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-rw-r--r--arch/s390/kernel/asm-offsets.c7
-rw-r--r--arch/s390/kernel/compat_linux.c84
-rw-r--r--arch/s390/kernel/compat_linux.h4
-rw-r--r--arch/s390/kernel/compat_wrapper.S35
-rw-r--r--arch/s390/kernel/debug.c4
-rw-r--r--arch/s390/kernel/entry.h6
-rw-r--r--arch/s390/kernel/init_task.c5
-rw-r--r--arch/s390/kernel/process.c41
-rw-r--r--arch/s390/kernel/ptrace.c19
-rw-r--r--arch/s390/kernel/sclp.S5
-rw-r--r--arch/s390/kernel/smp.c54
-rw-r--r--arch/s390/kernel/suspend.c24
-rw-r--r--arch/s390/kernel/swsusp_asm64.S102
-rw-r--r--arch/s390/kernel/sys_s390.c1
-rw-r--r--arch/s390/kernel/syscalls.S10
-rw-r--r--arch/s390/kernel/time.c38
-rw-r--r--arch/s390/kernel/vdso.c2
-rw-r--r--arch/s390/kernel/vdso32/Makefile2
-rw-r--r--arch/s390/kernel/vdso32/vdso32_wrapper.S3
-rw-r--r--arch/s390/kernel/vdso64/Makefile2
-rw-r--r--arch/s390/kernel/vdso64/vdso64_wrapper.S3
21 files changed, 201 insertions, 250 deletions
diff --git a/arch/s390/kernel/asm-offsets.c b/arch/s390/kernel/asm-offsets.c
index fa9905ce7d0b..63e46433e81d 100644
--- a/arch/s390/kernel/asm-offsets.c
+++ b/arch/s390/kernel/asm-offsets.c
@@ -7,6 +7,7 @@
7#include <linux/sched.h> 7#include <linux/sched.h>
8#include <linux/kbuild.h> 8#include <linux/kbuild.h>
9#include <asm/vdso.h> 9#include <asm/vdso.h>
10#include <asm/sigp.h>
10 11
11int main(void) 12int main(void)
12{ 13{
@@ -59,6 +60,10 @@ int main(void)
59 DEFINE(CLOCK_REALTIME, CLOCK_REALTIME); 60 DEFINE(CLOCK_REALTIME, CLOCK_REALTIME);
60 DEFINE(CLOCK_MONOTONIC, CLOCK_MONOTONIC); 61 DEFINE(CLOCK_MONOTONIC, CLOCK_MONOTONIC);
61 DEFINE(CLOCK_REALTIME_RES, MONOTONIC_RES_NSEC); 62 DEFINE(CLOCK_REALTIME_RES, MONOTONIC_RES_NSEC);
62 63 /* constants for SIGP */
64 DEFINE(__SIGP_STOP, sigp_stop);
65 DEFINE(__SIGP_RESTART, sigp_restart);
66 DEFINE(__SIGP_SENSE, sigp_sense);
67 DEFINE(__SIGP_INITIAL_CPU_RESET, sigp_initial_cpu_reset);
63 return 0; 68 return 0;
64} 69}
diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c
index 9ab188d67a3d..0debcec23a39 100644
--- a/arch/s390/kernel/compat_linux.c
+++ b/arch/s390/kernel/compat_linux.c
@@ -24,7 +24,6 @@
24#include <linux/signal.h> 24#include <linux/signal.h>
25#include <linux/resource.h> 25#include <linux/resource.h>
26#include <linux/times.h> 26#include <linux/times.h>
27#include <linux/utsname.h>
28#include <linux/smp.h> 27#include <linux/smp.h>
29#include <linux/smp_lock.h> 28#include <linux/smp_lock.h>
30#include <linux/sem.h> 29#include <linux/sem.h>
@@ -443,66 +442,28 @@ sys32_rt_sigqueueinfo(int pid, int sig, compat_siginfo_t __user *uinfo)
443 * sys32_execve() executes a new program after the asm stub has set 442 * sys32_execve() executes a new program after the asm stub has set
444 * things up for us. This should basically do what I want it to. 443 * things up for us. This should basically do what I want it to.
445 */ 444 */
446asmlinkage long sys32_execve(void) 445asmlinkage long sys32_execve(char __user *name, compat_uptr_t __user *argv,
446 compat_uptr_t __user *envp)
447{ 447{
448 struct pt_regs *regs = task_pt_regs(current); 448 struct pt_regs *regs = task_pt_regs(current);
449 char *filename; 449 char *filename;
450 unsigned long result; 450 long rc;
451 int rc; 451
452 452 filename = getname(name);
453 filename = getname(compat_ptr(regs->orig_gpr2)); 453 rc = PTR_ERR(filename);
454 if (IS_ERR(filename)) { 454 if (IS_ERR(filename))
455 result = PTR_ERR(filename); 455 return rc;
456 goto out; 456 rc = compat_do_execve(filename, argv, envp, regs);
457 } 457 if (rc)
458 rc = compat_do_execve(filename, compat_ptr(regs->gprs[3]), 458 goto out;
459 compat_ptr(regs->gprs[4]), regs);
460 if (rc) {
461 result = rc;
462 goto out_putname;
463 }
464 current->thread.fp_regs.fpc=0; 459 current->thread.fp_regs.fpc=0;
465 asm volatile("sfpc %0,0" : : "d" (0)); 460 asm volatile("sfpc %0,0" : : "d" (0));
466 result = regs->gprs[2]; 461 rc = regs->gprs[2];
467out_putname:
468 putname(filename);
469out: 462out:
470 return result; 463 putname(filename);
471} 464 return rc;
472
473
474#ifdef CONFIG_MODULES
475
476asmlinkage long
477sys32_init_module(void __user *umod, unsigned long len,
478 const char __user *uargs)
479{
480 return sys_init_module(umod, len, uargs);
481}
482
483asmlinkage long
484sys32_delete_module(const char __user *name_user, unsigned int flags)
485{
486 return sys_delete_module(name_user, flags);
487}
488
489#else /* CONFIG_MODULES */
490
491asmlinkage long
492sys32_init_module(void __user *umod, unsigned long len,
493 const char __user *uargs)
494{
495 return -ENOSYS;
496} 465}
497 466
498asmlinkage long
499sys32_delete_module(const char __user *name_user, unsigned int flags)
500{
501 return -ENOSYS;
502}
503
504#endif /* CONFIG_MODULES */
505
506asmlinkage long sys32_pread64(unsigned int fd, char __user *ubuf, 467asmlinkage long sys32_pread64(unsigned int fd, char __user *ubuf,
507 size_t count, u32 poshi, u32 poslo) 468 size_t count, u32 poshi, u32 poslo)
508{ 469{
@@ -801,23 +762,6 @@ asmlinkage long sys32_write(unsigned int fd, char __user * buf, size_t count)
801 return sys_write(fd, buf, count); 762 return sys_write(fd, buf, count);
802} 763}
803 764
804asmlinkage long sys32_clone(void)
805{
806 struct pt_regs *regs = task_pt_regs(current);
807 unsigned long clone_flags;
808 unsigned long newsp;
809 int __user *parent_tidptr, *child_tidptr;
810
811 clone_flags = regs->gprs[3] & 0xffffffffUL;
812 newsp = regs->orig_gpr2 & 0x7fffffffUL;
813 parent_tidptr = compat_ptr(regs->gprs[4]);
814 child_tidptr = compat_ptr(regs->gprs[5]);
815 if (!newsp)
816 newsp = regs->gprs[15];
817 return do_fork(clone_flags, newsp, regs, 0,
818 parent_tidptr, child_tidptr);
819}
820
821/* 765/*
822 * 31 bit emulation wrapper functions for sys_fadvise64/fadvise64_64. 766 * 31 bit emulation wrapper functions for sys_fadvise64/fadvise64_64.
823 * These need to rewrite the advise values for POSIX_FADV_{DONTNEED,NOREUSE} 767 * These need to rewrite the advise values for POSIX_FADV_{DONTNEED,NOREUSE}
diff --git a/arch/s390/kernel/compat_linux.h b/arch/s390/kernel/compat_linux.h
index 836a28842900..c07f9ca05ade 100644
--- a/arch/s390/kernel/compat_linux.h
+++ b/arch/s390/kernel/compat_linux.h
@@ -198,7 +198,8 @@ long sys32_rt_sigprocmask(int how, compat_sigset_t __user *set,
198 compat_sigset_t __user *oset, size_t sigsetsize); 198 compat_sigset_t __user *oset, size_t sigsetsize);
199long sys32_rt_sigpending(compat_sigset_t __user *set, size_t sigsetsize); 199long sys32_rt_sigpending(compat_sigset_t __user *set, size_t sigsetsize);
200long sys32_rt_sigqueueinfo(int pid, int sig, compat_siginfo_t __user *uinfo); 200long sys32_rt_sigqueueinfo(int pid, int sig, compat_siginfo_t __user *uinfo);
201long sys32_execve(void); 201long sys32_execve(char __user *name, compat_uptr_t __user *argv,
202 compat_uptr_t __user *envp);
202long sys32_init_module(void __user *umod, unsigned long len, 203long sys32_init_module(void __user *umod, unsigned long len,
203 const char __user *uargs); 204 const char __user *uargs);
204long sys32_delete_module(const char __user *name_user, unsigned int flags); 205long sys32_delete_module(const char __user *name_user, unsigned int flags);
@@ -222,7 +223,6 @@ unsigned long old32_mmap(struct mmap_arg_struct_emu31 __user *arg);
222long sys32_mmap2(struct mmap_arg_struct_emu31 __user *arg); 223long sys32_mmap2(struct mmap_arg_struct_emu31 __user *arg);
223long sys32_read(unsigned int fd, char __user * buf, size_t count); 224long sys32_read(unsigned int fd, char __user * buf, size_t count);
224long sys32_write(unsigned int fd, char __user * buf, size_t count); 225long sys32_write(unsigned int fd, char __user * buf, size_t count);
225long sys32_clone(void);
226long sys32_fadvise64(int fd, loff_t offset, size_t len, int advise); 226long sys32_fadvise64(int fd, loff_t offset, size_t len, int advise);
227long sys32_fadvise64_64(struct fadvise64_64_args __user *args); 227long sys32_fadvise64_64(struct fadvise64_64_args __user *args);
228long sys32_sigaction(int sig, const struct old_sigaction32 __user *act, 228long sys32_sigaction(int sig, const struct old_sigaction32 __user *act,
diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S
index 88a83366819f..682fb69dba21 100644
--- a/arch/s390/kernel/compat_wrapper.S
+++ b/arch/s390/kernel/compat_wrapper.S
@@ -568,18 +568,18 @@ compat_sys_sigprocmask_wrapper:
568 llgtr %r4,%r4 # compat_old_sigset_t * 568 llgtr %r4,%r4 # compat_old_sigset_t *
569 jg compat_sys_sigprocmask # branch to system call 569 jg compat_sys_sigprocmask # branch to system call
570 570
571 .globl sys32_init_module_wrapper 571 .globl sys_init_module_wrapper
572sys32_init_module_wrapper: 572sys_init_module_wrapper:
573 llgtr %r2,%r2 # void * 573 llgtr %r2,%r2 # void *
574 llgfr %r3,%r3 # unsigned long 574 llgfr %r3,%r3 # unsigned long
575 llgtr %r4,%r4 # char * 575 llgtr %r4,%r4 # char *
576 jg sys32_init_module # branch to system call 576 jg sys_init_module # branch to system call
577 577
578 .globl sys32_delete_module_wrapper 578 .globl sys_delete_module_wrapper
579sys32_delete_module_wrapper: 579sys_delete_module_wrapper:
580 llgtr %r2,%r2 # const char * 580 llgtr %r2,%r2 # const char *
581 llgfr %r3,%r3 # unsigned int 581 llgfr %r3,%r3 # unsigned int
582 jg sys32_delete_module # branch to system call 582 jg sys_delete_module # branch to system call
583 583
584 .globl sys32_quotactl_wrapper 584 .globl sys32_quotactl_wrapper
585sys32_quotactl_wrapper: 585sys32_quotactl_wrapper:
@@ -1832,11 +1832,26 @@ compat_sys_rt_tgsigqueueinfo_wrapper:
1832 llgtr %r5,%r5 # struct compat_siginfo * 1832 llgtr %r5,%r5 # struct compat_siginfo *
1833 jg compat_sys_rt_tgsigqueueinfo_wrapper # branch to system call 1833 jg compat_sys_rt_tgsigqueueinfo_wrapper # branch to system call
1834 1834
1835 .globl sys_perf_counter_open_wrapper 1835 .globl sys_perf_event_open_wrapper
1836sys_perf_counter_open_wrapper: 1836sys_perf_event_open_wrapper:
1837 llgtr %r2,%r2 # const struct perf_counter_attr * 1837 llgtr %r2,%r2 # const struct perf_event_attr *
1838 lgfr %r3,%r3 # pid_t 1838 lgfr %r3,%r3 # pid_t
1839 lgfr %r4,%r4 # int 1839 lgfr %r4,%r4 # int
1840 lgfr %r5,%r5 # int 1840 lgfr %r5,%r5 # int
1841 llgfr %r6,%r6 # unsigned long 1841 llgfr %r6,%r6 # unsigned long
1842 jg sys_perf_counter_open # branch to system call 1842 jg sys_perf_event_open # branch to system call
1843
1844 .globl sys_clone_wrapper
1845sys_clone_wrapper:
1846 llgfr %r2,%r2 # unsigned long
1847 llgfr %r3,%r3 # unsigned long
1848 llgtr %r4,%r4 # int *
1849 llgtr %r5,%r5 # int *
1850 jg sys_clone # branch to system call
1851
1852 .globl sys32_execve_wrapper
1853sys32_execve_wrapper:
1854 llgtr %r2,%r2 # char *
1855 llgtr %r3,%r3 # compat_uptr_t *
1856 llgtr %r4,%r4 # compat_uptr_t *
1857 jg sys32_execve # branch to system call
diff --git a/arch/s390/kernel/debug.c b/arch/s390/kernel/debug.c
index 4c512561687d..20f282c911c2 100644
--- a/arch/s390/kernel/debug.c
+++ b/arch/s390/kernel/debug.c
@@ -881,11 +881,11 @@ static int debug_active=1;
881 * if debug_active is already off 881 * if debug_active is already off
882 */ 882 */
883static int 883static int
884s390dbf_procactive(ctl_table *table, int write, struct file *filp, 884s390dbf_procactive(ctl_table *table, int write,
885 void __user *buffer, size_t *lenp, loff_t *ppos) 885 void __user *buffer, size_t *lenp, loff_t *ppos)
886{ 886{
887 if (!write || debug_stoppable || !debug_active) 887 if (!write || debug_stoppable || !debug_active)
888 return proc_dointvec(table, write, filp, buffer, lenp, ppos); 888 return proc_dointvec(table, write, buffer, lenp, ppos);
889 else 889 else
890 return 0; 890 return 0;
891} 891}
diff --git a/arch/s390/kernel/entry.h b/arch/s390/kernel/entry.h
index 950c59c6688b..e1e5e767ab56 100644
--- a/arch/s390/kernel/entry.h
+++ b/arch/s390/kernel/entry.h
@@ -42,10 +42,12 @@ long sys_s390_fadvise64_64(struct fadvise64_64_args __user *args);
42long sys_s390_fallocate(int fd, int mode, loff_t offset, u32 len_high, 42long sys_s390_fallocate(int fd, int mode, loff_t offset, u32 len_high,
43 u32 len_low); 43 u32 len_low);
44long sys_fork(void); 44long sys_fork(void);
45long sys_clone(void); 45long sys_clone(unsigned long newsp, unsigned long clone_flags,
46 int __user *parent_tidptr, int __user *child_tidptr);
46long sys_vfork(void); 47long sys_vfork(void);
47void execve_tail(void); 48void execve_tail(void);
48long sys_execve(void); 49long sys_execve(char __user *name, char __user * __user *argv,
50 char __user * __user *envp);
49long sys_sigsuspend(int history0, int history1, old_sigset_t mask); 51long sys_sigsuspend(int history0, int history1, old_sigset_t mask);
50long sys_sigaction(int sig, const struct old_sigaction __user *act, 52long sys_sigaction(int sig, const struct old_sigaction __user *act,
51 struct old_sigaction __user *oact); 53 struct old_sigaction __user *oact);
diff --git a/arch/s390/kernel/init_task.c b/arch/s390/kernel/init_task.c
index fe787f9e5f3f..4d1c9fb0b540 100644
--- a/arch/s390/kernel/init_task.c
+++ b/arch/s390/kernel/init_task.c
@@ -25,9 +25,8 @@ static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
25 * way process stacks are handled. This is done by having a special 25 * way process stacks are handled. This is done by having a special
26 * "init_task" linker map entry.. 26 * "init_task" linker map entry..
27 */ 27 */
28union thread_union init_thread_union 28union thread_union init_thread_union __init_task_data =
29 __attribute__((__section__(".data.init_task"))) = 29 { INIT_THREAD_INFO(init_task) };
30 { INIT_THREAD_INFO(init_task) };
31 30
32/* 31/*
33 * Initial task structure. 32 * Initial task structure.
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index 5a43f27eec13..5417eb57271a 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -27,11 +27,11 @@
27#include <linux/init.h> 27#include <linux/init.h>
28#include <linux/module.h> 28#include <linux/module.h>
29#include <linux/notifier.h> 29#include <linux/notifier.h>
30#include <linux/utsname.h>
31#include <linux/tick.h> 30#include <linux/tick.h>
32#include <linux/elfcore.h> 31#include <linux/elfcore.h>
33#include <linux/kernel_stat.h> 32#include <linux/kernel_stat.h>
34#include <linux/syscalls.h> 33#include <linux/syscalls.h>
34#include <linux/compat.h>
35#include <asm/compat.h> 35#include <asm/compat.h>
36#include <asm/uaccess.h> 36#include <asm/uaccess.h>
37#include <asm/pgtable.h> 37#include <asm/pgtable.h>
@@ -230,17 +230,11 @@ SYSCALL_DEFINE0(fork)
230 return do_fork(SIGCHLD, regs->gprs[15], regs, 0, NULL, NULL); 230 return do_fork(SIGCHLD, regs->gprs[15], regs, 0, NULL, NULL);
231} 231}
232 232
233SYSCALL_DEFINE0(clone) 233SYSCALL_DEFINE4(clone, unsigned long, newsp, unsigned long, clone_flags,
234 int __user *, parent_tidptr, int __user *, child_tidptr)
234{ 235{
235 struct pt_regs *regs = task_pt_regs(current); 236 struct pt_regs *regs = task_pt_regs(current);
236 unsigned long clone_flags;
237 unsigned long newsp;
238 int __user *parent_tidptr, *child_tidptr;
239 237
240 clone_flags = regs->gprs[3];
241 newsp = regs->orig_gpr2;
242 parent_tidptr = (int __user *) regs->gprs[4];
243 child_tidptr = (int __user *) regs->gprs[5];
244 if (!newsp) 238 if (!newsp)
245 newsp = regs->gprs[15]; 239 newsp = regs->gprs[15];
246 return do_fork(clone_flags, newsp, regs, 0, 240 return do_fork(clone_flags, newsp, regs, 0,
@@ -274,30 +268,25 @@ asmlinkage void execve_tail(void)
274/* 268/*
275 * sys_execve() executes a new program. 269 * sys_execve() executes a new program.
276 */ 270 */
277SYSCALL_DEFINE0(execve) 271SYSCALL_DEFINE3(execve, char __user *, name, char __user * __user *, argv,
272 char __user * __user *, envp)
278{ 273{
279 struct pt_regs *regs = task_pt_regs(current); 274 struct pt_regs *regs = task_pt_regs(current);
280 char *filename; 275 char *filename;
281 unsigned long result; 276 long rc;
282 int rc;
283 277
284 filename = getname((char __user *) regs->orig_gpr2); 278 filename = getname(name);
285 if (IS_ERR(filename)) { 279 rc = PTR_ERR(filename);
286 result = PTR_ERR(filename); 280 if (IS_ERR(filename))
281 return rc;
282 rc = do_execve(filename, argv, envp, regs);
283 if (rc)
287 goto out; 284 goto out;
288 }
289 rc = do_execve(filename, (char __user * __user *) regs->gprs[3],
290 (char __user * __user *) regs->gprs[4], regs);
291 if (rc) {
292 result = rc;
293 goto out_putname;
294 }
295 execve_tail(); 285 execve_tail();
296 result = regs->gprs[2]; 286 rc = regs->gprs[2];
297out_putname:
298 putname(filename);
299out: 287out:
300 return result; 288 putname(filename);
289 return rc;
301} 290}
302 291
303/* 292/*
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index f3ddd7ac06c5..a8738676b26c 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -339,24 +339,10 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
339 int copied, ret; 339 int copied, ret;
340 340
341 switch (request) { 341 switch (request) {
342 case PTRACE_PEEKTEXT:
343 case PTRACE_PEEKDATA:
344 /* Remove high order bit from address (only for 31 bit). */
345 addr &= PSW_ADDR_INSN;
346 /* read word at location addr. */
347 return generic_ptrace_peekdata(child, addr, data);
348
349 case PTRACE_PEEKUSR: 342 case PTRACE_PEEKUSR:
350 /* read the word at location addr in the USER area. */ 343 /* read the word at location addr in the USER area. */
351 return peek_user(child, addr, data); 344 return peek_user(child, addr, data);
352 345
353 case PTRACE_POKETEXT:
354 case PTRACE_POKEDATA:
355 /* Remove high order bit from address (only for 31 bit). */
356 addr &= PSW_ADDR_INSN;
357 /* write the word at location addr. */
358 return generic_ptrace_pokedata(child, addr, data);
359
360 case PTRACE_POKEUSR: 346 case PTRACE_POKEUSR:
361 /* write the word at location addr in the USER area */ 347 /* write the word at location addr in the USER area */
362 return poke_user(child, addr, data); 348 return poke_user(child, addr, data);
@@ -386,8 +372,11 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
386 copied += sizeof(unsigned long); 372 copied += sizeof(unsigned long);
387 } 373 }
388 return 0; 374 return 0;
375 default:
376 /* Removing high order bit from addr (only for 31 bit). */
377 addr &= PSW_ADDR_INSN;
378 return ptrace_request(child, request, addr, data);
389 } 379 }
390 return ptrace_request(child, request, addr, data);
391} 380}
392 381
393#ifdef CONFIG_COMPAT 382#ifdef CONFIG_COMPAT
diff --git a/arch/s390/kernel/sclp.S b/arch/s390/kernel/sclp.S
index 20639dfe0c42..e27ca63076d1 100644
--- a/arch/s390/kernel/sclp.S
+++ b/arch/s390/kernel/sclp.S
@@ -24,8 +24,6 @@ LC_EXT_INT_CODE = 0x86 # addr of ext int code
24# R3 = external interruption parameter if R2=0 24# R3 = external interruption parameter if R2=0
25# 25#
26 26
27.section ".init.text","ax"
28
29_sclp_wait_int: 27_sclp_wait_int:
30 stm %r6,%r15,24(%r15) # save registers 28 stm %r6,%r15,24(%r15) # save registers
31 basr %r13,0 # get base register 29 basr %r13,0 # get base register
@@ -318,9 +316,8 @@ _sclp_print_early:
318 .long _sclp_work_area 316 .long _sclp_work_area
319.Lascebc: 317.Lascebc:
320 .long _ascebc 318 .long _ascebc
321.previous
322 319
323.section ".init.data","a" 320.section .data,"aw",@progbits
324 .balign 4096 321 .balign 4096
325_sclp_work_area: 322_sclp_work_area:
326 .fill 4096 323 .fill 4096
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 56c16876b919..c932caa5e850 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -147,11 +147,11 @@ static void smp_ext_bitcall(int cpu, ec_bit_sig sig)
147 udelay(10); 147 udelay(10);
148} 148}
149 149
150void arch_send_call_function_ipi(cpumask_t mask) 150void arch_send_call_function_ipi_mask(const struct cpumask *mask)
151{ 151{
152 int cpu; 152 int cpu;
153 153
154 for_each_cpu_mask(cpu, mask) 154 for_each_cpu(cpu, mask)
155 smp_ext_bitcall(cpu, ec_call_function); 155 smp_ext_bitcall(cpu, ec_call_function);
156} 156}
157 157
@@ -475,10 +475,8 @@ static int __cpuinit smp_alloc_lowcore(int cpu)
475{ 475{
476 unsigned long async_stack, panic_stack; 476 unsigned long async_stack, panic_stack;
477 struct _lowcore *lowcore; 477 struct _lowcore *lowcore;
478 int lc_order;
479 478
480 lc_order = sizeof(long) == 8 ? 1 : 0; 479 lowcore = (void *) __get_free_pages(GFP_KERNEL | GFP_DMA, LC_ORDER);
481 lowcore = (void *) __get_free_pages(GFP_KERNEL | GFP_DMA, lc_order);
482 if (!lowcore) 480 if (!lowcore)
483 return -ENOMEM; 481 return -ENOMEM;
484 async_stack = __get_free_pages(GFP_KERNEL, ASYNC_ORDER); 482 async_stack = __get_free_pages(GFP_KERNEL, ASYNC_ORDER);
@@ -509,16 +507,14 @@ static int __cpuinit smp_alloc_lowcore(int cpu)
509out: 507out:
510 free_page(panic_stack); 508 free_page(panic_stack);
511 free_pages(async_stack, ASYNC_ORDER); 509 free_pages(async_stack, ASYNC_ORDER);
512 free_pages((unsigned long) lowcore, lc_order); 510 free_pages((unsigned long) lowcore, LC_ORDER);
513 return -ENOMEM; 511 return -ENOMEM;
514} 512}
515 513
516static void smp_free_lowcore(int cpu) 514static void smp_free_lowcore(int cpu)
517{ 515{
518 struct _lowcore *lowcore; 516 struct _lowcore *lowcore;
519 int lc_order;
520 517
521 lc_order = sizeof(long) == 8 ? 1 : 0;
522 lowcore = lowcore_ptr[cpu]; 518 lowcore = lowcore_ptr[cpu];
523#ifndef CONFIG_64BIT 519#ifndef CONFIG_64BIT
524 if (MACHINE_HAS_IEEE) 520 if (MACHINE_HAS_IEEE)
@@ -528,7 +524,7 @@ static void smp_free_lowcore(int cpu)
528#endif 524#endif
529 free_page(lowcore->panic_stack - PAGE_SIZE); 525 free_page(lowcore->panic_stack - PAGE_SIZE);
530 free_pages(lowcore->async_stack - ASYNC_SIZE, ASYNC_ORDER); 526 free_pages(lowcore->async_stack - ASYNC_SIZE, ASYNC_ORDER);
531 free_pages((unsigned long) lowcore, lc_order); 527 free_pages((unsigned long) lowcore, LC_ORDER);
532 lowcore_ptr[cpu] = NULL; 528 lowcore_ptr[cpu] = NULL;
533} 529}
534 530
@@ -664,7 +660,6 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
664 unsigned long async_stack, panic_stack; 660 unsigned long async_stack, panic_stack;
665 struct _lowcore *lowcore; 661 struct _lowcore *lowcore;
666 unsigned int cpu; 662 unsigned int cpu;
667 int lc_order;
668 663
669 smp_detect_cpus(); 664 smp_detect_cpus();
670 665
@@ -674,8 +669,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
674 print_cpu_info(); 669 print_cpu_info();
675 670
676 /* Reallocate current lowcore, but keep its contents. */ 671 /* Reallocate current lowcore, but keep its contents. */
677 lc_order = sizeof(long) == 8 ? 1 : 0; 672 lowcore = (void *) __get_free_pages(GFP_KERNEL | GFP_DMA, LC_ORDER);
678 lowcore = (void *) __get_free_pages(GFP_KERNEL | GFP_DMA, lc_order);
679 panic_stack = __get_free_page(GFP_KERNEL); 673 panic_stack = __get_free_page(GFP_KERNEL);
680 async_stack = __get_free_pages(GFP_KERNEL, ASYNC_ORDER); 674 async_stack = __get_free_pages(GFP_KERNEL, ASYNC_ORDER);
681 BUG_ON(!lowcore || !panic_stack || !async_stack); 675 BUG_ON(!lowcore || !panic_stack || !async_stack);
@@ -1047,42 +1041,6 @@ out:
1047static SYSDEV_CLASS_ATTR(dispatching, 0644, dispatching_show, 1041static SYSDEV_CLASS_ATTR(dispatching, 0644, dispatching_show,
1048 dispatching_store); 1042 dispatching_store);
1049 1043
1050/*
1051 * If the resume kernel runs on another cpu than the suspended kernel,
1052 * we have to switch the cpu IDs in the logical map.
1053 */
1054void smp_switch_boot_cpu_in_resume(u32 resume_phys_cpu_id,
1055 struct _lowcore *suspend_lowcore)
1056{
1057 int cpu, suspend_cpu_id, resume_cpu_id;
1058 u32 suspend_phys_cpu_id;
1059
1060 suspend_phys_cpu_id = __cpu_logical_map[suspend_lowcore->cpu_nr];
1061 suspend_cpu_id = suspend_lowcore->cpu_nr;
1062
1063 for_each_present_cpu(cpu) {
1064 if (__cpu_logical_map[cpu] == resume_phys_cpu_id) {
1065 resume_cpu_id = cpu;
1066 goto found;
1067 }
1068 }
1069 panic("Could not find resume cpu in logical map.\n");
1070
1071found:
1072 printk("Resume cpu ID: %i/%i\n", resume_phys_cpu_id, resume_cpu_id);
1073 printk("Suspend cpu ID: %i/%i\n", suspend_phys_cpu_id, suspend_cpu_id);
1074
1075 __cpu_logical_map[resume_cpu_id] = suspend_phys_cpu_id;
1076 __cpu_logical_map[suspend_cpu_id] = resume_phys_cpu_id;
1077
1078 lowcore_ptr[suspend_cpu_id]->cpu_addr = resume_phys_cpu_id;
1079}
1080
1081u32 smp_get_phys_cpu_id(void)
1082{
1083 return __cpu_logical_map[smp_processor_id()];
1084}
1085
1086static int __init topology_init(void) 1044static int __init topology_init(void)
1087{ 1045{
1088 int cpu; 1046 int cpu;
diff --git a/arch/s390/kernel/suspend.c b/arch/s390/kernel/suspend.c
index 086bee970cae..cf9e5c6d5527 100644
--- a/arch/s390/kernel/suspend.c
+++ b/arch/s390/kernel/suspend.c
@@ -6,36 +6,26 @@
6 * Author(s): Hans-Joachim Picht <hans@linux.vnet.ibm.com> 6 * Author(s): Hans-Joachim Picht <hans@linux.vnet.ibm.com>
7 */ 7 */
8 8
9#include <linux/suspend.h>
10#include <linux/reboot.h>
11#include <linux/pfn.h> 9#include <linux/pfn.h>
12#include <linux/mm.h>
13#include <asm/sections.h>
14#include <asm/system.h> 10#include <asm/system.h>
15#include <asm/ipl.h>
16 11
17/* 12/*
18 * References to section boundaries 13 * References to section boundaries
19 */ 14 */
20extern const void __nosave_begin, __nosave_end; 15extern const void __nosave_begin, __nosave_end;
21 16
22/*
23 * check if given pfn is in the 'nosave' or in the read only NSS section
24 */
25int pfn_is_nosave(unsigned long pfn) 17int pfn_is_nosave(unsigned long pfn)
26{ 18{
27 unsigned long nosave_begin_pfn = __pa(&__nosave_begin) >> PAGE_SHIFT; 19 unsigned long nosave_begin_pfn = PFN_DOWN(__pa(&__nosave_begin));
28 unsigned long nosave_end_pfn = PAGE_ALIGN(__pa(&__nosave_end)) 20 unsigned long nosave_end_pfn = PFN_DOWN(__pa(&__nosave_end));
29 >> PAGE_SHIFT;
30 unsigned long eshared_pfn = PFN_DOWN(__pa(&_eshared)) - 1;
31 unsigned long stext_pfn = PFN_DOWN(__pa(&_stext));
32 21
22 /* Always save lowcore pages (LC protection might be enabled). */
23 if (pfn <= LC_PAGES)
24 return 0;
33 if (pfn >= nosave_begin_pfn && pfn < nosave_end_pfn) 25 if (pfn >= nosave_begin_pfn && pfn < nosave_end_pfn)
34 return 1; 26 return 1;
35 if (pfn >= stext_pfn && pfn <= eshared_pfn) { 27 /* Skip memory holes and read-only pages (NSS, DCSS, ...). */
36 if (ipl_info.type == IPL_TYPE_NSS) 28 if (tprot(PFN_PHYS(pfn)))
37 return 1;
38 } else if ((tprot(pfn * PAGE_SIZE) && pfn > 0))
39 return 1; 29 return 1;
40 return 0; 30 return 0;
41} 31}
diff --git a/arch/s390/kernel/swsusp_asm64.S b/arch/s390/kernel/swsusp_asm64.S
index 7cd6b096f0d1..fe927d0bc20b 100644
--- a/arch/s390/kernel/swsusp_asm64.S
+++ b/arch/s390/kernel/swsusp_asm64.S
@@ -9,6 +9,7 @@
9 9
10#include <asm/page.h> 10#include <asm/page.h>
11#include <asm/ptrace.h> 11#include <asm/ptrace.h>
12#include <asm/thread_info.h>
12#include <asm/asm-offsets.h> 13#include <asm/asm-offsets.h>
13 14
14/* 15/*
@@ -41,6 +42,9 @@ swsusp_arch_suspend:
41 /* Get pointer to save area */ 42 /* Get pointer to save area */
42 lghi %r1,0x1000 43 lghi %r1,0x1000
43 44
45 /* Save CPU address */
46 stap __LC_CPU_ADDRESS(%r1)
47
44 /* Store registers */ 48 /* Store registers */
45 mvc 0x318(4,%r1),__SF_EMPTY(%r15) /* move prefix to lowcore */ 49 mvc 0x318(4,%r1),__SF_EMPTY(%r15) /* move prefix to lowcore */
46 stfpc 0x31c(%r1) /* store fpu control */ 50 stfpc 0x31c(%r1) /* store fpu control */
@@ -102,11 +106,10 @@ swsusp_arch_resume:
102 aghi %r15,-STACK_FRAME_OVERHEAD 106 aghi %r15,-STACK_FRAME_OVERHEAD
103 stg %r1,__SF_BACKCHAIN(%r15) 107 stg %r1,__SF_BACKCHAIN(%r15)
104 108
105#ifdef CONFIG_SMP 109 /* Make all free pages stable */
106 /* Save boot cpu number */ 110 lghi %r2,1
107 brasl %r14,smp_get_phys_cpu_id 111 brasl %r14,arch_set_page_states
108 lgr %r10,%r2 112
109#endif
110 /* Deactivate DAT */ 113 /* Deactivate DAT */
111 stnsm __SF_EMPTY(%r15),0xfb 114 stnsm __SF_EMPTY(%r15),0xfb
112 115
@@ -133,6 +136,69 @@ swsusp_arch_resume:
1332: 1362:
134 ptlb /* flush tlb */ 137 ptlb /* flush tlb */
135 138
139 /* Reset System */
140 larl %r1,restart_entry
141 larl %r2,.Lrestart_diag308_psw
142 og %r1,0(%r2)
143 stg %r1,0(%r0)
144 larl %r1,.Lnew_pgm_check_psw
145 epsw %r2,%r3
146 stm %r2,%r3,0(%r1)
147 mvc __LC_PGM_NEW_PSW(16,%r0),0(%r1)
148 lghi %r0,0
149 diag %r0,%r0,0x308
150restart_entry:
151 lhi %r1,1
152 sigp %r1,%r0,0x12
153 sam64
154 larl %r1,.Lnew_pgm_check_psw
155 lpswe 0(%r1)
156pgm_check_entry:
157
158 /* Switch to original suspend CPU */
159 larl %r1,.Lresume_cpu /* Resume CPU address: r2 */
160 stap 0(%r1)
161 llgh %r2,0(%r1)
162 lghi %r3,0x1000
163 llgh %r1,__LC_CPU_ADDRESS(%r3) /* Suspend CPU address: r1 */
164 cgr %r1,%r2
165 je restore_registers /* r1 = r2 -> nothing to do */
166 larl %r4,.Lrestart_suspend_psw /* Set new restart PSW */
167 mvc __LC_RESTART_PSW(16,%r0),0(%r4)
1683:
169 sigp %r9,%r1,__SIGP_INITIAL_CPU_RESET
170 brc 8,4f /* accepted */
171 brc 2,3b /* busy, try again */
172
173 /* Suspend CPU not available -> panic */
174 larl %r15,init_thread_union
175 ahi %r15,1<<(PAGE_SHIFT+THREAD_ORDER)
176 larl %r2,.Lpanic_string
177 larl %r3,_sclp_print_early
178 lghi %r1,0
179 sam31
180 sigp %r1,%r0,0x12
181 basr %r14,%r3
182 larl %r3,.Ldisabled_wait_31
183 lpsw 0(%r3)
1844:
185 /* Switch to suspend CPU */
186 sigp %r9,%r1,__SIGP_RESTART /* start suspend CPU */
187 brc 2,4b /* busy, try again */
1885:
189 sigp %r9,%r2,__SIGP_STOP /* stop resume (current) CPU */
1906: j 6b
191
192restart_suspend:
193 larl %r1,.Lresume_cpu
194 llgh %r2,0(%r1)
1957:
196 sigp %r9,%r2,__SIGP_SENSE /* Wait for resume CPU */
197 brc 2,7b /* busy, try again */
198 tmll %r9,0x40 /* Test if resume CPU is stopped */
199 jz 7b
200
201restore_registers:
136 /* Restore registers */ 202 /* Restore registers */
137 lghi %r13,0x1000 /* %r1 = pointer to save arae */ 203 lghi %r13,0x1000 /* %r1 = pointer to save arae */
138 204
@@ -166,19 +232,33 @@ swsusp_arch_resume:
166 /* Pointer to save area */ 232 /* Pointer to save area */
167 lghi %r13,0x1000 233 lghi %r13,0x1000
168 234
169#ifdef CONFIG_SMP
170 /* Switch CPUs */
171 lgr %r2,%r10 /* get cpu id */
172 llgf %r3,0x318(%r13)
173 brasl %r14,smp_switch_boot_cpu_in_resume
174#endif
175 /* Restore prefix register */ 235 /* Restore prefix register */
176 spx 0x318(%r13) 236 spx 0x318(%r13)
177 237
178 /* Activate DAT */ 238 /* Activate DAT */
179 stosm __SF_EMPTY(%r15),0x04 239 stosm __SF_EMPTY(%r15),0x04
180 240
241 /* Make all free pages unstable */
242 lghi %r2,0
243 brasl %r14,arch_set_page_states
244
181 /* Return 0 */ 245 /* Return 0 */
182 lmg %r6,%r15,STACK_FRAME_OVERHEAD + __SF_GPRS(%r15) 246 lmg %r6,%r15,STACK_FRAME_OVERHEAD + __SF_GPRS(%r15)
183 lghi %r2,0 247 lghi %r2,0
184 br %r14 248 br %r14
249
250 .section .data.nosave,"aw",@progbits
251 .align 8
252.Ldisabled_wait_31:
253 .long 0x000a0000,0x00000000
254.Lpanic_string:
255 .asciz "Resume not possible because suspend CPU is no longer available"
256 .align 8
257.Lrestart_diag308_psw:
258 .long 0x00080000,0x80000000
259.Lrestart_suspend_psw:
260 .quad 0x0000000180000000,restart_suspend
261.Lnew_pgm_check_psw:
262 .quad 0,pgm_check_entry
263.Lresume_cpu:
264 .byte 0,0
diff --git a/arch/s390/kernel/sys_s390.c b/arch/s390/kernel/sys_s390.c
index c7ae4b17e0e3..e9d94f61d500 100644
--- a/arch/s390/kernel/sys_s390.c
+++ b/arch/s390/kernel/sys_s390.c
@@ -29,7 +29,6 @@
29#include <linux/personality.h> 29#include <linux/personality.h>
30#include <linux/unistd.h> 30#include <linux/unistd.h>
31#include <linux/ipc.h> 31#include <linux/ipc.h>
32#include <linux/syscalls.h>
33#include <asm/uaccess.h> 32#include <asm/uaccess.h>
34#include "entry.h" 33#include "entry.h"
35 34
diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
index ad1acd200385..30eca070d426 100644
--- a/arch/s390/kernel/syscalls.S
+++ b/arch/s390/kernel/syscalls.S
@@ -19,7 +19,7 @@ SYSCALL(sys_restart_syscall,sys_restart_syscall,sys_restart_syscall)
19SYSCALL(sys_creat,sys_creat,sys32_creat_wrapper) 19SYSCALL(sys_creat,sys_creat,sys32_creat_wrapper)
20SYSCALL(sys_link,sys_link,sys32_link_wrapper) 20SYSCALL(sys_link,sys_link,sys32_link_wrapper)
21SYSCALL(sys_unlink,sys_unlink,sys32_unlink_wrapper) /* 10 */ 21SYSCALL(sys_unlink,sys_unlink,sys32_unlink_wrapper) /* 10 */
22SYSCALL(sys_execve,sys_execve,sys32_execve) 22SYSCALL(sys_execve,sys_execve,sys32_execve_wrapper)
23SYSCALL(sys_chdir,sys_chdir,sys32_chdir_wrapper) 23SYSCALL(sys_chdir,sys_chdir,sys32_chdir_wrapper)
24SYSCALL(sys_time,sys_ni_syscall,sys32_time_wrapper) /* old time syscall */ 24SYSCALL(sys_time,sys_ni_syscall,sys32_time_wrapper) /* old time syscall */
25SYSCALL(sys_mknod,sys_mknod,sys32_mknod_wrapper) 25SYSCALL(sys_mknod,sys_mknod,sys32_mknod_wrapper)
@@ -128,7 +128,7 @@ SYSCALL(sys_sysinfo,sys_sysinfo,compat_sys_sysinfo_wrapper)
128SYSCALL(sys_ipc,sys_ipc,sys32_ipc_wrapper) 128SYSCALL(sys_ipc,sys_ipc,sys32_ipc_wrapper)
129SYSCALL(sys_fsync,sys_fsync,sys32_fsync_wrapper) 129SYSCALL(sys_fsync,sys_fsync,sys32_fsync_wrapper)
130SYSCALL(sys_sigreturn,sys_sigreturn,sys32_sigreturn) 130SYSCALL(sys_sigreturn,sys_sigreturn,sys32_sigreturn)
131SYSCALL(sys_clone,sys_clone,sys32_clone) /* 120 */ 131SYSCALL(sys_clone,sys_clone,sys_clone_wrapper) /* 120 */
132SYSCALL(sys_setdomainname,sys_setdomainname,sys32_setdomainname_wrapper) 132SYSCALL(sys_setdomainname,sys_setdomainname,sys32_setdomainname_wrapper)
133SYSCALL(sys_newuname,sys_s390_newuname,sys32_newuname_wrapper) 133SYSCALL(sys_newuname,sys_s390_newuname,sys32_newuname_wrapper)
134NI_SYSCALL /* modify_ldt for i386 */ 134NI_SYSCALL /* modify_ldt for i386 */
@@ -136,8 +136,8 @@ SYSCALL(sys_adjtimex,sys_adjtimex,compat_sys_adjtimex_wrapper)
136SYSCALL(sys_mprotect,sys_mprotect,sys32_mprotect_wrapper) /* 125 */ 136SYSCALL(sys_mprotect,sys_mprotect,sys32_mprotect_wrapper) /* 125 */
137SYSCALL(sys_sigprocmask,sys_sigprocmask,compat_sys_sigprocmask_wrapper) 137SYSCALL(sys_sigprocmask,sys_sigprocmask,compat_sys_sigprocmask_wrapper)
138NI_SYSCALL /* old "create module" */ 138NI_SYSCALL /* old "create module" */
139SYSCALL(sys_init_module,sys_init_module,sys32_init_module_wrapper) 139SYSCALL(sys_init_module,sys_init_module,sys_init_module_wrapper)
140SYSCALL(sys_delete_module,sys_delete_module,sys32_delete_module_wrapper) 140SYSCALL(sys_delete_module,sys_delete_module,sys_delete_module_wrapper)
141NI_SYSCALL /* 130: old get_kernel_syms */ 141NI_SYSCALL /* 130: old get_kernel_syms */
142SYSCALL(sys_quotactl,sys_quotactl,sys32_quotactl_wrapper) 142SYSCALL(sys_quotactl,sys_quotactl,sys32_quotactl_wrapper)
143SYSCALL(sys_getpgid,sys_getpgid,sys32_getpgid_wrapper) 143SYSCALL(sys_getpgid,sys_getpgid,sys32_getpgid_wrapper)
@@ -339,4 +339,4 @@ SYSCALL(sys_epoll_create1,sys_epoll_create1,sys_epoll_create1_wrapper)
339SYSCALL(sys_preadv,sys_preadv,compat_sys_preadv_wrapper) 339SYSCALL(sys_preadv,sys_preadv,compat_sys_preadv_wrapper)
340SYSCALL(sys_pwritev,sys_pwritev,compat_sys_pwritev_wrapper) 340SYSCALL(sys_pwritev,sys_pwritev,compat_sys_pwritev_wrapper)
341SYSCALL(sys_rt_tgsigqueueinfo,sys_rt_tgsigqueueinfo,compat_sys_rt_tgsigqueueinfo_wrapper) /* 330 */ 341SYSCALL(sys_rt_tgsigqueueinfo,sys_rt_tgsigqueueinfo,compat_sys_rt_tgsigqueueinfo_wrapper) /* 330 */
342SYSCALL(sys_perf_counter_open,sys_perf_counter_open,sys_perf_counter_open_wrapper) 342SYSCALL(sys_perf_event_open,sys_perf_event_open,sys_perf_event_open_wrapper)
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index e3dc28b8075d..34162a0b2caa 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -184,12 +184,14 @@ static void timing_alert_interrupt(__u16 code)
184static void etr_reset(void); 184static void etr_reset(void);
185static void stp_reset(void); 185static void stp_reset(void);
186 186
187unsigned long read_persistent_clock(void) 187void read_persistent_clock(struct timespec *ts)
188{ 188{
189 struct timespec ts; 189 tod_to_timeval(get_clock() - TOD_UNIX_EPOCH, ts);
190}
190 191
191 tod_to_timeval(get_clock() - TOD_UNIX_EPOCH, &ts); 192void read_boot_clock(struct timespec *ts)
192 return ts.tv_sec; 193{
194 tod_to_timeval(sched_clock_base_cc - TOD_UNIX_EPOCH, ts);
193} 195}
194 196
195static cycle_t read_tod_clock(struct clocksource *cs) 197static cycle_t read_tod_clock(struct clocksource *cs)
@@ -207,6 +209,10 @@ static struct clocksource clocksource_tod = {
207 .flags = CLOCK_SOURCE_IS_CONTINUOUS, 209 .flags = CLOCK_SOURCE_IS_CONTINUOUS,
208}; 210};
209 211
212struct clocksource * __init clocksource_default_clock(void)
213{
214 return &clocksource_tod;
215}
210 216
211void update_vsyscall(struct timespec *wall_time, struct clocksource *clock) 217void update_vsyscall(struct timespec *wall_time, struct clocksource *clock)
212{ 218{
@@ -244,10 +250,6 @@ void update_vsyscall_tz(void)
244 */ 250 */
245void __init time_init(void) 251void __init time_init(void)
246{ 252{
247 struct timespec ts;
248 unsigned long flags;
249 cycle_t now;
250
251 /* Reset time synchronization interfaces. */ 253 /* Reset time synchronization interfaces. */
252 etr_reset(); 254 etr_reset();
253 stp_reset(); 255 stp_reset();
@@ -263,26 +265,6 @@ void __init time_init(void)
263 if (clocksource_register(&clocksource_tod) != 0) 265 if (clocksource_register(&clocksource_tod) != 0)
264 panic("Could not register TOD clock source"); 266 panic("Could not register TOD clock source");
265 267
266 /*
267 * The TOD clock is an accurate clock. The xtime should be
268 * initialized in a way that the difference between TOD and
269 * xtime is reasonably small. Too bad that timekeeping_init
270 * sets xtime.tv_nsec to zero. In addition the clock source
271 * change from the jiffies clock source to the TOD clock
272 * source add another error of up to 1/HZ second. The same
273 * function sets wall_to_monotonic to a value that is too
274 * small for /proc/uptime to be accurate.
275 * Reset xtime and wall_to_monotonic to sane values.
276 */
277 write_seqlock_irqsave(&xtime_lock, flags);
278 now = get_clock();
279 tod_to_timeval(now - TOD_UNIX_EPOCH, &xtime);
280 clocksource_tod.cycle_last = now;
281 clocksource_tod.raw_time = xtime;
282 tod_to_timeval(sched_clock_base_cc - TOD_UNIX_EPOCH, &ts);
283 set_normalized_timespec(&wall_to_monotonic, -ts.tv_sec, -ts.tv_nsec);
284 write_sequnlock_irqrestore(&xtime_lock, flags);
285
286 /* Enable TOD clock interrupts on the boot cpu. */ 268 /* Enable TOD clock interrupts on the boot cpu. */
287 init_cpu_timer(); 269 init_cpu_timer();
288 270
diff --git a/arch/s390/kernel/vdso.c b/arch/s390/kernel/vdso.c
index 45e1708b70fd..45a3e9a7ae21 100644
--- a/arch/s390/kernel/vdso.c
+++ b/arch/s390/kernel/vdso.c
@@ -75,7 +75,7 @@ __setup("vdso=", vdso_setup);
75static union { 75static union {
76 struct vdso_data data; 76 struct vdso_data data;
77 u8 page[PAGE_SIZE]; 77 u8 page[PAGE_SIZE];
78} vdso_data_store __attribute__((__section__(".data.page_aligned"))); 78} vdso_data_store __page_aligned_data;
79struct vdso_data *vdso_data = &vdso_data_store.data; 79struct vdso_data *vdso_data = &vdso_data_store.data;
80 80
81/* 81/*
diff --git a/arch/s390/kernel/vdso32/Makefile b/arch/s390/kernel/vdso32/Makefile
index ca78ad60ba24..d13e8755a8cc 100644
--- a/arch/s390/kernel/vdso32/Makefile
+++ b/arch/s390/kernel/vdso32/Makefile
@@ -13,7 +13,7 @@ KBUILD_AFLAGS_31 += -m31 -s
13KBUILD_CFLAGS_31 := $(filter-out -m64,$(KBUILD_CFLAGS)) 13KBUILD_CFLAGS_31 := $(filter-out -m64,$(KBUILD_CFLAGS))
14KBUILD_CFLAGS_31 += -m31 -fPIC -shared -fno-common -fno-builtin 14KBUILD_CFLAGS_31 += -m31 -fPIC -shared -fno-common -fno-builtin
15KBUILD_CFLAGS_31 += -nostdlib -Wl,-soname=linux-vdso32.so.1 \ 15KBUILD_CFLAGS_31 += -nostdlib -Wl,-soname=linux-vdso32.so.1 \
16 $(call ld-option, -Wl$(comma)--hash-style=sysv) 16 $(call cc-ldoption, -Wl$(comma)--hash-style=sysv)
17 17
18$(targets:%=$(obj)/%.dbg): KBUILD_CFLAGS = $(KBUILD_CFLAGS_31) 18$(targets:%=$(obj)/%.dbg): KBUILD_CFLAGS = $(KBUILD_CFLAGS_31)
19$(targets:%=$(obj)/%.dbg): KBUILD_AFLAGS = $(KBUILD_AFLAGS_31) 19$(targets:%=$(obj)/%.dbg): KBUILD_AFLAGS = $(KBUILD_AFLAGS_31)
diff --git a/arch/s390/kernel/vdso32/vdso32_wrapper.S b/arch/s390/kernel/vdso32/vdso32_wrapper.S
index 61639a89e70b..ae42f8ce350b 100644
--- a/arch/s390/kernel/vdso32/vdso32_wrapper.S
+++ b/arch/s390/kernel/vdso32/vdso32_wrapper.S
@@ -1,7 +1,8 @@
1#include <linux/init.h> 1#include <linux/init.h>
2#include <linux/linkage.h>
2#include <asm/page.h> 3#include <asm/page.h>
3 4
4 .section ".data.page_aligned" 5 __PAGE_ALIGNED_DATA
5 6
6 .globl vdso32_start, vdso32_end 7 .globl vdso32_start, vdso32_end
7 .balign PAGE_SIZE 8 .balign PAGE_SIZE
diff --git a/arch/s390/kernel/vdso64/Makefile b/arch/s390/kernel/vdso64/Makefile
index 6fc8e829258c..449352dda9cd 100644
--- a/arch/s390/kernel/vdso64/Makefile
+++ b/arch/s390/kernel/vdso64/Makefile
@@ -13,7 +13,7 @@ KBUILD_AFLAGS_64 += -m64 -s
13KBUILD_CFLAGS_64 := $(filter-out -m64,$(KBUILD_CFLAGS)) 13KBUILD_CFLAGS_64 := $(filter-out -m64,$(KBUILD_CFLAGS))
14KBUILD_CFLAGS_64 += -m64 -fPIC -shared -fno-common -fno-builtin 14KBUILD_CFLAGS_64 += -m64 -fPIC -shared -fno-common -fno-builtin
15KBUILD_CFLAGS_64 += -nostdlib -Wl,-soname=linux-vdso64.so.1 \ 15KBUILD_CFLAGS_64 += -nostdlib -Wl,-soname=linux-vdso64.so.1 \
16 $(call ld-option, -Wl$(comma)--hash-style=sysv) 16 $(call cc-ldoption, -Wl$(comma)--hash-style=sysv)
17 17
18$(targets:%=$(obj)/%.dbg): KBUILD_CFLAGS = $(KBUILD_CFLAGS_64) 18$(targets:%=$(obj)/%.dbg): KBUILD_CFLAGS = $(KBUILD_CFLAGS_64)
19$(targets:%=$(obj)/%.dbg): KBUILD_AFLAGS = $(KBUILD_AFLAGS_64) 19$(targets:%=$(obj)/%.dbg): KBUILD_AFLAGS = $(KBUILD_AFLAGS_64)
diff --git a/arch/s390/kernel/vdso64/vdso64_wrapper.S b/arch/s390/kernel/vdso64/vdso64_wrapper.S
index d8e2ac14d564..c245842b516f 100644
--- a/arch/s390/kernel/vdso64/vdso64_wrapper.S
+++ b/arch/s390/kernel/vdso64/vdso64_wrapper.S
@@ -1,7 +1,8 @@
1#include <linux/init.h> 1#include <linux/init.h>
2#include <linux/linkage.h>
2#include <asm/page.h> 3#include <asm/page.h>
3 4
4 .section ".data.page_aligned" 5 __PAGE_ALIGNED_DATA
5 6
6 .globl vdso64_start, vdso64_end 7 .globl vdso64_start, vdso64_end
7 .balign PAGE_SIZE 8 .balign PAGE_SIZE
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-27 10:36:34 -0500