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authorStephen Rothwell <sfr@canb.auug.org.au>2007-08-21 23:47:24 -0400
committerPaul Mackerras <paulus@samba.org>2007-08-22 02:48:35 -0400
commitdc8f571a26689102f6abe2565a84226edeaacc61 (patch)
tree2a155e79e63f2ff2c1321e3bc704eb472e516cc1 /arch
parentf9ff0f304833be9a6a605c84e24d630d5aef2230 (diff)
[POWERPC] Move the iSeries exception vectors
out of head_64.S and into platforms/iseries/exception.S Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/kernel/head_64.S136
-rw-r--r--arch/powerpc/platforms/iseries/exception.S136
2 files changed, 136 insertions, 136 deletions
diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S
index fe6122bfd073..33c4e8cab0ba 100644
--- a/arch/powerpc/kernel/head_64.S
+++ b/arch/powerpc/kernel/head_64.S
@@ -358,142 +358,6 @@ machine_check_fwnmi:
358 mtspr SPRN_SPRG1,r13 /* save r13 */ 358 mtspr SPRN_SPRG1,r13 /* save r13 */
359 EXCEPTION_PROLOG_PSERIES_FORCE_64BIT(PACA_EXMC, machine_check_common) 359 EXCEPTION_PROLOG_PSERIES_FORCE_64BIT(PACA_EXMC, machine_check_common)
360 360
361#ifdef CONFIG_PPC_ISERIES
362/*** ISeries-LPAR interrupt handlers ***/
363
364 STD_EXCEPTION_ISERIES(0x200, machine_check, PACA_EXMC)
365
366 .globl data_access_iSeries
367data_access_iSeries:
368 mtspr SPRN_SPRG1,r13
369BEGIN_FTR_SECTION
370 mtspr SPRN_SPRG2,r12
371 mfspr r13,SPRN_DAR
372 mfspr r12,SPRN_DSISR
373 srdi r13,r13,60
374 rlwimi r13,r12,16,0x20
375 mfcr r12
376 cmpwi r13,0x2c
377 beq .do_stab_bolted_iSeries
378 mtcrf 0x80,r12
379 mfspr r12,SPRN_SPRG2
380END_FTR_SECTION_IFCLR(CPU_FTR_SLB)
381 EXCEPTION_PROLOG_ISERIES_1(PACA_EXGEN)
382 EXCEPTION_PROLOG_ISERIES_2
383 b data_access_common
384
385.do_stab_bolted_iSeries:
386 mtcrf 0x80,r12
387 mfspr r12,SPRN_SPRG2
388 EXCEPTION_PROLOG_ISERIES_1(PACA_EXSLB)
389 EXCEPTION_PROLOG_ISERIES_2
390 b .do_stab_bolted
391
392 .globl data_access_slb_iSeries
393data_access_slb_iSeries:
394 mtspr SPRN_SPRG1,r13 /* save r13 */
395 mfspr r13,SPRN_SPRG3 /* get paca address into r13 */
396 std r3,PACA_EXSLB+EX_R3(r13)
397 mfspr r3,SPRN_DAR
398 std r9,PACA_EXSLB+EX_R9(r13)
399 mfcr r9
400#ifdef __DISABLED__
401 cmpdi r3,0
402 bge slb_miss_user_iseries
403#endif
404 std r10,PACA_EXSLB+EX_R10(r13)
405 std r11,PACA_EXSLB+EX_R11(r13)
406 std r12,PACA_EXSLB+EX_R12(r13)
407 mfspr r10,SPRN_SPRG1
408 std r10,PACA_EXSLB+EX_R13(r13)
409 ld r12,PACALPPACAPTR(r13)
410 ld r12,LPPACASRR1(r12)
411 b .slb_miss_realmode
412
413 STD_EXCEPTION_ISERIES(0x400, instruction_access, PACA_EXGEN)
414
415 .globl instruction_access_slb_iSeries
416instruction_access_slb_iSeries:
417 mtspr SPRN_SPRG1,r13 /* save r13 */
418 mfspr r13,SPRN_SPRG3 /* get paca address into r13 */
419 std r3,PACA_EXSLB+EX_R3(r13)
420 ld r3,PACALPPACAPTR(r13)
421 ld r3,LPPACASRR0(r3) /* get SRR0 value */
422 std r9,PACA_EXSLB+EX_R9(r13)
423 mfcr r9
424#ifdef __DISABLED__
425 cmpdi r3,0
426 bge .slb_miss_user_iseries
427#endif
428 std r10,PACA_EXSLB+EX_R10(r13)
429 std r11,PACA_EXSLB+EX_R11(r13)
430 std r12,PACA_EXSLB+EX_R12(r13)
431 mfspr r10,SPRN_SPRG1
432 std r10,PACA_EXSLB+EX_R13(r13)
433 ld r12,PACALPPACAPTR(r13)
434 ld r12,LPPACASRR1(r12)
435 b .slb_miss_realmode
436
437#ifdef __DISABLED__
438slb_miss_user_iseries:
439 std r10,PACA_EXGEN+EX_R10(r13)
440 std r11,PACA_EXGEN+EX_R11(r13)
441 std r12,PACA_EXGEN+EX_R12(r13)
442 mfspr r10,SPRG1
443 ld r11,PACA_EXSLB+EX_R9(r13)
444 ld r12,PACA_EXSLB+EX_R3(r13)
445 std r10,PACA_EXGEN+EX_R13(r13)
446 std r11,PACA_EXGEN+EX_R9(r13)
447 std r12,PACA_EXGEN+EX_R3(r13)
448 EXCEPTION_PROLOG_ISERIES_2
449 b slb_miss_user_common
450#endif
451
452 MASKABLE_EXCEPTION_ISERIES(0x500, hardware_interrupt)
453 STD_EXCEPTION_ISERIES(0x600, alignment, PACA_EXGEN)
454 STD_EXCEPTION_ISERIES(0x700, program_check, PACA_EXGEN)
455 STD_EXCEPTION_ISERIES(0x800, fp_unavailable, PACA_EXGEN)
456 MASKABLE_EXCEPTION_ISERIES(0x900, decrementer)
457 STD_EXCEPTION_ISERIES(0xa00, trap_0a, PACA_EXGEN)
458 STD_EXCEPTION_ISERIES(0xb00, trap_0b, PACA_EXGEN)
459
460 .globl system_call_iSeries
461system_call_iSeries:
462 mr r9,r13
463 mfspr r13,SPRN_SPRG3
464 EXCEPTION_PROLOG_ISERIES_2
465 b system_call_common
466
467 STD_EXCEPTION_ISERIES( 0xd00, single_step, PACA_EXGEN)
468 STD_EXCEPTION_ISERIES( 0xe00, trap_0e, PACA_EXGEN)
469 STD_EXCEPTION_ISERIES( 0xf00, performance_monitor, PACA_EXGEN)
470
471decrementer_iSeries_masked:
472 /* We may not have a valid TOC pointer in here. */
473 li r11,1
474 ld r12,PACALPPACAPTR(r13)
475 stb r11,LPPACADECRINT(r12)
476 LOAD_REG_IMMEDIATE(r12, tb_ticks_per_jiffy)
477 lwz r12,0(r12)
478 mtspr SPRN_DEC,r12
479 /* fall through */
480
481hardware_interrupt_iSeries_masked:
482 mtcrf 0x80,r9 /* Restore regs */
483 ld r12,PACALPPACAPTR(r13)
484 ld r11,LPPACASRR0(r12)
485 ld r12,LPPACASRR1(r12)
486 mtspr SPRN_SRR0,r11
487 mtspr SPRN_SRR1,r12
488 ld r9,PACA_EXGEN+EX_R9(r13)
489 ld r10,PACA_EXGEN+EX_R10(r13)
490 ld r11,PACA_EXGEN+EX_R11(r13)
491 ld r12,PACA_EXGEN+EX_R12(r13)
492 ld r13,PACA_EXGEN+EX_R13(r13)
493 rfid
494 b . /* prevent speculative execution */
495#endif /* CONFIG_PPC_ISERIES */
496
497/*** Common interrupt handlers ***/ 361/*** Common interrupt handlers ***/
498 362
499 STD_EXCEPTION_COMMON(0x100, system_reset, .system_reset_exception) 363 STD_EXCEPTION_COMMON(0x100, system_reset, .system_reset_exception)
diff --git a/arch/powerpc/platforms/iseries/exception.S b/arch/powerpc/platforms/iseries/exception.S
index b6e2f8c0b093..b5f600616ade 100644
--- a/arch/powerpc/platforms/iseries/exception.S
+++ b/arch/powerpc/platforms/iseries/exception.S
@@ -30,6 +30,8 @@
30#include <asm/asm-offsets.h> 30#include <asm/asm-offsets.h>
31#include <asm/thread_info.h> 31#include <asm/thread_info.h>
32#include <asm/ptrace.h> 32#include <asm/ptrace.h>
33#include <asm/exception.h>
34#include <asm/cputable.h>
33 35
34 .text 36 .text
35 37
@@ -83,6 +85,140 @@ iSeries_secondary_smp_loop:
83 b 1b /* If SMP not configured, secondaries 85 b 1b /* If SMP not configured, secondaries
84 * loop forever */ 86 * loop forever */
85 87
88/*** ISeries-LPAR interrupt handlers ***/
89
90 STD_EXCEPTION_ISERIES(0x200, machine_check, PACA_EXMC)
91
92 .globl data_access_iSeries
93data_access_iSeries:
94 mtspr SPRN_SPRG1,r13
95BEGIN_FTR_SECTION
96 mtspr SPRN_SPRG2,r12
97 mfspr r13,SPRN_DAR
98 mfspr r12,SPRN_DSISR
99 srdi r13,r13,60
100 rlwimi r13,r12,16,0x20
101 mfcr r12
102 cmpwi r13,0x2c
103 beq .do_stab_bolted_iSeries
104 mtcrf 0x80,r12
105 mfspr r12,SPRN_SPRG2
106END_FTR_SECTION_IFCLR(CPU_FTR_SLB)
107 EXCEPTION_PROLOG_ISERIES_1(PACA_EXGEN)
108 EXCEPTION_PROLOG_ISERIES_2
109 b data_access_common
110
111.do_stab_bolted_iSeries:
112 mtcrf 0x80,r12
113 mfspr r12,SPRN_SPRG2
114 EXCEPTION_PROLOG_ISERIES_1(PACA_EXSLB)
115 EXCEPTION_PROLOG_ISERIES_2
116 b .do_stab_bolted
117
118 .globl data_access_slb_iSeries
119data_access_slb_iSeries:
120 mtspr SPRN_SPRG1,r13 /* save r13 */
121 mfspr r13,SPRN_SPRG3 /* get paca address into r13 */
122 std r3,PACA_EXSLB+EX_R3(r13)
123 mfspr r3,SPRN_DAR
124 std r9,PACA_EXSLB+EX_R9(r13)
125 mfcr r9
126#ifdef __DISABLED__
127 cmpdi r3,0
128 bge slb_miss_user_iseries
129#endif
130 std r10,PACA_EXSLB+EX_R10(r13)
131 std r11,PACA_EXSLB+EX_R11(r13)
132 std r12,PACA_EXSLB+EX_R12(r13)
133 mfspr r10,SPRN_SPRG1
134 std r10,PACA_EXSLB+EX_R13(r13)
135 ld r12,PACALPPACAPTR(r13)
136 ld r12,LPPACASRR1(r12)
137 b .slb_miss_realmode
138
139 STD_EXCEPTION_ISERIES(0x400, instruction_access, PACA_EXGEN)
140
141 .globl instruction_access_slb_iSeries
142instruction_access_slb_iSeries:
143 mtspr SPRN_SPRG1,r13 /* save r13 */
144 mfspr r13,SPRN_SPRG3 /* get paca address into r13 */
145 std r3,PACA_EXSLB+EX_R3(r13)
146 ld r3,PACALPPACAPTR(r13)
147 ld r3,LPPACASRR0(r3) /* get SRR0 value */
148 std r9,PACA_EXSLB+EX_R9(r13)
149 mfcr r9
150#ifdef __DISABLED__
151 cmpdi r3,0
152 bge slb_miss_user_iseries
153#endif
154 std r10,PACA_EXSLB+EX_R10(r13)
155 std r11,PACA_EXSLB+EX_R11(r13)
156 std r12,PACA_EXSLB+EX_R12(r13)
157 mfspr r10,SPRN_SPRG1
158 std r10,PACA_EXSLB+EX_R13(r13)
159 ld r12,PACALPPACAPTR(r13)
160 ld r12,LPPACASRR1(r12)
161 b .slb_miss_realmode
162
163#ifdef __DISABLED__
164slb_miss_user_iseries:
165 std r10,PACA_EXGEN+EX_R10(r13)
166 std r11,PACA_EXGEN+EX_R11(r13)
167 std r12,PACA_EXGEN+EX_R12(r13)
168 mfspr r10,SPRG1
169 ld r11,PACA_EXSLB+EX_R9(r13)
170 ld r12,PACA_EXSLB+EX_R3(r13)
171 std r10,PACA_EXGEN+EX_R13(r13)
172 std r11,PACA_EXGEN+EX_R9(r13)
173 std r12,PACA_EXGEN+EX_R3(r13)
174 EXCEPTION_PROLOG_ISERIES_2
175 b slb_miss_user_common
176#endif
177
178 MASKABLE_EXCEPTION_ISERIES(0x500, hardware_interrupt)
179 STD_EXCEPTION_ISERIES(0x600, alignment, PACA_EXGEN)
180 STD_EXCEPTION_ISERIES(0x700, program_check, PACA_EXGEN)
181 STD_EXCEPTION_ISERIES(0x800, fp_unavailable, PACA_EXGEN)
182 MASKABLE_EXCEPTION_ISERIES(0x900, decrementer)
183 STD_EXCEPTION_ISERIES(0xa00, trap_0a, PACA_EXGEN)
184 STD_EXCEPTION_ISERIES(0xb00, trap_0b, PACA_EXGEN)
185
186 .globl system_call_iSeries
187system_call_iSeries:
188 mr r9,r13
189 mfspr r13,SPRN_SPRG3
190 EXCEPTION_PROLOG_ISERIES_2
191 b system_call_common
192
193 STD_EXCEPTION_ISERIES( 0xd00, single_step, PACA_EXGEN)
194 STD_EXCEPTION_ISERIES( 0xe00, trap_0e, PACA_EXGEN)
195 STD_EXCEPTION_ISERIES( 0xf00, performance_monitor, PACA_EXGEN)
196
197decrementer_iSeries_masked:
198 /* We may not have a valid TOC pointer in here. */
199 li r11,1
200 ld r12,PACALPPACAPTR(r13)
201 stb r11,LPPACADECRINT(r12)
202 LOAD_REG_IMMEDIATE(r12, tb_ticks_per_jiffy)
203 lwz r12,0(r12)
204 mtspr SPRN_DEC,r12
205 /* fall through */
206
207hardware_interrupt_iSeries_masked:
208 mtcrf 0x80,r9 /* Restore regs */
209 ld r12,PACALPPACAPTR(r13)
210 ld r11,LPPACASRR0(r12)
211 ld r12,LPPACASRR1(r12)
212 mtspr SPRN_SRR0,r11
213 mtspr SPRN_SRR1,r12
214 ld r9,PACA_EXGEN+EX_R9(r13)
215 ld r10,PACA_EXGEN+EX_R10(r13)
216 ld r11,PACA_EXGEN+EX_R11(r13)
217 ld r12,PACA_EXGEN+EX_R12(r13)
218 ld r13,PACA_EXGEN+EX_R13(r13)
219 rfid
220 b . /* prevent speculative execution */
221
86_INIT_STATIC(__start_initialization_iSeries) 222_INIT_STATIC(__start_initialization_iSeries)
87 /* Clear out the BSS */ 223 /* Clear out the BSS */
88 LOAD_REG_IMMEDIATE(r11,__bss_stop) 224 LOAD_REG_IMMEDIATE(r11,__bss_stop)