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authorPaul Mackerras <paulus@samba.org>2005-10-27 23:50:39 -0400
committerPaul Mackerras <paulus@samba.org>2005-10-27 23:50:39 -0400
commit22b280324acbfd1a1f2374055d9bb39e7069e2bf (patch)
tree135f45548120ffc198ba0b2105b83f7f805d123a /arch/ppc64
parent4542437679de448de0f75bc901dab380d6a5bc5b (diff)
parent299f6ce491aa28515d86f29af2779cbfdc7a4790 (diff)
Merge git://oak/home/sfr/kernels/iseries/work/
Diffstat (limited to 'arch/ppc64')
-rw-r--r--arch/ppc64/Makefile2
-rw-r--r--arch/ppc64/kernel/Makefile2
-rw-r--r--arch/ppc64/kernel/entry.S845
-rw-r--r--arch/ppc64/kernel/misc.S563
-rw-r--r--arch/ppc64/lib/Makefile15
-rw-r--r--arch/ppc64/lib/checksum.S229
-rw-r--r--arch/ppc64/lib/copypage.S121
-rw-r--r--arch/ppc64/lib/copyuser.S576
-rw-r--r--arch/ppc64/lib/e2a.c108
-rw-r--r--arch/ppc64/lib/locks.c95
-rw-r--r--arch/ppc64/lib/memcpy.S172
-rw-r--r--arch/ppc64/lib/sstep.c141
-rw-r--r--arch/ppc64/lib/strcase.c31
-rw-r--r--arch/ppc64/lib/string.S106
-rw-r--r--arch/ppc64/lib/usercopy.c41
15 files changed, 4 insertions, 3043 deletions
diff --git a/arch/ppc64/Makefile b/arch/ppc64/Makefile
index ba59225fd373..2a7af765bfb6 100644
--- a/arch/ppc64/Makefile
+++ b/arch/ppc64/Makefile
@@ -81,12 +81,14 @@ CFLAGS += $(call cc-option,-funit-at-a-time)
81 81
82head-y := arch/ppc64/kernel/head.o 82head-y := arch/ppc64/kernel/head.o
83head-y += arch/powerpc/kernel/fpu.o 83head-y += arch/powerpc/kernel/fpu.o
84head-y += arch/powerpc/kernel/entry_64.o
84 85
85libs-y += arch/ppc64/lib/ 86libs-y += arch/ppc64/lib/
86core-y += arch/ppc64/kernel/ arch/powerpc/kernel/ 87core-y += arch/ppc64/kernel/ arch/powerpc/kernel/
87core-y += arch/powerpc/mm/ 88core-y += arch/powerpc/mm/
88core-y += arch/powerpc/sysdev/ 89core-y += arch/powerpc/sysdev/
89core-y += arch/powerpc/platforms/ 90core-y += arch/powerpc/platforms/
91core-y += arch/powerpc/lib/
90core-$(CONFIG_XMON) += arch/ppc64/xmon/ 92core-$(CONFIG_XMON) += arch/ppc64/xmon/
91drivers-$(CONFIG_OPROFILE) += arch/powerpc/oprofile/ 93drivers-$(CONFIG_OPROFILE) += arch/powerpc/oprofile/
92 94
diff --git a/arch/ppc64/kernel/Makefile b/arch/ppc64/kernel/Makefile
index 863bd7d746fb..a20a305b825d 100644
--- a/arch/ppc64/kernel/Makefile
+++ b/arch/ppc64/kernel/Makefile
@@ -7,7 +7,7 @@ ifneq ($(CONFIG_PPC_MERGE),y)
7EXTRA_CFLAGS += -mno-minimal-toc 7EXTRA_CFLAGS += -mno-minimal-toc
8extra-y := head.o vmlinux.lds 8extra-y := head.o vmlinux.lds
9 9
10obj-y := entry.o misc.o prom.o 10obj-y := misc.o prom.o
11 11
12endif 12endif
13 13
diff --git a/arch/ppc64/kernel/entry.S b/arch/ppc64/kernel/entry.S
deleted file mode 100644
index 5d2fcbe384c1..000000000000
--- a/arch/ppc64/kernel/entry.S
+++ /dev/null
@@ -1,845 +0,0 @@
1/*
2 * arch/ppc64/kernel/entry.S
3 *
4 * PowerPC version
5 * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
6 * Rewritten by Cort Dougan (cort@cs.nmt.edu) for PReP
7 * Copyright (C) 1996 Cort Dougan <cort@cs.nmt.edu>
8 * Adapted for Power Macintosh by Paul Mackerras.
9 * Low-level exception handlers and MMU support
10 * rewritten by Paul Mackerras.
11 * Copyright (C) 1996 Paul Mackerras.
12 * MPC8xx modifications Copyright (C) 1997 Dan Malek (dmalek@jlc.net).
13 *
14 * This file contains the system call entry code, context switch
15 * code, and exception/interrupt return code for PowerPC.
16 *
17 * This program is free software; you can redistribute it and/or
18 * modify it under the terms of the GNU General Public License
19 * as published by the Free Software Foundation; either version
20 * 2 of the License, or (at your option) any later version.
21 */
22
23#include <linux/config.h>
24#include <linux/errno.h>
25#include <asm/unistd.h>
26#include <asm/processor.h>
27#include <asm/page.h>
28#include <asm/mmu.h>
29#include <asm/thread_info.h>
30#include <asm/ppc_asm.h>
31#include <asm/asm-offsets.h>
32#include <asm/cputable.h>
33
34#ifdef CONFIG_PPC_ISERIES
35#define DO_SOFT_DISABLE
36#endif
37
38/*
39 * System calls.
40 */
41 .section ".toc","aw"
42.SYS_CALL_TABLE:
43 .tc .sys_call_table[TC],.sys_call_table
44
45.SYS_CALL_TABLE32:
46 .tc .sys_call_table32[TC],.sys_call_table32
47
48/* This value is used to mark exception frames on the stack. */
49exception_marker:
50 .tc ID_72656773_68657265[TC],0x7265677368657265
51
52 .section ".text"
53 .align 7
54
55#undef SHOW_SYSCALLS
56
57 .globl system_call_common
58system_call_common:
59 andi. r10,r12,MSR_PR
60 mr r10,r1
61 addi r1,r1,-INT_FRAME_SIZE
62 beq- 1f
63 ld r1,PACAKSAVE(r13)
641: std r10,0(r1)
65 std r11,_NIP(r1)
66 std r12,_MSR(r1)
67 std r0,GPR0(r1)
68 std r10,GPR1(r1)
69 std r2,GPR2(r1)
70 std r3,GPR3(r1)
71 std r4,GPR4(r1)
72 std r5,GPR5(r1)
73 std r6,GPR6(r1)
74 std r7,GPR7(r1)
75 std r8,GPR8(r1)
76 li r11,0
77 std r11,GPR9(r1)
78 std r11,GPR10(r1)
79 std r11,GPR11(r1)
80 std r11,GPR12(r1)
81 std r9,GPR13(r1)
82 crclr so
83 mfcr r9
84 mflr r10
85 li r11,0xc01
86 std r9,_CCR(r1)
87 std r10,_LINK(r1)
88 std r11,_TRAP(r1)
89 mfxer r9
90 mfctr r10
91 std r9,_XER(r1)
92 std r10,_CTR(r1)
93 std r3,ORIG_GPR3(r1)
94 ld r2,PACATOC(r13)
95 addi r9,r1,STACK_FRAME_OVERHEAD
96 ld r11,exception_marker@toc(r2)
97 std r11,-16(r9) /* "regshere" marker */
98#ifdef CONFIG_PPC_ISERIES
99 /* Hack for handling interrupts when soft-enabling on iSeries */
100 cmpdi cr1,r0,0x5555 /* syscall 0x5555 */
101 andi. r10,r12,MSR_PR /* from kernel */
102 crand 4*cr0+eq,4*cr1+eq,4*cr0+eq
103 beq hardware_interrupt_entry
104 lbz r10,PACAPROCENABLED(r13)
105 std r10,SOFTE(r1)
106#endif
107 mfmsr r11
108 ori r11,r11,MSR_EE
109 mtmsrd r11,1
110
111#ifdef SHOW_SYSCALLS
112 bl .do_show_syscall
113 REST_GPR(0,r1)
114 REST_4GPRS(3,r1)
115 REST_2GPRS(7,r1)
116 addi r9,r1,STACK_FRAME_OVERHEAD
117#endif
118 clrrdi r11,r1,THREAD_SHIFT
119 li r12,0
120 ld r10,TI_FLAGS(r11)
121 stb r12,TI_SC_NOERR(r11)
122 andi. r11,r10,_TIF_SYSCALL_T_OR_A
123 bne- syscall_dotrace
124syscall_dotrace_cont:
125 cmpldi 0,r0,NR_syscalls
126 bge- syscall_enosys
127
128system_call: /* label this so stack traces look sane */
129/*
130 * Need to vector to 32 Bit or default sys_call_table here,
131 * based on caller's run-mode / personality.
132 */
133 ld r11,.SYS_CALL_TABLE@toc(2)
134 andi. r10,r10,_TIF_32BIT
135 beq 15f
136 ld r11,.SYS_CALL_TABLE32@toc(2)
137 clrldi r3,r3,32
138 clrldi r4,r4,32
139 clrldi r5,r5,32
140 clrldi r6,r6,32
141 clrldi r7,r7,32
142 clrldi r8,r8,32
14315:
144 slwi r0,r0,3
145 ldx r10,r11,r0 /* Fetch system call handler [ptr] */
146 mtctr r10
147 bctrl /* Call handler */
148
149syscall_exit:
150#ifdef SHOW_SYSCALLS
151 std r3,GPR3(r1)
152 bl .do_show_syscall_exit
153 ld r3,GPR3(r1)
154#endif
155 std r3,RESULT(r1)
156 ld r5,_CCR(r1)
157 li r10,-_LAST_ERRNO
158 cmpld r3,r10
159 clrrdi r12,r1,THREAD_SHIFT
160 bge- syscall_error
161syscall_error_cont:
162
163 /* check for syscall tracing or audit */
164 ld r9,TI_FLAGS(r12)
165 andi. r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SINGLESTEP)
166 bne- syscall_exit_trace
167syscall_exit_trace_cont:
168
169 /* disable interrupts so current_thread_info()->flags can't change,
170 and so that we don't get interrupted after loading SRR0/1. */
171 ld r8,_MSR(r1)
172 andi. r10,r8,MSR_RI
173 beq- unrecov_restore
174 mfmsr r10
175 rldicl r10,r10,48,1
176 rotldi r10,r10,16
177 mtmsrd r10,1
178 ld r9,TI_FLAGS(r12)
179 andi. r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SIGPENDING|_TIF_NEED_RESCHED)
180 bne- syscall_exit_work
181 ld r7,_NIP(r1)
182 stdcx. r0,0,r1 /* to clear the reservation */
183 andi. r6,r8,MSR_PR
184 ld r4,_LINK(r1)
185 beq- 1f /* only restore r13 if */
186 ld r13,GPR13(r1) /* returning to usermode */
1871: ld r2,GPR2(r1)
188 li r12,MSR_RI
189 andc r10,r10,r12
190 mtmsrd r10,1 /* clear MSR.RI */
191 ld r1,GPR1(r1)
192 mtlr r4
193 mtcr r5
194 mtspr SPRN_SRR0,r7
195 mtspr SPRN_SRR1,r8
196 rfid
197 b . /* prevent speculative execution */
198
199syscall_enosys:
200 li r3,-ENOSYS
201 std r3,RESULT(r1)
202 clrrdi r12,r1,THREAD_SHIFT
203 ld r5,_CCR(r1)
204
205syscall_error:
206 lbz r11,TI_SC_NOERR(r12)
207 cmpwi 0,r11,0
208 bne- syscall_error_cont
209 neg r3,r3
210 oris r5,r5,0x1000 /* Set SO bit in CR */
211 std r5,_CCR(r1)
212 b syscall_error_cont
213
214/* Traced system call support */
215syscall_dotrace:
216 bl .save_nvgprs
217 addi r3,r1,STACK_FRAME_OVERHEAD
218 bl .do_syscall_trace_enter
219 ld r0,GPR0(r1) /* Restore original registers */
220 ld r3,GPR3(r1)
221 ld r4,GPR4(r1)
222 ld r5,GPR5(r1)
223 ld r6,GPR6(r1)
224 ld r7,GPR7(r1)
225 ld r8,GPR8(r1)
226 addi r9,r1,STACK_FRAME_OVERHEAD
227 clrrdi r10,r1,THREAD_SHIFT
228 ld r10,TI_FLAGS(r10)
229 b syscall_dotrace_cont
230
231syscall_exit_trace:
232 std r3,GPR3(r1)
233 bl .save_nvgprs
234 addi r3,r1,STACK_FRAME_OVERHEAD
235 bl .do_syscall_trace_leave
236 REST_NVGPRS(r1)
237 ld r3,GPR3(r1)
238 ld r5,_CCR(r1)
239 clrrdi r12,r1,THREAD_SHIFT
240 b syscall_exit_trace_cont
241
242/* Stuff to do on exit from a system call. */
243syscall_exit_work:
244 std r3,GPR3(r1)
245 std r5,_CCR(r1)
246 b .ret_from_except_lite
247
248/* Save non-volatile GPRs, if not already saved. */
249_GLOBAL(save_nvgprs)
250 ld r11,_TRAP(r1)
251 andi. r0,r11,1
252 beqlr-
253 SAVE_NVGPRS(r1)
254 clrrdi r0,r11,1
255 std r0,_TRAP(r1)
256 blr
257
258/*
259 * The sigsuspend and rt_sigsuspend system calls can call do_signal
260 * and thus put the process into the stopped state where we might
261 * want to examine its user state with ptrace. Therefore we need
262 * to save all the nonvolatile registers (r14 - r31) before calling
263 * the C code. Similarly, fork, vfork and clone need the full
264 * register state on the stack so that it can be copied to the child.
265 */
266_GLOBAL(ppc32_sigsuspend)
267 bl .save_nvgprs
268 bl .compat_sys_sigsuspend
269 b 70f
270
271_GLOBAL(ppc64_rt_sigsuspend)
272 bl .save_nvgprs
273 bl .sys_rt_sigsuspend
274 b 70f
275
276_GLOBAL(ppc32_rt_sigsuspend)
277 bl .save_nvgprs
278 bl .compat_sys_rt_sigsuspend
27970: cmpdi 0,r3,0
280 /* If it returned an error, we need to return via syscall_exit to set
281 the SO bit in cr0 and potentially stop for ptrace. */
282 bne syscall_exit
283 /* If sigsuspend() returns zero, we are going into a signal handler. We
284 may need to call audit_syscall_exit() to mark the exit from sigsuspend() */
285#ifdef CONFIG_AUDIT
286 ld r3,PACACURRENT(r13)
287 ld r4,AUDITCONTEXT(r3)
288 cmpdi 0,r4,0
289 beq .ret_from_except /* No audit_context: Leave immediately. */
290 li r4, 2 /* AUDITSC_FAILURE */
291 li r5,-4 /* It's always -EINTR */
292 bl .audit_syscall_exit
293#endif
294 b .ret_from_except
295
296_GLOBAL(ppc_fork)
297 bl .save_nvgprs
298 bl .sys_fork
299 b syscall_exit
300
301_GLOBAL(ppc_vfork)
302 bl .save_nvgprs
303 bl .sys_vfork
304 b syscall_exit
305
306_GLOBAL(ppc_clone)
307 bl .save_nvgprs
308 bl .sys_clone
309 b syscall_exit
310
311_GLOBAL(ppc32_swapcontext)
312 bl .save_nvgprs
313 bl .compat_sys_swapcontext
314 b 80f
315
316_GLOBAL(ppc64_swapcontext)
317 bl .save_nvgprs
318 bl .sys_swapcontext
319 b 80f
320
321_GLOBAL(ppc32_sigreturn)
322 bl .compat_sys_sigreturn
323 b 80f
324
325_GLOBAL(ppc32_rt_sigreturn)
326 bl .compat_sys_rt_sigreturn
327 b 80f
328
329_GLOBAL(ppc64_rt_sigreturn)
330 bl .sys_rt_sigreturn
331
33280: cmpdi 0,r3,0
333 blt syscall_exit
334 clrrdi r4,r1,THREAD_SHIFT
335 ld r4,TI_FLAGS(r4)
336 andi. r4,r4,(_TIF_SYSCALL_T_OR_A|_TIF_SINGLESTEP)
337 beq+ 81f
338 addi r3,r1,STACK_FRAME_OVERHEAD
339 bl .do_syscall_trace_leave
34081: b .ret_from_except
341
342_GLOBAL(ret_from_fork)
343 bl .schedule_tail
344 REST_NVGPRS(r1)
345 li r3,0
346 b syscall_exit
347
348/*
349 * This routine switches between two different tasks. The process
350 * state of one is saved on its kernel stack. Then the state
351 * of the other is restored from its kernel stack. The memory
352 * management hardware is updated to the second process's state.
353 * Finally, we can return to the second process, via ret_from_except.
354 * On entry, r3 points to the THREAD for the current task, r4
355 * points to the THREAD for the new task.
356 *
357 * Note: there are two ways to get to the "going out" portion
358 * of this code; either by coming in via the entry (_switch)
359 * or via "fork" which must set up an environment equivalent
360 * to the "_switch" path. If you change this you'll have to change
361 * the fork code also.
362 *
363 * The code which creates the new task context is in 'copy_thread'
364 * in arch/ppc64/kernel/process.c
365 */
366 .align 7
367_GLOBAL(_switch)
368 mflr r0
369 std r0,16(r1)
370 stdu r1,-SWITCH_FRAME_SIZE(r1)
371 /* r3-r13 are caller saved -- Cort */
372 SAVE_8GPRS(14, r1)
373 SAVE_10GPRS(22, r1)
374 mflr r20 /* Return to switch caller */
375 mfmsr r22
376 li r0, MSR_FP
377#ifdef CONFIG_ALTIVEC
378BEGIN_FTR_SECTION
379 oris r0,r0,MSR_VEC@h /* Disable altivec */
380 mfspr r24,SPRN_VRSAVE /* save vrsave register value */
381 std r24,THREAD_VRSAVE(r3)
382END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
383#endif /* CONFIG_ALTIVEC */
384 and. r0,r0,r22
385 beq+ 1f
386 andc r22,r22,r0
387 mtmsrd r22
388 isync
3891: std r20,_NIP(r1)
390 mfcr r23
391 std r23,_CCR(r1)
392 std r1,KSP(r3) /* Set old stack pointer */
393
394#ifdef CONFIG_SMP
395 /* We need a sync somewhere here to make sure that if the
396 * previous task gets rescheduled on another CPU, it sees all
397 * stores it has performed on this one.
398 */
399 sync
400#endif /* CONFIG_SMP */
401
402 addi r6,r4,-THREAD /* Convert THREAD to 'current' */
403 std r6,PACACURRENT(r13) /* Set new 'current' */
404
405 ld r8,KSP(r4) /* new stack pointer */
406BEGIN_FTR_SECTION
407 clrrdi r6,r8,28 /* get its ESID */
408 clrrdi r9,r1,28 /* get current sp ESID */
409 clrldi. r0,r6,2 /* is new ESID c00000000? */
410 cmpd cr1,r6,r9 /* or is new ESID the same as current ESID? */
411 cror eq,4*cr1+eq,eq
412 beq 2f /* if yes, don't slbie it */
413
414 /* Bolt in the new stack SLB entry */
415 ld r7,KSP_VSID(r4) /* Get new stack's VSID */
416 oris r0,r6,(SLB_ESID_V)@h
417 ori r0,r0,(SLB_NUM_BOLTED-1)@l
418 slbie r6
419 slbie r6 /* Workaround POWER5 < DD2.1 issue */
420 slbmte r7,r0
421 isync
422
4232:
424END_FTR_SECTION_IFSET(CPU_FTR_SLB)
425 clrrdi r7,r8,THREAD_SHIFT /* base of new stack */
426 /* Note: this uses SWITCH_FRAME_SIZE rather than INT_FRAME_SIZE
427 because we don't need to leave the 288-byte ABI gap at the
428 top of the kernel stack. */
429 addi r7,r7,THREAD_SIZE-SWITCH_FRAME_SIZE
430
431 mr r1,r8 /* start using new stack pointer */
432 std r7,PACAKSAVE(r13)
433
434 ld r6,_CCR(r1)
435 mtcrf 0xFF,r6
436
437#ifdef CONFIG_ALTIVEC
438BEGIN_FTR_SECTION
439 ld r0,THREAD_VRSAVE(r4)
440 mtspr SPRN_VRSAVE,r0 /* if G4, restore VRSAVE reg */
441END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
442#endif /* CONFIG_ALTIVEC */
443
444 /* r3-r13 are destroyed -- Cort */
445 REST_8GPRS(14, r1)
446 REST_10GPRS(22, r1)
447
448 /* convert old thread to its task_struct for return value */
449 addi r3,r3,-THREAD
450 ld r7,_NIP(r1) /* Return to _switch caller in new task */
451 mtlr r7
452 addi r1,r1,SWITCH_FRAME_SIZE
453 blr
454
455 .align 7
456_GLOBAL(ret_from_except)
457 ld r11,_TRAP(r1)
458 andi. r0,r11,1
459 bne .ret_from_except_lite
460 REST_NVGPRS(r1)
461
462_GLOBAL(ret_from_except_lite)
463 /*
464 * Disable interrupts so that current_thread_info()->flags
465 * can't change between when we test it and when we return
466 * from the interrupt.
467 */
468 mfmsr r10 /* Get current interrupt state */
469 rldicl r9,r10,48,1 /* clear MSR_EE */
470 rotldi r9,r9,16
471 mtmsrd r9,1 /* Update machine state */
472
473#ifdef CONFIG_PREEMPT
474 clrrdi r9,r1,THREAD_SHIFT /* current_thread_info() */
475 li r0,_TIF_NEED_RESCHED /* bits to check */
476 ld r3,_MSR(r1)
477 ld r4,TI_FLAGS(r9)
478 /* Move MSR_PR bit in r3 to _TIF_SIGPENDING position in r0 */
479 rlwimi r0,r3,32+TIF_SIGPENDING-MSR_PR_LG,_TIF_SIGPENDING
480 and. r0,r4,r0 /* check NEED_RESCHED and maybe SIGPENDING */
481 bne do_work
482
483#else /* !CONFIG_PREEMPT */
484 ld r3,_MSR(r1) /* Returning to user mode? */
485 andi. r3,r3,MSR_PR
486 beq restore /* if not, just restore regs and return */
487
488 /* Check current_thread_info()->flags */
489 clrrdi r9,r1,THREAD_SHIFT
490 ld r4,TI_FLAGS(r9)
491 andi. r0,r4,_TIF_USER_WORK_MASK
492 bne do_work
493#endif
494
495restore:
496#ifdef CONFIG_PPC_ISERIES
497 ld r5,SOFTE(r1)
498 cmpdi 0,r5,0
499 beq 4f
500 /* Check for pending interrupts (iSeries) */
501 ld r3,PACALPPACA+LPPACAANYINT(r13)
502 cmpdi r3,0
503 beq+ 4f /* skip do_IRQ if no interrupts */
504
505 li r3,0
506 stb r3,PACAPROCENABLED(r13) /* ensure we are soft-disabled */
507 ori r10,r10,MSR_EE
508 mtmsrd r10 /* hard-enable again */
509 addi r3,r1,STACK_FRAME_OVERHEAD
510 bl .do_IRQ
511 b .ret_from_except_lite /* loop back and handle more */
512
5134: stb r5,PACAPROCENABLED(r13)
514#endif
515
516 ld r3,_MSR(r1)
517 andi. r0,r3,MSR_RI
518 beq- unrecov_restore
519
520 andi. r0,r3,MSR_PR
521
522 /*
523 * r13 is our per cpu area, only restore it if we are returning to
524 * userspace
525 */
526 beq 1f
527 REST_GPR(13, r1)
5281:
529 ld r3,_CTR(r1)
530 ld r0,_LINK(r1)
531 mtctr r3
532 mtlr r0
533 ld r3,_XER(r1)
534 mtspr SPRN_XER,r3
535
536 REST_8GPRS(5, r1)
537
538 stdcx. r0,0,r1 /* to clear the reservation */
539
540 mfmsr r0
541 li r2, MSR_RI
542 andc r0,r0,r2
543 mtmsrd r0,1
544
545 ld r0,_MSR(r1)
546 mtspr SPRN_SRR1,r0
547
548 ld r2,_CCR(r1)
549 mtcrf 0xFF,r2
550 ld r2,_NIP(r1)
551 mtspr SPRN_SRR0,r2
552
553 ld r0,GPR0(r1)
554 ld r2,GPR2(r1)
555 ld r3,GPR3(r1)
556 ld r4,GPR4(r1)
557 ld r1,GPR1(r1)
558
559 rfid
560 b . /* prevent speculative execution */
561
562/* Note: this must change if we start using the TIF_NOTIFY_RESUME bit */
563do_work:
564#ifdef CONFIG_PREEMPT
565 andi. r0,r3,MSR_PR /* Returning to user mode? */
566 bne user_work
567 /* Check that preempt_count() == 0 and interrupts are enabled */
568 lwz r8,TI_PREEMPT(r9)
569 cmpwi cr1,r8,0
570#ifdef CONFIG_PPC_ISERIES
571 ld r0,SOFTE(r1)
572 cmpdi r0,0
573#else
574 andi. r0,r3,MSR_EE
575#endif
576 crandc eq,cr1*4+eq,eq
577 bne restore
578 /* here we are preempting the current task */
5791:
580#ifdef CONFIG_PPC_ISERIES
581 li r0,1
582 stb r0,PACAPROCENABLED(r13)
583#endif
584 ori r10,r10,MSR_EE
585 mtmsrd r10,1 /* reenable interrupts */
586 bl .preempt_schedule
587 mfmsr r10
588 clrrdi r9,r1,THREAD_SHIFT
589 rldicl r10,r10,48,1 /* disable interrupts again */
590 rotldi r10,r10,16
591 mtmsrd r10,1
592 ld r4,TI_FLAGS(r9)
593 andi. r0,r4,_TIF_NEED_RESCHED
594 bne 1b
595 b restore
596
597user_work:
598#endif
599 /* Enable interrupts */
600 ori r10,r10,MSR_EE
601 mtmsrd r10,1
602
603 andi. r0,r4,_TIF_NEED_RESCHED
604 beq 1f
605 bl .schedule
606 b .ret_from_except_lite
607
6081: bl .save_nvgprs
609 li r3,0
610 addi r4,r1,STACK_FRAME_OVERHEAD
611 bl .do_signal
612 b .ret_from_except
613
614unrecov_restore:
615 addi r3,r1,STACK_FRAME_OVERHEAD
616 bl .unrecoverable_exception
617 b unrecov_restore
618
619#ifdef CONFIG_PPC_RTAS
620/*
621 * On CHRP, the Run-Time Abstraction Services (RTAS) have to be
622 * called with the MMU off.
623 *
624 * In addition, we need to be in 32b mode, at least for now.
625 *
626 * Note: r3 is an input parameter to rtas, so don't trash it...
627 */
628_GLOBAL(enter_rtas)
629 mflr r0
630 std r0,16(r1)
631 stdu r1,-RTAS_FRAME_SIZE(r1) /* Save SP and create stack space. */
632
633 /* Because RTAS is running in 32b mode, it clobbers the high order half
634 * of all registers that it saves. We therefore save those registers
635 * RTAS might touch to the stack. (r0, r3-r13 are caller saved)
636 */
637 SAVE_GPR(2, r1) /* Save the TOC */
638 SAVE_GPR(13, r1) /* Save paca */
639 SAVE_8GPRS(14, r1) /* Save the non-volatiles */
640 SAVE_10GPRS(22, r1) /* ditto */
641
642 mfcr r4
643 std r4,_CCR(r1)
644 mfctr r5
645 std r5,_CTR(r1)
646 mfspr r6,SPRN_XER
647 std r6,_XER(r1)
648 mfdar r7
649 std r7,_DAR(r1)
650 mfdsisr r8
651 std r8,_DSISR(r1)
652 mfsrr0 r9
653 std r9,_SRR0(r1)
654 mfsrr1 r10
655 std r10,_SRR1(r1)
656
657 /* There is no way it is acceptable to get here with interrupts enabled,
658 * check it with the asm equivalent of WARN_ON
659 */
660 mfmsr r6
661 andi. r0,r6,MSR_EE
6621: tdnei r0,0
663.section __bug_table,"a"
664 .llong 1b,__LINE__ + 0x1000000, 1f, 2f
665.previous
666.section .rodata,"a"
6671: .asciz __FILE__
6682: .asciz "enter_rtas"
669.previous
670
671 /* Unfortunately, the stack pointer and the MSR are also clobbered,
672 * so they are saved in the PACA which allows us to restore
673 * our original state after RTAS returns.
674 */
675 std r1,PACAR1(r13)
676 std r6,PACASAVEDMSR(r13)
677
678 /* Setup our real return addr */
679 SET_REG_TO_LABEL(r4,.rtas_return_loc)
680 SET_REG_TO_CONST(r9,KERNELBASE)
681 sub r4,r4,r9
682 mtlr r4
683
684 li r0,0
685 ori r0,r0,MSR_EE|MSR_SE|MSR_BE|MSR_RI
686 andc r0,r6,r0
687
688 li r9,1
689 rldicr r9,r9,MSR_SF_LG,(63-MSR_SF_LG)
690 ori r9,r9,MSR_IR|MSR_DR|MSR_FE0|MSR_FE1|MSR_FP
691 andc r6,r0,r9
692 ori r6,r6,MSR_RI
693 sync /* disable interrupts so SRR0/1 */
694 mtmsrd r0 /* don't get trashed */
695
696 SET_REG_TO_LABEL(r4,rtas)
697 ld r5,RTASENTRY(r4) /* get the rtas->entry value */
698 ld r4,RTASBASE(r4) /* get the rtas->base value */
699
700 mtspr SPRN_SRR0,r5
701 mtspr SPRN_SRR1,r6
702 rfid
703 b . /* prevent speculative execution */
704
705_STATIC(rtas_return_loc)
706 /* relocation is off at this point */
707 mfspr r4,SPRN_SPRG3 /* Get PACA */
708 SET_REG_TO_CONST(r5, KERNELBASE)
709 sub r4,r4,r5 /* RELOC the PACA base pointer */
710
711 mfmsr r6
712 li r0,MSR_RI
713 andc r6,r6,r0
714 sync
715 mtmsrd r6
716
717 ld r1,PACAR1(r4) /* Restore our SP */
718 LOADADDR(r3,.rtas_restore_regs)
719 ld r4,PACASAVEDMSR(r4) /* Restore our MSR */
720
721 mtspr SPRN_SRR0,r3
722 mtspr SPRN_SRR1,r4
723 rfid
724 b . /* prevent speculative execution */
725
726_STATIC(rtas_restore_regs)
727 /* relocation is on at this point */
728 REST_GPR(2, r1) /* Restore the TOC */
729 REST_GPR(13, r1) /* Restore paca */
730 REST_8GPRS(14, r1) /* Restore the non-volatiles */
731 REST_10GPRS(22, r1) /* ditto */
732
733 mfspr r13,SPRN_SPRG3
734
735 ld r4,_CCR(r1)
736 mtcr r4
737 ld r5,_CTR(r1)
738 mtctr r5
739 ld r6,_XER(r1)
740 mtspr SPRN_XER,r6
741 ld r7,_DAR(r1)
742 mtdar r7
743 ld r8,_DSISR(r1)
744 mtdsisr r8
745 ld r9,_SRR0(r1)
746 mtsrr0 r9
747 ld r10,_SRR1(r1)
748 mtsrr1 r10
749
750 addi r1,r1,RTAS_FRAME_SIZE /* Unstack our frame */
751 ld r0,16(r1) /* get return address */
752
753 mtlr r0
754 blr /* return to caller */
755
756#endif /* CONFIG_PPC_RTAS */
757
758#ifdef CONFIG_PPC_MULTIPLATFORM
759
760_GLOBAL(enter_prom)
761 mflr r0
762 std r0,16(r1)
763 stdu r1,-PROM_FRAME_SIZE(r1) /* Save SP and create stack space */
764
765 /* Because PROM is running in 32b mode, it clobbers the high order half
766 * of all registers that it saves. We therefore save those registers
767 * PROM might touch to the stack. (r0, r3-r13 are caller saved)
768 */
769 SAVE_8GPRS(2, r1)
770 SAVE_GPR(13, r1)
771 SAVE_8GPRS(14, r1)
772 SAVE_10GPRS(22, r1)
773 mfcr r4
774 std r4,_CCR(r1)
775 mfctr r5
776 std r5,_CTR(r1)
777 mfspr r6,SPRN_XER
778 std r6,_XER(r1)
779 mfdar r7
780 std r7,_DAR(r1)
781 mfdsisr r8
782 std r8,_DSISR(r1)
783 mfsrr0 r9
784 std r9,_SRR0(r1)
785 mfsrr1 r10
786 std r10,_SRR1(r1)
787 mfmsr r11
788 std r11,_MSR(r1)
789
790 /* Get the PROM entrypoint */
791 ld r0,GPR4(r1)
792 mtlr r0
793
794 /* Switch MSR to 32 bits mode
795 */
796 mfmsr r11
797 li r12,1
798 rldicr r12,r12,MSR_SF_LG,(63-MSR_SF_LG)
799 andc r11,r11,r12
800 li r12,1
801 rldicr r12,r12,MSR_ISF_LG,(63-MSR_ISF_LG)
802 andc r11,r11,r12
803 mtmsrd r11
804 isync
805
806 /* Restore arguments & enter PROM here... */
807 ld r3,GPR3(r1)
808 blrl
809
810 /* Just make sure that r1 top 32 bits didn't get
811 * corrupt by OF
812 */
813 rldicl r1,r1,0,32
814
815 /* Restore the MSR (back to 64 bits) */
816 ld r0,_MSR(r1)
817 mtmsrd r0
818 isync
819
820 /* Restore other registers */
821 REST_GPR(2, r1)
822 REST_GPR(13, r1)
823 REST_8GPRS(14, r1)
824 REST_10GPRS(22, r1)
825 ld r4,_CCR(r1)
826 mtcr r4
827 ld r5,_CTR(r1)
828 mtctr r5
829 ld r6,_XER(r1)
830 mtspr SPRN_XER,r6
831 ld r7,_DAR(r1)
832 mtdar r7
833 ld r8,_DSISR(r1)
834 mtdsisr r8
835 ld r9,_SRR0(r1)
836 mtsrr0 r9
837 ld r10,_SRR1(r1)
838 mtsrr1 r10
839
840 addi r1,r1,PROM_FRAME_SIZE
841 ld r0,16(r1)
842 mtlr r0
843 blr
844
845#endif /* CONFIG_PPC_MULTIPLATFORM */
diff --git a/arch/ppc64/kernel/misc.S b/arch/ppc64/kernel/misc.S
index 9cae3d5c40e6..077507ffbab8 100644
--- a/arch/ppc64/kernel/misc.S
+++ b/arch/ppc64/kernel/misc.S
@@ -867,566 +867,3 @@ _GLOBAL(kexec_sequence)
867 li r5,0 867 li r5,0
868 blr /* image->start(physid, image->start, 0); */ 868 blr /* image->start(physid, image->start, 0); */
869#endif /* CONFIG_KEXEC */ 869#endif /* CONFIG_KEXEC */
870
871/* Why isn't this a) automatic, b) written in 'C'? */
872 .balign 8
873_GLOBAL(sys_call_table32)
874 .llong .sys_restart_syscall /* 0 */
875 .llong .sys_exit
876 .llong .ppc_fork
877 .llong .sys_read
878 .llong .sys_write
879 .llong .compat_sys_open /* 5 */
880 .llong .sys_close
881 .llong .compat_sys_waitpid
882 .llong .compat_sys_creat
883 .llong .sys_link
884 .llong .sys_unlink /* 10 */
885 .llong .compat_sys_execve
886 .llong .sys_chdir
887 .llong .compat_sys_time
888 .llong .sys_mknod
889 .llong .sys_chmod /* 15 */
890 .llong .sys_lchown
891 .llong .sys_ni_syscall /* old break syscall */
892 .llong .sys_ni_syscall /* old stat syscall */
893 .llong .ppc32_lseek
894 .llong .sys_getpid /* 20 */
895 .llong .compat_sys_mount
896 .llong .sys_oldumount
897 .llong .sys_setuid
898 .llong .sys_getuid
899 .llong .compat_sys_stime /* 25 */
900 .llong .compat_sys_ptrace
901 .llong .sys_alarm
902 .llong .sys_ni_syscall /* old fstat syscall */
903 .llong .compat_sys_pause
904 .llong .compat_sys_utime /* 30 */
905 .llong .sys_ni_syscall /* old stty syscall */
906 .llong .sys_ni_syscall /* old gtty syscall */
907 .llong .compat_sys_access
908 .llong .compat_sys_nice
909 .llong .sys_ni_syscall /* 35 - old ftime syscall */
910 .llong .sys_sync
911 .llong .compat_sys_kill
912 .llong .sys_rename
913 .llong .compat_sys_mkdir
914 .llong .sys_rmdir /* 40 */
915 .llong .sys_dup
916 .llong .sys_pipe
917 .llong .compat_sys_times
918 .llong .sys_ni_syscall /* old prof syscall */
919 .llong .sys_brk /* 45 */
920 .llong .sys_setgid
921 .llong .sys_getgid
922 .llong .sys_signal
923 .llong .sys_geteuid
924 .llong .sys_getegid /* 50 */
925 .llong .sys_acct
926 .llong .sys_umount
927 .llong .sys_ni_syscall /* old lock syscall */
928 .llong .compat_sys_ioctl
929 .llong .compat_sys_fcntl /* 55 */
930 .llong .sys_ni_syscall /* old mpx syscall */
931 .llong .compat_sys_setpgid
932 .llong .sys_ni_syscall /* old ulimit syscall */
933 .llong .sys_olduname
934 .llong .compat_sys_umask /* 60 */
935 .llong .sys_chroot
936 .llong .sys_ustat
937 .llong .sys_dup2
938 .llong .sys_getppid
939 .llong .sys_getpgrp /* 65 */
940 .llong .sys_setsid
941 .llong .compat_sys_sigaction
942 .llong .sys_sgetmask
943 .llong .compat_sys_ssetmask
944 .llong .sys_setreuid /* 70 */
945 .llong .sys_setregid
946 .llong .ppc32_sigsuspend
947 .llong .compat_sys_sigpending
948 .llong .compat_sys_sethostname
949 .llong .compat_sys_setrlimit /* 75 */
950 .llong .compat_sys_old_getrlimit
951 .llong .compat_sys_getrusage
952 .llong .compat_sys_gettimeofday
953 .llong .compat_sys_settimeofday
954 .llong .compat_sys_getgroups /* 80 */
955 .llong .compat_sys_setgroups
956 .llong .sys_ni_syscall /* old select syscall */
957 .llong .sys_symlink
958 .llong .sys_ni_syscall /* old lstat syscall */
959 .llong .compat_sys_readlink /* 85 */
960 .llong .sys_uselib
961 .llong .sys_swapon
962 .llong .sys_reboot
963 .llong .old32_readdir
964 .llong .sys_mmap /* 90 */
965 .llong .sys_munmap
966 .llong .sys_truncate
967 .llong .sys_ftruncate
968 .llong .sys_fchmod
969 .llong .sys_fchown /* 95 */
970 .llong .compat_sys_getpriority
971 .llong .compat_sys_setpriority
972 .llong .sys_ni_syscall /* old profil syscall */
973 .llong .compat_sys_statfs
974 .llong .compat_sys_fstatfs /* 100 */
975 .llong .sys_ni_syscall /* old ioperm syscall */
976 .llong .compat_sys_socketcall
977 .llong .compat_sys_syslog
978 .llong .compat_sys_setitimer
979 .llong .compat_sys_getitimer /* 105 */
980 .llong .compat_sys_newstat
981 .llong .compat_sys_newlstat
982 .llong .compat_sys_newfstat
983 .llong .sys_uname
984 .llong .sys_ni_syscall /* 110 old iopl syscall */
985 .llong .sys_vhangup
986 .llong .sys_ni_syscall /* old idle syscall */
987 .llong .sys_ni_syscall /* old vm86 syscall */
988 .llong .compat_sys_wait4
989 .llong .sys_swapoff /* 115 */
990 .llong .compat_sys_sysinfo
991 .llong .sys32_ipc
992 .llong .sys_fsync
993 .llong .ppc32_sigreturn
994 .llong .ppc_clone /* 120 */
995 .llong .compat_sys_setdomainname
996 .llong .ppc_newuname
997 .llong .sys_ni_syscall /* old modify_ldt syscall */
998 .llong .compat_sys_adjtimex
999 .llong .sys_mprotect /* 125 */
1000 .llong .compat_sys_sigprocmask
1001 .llong .sys_ni_syscall /* old create_module syscall */
1002 .llong .sys_init_module
1003 .llong .sys_delete_module
1004 .llong .sys_ni_syscall /* 130 old get_kernel_syms syscall */
1005 .llong .sys_quotactl
1006 .llong .compat_sys_getpgid
1007 .llong .sys_fchdir
1008 .llong .sys_bdflush
1009 .llong .compat_sys_sysfs /* 135 */
1010 .llong .ppc64_personality
1011 .llong .sys_ni_syscall /* for afs_syscall */
1012 .llong .sys_setfsuid
1013 .llong .sys_setfsgid
1014 .llong .sys_llseek /* 140 */
1015 .llong .compat_sys_getdents
1016 .llong .ppc32_select
1017 .llong .sys_flock
1018 .llong .sys_msync
1019 .llong .compat_sys_readv /* 145 */
1020 .llong .compat_sys_writev
1021 .llong .compat_sys_getsid
1022 .llong .sys_fdatasync
1023 .llong .compat_sys_sysctl
1024 .llong .sys_mlock /* 150 */
1025 .llong .sys_munlock
1026 .llong .sys_mlockall
1027 .llong .sys_munlockall
1028 .llong .compat_sys_sched_setparam
1029 .llong .compat_sys_sched_getparam /* 155 */
1030 .llong .compat_sys_sched_setscheduler
1031 .llong .compat_sys_sched_getscheduler
1032 .llong .sys_sched_yield
1033 .llong .compat_sys_sched_get_priority_max
1034 .llong .compat_sys_sched_get_priority_min /* 160 */
1035 .llong .compat_sys_sched_rr_get_interval
1036 .llong .compat_sys_nanosleep
1037 .llong .sys_mremap
1038 .llong .sys_setresuid
1039 .llong .sys_getresuid /* 165 */
1040 .llong .sys_ni_syscall /* old query_module syscall */
1041 .llong .sys_poll
1042 .llong .compat_sys_nfsservctl
1043 .llong .sys_setresgid
1044 .llong .sys_getresgid /* 170 */
1045 .llong .compat_sys_prctl
1046 .llong .ppc32_rt_sigreturn
1047 .llong .compat_sys_rt_sigaction
1048 .llong .compat_sys_rt_sigprocmask
1049 .llong .compat_sys_rt_sigpending /* 175 */
1050 .llong .compat_sys_rt_sigtimedwait
1051 .llong .compat_sys_rt_sigqueueinfo
1052 .llong .ppc32_rt_sigsuspend
1053 .llong .compat_sys_pread64
1054 .llong .compat_sys_pwrite64 /* 180 */
1055 .llong .sys_chown
1056 .llong .sys_getcwd
1057 .llong .sys_capget
1058 .llong .sys_capset
1059 .llong .compat_sys_sigaltstack /* 185 */
1060 .llong .compat_sys_sendfile
1061 .llong .sys_ni_syscall /* reserved for streams1 */
1062 .llong .sys_ni_syscall /* reserved for streams2 */
1063 .llong .ppc_vfork
1064 .llong .compat_sys_getrlimit /* 190 */
1065 .llong .compat_sys_readahead
1066 .llong .compat_sys_mmap2
1067 .llong .compat_sys_truncate64
1068 .llong .compat_sys_ftruncate64
1069 .llong .sys_stat64 /* 195 */
1070 .llong .sys_lstat64
1071 .llong .sys_fstat64
1072 .llong .compat_sys_pciconfig_read
1073 .llong .compat_sys_pciconfig_write
1074 .llong .compat_sys_pciconfig_iobase /* 200 - pciconfig_iobase */
1075 .llong .sys_ni_syscall /* reserved for MacOnLinux */
1076 .llong .sys_getdents64
1077 .llong .sys_pivot_root
1078 .llong .compat_sys_fcntl64
1079 .llong .sys_madvise /* 205 */
1080 .llong .sys_mincore
1081 .llong .sys_gettid
1082 .llong .sys_tkill
1083 .llong .sys_setxattr
1084 .llong .sys_lsetxattr /* 210 */
1085 .llong .sys_fsetxattr
1086 .llong .sys_getxattr
1087 .llong .sys_lgetxattr
1088 .llong .sys_fgetxattr
1089 .llong .sys_listxattr /* 215 */
1090 .llong .sys_llistxattr
1091 .llong .sys_flistxattr
1092 .llong .sys_removexattr
1093 .llong .sys_lremovexattr
1094 .llong .sys_fremovexattr /* 220 */
1095 .llong .compat_sys_futex
1096 .llong .compat_sys_sched_setaffinity
1097 .llong .compat_sys_sched_getaffinity
1098 .llong .sys_ni_syscall
1099 .llong .sys_ni_syscall /* 225 - reserved for tux */
1100 .llong .compat_sys_sendfile64
1101 .llong .compat_sys_io_setup
1102 .llong .sys_io_destroy
1103 .llong .compat_sys_io_getevents
1104 .llong .compat_sys_io_submit
1105 .llong .sys_io_cancel
1106 .llong .sys_set_tid_address
1107 .llong .ppc32_fadvise64
1108 .llong .sys_exit_group
1109 .llong .ppc32_lookup_dcookie /* 235 */
1110 .llong .sys_epoll_create
1111 .llong .sys_epoll_ctl
1112 .llong .sys_epoll_wait
1113 .llong .sys_remap_file_pages
1114 .llong .ppc32_timer_create /* 240 */
1115 .llong .compat_sys_timer_settime
1116 .llong .compat_sys_timer_gettime
1117 .llong .sys_timer_getoverrun
1118 .llong .sys_timer_delete
1119 .llong .compat_sys_clock_settime/* 245 */
1120 .llong .compat_sys_clock_gettime
1121 .llong .compat_sys_clock_getres
1122 .llong .compat_sys_clock_nanosleep
1123 .llong .ppc32_swapcontext
1124 .llong .compat_sys_tgkill /* 250 */
1125 .llong .compat_sys_utimes
1126 .llong .compat_sys_statfs64
1127 .llong .compat_sys_fstatfs64
1128 .llong .ppc_fadvise64_64 /* 32bit only fadvise64_64 */
1129 .llong .ppc_rtas /* 255 */
1130 .llong .sys_ni_syscall /* 256 reserved for sys_debug_setcontext */
1131 .llong .sys_ni_syscall /* 257 reserved for vserver */
1132 .llong .sys_ni_syscall /* 258 reserved for new sys_remap_file_pages */
1133 .llong .compat_sys_mbind
1134 .llong .compat_sys_get_mempolicy /* 260 */
1135 .llong .compat_sys_set_mempolicy
1136 .llong .compat_sys_mq_open
1137 .llong .sys_mq_unlink
1138 .llong .compat_sys_mq_timedsend
1139 .llong .compat_sys_mq_timedreceive /* 265 */
1140 .llong .compat_sys_mq_notify
1141 .llong .compat_sys_mq_getsetattr
1142 .llong .compat_sys_kexec_load
1143 .llong .compat_sys_add_key
1144 .llong .compat_sys_request_key /* 270 */
1145 .llong .compat_sys_keyctl
1146 .llong .compat_sys_waitid
1147 .llong .compat_sys_ioprio_set
1148 .llong .compat_sys_ioprio_get
1149 .llong .sys_inotify_init /* 275 */
1150 .llong .sys_inotify_add_watch
1151 .llong .sys_inotify_rm_watch
1152
1153 .balign 8
1154_GLOBAL(sys_call_table)
1155 .llong .sys_restart_syscall /* 0 */
1156 .llong .sys_exit
1157 .llong .ppc_fork
1158 .llong .sys_read
1159 .llong .sys_write
1160 .llong .sys_open /* 5 */
1161 .llong .sys_close
1162 .llong .sys_waitpid
1163 .llong .sys_creat
1164 .llong .sys_link
1165 .llong .sys_unlink /* 10 */
1166 .llong .sys_execve
1167 .llong .sys_chdir
1168 .llong .sys64_time
1169 .llong .sys_mknod
1170 .llong .sys_chmod /* 15 */
1171 .llong .sys_lchown
1172 .llong .sys_ni_syscall /* old break syscall */
1173 .llong .sys_ni_syscall /* old stat syscall */
1174 .llong .sys_lseek
1175 .llong .sys_getpid /* 20 */
1176 .llong .sys_mount
1177 .llong .sys_ni_syscall /* old umount syscall */
1178 .llong .sys_setuid
1179 .llong .sys_getuid
1180 .llong .sys_stime /* 25 */
1181 .llong .sys_ptrace
1182 .llong .sys_alarm
1183 .llong .sys_ni_syscall /* old fstat syscall */
1184 .llong .sys_pause
1185 .llong .sys_utime /* 30 */
1186 .llong .sys_ni_syscall /* old stty syscall */
1187 .llong .sys_ni_syscall /* old gtty syscall */
1188 .llong .sys_access
1189 .llong .sys_nice
1190 .llong .sys_ni_syscall /* 35 - old ftime syscall */
1191 .llong .sys_sync
1192 .llong .sys_kill
1193 .llong .sys_rename
1194 .llong .sys_mkdir
1195 .llong .sys_rmdir /* 40 */
1196 .llong .sys_dup
1197 .llong .sys_pipe
1198 .llong .sys_times
1199 .llong .sys_ni_syscall /* old prof syscall */
1200 .llong .sys_brk /* 45 */
1201 .llong .sys_setgid
1202 .llong .sys_getgid
1203 .llong .sys_signal
1204 .llong .sys_geteuid
1205 .llong .sys_getegid /* 50 */
1206 .llong .sys_acct
1207 .llong .sys_umount
1208 .llong .sys_ni_syscall /* old lock syscall */
1209 .llong .sys_ioctl
1210 .llong .sys_fcntl /* 55 */
1211 .llong .sys_ni_syscall /* old mpx syscall */
1212 .llong .sys_setpgid
1213 .llong .sys_ni_syscall /* old ulimit syscall */
1214 .llong .sys_ni_syscall /* old uname syscall */
1215 .llong .sys_umask /* 60 */
1216 .llong .sys_chroot
1217 .llong .sys_ustat
1218 .llong .sys_dup2
1219 .llong .sys_getppid
1220 .llong .sys_getpgrp /* 65 */
1221 .llong .sys_setsid
1222 .llong .sys_ni_syscall
1223 .llong .sys_sgetmask
1224 .llong .sys_ssetmask
1225 .llong .sys_setreuid /* 70 */
1226 .llong .sys_setregid
1227 .llong .sys_ni_syscall
1228 .llong .sys_ni_syscall
1229 .llong .sys_sethostname
1230 .llong .sys_setrlimit /* 75 */
1231 .llong .sys_ni_syscall /* old getrlimit syscall */
1232 .llong .sys_getrusage
1233 .llong .sys_gettimeofday
1234 .llong .sys_settimeofday
1235 .llong .sys_getgroups /* 80 */
1236 .llong .sys_setgroups
1237 .llong .sys_ni_syscall /* old select syscall */
1238 .llong .sys_symlink
1239 .llong .sys_ni_syscall /* old lstat syscall */
1240 .llong .sys_readlink /* 85 */
1241 .llong .sys_uselib
1242 .llong .sys_swapon
1243 .llong .sys_reboot
1244 .llong .sys_ni_syscall /* old readdir syscall */
1245 .llong .sys_mmap /* 90 */
1246 .llong .sys_munmap
1247 .llong .sys_truncate
1248 .llong .sys_ftruncate
1249 .llong .sys_fchmod
1250 .llong .sys_fchown /* 95 */
1251 .llong .sys_getpriority
1252 .llong .sys_setpriority
1253 .llong .sys_ni_syscall /* old profil syscall holder */
1254 .llong .sys_statfs
1255 .llong .sys_fstatfs /* 100 */
1256 .llong .sys_ni_syscall /* old ioperm syscall */
1257 .llong .sys_socketcall
1258 .llong .sys_syslog
1259 .llong .sys_setitimer
1260 .llong .sys_getitimer /* 105 */
1261 .llong .sys_newstat
1262 .llong .sys_newlstat
1263 .llong .sys_newfstat
1264 .llong .sys_ni_syscall /* old uname syscall */
1265 .llong .sys_ni_syscall /* 110 old iopl syscall */
1266 .llong .sys_vhangup
1267 .llong .sys_ni_syscall /* old idle syscall */
1268 .llong .sys_ni_syscall /* old vm86 syscall */
1269 .llong .sys_wait4
1270 .llong .sys_swapoff /* 115 */
1271 .llong .sys_sysinfo
1272 .llong .sys_ipc
1273 .llong .sys_fsync
1274 .llong .sys_ni_syscall
1275 .llong .ppc_clone /* 120 */
1276 .llong .sys_setdomainname
1277 .llong .ppc_newuname
1278 .llong .sys_ni_syscall /* old modify_ldt syscall */
1279 .llong .sys_adjtimex
1280 .llong .sys_mprotect /* 125 */
1281 .llong .sys_ni_syscall
1282 .llong .sys_ni_syscall /* old create_module syscall */
1283 .llong .sys_init_module
1284 .llong .sys_delete_module
1285 .llong .sys_ni_syscall /* 130 old get_kernel_syms syscall */
1286 .llong .sys_quotactl
1287 .llong .sys_getpgid
1288 .llong .sys_fchdir
1289 .llong .sys_bdflush
1290 .llong .sys_sysfs /* 135 */
1291 .llong .ppc64_personality
1292 .llong .sys_ni_syscall /* for afs_syscall */
1293 .llong .sys_setfsuid
1294 .llong .sys_setfsgid
1295 .llong .sys_llseek /* 140 */
1296 .llong .sys_getdents
1297 .llong .sys_select
1298 .llong .sys_flock
1299 .llong .sys_msync
1300 .llong .sys_readv /* 145 */
1301 .llong .sys_writev
1302 .llong .sys_getsid
1303 .llong .sys_fdatasync
1304 .llong .sys_sysctl
1305 .llong .sys_mlock /* 150 */
1306 .llong .sys_munlock
1307 .llong .sys_mlockall
1308 .llong .sys_munlockall
1309 .llong .sys_sched_setparam
1310 .llong .sys_sched_getparam /* 155 */
1311 .llong .sys_sched_setscheduler
1312 .llong .sys_sched_getscheduler
1313 .llong .sys_sched_yield
1314 .llong .sys_sched_get_priority_max
1315 .llong .sys_sched_get_priority_min /* 160 */
1316 .llong .sys_sched_rr_get_interval
1317 .llong .sys_nanosleep
1318 .llong .sys_mremap
1319 .llong .sys_setresuid
1320 .llong .sys_getresuid /* 165 */
1321 .llong .sys_ni_syscall /* old query_module syscall */
1322 .llong .sys_poll
1323 .llong .sys_nfsservctl
1324 .llong .sys_setresgid
1325 .llong .sys_getresgid /* 170 */
1326 .llong .sys_prctl
1327 .llong .ppc64_rt_sigreturn
1328 .llong .sys_rt_sigaction
1329 .llong .sys_rt_sigprocmask
1330 .llong .sys_rt_sigpending /* 175 */
1331 .llong .sys_rt_sigtimedwait
1332 .llong .sys_rt_sigqueueinfo
1333 .llong .ppc64_rt_sigsuspend
1334 .llong .sys_pread64
1335 .llong .sys_pwrite64 /* 180 */
1336 .llong .sys_chown
1337 .llong .sys_getcwd
1338 .llong .sys_capget
1339 .llong .sys_capset
1340 .llong .sys_sigaltstack /* 185 */
1341 .llong .sys_sendfile64
1342 .llong .sys_ni_syscall /* reserved for streams1 */
1343 .llong .sys_ni_syscall /* reserved for streams2 */
1344 .llong .ppc_vfork
1345 .llong .sys_getrlimit /* 190 */
1346 .llong .sys_readahead
1347 .llong .sys_ni_syscall /* 32bit only mmap2 */
1348 .llong .sys_ni_syscall /* 32bit only truncate64 */
1349 .llong .sys_ni_syscall /* 32bit only ftruncate64 */
1350 .llong .sys_ni_syscall /* 195 - 32bit only stat64 */
1351 .llong .sys_ni_syscall /* 32bit only lstat64 */
1352 .llong .sys_ni_syscall /* 32bit only fstat64 */
1353 .llong .sys_pciconfig_read
1354 .llong .sys_pciconfig_write
1355 .llong .sys_pciconfig_iobase /* 200 - pciconfig_iobase */
1356 .llong .sys_ni_syscall /* reserved for MacOnLinux */
1357 .llong .sys_getdents64
1358 .llong .sys_pivot_root
1359 .llong .sys_ni_syscall /* 32bit only fcntl64 */
1360 .llong .sys_madvise /* 205 */
1361 .llong .sys_mincore
1362 .llong .sys_gettid
1363 .llong .sys_tkill
1364 .llong .sys_setxattr
1365 .llong .sys_lsetxattr /* 210 */
1366 .llong .sys_fsetxattr
1367 .llong .sys_getxattr
1368 .llong .sys_lgetxattr
1369 .llong .sys_fgetxattr
1370 .llong .sys_listxattr /* 215 */
1371 .llong .sys_llistxattr
1372 .llong .sys_flistxattr
1373 .llong .sys_removexattr
1374 .llong .sys_lremovexattr
1375 .llong .sys_fremovexattr /* 220 */
1376 .llong .sys_futex
1377 .llong .sys_sched_setaffinity
1378 .llong .sys_sched_getaffinity
1379 .llong .sys_ni_syscall
1380 .llong .sys_ni_syscall /* 225 - reserved for tux */
1381 .llong .sys_ni_syscall /* 32bit only sendfile64 */
1382 .llong .sys_io_setup
1383 .llong .sys_io_destroy
1384 .llong .sys_io_getevents
1385 .llong .sys_io_submit /* 230 */
1386 .llong .sys_io_cancel
1387 .llong .sys_set_tid_address
1388 .llong .sys_fadvise64
1389 .llong .sys_exit_group
1390 .llong .sys_lookup_dcookie /* 235 */
1391 .llong .sys_epoll_create
1392 .llong .sys_epoll_ctl
1393 .llong .sys_epoll_wait
1394 .llong .sys_remap_file_pages
1395 .llong .sys_timer_create /* 240 */
1396 .llong .sys_timer_settime
1397 .llong .sys_timer_gettime
1398 .llong .sys_timer_getoverrun
1399 .llong .sys_timer_delete
1400 .llong .sys_clock_settime /* 245 */
1401 .llong .sys_clock_gettime
1402 .llong .sys_clock_getres
1403 .llong .sys_clock_nanosleep
1404 .llong .ppc64_swapcontext
1405 .llong .sys_tgkill /* 250 */
1406 .llong .sys_utimes
1407 .llong .sys_statfs64
1408 .llong .sys_fstatfs64
1409 .llong .sys_ni_syscall /* 32bit only fadvise64_64 */
1410 .llong .ppc_rtas /* 255 */
1411 .llong .sys_ni_syscall /* 256 reserved for sys_debug_setcontext */
1412 .llong .sys_ni_syscall /* 257 reserved for vserver */
1413 .llong .sys_ni_syscall /* 258 reserved for new sys_remap_file_pages */
1414 .llong .sys_mbind
1415 .llong .sys_get_mempolicy /* 260 */
1416 .llong .sys_set_mempolicy
1417 .llong .sys_mq_open
1418 .llong .sys_mq_unlink
1419 .llong .sys_mq_timedsend
1420 .llong .sys_mq_timedreceive /* 265 */
1421 .llong .sys_mq_notify
1422 .llong .sys_mq_getsetattr
1423 .llong .sys_kexec_load
1424 .llong .sys_add_key
1425 .llong .sys_request_key /* 270 */
1426 .llong .sys_keyctl
1427 .llong .sys_waitid
1428 .llong .sys_ioprio_set
1429 .llong .sys_ioprio_get
1430 .llong .sys_inotify_init /* 275 */
1431 .llong .sys_inotify_add_watch
1432 .llong .sys_inotify_rm_watch
diff --git a/arch/ppc64/lib/Makefile b/arch/ppc64/lib/Makefile
index 0b6e967de948..42d5295bf345 100644
--- a/arch/ppc64/lib/Makefile
+++ b/arch/ppc64/lib/Makefile
@@ -2,17 +2,4 @@
2# Makefile for ppc64-specific library files.. 2# Makefile for ppc64-specific library files..
3# 3#
4 4
5lib-y := checksum.o string.o strcase.o 5lib-y := string.o
6lib-y += copypage.o memcpy.o copyuser.o usercopy.o
7
8# Lock primitives are defined as no-ops in include/linux/spinlock.h
9# for non-SMP configs. Don't build the real versions.
10
11lib-$(CONFIG_SMP) += locks.o
12
13# e2a provides EBCDIC to ASCII conversions.
14ifdef CONFIG_PPC_ISERIES
15obj-y += e2a.o
16endif
17
18lib-$(CONFIG_DEBUG_KERNEL) += sstep.o
diff --git a/arch/ppc64/lib/checksum.S b/arch/ppc64/lib/checksum.S
deleted file mode 100644
index ef96c6c58efc..000000000000
--- a/arch/ppc64/lib/checksum.S
+++ /dev/null
@@ -1,229 +0,0 @@
1/*
2 * This file contains assembly-language implementations
3 * of IP-style 1's complement checksum routines.
4 *
5 * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version
10 * 2 of the License, or (at your option) any later version.
11 *
12 * Severely hacked about by Paul Mackerras (paulus@cs.anu.edu.au).
13 */
14
15#include <linux/sys.h>
16#include <asm/processor.h>
17#include <asm/errno.h>
18#include <asm/ppc_asm.h>
19
20/*
21 * ip_fast_csum(r3=buf, r4=len) -- Optimized for IP header
22 * len is in words and is always >= 5.
23 *
24 * In practice len == 5, but this is not guaranteed. So this code does not
25 * attempt to use doubleword instructions.
26 */
27_GLOBAL(ip_fast_csum)
28 lwz r0,0(r3)
29 lwzu r5,4(r3)
30 addic. r4,r4,-2
31 addc r0,r0,r5
32 mtctr r4
33 blelr-
341: lwzu r4,4(r3)
35 adde r0,r0,r4
36 bdnz 1b
37 addze r0,r0 /* add in final carry */
38 rldicl r4,r0,32,0 /* fold two 32-bit halves together */
39 add r0,r0,r4
40 srdi r0,r0,32
41 rlwinm r3,r0,16,0,31 /* fold two halves together */
42 add r3,r0,r3
43 not r3,r3
44 srwi r3,r3,16
45 blr
46
47/*
48 * Compute checksum of TCP or UDP pseudo-header:
49 * csum_tcpudp_magic(r3=saddr, r4=daddr, r5=len, r6=proto, r7=sum)
50 * No real gain trying to do this specially for 64 bit, but
51 * the 32 bit addition may spill into the upper bits of
52 * the doubleword so we still must fold it down from 64.
53 */
54_GLOBAL(csum_tcpudp_magic)
55 rlwimi r5,r6,16,0,15 /* put proto in upper half of len */
56 addc r0,r3,r4 /* add 4 32-bit words together */
57 adde r0,r0,r5
58 adde r0,r0,r7
59 rldicl r4,r0,32,0 /* fold 64 bit value */
60 add r0,r4,r0
61 srdi r0,r0,32
62 rlwinm r3,r0,16,0,31 /* fold two halves together */
63 add r3,r0,r3
64 not r3,r3
65 srwi r3,r3,16
66 blr
67
68/*
69 * Computes the checksum of a memory block at buff, length len,
70 * and adds in "sum" (32-bit).
71 *
72 * This code assumes at least halfword alignment, though the length
73 * can be any number of bytes. The sum is accumulated in r5.
74 *
75 * csum_partial(r3=buff, r4=len, r5=sum)
76 */
77_GLOBAL(csum_partial)
78 subi r3,r3,8 /* we'll offset by 8 for the loads */
79 srdi. r6,r4,3 /* divide by 8 for doubleword count */
80 addic r5,r5,0 /* clear carry */
81 beq 3f /* if we're doing < 8 bytes */
82 andi. r0,r3,2 /* aligned on a word boundary already? */
83 beq+ 1f
84 lhz r6,8(r3) /* do 2 bytes to get aligned */
85 addi r3,r3,2
86 subi r4,r4,2
87 addc r5,r5,r6
88 srdi. r6,r4,3 /* recompute number of doublewords */
89 beq 3f /* any left? */
901: mtctr r6
912: ldu r6,8(r3) /* main sum loop */
92 adde r5,r5,r6
93 bdnz 2b
94 andi. r4,r4,7 /* compute bytes left to sum after doublewords */
953: cmpwi 0,r4,4 /* is at least a full word left? */
96 blt 4f
97 lwz r6,8(r3) /* sum this word */
98 addi r3,r3,4
99 subi r4,r4,4
100 adde r5,r5,r6
1014: cmpwi 0,r4,2 /* is at least a halfword left? */
102 blt+ 5f
103 lhz r6,8(r3) /* sum this halfword */
104 addi r3,r3,2
105 subi r4,r4,2
106 adde r5,r5,r6
1075: cmpwi 0,r4,1 /* is at least a byte left? */
108 bne+ 6f
109 lbz r6,8(r3) /* sum this byte */
110 slwi r6,r6,8 /* this byte is assumed to be the upper byte of a halfword */
111 adde r5,r5,r6
1126: addze r5,r5 /* add in final carry */
113 rldicl r4,r5,32,0 /* fold two 32-bit halves together */
114 add r3,r4,r5
115 srdi r3,r3,32
116 blr
117
118/*
119 * Computes the checksum of a memory block at src, length len,
120 * and adds in "sum" (32-bit), while copying the block to dst.
121 * If an access exception occurs on src or dst, it stores -EFAULT
122 * to *src_err or *dst_err respectively, and (for an error on
123 * src) zeroes the rest of dst.
124 *
125 * This code needs to be reworked to take advantage of 64 bit sum+copy.
126 * However, due to tokenring halfword alignment problems this will be very
127 * tricky. For now we'll leave it until we instrument it somehow.
128 *
129 * csum_partial_copy_generic(r3=src, r4=dst, r5=len, r6=sum, r7=src_err, r8=dst_err)
130 */
131_GLOBAL(csum_partial_copy_generic)
132 addic r0,r6,0
133 subi r3,r3,4
134 subi r4,r4,4
135 srwi. r6,r5,2
136 beq 3f /* if we're doing < 4 bytes */
137 andi. r9,r4,2 /* Align dst to longword boundary */
138 beq+ 1f
13981: lhz r6,4(r3) /* do 2 bytes to get aligned */
140 addi r3,r3,2
141 subi r5,r5,2
14291: sth r6,4(r4)
143 addi r4,r4,2
144 addc r0,r0,r6
145 srwi. r6,r5,2 /* # words to do */
146 beq 3f
1471: mtctr r6
14882: lwzu r6,4(r3) /* the bdnz has zero overhead, so it should */
14992: stwu r6,4(r4) /* be unnecessary to unroll this loop */
150 adde r0,r0,r6
151 bdnz 82b
152 andi. r5,r5,3
1533: cmpwi 0,r5,2
154 blt+ 4f
15583: lhz r6,4(r3)
156 addi r3,r3,2
157 subi r5,r5,2
15893: sth r6,4(r4)
159 addi r4,r4,2
160 adde r0,r0,r6
1614: cmpwi 0,r5,1
162 bne+ 5f
16384: lbz r6,4(r3)
16494: stb r6,4(r4)
165 slwi r6,r6,8 /* Upper byte of word */
166 adde r0,r0,r6
1675: addze r3,r0 /* add in final carry (unlikely with 64-bit regs) */
168 rldicl r4,r3,32,0 /* fold 64 bit value */
169 add r3,r4,r3
170 srdi r3,r3,32
171 blr
172
173/* These shouldn't go in the fixup section, since that would
174 cause the ex_table addresses to get out of order. */
175
176 .globl src_error_1
177src_error_1:
178 li r6,0
179 subi r5,r5,2
18095: sth r6,4(r4)
181 addi r4,r4,2
182 srwi. r6,r5,2
183 beq 3f
184 mtctr r6
185 .globl src_error_2
186src_error_2:
187 li r6,0
18896: stwu r6,4(r4)
189 bdnz 96b
1903: andi. r5,r5,3
191 beq src_error
192 .globl src_error_3
193src_error_3:
194 li r6,0
195 mtctr r5
196 addi r4,r4,3
19797: stbu r6,1(r4)
198 bdnz 97b
199 .globl src_error
200src_error:
201 cmpdi 0,r7,0
202 beq 1f
203 li r6,-EFAULT
204 stw r6,0(r7)
2051: addze r3,r0
206 blr
207
208 .globl dst_error
209dst_error:
210 cmpdi 0,r8,0
211 beq 1f
212 li r6,-EFAULT
213 stw r6,0(r8)
2141: addze r3,r0
215 blr
216
217.section __ex_table,"a"
218 .align 3
219 .llong 81b,src_error_1
220 .llong 91b,dst_error
221 .llong 82b,src_error_2
222 .llong 92b,dst_error
223 .llong 83b,src_error_3
224 .llong 93b,dst_error
225 .llong 84b,src_error_3
226 .llong 94b,dst_error
227 .llong 95b,dst_error
228 .llong 96b,dst_error
229 .llong 97b,dst_error
diff --git a/arch/ppc64/lib/copypage.S b/arch/ppc64/lib/copypage.S
deleted file mode 100644
index 733d61618bbf..000000000000
--- a/arch/ppc64/lib/copypage.S
+++ /dev/null
@@ -1,121 +0,0 @@
1/*
2 * arch/ppc64/lib/copypage.S
3 *
4 * Copyright (C) 2002 Paul Mackerras, IBM Corp.
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 */
11#include <asm/processor.h>
12#include <asm/ppc_asm.h>
13
14_GLOBAL(copy_page)
15 std r31,-8(1)
16 std r30,-16(1)
17 std r29,-24(1)
18 std r28,-32(1)
19 std r27,-40(1)
20 std r26,-48(1)
21 std r25,-56(1)
22 std r24,-64(1)
23 std r23,-72(1)
24 std r22,-80(1)
25 std r21,-88(1)
26 std r20,-96(1)
27 li r5,4096/32 - 1
28 addi r3,r3,-8
29 li r12,5
300: addi r5,r5,-24
31 mtctr r12
32 ld r22,640(4)
33 ld r21,512(4)
34 ld r20,384(4)
35 ld r11,256(4)
36 ld r9,128(4)
37 ld r7,0(4)
38 ld r25,648(4)
39 ld r24,520(4)
40 ld r23,392(4)
41 ld r10,264(4)
42 ld r8,136(4)
43 ldu r6,8(4)
44 cmpwi r5,24
451: std r22,648(3)
46 std r21,520(3)
47 std r20,392(3)
48 std r11,264(3)
49 std r9,136(3)
50 std r7,8(3)
51 ld r28,648(4)
52 ld r27,520(4)
53 ld r26,392(4)
54 ld r31,264(4)
55 ld r30,136(4)
56 ld r29,8(4)
57 std r25,656(3)
58 std r24,528(3)
59 std r23,400(3)
60 std r10,272(3)
61 std r8,144(3)
62 std r6,16(3)
63 ld r22,656(4)
64 ld r21,528(4)
65 ld r20,400(4)
66 ld r11,272(4)
67 ld r9,144(4)
68 ld r7,16(4)
69 std r28,664(3)
70 std r27,536(3)
71 std r26,408(3)
72 std r31,280(3)
73 std r30,152(3)
74 stdu r29,24(3)
75 ld r25,664(4)
76 ld r24,536(4)
77 ld r23,408(4)
78 ld r10,280(4)
79 ld r8,152(4)
80 ldu r6,24(4)
81 bdnz 1b
82 std r22,648(3)
83 std r21,520(3)
84 std r20,392(3)
85 std r11,264(3)
86 std r9,136(3)
87 std r7,8(3)
88 addi r4,r4,640
89 addi r3,r3,648
90 bge 0b
91 mtctr r5
92 ld r7,0(4)
93 ld r8,8(4)
94 ldu r9,16(4)
953: ld r10,8(4)
96 std r7,8(3)
97 ld r7,16(4)
98 std r8,16(3)
99 ld r8,24(4)
100 std r9,24(3)
101 ldu r9,32(4)
102 stdu r10,32(3)
103 bdnz 3b
1044: ld r10,8(4)
105 std r7,8(3)
106 std r8,16(3)
107 std r9,24(3)
108 std r10,32(3)
1099: ld r20,-96(1)
110 ld r21,-88(1)
111 ld r22,-80(1)
112 ld r23,-72(1)
113 ld r24,-64(1)
114 ld r25,-56(1)
115 ld r26,-48(1)
116 ld r27,-40(1)
117 ld r28,-32(1)
118 ld r29,-24(1)
119 ld r30,-16(1)
120 ld r31,-8(1)
121 blr
diff --git a/arch/ppc64/lib/copyuser.S b/arch/ppc64/lib/copyuser.S
deleted file mode 100644
index a0b3fbbd6fb1..000000000000
--- a/arch/ppc64/lib/copyuser.S
+++ /dev/null
@@ -1,576 +0,0 @@
1/*
2 * arch/ppc64/lib/copyuser.S
3 *
4 * Copyright (C) 2002 Paul Mackerras, IBM Corp.
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 */
11#include <asm/processor.h>
12#include <asm/ppc_asm.h>
13
14 .align 7
15_GLOBAL(__copy_tofrom_user)
16 /* first check for a whole page copy on a page boundary */
17 cmpldi cr1,r5,16
18 cmpdi cr6,r5,4096
19 or r0,r3,r4
20 neg r6,r3 /* LS 3 bits = # bytes to 8-byte dest bdry */
21 andi. r0,r0,4095
22 std r3,-24(r1)
23 crand cr0*4+2,cr0*4+2,cr6*4+2
24 std r4,-16(r1)
25 std r5,-8(r1)
26 dcbt 0,r4
27 beq .Lcopy_page
28 andi. r6,r6,7
29 mtcrf 0x01,r5
30 blt cr1,.Lshort_copy
31 bne .Ldst_unaligned
32.Ldst_aligned:
33 andi. r0,r4,7
34 addi r3,r3,-16
35 bne .Lsrc_unaligned
36 srdi r7,r5,4
3720: ld r9,0(r4)
38 addi r4,r4,-8
39 mtctr r7
40 andi. r5,r5,7
41 bf cr7*4+0,22f
42 addi r3,r3,8
43 addi r4,r4,8
44 mr r8,r9
45 blt cr1,72f
4621: ld r9,8(r4)
4770: std r8,8(r3)
4822: ldu r8,16(r4)
4971: stdu r9,16(r3)
50 bdnz 21b
5172: std r8,8(r3)
52 beq+ 3f
53 addi r3,r3,16
5423: ld r9,8(r4)
55.Ldo_tail:
56 bf cr7*4+1,1f
57 rotldi r9,r9,32
5873: stw r9,0(r3)
59 addi r3,r3,4
601: bf cr7*4+2,2f
61 rotldi r9,r9,16
6274: sth r9,0(r3)
63 addi r3,r3,2
642: bf cr7*4+3,3f
65 rotldi r9,r9,8
6675: stb r9,0(r3)
673: li r3,0
68 blr
69
70.Lsrc_unaligned:
71 srdi r6,r5,3
72 addi r5,r5,-16
73 subf r4,r0,r4
74 srdi r7,r5,4
75 sldi r10,r0,3
76 cmpldi cr6,r6,3
77 andi. r5,r5,7
78 mtctr r7
79 subfic r11,r10,64
80 add r5,r5,r0
81 bt cr7*4+0,28f
82
8324: ld r9,0(r4) /* 3+2n loads, 2+2n stores */
8425: ld r0,8(r4)
85 sld r6,r9,r10
8626: ldu r9,16(r4)
87 srd r7,r0,r11
88 sld r8,r0,r10
89 or r7,r7,r6
90 blt cr6,79f
9127: ld r0,8(r4)
92 b 2f
93
9428: ld r0,0(r4) /* 4+2n loads, 3+2n stores */
9529: ldu r9,8(r4)
96 sld r8,r0,r10
97 addi r3,r3,-8
98 blt cr6,5f
9930: ld r0,8(r4)
100 srd r12,r9,r11
101 sld r6,r9,r10
10231: ldu r9,16(r4)
103 or r12,r8,r12
104 srd r7,r0,r11
105 sld r8,r0,r10
106 addi r3,r3,16
107 beq cr6,78f
108
1091: or r7,r7,r6
11032: ld r0,8(r4)
11176: std r12,8(r3)
1122: srd r12,r9,r11
113 sld r6,r9,r10
11433: ldu r9,16(r4)
115 or r12,r8,r12
11677: stdu r7,16(r3)
117 srd r7,r0,r11
118 sld r8,r0,r10
119 bdnz 1b
120
12178: std r12,8(r3)
122 or r7,r7,r6
12379: std r7,16(r3)
1245: srd r12,r9,r11
125 or r12,r8,r12
12680: std r12,24(r3)
127 bne 6f
128 li r3,0
129 blr
1306: cmpwi cr1,r5,8
131 addi r3,r3,32
132 sld r9,r9,r10
133 ble cr1,.Ldo_tail
13434: ld r0,8(r4)
135 srd r7,r0,r11
136 or r9,r7,r9
137 b .Ldo_tail
138
139.Ldst_unaligned:
140 mtcrf 0x01,r6 /* put #bytes to 8B bdry into cr7 */
141 subf r5,r6,r5
142 li r7,0
143 cmpldi r1,r5,16
144 bf cr7*4+3,1f
14535: lbz r0,0(r4)
14681: stb r0,0(r3)
147 addi r7,r7,1
1481: bf cr7*4+2,2f
14936: lhzx r0,r7,r4
15082: sthx r0,r7,r3
151 addi r7,r7,2
1522: bf cr7*4+1,3f
15337: lwzx r0,r7,r4
15483: stwx r0,r7,r3
1553: mtcrf 0x01,r5
156 add r4,r6,r4
157 add r3,r6,r3
158 b .Ldst_aligned
159
160.Lshort_copy:
161 bf cr7*4+0,1f
16238: lwz r0,0(r4)
16339: lwz r9,4(r4)
164 addi r4,r4,8
16584: stw r0,0(r3)
16685: stw r9,4(r3)
167 addi r3,r3,8
1681: bf cr7*4+1,2f
16940: lwz r0,0(r4)
170 addi r4,r4,4
17186: stw r0,0(r3)
172 addi r3,r3,4
1732: bf cr7*4+2,3f
17441: lhz r0,0(r4)
175 addi r4,r4,2
17687: sth r0,0(r3)
177 addi r3,r3,2
1783: bf cr7*4+3,4f
17942: lbz r0,0(r4)
18088: stb r0,0(r3)
1814: li r3,0
182 blr
183
184/*
185 * exception handlers follow
186 * we have to return the number of bytes not copied
187 * for an exception on a load, we set the rest of the destination to 0
188 */
189
190136:
191137:
192 add r3,r3,r7
193 b 1f
194130:
195131:
196 addi r3,r3,8
197120:
198122:
199124:
200125:
201126:
202127:
203128:
204129:
205133:
206 addi r3,r3,8
207121:
208132:
209 addi r3,r3,8
210123:
211134:
212135:
213138:
214139:
215140:
216141:
217142:
218
219/*
220 * here we have had a fault on a load and r3 points to the first
221 * unmodified byte of the destination
222 */
2231: ld r6,-24(r1)
224 ld r4,-16(r1)
225 ld r5,-8(r1)
226 subf r6,r6,r3
227 add r4,r4,r6
228 subf r5,r6,r5 /* #bytes left to go */
229
230/*
231 * first see if we can copy any more bytes before hitting another exception
232 */
233 mtctr r5
23443: lbz r0,0(r4)
235 addi r4,r4,1
23689: stb r0,0(r3)
237 addi r3,r3,1
238 bdnz 43b
239 li r3,0 /* huh? all copied successfully this time? */
240 blr
241
242/*
243 * here we have trapped again, need to clear ctr bytes starting at r3
244 */
245143: mfctr r5
246 li r0,0
247 mr r4,r3
248 mr r3,r5 /* return the number of bytes not copied */
2491: andi. r9,r4,7
250 beq 3f
25190: stb r0,0(r4)
252 addic. r5,r5,-1
253 addi r4,r4,1
254 bne 1b
255 blr
2563: cmpldi cr1,r5,8
257 srdi r9,r5,3
258 andi. r5,r5,7
259 blt cr1,93f
260 mtctr r9
26191: std r0,0(r4)
262 addi r4,r4,8
263 bdnz 91b
26493: beqlr
265 mtctr r5
26692: stb r0,0(r4)
267 addi r4,r4,1
268 bdnz 92b
269 blr
270
271/*
272 * exception handlers for stores: we just need to work
273 * out how many bytes weren't copied
274 */
275182:
276183:
277 add r3,r3,r7
278 b 1f
279180:
280 addi r3,r3,8
281171:
282177:
283 addi r3,r3,8
284170:
285172:
286176:
287178:
288 addi r3,r3,4
289185:
290 addi r3,r3,4
291173:
292174:
293175:
294179:
295181:
296184:
297186:
298187:
299188:
300189:
3011:
302 ld r6,-24(r1)
303 ld r5,-8(r1)
304 add r6,r6,r5
305 subf r3,r3,r6 /* #bytes not copied */
306190:
307191:
308192:
309 blr /* #bytes not copied in r3 */
310
311 .section __ex_table,"a"
312 .align 3
313 .llong 20b,120b
314 .llong 21b,121b
315 .llong 70b,170b
316 .llong 22b,122b
317 .llong 71b,171b
318 .llong 72b,172b
319 .llong 23b,123b
320 .llong 73b,173b
321 .llong 74b,174b
322 .llong 75b,175b
323 .llong 24b,124b
324 .llong 25b,125b
325 .llong 26b,126b
326 .llong 27b,127b
327 .llong 28b,128b
328 .llong 29b,129b
329 .llong 30b,130b
330 .llong 31b,131b
331 .llong 32b,132b
332 .llong 76b,176b
333 .llong 33b,133b
334 .llong 77b,177b
335 .llong 78b,178b
336 .llong 79b,179b
337 .llong 80b,180b
338 .llong 34b,134b
339 .llong 35b,135b
340 .llong 81b,181b
341 .llong 36b,136b
342 .llong 82b,182b
343 .llong 37b,137b
344 .llong 83b,183b
345 .llong 38b,138b
346 .llong 39b,139b
347 .llong 84b,184b
348 .llong 85b,185b
349 .llong 40b,140b
350 .llong 86b,186b
351 .llong 41b,141b
352 .llong 87b,187b
353 .llong 42b,142b
354 .llong 88b,188b
355 .llong 43b,143b
356 .llong 89b,189b
357 .llong 90b,190b
358 .llong 91b,191b
359 .llong 92b,192b
360
361 .text
362
363/*
364 * Routine to copy a whole page of data, optimized for POWER4.
365 * On POWER4 it is more than 50% faster than the simple loop
366 * above (following the .Ldst_aligned label) but it runs slightly
367 * slower on POWER3.
368 */
369.Lcopy_page:
370 std r31,-32(1)
371 std r30,-40(1)
372 std r29,-48(1)
373 std r28,-56(1)
374 std r27,-64(1)
375 std r26,-72(1)
376 std r25,-80(1)
377 std r24,-88(1)
378 std r23,-96(1)
379 std r22,-104(1)
380 std r21,-112(1)
381 std r20,-120(1)
382 li r5,4096/32 - 1
383 addi r3,r3,-8
384 li r0,5
3850: addi r5,r5,-24
386 mtctr r0
38720: ld r22,640(4)
38821: ld r21,512(4)
38922: ld r20,384(4)
39023: ld r11,256(4)
39124: ld r9,128(4)
39225: ld r7,0(4)
39326: ld r25,648(4)
39427: ld r24,520(4)
39528: ld r23,392(4)
39629: ld r10,264(4)
39730: ld r8,136(4)
39831: ldu r6,8(4)
399 cmpwi r5,24
4001:
40132: std r22,648(3)
40233: std r21,520(3)
40334: std r20,392(3)
40435: std r11,264(3)
40536: std r9,136(3)
40637: std r7,8(3)
40738: ld r28,648(4)
40839: ld r27,520(4)
40940: ld r26,392(4)
41041: ld r31,264(4)
41142: ld r30,136(4)
41243: ld r29,8(4)
41344: std r25,656(3)
41445: std r24,528(3)
41546: std r23,400(3)
41647: std r10,272(3)
41748: std r8,144(3)
41849: std r6,16(3)
41950: ld r22,656(4)
42051: ld r21,528(4)
42152: ld r20,400(4)
42253: ld r11,272(4)
42354: ld r9,144(4)
42455: ld r7,16(4)
42556: std r28,664(3)
42657: std r27,536(3)
42758: std r26,408(3)
42859: std r31,280(3)
42960: std r30,152(3)
43061: stdu r29,24(3)
43162: ld r25,664(4)
43263: ld r24,536(4)
43364: ld r23,408(4)
43465: ld r10,280(4)
43566: ld r8,152(4)
43667: ldu r6,24(4)
437 bdnz 1b
43868: std r22,648(3)
43969: std r21,520(3)
44070: std r20,392(3)
44171: std r11,264(3)
44272: std r9,136(3)
44373: std r7,8(3)
44474: addi r4,r4,640
44575: addi r3,r3,648
446 bge 0b
447 mtctr r5
44876: ld r7,0(4)
44977: ld r8,8(4)
45078: ldu r9,16(4)
4513:
45279: ld r10,8(4)
45380: std r7,8(3)
45481: ld r7,16(4)
45582: std r8,16(3)
45683: ld r8,24(4)
45784: std r9,24(3)
45885: ldu r9,32(4)
45986: stdu r10,32(3)
460 bdnz 3b
4614:
46287: ld r10,8(4)
46388: std r7,8(3)
46489: std r8,16(3)
46590: std r9,24(3)
46691: std r10,32(3)
4679: ld r20,-120(1)
468 ld r21,-112(1)
469 ld r22,-104(1)
470 ld r23,-96(1)
471 ld r24,-88(1)
472 ld r25,-80(1)
473 ld r26,-72(1)
474 ld r27,-64(1)
475 ld r28,-56(1)
476 ld r29,-48(1)
477 ld r30,-40(1)
478 ld r31,-32(1)
479 li r3,0
480 blr
481
482/*
483 * on an exception, reset to the beginning and jump back into the
484 * standard __copy_tofrom_user
485 */
486100: ld r20,-120(1)
487 ld r21,-112(1)
488 ld r22,-104(1)
489 ld r23,-96(1)
490 ld r24,-88(1)
491 ld r25,-80(1)
492 ld r26,-72(1)
493 ld r27,-64(1)
494 ld r28,-56(1)
495 ld r29,-48(1)
496 ld r30,-40(1)
497 ld r31,-32(1)
498 ld r3,-24(r1)
499 ld r4,-16(r1)
500 li r5,4096
501 b .Ldst_aligned
502
503 .section __ex_table,"a"
504 .align 3
505 .llong 20b,100b
506 .llong 21b,100b
507 .llong 22b,100b
508 .llong 23b,100b
509 .llong 24b,100b
510 .llong 25b,100b
511 .llong 26b,100b
512 .llong 27b,100b
513 .llong 28b,100b
514 .llong 29b,100b
515 .llong 30b,100b
516 .llong 31b,100b
517 .llong 32b,100b
518 .llong 33b,100b
519 .llong 34b,100b
520 .llong 35b,100b
521 .llong 36b,100b
522 .llong 37b,100b
523 .llong 38b,100b
524 .llong 39b,100b
525 .llong 40b,100b
526 .llong 41b,100b
527 .llong 42b,100b
528 .llong 43b,100b
529 .llong 44b,100b
530 .llong 45b,100b
531 .llong 46b,100b
532 .llong 47b,100b
533 .llong 48b,100b
534 .llong 49b,100b
535 .llong 50b,100b
536 .llong 51b,100b
537 .llong 52b,100b
538 .llong 53b,100b
539 .llong 54b,100b
540 .llong 55b,100b
541 .llong 56b,100b
542 .llong 57b,100b
543 .llong 58b,100b
544 .llong 59b,100b
545 .llong 60b,100b
546 .llong 61b,100b
547 .llong 62b,100b
548 .llong 63b,100b
549 .llong 64b,100b
550 .llong 65b,100b
551 .llong 66b,100b
552 .llong 67b,100b
553 .llong 68b,100b
554 .llong 69b,100b
555 .llong 70b,100b
556 .llong 71b,100b
557 .llong 72b,100b
558 .llong 73b,100b
559 .llong 74b,100b
560 .llong 75b,100b
561 .llong 76b,100b
562 .llong 77b,100b
563 .llong 78b,100b
564 .llong 79b,100b
565 .llong 80b,100b
566 .llong 81b,100b
567 .llong 82b,100b
568 .llong 83b,100b
569 .llong 84b,100b
570 .llong 85b,100b
571 .llong 86b,100b
572 .llong 87b,100b
573 .llong 88b,100b
574 .llong 89b,100b
575 .llong 90b,100b
576 .llong 91b,100b
diff --git a/arch/ppc64/lib/e2a.c b/arch/ppc64/lib/e2a.c
deleted file mode 100644
index d2b834887920..000000000000
--- a/arch/ppc64/lib/e2a.c
+++ /dev/null
@@ -1,108 +0,0 @@
1/*
2 * arch/ppc64/lib/e2a.c
3 *
4 * EBCDIC to ASCII conversion
5 *
6 * This function moved here from arch/ppc64/kernel/viopath.c
7 *
8 * (C) Copyright 2000-2004 IBM Corporation
9 *
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License as
12 * published by the Free Software Foundation; either version 2 of the
13 * License, or (at your option) anyu later version.
14 *
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software Foundation,
22 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 *
24 */
25
26#include <linux/module.h>
27
28unsigned char e2a(unsigned char x)
29{
30 switch (x) {
31 case 0xF0:
32 return '0';
33 case 0xF1:
34 return '1';
35 case 0xF2:
36 return '2';
37 case 0xF3:
38 return '3';
39 case 0xF4:
40 return '4';
41 case 0xF5:
42 return '5';
43 case 0xF6:
44 return '6';
45 case 0xF7:
46 return '7';
47 case 0xF8:
48 return '8';
49 case 0xF9:
50 return '9';
51 case 0xC1:
52 return 'A';
53 case 0xC2:
54 return 'B';
55 case 0xC3:
56 return 'C';
57 case 0xC4:
58 return 'D';
59 case 0xC5:
60 return 'E';
61 case 0xC6:
62 return 'F';
63 case 0xC7:
64 return 'G';
65 case 0xC8:
66 return 'H';
67 case 0xC9:
68 return 'I';
69 case 0xD1:
70 return 'J';
71 case 0xD2:
72 return 'K';
73 case 0xD3:
74 return 'L';
75 case 0xD4:
76 return 'M';
77 case 0xD5:
78 return 'N';
79 case 0xD6:
80 return 'O';
81 case 0xD7:
82 return 'P';
83 case 0xD8:
84 return 'Q';
85 case 0xD9:
86 return 'R';
87 case 0xE2:
88 return 'S';
89 case 0xE3:
90 return 'T';
91 case 0xE4:
92 return 'U';
93 case 0xE5:
94 return 'V';
95 case 0xE6:
96 return 'W';
97 case 0xE7:
98 return 'X';
99 case 0xE8:
100 return 'Y';
101 case 0xE9:
102 return 'Z';
103 }
104 return ' ';
105}
106EXPORT_SYMBOL(e2a);
107
108
diff --git a/arch/ppc64/lib/locks.c b/arch/ppc64/lib/locks.c
deleted file mode 100644
index 033643ab69e0..000000000000
--- a/arch/ppc64/lib/locks.c
+++ /dev/null
@@ -1,95 +0,0 @@
1/*
2 * Spin and read/write lock operations.
3 *
4 * Copyright (C) 2001-2004 Paul Mackerras <paulus@au.ibm.com>, IBM
5 * Copyright (C) 2001 Anton Blanchard <anton@au.ibm.com>, IBM
6 * Copyright (C) 2002 Dave Engebretsen <engebret@us.ibm.com>, IBM
7 * Rework to support virtual processors
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; either version
12 * 2 of the License, or (at your option) any later version.
13 */
14
15#include <linux/config.h>
16#include <linux/kernel.h>
17#include <linux/spinlock.h>
18#include <linux/module.h>
19#include <linux/stringify.h>
20#include <asm/hvcall.h>
21#include <asm/iSeries/HvCall.h>
22
23/* waiting for a spinlock... */
24#if defined(CONFIG_PPC_SPLPAR) || defined(CONFIG_PPC_ISERIES)
25
26void __spin_yield(raw_spinlock_t *lock)
27{
28 unsigned int lock_value, holder_cpu, yield_count;
29 struct paca_struct *holder_paca;
30
31 lock_value = lock->slock;
32 if (lock_value == 0)
33 return;
34 holder_cpu = lock_value & 0xffff;
35 BUG_ON(holder_cpu >= NR_CPUS);
36 holder_paca = &paca[holder_cpu];
37 yield_count = holder_paca->lppaca.yield_count;
38 if ((yield_count & 1) == 0)
39 return; /* virtual cpu is currently running */
40 rmb();
41 if (lock->slock != lock_value)
42 return; /* something has changed */
43#ifdef CONFIG_PPC_ISERIES
44 HvCall2(HvCallBaseYieldProcessor, HvCall_YieldToProc,
45 ((u64)holder_cpu << 32) | yield_count);
46#else
47 plpar_hcall_norets(H_CONFER, get_hard_smp_processor_id(holder_cpu),
48 yield_count);
49#endif
50}
51
52/*
53 * Waiting for a read lock or a write lock on a rwlock...
54 * This turns out to be the same for read and write locks, since
55 * we only know the holder if it is write-locked.
56 */
57void __rw_yield(raw_rwlock_t *rw)
58{
59 int lock_value;
60 unsigned int holder_cpu, yield_count;
61 struct paca_struct *holder_paca;
62
63 lock_value = rw->lock;
64 if (lock_value >= 0)
65 return; /* no write lock at present */
66 holder_cpu = lock_value & 0xffff;
67 BUG_ON(holder_cpu >= NR_CPUS);
68 holder_paca = &paca[holder_cpu];
69 yield_count = holder_paca->lppaca.yield_count;
70 if ((yield_count & 1) == 0)
71 return; /* virtual cpu is currently running */
72 rmb();
73 if (rw->lock != lock_value)
74 return; /* something has changed */
75#ifdef CONFIG_PPC_ISERIES
76 HvCall2(HvCallBaseYieldProcessor, HvCall_YieldToProc,
77 ((u64)holder_cpu << 32) | yield_count);
78#else
79 plpar_hcall_norets(H_CONFER, get_hard_smp_processor_id(holder_cpu),
80 yield_count);
81#endif
82}
83#endif
84
85void __raw_spin_unlock_wait(raw_spinlock_t *lock)
86{
87 while (lock->slock) {
88 HMT_low();
89 if (SHARED_PROCESSOR)
90 __spin_yield(lock);
91 }
92 HMT_medium();
93}
94
95EXPORT_SYMBOL(__raw_spin_unlock_wait);
diff --git a/arch/ppc64/lib/memcpy.S b/arch/ppc64/lib/memcpy.S
deleted file mode 100644
index 9ccacdf5bcb9..000000000000
--- a/arch/ppc64/lib/memcpy.S
+++ /dev/null
@@ -1,172 +0,0 @@
1/*
2 * arch/ppc64/lib/memcpy.S
3 *
4 * Copyright (C) 2002 Paul Mackerras, IBM Corp.
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 */
11#include <asm/processor.h>
12#include <asm/ppc_asm.h>
13
14 .align 7
15_GLOBAL(memcpy)
16 mtcrf 0x01,r5
17 cmpldi cr1,r5,16
18 neg r6,r3 # LS 3 bits = # bytes to 8-byte dest bdry
19 andi. r6,r6,7
20 dcbt 0,r4
21 blt cr1,.Lshort_copy
22 bne .Ldst_unaligned
23.Ldst_aligned:
24 andi. r0,r4,7
25 addi r3,r3,-16
26 bne .Lsrc_unaligned
27 srdi r7,r5,4
28 ld r9,0(r4)
29 addi r4,r4,-8
30 mtctr r7
31 andi. r5,r5,7
32 bf cr7*4+0,2f
33 addi r3,r3,8
34 addi r4,r4,8
35 mr r8,r9
36 blt cr1,3f
371: ld r9,8(r4)
38 std r8,8(r3)
392: ldu r8,16(r4)
40 stdu r9,16(r3)
41 bdnz 1b
423: std r8,8(r3)
43 beqlr
44 addi r3,r3,16
45 ld r9,8(r4)
46.Ldo_tail:
47 bf cr7*4+1,1f
48 rotldi r9,r9,32
49 stw r9,0(r3)
50 addi r3,r3,4
511: bf cr7*4+2,2f
52 rotldi r9,r9,16
53 sth r9,0(r3)
54 addi r3,r3,2
552: bf cr7*4+3,3f
56 rotldi r9,r9,8
57 stb r9,0(r3)
583: blr
59
60.Lsrc_unaligned:
61 srdi r6,r5,3
62 addi r5,r5,-16
63 subf r4,r0,r4
64 srdi r7,r5,4
65 sldi r10,r0,3
66 cmpdi cr6,r6,3
67 andi. r5,r5,7
68 mtctr r7
69 subfic r11,r10,64
70 add r5,r5,r0
71
72 bt cr7*4+0,0f
73
74 ld r9,0(r4) # 3+2n loads, 2+2n stores
75 ld r0,8(r4)
76 sld r6,r9,r10
77 ldu r9,16(r4)
78 srd r7,r0,r11
79 sld r8,r0,r10
80 or r7,r7,r6
81 blt cr6,4f
82 ld r0,8(r4)
83 # s1<< in r8, d0=(s0<<|s1>>) in r7, s3 in r0, s2 in r9, nix in r6 & r12
84 b 2f
85
860: ld r0,0(r4) # 4+2n loads, 3+2n stores
87 ldu r9,8(r4)
88 sld r8,r0,r10
89 addi r3,r3,-8
90 blt cr6,5f
91 ld r0,8(r4)
92 srd r12,r9,r11
93 sld r6,r9,r10
94 ldu r9,16(r4)
95 or r12,r8,r12
96 srd r7,r0,r11
97 sld r8,r0,r10
98 addi r3,r3,16
99 beq cr6,3f
100
101 # d0=(s0<<|s1>>) in r12, s1<< in r6, s2>> in r7, s2<< in r8, s3 in r9
1021: or r7,r7,r6
103 ld r0,8(r4)
104 std r12,8(r3)
1052: srd r12,r9,r11
106 sld r6,r9,r10
107 ldu r9,16(r4)
108 or r12,r8,r12
109 stdu r7,16(r3)
110 srd r7,r0,r11
111 sld r8,r0,r10
112 bdnz 1b
113
1143: std r12,8(r3)
115 or r7,r7,r6
1164: std r7,16(r3)
1175: srd r12,r9,r11
118 or r12,r8,r12
119 std r12,24(r3)
120 beqlr
121 cmpwi cr1,r5,8
122 addi r3,r3,32
123 sld r9,r9,r10
124 ble cr1,.Ldo_tail
125 ld r0,8(r4)
126 srd r7,r0,r11
127 or r9,r7,r9
128 b .Ldo_tail
129
130.Ldst_unaligned:
131 mtcrf 0x01,r6 # put #bytes to 8B bdry into cr7
132 subf r5,r6,r5
133 li r7,0
134 cmpldi r1,r5,16
135 bf cr7*4+3,1f
136 lbz r0,0(r4)
137 stb r0,0(r3)
138 addi r7,r7,1
1391: bf cr7*4+2,2f
140 lhzx r0,r7,r4
141 sthx r0,r7,r3
142 addi r7,r7,2
1432: bf cr7*4+1,3f
144 lwzx r0,r7,r4
145 stwx r0,r7,r3
1463: mtcrf 0x01,r5
147 add r4,r6,r4
148 add r3,r6,r3
149 b .Ldst_aligned
150
151.Lshort_copy:
152 bf cr7*4+0,1f
153 lwz r0,0(r4)
154 lwz r9,4(r4)
155 addi r4,r4,8
156 stw r0,0(r3)
157 stw r9,4(r3)
158 addi r3,r3,8
1591: bf cr7*4+1,2f
160 lwz r0,0(r4)
161 addi r4,r4,4
162 stw r0,0(r3)
163 addi r3,r3,4
1642: bf cr7*4+2,3f
165 lhz r0,0(r4)
166 addi r4,r4,2
167 sth r0,0(r3)
168 addi r3,r3,2
1693: bf cr7*4+3,4f
170 lbz r0,0(r4)
171 stb r0,0(r3)
1724: blr
diff --git a/arch/ppc64/lib/sstep.c b/arch/ppc64/lib/sstep.c
deleted file mode 100644
index e79123d1485c..000000000000
--- a/arch/ppc64/lib/sstep.c
+++ /dev/null
@@ -1,141 +0,0 @@
1/*
2 * Single-step support.
3 *
4 * Copyright (C) 2004 Paul Mackerras <paulus@au.ibm.com>, IBM
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 */
11#include <linux/kernel.h>
12#include <linux/ptrace.h>
13#include <asm/sstep.h>
14#include <asm/processor.h>
15
16extern char system_call_common[];
17
18/* Bits in SRR1 that are copied from MSR */
19#define MSR_MASK 0xffffffff87c0ffff
20
21/*
22 * Determine whether a conditional branch instruction would branch.
23 */
24static int branch_taken(unsigned int instr, struct pt_regs *regs)
25{
26 unsigned int bo = (instr >> 21) & 0x1f;
27 unsigned int bi;
28
29 if ((bo & 4) == 0) {
30 /* decrement counter */
31 --regs->ctr;
32 if (((bo >> 1) & 1) ^ (regs->ctr == 0))
33 return 0;
34 }
35 if ((bo & 0x10) == 0) {
36 /* check bit from CR */
37 bi = (instr >> 16) & 0x1f;
38 if (((regs->ccr >> (31 - bi)) & 1) != ((bo >> 3) & 1))
39 return 0;
40 }
41 return 1;
42}
43
44/*
45 * Emulate instructions that cause a transfer of control.
46 * Returns 1 if the step was emulated, 0 if not,
47 * or -1 if the instruction is one that should not be stepped,
48 * such as an rfid, or a mtmsrd that would clear MSR_RI.
49 */
50int emulate_step(struct pt_regs *regs, unsigned int instr)
51{
52 unsigned int opcode, rd;
53 unsigned long int imm;
54
55 opcode = instr >> 26;
56 switch (opcode) {
57 case 16: /* bc */
58 imm = (signed short)(instr & 0xfffc);
59 if ((instr & 2) == 0)
60 imm += regs->nip;
61 regs->nip += 4;
62 if ((regs->msr & MSR_SF) == 0)
63 regs->nip &= 0xffffffffUL;
64 if (instr & 1)
65 regs->link = regs->nip;
66 if (branch_taken(instr, regs))
67 regs->nip = imm;
68 return 1;
69 case 17: /* sc */
70 /*
71 * N.B. this uses knowledge about how the syscall
72 * entry code works. If that is changed, this will
73 * need to be changed also.
74 */
75 regs->gpr[9] = regs->gpr[13];
76 regs->gpr[11] = regs->nip + 4;
77 regs->gpr[12] = regs->msr & MSR_MASK;
78 regs->gpr[13] = (unsigned long) get_paca();
79 regs->nip = (unsigned long) &system_call_common;
80 regs->msr = MSR_KERNEL;
81 return 1;
82 case 18: /* b */
83 imm = instr & 0x03fffffc;
84 if (imm & 0x02000000)
85 imm -= 0x04000000;
86 if ((instr & 2) == 0)
87 imm += regs->nip;
88 if (instr & 1) {
89 regs->link = regs->nip + 4;
90 if ((regs->msr & MSR_SF) == 0)
91 regs->link &= 0xffffffffUL;
92 }
93 if ((regs->msr & MSR_SF) == 0)
94 imm &= 0xffffffffUL;
95 regs->nip = imm;
96 return 1;
97 case 19:
98 switch (instr & 0x7fe) {
99 case 0x20: /* bclr */
100 case 0x420: /* bcctr */
101 imm = (instr & 0x400)? regs->ctr: regs->link;
102 regs->nip += 4;
103 if ((regs->msr & MSR_SF) == 0) {
104 regs->nip &= 0xffffffffUL;
105 imm &= 0xffffffffUL;
106 }
107 if (instr & 1)
108 regs->link = regs->nip;
109 if (branch_taken(instr, regs))
110 regs->nip = imm;
111 return 1;
112 case 0x24: /* rfid, scary */
113 return -1;
114 }
115 case 31:
116 rd = (instr >> 21) & 0x1f;
117 switch (instr & 0x7fe) {
118 case 0xa6: /* mfmsr */
119 regs->gpr[rd] = regs->msr & MSR_MASK;
120 regs->nip += 4;
121 if ((regs->msr & MSR_SF) == 0)
122 regs->nip &= 0xffffffffUL;
123 return 1;
124 case 0x164: /* mtmsrd */
125 /* only MSR_EE and MSR_RI get changed if bit 15 set */
126 /* mtmsrd doesn't change MSR_HV and MSR_ME */
127 imm = (instr & 0x10000)? 0x8002: 0xefffffffffffefffUL;
128 imm = (regs->msr & MSR_MASK & ~imm)
129 | (regs->gpr[rd] & imm);
130 if ((imm & MSR_RI) == 0)
131 /* can't step mtmsrd that would clear MSR_RI */
132 return -1;
133 regs->msr = imm;
134 regs->nip += 4;
135 if ((imm & MSR_SF) == 0)
136 regs->nip &= 0xffffffffUL;
137 return 1;
138 }
139 }
140 return 0;
141}
diff --git a/arch/ppc64/lib/strcase.c b/arch/ppc64/lib/strcase.c
deleted file mode 100644
index e84f243368c0..000000000000
--- a/arch/ppc64/lib/strcase.c
+++ /dev/null
@@ -1,31 +0,0 @@
1/*
2 * c 2001 PPC 64 Team, IBM Corp
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 */
9#include <linux/ctype.h>
10
11int strcasecmp(const char *s1, const char *s2)
12{
13 int c1, c2;
14
15 do {
16 c1 = tolower(*s1++);
17 c2 = tolower(*s2++);
18 } while (c1 == c2 && c1 != 0);
19 return c1 - c2;
20}
21
22int strncasecmp(const char *s1, const char *s2, int n)
23{
24 int c1, c2;
25
26 do {
27 c1 = tolower(*s1++);
28 c2 = tolower(*s2++);
29 } while ((--n > 0) && c1 == c2 && c1 != 0);
30 return c1 - c2;
31}
diff --git a/arch/ppc64/lib/string.S b/arch/ppc64/lib/string.S
index 813587e5c2ec..e21a0038a4d6 100644
--- a/arch/ppc64/lib/string.S
+++ b/arch/ppc64/lib/string.S
@@ -65,112 +65,6 @@ _GLOBAL(strlen)
65 subf r3,r3,r4 65 subf r3,r3,r4
66 blr 66 blr
67 67
68_GLOBAL(memset)
69 neg r0,r3
70 rlwimi r4,r4,8,16,23
71 andi. r0,r0,7 /* # bytes to be 8-byte aligned */
72 rlwimi r4,r4,16,0,15
73 cmplw cr1,r5,r0 /* do we get that far? */
74 rldimi r4,r4,32,0
75 mtcrf 1,r0
76 mr r6,r3
77 blt cr1,8f
78 beq+ 3f /* if already 8-byte aligned */
79 subf r5,r0,r5
80 bf 31,1f
81 stb r4,0(r6)
82 addi r6,r6,1
831: bf 30,2f
84 sth r4,0(r6)
85 addi r6,r6,2
862: bf 29,3f
87 stw r4,0(r6)
88 addi r6,r6,4
893: srdi. r0,r5,6
90 clrldi r5,r5,58
91 mtctr r0
92 beq 5f
934: std r4,0(r6)
94 std r4,8(r6)
95 std r4,16(r6)
96 std r4,24(r6)
97 std r4,32(r6)
98 std r4,40(r6)
99 std r4,48(r6)
100 std r4,56(r6)
101 addi r6,r6,64
102 bdnz 4b
1035: srwi. r0,r5,3
104 clrlwi r5,r5,29
105 mtcrf 1,r0
106 beq 8f
107 bf 29,6f
108 std r4,0(r6)
109 std r4,8(r6)
110 std r4,16(r6)
111 std r4,24(r6)
112 addi r6,r6,32
1136: bf 30,7f
114 std r4,0(r6)
115 std r4,8(r6)
116 addi r6,r6,16
1177: bf 31,8f
118 std r4,0(r6)
119 addi r6,r6,8
1208: cmpwi r5,0
121 mtcrf 1,r5
122 beqlr+
123 bf 29,9f
124 stw r4,0(r6)
125 addi r6,r6,4
1269: bf 30,10f
127 sth r4,0(r6)
128 addi r6,r6,2
12910: bflr 31
130 stb r4,0(r6)
131 blr
132
133_GLOBAL(memmove)
134 cmplw 0,r3,r4
135 bgt .backwards_memcpy
136 b .memcpy
137
138_GLOBAL(backwards_memcpy)
139 rlwinm. r7,r5,32-3,3,31 /* r0 = r5 >> 3 */
140 add r6,r3,r5
141 add r4,r4,r5
142 beq 2f
143 andi. r0,r6,3
144 mtctr r7
145 bne 5f
1461: lwz r7,-4(r4)
147 lwzu r8,-8(r4)
148 stw r7,-4(r6)
149 stwu r8,-8(r6)
150 bdnz 1b
151 andi. r5,r5,7
1522: cmplwi 0,r5,4
153 blt 3f
154 lwzu r0,-4(r4)
155 subi r5,r5,4
156 stwu r0,-4(r6)
1573: cmpwi 0,r5,0
158 beqlr
159 mtctr r5
1604: lbzu r0,-1(r4)
161 stbu r0,-1(r6)
162 bdnz 4b
163 blr
1645: mtctr r0
1656: lbzu r7,-1(r4)
166 stbu r7,-1(r6)
167 bdnz 6b
168 subf r5,r0,r5
169 rlwinm. r7,r5,32-3,3,31
170 beq 2b
171 mtctr r7
172 b 1b
173
174_GLOBAL(memcmp) 68_GLOBAL(memcmp)
175 cmpwi 0,r5,0 69 cmpwi 0,r5,0
176 ble- 2f 70 ble- 2f
diff --git a/arch/ppc64/lib/usercopy.c b/arch/ppc64/lib/usercopy.c
deleted file mode 100644
index 5eea6f3c1e03..000000000000
--- a/arch/ppc64/lib/usercopy.c
+++ /dev/null
@@ -1,41 +0,0 @@
1/*
2 * Functions which are too large to be inlined.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 */
9#include <linux/module.h>
10#include <asm/uaccess.h>
11
12unsigned long copy_from_user(void *to, const void __user *from, unsigned long n)
13{
14 if (likely(access_ok(VERIFY_READ, from, n)))
15 n = __copy_from_user(to, from, n);
16 else
17 memset(to, 0, n);
18 return n;
19}
20
21unsigned long copy_to_user(void __user *to, const void *from, unsigned long n)
22{
23 if (likely(access_ok(VERIFY_WRITE, to, n)))
24 n = __copy_to_user(to, from, n);
25 return n;
26}
27
28unsigned long copy_in_user(void __user *to, const void __user *from,
29 unsigned long n)
30{
31 might_sleep();
32 if (likely(access_ok(VERIFY_READ, from, n) &&
33 access_ok(VERIFY_WRITE, to, n)))
34 n =__copy_tofrom_user(to, from, n);
35 return n;
36}
37
38EXPORT_SYMBOL(copy_from_user);
39EXPORT_SYMBOL(copy_to_user);
40EXPORT_SYMBOL(copy_in_user);
41
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-27 13:41:43 -0500