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authorDavid S. Miller <davem@davemloft.net>2005-08-19 18:55:33 -0400
committerDavid S. Miller <davem@davemloft.net>2005-08-19 18:55:33 -0400
commita3f9985843b674cbcb58f39fab8416675e7ab842 (patch)
treeaa869cd04ff618d018c5f39b7a3b0070d5e3957d
parent8d5290149ee1c6a4cea5f5146d64e2a0d48f4988 (diff)
[SPARC64]: Move kernel unaligned trap handlers into assembler file.
GCC 4.x really dislikes the games we are playing in unaligned.c, and the cleanest way to fix this is to move things into assembler. Noted by Al Viro. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat
-rw-r--r--arch/sparc64/kernel/Makefile2
-rw-r--r--arch/sparc64/kernel/traps.c3
-rw-r--r--arch/sparc64/kernel/una_asm.S153
-rw-r--r--arch/sparc64/kernel/unaligned.c261
-rw-r--r--include/asm-sparc64/thread_info.h5
5 files changed, 221 insertions, 203 deletions
diff --git a/arch/sparc64/kernel/Makefile b/arch/sparc64/kernel/Makefile
index 093281bdf85f..6f00ab8b9d23 100644
--- a/arch/sparc64/kernel/Makefile
+++ b/arch/sparc64/kernel/Makefile
@@ -8,7 +8,7 @@ EXTRA_CFLAGS := -Werror
8extra-y := head.o init_task.o vmlinux.lds 8extra-y := head.o init_task.o vmlinux.lds
9 9
10obj-y := process.o setup.o cpu.o idprom.o \ 10obj-y := process.o setup.o cpu.o idprom.o \
11 traps.o devices.o auxio.o \ 11 traps.o devices.o auxio.o una_asm.o \
12 irq.o ptrace.o time.o sys_sparc.o signal.o \ 12 irq.o ptrace.o time.o sys_sparc.o signal.o \
13 unaligned.o central.o pci.o starfire.o semaphore.o \ 13 unaligned.o central.o pci.o starfire.o semaphore.o \
14 power.o sbus.o iommu_common.o sparc64_ksyms.o chmc.o 14 power.o sbus.o iommu_common.o sparc64_ksyms.o chmc.o
diff --git a/arch/sparc64/kernel/traps.c b/arch/sparc64/kernel/traps.c
index 100b0107c4be..0c9e54b2f0c8 100644
--- a/arch/sparc64/kernel/traps.c
+++ b/arch/sparc64/kernel/traps.c
@@ -2127,6 +2127,9 @@ void __init trap_init(void)
2127 TI_PRE_COUNT != offsetof(struct thread_info, preempt_count) || 2127 TI_PRE_COUNT != offsetof(struct thread_info, preempt_count) ||
2128 TI_NEW_CHILD != offsetof(struct thread_info, new_child) || 2128 TI_NEW_CHILD != offsetof(struct thread_info, new_child) ||
2129 TI_SYS_NOERROR != offsetof(struct thread_info, syscall_noerror) || 2129 TI_SYS_NOERROR != offsetof(struct thread_info, syscall_noerror) ||
2130 TI_RESTART_BLOCK != offsetof(struct thread_info, restart_block) ||
2131 TI_KUNA_REGS != offsetof(struct thread_info, kern_una_regs) ||
2132 TI_KUNA_INSN != offsetof(struct thread_info, kern_una_insn) ||
2130 TI_FPREGS != offsetof(struct thread_info, fpregs) || 2133 TI_FPREGS != offsetof(struct thread_info, fpregs) ||
2131 (TI_FPREGS & (64 - 1))) 2134 (TI_FPREGS & (64 - 1)))
2132 thread_info_offsets_are_bolixed_dave(); 2135 thread_info_offsets_are_bolixed_dave();
diff --git a/arch/sparc64/kernel/una_asm.S b/arch/sparc64/kernel/una_asm.S
new file mode 100644
index 000000000000..cbb40585253c
--- /dev/null
+++ b/arch/sparc64/kernel/una_asm.S
@@ -0,0 +1,153 @@
1/* una_asm.S: Kernel unaligned trap assembler helpers.
2 *
3 * Copyright (C) 1996,2005 David S. Miller (davem@davemloft.net)
4 * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
5 */
6
7 .text
8
9kernel_unaligned_trap_fault:
10 call kernel_mna_trap_fault
11 nop
12 retl
13 nop
14 .size kern_unaligned_trap_fault, .-kern_unaligned_trap_fault
15
16 .globl __do_int_store
17__do_int_store:
18 rd %asi, %o4
19 wr %o3, 0, %asi
20 ldx [%o2], %g3
21 cmp %o1, 2
22 be,pn %icc, 2f
23 cmp %o1, 4
24 be,pt %icc, 1f
25 srlx %g3, 24, %g2
26 srlx %g3, 56, %g1
27 srlx %g3, 48, %g7
284: stba %g1, [%o0] %asi
29 srlx %g3, 40, %g1
305: stba %g7, [%o0 + 1] %asi
31 srlx %g3, 32, %g7
326: stba %g1, [%o0 + 2] %asi
337: stba %g7, [%o0 + 3] %asi
34 srlx %g3, 16, %g1
358: stba %g2, [%o0 + 4] %asi
36 srlx %g3, 8, %g7
379: stba %g1, [%o0 + 5] %asi
3810: stba %g7, [%o0 + 6] %asi
39 ba,pt %xcc, 0f
4011: stba %g3, [%o0 + 7] %asi
411: srl %g3, 16, %g7
4212: stba %g2, [%o0] %asi
43 srl %g3, 8, %g2
4413: stba %g7, [%o0 + 1] %asi
4514: stba %g2, [%o0 + 2] %asi
46 ba,pt %xcc, 0f
4715: stba %g3, [%o0 + 3] %asi
482: srl %g3, 8, %g2
4916: stba %g2, [%o0] %asi
5017: stba %g3, [%o0 + 1] %asi
510:
52 wr %o4, 0x0, %asi
53 retl
54 nop
55 .size __do_int_store, .-__do_int_store
56
57 .section __ex_table
58 .word 4b, kernel_unaligned_trap_fault
59 .word 5b, kernel_unaligned_trap_fault
60 .word 6b, kernel_unaligned_trap_fault
61 .word 7b, kernel_unaligned_trap_fault
62 .word 8b, kernel_unaligned_trap_fault
63 .word 9b, kernel_unaligned_trap_fault
64 .word 10b, kernel_unaligned_trap_fault
65 .word 11b, kernel_unaligned_trap_fault
66 .word 12b, kernel_unaligned_trap_fault
67 .word 13b, kernel_unaligned_trap_fault
68 .word 14b, kernel_unaligned_trap_fault
69 .word 15b, kernel_unaligned_trap_fault
70 .word 16b, kernel_unaligned_trap_fault
71 .word 17b, kernel_unaligned_trap_fault
72 .previous
73
74 .globl do_int_load
75do_int_load:
76 rd %asi, %o5
77 wr %o4, 0, %asi
78 cmp %o1, 8
79 bge,pn %icc, 9f
80 cmp %o1, 4
81 be,pt %icc, 6f
824: lduba [%o2] %asi, %g2
835: lduba [%o2 + 1] %asi, %g3
84 sll %g2, 8, %g2
85 brz,pt %o3, 3f
86 add %g2, %g3, %g2
87 sllx %g2, 48, %g2
88 srax %g2, 48, %g2
893: ba,pt %xcc, 0f
90 stx %g2, [%o0]
916: lduba [%o2 + 1] %asi, %g3
92 sll %g2, 24, %g2
937: lduba [%o2 + 2] %asi, %g7
94 sll %g3, 16, %g3
958: lduba [%o2 + 3] %asi, %g1
96 sll %g7, 8, %g7
97 or %g2, %g3, %g2
98 or %g7, %g1, %g7
99 or %g2, %g7, %g2
100 brnz,a,pt %o3, 3f
101 sra %g2, 0, %g2
1023: ba,pt %xcc, 0f
103 stx %g2, [%o0]
1049: lduba [%o2] %asi, %g2
10510: lduba [%o2 + 1] %asi, %g3
106 sllx %g2, 56, %g2
10711: lduba [%o2 + 2] %asi, %g7
108 sllx %g3, 48, %g3
10912: lduba [%o2 + 3] %asi, %g1
110 sllx %g7, 40, %g7
111 sllx %g1, 32, %g1
112 or %g2, %g3, %g2
113 or %g7, %g1, %g7
11413: lduba [%o2 + 4] %asi, %g3
115 or %g2, %g7, %g7
11614: lduba [%o2 + 5] %asi, %g1
117 sllx %g3, 24, %g3
11815: lduba [%o2 + 6] %asi, %g2
119 sllx %g1, 16, %g1
120 or %g7, %g3, %g7
12116: lduba [%o2 + 7] %asi, %g3
122 sllx %g2, 8, %g2
123 or %g7, %g1, %g7
124 or %g2, %g3, %g2
125 or %g7, %g2, %g7
126 cmp %o1, 8
127 be,a,pt %icc, 0f
128 stx %g7, [%o0]
129 srlx %g7, 32, %g2
130 sra %g7, 0, %g7
131 stx %g2, [%o0]
132 stx %g7, [%o0 + 8]
1330:
134 wr %o5, 0x0, %asi
135 retl
136 nop
137 .size __do_int_load, .-__do_int_load
138
139 .section __ex_table
140 .word 4b, kernel_unaligned_trap_fault
141 .word 5b, kernel_unaligned_trap_fault
142 .word 6b, kernel_unaligned_trap_fault
143 .word 7b, kernel_unaligned_trap_fault
144 .word 8b, kernel_unaligned_trap_fault
145 .word 9b, kernel_unaligned_trap_fault
146 .word 10b, kernel_unaligned_trap_fault
147 .word 11b, kernel_unaligned_trap_fault
148 .word 12b, kernel_unaligned_trap_fault
149 .word 13b, kernel_unaligned_trap_fault
150 .word 14b, kernel_unaligned_trap_fault
151 .word 15b, kernel_unaligned_trap_fault
152 .word 16b, kernel_unaligned_trap_fault
153 .previous
diff --git a/arch/sparc64/kernel/unaligned.c b/arch/sparc64/kernel/unaligned.c
index 4372bf32ecf6..11c3e88732e4 100644
--- a/arch/sparc64/kernel/unaligned.c
+++ b/arch/sparc64/kernel/unaligned.c
@@ -180,169 +180,28 @@ static void __attribute_used__ unaligned_panic(char *str, struct pt_regs *regs)
180 die_if_kernel(str, regs); 180 die_if_kernel(str, regs);
181} 181}
182 182
183#define do_integer_load(dest_reg, size, saddr, is_signed, asi, errh) ({ \ 183extern void do_int_load(unsigned long *dest_reg, int size,
184__asm__ __volatile__ ( \ 184 unsigned long *saddr, int is_signed, int asi);
185 "wr %4, 0, %%asi\n\t" \
186 "cmp %1, 8\n\t" \
187 "bge,pn %%icc, 9f\n\t" \
188 " cmp %1, 4\n\t" \
189 "be,pt %%icc, 6f\n" \
190"4:\t" " lduba [%2] %%asi, %%l1\n" \
191"5:\t" "lduba [%2 + 1] %%asi, %%l2\n\t" \
192 "sll %%l1, 8, %%l1\n\t" \
193 "brz,pt %3, 3f\n\t" \
194 " add %%l1, %%l2, %%l1\n\t" \
195 "sllx %%l1, 48, %%l1\n\t" \
196 "srax %%l1, 48, %%l1\n" \
197"3:\t" "ba,pt %%xcc, 0f\n\t" \
198 " stx %%l1, [%0]\n" \
199"6:\t" "lduba [%2 + 1] %%asi, %%l2\n\t" \
200 "sll %%l1, 24, %%l1\n" \
201"7:\t" "lduba [%2 + 2] %%asi, %%g7\n\t" \
202 "sll %%l2, 16, %%l2\n" \
203"8:\t" "lduba [%2 + 3] %%asi, %%g1\n\t" \
204 "sll %%g7, 8, %%g7\n\t" \
205 "or %%l1, %%l2, %%l1\n\t" \
206 "or %%g7, %%g1, %%g7\n\t" \
207 "or %%l1, %%g7, %%l1\n\t" \
208 "brnz,a,pt %3, 3f\n\t" \
209 " sra %%l1, 0, %%l1\n" \
210"3:\t" "ba,pt %%xcc, 0f\n\t" \
211 " stx %%l1, [%0]\n" \
212"9:\t" "lduba [%2] %%asi, %%l1\n" \
213"10:\t" "lduba [%2 + 1] %%asi, %%l2\n\t" \
214 "sllx %%l1, 56, %%l1\n" \
215"11:\t" "lduba [%2 + 2] %%asi, %%g7\n\t" \
216 "sllx %%l2, 48, %%l2\n" \
217"12:\t" "lduba [%2 + 3] %%asi, %%g1\n\t" \
218 "sllx %%g7, 40, %%g7\n\t" \
219 "sllx %%g1, 32, %%g1\n\t" \
220 "or %%l1, %%l2, %%l1\n\t" \
221 "or %%g7, %%g1, %%g7\n" \
222"13:\t" "lduba [%2 + 4] %%asi, %%l2\n\t" \
223 "or %%l1, %%g7, %%g7\n" \
224"14:\t" "lduba [%2 + 5] %%asi, %%g1\n\t" \
225 "sllx %%l2, 24, %%l2\n" \
226"15:\t" "lduba [%2 + 6] %%asi, %%l1\n\t" \
227 "sllx %%g1, 16, %%g1\n\t" \
228 "or %%g7, %%l2, %%g7\n" \
229"16:\t" "lduba [%2 + 7] %%asi, %%l2\n\t" \
230 "sllx %%l1, 8, %%l1\n\t" \
231 "or %%g7, %%g1, %%g7\n\t" \
232 "or %%l1, %%l2, %%l1\n\t" \
233 "or %%g7, %%l1, %%g7\n\t" \
234 "cmp %1, 8\n\t" \
235 "be,a,pt %%icc, 0f\n\t" \
236 " stx %%g7, [%0]\n\t" \
237 "srlx %%g7, 32, %%l1\n\t" \
238 "sra %%g7, 0, %%g7\n\t" \
239 "stx %%l1, [%0]\n\t" \
240 "stx %%g7, [%0 + 8]\n" \
241"0:\n\t" \
242 "wr %%g0, %5, %%asi\n\n\t" \
243 ".section __ex_table\n\t" \
244 ".word 4b, " #errh "\n\t" \
245 ".word 5b, " #errh "\n\t" \
246 ".word 6b, " #errh "\n\t" \
247 ".word 7b, " #errh "\n\t" \
248 ".word 8b, " #errh "\n\t" \
249 ".word 9b, " #errh "\n\t" \
250 ".word 10b, " #errh "\n\t" \
251 ".word 11b, " #errh "\n\t" \
252 ".word 12b, " #errh "\n\t" \
253 ".word 13b, " #errh "\n\t" \
254 ".word 14b, " #errh "\n\t" \
255 ".word 15b, " #errh "\n\t" \
256 ".word 16b, " #errh "\n\n\t" \
257 ".previous\n\t" \
258 : : "r" (dest_reg), "r" (size), "r" (saddr), "r" (is_signed), \
259 "r" (asi), "i" (ASI_AIUS) \
260 : "l1", "l2", "g7", "g1", "cc"); \
261})
262 185
263#define store_common(dst_addr, size, src_val, asi, errh) ({ \ 186extern void __do_int_store(unsigned long *dst_addr, int size,
264__asm__ __volatile__ ( \ 187 unsigned long *src_val, int asi);
265 "wr %3, 0, %%asi\n\t" \ 188
266 "ldx [%2], %%l1\n" \ 189static inline void do_int_store(int reg_num, int size, unsigned long *dst_addr,
267 "cmp %1, 2\n\t" \ 190 struct pt_regs *regs, int asi)
268 "be,pn %%icc, 2f\n\t" \ 191{
269 " cmp %1, 4\n\t" \ 192 unsigned long zero = 0;
270 "be,pt %%icc, 1f\n\t" \ 193 unsigned long *src_val = &zero;
271 " srlx %%l1, 24, %%l2\n\t" \ 194
272 "srlx %%l1, 56, %%g1\n\t" \ 195 if (size == 16) {
273 "srlx %%l1, 48, %%g7\n" \ 196 size = 8;
274"4:\t" "stba %%g1, [%0] %%asi\n\t" \ 197 zero = (((long)(reg_num ?
275 "srlx %%l1, 40, %%g1\n" \ 198 (unsigned)fetch_reg(reg_num, regs) : 0)) << 32) |
276"5:\t" "stba %%g7, [%0 + 1] %%asi\n\t" \ 199 (unsigned)fetch_reg(reg_num + 1, regs);
277 "srlx %%l1, 32, %%g7\n" \ 200 } else if (reg_num) {
278"6:\t" "stba %%g1, [%0 + 2] %%asi\n" \ 201 src_val = fetch_reg_addr(reg_num, regs);
279"7:\t" "stba %%g7, [%0 + 3] %%asi\n\t" \ 202 }
280 "srlx %%l1, 16, %%g1\n" \ 203 __do_int_store(dst_addr, size, src_val, asi);
281"8:\t" "stba %%l2, [%0 + 4] %%asi\n\t" \ 204}
282 "srlx %%l1, 8, %%g7\n" \
283"9:\t" "stba %%g1, [%0 + 5] %%asi\n" \
284"10:\t" "stba %%g7, [%0 + 6] %%asi\n\t" \
285 "ba,pt %%xcc, 0f\n" \
286"11:\t" " stba %%l1, [%0 + 7] %%asi\n" \
287"1:\t" "srl %%l1, 16, %%g7\n" \
288"12:\t" "stba %%l2, [%0] %%asi\n\t" \
289 "srl %%l1, 8, %%l2\n" \
290"13:\t" "stba %%g7, [%0 + 1] %%asi\n" \
291"14:\t" "stba %%l2, [%0 + 2] %%asi\n\t" \
292 "ba,pt %%xcc, 0f\n" \
293"15:\t" " stba %%l1, [%0 + 3] %%asi\n" \
294"2:\t" "srl %%l1, 8, %%l2\n" \
295"16:\t" "stba %%l2, [%0] %%asi\n" \
296"17:\t" "stba %%l1, [%0 + 1] %%asi\n" \
297"0:\n\t" \
298 "wr %%g0, %4, %%asi\n\n\t" \
299 ".section __ex_table\n\t" \
300 ".word 4b, " #errh "\n\t" \
301 ".word 5b, " #errh "\n\t" \
302 ".word 6b, " #errh "\n\t" \
303 ".word 7b, " #errh "\n\t" \
304 ".word 8b, " #errh "\n\t" \
305 ".word 9b, " #errh "\n\t" \
306 ".word 10b, " #errh "\n\t" \
307 ".word 11b, " #errh "\n\t" \
308 ".word 12b, " #errh "\n\t" \
309 ".word 13b, " #errh "\n\t" \
310 ".word 14b, " #errh "\n\t" \
311 ".word 15b, " #errh "\n\t" \
312 ".word 16b, " #errh "\n\t" \
313 ".word 17b, " #errh "\n\n\t" \
314 ".previous\n\t" \
315 : : "r" (dst_addr), "r" (size), "r" (src_val), "r" (asi), "i" (ASI_AIUS)\
316 : "l1", "l2", "g7", "g1", "cc"); \
317})
318
319#define do_integer_store(reg_num, size, dst_addr, regs, asi, errh) ({ \
320 unsigned long zero = 0; \
321 unsigned long *src_val = &zero; \
322 \
323 if (size == 16) { \
324 size = 8; \
325 zero = (((long)(reg_num ? \
326 (unsigned)fetch_reg(reg_num, regs) : 0)) << 32) | \
327 (unsigned)fetch_reg(reg_num + 1, regs); \
328 } else if (reg_num) src_val = fetch_reg_addr(reg_num, regs); \
329 store_common(dst_addr, size, src_val, asi, errh); \
330})
331
332extern void smp_capture(void);
333extern void smp_release(void);
334
335#define do_atomic(srcdest_reg, mem, errh) ({ \
336 unsigned long flags, tmp; \
337 \
338 smp_capture(); \
339 local_irq_save(flags); \
340 tmp = *srcdest_reg; \
341 do_integer_load(srcdest_reg, 4, mem, 0, errh); \
342 store_common(mem, 4, &tmp, errh); \
343 local_irq_restore(flags); \
344 smp_release(); \
345})
346 205
347static inline void advance(struct pt_regs *regs) 206static inline void advance(struct pt_regs *regs)
348{ 207{
@@ -364,24 +223,29 @@ static inline int ok_for_kernel(unsigned int insn)
364 return !floating_point_load_or_store_p(insn); 223 return !floating_point_load_or_store_p(insn);
365} 224}
366 225
367void kernel_mna_trap_fault(struct pt_regs *regs, unsigned int insn) __asm__ ("kernel_mna_trap_fault"); 226void kernel_mna_trap_fault(void)
368
369void kernel_mna_trap_fault(struct pt_regs *regs, unsigned int insn)
370{ 227{
371 unsigned long g2 = regs->u_regs [UREG_G2]; 228 struct pt_regs *regs = current_thread_info()->kern_una_regs;
229 unsigned int insn = current_thread_info()->kern_una_insn;
230 unsigned long g2 = regs->u_regs[UREG_G2];
372 unsigned long fixup = search_extables_range(regs->tpc, &g2); 231 unsigned long fixup = search_extables_range(regs->tpc, &g2);
373 232
374 if (!fixup) { 233 if (!fixup) {
375 unsigned long address = compute_effective_address(regs, insn, ((insn >> 25) & 0x1f)); 234 unsigned long address;
235
236 address = compute_effective_address(regs, insn,
237 ((insn >> 25) & 0x1f));
376 if (address < PAGE_SIZE) { 238 if (address < PAGE_SIZE) {
377 printk(KERN_ALERT "Unable to handle kernel NULL pointer dereference in mna handler"); 239 printk(KERN_ALERT "Unable to handle kernel NULL "
240 "pointer dereference in mna handler");
378 } else 241 } else
379 printk(KERN_ALERT "Unable to handle kernel paging request in mna handler"); 242 printk(KERN_ALERT "Unable to handle kernel paging "
243 "request in mna handler");
380 printk(KERN_ALERT " at virtual address %016lx\n",address); 244 printk(KERN_ALERT " at virtual address %016lx\n",address);
381 printk(KERN_ALERT "current->{mm,active_mm}->context = %016lx\n", 245 printk(KERN_ALERT "current->{active_,}mm->context = %016lx\n",
382 (current->mm ? CTX_HWBITS(current->mm->context) : 246 (current->mm ? CTX_HWBITS(current->mm->context) :
383 CTX_HWBITS(current->active_mm->context))); 247 CTX_HWBITS(current->active_mm->context)));
384 printk(KERN_ALERT "current->{mm,active_mm}->pgd = %016lx\n", 248 printk(KERN_ALERT "current->{active_,}mm->pgd = %016lx\n",
385 (current->mm ? (unsigned long) current->mm->pgd : 249 (current->mm ? (unsigned long) current->mm->pgd :
386 (unsigned long) current->active_mm->pgd)); 250 (unsigned long) current->active_mm->pgd));
387 die_if_kernel("Oops", regs); 251 die_if_kernel("Oops", regs);
@@ -400,48 +264,41 @@ asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn, u
400 enum direction dir = decode_direction(insn); 264 enum direction dir = decode_direction(insn);
401 int size = decode_access_size(insn); 265 int size = decode_access_size(insn);
402 266
267 current_thread_info()->kern_una_regs = regs;
268 current_thread_info()->kern_una_insn = insn;
269
403 if (!ok_for_kernel(insn) || dir == both) { 270 if (!ok_for_kernel(insn) || dir == both) {
404 printk("Unsupported unaligned load/store trap for kernel at <%016lx>.\n", 271 printk("Unsupported unaligned load/store trap for kernel "
405 regs->tpc); 272 "at <%016lx>.\n", regs->tpc);
406 unaligned_panic("Kernel does fpu/atomic unaligned load/store.", regs); 273 unaligned_panic("Kernel does fpu/atomic "
407 274 "unaligned load/store.", regs);
408 __asm__ __volatile__ ("\n" 275
409"kernel_unaligned_trap_fault:\n\t" 276 kernel_mna_trap_fault();
410 "mov %0, %%o0\n\t"
411 "call kernel_mna_trap_fault\n\t"
412 " mov %1, %%o1\n\t"
413 :
414 : "r" (regs), "r" (insn)
415 : "o0", "o1", "o2", "o3", "o4", "o5", "o7",
416 "g1", "g2", "g3", "g4", "g7", "cc");
417 } else { 277 } else {
418 unsigned long addr = compute_effective_address(regs, insn, ((insn >> 25) & 0x1f)); 278 unsigned long addr;
419 279
280 addr = compute_effective_address(regs, insn,
281 ((insn >> 25) & 0x1f));
420#ifdef DEBUG_MNA 282#ifdef DEBUG_MNA
421 printk("KMNA: pc=%016lx [dir=%s addr=%016lx size=%d] retpc[%016lx]\n", 283 printk("KMNA: pc=%016lx [dir=%s addr=%016lx size=%d] "
422 regs->tpc, dirstrings[dir], addr, size, regs->u_regs[UREG_RETPC]); 284 "retpc[%016lx]\n",
285 regs->tpc, dirstrings[dir], addr, size,
286 regs->u_regs[UREG_RETPC]);
423#endif 287#endif
424 switch (dir) { 288 switch (dir) {
425 case load: 289 case load:
426 do_integer_load(fetch_reg_addr(((insn>>25)&0x1f), regs), 290 do_int_load(fetch_reg_addr(((insn>>25)&0x1f), regs),
427 size, (unsigned long *) addr, 291 size, (unsigned long *) addr,
428 decode_signedness(insn), decode_asi(insn, regs), 292 decode_signedness(insn),
429 kernel_unaligned_trap_fault); 293 decode_asi(insn, regs));
430 break; 294 break;
431 295
432 case store: 296 case store:
433 do_integer_store(((insn>>25)&0x1f), size, 297 do_int_store(((insn>>25)&0x1f), size,
434 (unsigned long *) addr, regs, 298 (unsigned long *) addr, regs,
435 decode_asi(insn, regs), 299 decode_asi(insn, regs));
436 kernel_unaligned_trap_fault);
437 break;
438#if 0 /* unsupported */
439 case both:
440 do_atomic(fetch_reg_addr(((insn>>25)&0x1f), regs),
441 (unsigned long *) addr,
442 kernel_unaligned_trap_fault);
443 break; 300 break;
444#endif 301
445 default: 302 default:
446 panic("Impossible kernel unaligned trap."); 303 panic("Impossible kernel unaligned trap.");
447 /* Not reached... */ 304 /* Not reached... */
diff --git a/include/asm-sparc64/thread_info.h b/include/asm-sparc64/thread_info.h
index 352d9943661a..c94d8b3991bd 100644
--- a/include/asm-sparc64/thread_info.h
+++ b/include/asm-sparc64/thread_info.h
@@ -68,6 +68,9 @@ struct thread_info {
68 68
69 struct restart_block restart_block; 69 struct restart_block restart_block;
70 70
71 struct pt_regs *kern_una_regs;
72 unsigned int kern_una_insn;
73
71 unsigned long fpregs[0] __attribute__ ((aligned(64))); 74 unsigned long fpregs[0] __attribute__ ((aligned(64)));
72}; 75};
73 76
@@ -103,6 +106,8 @@ struct thread_info {
103#define TI_PCR 0x00000490 106#define TI_PCR 0x00000490
104#define TI_CEE_STUFF 0x00000498 107#define TI_CEE_STUFF 0x00000498
105#define TI_RESTART_BLOCK 0x000004a0 108#define TI_RESTART_BLOCK 0x000004a0
109#define TI_KUNA_REGS 0x000004c8
110#define TI_KUNA_INSN 0x000004d0
106#define TI_FPREGS 0x00000500 111#define TI_FPREGS 0x00000500
107 112
108/* We embed this in the uppermost byte of thread_info->flags */ 113/* We embed this in the uppermost byte of thread_info->flags */
generated by cgit v1.2.2 (git 2.25.0) at 2024-10-31 22:33:36 -0400