projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 | 1 | /* |
| 1da177e4 | 2 | * Copyright (C) 1995-1999 Gary Thomas, Paul Mackerras, Cort Dougan. |
| 1da177e4 | 3 | */ |
| 5f7c6907 KG |
4 | #ifndef _ASM_POWERPC_PPC_ASM_H |
| 5 | #define _ASM_POWERPC_PPC_ASM_H | |
| 6 | ||
| 40ef8cbc | 7 | #include <linux/stringify.h> |
| 3ddfbcf1 | 8 | #include <asm/asm-compat.h> |
| 9c75a31c | 9 | #include <asm/processor.h> |
| 16c57b36 | 10 | #include <asm/ppc-opcode.h> |
| cf9efce0 | 11 | #include <asm/firmware.h> |
| 40ef8cbc | 12 | |
| 3ddfbcf1 DG |
13 | #ifndef __ASSEMBLY__ |
| 14 | #error __FILE__ should only be used in assembler files | |
| 15 | #else | |
| 16 | ||
| 17 | #define SZL (BITS_PER_LONG/8) | |
| 1da177e4 | 18 | |
| c6622f63 PM |
19 | /* |
| 20 | * Stuff for accurate CPU time accounting. | |
| 21 | * These macros handle transitions between user and system state | |
| 22 | * in exception entry and exit and accumulate time to the | |
| 23 | * user_time and system_time fields in the paca. | |
| 24 | */ | |
| 25 | ||
| abf917cd | 26 | #ifndef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE |
| c6622f63 PM |
27 | #define ACCOUNT_CPU_USER_ENTRY(ra, rb) |
| 28 | #define ACCOUNT_CPU_USER_EXIT(ra, rb) | |
| cf9efce0 | 29 | #define ACCOUNT_STOLEN_TIME |
| c6622f63 PM |
30 | #else |
| 31 | #define ACCOUNT_CPU_USER_ENTRY(ra, rb) \ | |
| cf9efce0 PM |
32 | MFTB(ra); /* get timebase */ \ |
| 33 | ld rb,PACA_STARTTIME_USER(r13); \ | |
| 34 | std ra,PACA_STARTTIME(r13); \ | |
| c6622f63 PM |
35 | subf rb,rb,ra; /* subtract start value */ \ |
| 36 | ld ra,PACA_USER_TIME(r13); \ | |
| 37 | add ra,ra,rb; /* add on to user time */ \ | |
| 38 | std ra,PACA_USER_TIME(r13); \ | |
| c6622f63 PM |
39 | |
| 40 | #define ACCOUNT_CPU_USER_EXIT(ra, rb) \ | |
| cf9efce0 PM |
41 | MFTB(ra); /* get timebase */ \ |
| 42 | ld rb,PACA_STARTTIME(r13); \ | |
| 43 | std ra,PACA_STARTTIME_USER(r13); \ | |
| c6622f63 PM |
44 | subf rb,rb,ra; /* subtract start value */ \ |
| 45 | ld ra,PACA_SYSTEM_TIME(r13); \ | |
| cf9efce0 PM |
46 | add ra,ra,rb; /* add on to system time */ \ |
| 47 | std ra,PACA_SYSTEM_TIME(r13) | |
| 48 | ||
| 49 | #ifdef CONFIG_PPC_SPLPAR | |
| 50 | #define ACCOUNT_STOLEN_TIME \ | |
| 51 | BEGIN_FW_FTR_SECTION; \ | |
| 52 | beq 33f; \ | |
| 53 | /* from user - see if there are any DTL entries to process */ \ | |
| 54 | ld r10,PACALPPACAPTR(r13); /* get ptr to VPA */ \ | |
| 55 | ld r11,PACA_DTL_RIDX(r13); /* get log read index */ \ | |
| 7ffcf8ec AB |
56 | addi r10,r10,LPPACA_DTLIDX; \ |
| 57 | LDX_BE r10,0,r10; /* get log write index */ \ | |
| cf9efce0 PM |
58 | cmpd cr1,r11,r10; \ |
| 59 | beq+ cr1,33f; \ | |
| b1576fec | 60 | bl accumulate_stolen_time; \ |
| 990118c8 BH |
61 | ld r12,_MSR(r1); \ |
| 62 | andi. r10,r12,MSR_PR; /* Restore cr0 (coming from user) */ \ | |
| cf9efce0 PM |
63 | 33: \ |
| 64 | END_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 | ||
| abf917cd | 71 | #endif /* CONFIG_VIRT_CPU_ACCOUNTING_NATIVE */ |
| c6622f63 | 72 | |
| 1da177e4 LT |
73 | /* |
| 74 | * Macros for storing registers into and loading registers from | |
| 75 | * exception frames. | |
| 76 | */ | |
| 5f7c6907 KG |
77 | #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 | |
| 1da177e4 | 83 | #define SAVE_GPR(n, base) stw n,GPR0+4*(n)(base) |
| 5f7c6907 KG |
84 | #define REST_GPR(n, base) lwz n,GPR0+4*(n)(base) |
| 85 | #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) | |
| 89 | #endif | |
| 90 | ||
| 1da177e4 LT |
91 | #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) | |
| 1da177e4 LT |
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) | |
| 99 | ||
| de79f7b9 | 100 | #define SAVE_FPR(n, base) stfd n,8*TS_FPRWIDTH*(n)(base) |
| 1da177e4 LT |
101 | #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) | |
| de79f7b9 | 106 | #define REST_FPR(n, base) lfd n,8*TS_FPRWIDTH*(n)(base) |
| 1da177e4 LT |
107 | #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 | ||
| de79f7b9 | 113 | #define SAVE_VR(n,b,base) li b,16*(n); stvx n,base,b |
| 5f7c6907 KG |
114 | #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) | |
| de79f7b9 | 119 | #define REST_VR(n,b,base) li b,16*(n); lvx n,base,b |
| 5f7c6907 KG |
120 | #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) | |
| 1da177e4 | 125 | |
| 926f160f AB |
126 | #ifdef __BIG_ENDIAN__ |
| 127 | #define STXVD2X_ROT(n,b,base) STXVD2X(n,b,base) | |
| 128 | #define LXVD2X_ROT(n,b,base) LXVD2X(n,b,base) | |
| 129 | #else | |
| 130 | #define STXVD2X_ROT(n,b,base) XXSWAPD(n,n); \ | |
| 131 | STXVD2X(n,b,base); \ | |
| 132 | XXSWAPD(n,n) | |
| 133 | ||
| 134 | #define LXVD2X_ROT(n,b,base) LXVD2X(n,b,base); \ | |
| 135 | XXSWAPD(n,n) | |
| 136 | #endif | |
| 72ffff5b | 137 | /* Save the lower 32 VSRs in the thread VSR region */ |
| 3ad26e5c | 138 | #define SAVE_VSR(n,b,base) li b,16*(n); STXVD2X_ROT(n,R##base,R##b) |
| 72ffff5b MN |
139 | #define SAVE_2VSRS(n,b,base) SAVE_VSR(n,b,base); SAVE_VSR(n+1,b,base) |
| 140 | #define SAVE_4VSRS(n,b,base) SAVE_2VSRS(n,b,base); SAVE_2VSRS(n+2,b,base) | |
| 141 | #define SAVE_8VSRS(n,b,base) SAVE_4VSRS(n,b,base); SAVE_4VSRS(n+4,b,base) | |
| 142 | #define SAVE_16VSRS(n,b,base) SAVE_8VSRS(n,b,base); SAVE_8VSRS(n+8,b,base) | |
| 143 | #define SAVE_32VSRS(n,b,base) SAVE_16VSRS(n,b,base); SAVE_16VSRS(n+16,b,base) | |
| 3ad26e5c | 144 | #define REST_VSR(n,b,base) li b,16*(n); LXVD2X_ROT(n,R##base,R##b) |
| 72ffff5b MN |
145 | #define REST_2VSRS(n,b,base) REST_VSR(n,b,base); REST_VSR(n+1,b,base) |
| 146 | #define REST_4VSRS(n,b,base) REST_2VSRS(n,b,base); REST_2VSRS(n+2,b,base) | |
| 147 | #define REST_8VSRS(n,b,base) REST_4VSRS(n,b,base); REST_4VSRS(n+4,b,base) | |
| 148 | #define REST_16VSRS(n,b,base) REST_8VSRS(n,b,base); REST_8VSRS(n+8,b,base) | |
| 149 | #define REST_32VSRS(n,b,base) REST_16VSRS(n,b,base); REST_16VSRS(n+16,b,base) | |
| 72ffff5b | 150 | |
| c51584d5 SW |
151 | /* |
| 152 | * b = base register for addressing, o = base offset from register of 1st EVR | |
| 153 | * n = first EVR, s = scratch | |
| 154 | */ | |
| 155 | #define SAVE_EVR(n,s,b,o) evmergehi s,s,n; stw s,o+4*(n)(b) | |
| 156 | #define SAVE_2EVRS(n,s,b,o) SAVE_EVR(n,s,b,o); SAVE_EVR(n+1,s,b,o) | |
| 157 | #define SAVE_4EVRS(n,s,b,o) SAVE_2EVRS(n,s,b,o); SAVE_2EVRS(n+2,s,b,o) | |
| 158 | #define SAVE_8EVRS(n,s,b,o) SAVE_4EVRS(n,s,b,o); SAVE_4EVRS(n+4,s,b,o) | |
| 159 | #define SAVE_16EVRS(n,s,b,o) SAVE_8EVRS(n,s,b,o); SAVE_8EVRS(n+8,s,b,o) | |
| 160 | #define SAVE_32EVRS(n,s,b,o) SAVE_16EVRS(n,s,b,o); SAVE_16EVRS(n+16,s,b,o) | |
| 161 | #define REST_EVR(n,s,b,o) lwz s,o+4*(n)(b); evmergelo n,s,n | |
| 162 | #define REST_2EVRS(n,s,b,o) REST_EVR(n,s,b,o); REST_EVR(n+1,s,b,o) | |
| 163 | #define REST_4EVRS(n,s,b,o) REST_2EVRS(n,s,b,o); REST_2EVRS(n+2,s,b,o) | |
| 164 | #define REST_8EVRS(n,s,b,o) REST_4EVRS(n,s,b,o); REST_4EVRS(n+4,s,b,o) | |
| 165 | #define REST_16EVRS(n,s,b,o) REST_8EVRS(n,s,b,o); REST_8EVRS(n+8,s,b,o) | |
| 166 | #define REST_32EVRS(n,s,b,o) REST_16EVRS(n,s,b,o); REST_16EVRS(n+16,s,b,o) | |
| 5f7c6907 | 167 | |
| 8c71632f ME |
168 | /* Macros to adjust thread priority for hardware multithreading */ |
| 169 | #define HMT_VERY_LOW or 31,31,31 # very low priority | |
| 170 | #define HMT_LOW or 1,1,1 | |
| 171 | #define HMT_MEDIUM_LOW or 6,6,6 # medium low priority | |
| 172 | #define HMT_MEDIUM or 2,2,2 | |
| 173 | #define HMT_MEDIUM_HIGH or 5,5,5 # medium high priority | |
| 174 | #define HMT_HIGH or 3,3,3 | |
| 50fb8ebe | 175 | #define HMT_EXTRA_HIGH or 7,7,7 # power7 only |
| 5f7c6907 | 176 | |
| d72be892 MN |
177 | #ifdef CONFIG_PPC64 |
| 178 | #define ULONG_SIZE 8 | |
| 179 | #else | |
| 180 | #define ULONG_SIZE 4 | |
| 181 | #endif | |
| 0b7673c3 MN |
182 | #define __VCPU_GPR(n) (VCPU_GPRS + (n * ULONG_SIZE)) |
| 183 | #define VCPU_GPR(n) __VCPU_GPR(__REG_##n) | |
| d72be892 | 184 | |
| 88ced031 | 185 | #ifdef __KERNEL__ |
| 40ef8cbc PM |
186 | #ifdef CONFIG_PPC64 |
| 187 | ||
| 44ce6a5e | 188 | #define STACKFRAMESIZE 256 |
| 0b7673c3 MN |
189 | #define __STK_REG(i) (112 + ((i)-14)*8) |
| 190 | #define STK_REG(i) __STK_REG(__REG_##i) | |
| 44ce6a5e | 191 | |
| b37c10d1 | 192 | #if defined(_CALL_ELF) && _CALL_ELF == 2 |
| 6403105b | 193 | #define STK_GOT 24 |
| b37c10d1 AB |
194 | #define __STK_PARAM(i) (32 + ((i)-3)*8) |
| 195 | #else | |
| 6403105b | 196 | #define STK_GOT 40 |
| 0b7673c3 | 197 | #define __STK_PARAM(i) (48 + ((i)-3)*8) |
| b37c10d1 | 198 | #endif |
| 0b7673c3 | 199 | #define STK_PARAM(i) __STK_PARAM(__REG_##i) |
| 44ce6a5e | 200 | |
| 7167af7c AB |
201 | #if defined(_CALL_ELF) && _CALL_ELF == 2 |
| 202 | ||
| 203 | #define _GLOBAL(name) \ | |
| 204 | .section ".text"; \ | |
| 205 | .align 2 ; \ | |
| 206 | .type name,@function; \ | |
| 207 | .globl name; \ | |
| 208 | name: | |
| 209 | ||
| 169c7cee AB |
210 | #define _GLOBAL_TOC(name) \ |
| 211 | .section ".text"; \ | |
| 212 | .align 2 ; \ | |
| 213 | .type name,@function; \ | |
| 214 | .globl name; \ | |
| 215 | name: \ | |
| 216 | 0: addis r2,r12,(.TOC.-0b)@ha; \ | |
| 217 | addi r2,r2,(.TOC.-0b)@l; \ | |
| 218 | .localentry name,.-name | |
| 219 | ||
| 7167af7c AB |
220 | #define _KPROBE(name) \ |
| 221 | .section ".kprobes.text","a"; \ | |
| 222 | .align 2 ; \ | |
| 223 | .type name,@function; \ | |
| 224 | .globl name; \ | |
| 225 | name: | |
| 226 | ||
| 227 | #define DOTSYM(a) a | |
| 228 | ||
| 229 | #else | |
| 230 | ||
| 40ef8cbc PM |
231 | #define XGLUE(a,b) a##b |
| 232 | #define GLUE(a,b) XGLUE(a,b) | |
| 233 | ||
| 234 | #define _GLOBAL(name) \ | |
| 235 | .section ".text"; \ | |
| 236 | .align 2 ; \ | |
| 237 | .globl name; \ | |
| 238 | .globl GLUE(.,name); \ | |
| 239 | .section ".opd","aw"; \ | |
| 240 | name: \ | |
| 241 | .quad GLUE(.,name); \ | |
| 242 | .quad .TOC.@tocbase; \ | |
| 243 | .quad 0; \ | |
| 244 | .previous; \ | |
| 245 | .type GLUE(.,name),@function; \ | |
| 246 | GLUE(.,name): | |
| 247 | ||
| 169c7cee AB |
248 | #define _GLOBAL_TOC(name) _GLOBAL(name) |
| 249 | ||
| 40ef8cbc PM |
250 | #define _KPROBE(name) \ |
| 251 | .section ".kprobes.text","a"; \ | |
| 252 | .align 2 ; \ | |
| 253 | .globl name; \ | |
| 254 | .globl GLUE(.,name); \ | |
| 255 | .section ".opd","aw"; \ | |
| 256 | name: \ | |
| 257 | .quad GLUE(.,name); \ | |
| 258 | .quad .TOC.@tocbase; \ | |
| 259 | .quad 0; \ | |
| 260 | .previous; \ | |
| 261 | .type GLUE(.,name),@function; \ | |
| 262 | GLUE(.,name): | |
| 263 | ||
| c1fb0194 AB |
264 | #define DOTSYM(a) GLUE(.,a) |
| 265 | ||
| 7167af7c AB |
266 | #endif |
| 267 | ||
| 40ef8cbc PM |
268 | #else /* 32-bit */ |
| 269 | ||
| 748a7683 KG |
270 | #define _ENTRY(n) \ |
| 271 | .globl n; \ | |
| 272 | n: | |
| 273 | ||
| 40ef8cbc PM |
274 | #define _GLOBAL(n) \ |
| 275 | .text; \ | |
| 276 | .stabs __stringify(n:F-1),N_FUN,0,0,n;\ | |
| 277 | .globl n; \ | |
| 278 | n: | |
| 279 | ||
| 9715a2e8 AG |
280 | #define _GLOBAL_TOC(name) _GLOBAL(name) |
| 281 | ||
| 40ef8cbc PM |
282 | #define _KPROBE(n) \ |
| 283 | .section ".kprobes.text","a"; \ | |
| 284 | .globl n; \ | |
| 285 | n: | |
| 286 | ||
| 287 | #endif | |
| 288 | ||
| 151f2511 AB |
289 | #define FUNC_START(name) _GLOBAL(name) |
| 290 | #define FUNC_END(name) | |
| 291 | ||
| 5f7c6907 | 292 | /* |
| e58c3495 DG |
293 | * LOAD_REG_IMMEDIATE(rn, expr) |
| 294 | * Loads the value of the constant expression 'expr' into register 'rn' | |
| 295 | * using immediate instructions only. Use this when it's important not | |
| 296 | * to reference other data (i.e. on ppc64 when the TOC pointer is not | |
| e31aa453 | 297 | * valid) and when 'expr' is a constant or absolute address. |
| 5f7c6907 | 298 | * |
| e58c3495 DG |
299 | * LOAD_REG_ADDR(rn, name) |
| 300 | * Loads the address of label 'name' into register 'rn'. Use this when | |
| 301 | * you don't particularly need immediate instructions only, but you need | |
| 302 | * the whole address in one register (e.g. it's a structure address and | |
| 303 | * you want to access various offsets within it). On ppc32 this is | |
| 304 | * identical to LOAD_REG_IMMEDIATE. | |
| 305 | * | |
| 1c49abec KH |
306 | * LOAD_REG_ADDR_PIC(rn, name) |
| 307 | * Loads the address of label 'name' into register 'run'. Use this when | |
| 308 | * the kernel doesn't run at the linked or relocated address. Please | |
| 309 | * note that this macro will clobber the lr register. | |
| 310 | * | |
| e58c3495 DG |
311 | * LOAD_REG_ADDRBASE(rn, name) |
| 312 | * ADDROFF(name) | |
| 313 | * LOAD_REG_ADDRBASE loads part of the address of label 'name' into | |
| 314 | * register 'rn'. ADDROFF(name) returns the remainder of the address as | |
| 315 | * a constant expression. ADDROFF(name) is a signed expression < 16 bits | |
| 316 | * in size, so is suitable for use directly as an offset in load and store | |
| 317 | * instructions. Use this when loading/storing a single word or less as: | |
| 318 | * LOAD_REG_ADDRBASE(rX, name) | |
| 319 | * ld rY,ADDROFF(name)(rX) | |
| 5f7c6907 | 320 | */ |
| 1c49abec KH |
321 | |
| 322 | /* Be careful, this will clobber the lr register. */ | |
| 323 | #define LOAD_REG_ADDR_PIC(reg, name) \ | |
| 324 | bl 0f; \ | |
| 325 | 0: mflr reg; \ | |
| 326 | addis reg,reg,(name - 0b)@ha; \ | |
| 327 | addi reg,reg,(name - 0b)@l; | |
| 328 | ||
| 5f7c6907 | 329 | #ifdef __powerpc64__ |
| 7998eb3d GR |
330 | #ifdef HAVE_AS_ATHIGH |
| 331 | #define __AS_ATHIGH high | |
| 332 | #else | |
| 333 | #define __AS_ATHIGH h | |
| 334 | #endif | |
| e58c3495 | 335 | #define LOAD_REG_IMMEDIATE(reg,expr) \ |
| 564aa5cf MN |
336 | lis reg,(expr)@highest; \ |
| 337 | ori reg,reg,(expr)@higher; \ | |
| 338 | rldicr reg,reg,32,31; \ | |
| 7998eb3d | 339 | oris reg,reg,(expr)@__AS_ATHIGH; \ |
| 564aa5cf | 340 | ori reg,reg,(expr)@l; |
| e58c3495 DG |
341 | |
| 342 | #define LOAD_REG_ADDR(reg,name) \ | |
| 564aa5cf | 343 | ld reg,name@got(r2) |
| e58c3495 DG |
344 | |
| 345 | #define LOAD_REG_ADDRBASE(reg,name) LOAD_REG_ADDR(reg,name) | |
| 346 | #define ADDROFF(name) 0 | |
| b85a046a | 347 | |
| f78541dc PM |
348 | /* offsets for stack frame layout */ |
| 349 | #define LRSAVE 16 | |
| b85a046a PM |
350 | |
| 351 | #else /* 32-bit */ | |
| 70620186 | 352 | |
| e58c3495 | 353 | #define LOAD_REG_IMMEDIATE(reg,expr) \ |
| 564aa5cf MN |
354 | lis reg,(expr)@ha; \ |
| 355 | addi reg,reg,(expr)@l; | |
| e58c3495 DG |
356 | |
| 357 | #define LOAD_REG_ADDR(reg,name) LOAD_REG_IMMEDIATE(reg, name) | |
| b85a046a | 358 | |
| 564aa5cf | 359 | #define LOAD_REG_ADDRBASE(reg, name) lis reg,name@ha |
| e58c3495 | 360 | #define ADDROFF(name) name@l |
| b85a046a | 361 | |
| f78541dc PM |
362 | /* offsets for stack frame layout */ |
| 363 | #define LRSAVE 4 | |
| b85a046a | 364 | |
| 5f7c6907 | 365 | #endif |
| 1da177e4 | 366 | |
| 5f7c6907 | 367 | /* various errata or part fixups */ |
| 1da177e4 LT |
368 | #ifdef CONFIG_PPC601_SYNC_FIX |
| 369 | #define SYNC \ | |
| 370 | BEGIN_FTR_SECTION \ | |
| 371 | sync; \ | |
| 372 | isync; \ | |
| 373 | END_FTR_SECTION_IFSET(CPU_FTR_601) | |
| 374 | #define SYNC_601 \ | |
| 375 | BEGIN_FTR_SECTION \ | |
| 376 | sync; \ | |
| 377 | END_FTR_SECTION_IFSET(CPU_FTR_601) | |
| 378 | #define ISYNC_601 \ | |
| 379 | BEGIN_FTR_SECTION \ | |
| 380 | isync; \ | |
| 381 | END_FTR_SECTION_IFSET(CPU_FTR_601) | |
| 382 | #else | |
| 383 | #define SYNC | |
| 384 | #define SYNC_601 | |
| 385 | #define ISYNC_601 | |
| 386 | #endif | |
| 387 | ||
| d52459ca | 388 | #if defined(CONFIG_PPC_CELL) || defined(CONFIG_PPC_FSL_BOOK3E) |
| 859deea9 | 389 | #define MFTB(dest) \ |
| beb2dc0a | 390 | 90: mfspr dest, SPRN_TBRL; \ |
| 859deea9 BH |
391 | BEGIN_FTR_SECTION_NESTED(96); \ |
| 392 | cmpwi dest,0; \ | |
| 393 | beq- 90b; \ | |
| 394 | END_FTR_SECTION_NESTED(CPU_FTR_CELL_TB_BUG, CPU_FTR_CELL_TB_BUG, 96) | |
| ae2163be LC |
395 | #elif defined(CONFIG_8xx) |
| 396 | #define MFTB(dest) mftb dest | |
| 859deea9 | 397 | #else |
| beb2dc0a | 398 | #define MFTB(dest) mfspr dest, SPRN_TBRL |
| 859deea9 | 399 | #endif |
| 5f7c6907 | 400 | |
| 1da177e4 LT |
401 | #ifndef CONFIG_SMP |
| 402 | #define TLBSYNC | |
| 403 | #else /* CONFIG_SMP */ | |
| 404 | /* tlbsync is not implemented on 601 */ | |
| 405 | #define TLBSYNC \ | |
| 406 | BEGIN_FTR_SECTION \ | |
| 407 | tlbsync; \ | |
| 408 | sync; \ | |
| 409 | END_FTR_SECTION_IFCLR(CPU_FTR_601) | |
| 410 | #endif | |
| 411 | ||
| 694caf02 AB |
412 | #ifdef CONFIG_PPC64 |
| 413 | #define MTOCRF(FXM, RS) \ | |
| 414 | BEGIN_FTR_SECTION_NESTED(848); \ | |
| 86e32fdc | 415 | mtcrf (FXM), RS; \ |
| 694caf02 | 416 | FTR_SECTION_ELSE_NESTED(848); \ |
| 86e32fdc | 417 | mtocrf (FXM), RS; \ |
| 694caf02 AB |
418 | ALT_FTR_SECTION_END_NESTED_IFCLR(CPU_FTR_NOEXECUTE, 848) |
| 419 | #endif | |
| 420 | ||
| 1da177e4 LT |
421 | /* |
| 422 | * This instruction is not implemented on the PPC 603 or 601; however, on | |
| 423 | * the 403GCX and 405GP tlbia IS defined and tlbie is not. | |
| 424 | * All of these instructions exist in the 8xx, they have magical powers, | |
| 425 | * and they must be used. | |
| 426 | */ | |
| 427 | ||
| 428 | #if !defined(CONFIG_4xx) && !defined(CONFIG_8xx) | |
| 429 | #define tlbia \ | |
| 430 | li r4,1024; \ | |
| 431 | mtctr r4; \ | |
| 432 | lis r4,KERNELBASE@h; \ | |
| e3824e42 RC |
433 | .machine push; \ |
| 434 | .machine "power4"; \ | |
| 1da177e4 | 435 | 0: tlbie r4; \ |
| e3824e42 | 436 | .machine pop; \ |
| 1da177e4 LT |
437 | addi r4,r4,0x1000; \ |
| 438 | bdnz 0b | |
| 439 | #endif | |
| 440 | ||
| 5f7c6907 | 441 | |
| 5f7c6907 KG |
442 | #ifdef CONFIG_IBM440EP_ERR42 |
| 443 | #define PPC440EP_ERR42 isync | |
| 444 | #else | |
| 445 | #define PPC440EP_ERR42 | |
| 446 | #endif | |
| 447 | ||
| a515348f MN |
448 | /* The following stops all load and store data streams associated with stream |
| 449 | * ID (ie. streams created explicitly). The embedded and server mnemonics for | |
| 450 | * dcbt are different so we use machine "power4" here explicitly. | |
| 451 | */ | |
| 452 | #define DCBT_STOP_ALL_STREAM_IDS(scratch) \ | |
| 453 | .machine push ; \ | |
| 454 | .machine "power4" ; \ | |
| 455 | lis scratch,0x60000000@h; \ | |
| 456 | dcbt r0,scratch,0b01010; \ | |
| 457 | .machine pop | |
| 458 | ||
| 44c58ccc BH |
459 | /* |
| 460 | * toreal/fromreal/tophys/tovirt macros. 32-bit BookE makes them | |
| 461 | * keep the address intact to be compatible with code shared with | |
| 462 | * 32-bit classic. | |
| 463 | * | |
| 464 | * On the other hand, I find it useful to have them behave as expected | |
| 465 | * by their name (ie always do the addition) on 64-bit BookE | |
| 466 | */ | |
| 467 | #if defined(CONFIG_BOOKE) && !defined(CONFIG_PPC64) | |
| 6316222e PM |
468 | #define toreal(rd) |
| 469 | #define fromreal(rd) | |
| 470 | ||
| 2ca7633d RM |
471 | /* |
| 472 | * We use addis to ensure compatibility with the "classic" ppc versions of | |
| 473 | * these macros, which use rs = 0 to get the tophys offset in rd, rather than | |
| 474 | * converting the address in r0, and so this version has to do that too | |
| 475 | * (i.e. set register rd to 0 when rs == 0). | |
| 476 | */ | |
| 1da177e4 LT |
477 | #define tophys(rd,rs) \ |
| 478 | addis rd,rs,0 | |
| 479 | ||
| 480 | #define tovirt(rd,rs) \ | |
| 481 | addis rd,rs,0 | |
| 482 | ||
| 5f7c6907 | 483 | #elif defined(CONFIG_PPC64) |
| 6316222e PM |
484 | #define toreal(rd) /* we can access c000... in real mode */ |
| 485 | #define fromreal(rd) | |
| 486 | ||
| 5f7c6907 | 487 | #define tophys(rd,rs) \ |
| 6316222e | 488 | clrldi rd,rs,2 |
| 5f7c6907 KG |
489 | |
| 490 | #define tovirt(rd,rs) \ | |
| 6316222e PM |
491 | rotldi rd,rs,16; \ |
| 492 | ori rd,rd,((KERNELBASE>>48)&0xFFFF);\ | |
| 493 | rotldi rd,rd,48 | |
| 5f7c6907 | 494 | #else |
| 1da177e4 LT |
495 | /* |
| 496 | * On APUS (Amiga PowerPC cpu upgrade board), we don't know the | |
| 497 | * physical base address of RAM at compile time. | |
| 498 | */ | |
| 6316222e PM |
499 | #define toreal(rd) tophys(rd,rd) |
| 500 | #define fromreal(rd) tovirt(rd,rd) | |
| 501 | ||
| 1da177e4 | 502 | #define tophys(rd,rs) \ |
| ccdcef72 | 503 | 0: addis rd,rs,-PAGE_OFFSET@h; \ |
| 1da177e4 LT |
504 | .section ".vtop_fixup","aw"; \ |
| 505 | .align 1; \ | |
| 506 | .long 0b; \ | |
| 507 | .previous | |
| 508 | ||
| 509 | #define tovirt(rd,rs) \ | |
| ccdcef72 | 510 | 0: addis rd,rs,PAGE_OFFSET@h; \ |
| 1da177e4 LT |
511 | .section ".ptov_fixup","aw"; \ |
| 512 | .align 1; \ | |
| 513 | .long 0b; \ | |
| 514 | .previous | |
| 5f7c6907 | 515 | #endif |
| 1da177e4 | 516 | |
| 44c58ccc | 517 | #ifdef CONFIG_PPC_BOOK3S_64 |
| 40ef8cbc PM |
518 | #define RFI rfid |
| 519 | #define MTMSRD(r) mtmsrd r | |
| b38c77d8 | 520 | #define MTMSR_EERI(reg) mtmsrd reg,1 |
| 1da177e4 LT |
521 | #else |
| 522 | #define FIX_SRR1(ra, rb) | |
| 523 | #ifndef CONFIG_40x | |
| 524 | #define RFI rfi | |
| 525 | #else | |
| 526 | #define RFI rfi; b . /* Prevent prefetch past rfi */ | |
| 527 | #endif | |
| 528 | #define MTMSRD(r) mtmsr r | |
| b38c77d8 | 529 | #define MTMSR_EERI(reg) mtmsr reg |
| 1da177e4 | 530 | #define CLR_TOP32(r) |
| c9cf73ae MP |
531 | #endif |
| 532 | ||
| 88ced031 AB |
533 | #endif /* __KERNEL__ */ |
| 534 | ||
| 1da177e4 LT |
535 | /* The boring bits... */ |
| 536 | ||
| 537 | /* Condition Register Bit Fields */ | |
| 538 | ||
| 539 | #define cr0 0 | |
| 540 | #define cr1 1 | |
| 541 | #define cr2 2 | |
| 542 | #define cr3 3 | |
| 543 | #define cr4 4 | |
| 544 | #define cr5 5 | |
| 545 | #define cr6 6 | |
| 546 | #define cr7 7 | |
| 547 | ||
| 548 | ||
| 9a13a524 MN |
549 | /* |
| 550 | * General Purpose Registers (GPRs) | |
| 551 | * | |
| 552 | * The lower case r0-r31 should be used in preference to the upper | |
| 553 | * case R0-R31 as they provide more error checking in the assembler. | |
| 554 | * Use R0-31 only when really nessesary. | |
| 555 | */ | |
| 556 | ||
| 557 | #define r0 %r0 | |
| 558 | #define r1 %r1 | |
| 559 | #define r2 %r2 | |
| 560 | #define r3 %r3 | |
| 561 | #define r4 %r4 | |
| 562 | #define r5 %r5 | |
| 563 | #define r6 %r6 | |
| 564 | #define r7 %r7 | |
| 565 | #define r8 %r8 | |
| 566 | #define r9 %r9 | |
| 567 | #define r10 %r10 | |
| 568 | #define r11 %r11 | |
| 569 | #define r12 %r12 | |
| 570 | #define r13 %r13 | |
| 571 | #define r14 %r14 | |
| 572 | #define r15 %r15 | |
| 573 | #define r16 %r16 | |
| 574 | #define r17 %r17 | |
| 575 | #define r18 %r18 | |
| 576 | #define r19 %r19 | |
| 577 | #define r20 %r20 | |
| 578 | #define r21 %r21 | |
| 579 | #define r22 %r22 | |
| 580 | #define r23 %r23 | |
| 581 | #define r24 %r24 | |
| 582 | #define r25 %r25 | |
| 583 | #define r26 %r26 | |
| 584 | #define r27 %r27 | |
| 585 | #define r28 %r28 | |
| 586 | #define r29 %r29 | |
| 587 | #define r30 %r30 | |
| 588 | #define r31 %r31 | |
| 1da177e4 LT |
589 | |
| 590 | ||
| 591 | /* Floating Point Registers (FPRs) */ | |
| 592 | ||
| 593 | #define fr0 0 | |
| 594 | #define fr1 1 | |
| 595 | #define fr2 2 | |
| 596 | #define fr3 3 | |
| 597 | #define fr4 4 | |
| 598 | #define fr5 5 | |
| 599 | #define fr6 6 | |
| 600 | #define fr7 7 | |
| 601 | #define fr8 8 | |
| 602 | #define fr9 9 | |
| 603 | #define fr10 10 | |
| 604 | #define fr11 11 | |
| 605 | #define fr12 12 | |
| 606 | #define fr13 13 | |
| 607 | #define fr14 14 | |
| 608 | #define fr15 15 | |
| 609 | #define fr16 16 | |
| 610 | #define fr17 17 | |
| 611 | #define fr18 18 | |
| 612 | #define fr19 19 | |
| 613 | #define fr20 20 | |
| 614 | #define fr21 21 | |
| 615 | #define fr22 22 | |
| 616 | #define fr23 23 | |
| 617 | #define fr24 24 | |
| 618 | #define fr25 25 | |
| 619 | #define fr26 26 | |
| 620 | #define fr27 27 | |
| 621 | #define fr28 28 | |
| 622 | #define fr29 29 | |
| 623 | #define fr30 30 | |
| 624 | #define fr31 31 | |
| 625 | ||
| 5f7c6907 KG |
626 | /* AltiVec Registers (VPRs) */ |
| 627 | ||
| c2ce6f9f AB |
628 | #define v0 0 |
| 629 | #define v1 1 | |
| 630 | #define v2 2 | |
| 631 | #define v3 3 | |
| 632 | #define v4 4 | |
| 633 | #define v5 5 | |
| 634 | #define v6 6 | |
| 635 | #define v7 7 | |
| 636 | #define v8 8 | |
| 637 | #define v9 9 | |
| 638 | #define v10 10 | |
| 639 | #define v11 11 | |
| 640 | #define v12 12 | |
| 641 | #define v13 13 | |
| 642 | #define v14 14 | |
| 643 | #define v15 15 | |
| 644 | #define v16 16 | |
| 645 | #define v17 17 | |
| 646 | #define v18 18 | |
| 647 | #define v19 19 | |
| 648 | #define v20 20 | |
| 649 | #define v21 21 | |
| 650 | #define v22 22 | |
| 651 | #define v23 23 | |
| 652 | #define v24 24 | |
| 653 | #define v25 25 | |
| 654 | #define v26 26 | |
| 655 | #define v27 27 | |
| 656 | #define v28 28 | |
| 657 | #define v29 29 | |
| 658 | #define v30 30 | |
| 659 | #define v31 31 | |
| 1da177e4 | 660 | |
| 72ffff5b MN |
661 | /* VSX Registers (VSRs) */ |
| 662 | ||
| df99e6eb AB |
663 | #define vs0 0 |
| 664 | #define vs1 1 | |
| 665 | #define vs2 2 | |
| 666 | #define vs3 3 | |
| 667 | #define vs4 4 | |
| 668 | #define vs5 5 | |
| 669 | #define vs6 6 | |
| 670 | #define vs7 7 | |
| 671 | #define vs8 8 | |
| 672 | #define vs9 9 | |
| 673 | #define vs10 10 | |
| 674 | #define vs11 11 | |
| 675 | #define vs12 12 | |
| 676 | #define vs13 13 | |
| 677 | #define vs14 14 | |
| 678 | #define vs15 15 | |
| 679 | #define vs16 16 | |
| 680 | #define vs17 17 | |
| 681 | #define vs18 18 | |
| 682 | #define vs19 19 | |
| 683 | #define vs20 20 | |
| 684 | #define vs21 21 | |
| 685 | #define vs22 22 | |
| 686 | #define vs23 23 | |
| 687 | #define vs24 24 | |
| 688 | #define vs25 25 | |
| 689 | #define vs26 26 | |
| 690 | #define vs27 27 | |
| 691 | #define vs28 28 | |
| 692 | #define vs29 29 | |
| 693 | #define vs30 30 | |
| 694 | #define vs31 31 | |
| 695 | #define vs32 32 | |
| 696 | #define vs33 33 | |
| 697 | #define vs34 34 | |
| 698 | #define vs35 35 | |
| 699 | #define vs36 36 | |
| 700 | #define vs37 37 | |
| 701 | #define vs38 38 | |
| 702 | #define vs39 39 | |
| 703 | #define vs40 40 | |
| 704 | #define vs41 41 | |
| 705 | #define vs42 42 | |
| 706 | #define vs43 43 | |
| 707 | #define vs44 44 | |
| 708 | #define vs45 45 | |
| 709 | #define vs46 46 | |
| 710 | #define vs47 47 | |
| 711 | #define vs48 48 | |
| 712 | #define vs49 49 | |
| 713 | #define vs50 50 | |
| 714 | #define vs51 51 | |
| 715 | #define vs52 52 | |
| 716 | #define vs53 53 | |
| 717 | #define vs54 54 | |
| 718 | #define vs55 55 | |
| 719 | #define vs56 56 | |
| 720 | #define vs57 57 | |
| 721 | #define vs58 58 | |
| 722 | #define vs59 59 | |
| 723 | #define vs60 60 | |
| 724 | #define vs61 61 | |
| 725 | #define vs62 62 | |
| 726 | #define vs63 63 | |
| 72ffff5b | 727 | |
| 5f7c6907 KG |
728 | /* SPE Registers (EVPRs) */ |
| 729 | ||
| 1da177e4 LT |
730 | #define evr0 0 |
| 731 | #define evr1 1 | |
| 732 | #define evr2 2 | |
| 733 | #define evr3 3 | |
| 734 | #define evr4 4 | |
| 735 | #define evr5 5 | |
| 736 | #define evr6 6 | |
| 737 | #define evr7 7 | |
| 738 | #define evr8 8 | |
| 739 | #define evr9 9 | |
| 740 | #define evr10 10 | |
| 741 | #define evr11 11 | |
| 742 | #define evr12 12 | |
| 743 | #define evr13 13 | |
| 744 | #define evr14 14 | |
| 745 | #define evr15 15 | |
| 746 | #define evr16 16 | |
| 747 | #define evr17 17 | |
| 748 | #define evr18 18 | |
| 749 | #define evr19 19 | |
| 750 | #define evr20 20 | |
| 751 | #define evr21 21 | |
| 752 | #define evr22 22 | |
| 753 | #define evr23 23 | |
| 754 | #define evr24 24 | |
| 755 | #define evr25 25 | |
| 756 | #define evr26 26 | |
| 757 | #define evr27 27 | |
| 758 | #define evr28 28 | |
| 759 | #define evr29 29 | |
| 760 | #define evr30 30 | |
| 761 | #define evr31 31 | |
| 762 | ||
| 763 | /* some stab codes */ | |
| 764 | #define N_FUN 36 | |
| 765 | #define N_RSYM 64 | |
| 766 | #define N_SLINE 68 | |
| 767 | #define N_SO 100 | |
| 5f7c6907 | 768 | |
| 5c0484e2 BH |
769 | /* |
| 770 | * Create an endian fixup trampoline | |
| 771 | * | |
| 772 | * This starts with a "tdi 0,0,0x48" instruction which is | |
| 773 | * essentially a "trap never", and thus akin to a nop. | |
| 774 | * | |
| 775 | * The opcode for this instruction read with the wrong endian | |
| 776 | * however results in a b . + 8 | |
| 777 | * | |
| 778 | * So essentially we use that trick to execute the following | |
| 779 | * trampoline in "reverse endian" if we are running with the | |
| 780 | * MSR_LE bit set the "wrong" way for whatever endianness the | |
| 781 | * kernel is built for. | |
| 782 | */ | |
| 5f7c6907 | 783 | |
| 5c0484e2 BH |
784 | #ifdef CONFIG_PPC_BOOK3E |
| 785 | #define FIXUP_ENDIAN | |
| 786 | #else | |
| 787 | #define FIXUP_ENDIAN \ | |
| 788 | tdi 0,0,0x48; /* Reverse endian of b . + 8 */ \ | |
| 789 | b $+36; /* Skip trampoline if endian is good */ \ | |
| 790 | .long 0x05009f42; /* bcl 20,31,$+4 */ \ | |
| 791 | .long 0xa602487d; /* mflr r10 */ \ | |
| 792 | .long 0x1c004a39; /* addi r10,r10,28 */ \ | |
| 793 | .long 0xa600607d; /* mfmsr r11 */ \ | |
| 794 | .long 0x01006b69; /* xori r11,r11,1 */ \ | |
| 795 | .long 0xa6035a7d; /* mtsrr0 r10 */ \ | |
| 796 | .long 0xa6037b7d; /* mtsrr1 r11 */ \ | |
| 797 | .long 0x2400004c /* rfid */ | |
| 798 | #endif /* !CONFIG_PPC_BOOK3E */ | |
| 799 | #endif /* __ASSEMBLY__ */ | |
| 5f7c6907 | 800 | #endif /* _ASM_POWERPC_PPC_ASM_H */ |