Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * This file is subject to the terms and conditions of the GNU General Public | |
3 | * License. See the file "COPYING" in the main directory of this archive | |
4 | * for more details. | |
5 | * | |
6 | * Copyright (C) 1994, 95, 96, 99, 2001 Ralf Baechle | |
7 | * Copyright (C) 1994, 1995, 1996 Paul M. Antoine. | |
8 | * Copyright (C) 1999 Silicon Graphics, Inc. | |
9 | */ | |
10 | #ifndef _ASM_STACKFRAME_H | |
11 | #define _ASM_STACKFRAME_H | |
12 | ||
1da177e4 LT |
13 | #include <linux/threads.h> |
14 | ||
15 | #include <asm/asm.h> | |
41c594ab | 16 | #include <asm/asmmacro.h> |
1da177e4 | 17 | #include <asm/mipsregs.h> |
048eb582 | 18 | #include <asm/asm-offsets.h> |
1da177e4 | 19 | |
fbf6ede2 MR |
20 | /* |
21 | * For SMTC kernel, global IE should be left set, and interrupts | |
22 | * controlled exclusively via IXMT. | |
23 | */ | |
24 | #ifdef CONFIG_MIPS_MT_SMTC | |
25 | #define STATMASK 0x1e | |
26 | #elif defined(CONFIG_CPU_R3000) || defined(CONFIG_CPU_TX39XX) | |
27 | #define STATMASK 0x3f | |
28 | #else | |
29 | #define STATMASK 0x1f | |
30 | #endif | |
31 | ||
41c594ab RB |
32 | #ifdef CONFIG_MIPS_MT_SMTC |
33 | #include <asm/mipsmtregs.h> | |
34 | #endif /* CONFIG_MIPS_MT_SMTC */ | |
35 | ||
1da177e4 LT |
36 | .macro SAVE_AT |
37 | .set push | |
38 | .set noat | |
39 | LONG_S $1, PT_R1(sp) | |
40 | .set pop | |
41 | .endm | |
42 | ||
43 | .macro SAVE_TEMP | |
9693a853 FBH |
44 | #ifdef CONFIG_CPU_HAS_SMARTMIPS |
45 | mflhxu v1 | |
46 | LONG_S v1, PT_LO(sp) | |
47 | mflhxu v1 | |
48 | LONG_S v1, PT_HI(sp) | |
49 | mflhxu v1 | |
50 | LONG_S v1, PT_ACX(sp) | |
51 | #else | |
1da177e4 | 52 | mfhi v1 |
9693a853 FBH |
53 | LONG_S v1, PT_HI(sp) |
54 | mflo v1 | |
55 | LONG_S v1, PT_LO(sp) | |
56 | #endif | |
875d43e7 | 57 | #ifdef CONFIG_32BIT |
1da177e4 LT |
58 | LONG_S $8, PT_R8(sp) |
59 | LONG_S $9, PT_R9(sp) | |
60 | #endif | |
1da177e4 LT |
61 | LONG_S $10, PT_R10(sp) |
62 | LONG_S $11, PT_R11(sp) | |
1da177e4 LT |
63 | LONG_S $12, PT_R12(sp) |
64 | LONG_S $13, PT_R13(sp) | |
65 | LONG_S $14, PT_R14(sp) | |
66 | LONG_S $15, PT_R15(sp) | |
67 | LONG_S $24, PT_R24(sp) | |
68 | .endm | |
69 | ||
70 | .macro SAVE_STATIC | |
71 | LONG_S $16, PT_R16(sp) | |
72 | LONG_S $17, PT_R17(sp) | |
73 | LONG_S $18, PT_R18(sp) | |
74 | LONG_S $19, PT_R19(sp) | |
75 | LONG_S $20, PT_R20(sp) | |
76 | LONG_S $21, PT_R21(sp) | |
77 | LONG_S $22, PT_R22(sp) | |
78 | LONG_S $23, PT_R23(sp) | |
79 | LONG_S $30, PT_R30(sp) | |
80 | .endm | |
81 | ||
82 | #ifdef CONFIG_SMP | |
41c594ab | 83 | #ifdef CONFIG_MIPS_MT_SMTC |
9b95e629 | 84 | #define PTEBASE_SHIFT 19 /* TCBIND */ |
41c594ab | 85 | #else |
9b95e629 | 86 | #define PTEBASE_SHIFT 23 /* CONTEXT */ |
1da177e4 | 87 | #endif |
9b95e629 | 88 | .macro get_saved_sp /* SMP variation */ |
41c594ab | 89 | #ifdef CONFIG_MIPS_MT_SMTC |
9b95e629 | 90 | mfc0 k0, CP0_TCBIND |
41c594ab | 91 | #else |
9b95e629 AN |
92 | MFC0 k0, CP0_CONTEXT |
93 | #endif | |
054c51b4 FBH |
94 | #if defined(CONFIG_32BIT) || defined(KBUILD_64BIT_SYM32) |
95 | lui k1, %hi(kernelsp) | |
96 | #else | |
9b95e629 AN |
97 | lui k1, %highest(kernelsp) |
98 | daddiu k1, %higher(kernelsp) | |
99 | dsll k1, 16 | |
100 | daddiu k1, %hi(kernelsp) | |
101 | dsll k1, 16 | |
9b95e629 AN |
102 | #endif |
103 | LONG_SRL k0, PTEBASE_SHIFT | |
104 | LONG_ADDU k1, k0 | |
85b6e818 | 105 | LONG_L k1, %lo(kernelsp)(k1) |
1da177e4 LT |
106 | .endm |
107 | ||
108 | .macro set_saved_sp stackp temp temp2 | |
41c594ab RB |
109 | #ifdef CONFIG_MIPS_MT_SMTC |
110 | mfc0 \temp, CP0_TCBIND | |
41c594ab | 111 | #else |
1b3a6e97 | 112 | MFC0 \temp, CP0_CONTEXT |
1da177e4 | 113 | #endif |
9b95e629 | 114 | LONG_SRL \temp, PTEBASE_SHIFT |
9556ac2f | 115 | LONG_S \stackp, kernelsp(\temp) |
1da177e4 LT |
116 | .endm |
117 | #else | |
118 | .macro get_saved_sp /* Uniprocessor variation */ | |
054c51b4 FBH |
119 | #if defined(CONFIG_32BIT) || defined(KBUILD_64BIT_SYM32) |
120 | lui k1, %hi(kernelsp) | |
121 | #else | |
9556ac2f TS |
122 | lui k1, %highest(kernelsp) |
123 | daddiu k1, %higher(kernelsp) | |
124 | dsll k1, k1, 16 | |
125 | daddiu k1, %hi(kernelsp) | |
126 | dsll k1, k1, 16 | |
9556ac2f | 127 | #endif |
1da177e4 LT |
128 | LONG_L k1, %lo(kernelsp)(k1) |
129 | .endm | |
130 | ||
131 | .macro set_saved_sp stackp temp temp2 | |
132 | LONG_S \stackp, kernelsp | |
133 | .endm | |
134 | #endif | |
135 | ||
136 | .macro SAVE_SOME | |
137 | .set push | |
138 | .set noat | |
139 | .set reorder | |
140 | mfc0 k0, CP0_STATUS | |
141 | sll k0, 3 /* extract cu0 bit */ | |
142 | .set noreorder | |
143 | bltz k0, 8f | |
144 | move k1, sp | |
145 | .set reorder | |
146 | /* Called from user mode, new stack. */ | |
147 | get_saved_sp | |
148 | 8: move k0, sp | |
149 | PTR_SUBU sp, k1, PT_SIZE | |
150 | LONG_S k0, PT_R29(sp) | |
151 | LONG_S $3, PT_R3(sp) | |
41c594ab RB |
152 | /* |
153 | * You might think that you don't need to save $0, | |
154 | * but the FPU emulator and gdb remote debug stub | |
155 | * need it to operate correctly | |
156 | */ | |
1da177e4 LT |
157 | LONG_S $0, PT_R0(sp) |
158 | mfc0 v1, CP0_STATUS | |
159 | LONG_S $2, PT_R2(sp) | |
160 | LONG_S v1, PT_STATUS(sp) | |
41c594ab RB |
161 | #ifdef CONFIG_MIPS_MT_SMTC |
162 | /* | |
163 | * Ideally, these instructions would be shuffled in | |
164 | * to cover the pipeline delay. | |
165 | */ | |
166 | .set mips32 | |
167 | mfc0 v1, CP0_TCSTATUS | |
168 | .set mips0 | |
169 | LONG_S v1, PT_TCSTATUS(sp) | |
170 | #endif /* CONFIG_MIPS_MT_SMTC */ | |
1da177e4 LT |
171 | LONG_S $4, PT_R4(sp) |
172 | mfc0 v1, CP0_CAUSE | |
173 | LONG_S $5, PT_R5(sp) | |
174 | LONG_S v1, PT_CAUSE(sp) | |
175 | LONG_S $6, PT_R6(sp) | |
176 | MFC0 v1, CP0_EPC | |
177 | LONG_S $7, PT_R7(sp) | |
875d43e7 | 178 | #ifdef CONFIG_64BIT |
1da177e4 LT |
179 | LONG_S $8, PT_R8(sp) |
180 | LONG_S $9, PT_R9(sp) | |
181 | #endif | |
182 | LONG_S v1, PT_EPC(sp) | |
183 | LONG_S $25, PT_R25(sp) | |
184 | LONG_S $28, PT_R28(sp) | |
185 | LONG_S $31, PT_R31(sp) | |
186 | ori $28, sp, _THREAD_MASK | |
187 | xori $28, _THREAD_MASK | |
188 | .set pop | |
189 | .endm | |
190 | ||
191 | .macro SAVE_ALL | |
192 | SAVE_SOME | |
193 | SAVE_AT | |
194 | SAVE_TEMP | |
195 | SAVE_STATIC | |
196 | .endm | |
197 | ||
198 | .macro RESTORE_AT | |
199 | .set push | |
200 | .set noat | |
201 | LONG_L $1, PT_R1(sp) | |
202 | .set pop | |
203 | .endm | |
204 | ||
205 | .macro RESTORE_TEMP | |
9693a853 FBH |
206 | #ifdef CONFIG_CPU_HAS_SMARTMIPS |
207 | LONG_L $24, PT_ACX(sp) | |
208 | mtlhx $24 | |
209 | LONG_L $24, PT_HI(sp) | |
210 | mtlhx $24 | |
1da177e4 | 211 | LONG_L $24, PT_LO(sp) |
9693a853 FBH |
212 | mtlhx $24 |
213 | #else | |
214 | LONG_L $24, PT_LO(sp) | |
215 | mtlo $24 | |
216 | LONG_L $24, PT_HI(sp) | |
217 | mthi $24 | |
218 | #endif | |
875d43e7 | 219 | #ifdef CONFIG_32BIT |
1da177e4 LT |
220 | LONG_L $8, PT_R8(sp) |
221 | LONG_L $9, PT_R9(sp) | |
222 | #endif | |
1da177e4 LT |
223 | LONG_L $10, PT_R10(sp) |
224 | LONG_L $11, PT_R11(sp) | |
1da177e4 LT |
225 | LONG_L $12, PT_R12(sp) |
226 | LONG_L $13, PT_R13(sp) | |
227 | LONG_L $14, PT_R14(sp) | |
228 | LONG_L $15, PT_R15(sp) | |
229 | LONG_L $24, PT_R24(sp) | |
230 | .endm | |
231 | ||
232 | .macro RESTORE_STATIC | |
233 | LONG_L $16, PT_R16(sp) | |
234 | LONG_L $17, PT_R17(sp) | |
235 | LONG_L $18, PT_R18(sp) | |
236 | LONG_L $19, PT_R19(sp) | |
237 | LONG_L $20, PT_R20(sp) | |
238 | LONG_L $21, PT_R21(sp) | |
239 | LONG_L $22, PT_R22(sp) | |
240 | LONG_L $23, PT_R23(sp) | |
241 | LONG_L $30, PT_R30(sp) | |
242 | .endm | |
243 | ||
244 | #if defined(CONFIG_CPU_R3000) || defined(CONFIG_CPU_TX39XX) | |
245 | ||
246 | .macro RESTORE_SOME | |
247 | .set push | |
248 | .set reorder | |
249 | .set noat | |
250 | mfc0 a0, CP0_STATUS | |
1da177e4 | 251 | li v1, 0xff00 |
fbf6ede2 MR |
252 | ori a0, STATMASK |
253 | xori a0, STATMASK | |
254 | mtc0 a0, CP0_STATUS | |
1da177e4 LT |
255 | and a0, v1 |
256 | LONG_L v0, PT_STATUS(sp) | |
257 | nor v1, $0, v1 | |
258 | and v0, v1 | |
259 | or v0, a0 | |
260 | mtc0 v0, CP0_STATUS | |
261 | LONG_L $31, PT_R31(sp) | |
262 | LONG_L $28, PT_R28(sp) | |
263 | LONG_L $25, PT_R25(sp) | |
1da177e4 LT |
264 | LONG_L $7, PT_R7(sp) |
265 | LONG_L $6, PT_R6(sp) | |
266 | LONG_L $5, PT_R5(sp) | |
267 | LONG_L $4, PT_R4(sp) | |
268 | LONG_L $3, PT_R3(sp) | |
269 | LONG_L $2, PT_R2(sp) | |
270 | .set pop | |
271 | .endm | |
272 | ||
273 | .macro RESTORE_SP_AND_RET | |
274 | .set push | |
275 | .set noreorder | |
276 | LONG_L k0, PT_EPC(sp) | |
277 | LONG_L sp, PT_R29(sp) | |
278 | jr k0 | |
279 | rfe | |
280 | .set pop | |
281 | .endm | |
282 | ||
283 | #else | |
1da177e4 LT |
284 | .macro RESTORE_SOME |
285 | .set push | |
286 | .set reorder | |
287 | .set noat | |
41c594ab RB |
288 | #ifdef CONFIG_MIPS_MT_SMTC |
289 | .set mips32r2 | |
290 | /* | |
291 | * This may not really be necessary if ints are already | |
292 | * inhibited here. | |
293 | */ | |
294 | mfc0 v0, CP0_TCSTATUS | |
295 | ori v0, TCSTATUS_IXMT | |
296 | mtc0 v0, CP0_TCSTATUS | |
4277ff5e | 297 | _ehb |
41c594ab RB |
298 | DMT 5 # dmt a1 |
299 | jal mips_ihb | |
300 | #endif /* CONFIG_MIPS_MT_SMTC */ | |
1da177e4 | 301 | mfc0 a0, CP0_STATUS |
41c594ab RB |
302 | ori a0, STATMASK |
303 | xori a0, STATMASK | |
1da177e4 LT |
304 | mtc0 a0, CP0_STATUS |
305 | li v1, 0xff00 | |
306 | and a0, v1 | |
307 | LONG_L v0, PT_STATUS(sp) | |
308 | nor v1, $0, v1 | |
309 | and v0, v1 | |
310 | or v0, a0 | |
311 | mtc0 v0, CP0_STATUS | |
41c594ab RB |
312 | #ifdef CONFIG_MIPS_MT_SMTC |
313 | /* | |
314 | * Only after EXL/ERL have been restored to status can we | |
315 | * restore TCStatus.IXMT. | |
316 | */ | |
317 | LONG_L v1, PT_TCSTATUS(sp) | |
4277ff5e | 318 | _ehb |
41c594ab RB |
319 | mfc0 v0, CP0_TCSTATUS |
320 | andi v1, TCSTATUS_IXMT | |
321 | /* We know that TCStatua.IXMT should be set from above */ | |
322 | xori v0, v0, TCSTATUS_IXMT | |
323 | or v0, v0, v1 | |
324 | mtc0 v0, CP0_TCSTATUS | |
4277ff5e | 325 | _ehb |
41c594ab RB |
326 | andi a1, a1, VPECONTROL_TE |
327 | beqz a1, 1f | |
328 | emt | |
329 | 1: | |
330 | .set mips0 | |
331 | #endif /* CONFIG_MIPS_MT_SMTC */ | |
1da177e4 LT |
332 | LONG_L v1, PT_EPC(sp) |
333 | MTC0 v1, CP0_EPC | |
334 | LONG_L $31, PT_R31(sp) | |
335 | LONG_L $28, PT_R28(sp) | |
336 | LONG_L $25, PT_R25(sp) | |
875d43e7 | 337 | #ifdef CONFIG_64BIT |
1da177e4 LT |
338 | LONG_L $8, PT_R8(sp) |
339 | LONG_L $9, PT_R9(sp) | |
340 | #endif | |
341 | LONG_L $7, PT_R7(sp) | |
342 | LONG_L $6, PT_R6(sp) | |
343 | LONG_L $5, PT_R5(sp) | |
344 | LONG_L $4, PT_R4(sp) | |
345 | LONG_L $3, PT_R3(sp) | |
346 | LONG_L $2, PT_R2(sp) | |
347 | .set pop | |
348 | .endm | |
349 | ||
350 | .macro RESTORE_SP_AND_RET | |
351 | LONG_L sp, PT_R29(sp) | |
352 | .set mips3 | |
353 | eret | |
354 | .set mips0 | |
355 | .endm | |
356 | ||
357 | #endif | |
358 | ||
359 | .macro RESTORE_SP | |
360 | LONG_L sp, PT_R29(sp) | |
361 | .endm | |
362 | ||
363 | .macro RESTORE_ALL | |
364 | RESTORE_TEMP | |
365 | RESTORE_STATIC | |
366 | RESTORE_AT | |
367 | RESTORE_SOME | |
368 | RESTORE_SP | |
369 | .endm | |
370 | ||
371 | .macro RESTORE_ALL_AND_RET | |
372 | RESTORE_TEMP | |
373 | RESTORE_STATIC | |
374 | RESTORE_AT | |
375 | RESTORE_SOME | |
376 | RESTORE_SP_AND_RET | |
377 | .endm | |
378 | ||
379 | /* | |
380 | * Move to kernel mode and disable interrupts. | |
381 | * Set cp0 enable bit as sign that we're running on the kernel stack | |
382 | */ | |
383 | .macro CLI | |
41c594ab | 384 | #if !defined(CONFIG_MIPS_MT_SMTC) |
1da177e4 | 385 | mfc0 t0, CP0_STATUS |
fbf6ede2 | 386 | li t1, ST0_CU0 | STATMASK |
1da177e4 | 387 | or t0, t1 |
fbf6ede2 | 388 | xori t0, STATMASK |
1da177e4 | 389 | mtc0 t0, CP0_STATUS |
41c594ab RB |
390 | #else /* CONFIG_MIPS_MT_SMTC */ |
391 | /* | |
392 | * For SMTC, we need to set privilege | |
393 | * and disable interrupts only for the | |
394 | * current TC, using the TCStatus register. | |
395 | */ | |
21a151d8 | 396 | mfc0 t0, CP0_TCSTATUS |
41c594ab RB |
397 | /* Fortunately CU 0 is in the same place in both registers */ |
398 | /* Set TCU0, TMX, TKSU (for later inversion) and IXMT */ | |
399 | li t1, ST0_CU0 | 0x08001c00 | |
21a151d8 | 400 | or t0, t1 |
41c594ab RB |
401 | /* Clear TKSU, leave IXMT */ |
402 | xori t0, 0x00001800 | |
403 | mtc0 t0, CP0_TCSTATUS | |
4277ff5e | 404 | _ehb |
41c594ab RB |
405 | /* We need to leave the global IE bit set, but clear EXL...*/ |
406 | mfc0 t0, CP0_STATUS | |
407 | ori t0, ST0_EXL | ST0_ERL | |
408 | xori t0, ST0_EXL | ST0_ERL | |
409 | mtc0 t0, CP0_STATUS | |
410 | #endif /* CONFIG_MIPS_MT_SMTC */ | |
1da177e4 LT |
411 | irq_disable_hazard |
412 | .endm | |
413 | ||
414 | /* | |
415 | * Move to kernel mode and enable interrupts. | |
416 | * Set cp0 enable bit as sign that we're running on the kernel stack | |
417 | */ | |
418 | .macro STI | |
41c594ab | 419 | #if !defined(CONFIG_MIPS_MT_SMTC) |
1da177e4 | 420 | mfc0 t0, CP0_STATUS |
fbf6ede2 | 421 | li t1, ST0_CU0 | STATMASK |
1da177e4 | 422 | or t0, t1 |
fbf6ede2 | 423 | xori t0, STATMASK & ~1 |
1da177e4 | 424 | mtc0 t0, CP0_STATUS |
41c594ab RB |
425 | #else /* CONFIG_MIPS_MT_SMTC */ |
426 | /* | |
427 | * For SMTC, we need to set privilege | |
428 | * and enable interrupts only for the | |
429 | * current TC, using the TCStatus register. | |
430 | */ | |
4277ff5e | 431 | _ehb |
21a151d8 | 432 | mfc0 t0, CP0_TCSTATUS |
41c594ab RB |
433 | /* Fortunately CU 0 is in the same place in both registers */ |
434 | /* Set TCU0, TKSU (for later inversion) and IXMT */ | |
435 | li t1, ST0_CU0 | 0x08001c00 | |
21a151d8 | 436 | or t0, t1 |
41c594ab RB |
437 | /* Clear TKSU *and* IXMT */ |
438 | xori t0, 0x00001c00 | |
439 | mtc0 t0, CP0_TCSTATUS | |
4277ff5e | 440 | _ehb |
41c594ab RB |
441 | /* We need to leave the global IE bit set, but clear EXL...*/ |
442 | mfc0 t0, CP0_STATUS | |
443 | ori t0, ST0_EXL | |
444 | xori t0, ST0_EXL | |
445 | mtc0 t0, CP0_STATUS | |
446 | /* irq_enable_hazard below should expand to EHB for 24K/34K cpus */ | |
447 | #endif /* CONFIG_MIPS_MT_SMTC */ | |
1da177e4 LT |
448 | irq_enable_hazard |
449 | .endm | |
450 | ||
451 | /* | |
fbf6ede2 MR |
452 | * Just move to kernel mode and leave interrupts as they are. Note |
453 | * for the R3000 this means copying the previous enable from IEp. | |
1da177e4 LT |
454 | * Set cp0 enable bit as sign that we're running on the kernel stack |
455 | */ | |
456 | .macro KMODE | |
41c594ab RB |
457 | #ifdef CONFIG_MIPS_MT_SMTC |
458 | /* | |
459 | * This gets baroque in SMTC. We want to | |
460 | * protect the non-atomic clearing of EXL | |
461 | * with DMT/EMT, but we don't want to take | |
462 | * an interrupt while DMT is still in effect. | |
463 | */ | |
464 | ||
465 | /* KMODE gets invoked from both reorder and noreorder code */ | |
466 | .set push | |
467 | .set mips32r2 | |
468 | .set noreorder | |
469 | mfc0 v0, CP0_TCSTATUS | |
470 | andi v1, v0, TCSTATUS_IXMT | |
471 | ori v0, TCSTATUS_IXMT | |
472 | mtc0 v0, CP0_TCSTATUS | |
4277ff5e | 473 | _ehb |
41c594ab RB |
474 | DMT 2 # dmt v0 |
475 | /* | |
476 | * We don't know a priori if ra is "live" | |
477 | */ | |
478 | move t0, ra | |
479 | jal mips_ihb | |
480 | nop /* delay slot */ | |
481 | move ra, t0 | |
482 | #endif /* CONFIG_MIPS_MT_SMTC */ | |
1da177e4 | 483 | mfc0 t0, CP0_STATUS |
fbf6ede2 MR |
484 | li t1, ST0_CU0 | (STATMASK & ~1) |
485 | #if defined(CONFIG_CPU_R3000) || defined(CONFIG_CPU_TX39XX) | |
486 | andi t2, t0, ST0_IEP | |
487 | srl t2, 2 | |
488 | or t0, t2 | |
489 | #endif | |
1da177e4 | 490 | or t0, t1 |
fbf6ede2 | 491 | xori t0, STATMASK & ~1 |
1da177e4 | 492 | mtc0 t0, CP0_STATUS |
41c594ab | 493 | #ifdef CONFIG_MIPS_MT_SMTC |
4277ff5e | 494 | _ehb |
41c594ab RB |
495 | andi v0, v0, VPECONTROL_TE |
496 | beqz v0, 2f | |
497 | nop /* delay slot */ | |
498 | emt | |
499 | 2: | |
500 | mfc0 v0, CP0_TCSTATUS | |
501 | /* Clear IXMT, then OR in previous value */ | |
502 | ori v0, TCSTATUS_IXMT | |
503 | xori v0, TCSTATUS_IXMT | |
504 | or v0, v1, v0 | |
505 | mtc0 v0, CP0_TCSTATUS | |
506 | /* | |
507 | * irq_disable_hazard below should expand to EHB | |
508 | * on 24K/34K CPUS | |
509 | */ | |
510 | .set pop | |
511 | #endif /* CONFIG_MIPS_MT_SMTC */ | |
1da177e4 LT |
512 | irq_disable_hazard |
513 | .endm | |
514 | ||
515 | #endif /* _ASM_STACKFRAME_H */ |