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-rw-r--r--arch/powerpc/kernel/asm-offsets.c1
-rw-r--r--arch/powerpc/kernel/cputable.c9
-rw-r--r--arch/powerpc/kernel/entry_32.S95
-rw-r--r--arch/powerpc/kernel/entry_64.S94
-rw-r--r--arch/powerpc/kernel/pci_64.c5
-rw-r--r--arch/powerpc/kernel/ppc_ksyms.c10
-rw-r--r--arch/powerpc/kernel/prom_init.c2
-rw-r--r--arch/powerpc/kernel/ptrace.c5
-rw-r--r--arch/powerpc/kernel/rtas-rtc.c2
-rw-r--r--arch/powerpc/kernel/rtas_pci.c24
-rw-r--r--arch/powerpc/kernel/signal_32.c19
-rw-r--r--arch/powerpc/kernel/signal_64.c9
-rw-r--r--arch/powerpc/kernel/systbl.S2
-rw-r--r--arch/powerpc/kernel/time.c48
-rw-r--r--arch/powerpc/kernel/traps.c2
15 files changed, 100 insertions, 227 deletions
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index 840aad43a98b..c9a660e4c2db 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -92,7 +92,6 @@ int main(void)
92 92
93 DEFINE(TI_FLAGS, offsetof(struct thread_info, flags)); 93 DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
94 DEFINE(TI_PREEMPT, offsetof(struct thread_info, preempt_count)); 94 DEFINE(TI_PREEMPT, offsetof(struct thread_info, preempt_count));
95 DEFINE(TI_SIGFRAME, offsetof(struct thread_info, nvgprs_frame));
96 DEFINE(TI_TASK, offsetof(struct thread_info, task)); 95 DEFINE(TI_TASK, offsetof(struct thread_info, task));
97#ifdef CONFIG_PPC32 96#ifdef CONFIG_PPC32
98 DEFINE(TI_EXECDOMAIN, offsetof(struct thread_info, exec_domain)); 97 DEFINE(TI_EXECDOMAIN, offsetof(struct thread_info, exec_domain));
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index 10696456a4c6..e4e81374cb9a 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -53,8 +53,10 @@ extern void __setup_cpu_ppc970(unsigned long offset, struct cpu_spec* spec);
53 PPC_FEATURE_HAS_MMU) 53 PPC_FEATURE_HAS_MMU)
54#define COMMON_USER_PPC64 (COMMON_USER | PPC_FEATURE_64) 54#define COMMON_USER_PPC64 (COMMON_USER | PPC_FEATURE_64)
55#define COMMON_USER_POWER4 (COMMON_USER_PPC64 | PPC_FEATURE_POWER4) 55#define COMMON_USER_POWER4 (COMMON_USER_PPC64 | PPC_FEATURE_POWER4)
56#define COMMON_USER_POWER5 (COMMON_USER_PPC64 | PPC_FEATURE_POWER5) 56#define COMMON_USER_POWER5 (COMMON_USER_PPC64 | PPC_FEATURE_POWER5 |\
57#define COMMON_USER_POWER5_PLUS (COMMON_USER_PPC64 | PPC_FEATURE_POWER5_PLUS) 57 PPC_FEATURE_SMT | PPC_FEATURE_ICACHE_SNOOP)
58#define COMMON_USER_POWER5_PLUS (COMMON_USER_PPC64 | PPC_FEATURE_POWER5_PLUS|\
59 PPC_FEATURE_SMT | PPC_FEATURE_ICACHE_SNOOP)
58#define COMMON_USER_BOOKE (PPC_FEATURE_32 | PPC_FEATURE_HAS_MMU | \ 60#define COMMON_USER_BOOKE (PPC_FEATURE_32 | PPC_FEATURE_HAS_MMU | \
59 PPC_FEATURE_BOOKE) 61 PPC_FEATURE_BOOKE)
60 62
@@ -267,7 +269,8 @@ struct cpu_spec cpu_specs[] = {
267 .cpu_name = "Cell Broadband Engine", 269 .cpu_name = "Cell Broadband Engine",
268 .cpu_features = CPU_FTRS_CELL, 270 .cpu_features = CPU_FTRS_CELL,
269 .cpu_user_features = COMMON_USER_PPC64 | 271 .cpu_user_features = COMMON_USER_PPC64 |
270 PPC_FEATURE_CELL | PPC_FEATURE_HAS_ALTIVEC_COMP, 272 PPC_FEATURE_CELL | PPC_FEATURE_HAS_ALTIVEC_COMP |
273 PPC_FEATURE_SMT,
271 .icache_bsize = 128, 274 .icache_bsize = 128,
272 .dcache_bsize = 128, 275 .dcache_bsize = 128,
273 .cpu_setup = __setup_cpu_be, 276 .cpu_setup = __setup_cpu_be,
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S
index f20a67261ec7..4827ca1ec89b 100644
--- a/arch/powerpc/kernel/entry_32.S
+++ b/arch/powerpc/kernel/entry_32.S
@@ -227,7 +227,7 @@ ret_from_syscall:
227 MTMSRD(r10) 227 MTMSRD(r10)
228 lwz r9,TI_FLAGS(r12) 228 lwz r9,TI_FLAGS(r12)
229 li r8,-_LAST_ERRNO 229 li r8,-_LAST_ERRNO
230 andi. r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SIGPENDING|_TIF_NEED_RESCHED|_TIF_RESTOREALL|_TIF_RESTORE_SIGMASK) 230 andi. r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SINGLESTEP|_TIF_USER_WORK_MASK|_TIF_PERSYSCALL_MASK)
231 bne- syscall_exit_work 231 bne- syscall_exit_work
232 cmplw 0,r3,r8 232 cmplw 0,r3,r8
233 blt+ syscall_exit_cont 233 blt+ syscall_exit_cont
@@ -287,8 +287,10 @@ syscall_dotrace:
287 287
288syscall_exit_work: 288syscall_exit_work:
289 andi. r0,r9,_TIF_RESTOREALL 289 andi. r0,r9,_TIF_RESTOREALL
290 bne- 2f 290 beq+ 0f
291 cmplw 0,r3,r8 291 REST_NVGPRS(r1)
292 b 2f
2930: cmplw 0,r3,r8
292 blt+ 1f 294 blt+ 1f
293 andi. r0,r9,_TIF_NOERROR 295 andi. r0,r9,_TIF_NOERROR
294 bne- 1f 296 bne- 1f
@@ -302,9 +304,7 @@ syscall_exit_work:
3022: andi. r0,r9,(_TIF_PERSYSCALL_MASK) 3042: andi. r0,r9,(_TIF_PERSYSCALL_MASK)
303 beq 4f 305 beq 4f
304 306
305 /* Clear per-syscall TIF flags if any are set, but _leave_ 307 /* Clear per-syscall TIF flags if any are set. */
306 _TIF_SAVE_NVGPRS set in r9 since we haven't dealt with that
307 yet. */
308 308
309 li r11,_TIF_PERSYSCALL_MASK 309 li r11,_TIF_PERSYSCALL_MASK
310 addi r12,r12,TI_FLAGS 310 addi r12,r12,TI_FLAGS
@@ -318,8 +318,13 @@ syscall_exit_work:
318 subi r12,r12,TI_FLAGS 318 subi r12,r12,TI_FLAGS
319 319
3204: /* Anything which requires enabling interrupts? */ 3204: /* Anything which requires enabling interrupts? */
321 andi. r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SINGLESTEP|_TIF_SAVE_NVGPRS) 321 andi. r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SINGLESTEP)
322 beq 7f 322 beq ret_from_except
323
324 /* Re-enable interrupts */
325 ori r10,r10,MSR_EE
326 SYNC
327 MTMSRD(r10)
323 328
324 /* Save NVGPRS if they're not saved already */ 329 /* Save NVGPRS if they're not saved already */
325 lwz r4,_TRAP(r1) 330 lwz r4,_TRAP(r1)
@@ -328,71 +333,11 @@ syscall_exit_work:
328 SAVE_NVGPRS(r1) 333 SAVE_NVGPRS(r1)
329 li r4,0xc00 334 li r4,0xc00
330 stw r4,_TRAP(r1) 335 stw r4,_TRAP(r1)
331 3365:
332 /* Re-enable interrupts */
3335: ori r10,r10,MSR_EE
334 SYNC
335 MTMSRD(r10)
336
337 andi. r0,r9,_TIF_SAVE_NVGPRS
338 bne save_user_nvgprs
339
340save_user_nvgprs_cont:
341 andi. r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SINGLESTEP)
342 beq 7f
343
344 addi r3,r1,STACK_FRAME_OVERHEAD 337 addi r3,r1,STACK_FRAME_OVERHEAD
345 bl do_syscall_trace_leave 338 bl do_syscall_trace_leave
346 REST_NVGPRS(r1) 339 b ret_from_except_full
347
3486: lwz r3,GPR3(r1)
349 LOAD_MSR_KERNEL(r10,MSR_KERNEL) /* doesn't include MSR_EE */
350 SYNC
351 MTMSRD(r10) /* disable interrupts again */
352 rlwinm r12,r1,0,0,(31-THREAD_SHIFT) /* current_thread_info() */
353 lwz r9,TI_FLAGS(r12)
3547:
355 andi. r0,r9,_TIF_NEED_RESCHED
356 bne 8f
357 lwz r5,_MSR(r1)
358 andi. r5,r5,MSR_PR
359 beq ret_from_except
360 andi. r0,r9,_TIF_SIGPENDING|_TIF_RESTORE_SIGMASK
361 beq ret_from_except
362 b do_user_signal
3638:
364 ori r10,r10,MSR_EE
365 SYNC
366 MTMSRD(r10) /* re-enable interrupts */
367 bl schedule
368 b 6b
369
370save_user_nvgprs:
371 lwz r8,TI_SIGFRAME(r12)
372
373.macro savewords start, end
374 1: stw \start,4*(\start)(r8)
375 .section __ex_table,"a"
376 .align 2
377 .long 1b,save_user_nvgprs_fault
378 .previous
379 .if \end - \start
380 savewords "(\start+1)",\end
381 .endif
382.endm
383 savewords 14,31
384 b save_user_nvgprs_cont
385
386
387save_user_nvgprs_fault:
388 li r3,11 /* SIGSEGV */
389 lwz r4,TI_TASK(r12)
390 bl force_sigsegv
391 340
392 rlwinm r12,r1,0,0,(31-THREAD_SHIFT) /* current_thread_info() */
393 lwz r9,TI_FLAGS(r12)
394 b save_user_nvgprs_cont
395
396#ifdef SHOW_SYSCALLS 341#ifdef SHOW_SYSCALLS
397do_show_syscall: 342do_show_syscall:
398#ifdef SHOW_SYSCALLS_TASK 343#ifdef SHOW_SYSCALLS_TASK
@@ -490,6 +435,14 @@ ppc_clone:
490 stw r0,_TRAP(r1) /* register set saved */ 435 stw r0,_TRAP(r1) /* register set saved */
491 b sys_clone 436 b sys_clone
492 437
438 .globl ppc_swapcontext
439ppc_swapcontext:
440 SAVE_NVGPRS(r1)
441 lwz r0,_TRAP(r1)
442 rlwinm r0,r0,0,0,30 /* clear LSB to indicate full */
443 stw r0,_TRAP(r1) /* register set saved */
444 b sys_swapcontext
445
493/* 446/*
494 * Top-level page fault handling. 447 * Top-level page fault handling.
495 * This is in assembler because if do_page_fault tells us that 448 * This is in assembler because if do_page_fault tells us that
@@ -683,7 +636,7 @@ user_exc_return: /* r10 contains MSR_KERNEL here */
683 /* Check current_thread_info()->flags */ 636 /* Check current_thread_info()->flags */
684 rlwinm r9,r1,0,0,(31-THREAD_SHIFT) 637 rlwinm r9,r1,0,0,(31-THREAD_SHIFT)
685 lwz r9,TI_FLAGS(r9) 638 lwz r9,TI_FLAGS(r9)
686 andi. r0,r9,(_TIF_SIGPENDING|_TIF_NEED_RESCHED|_TIF_RESTOREALL|_TIF_RESTORE_SIGMASK) 639 andi. r0,r9,(_TIF_SIGPENDING|_TIF_RESTORE_SIGMASK|_TIF_NEED_RESCHED)
687 bne do_work 640 bne do_work
688 641
689restore_user: 642restore_user:
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index 388f861b8ed1..24be0cf86d7f 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -160,7 +160,7 @@ syscall_exit:
160 mtmsrd r10,1 160 mtmsrd r10,1
161 ld r9,TI_FLAGS(r12) 161 ld r9,TI_FLAGS(r12)
162 li r11,-_LAST_ERRNO 162 li r11,-_LAST_ERRNO
163 andi. r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SINGLESTEP|_TIF_SIGPENDING|_TIF_NEED_RESCHED|_TIF_RESTOREALL|_TIF_SAVE_NVGPRS|_TIF_NOERROR|_TIF_RESTORE_SIGMASK) 163 andi. r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SINGLESTEP|_TIF_USER_WORK_MASK|_TIF_PERSYSCALL_MASK)
164 bne- syscall_exit_work 164 bne- syscall_exit_work
165 cmpld r3,r11 165 cmpld r3,r11
166 ld r5,_CCR(r1) 166 ld r5,_CCR(r1)
@@ -216,8 +216,10 @@ syscall_exit_work:
216 If TIF_NOERROR is set, just save r3 as it is. */ 216 If TIF_NOERROR is set, just save r3 as it is. */
217 217
218 andi. r0,r9,_TIF_RESTOREALL 218 andi. r0,r9,_TIF_RESTOREALL
219 bne- 2f 219 beq+ 0f
220 cmpld r3,r11 /* r10 is -LAST_ERRNO */ 220 REST_NVGPRS(r1)
221 b 2f
2220: cmpld r3,r11 /* r10 is -LAST_ERRNO */
221 blt+ 1f 223 blt+ 1f
222 andi. r0,r9,_TIF_NOERROR 224 andi. r0,r9,_TIF_NOERROR
223 bne- 1f 225 bne- 1f
@@ -229,9 +231,7 @@ syscall_exit_work:
2292: andi. r0,r9,(_TIF_PERSYSCALL_MASK) 2312: andi. r0,r9,(_TIF_PERSYSCALL_MASK)
230 beq 4f 232 beq 4f
231 233
232 /* Clear per-syscall TIF flags if any are set, but _leave_ 234 /* Clear per-syscall TIF flags if any are set. */
233 _TIF_SAVE_NVGPRS set in r9 since we haven't dealt with that
234 yet. */
235 235
236 li r11,_TIF_PERSYSCALL_MASK 236 li r11,_TIF_PERSYSCALL_MASK
237 addi r12,r12,TI_FLAGS 237 addi r12,r12,TI_FLAGS
@@ -240,10 +240,9 @@ syscall_exit_work:
240 stdcx. r10,0,r12 240 stdcx. r10,0,r12
241 bne- 3b 241 bne- 3b
242 subi r12,r12,TI_FLAGS 242 subi r12,r12,TI_FLAGS
243 243
2444: bl .save_nvgprs 2444: /* Anything else left to do? */
245 /* Anything else left to do? */ 245 andi. r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SINGLESTEP)
246 andi. r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SINGLESTEP|_TIF_SAVE_NVGPRS)
247 beq .ret_from_except_lite 246 beq .ret_from_except_lite
248 247
249 /* Re-enable interrupts */ 248 /* Re-enable interrupts */
@@ -251,26 +250,10 @@ syscall_exit_work:
251 ori r10,r10,MSR_EE 250 ori r10,r10,MSR_EE
252 mtmsrd r10,1 251 mtmsrd r10,1
253 252
254 andi. r0,r9,_TIF_SAVE_NVGPRS 253 bl .save_nvgprs
255 bne save_user_nvgprs
256
257 /* If tracing, re-enable interrupts and do it */
258save_user_nvgprs_cont:
259 andi. r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SINGLESTEP)
260 beq 5f
261
262 addi r3,r1,STACK_FRAME_OVERHEAD 254 addi r3,r1,STACK_FRAME_OVERHEAD
263 bl .do_syscall_trace_leave 255 bl .do_syscall_trace_leave
264 REST_NVGPRS(r1) 256 b .ret_from_except
265 clrrdi r12,r1,THREAD_SHIFT
266
267 /* Disable interrupts again and handle other work if any */
2685: mfmsr r10
269 rldicl r10,r10,48,1
270 rotldi r10,r10,16
271 mtmsrd r10,1
272
273 b .ret_from_except_lite
274 257
275/* Save non-volatile GPRs, if not already saved. */ 258/* Save non-volatile GPRs, if not already saved. */
276_GLOBAL(save_nvgprs) 259_GLOBAL(save_nvgprs)
@@ -282,51 +265,6 @@ _GLOBAL(save_nvgprs)
282 std r0,_TRAP(r1) 265 std r0,_TRAP(r1)
283 blr 266 blr
284 267
285
286save_user_nvgprs:
287 ld r10,TI_SIGFRAME(r12)
288 andi. r0,r9,_TIF_32BIT
289 beq- save_user_nvgprs_64
290
291 /* 32-bit save to userspace */
292
293.macro savewords start, end
294 1: stw \start,4*(\start)(r10)
295 .section __ex_table,"a"
296 .align 3
297 .llong 1b,save_user_nvgprs_fault
298 .previous
299 .if \end - \start
300 savewords "(\start+1)",\end
301 .endif
302.endm
303 savewords 14,31
304 b save_user_nvgprs_cont
305
306save_user_nvgprs_64:
307 /* 64-bit save to userspace */
308
309.macro savelongs start, end
310 1: std \start,8*(\start)(r10)
311 .section __ex_table,"a"
312 .align 3
313 .llong 1b,save_user_nvgprs_fault
314 .previous
315 .if \end - \start
316 savelongs "(\start+1)",\end
317 .endif
318.endm
319 savelongs 14,31
320 b save_user_nvgprs_cont
321
322save_user_nvgprs_fault:
323 li r3,11 /* SIGSEGV */
324 ld r4,TI_TASK(r12)
325 bl .force_sigsegv
326
327 clrrdi r12,r1,THREAD_SHIFT
328 ld r9,TI_FLAGS(r12)
329 b save_user_nvgprs_cont
330 268
331/* 269/*
332 * The sigsuspend and rt_sigsuspend system calls can call do_signal 270 * The sigsuspend and rt_sigsuspend system calls can call do_signal
@@ -352,6 +290,16 @@ _GLOBAL(ppc_clone)
352 bl .sys_clone 290 bl .sys_clone
353 b syscall_exit 291 b syscall_exit
354 292
293_GLOBAL(ppc32_swapcontext)
294 bl .save_nvgprs
295 bl .compat_sys_swapcontext
296 b syscall_exit
297
298_GLOBAL(ppc64_swapcontext)
299 bl .save_nvgprs
300 bl .sys_swapcontext
301 b syscall_exit
302
355_GLOBAL(ret_from_fork) 303_GLOBAL(ret_from_fork)
356 bl .schedule_tail 304 bl .schedule_tail
357 REST_NVGPRS(r1) 305 REST_NVGPRS(r1)
diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
index c367520bc1c3..ba92bab7cc2c 100644
--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -589,7 +589,6 @@ void __devinit scan_phb(struct pci_controller *hose)
589#endif /* CONFIG_PPC_MULTIPLATFORM */ 589#endif /* CONFIG_PPC_MULTIPLATFORM */
590 if (mode == PCI_PROBE_NORMAL) 590 if (mode == PCI_PROBE_NORMAL)
591 hose->last_busno = bus->subordinate = pci_scan_child_bus(bus); 591 hose->last_busno = bus->subordinate = pci_scan_child_bus(bus);
592 pci_bus_add_devices(bus);
593} 592}
594 593
595static int __init pcibios_init(void) 594static int __init pcibios_init(void)
@@ -608,8 +607,10 @@ static int __init pcibios_init(void)
608 printk("PCI: Probing PCI hardware\n"); 607 printk("PCI: Probing PCI hardware\n");
609 608
610 /* Scan all of the recorded PCI controllers. */ 609 /* Scan all of the recorded PCI controllers. */
611 list_for_each_entry_safe(hose, tmp, &hose_list, list_node) 610 list_for_each_entry_safe(hose, tmp, &hose_list, list_node) {
612 scan_phb(hose); 611 scan_phb(hose);
612 pci_bus_add_devices(hose->bus);
613 }
613 614
614#ifndef CONFIG_PPC_ISERIES 615#ifndef CONFIG_PPC_ISERIES
615 if (pci_probe_only) 616 if (pci_probe_only)
diff --git a/arch/powerpc/kernel/ppc_ksyms.c b/arch/powerpc/kernel/ppc_ksyms.c
index 8a731ea877b7..63ecbec05202 100644
--- a/arch/powerpc/kernel/ppc_ksyms.c
+++ b/arch/powerpc/kernel/ppc_ksyms.c
@@ -110,15 +110,6 @@ EXPORT_SYMBOL(_insw_ns);
110EXPORT_SYMBOL(_outsw_ns); 110EXPORT_SYMBOL(_outsw_ns);
111EXPORT_SYMBOL(_insl_ns); 111EXPORT_SYMBOL(_insl_ns);
112EXPORT_SYMBOL(_outsl_ns); 112EXPORT_SYMBOL(_outsl_ns);
113EXPORT_SYMBOL(ioremap);
114#ifdef CONFIG_44x
115EXPORT_SYMBOL(ioremap64);
116#endif
117EXPORT_SYMBOL(__ioremap);
118EXPORT_SYMBOL(iounmap);
119#ifdef CONFIG_PPC32
120EXPORT_SYMBOL(ioremap_bot); /* aka VMALLOC_END */
121#endif
122 113
123#if defined(CONFIG_PPC32) && (defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)) 114#if defined(CONFIG_PPC32) && (defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE))
124EXPORT_SYMBOL(ppc_ide_md); 115EXPORT_SYMBOL(ppc_ide_md);
@@ -161,7 +152,6 @@ EXPORT_SYMBOL(__flush_icache_range);
161EXPORT_SYMBOL(flush_dcache_range); 152EXPORT_SYMBOL(flush_dcache_range);
162 153
163#ifdef CONFIG_SMP 154#ifdef CONFIG_SMP
164EXPORT_SYMBOL(smp_call_function);
165#ifdef CONFIG_PPC32 155#ifdef CONFIG_PPC32
166EXPORT_SYMBOL(smp_hw_index); 156EXPORT_SYMBOL(smp_hw_index);
167#endif 157#endif
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index d34fe537400e..813c2cd194c2 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -978,7 +978,7 @@ static void __init prom_init_mem(void)
978 if (size == 0) 978 if (size == 0)
979 continue; 979 continue;
980 prom_debug(" %x %x\n", base, size); 980 prom_debug(" %x %x\n", base, size);
981 if (base == 0) 981 if (base == 0 && (RELOC(of_platform) & PLATFORM_LPAR))
982 RELOC(rmo_top) = size; 982 RELOC(rmo_top) = size;
983 if ((base + size) > RELOC(ram_top)) 983 if ((base + size) > RELOC(ram_top))
984 RELOC(ram_top) = base + size; 984 RELOC(ram_top) = base + size;
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index 400793c71304..bcb83574335b 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -561,10 +561,7 @@ void do_syscall_trace_leave(struct pt_regs *regs)
561 regs->result); 561 regs->result);
562 562
563 if ((test_thread_flag(TIF_SYSCALL_TRACE) 563 if ((test_thread_flag(TIF_SYSCALL_TRACE)
564#ifdef CONFIG_PPC64 564 || test_thread_flag(TIF_SINGLESTEP))
565 || test_thread_flag(TIF_SINGLESTEP)
566#endif
567 )
568 && (current->ptrace & PT_PTRACED)) 565 && (current->ptrace & PT_PTRACED))
569 do_syscall_trace(); 566 do_syscall_trace();
570} 567}
diff --git a/arch/powerpc/kernel/rtas-rtc.c b/arch/powerpc/kernel/rtas-rtc.c
index 635d3b9a8811..34d073fb6091 100644
--- a/arch/powerpc/kernel/rtas-rtc.c
+++ b/arch/powerpc/kernel/rtas-rtc.c
@@ -52,7 +52,7 @@ void rtas_get_rtc_time(struct rtc_time *rtc_tm)
52 error = rtas_call(rtas_token("get-time-of-day"), 0, 8, ret); 52 error = rtas_call(rtas_token("get-time-of-day"), 0, 8, ret);
53 if (error == RTAS_CLOCK_BUSY || rtas_is_extended_busy(error)) { 53 if (error == RTAS_CLOCK_BUSY || rtas_is_extended_busy(error)) {
54 if (in_interrupt() && printk_ratelimit()) { 54 if (in_interrupt() && printk_ratelimit()) {
55 memset(&rtc_tm, 0, sizeof(struct rtc_time)); 55 memset(rtc_tm, 0, sizeof(struct rtc_time));
56 printk(KERN_WARNING "error: reading clock" 56 printk(KERN_WARNING "error: reading clock"
57 " would delay interrupt\n"); 57 " would delay interrupt\n");
58 return; /* delay not allowed */ 58 return; /* delay not allowed */
diff --git a/arch/powerpc/kernel/rtas_pci.c b/arch/powerpc/kernel/rtas_pci.c
index 5579f6559912..7442775ef2a1 100644
--- a/arch/powerpc/kernel/rtas_pci.c
+++ b/arch/powerpc/kernel/rtas_pci.c
@@ -280,8 +280,7 @@ static int phb_set_bus_ranges(struct device_node *dev,
280 return 0; 280 return 0;
281} 281}
282 282
283static int __devinit setup_phb(struct device_node *dev, 283int __devinit setup_phb(struct device_node *dev, struct pci_controller *phb)
284 struct pci_controller *phb)
285{ 284{
286 if (is_python(dev)) 285 if (is_python(dev))
287 python_countermeasures(dev); 286 python_countermeasures(dev);
@@ -359,27 +358,6 @@ unsigned long __init find_and_init_phbs(void)
359 return 0; 358 return 0;
360} 359}
361 360
362struct pci_controller * __devinit init_phb_dynamic(struct device_node *dn)
363{
364 struct pci_controller *phb;
365 int primary;
366
367 primary = list_empty(&hose_list);
368 phb = pcibios_alloc_controller(dn);
369 if (!phb)
370 return NULL;
371 setup_phb(dn, phb);
372 pci_process_bridge_OF_ranges(phb, dn, primary);
373
374 pci_setup_phb_io_dynamic(phb, primary);
375
376 pci_devs_phb_init_dynamic(phb);
377 scan_phb(phb);
378
379 return phb;
380}
381EXPORT_SYMBOL(init_phb_dynamic);
382
383/* RPA-specific bits for removing PHBs */ 361/* RPA-specific bits for removing PHBs */
384int pcibios_remove_root_bus(struct pci_controller *phb) 362int pcibios_remove_root_bus(struct pci_controller *phb)
385{ 363{
diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
index bd837b5dbf06..d7a4e814974d 100644
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -151,10 +151,7 @@ static inline int save_general_regs(struct pt_regs *regs,
151 elf_greg_t64 *gregs = (elf_greg_t64 *)regs; 151 elf_greg_t64 *gregs = (elf_greg_t64 *)regs;
152 int i; 152 int i;
153 153
154 if (!FULL_REGS(regs)) { 154 WARN_ON(!FULL_REGS(regs));
155 set_thread_flag(TIF_SAVE_NVGPRS);
156 current_thread_info()->nvgprs_frame = frame->mc_gregs;
157 }
158 155
159 for (i = 0; i <= PT_RESULT; i ++) { 156 for (i = 0; i <= PT_RESULT; i ++) {
160 if (i == 14 && !FULL_REGS(regs)) 157 if (i == 14 && !FULL_REGS(regs))
@@ -215,15 +212,7 @@ static inline int get_old_sigaction(struct k_sigaction *new_ka,
215static inline int save_general_regs(struct pt_regs *regs, 212static inline int save_general_regs(struct pt_regs *regs,
216 struct mcontext __user *frame) 213 struct mcontext __user *frame)
217{ 214{
218 if (!FULL_REGS(regs)) { 215 WARN_ON(!FULL_REGS(regs));
219 /* Zero out the unsaved GPRs to avoid information
220 leak, and set TIF_SAVE_NVGPRS to ensure that the
221 registers do actually get saved later. */
222 memset(&regs->gpr[14], 0, 18 * sizeof(unsigned long));
223 current_thread_info()->nvgprs_frame = &frame->mc_gregs;
224 set_thread_flag(TIF_SAVE_NVGPRS);
225 }
226
227 return __copy_to_user(&frame->mc_gregs, regs, GP_REGS_SIZE); 216 return __copy_to_user(&frame->mc_gregs, regs, GP_REGS_SIZE);
228} 217}
229 218
@@ -826,8 +815,8 @@ static int do_setcontext(struct ucontext __user *ucp, struct pt_regs *regs, int
826} 815}
827 816
828long sys_swapcontext(struct ucontext __user *old_ctx, 817long sys_swapcontext(struct ucontext __user *old_ctx,
829 struct ucontext __user *new_ctx, 818 struct ucontext __user *new_ctx,
830 int ctx_size, int r6, int r7, int r8, struct pt_regs *regs) 819 int ctx_size, int r6, int r7, int r8, struct pt_regs *regs)
831{ 820{
832 unsigned char tmp; 821 unsigned char tmp;
833 822
diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
index 497a5d3df359..4324f8a8ba24 100644
--- a/arch/powerpc/kernel/signal_64.c
+++ b/arch/powerpc/kernel/signal_64.c
@@ -118,14 +118,7 @@ static long setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs,
118 err |= __put_user(0, &sc->v_regs); 118 err |= __put_user(0, &sc->v_regs);
119#endif /* CONFIG_ALTIVEC */ 119#endif /* CONFIG_ALTIVEC */
120 err |= __put_user(&sc->gp_regs, &sc->regs); 120 err |= __put_user(&sc->gp_regs, &sc->regs);
121 if (!FULL_REGS(regs)) { 121 WARN_ON(!FULL_REGS(regs));
122 /* Zero out the unsaved GPRs to avoid information
123 leak, and set TIF_SAVE_NVGPRS to ensure that the
124 registers do actually get saved later. */
125 memset(&regs->gpr[14], 0, 18 * sizeof(unsigned long));
126 set_thread_flag(TIF_SAVE_NVGPRS);
127 current_thread_info()->nvgprs_frame = &sc->gp_regs;
128 }
129 err |= __copy_to_user(&sc->gp_regs, regs, GP_REGS_SIZE); 122 err |= __copy_to_user(&sc->gp_regs, regs, GP_REGS_SIZE);
130 err |= __copy_to_user(&sc->fp_regs, &current->thread.fpr, FP_REGS_SIZE); 123 err |= __copy_to_user(&sc->fp_regs, &current->thread.fpr, FP_REGS_SIZE);
131 err |= __put_user(signr, &sc->signal); 124 err |= __put_user(signr, &sc->signal);
diff --git a/arch/powerpc/kernel/systbl.S b/arch/powerpc/kernel/systbl.S
index 8a9f994ed917..1ad55f0466fd 100644
--- a/arch/powerpc/kernel/systbl.S
+++ b/arch/powerpc/kernel/systbl.S
@@ -288,7 +288,7 @@ COMPAT_SYS(clock_settime)
288COMPAT_SYS(clock_gettime) 288COMPAT_SYS(clock_gettime)
289COMPAT_SYS(clock_getres) 289COMPAT_SYS(clock_getres)
290COMPAT_SYS(clock_nanosleep) 290COMPAT_SYS(clock_nanosleep)
291COMPAT_SYS(swapcontext) 291SYSX(ppc64_swapcontext,ppc32_swapcontext,ppc_swapcontext)
292COMPAT_SYS(tgkill) 292COMPAT_SYS(tgkill)
293COMPAT_SYS(utimes) 293COMPAT_SYS(utimes)
294COMPAT_SYS(statfs64) 294COMPAT_SYS(statfs64)
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 2a7ddc579379..86f7e3d154d8 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -283,9 +283,9 @@ static inline void update_gtod(u64 new_tb_stamp, u64 new_stamp_xsec,
283 * the two values of tb_update_count match and are even then the 283 * the two values of tb_update_count match and are even then the
284 * tb_to_xs and stamp_xsec values are consistent. If not, then it 284 * tb_to_xs and stamp_xsec values are consistent. If not, then it
285 * loops back and reads them again until this criteria is met. 285 * loops back and reads them again until this criteria is met.
286 * We expect the caller to have done the first increment of
287 * vdso_data->tb_update_count already.
286 */ 288 */
287 ++(vdso_data->tb_update_count);
288 smp_wmb();
289 vdso_data->tb_orig_stamp = new_tb_stamp; 289 vdso_data->tb_orig_stamp = new_tb_stamp;
290 vdso_data->stamp_xsec = new_stamp_xsec; 290 vdso_data->stamp_xsec = new_stamp_xsec;
291 vdso_data->tb_to_xs = new_tb_to_xs; 291 vdso_data->tb_to_xs = new_tb_to_xs;
@@ -310,20 +310,15 @@ static __inline__ void timer_recalc_offset(u64 cur_tb)
310 unsigned long offset; 310 unsigned long offset;
311 u64 new_stamp_xsec; 311 u64 new_stamp_xsec;
312 u64 tlen, t2x; 312 u64 tlen, t2x;
313 u64 tb, xsec_old, xsec_new;
314 struct gettimeofday_vars *varp;
313 315
314 if (__USE_RTC()) 316 if (__USE_RTC())
315 return; 317 return;
316 tlen = current_tick_length(); 318 tlen = current_tick_length();
317 offset = cur_tb - do_gtod.varp->tb_orig_stamp; 319 offset = cur_tb - do_gtod.varp->tb_orig_stamp;
318 if (tlen == last_tick_len && offset < 0x80000000u) { 320 if (tlen == last_tick_len && offset < 0x80000000u)
319 /* check that we're still in sync; if not, resync */ 321 return;
320 struct timeval tv;
321 __do_gettimeofday(&tv, cur_tb);
322 if (tv.tv_sec <= xtime.tv_sec &&
323 (tv.tv_sec < xtime.tv_sec ||
324 tv.tv_usec * 1000 <= xtime.tv_nsec))
325 return;
326 }
327 if (tlen != last_tick_len) { 322 if (tlen != last_tick_len) {
328 t2x = mulhdu(tlen << TICKLEN_SHIFT, ticklen_to_xs); 323 t2x = mulhdu(tlen << TICKLEN_SHIFT, ticklen_to_xs);
329 last_tick_len = tlen; 324 last_tick_len = tlen;
@@ -332,6 +327,21 @@ static __inline__ void timer_recalc_offset(u64 cur_tb)
332 new_stamp_xsec = (u64) xtime.tv_nsec * XSEC_PER_SEC; 327 new_stamp_xsec = (u64) xtime.tv_nsec * XSEC_PER_SEC;
333 do_div(new_stamp_xsec, 1000000000); 328 do_div(new_stamp_xsec, 1000000000);
334 new_stamp_xsec += (u64) xtime.tv_sec * XSEC_PER_SEC; 329 new_stamp_xsec += (u64) xtime.tv_sec * XSEC_PER_SEC;
330
331 ++vdso_data->tb_update_count;
332 smp_mb();
333
334 /*
335 * Make sure time doesn't go backwards for userspace gettimeofday.
336 */
337 tb = get_tb();
338 varp = do_gtod.varp;
339 xsec_old = mulhdu(tb - varp->tb_orig_stamp, varp->tb_to_xs)
340 + varp->stamp_xsec;
341 xsec_new = mulhdu(tb - cur_tb, t2x) + new_stamp_xsec;
342 if (xsec_new < xsec_old)
343 new_stamp_xsec += xsec_old - xsec_new;
344
335 update_gtod(cur_tb, new_stamp_xsec, t2x); 345 update_gtod(cur_tb, new_stamp_xsec, t2x);
336} 346}
337 347
@@ -564,6 +574,10 @@ int do_settimeofday(struct timespec *tv)
564 } 574 }
565#endif 575#endif
566 576
577 /* Make userspace gettimeofday spin until we're done. */
578 ++vdso_data->tb_update_count;
579 smp_mb();
580
567 /* 581 /*
568 * Subtract off the number of nanoseconds since the 582 * Subtract off the number of nanoseconds since the
569 * beginning of the last tick. 583 * beginning of the last tick.
@@ -724,10 +738,16 @@ void __init time_init(void)
724 * It is computed as: 738 * It is computed as:
725 * ticklen_to_xs = 2^N / (tb_ticks_per_jiffy * 1e9) 739 * ticklen_to_xs = 2^N / (tb_ticks_per_jiffy * 1e9)
726 * where N = 64 + 20 - TICKLEN_SCALE - TICKLEN_SHIFT 740 * where N = 64 + 20 - TICKLEN_SCALE - TICKLEN_SHIFT
727 * so as to give the result as a 0.64 fixed-point fraction. 741 * which turns out to be N = 51 - SHIFT_HZ.
742 * This gives the result as a 0.64 fixed-point fraction.
743 * That value is reduced by an offset amounting to 1 xsec per
744 * 2^31 timebase ticks to avoid problems with time going backwards
745 * by 1 xsec when we do timer_recalc_offset due to losing the
746 * fractional xsec. That offset is equal to ppc_tb_freq/2^51
747 * since there are 2^20 xsec in a second.
728 */ 748 */
729 div128_by_32(1ULL << (64 + 20 - TICKLEN_SCALE - TICKLEN_SHIFT), 0, 749 div128_by_32((1ULL << 51) - ppc_tb_freq, 0,
730 tb_ticks_per_jiffy, &res); 750 tb_ticks_per_jiffy << SHIFT_HZ, &res);
731 div128_by_32(res.result_high, res.result_low, NSEC_PER_SEC, &res); 751 div128_by_32(res.result_high, res.result_low, NSEC_PER_SEC, &res);
732 ticklen_to_xs = res.result_low; 752 ticklen_to_xs = res.result_low;
733 753
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index 7509aa6474f2..98660aedeeb7 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -814,6 +814,8 @@ void __kprobes program_check_exception(struct pt_regs *regs)
814 return; 814 return;
815 } 815 }
816 816
817 local_irq_enable();
818
817 /* Try to emulate it if we should. */ 819 /* Try to emulate it if we should. */
818 if (reason & (REASON_ILLEGAL | REASON_PRIVILEGED)) { 820 if (reason & (REASON_ILLEGAL | REASON_PRIVILEGED)) {
819 switch (emulate_instruction(regs)) { 821 switch (emulate_instruction(regs)) {
generated by cgit v1.2.2 (git 2.25.0) at 2025-10-26 15:08:46 -0400