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63dafe57 BB |
1 | #ifndef __HEAD_BOOKE_H__ |
2 | #define __HEAD_BOOKE_H__ | |
3 | ||
4 | /* | |
5 | * Macros used for common Book-e exception handling | |
6 | */ | |
7 | ||
8 | #define SET_IVOR(vector_number, vector_label) \ | |
9 | li r26,vector_label@l; \ | |
10 | mtspr SPRN_IVOR##vector_number,r26; \ | |
11 | sync | |
12 | ||
13 | #define NORMAL_EXCEPTION_PROLOG \ | |
14 | mtspr SPRN_SPRG0,r10; /* save two registers to work with */\ | |
15 | mtspr SPRN_SPRG1,r11; \ | |
16 | mtspr SPRN_SPRG4W,r1; \ | |
17 | mfcr r10; /* save CR in r10 for now */\ | |
18 | mfspr r11,SPRN_SRR1; /* check whether user or kernel */\ | |
19 | andi. r11,r11,MSR_PR; \ | |
20 | beq 1f; \ | |
21 | mfspr r1,SPRN_SPRG3; /* if from user, start at top of */\ | |
22 | lwz r1,THREAD_INFO-THREAD(r1); /* this thread's kernel stack */\ | |
23 | addi r1,r1,THREAD_SIZE; \ | |
24 | 1: subi r1,r1,INT_FRAME_SIZE; /* Allocate an exception frame */\ | |
25 | mr r11,r1; \ | |
26 | stw r10,_CCR(r11); /* save various registers */\ | |
27 | stw r12,GPR12(r11); \ | |
28 | stw r9,GPR9(r11); \ | |
29 | mfspr r10,SPRN_SPRG0; \ | |
30 | stw r10,GPR10(r11); \ | |
31 | mfspr r12,SPRN_SPRG1; \ | |
32 | stw r12,GPR11(r11); \ | |
33 | mflr r10; \ | |
34 | stw r10,_LINK(r11); \ | |
35 | mfspr r10,SPRN_SPRG4R; \ | |
36 | mfspr r12,SPRN_SRR0; \ | |
37 | stw r10,GPR1(r11); \ | |
38 | mfspr r9,SPRN_SRR1; \ | |
39 | stw r10,0(r11); \ | |
40 | rlwinm r9,r9,0,14,12; /* clear MSR_WE (necessary?) */\ | |
41 | stw r0,GPR0(r11); \ | |
42 | SAVE_4GPRS(3, r11); \ | |
43 | SAVE_2GPRS(7, r11) | |
44 | ||
45 | /* To handle the additional exception priority levels on 40x and Book-E | |
bcf0b088 | 46 | * processors we allocate a stack per additional priority level. |
63dafe57 BB |
47 | * |
48 | * On 40x critical is the only additional level | |
49 | * On 44x/e500 we have critical and machine check | |
50 | * On e200 we have critical and debug (machine check occurs via critical) | |
51 | * | |
52 | * Additionally we reserve a SPRG for each priority level so we can free up a | |
53 | * GPR to use as the base for indirect access to the exception stacks. This | |
54 | * is necessary since the MMU is always on, for Book-E parts, and the stacks | |
55 | * are offset from KERNELBASE. | |
56 | * | |
eb0cd5fd KG |
57 | * There is some space optimization to be had here if desired. However |
58 | * to allow for a common kernel with support for debug exceptions either | |
59 | * going to critical or their own debug level we aren't currently | |
60 | * providing configurations that micro-optimize space usage. | |
63dafe57 | 61 | */ |
63dafe57 BB |
62 | |
63 | /* CRIT_SPRG only used in critical exception handling */ | |
64 | #define CRIT_SPRG SPRN_SPRG2 | |
65 | /* MCHECK_SPRG only used in machine check exception handling */ | |
66 | #define MCHECK_SPRG SPRN_SPRG6W | |
67 | ||
bcf0b088 KG |
68 | #define MCHECK_STACK_BASE mcheckirq_ctx |
69 | #define CRIT_STACK_BASE critirq_ctx | |
63dafe57 | 70 | |
3dfa8773 | 71 | /* only on e500mc/e200 */ |
bcf0b088 | 72 | #define DEBUG_STACK_BASE dbgirq_ctx |
3dfa8773 KG |
73 | #ifdef CONFIG_PPC_E500MC |
74 | #define DEBUG_SPRG SPRN_SPRG9 | |
75 | #else | |
63dafe57 | 76 | #define DEBUG_SPRG SPRN_SPRG6W |
3dfa8773 | 77 | #endif |
63dafe57 | 78 | |
fca622c5 | 79 | #define EXC_LVL_FRAME_OVERHEAD (THREAD_SIZE - INT_FRAME_SIZE - EXC_LVL_SIZE) |
369e757b | 80 | |
63dafe57 BB |
81 | #ifdef CONFIG_SMP |
82 | #define BOOKE_LOAD_EXC_LEVEL_STACK(level) \ | |
83 | mfspr r8,SPRN_PIR; \ | |
bcf0b088 KG |
84 | slwi r8,r8,2; \ |
85 | addis r8,r8,level##_STACK_BASE@ha; \ | |
86 | lwz r8,level##_STACK_BASE@l(r8); \ | |
369e757b | 87 | addi r8,r8,EXC_LVL_FRAME_OVERHEAD; |
63dafe57 BB |
88 | #else |
89 | #define BOOKE_LOAD_EXC_LEVEL_STACK(level) \ | |
bcf0b088 KG |
90 | lis r8,level##_STACK_BASE@ha; \ |
91 | lwz r8,level##_STACK_BASE@l(r8); \ | |
369e757b | 92 | addi r8,r8,EXC_LVL_FRAME_OVERHEAD; |
63dafe57 BB |
93 | #endif |
94 | ||
95 | /* | |
96 | * Exception prolog for critical/machine check exceptions. This is a | |
97 | * little different from the normal exception prolog above since a | |
98 | * critical/machine check exception can potentially occur at any point | |
99 | * during normal exception processing. Thus we cannot use the same SPRG | |
100 | * registers as the normal prolog above. Instead we use a portion of the | |
101 | * critical/machine check exception stack at low physical addresses. | |
102 | */ | |
103 | #define EXC_LEVEL_EXCEPTION_PROLOG(exc_level, exc_level_srr0, exc_level_srr1) \ | |
104 | mtspr exc_level##_SPRG,r8; \ | |
105 | BOOKE_LOAD_EXC_LEVEL_STACK(exc_level);/* r8 points to the exc_level stack*/ \ | |
369e757b KG |
106 | stw r9,GPR9(r8); /* save various registers */\ |
107 | mfcr r9; /* save CR in r9 for now */\ | |
108 | stw r10,GPR10(r8); \ | |
109 | stw r11,GPR11(r8); \ | |
110 | stw r9,_CCR(r8); /* save CR on stack */\ | |
111 | mfspr r10,exc_level_srr1; /* check whether user or kernel */\ | |
112 | andi. r10,r10,MSR_PR; \ | |
63dafe57 BB |
113 | mfspr r11,SPRN_SPRG3; /* if from user, start at top of */\ |
114 | lwz r11,THREAD_INFO-THREAD(r11); /* this thread's kernel stack */\ | |
369e757b KG |
115 | addi r11,r11,EXC_LVL_FRAME_OVERHEAD; /* allocate stack frame */\ |
116 | beq 1f; \ | |
117 | /* COMING FROM USER MODE */ \ | |
118 | stw r9,_CCR(r11); /* save CR */\ | |
119 | lwz r10,GPR10(r8); /* copy regs from exception stack */\ | |
120 | lwz r9,GPR9(r8); \ | |
121 | stw r10,GPR10(r11); \ | |
122 | lwz r10,GPR11(r8); \ | |
63dafe57 | 123 | stw r9,GPR9(r11); \ |
369e757b KG |
124 | stw r10,GPR11(r11); \ |
125 | b 2f; \ | |
126 | /* COMING FROM PRIV MODE */ \ | |
127 | 1: lwz r9,TI_FLAGS-EXC_LVL_FRAME_OVERHEAD(r11); \ | |
128 | lwz r10,TI_PREEMPT-EXC_LVL_FRAME_OVERHEAD(r11); \ | |
129 | stw r9,TI_FLAGS-EXC_LVL_FRAME_OVERHEAD(r8); \ | |
130 | stw r10,TI_PREEMPT-EXC_LVL_FRAME_OVERHEAD(r8); \ | |
131 | lwz r9,TI_TASK-EXC_LVL_FRAME_OVERHEAD(r11); \ | |
132 | stw r9,TI_TASK-EXC_LVL_FRAME_OVERHEAD(r8); \ | |
133 | mr r11,r8; \ | |
134 | 2: mfspr r8,exc_level##_SPRG; \ | |
135 | stw r12,GPR12(r11); /* save various registers */\ | |
63dafe57 BB |
136 | mflr r10; \ |
137 | stw r10,_LINK(r11); \ | |
138 | mfspr r12,SPRN_DEAR; /* save DEAR and ESR in the frame */\ | |
139 | stw r12,_DEAR(r11); /* since they may have had stuff */\ | |
140 | mfspr r9,SPRN_ESR; /* in them at the point where the */\ | |
141 | stw r9,_ESR(r11); /* exception was taken */\ | |
142 | mfspr r12,exc_level_srr0; \ | |
143 | stw r1,GPR1(r11); \ | |
144 | mfspr r9,exc_level_srr1; \ | |
145 | stw r1,0(r11); \ | |
146 | mr r1,r11; \ | |
147 | rlwinm r9,r9,0,14,12; /* clear MSR_WE (necessary?) */\ | |
148 | stw r0,GPR0(r11); \ | |
149 | SAVE_4GPRS(3, r11); \ | |
150 | SAVE_2GPRS(7, r11) | |
151 | ||
152 | #define CRITICAL_EXCEPTION_PROLOG \ | |
153 | EXC_LEVEL_EXCEPTION_PROLOG(CRIT, SPRN_CSRR0, SPRN_CSRR1) | |
154 | #define DEBUG_EXCEPTION_PROLOG \ | |
155 | EXC_LEVEL_EXCEPTION_PROLOG(DEBUG, SPRN_DSRR0, SPRN_DSRR1) | |
156 | #define MCHECK_EXCEPTION_PROLOG \ | |
157 | EXC_LEVEL_EXCEPTION_PROLOG(MCHECK, SPRN_MCSRR0, SPRN_MCSRR1) | |
158 | ||
159 | /* | |
160 | * Exception vectors. | |
161 | */ | |
162 | #define START_EXCEPTION(label) \ | |
163 | .align 5; \ | |
164 | label: | |
165 | ||
166 | #define FINISH_EXCEPTION(func) \ | |
167 | bl transfer_to_handler_full; \ | |
168 | .long func; \ | |
169 | .long ret_from_except_full | |
170 | ||
171 | #define EXCEPTION(n, label, hdlr, xfer) \ | |
172 | START_EXCEPTION(label); \ | |
173 | NORMAL_EXCEPTION_PROLOG; \ | |
174 | addi r3,r1,STACK_FRAME_OVERHEAD; \ | |
175 | xfer(n, hdlr) | |
176 | ||
177 | #define CRITICAL_EXCEPTION(n, label, hdlr) \ | |
178 | START_EXCEPTION(label); \ | |
179 | CRITICAL_EXCEPTION_PROLOG; \ | |
180 | addi r3,r1,STACK_FRAME_OVERHEAD; \ | |
181 | EXC_XFER_TEMPLATE(hdlr, n+2, (MSR_KERNEL & ~(MSR_ME|MSR_DE|MSR_CE)), \ | |
182 | NOCOPY, crit_transfer_to_handler, \ | |
183 | ret_from_crit_exc) | |
184 | ||
185 | #define MCHECK_EXCEPTION(n, label, hdlr) \ | |
186 | START_EXCEPTION(label); \ | |
187 | MCHECK_EXCEPTION_PROLOG; \ | |
188 | mfspr r5,SPRN_ESR; \ | |
189 | stw r5,_ESR(r11); \ | |
190 | addi r3,r1,STACK_FRAME_OVERHEAD; \ | |
47c0bd1a | 191 | EXC_XFER_TEMPLATE(hdlr, n+4, (MSR_KERNEL & ~(MSR_ME|MSR_DE|MSR_CE)), \ |
63dafe57 BB |
192 | NOCOPY, mcheck_transfer_to_handler, \ |
193 | ret_from_mcheck_exc) | |
194 | ||
195 | #define EXC_XFER_TEMPLATE(hdlr, trap, msr, copyee, tfer, ret) \ | |
196 | li r10,trap; \ | |
197 | stw r10,_TRAP(r11); \ | |
198 | lis r10,msr@h; \ | |
199 | ori r10,r10,msr@l; \ | |
200 | copyee(r10, r9); \ | |
201 | bl tfer; \ | |
202 | .long hdlr; \ | |
203 | .long ret | |
204 | ||
205 | #define COPY_EE(d, s) rlwimi d,s,0,16,16 | |
206 | #define NOCOPY(d, s) | |
207 | ||
208 | #define EXC_XFER_STD(n, hdlr) \ | |
209 | EXC_XFER_TEMPLATE(hdlr, n, MSR_KERNEL, NOCOPY, transfer_to_handler_full, \ | |
210 | ret_from_except_full) | |
211 | ||
212 | #define EXC_XFER_LITE(n, hdlr) \ | |
213 | EXC_XFER_TEMPLATE(hdlr, n+1, MSR_KERNEL, NOCOPY, transfer_to_handler, \ | |
214 | ret_from_except) | |
215 | ||
216 | #define EXC_XFER_EE(n, hdlr) \ | |
217 | EXC_XFER_TEMPLATE(hdlr, n, MSR_KERNEL, COPY_EE, transfer_to_handler_full, \ | |
218 | ret_from_except_full) | |
219 | ||
220 | #define EXC_XFER_EE_LITE(n, hdlr) \ | |
221 | EXC_XFER_TEMPLATE(hdlr, n+1, MSR_KERNEL, COPY_EE, transfer_to_handler, \ | |
222 | ret_from_except) | |
223 | ||
224 | /* Check for a single step debug exception while in an exception | |
225 | * handler before state has been saved. This is to catch the case | |
226 | * where an instruction that we are trying to single step causes | |
227 | * an exception (eg ITLB/DTLB miss) and thus the first instruction of | |
228 | * the exception handler generates a single step debug exception. | |
229 | * | |
230 | * If we get a debug trap on the first instruction of an exception handler, | |
231 | * we reset the MSR_DE in the _exception handler's_ MSR (the debug trap is | |
232 | * a critical exception, so we are using SPRN_CSRR1 to manipulate the MSR). | |
233 | * The exception handler was handling a non-critical interrupt, so it will | |
234 | * save (and later restore) the MSR via SPRN_CSRR1, which will still have | |
235 | * the MSR_DE bit set. | |
236 | */ | |
eb0cd5fd KG |
237 | #define DEBUG_DEBUG_EXCEPTION \ |
238 | START_EXCEPTION(DebugDebug); \ | |
63dafe57 BB |
239 | DEBUG_EXCEPTION_PROLOG; \ |
240 | \ | |
241 | /* \ | |
242 | * If there is a single step or branch-taken exception in an \ | |
243 | * exception entry sequence, it was probably meant to apply to \ | |
244 | * the code where the exception occurred (since exception entry \ | |
245 | * doesn't turn off DE automatically). We simulate the effect \ | |
246 | * of turning off DE on entry to an exception handler by turning \ | |
fec6a822 | 247 | * off DE in the DSRR1 value and clearing the debug status. \ |
63dafe57 BB |
248 | */ \ |
249 | mfspr r10,SPRN_DBSR; /* check single-step/branch taken */ \ | |
250 | andis. r10,r10,DBSR_IC@h; \ | |
251 | beq+ 2f; \ | |
252 | \ | |
253 | lis r10,KERNELBASE@h; /* check if exception in vectors */ \ | |
254 | ori r10,r10,KERNELBASE@l; \ | |
255 | cmplw r12,r10; \ | |
256 | blt+ 2f; /* addr below exception vectors */ \ | |
257 | \ | |
eb0cd5fd KG |
258 | lis r10,DebugDebug@h; \ |
259 | ori r10,r10,DebugDebug@l; \ | |
63dafe57 BB |
260 | cmplw r12,r10; \ |
261 | bgt+ 2f; /* addr above exception vectors */ \ | |
262 | \ | |
263 | /* here it looks like we got an inappropriate debug exception. */ \ | |
264 | 1: rlwinm r9,r9,0,~MSR_DE; /* clear DE in the CDRR1 value */ \ | |
265 | lis r10,DBSR_IC@h; /* clear the IC event */ \ | |
266 | mtspr SPRN_DBSR,r10; \ | |
267 | /* restore state and get out */ \ | |
268 | lwz r10,_CCR(r11); \ | |
269 | lwz r0,GPR0(r11); \ | |
270 | lwz r1,GPR1(r11); \ | |
271 | mtcrf 0x80,r10; \ | |
272 | mtspr SPRN_DSRR0,r12; \ | |
273 | mtspr SPRN_DSRR1,r9; \ | |
274 | lwz r9,GPR9(r11); \ | |
275 | lwz r12,GPR12(r11); \ | |
276 | mtspr DEBUG_SPRG,r8; \ | |
277 | BOOKE_LOAD_EXC_LEVEL_STACK(DEBUG); /* r8 points to the debug stack */ \ | |
369e757b KG |
278 | lwz r10,GPR10(r8); \ |
279 | lwz r11,GPR11(r8); \ | |
63dafe57 BB |
280 | mfspr r8,DEBUG_SPRG; \ |
281 | \ | |
282 | RFDI; \ | |
283 | b .; \ | |
284 | \ | |
fec6a822 | 285 | /* continue normal handling for a debug exception... */ \ |
63dafe57 BB |
286 | 2: mfspr r4,SPRN_DBSR; \ |
287 | addi r3,r1,STACK_FRAME_OVERHEAD; \ | |
663276b7 | 288 | EXC_XFER_TEMPLATE(DebugException, 0x2008, (MSR_KERNEL & ~(MSR_ME|MSR_DE|MSR_CE)), NOCOPY, debug_transfer_to_handler, ret_from_debug_exc) |
eb0cd5fd KG |
289 | |
290 | #define DEBUG_CRIT_EXCEPTION \ | |
291 | START_EXCEPTION(DebugCrit); \ | |
63dafe57 BB |
292 | CRITICAL_EXCEPTION_PROLOG; \ |
293 | \ | |
294 | /* \ | |
295 | * If there is a single step or branch-taken exception in an \ | |
296 | * exception entry sequence, it was probably meant to apply to \ | |
297 | * the code where the exception occurred (since exception entry \ | |
298 | * doesn't turn off DE automatically). We simulate the effect \ | |
299 | * of turning off DE on entry to an exception handler by turning \ | |
300 | * off DE in the CSRR1 value and clearing the debug status. \ | |
301 | */ \ | |
302 | mfspr r10,SPRN_DBSR; /* check single-step/branch taken */ \ | |
303 | andis. r10,r10,DBSR_IC@h; \ | |
304 | beq+ 2f; \ | |
305 | \ | |
306 | lis r10,KERNELBASE@h; /* check if exception in vectors */ \ | |
307 | ori r10,r10,KERNELBASE@l; \ | |
308 | cmplw r12,r10; \ | |
309 | blt+ 2f; /* addr below exception vectors */ \ | |
310 | \ | |
eb0cd5fd KG |
311 | lis r10,DebugCrit@h; \ |
312 | ori r10,r10,DebugCrit@l; \ | |
63dafe57 BB |
313 | cmplw r12,r10; \ |
314 | bgt+ 2f; /* addr above exception vectors */ \ | |
315 | \ | |
316 | /* here it looks like we got an inappropriate debug exception. */ \ | |
317 | 1: rlwinm r9,r9,0,~MSR_DE; /* clear DE in the CSRR1 value */ \ | |
318 | lis r10,DBSR_IC@h; /* clear the IC event */ \ | |
319 | mtspr SPRN_DBSR,r10; \ | |
320 | /* restore state and get out */ \ | |
321 | lwz r10,_CCR(r11); \ | |
322 | lwz r0,GPR0(r11); \ | |
323 | lwz r1,GPR1(r11); \ | |
324 | mtcrf 0x80,r10; \ | |
325 | mtspr SPRN_CSRR0,r12; \ | |
326 | mtspr SPRN_CSRR1,r9; \ | |
327 | lwz r9,GPR9(r11); \ | |
328 | lwz r12,GPR12(r11); \ | |
329 | mtspr CRIT_SPRG,r8; \ | |
330 | BOOKE_LOAD_EXC_LEVEL_STACK(CRIT); /* r8 points to the debug stack */ \ | |
369e757b KG |
331 | lwz r10,GPR10(r8); \ |
332 | lwz r11,GPR11(r8); \ | |
63dafe57 BB |
333 | mfspr r8,CRIT_SPRG; \ |
334 | \ | |
335 | rfci; \ | |
336 | b .; \ | |
337 | \ | |
338 | /* continue normal handling for a critical exception... */ \ | |
339 | 2: mfspr r4,SPRN_DBSR; \ | |
340 | addi r3,r1,STACK_FRAME_OVERHEAD; \ | |
341 | EXC_XFER_TEMPLATE(DebugException, 0x2002, (MSR_KERNEL & ~(MSR_ME|MSR_DE|MSR_CE)), NOCOPY, crit_transfer_to_handler, ret_from_crit_exc) | |
63dafe57 | 342 | |
1bc54c03 BH |
343 | #define DATA_STORAGE_EXCEPTION \ |
344 | START_EXCEPTION(DataStorage) \ | |
345 | NORMAL_EXCEPTION_PROLOG; \ | |
346 | mfspr r5,SPRN_ESR; /* Grab the ESR and save it */ \ | |
347 | stw r5,_ESR(r11); \ | |
348 | mfspr r4,SPRN_DEAR; /* Grab the DEAR */ \ | |
349 | EXC_XFER_EE_LITE(0x0300, handle_page_fault) | |
350 | ||
63dafe57 BB |
351 | #define INSTRUCTION_STORAGE_EXCEPTION \ |
352 | START_EXCEPTION(InstructionStorage) \ | |
353 | NORMAL_EXCEPTION_PROLOG; \ | |
354 | mfspr r5,SPRN_ESR; /* Grab the ESR and save it */ \ | |
355 | stw r5,_ESR(r11); \ | |
356 | mr r4,r12; /* Pass SRR0 as arg2 */ \ | |
357 | li r5,0; /* Pass zero as arg3 */ \ | |
358 | EXC_XFER_EE_LITE(0x0400, handle_page_fault) | |
359 | ||
360 | #define ALIGNMENT_EXCEPTION \ | |
361 | START_EXCEPTION(Alignment) \ | |
362 | NORMAL_EXCEPTION_PROLOG; \ | |
363 | mfspr r4,SPRN_DEAR; /* Grab the DEAR and save it */ \ | |
364 | stw r4,_DEAR(r11); \ | |
365 | addi r3,r1,STACK_FRAME_OVERHEAD; \ | |
366 | EXC_XFER_EE(0x0600, alignment_exception) | |
367 | ||
368 | #define PROGRAM_EXCEPTION \ | |
369 | START_EXCEPTION(Program) \ | |
370 | NORMAL_EXCEPTION_PROLOG; \ | |
371 | mfspr r4,SPRN_ESR; /* Grab the ESR and save it */ \ | |
372 | stw r4,_ESR(r11); \ | |
373 | addi r3,r1,STACK_FRAME_OVERHEAD; \ | |
374 | EXC_XFER_STD(0x0700, program_check_exception) | |
375 | ||
376 | #define DECREMENTER_EXCEPTION \ | |
377 | START_EXCEPTION(Decrementer) \ | |
378 | NORMAL_EXCEPTION_PROLOG; \ | |
379 | lis r0,TSR_DIS@h; /* Setup the DEC interrupt mask */ \ | |
380 | mtspr SPRN_TSR,r0; /* Clear the DEC interrupt */ \ | |
381 | addi r3,r1,STACK_FRAME_OVERHEAD; \ | |
382 | EXC_XFER_LITE(0x0900, timer_interrupt) | |
383 | ||
384 | #define FP_UNAVAILABLE_EXCEPTION \ | |
385 | START_EXCEPTION(FloatingPointUnavailable) \ | |
386 | NORMAL_EXCEPTION_PROLOG; \ | |
6f3d8e69 MN |
387 | beq 1f; \ |
388 | bl load_up_fpu; /* if from user, just load it up */ \ | |
389 | b fast_exception_return; \ | |
390 | 1: addi r3,r1,STACK_FRAME_OVERHEAD; \ | |
66f2d025 | 391 | EXC_XFER_EE_LITE(0x800, kernel_fp_unavailable_exception) |
63dafe57 | 392 | |
fca622c5 KG |
393 | #ifndef __ASSEMBLY__ |
394 | struct exception_regs { | |
395 | unsigned long mas0; | |
396 | unsigned long mas1; | |
397 | unsigned long mas2; | |
398 | unsigned long mas3; | |
399 | unsigned long mas6; | |
400 | unsigned long mas7; | |
401 | unsigned long srr0; | |
402 | unsigned long srr1; | |
403 | unsigned long csrr0; | |
404 | unsigned long csrr1; | |
405 | unsigned long dsrr0; | |
406 | unsigned long dsrr1; | |
407 | unsigned long saved_ksp_limit; | |
408 | }; | |
409 | ||
410 | /* ensure this structure is always sized to a multiple of the stack alignment */ | |
411 | #define STACK_EXC_LVL_FRAME_SIZE _ALIGN_UP(sizeof (struct exception_regs), 16) | |
412 | ||
413 | #endif /* __ASSEMBLY__ */ | |
63dafe57 | 414 | #endif /* __HEAD_BOOKE_H__ */ |