -0700371/*
372 * This instruction is not implemented on the PPC 603 or 601; however, on
373 * the 403GCX and 405GP tlbia IS defined and tlbie is not.
374 * All of these instructions exist in the 8xx, they have magical powers,
375 * and they must be used.
376 */
377
378#if !defined(CONFIG_4xx) && !defined(CONFIG_8xx)
379#define tlbia \
380 li r4,1024; \
381 mtctr r4; \
382 lis r4,KERNELBASE@h; \
3830: tlbie r4; \
384 addi r4,r4,0x1000; \
385 bdnz 0b
386#endif
387
Kumar Gala5f7c6902005-09-09 15:02:25 -0500388
Kumar Gala5f7c6902005-09-09 15:02:25 -0500389#ifdef CONFIG_IBM440EP_ERR42
390#define PPC440EP_ERR42 isync
391#else
392#define PPC440EP_ERR42
393#endif
394
Benjamin Herrenschmidt44c58cc2009-07-23 23:15:20 +0000395/*
396 * toreal/fromreal/tophys/tovirt macros. 32-bit BookE makes them
397 * keep the address intact to be compatible with code shared with
398 * 32-bit classic.
399 *
400 * On the other hand, I find it useful to have them behave as expected
401 * by their name (ie always do the addition) on 64-bit BookE
402 */
403#if defined(CONFIG_BOOKE) && !defined(CONFIG_PPC64)
Paul Mackerras63162222005-10-27 22:44:39 +1000404#define toreal(rd)
405#define fromreal(rd)
406
Roland McGrath2ca76332008-05-11 10:40:47 +1000407/*
408 * We use addis to ensure compatibility with the "classic" ppc versions of
409 * these macros, which use rs = 0 to get the tophys offset in rd, rather than
410 * converting the address in r0, and so this version has to do that too
411 * (i.e. set register rd to 0 when rs == 0).
412 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700413#define tophys(rd,rs) \
414 addis rd,rs,0
415
416#define tovirt(rd,rs) \
417 addis rd,rs,0
418
Kumar Gala5f7c6902005-09-09 15:02:25 -0500419#elif defined(CONFIG_PPC64)
Paul Mackerras63162222005-10-27 22:44:39 +1000420#define toreal(rd) /* we can access c000... in real mode */
421#define fromreal(rd)
422
Kumar Gala5f7c6902005-09-09 15:02:25 -0500423#define tophys(rd,rs) \
Paul Mackerras63162222005-10-27 22:44:39 +1000424 clrldi rd,rs,2
Kumar Gala5f7c6902005-09-09 15:02:25 -0500425
426#define tovirt(rd,rs) \
Paul Mackerras63162222005-10-27 22:44:39 +1000427 rotldi rd,rs,16; \
428 ori rd,rd,((KERNELBASE>>48)&0xFFFF);\
429 rotldi rd,rd,48
Kumar Gala5f7c6902005-09-09 15:02:25 -0500430#else
Linus Torvalds1da177e2005-04-16 15:20:36 -0700431/*
432 * On APUS (Amiga PowerPC cpu upgrade board), we don't know the
433 * physical base address of RAM at compile time.
434 */
Paul Mackerras63162222005-10-27 22:44:39 +1000435#define toreal(rd) tophys(rd,rd)
436#define fromreal(rd) tovirt(rd,rd)
437
Linus Torvalds1da177e2005-04-16 15:20:36 -0700438#define tophys(rd,rs) \
Dale Farnsworthccdcef72008-12-17 10:09:13 +00004390: addis rd,rs,-PAGE_OFFSET@h; \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700440 .section ".vtop_fixup","aw"; \
441 .align 1; \
442 .long 0b; \
443 .previous
444
445#define tovirt(rd,rs) \
Dale Farnsworthccdcef72008-12-17 10:09:13 +00004460: addis rd,rs,PAGE_OFFSET@h; \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700447 .section ".ptov_fixup","aw"; \
448 .align 1; \
449 .long 0b; \
450 .previous
Kumar Gala5f7c6902005-09-09 15:02:25 -0500451#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700452
Benjamin Herrenschmidt44c58cc2009-07-23 23:15:20 +0000453#ifdef CONFIG_PPC_BOOK3S_64
Paul Mackerras40ef8cb2005-10-10 22:50:37 +1000454#define RFI rfid
455#define MTMSRD(r) mtmsrd r
Linus Torvalds1da177e2005-04-16 15:20:36 -0700456#else
457#define FIX_SRR1(ra, rb)
458#ifndef CONFIG_40x
459#define RFI rfi
460#else
461#define RFI rfi; b . /* Prevent prefetch past rfi */
462#endif
463#define MTMSRD(r) mtmsr r
464#define CLR_TOP32(r)
Matt Porterc9cf73a2005-07-31 22:34:52 -0700465#endif
466
Arnd Bergmann88ced032005-12-16 22:43:46 +0100467#endif /* __KERNEL__ */
468
Linus Torvalds1da177e2005-04-16 15:20:36 -0700469/* The boring bits... */
470
471/* Condition Register Bit Fields */
472
473#define cr0 0
474#define cr1 1
475#define cr2 2
476#define cr3 3
477#define cr4 4
478#define cr5 5
479#define cr6 6
480#define cr7 7
481
482
483/* General Purpose Registers (GPRs) */
484
485#define r0 0
486#define r1 1
487#define r2 2
488#define r3 3
489#define r4 4
490#define r5 5
491#define r6 6
492#define r7 7
493#define r8 8
494#define r9 9
495#define r10 10
496#define r11 11
497#define r12 12
498#define r13 13
499#define r14 14
500#define r15 15
501#define r16 16
502#define r17 17
503#define r18 18
504#define r19 19
505#define r20 20
506#define r21 21
507#define r22 22
508#define r23 23
509#define r24 24
510#define r25 25
511#define r26 26
512#define r27 27
513#define r28 28
514#define r29 29
515#define r30 30
516#define r31 31
517
518
519/* Floating Point Registers (FPRs) */
520
521#define fr0 0
522#define fr1 1
523#define fr2 2
524#define fr3 3
525#define fr4 4
526#define fr5 5
527#define fr6 6
528#define fr7 7
529#define fr8 8
530#define fr9 9
531#define fr10 10
532#define fr11 11
533#define fr12 12
534#define fr13 13
535#define fr14 14
536#define fr15 15
537#define fr16 16
538#define fr17 17
539#define fr18 18
540#define fr19 19
541#define fr20 20
542#define fr21 21
543#define fr22 22
544#define fr23 23
545#define fr24 24
546#define fr25 25
547#define fr26 26
548#define fr27 27
549#define fr28 28
550#define fr29 29
551#define fr30 30
552#define fr31 31
553
Kumar Gala5f7c6902005-09-09 15:02:25 -0500554/* AltiVec Registers (VPRs) */
555
Linus Torvalds1da177e2005-04-16 15:20:36 -0700556#define vr0 0
557#define vr1 1
558#define vr2 2
559#define vr3 3
560#define vr4 4
561#define vr5 5
562#define vr6 6
563#define vr7 7
564#define vr8 8
565#define vr9 9
566#define vr10 10
567#define vr11 11
568#define vr12 12
569#define vr13 13
570#define vr14 14
571#define vr15 15
572#define vr16 16
573#define vr17 17
574#define vr18 18
575#define vr19 19
576#define vr20 20
577#define vr21 21
578#define vr22 22
579#define vr23 23
580#define vr24 24
581#define vr25 25
582#define vr26 26
583#define vr27 27
584#define vr28 28
585#define vr29 29
586#define vr30 30
587#define vr31 31
588
Michael Neuling72ffff52008-06-25 14:07:18 +1000589/* VSX Registers (VSRs) */
590
591#define vsr0 0
592#define vsr1 1
593#define vsr2 2
594#define vsr3 3
595#define vsr4 4
596#define vsr5 5
597#define vsr6 6
598#define vsr7 7
599#define vsr8 8
600#define vsr9 9
601#define vsr10 10
602#define vsr11 11
603#define vsr12 12
604#define vsr13 13
605#define vsr14 14
606#define vsr15 15
607#define vsr16 16
608#define vsr17 17
609#define vsr18 18
610#define vsr19 19
611#define vsr20 20
612#define vsr21 21
613#define vsr22 22
614#define vsr23 23
615#define vsr24 24
616#define vsr25 25
617#define vsr26 26
618#define vsr27 27
619#define vsr28 28
620#define vsr29 29
621#define vsr30 30
622#define vsr31 31
623#define vsr32 32
624#define vsr33 33
625#define vsr34 34
626#define vsr35 35
627#define vsr36 36
628#define vsr37 37
629#define vsr38 38
630#define vsr39 39
631#define vsr40 40
632#define vsr41 41
633#define vsr42 42
634#define vsr43 43
635#define vsr44 44
636#define vsr45 45
637#define vsr46 46
638#define vsr47 47
639#define vsr48 48
640#define vsr49 49
641#define vsr50 50
642#define vsr51 51
643#define vsr52 52
644#define vsr53 53
645#define vsr54 54
646#define vsr55 55
647#define vsr56 56
648#define vsr57 57
649#define vsr58 58
650#define vsr59 59
651#define vsr60 60
652#define vsr61 61
653#define vsr62 62
654#define vsr63 63
655
Kumar Gala5f7c6902005-09-09 15:02:25 -0500656/* SPE Registers (EVPRs) */
657
Linus Torvalds1da177e2005-04-16 15:20:36 -0700658#define evr0 0
659#define evr1 1
660#define evr2 2
661#define evr3 3
662#define evr4 4
663#define evr5 5
664#define evr6 6
665#define evr7 7
666#define evr8 8
667#define evr9 9
668#define evr10 10
669#define evr11 11
670#define evr12 12
671#define evr13 13
672#define evr14 14
673#define evr15 15
674#define evr16 16
675#define evr17 17
676#define evr18 18
677#define evr19 19
678#define evr20 20
679#define evr21 21
680#define evr22 22
681#define evr23 23
682#define evr24 24
683#define evr25 25
684#define evr26 26
685#define evr27 27
686#define evr28 28
687#define evr29 29
688#define evr30 30
689#define evr31 31
690
691/* some stab codes */
692#define N_FUN 36
693#define N_RSYM 64
694#define N_SLINE 68
695#define N_SO 100
Kumar Gala5f7c6902005-09-09 15:02:25 -0500696
Kumar Gala5f7c6902005-09-09 15:02:25 -0500697#endif /* __ASSEMBLY__ */
698
699#endif /* _ASM_POWERPC_PPC_ASM_H */