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-rw-r--r--arch/s390/defconfig37
-rw-r--r--arch/s390/include/asm/lowcore.h9
-rw-r--r--arch/s390/include/asm/processor.h2
-rw-r--r--arch/s390/kernel/asm-offsets.c7
-rw-r--r--arch/s390/kernel/compat_linux.c83
-rw-r--r--arch/s390/kernel/compat_linux.h4
-rw-r--r--arch/s390/kernel/compat_wrapper.S27
-rw-r--r--arch/s390/kernel/entry.h6
-rw-r--r--arch/s390/kernel/process.c40
-rw-r--r--arch/s390/kernel/ptrace.c19
-rw-r--r--arch/s390/kernel/sclp.S5
-rw-r--r--arch/s390/kernel/smp.c50
-rw-r--r--arch/s390/kernel/suspend.c24
-rw-r--r--arch/s390/kernel/swsusp_asm64.S102
-rw-r--r--arch/s390/kernel/syscalls.S8
-rw-r--r--arch/s390/mm/page-states.c52
-rw-r--r--arch/s390/mm/pgtable.c17
17 files changed, 259 insertions, 233 deletions
diff --git a/arch/s390/defconfig b/arch/s390/defconfig
index 4e91a2573cc4..ab4464486b7a 100644
--- a/arch/s390/defconfig
+++ b/arch/s390/defconfig
@@ -1,7 +1,7 @@
#
# Automatically generated make config: don't edit
-# Linux kernel version: 2.6.30
-# Mon Jun 22 11:08:16 2009
+# Linux kernel version: 2.6.31
+# Tue Sep 22 17:43:13 2009
#
CONFIG_SCHED_MC=y
CONFIG_MMU=y
@@ -24,6 +24,7 @@ CONFIG_PGSTE=y
CONFIG_VIRT_CPU_ACCOUNTING=y
CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
CONFIG_S390=y
+CONFIG_SCHED_OMIT_FRAME_POINTER=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_CONSTRUCTORS=y
@@ -48,11 +49,12 @@ CONFIG_AUDIT=y
#
# RCU Subsystem
#
-CONFIG_CLASSIC_RCU=y
-# CONFIG_TREE_RCU is not set
-# CONFIG_PREEMPT_RCU is not set
+CONFIG_TREE_RCU=y
+# CONFIG_TREE_PREEMPT_RCU is not set
+# CONFIG_RCU_TRACE is not set
+CONFIG_RCU_FANOUT=64
+# CONFIG_RCU_FANOUT_EXACT is not set
# CONFIG_TREE_RCU_TRACE is not set
-# CONFIG_PREEMPT_RCU_TRACE is not set
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=17
@@ -103,11 +105,12 @@ CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
-CONFIG_HAVE_PERF_COUNTERS=y
+CONFIG_HAVE_PERF_EVENTS=y
#
-# Performance Counters
+# Kernel Performance Events And Counters
#
+# CONFIG_PERF_EVENTS is not set
# CONFIG_PERF_COUNTERS is not set
CONFIG_VM_EVENT_COUNTERS=y
# CONFIG_STRIP_ASM_SYMS is not set
@@ -116,7 +119,6 @@ CONFIG_SLAB=y
# CONFIG_SLUB is not set
# CONFIG_SLOB is not set
# CONFIG_PROFILING is not set
-# CONFIG_MARKERS is not set
CONFIG_HAVE_OPROFILE=y
CONFIG_KPROBES=y
CONFIG_HAVE_SYSCALL_WRAPPERS=y
@@ -176,6 +178,7 @@ CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
CONFIG_64BIT=y
+# CONFIG_KTIME_SCALAR is not set
CONFIG_SMP=y
CONFIG_NR_CPUS=32
CONFIG_HOTPLUG_CPU=y
@@ -257,7 +260,6 @@ CONFIG_FORCE_MAX_ZONEORDER=9
CONFIG_PFAULT=y
# CONFIG_SHARED_KERNEL is not set
# CONFIG_CMM is not set
-# CONFIG_PAGE_STATES is not set
# CONFIG_APPLDATA_BASE is not set
CONFIG_HZ_100=y
# CONFIG_HZ_250 is not set
@@ -280,6 +282,7 @@ CONFIG_PM_SLEEP_SMP=y
CONFIG_PM_SLEEP=y
CONFIG_HIBERNATION=y
CONFIG_PM_STD_PARTITION=""
+# CONFIG_PM_RUNTIME is not set
CONFIG_NET=y
#
@@ -394,6 +397,7 @@ CONFIG_IP_SCTP=m
# CONFIG_SCTP_HMAC_NONE is not set
# CONFIG_SCTP_HMAC_SHA1 is not set
CONFIG_SCTP_HMAC_MD5=y
+# CONFIG_RDS is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_BRIDGE is not set
@@ -487,6 +491,7 @@ CONFIG_CCW=y
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+# CONFIG_DEVTMPFS is not set
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
@@ -501,6 +506,7 @@ CONFIG_BLK_DEV=y
CONFIG_BLK_DEV_LOOP=m
# CONFIG_BLK_DEV_CRYPTOLOOP is not set
CONFIG_BLK_DEV_NBD=m
+# CONFIG_BLK_DEV_OSD is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=4096
@@ -594,8 +600,11 @@ CONFIG_BLK_DEV_DM=y
CONFIG_DM_CRYPT=y
CONFIG_DM_SNAPSHOT=y
CONFIG_DM_MIRROR=y
+# CONFIG_DM_LOG_USERSPACE is not set
CONFIG_DM_ZERO=y
CONFIG_DM_MULTIPATH=m
+# CONFIG_DM_MULTIPATH_QL is not set
+# CONFIG_DM_MULTIPATH_ST is not set
# CONFIG_DM_DELAY is not set
# CONFIG_DM_UEVENT is not set
CONFIG_NETDEVICES=y
@@ -615,7 +624,6 @@ CONFIG_NET_ETHERNET=y
# CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set
# CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set
# CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set
-# CONFIG_KS8842 is not set
CONFIG_NETDEV_1000=y
CONFIG_NETDEV_10000=y
# CONFIG_TR is not set
@@ -678,6 +686,7 @@ CONFIG_SCLP_CONSOLE=y
CONFIG_SCLP_VT220_TTY=y
CONFIG_SCLP_VT220_CONSOLE=y
CONFIG_SCLP_CPI=m
+CONFIG_SCLP_ASYNC=m
CONFIG_S390_TAPE=m
#
@@ -737,6 +746,7 @@ CONFIG_FS_POSIX_ACL=y
# CONFIG_GFS2_FS is not set
# CONFIG_OCFS2_FS is not set
# CONFIG_BTRFS_FS is not set
+# CONFIG_NILFS2_FS is not set
CONFIG_FILE_LOCKING=y
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
@@ -798,7 +808,6 @@ CONFIG_MISC_FILESYSTEMS=y
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
# CONFIG_EXOFS_FS is not set
-# CONFIG_NILFS2_FS is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
@@ -885,11 +894,13 @@ CONFIG_DEBUG_MEMORY_INIT=y
# CONFIG_DEBUG_LIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
+# CONFIG_DEBUG_CREDENTIALS is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_KPROBES_SANITY_TEST is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
+CONFIG_DEBUG_FORCE_WEAK_PER_CPU=y
# CONFIG_LKDTM is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_LATENCYTOP is not set
@@ -979,11 +990,13 @@ CONFIG_CRYPTO_PCBC=m
#
CONFIG_CRYPTO_HMAC=m
# CONFIG_CRYPTO_XCBC is not set
+CONFIG_CRYPTO_VMAC=m
#
# Digest
#
CONFIG_CRYPTO_CRC32C=m
+CONFIG_CRYPTO_GHASH=m
# CONFIG_CRYPTO_MD4 is not set
CONFIG_CRYPTO_MD5=m
# CONFIG_CRYPTO_MICHAEL_MIC is not set
diff --git a/arch/s390/include/asm/lowcore.h b/arch/s390/include/asm/lowcore.h
index 6bc9426a6fbf..f2ef4b619ce1 100644
--- a/arch/s390/include/asm/lowcore.h
+++ b/arch/s390/include/asm/lowcore.h
@@ -86,6 +86,7 @@
#define __LC_PGM_OLD_PSW 0x0150
#define __LC_MCK_OLD_PSW 0x0160
#define __LC_IO_OLD_PSW 0x0170
+#define __LC_RESTART_PSW 0x01a0
#define __LC_EXT_NEW_PSW 0x01b0
#define __LC_SVC_NEW_PSW 0x01c0
#define __LC_PGM_NEW_PSW 0x01d0
@@ -189,6 +190,14 @@ union save_area {
#define SAVE_AREA_BASE SAVE_AREA_BASE_S390X
#endif
+#ifndef __s390x__
+#define LC_ORDER 0
+#else
+#define LC_ORDER 1
+#endif
+
+#define LC_PAGES (1UL << LC_ORDER)
+
struct _lowcore
{
#ifndef __s390x__
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h
index cf8eed3fa779..b42715458312 100644
--- a/arch/s390/include/asm/processor.h
+++ b/arch/s390/include/asm/processor.h
@@ -295,7 +295,7 @@ static inline void ATTRIB_NORET disabled_wait(unsigned long code)
" oi 0x384(1),0x10\n"/* fake protection bit */
" lpswe 0(%1)"
: "=m" (ctl_buf)
- : "a" (&dw_psw), "a" (&ctl_buf), "m" (dw_psw) : "cc", "0");
+ : "a" (&dw_psw), "a" (&ctl_buf), "m" (dw_psw) : "cc", "0", "1");
#endif /* __s390x__ */
while (1);
}
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 @@
#include <linux/sched.h>
#include <linux/kbuild.h>
#include <asm/vdso.h>
+#include <asm/sigp.h>
int main(void)
{
@@ -59,6 +60,10 @@ int main(void)
DEFINE(CLOCK_REALTIME, CLOCK_REALTIME);
DEFINE(CLOCK_MONOTONIC, CLOCK_MONOTONIC);
DEFINE(CLOCK_REALTIME_RES, MONOTONIC_RES_NSEC);
-
+ /* constants for SIGP */
+ DEFINE(__SIGP_STOP, sigp_stop);
+ DEFINE(__SIGP_RESTART, sigp_restart);
+ DEFINE(__SIGP_SENSE, sigp_sense);
+ DEFINE(__SIGP_INITIAL_CPU_RESET, sigp_initial_cpu_reset);
return 0;
}
diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c
index 9ab188d67a3d..5519cb745106 100644
--- a/arch/s390/kernel/compat_linux.c
+++ b/arch/s390/kernel/compat_linux.c
@@ -443,66 +443,28 @@ sys32_rt_sigqueueinfo(int pid, int sig, compat_siginfo_t __user *uinfo)
* sys32_execve() executes a new program after the asm stub has set
* things up for us. This should basically do what I want it to.
*/
-asmlinkage long sys32_execve(void)
+asmlinkage long sys32_execve(char __user *name, compat_uptr_t __user *argv,
+ compat_uptr_t __user *envp)
{
struct pt_regs *regs = task_pt_regs(current);
char *filename;
- unsigned long result;
- int rc;
-
- filename = getname(compat_ptr(regs->orig_gpr2));
- if (IS_ERR(filename)) {
- result = PTR_ERR(filename);
- goto out;
- }
- rc = compat_do_execve(filename, compat_ptr(regs->gprs[3]),
- compat_ptr(regs->gprs[4]), regs);
- if (rc) {
- result = rc;
- goto out_putname;
- }
+ long rc;
+
+ filename = getname(name);
+ rc = PTR_ERR(filename);
+ if (IS_ERR(filename))
+ return rc;
+ rc = compat_do_execve(filename, argv, envp, regs);
+ if (rc)
+ goto out;
current->thread.fp_regs.fpc=0;
asm volatile("sfpc %0,0" : : "d" (0));
- result = regs->gprs[2];
-out_putname:
- putname(filename);
+ rc = regs->gprs[2];
out:
- return result;
-}
-
-
-#ifdef CONFIG_MODULES
-
-asmlinkage long
-sys32_init_module(void __user *umod, unsigned long len,
- const char __user *uargs)
-{
- return sys_init_module(umod, len, uargs);
-}
-
-asmlinkage long
-sys32_delete_module(const char __user *name_user, unsigned int flags)
-{
- return sys_delete_module(name_user, flags);
-}
-
-#else /* CONFIG_MODULES */
-
-asmlinkage long
-sys32_init_module(void __user *umod, unsigned long len,
- const char __user *uargs)
-{
- return -ENOSYS;
+ putname(filename);
+ return rc;
}
-asmlinkage long
-sys32_delete_module(const char __user *name_user, unsigned int flags)
-{
- return -ENOSYS;
-}
-
-#endif /* CONFIG_MODULES */
-
asmlinkage long sys32_pread64(unsigned int fd, char __user *ubuf,
size_t count, u32 poshi, u32 poslo)
{
@@ -801,23 +763,6 @@ asmlinkage long sys32_write(unsigned int fd, char __user * buf, size_t count)
return sys_write(fd, buf, count);
}
-asmlinkage long sys32_clone(void)
-{
- struct pt_regs *regs = task_pt_regs(current);
- unsigned long clone_flags;
- unsigned long newsp;
- int __user *parent_tidptr, *child_tidptr;
-
- clone_flags = regs->gprs[3] & 0xffffffffUL;
- newsp = regs->orig_gpr2 & 0x7fffffffUL;
- parent_tidptr = compat_ptr(regs->gprs[4]);
- child_tidptr = compat_ptr(regs->gprs[5]);
- if (!newsp)
- newsp = regs->gprs[15];
- return do_fork(clone_flags, newsp, regs, 0,
- parent_tidptr, child_tidptr);
-}
-
/*
* 31 bit emulation wrapper functions for sys_fadvise64/fadvise64_64.
* 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,
compat_sigset_t __user *oset, size_t sigsetsize);
long sys32_rt_sigpending(compat_sigset_t __user *set, size_t sigsetsize);
long sys32_rt_sigqueueinfo(int pid, int sig, compat_siginfo_t __user *uinfo);
-long sys32_execve(void);
+long sys32_execve(char __user *name, compat_uptr_t __user *argv,
+ compat_uptr_t __user *envp);
long sys32_init_module(void __user *umod, unsigned long len,
const char __user *uargs);
long 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);
long sys32_mmap2(struct mmap_arg_struct_emu31 __user *arg);
long sys32_read(unsigned int fd, char __user * buf, size_t count);
long sys32_write(unsigned int fd, char __user * buf, size_t count);
-long sys32_clone(void);
long sys32_fadvise64(int fd, loff_t offset, size_t len, int advise);
long sys32_fadvise64_64(struct fadvise64_64_args __user *args);
long 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 624790042d41..682fb69dba21 100644
--- a/arch/s390/kernel/compat_wrapper.S
+++ b/arch/s390/kernel/compat_wrapper.S
@@ -568,18 +568,18 @@ compat_sys_sigprocmask_wrapper:
llgtr %r4,%r4 # compat_old_sigset_t *
jg compat_sys_sigprocmask # branch to system call
- .globl sys32_init_module_wrapper
-sys32_init_module_wrapper:
+ .globl sys_init_module_wrapper
+sys_init_module_wrapper:
llgtr %r2,%r2 # void *
llgfr %r3,%r3 # unsigned long
llgtr %r4,%r4 # char *
- jg sys32_init_module # branch to system call
+ jg sys_init_module # branch to system call
- .globl sys32_delete_module_wrapper
-sys32_delete_module_wrapper:
+ .globl sys_delete_module_wrapper
+sys_delete_module_wrapper:
llgtr %r2,%r2 # const char *
llgfr %r3,%r3 # unsigned int
- jg sys32_delete_module # branch to system call
+ jg sys_delete_module # branch to system call
.globl sys32_quotactl_wrapper
sys32_quotactl_wrapper:
@@ -1840,3 +1840,18 @@ sys_perf_event_open_wrapper:
lgfr %r5,%r5 # int
llgfr %r6,%r6 # unsigned long
jg sys_perf_event_open # branch to system call
+
+ .globl sys_clone_wrapper
+sys_clone_wrapper:
+ llgfr %r2,%r2 # unsigned long
+ llgfr %r3,%r3 # unsigned long
+ llgtr %r4,%r4 # int *
+ llgtr %r5,%r5 # int *
+ jg sys_clone # branch to system call
+
+ .globl sys32_execve_wrapper
+sys32_execve_wrapper:
+ llgtr %r2,%r2 # char *
+ llgtr %r3,%r3 # compat_uptr_t *
+ llgtr %r4,%r4 # compat_uptr_t *
+ jg sys32_execve # branch to system call
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);
long sys_s390_fallocate(int fd, int mode, loff_t offset, u32 len_high,
u32 len_low);
long sys_fork(void);
-long sys_clone(void);
+long sys_clone(unsigned long newsp, unsigned long clone_flags,
+ int __user *parent_tidptr, int __user *child_tidptr);
long sys_vfork(void);
void execve_tail(void);
-long sys_execve(void);
+long sys_execve(char __user *name, char __user * __user *argv,
+ char __user * __user *envp);
long sys_sigsuspend(int history0, int history1, old_sigset_t mask);
long sys_sigaction(int sig, const struct old_sigaction __user *act,
struct old_sigaction __user *oact);
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index 5a43f27eec13..59fe6ecc6ed3 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -32,6 +32,7 @@
#include <linux/elfcore.h>
#include <linux/kernel_stat.h>
#include <linux/syscalls.h>
+#include <linux/compat.h>
#include <asm/compat.h>
#include <asm/uaccess.h>
#include <asm/pgtable.h>
@@ -230,17 +231,11 @@ SYSCALL_DEFINE0(fork)
return do_fork(SIGCHLD, regs->gprs[15], regs, 0, NULL, NULL);
}
-SYSCALL_DEFINE0(clone)
+SYSCALL_DEFINE4(clone, unsigned long, newsp, unsigned long, clone_flags,
+ int __user *, parent_tidptr, int __user *, child_tidptr)
{
struct pt_regs *regs = task_pt_regs(current);
- unsigned long clone_flags;
- unsigned long newsp;
- int __user *parent_tidptr, *child_tidptr;
- clone_flags = regs->gprs[3];
- newsp = regs->orig_gpr2;
- parent_tidptr = (int __user *) regs->gprs[4];
- child_tidptr = (int __user *) regs->gprs[5];
if (!newsp)
newsp = regs->gprs[15];
return do_fork(clone_flags, newsp, regs, 0,
@@ -274,30 +269,25 @@ asmlinkage void execve_tail(void)
/*
* sys_execve() executes a new program.
*/
-SYSCALL_DEFINE0(execve)
+SYSCALL_DEFINE3(execve, char __user *, name, char __user * __user *, argv,
+ char __user * __user *, envp)
{
struct pt_regs *regs = task_pt_regs(current);
char *filename;
- unsigned long result;
- int rc;
+ long rc;
- filename = getname((char __user *) regs->orig_gpr2);
- if (IS_ERR(filename)) {
- result = PTR_ERR(filename);
+ filename = getname(name);
+ rc = PTR_ERR(filename);
+ if (IS_ERR(filename))
+ return rc;
+ rc = do_execve(filename, argv, envp, regs);
+ if (rc)
goto out;
- }
- rc = do_execve(filename, (char __user * __user *) regs->gprs[3],
- (char __user * __user *) regs->gprs[4], regs);
- if (rc) {
- result = rc;
- goto out_putname;
- }
execve_tail();
- result = regs->gprs[2];
-out_putname:
- putname(filename);
+ rc = regs->gprs[2];
out:
- return result;
+ putname(filename);
+ return rc;
}
/*
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)
int copied, ret;
switch (request) {
- case PTRACE_PEEKTEXT:
- case PTRACE_PEEKDATA:
- /* Remove high order bit from address (only for 31 bit). */
- addr &= PSW_ADDR_INSN;
- /* read word at location addr. */
- return generic_ptrace_peekdata(child, addr, data);
-
case PTRACE_PEEKUSR:
/* read the word at location addr in the USER area. */
return peek_user(child, addr, data);
- case PTRACE_POKETEXT:
- case PTRACE_POKEDATA:
- /* Remove high order bit from address (only for 31 bit). */
- addr &= PSW_ADDR_INSN;
- /* write the word at location addr. */
- return generic_ptrace_pokedata(child, addr, data);
-
case PTRACE_POKEUSR:
/* write the word at location addr in the USER area */
return poke_user(child, addr, data);
@@ -386,8 +372,11 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
copied += sizeof(unsigned long);
}
return 0;
+ default:
+ /* Removing high order bit from addr (only for 31 bit). */
+ addr &= PSW_ADDR_INSN;
+ return ptrace_request(child, request, addr, data);
}
- return ptrace_request(child, request, addr, data);
}
#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
# R3 = external interruption parameter if R2=0
#
-.section ".init.text","ax"
-
_sclp_wait_int:
stm %r6,%r15,24(%r15) # save registers
basr %r13,0 # get base register
@@ -318,9 +316,8 @@ _sclp_print_early:
.long _sclp_work_area
.Lascebc:
.long _ascebc
-.previous
-.section ".init.data","a"
+.section .data,"aw",@progbits
.balign 4096
_sclp_work_area:
.fill 4096
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 56c16876b919..b4b6396e6cf0 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -475,10 +475,8 @@ static int __cpuinit smp_alloc_lowcore(int cpu)
{
unsigned long async_stack, panic_stack;
struct _lowcore *lowcore;
- int lc_order;
- lc_order = sizeof(long) == 8 ? 1 : 0;
- lowcore = (void *) __get_free_pages(GFP_KERNEL | GFP_DMA, lc_order);
+ lowcore = (void *) __get_free_pages(GFP_KERNEL | GFP_DMA, LC_ORDER);
if (!lowcore)
return -ENOMEM;
async_stack = __get_free_pages(GFP_KERNEL, ASYNC_ORDER);
@@ -509,16 +507,14 @@ static int __cpuinit smp_alloc_lowcore(int cpu)
out:
free_page(panic_stack);
free_pages(async_stack, ASYNC_ORDER);
- free_pages((unsigned long) lowcore, lc_order);
+ free_pages((unsigned long) lowcore, LC_ORDER);
return -ENOMEM;
}
static void smp_free_lowcore(int cpu)
{
struct _lowcore *lowcore;
- int lc_order;
- lc_order = sizeof(long) == 8 ? 1 : 0;
lowcore = lowcore_ptr[cpu];
#ifndef CONFIG_64BIT
if (MACHINE_HAS_IEEE)
@@ -528,7 +524,7 @@ static void smp_free_lowcore(int cpu)
#endif
free_page(lowcore->panic_stack - PAGE_SIZE);
free_pages(lowcore->async_stack - ASYNC_SIZE, ASYNC_ORDER);
- free_pages((unsigned long) lowcore, lc_order);
+ free_pages((unsigned long) lowcore, LC_ORDER);
lowcore_ptr[cpu] = NULL;
}
@@ -664,7 +660,6 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
unsigned long async_stack, panic_stack;
struct _lowcore *lowcore;
unsigned int cpu;
- int lc_order;
smp_detect_cpus();
@@ -674,8 +669,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
print_cpu_info();
/* Reallocate current lowcore, but keep its contents. */
- lc_order = sizeof(long) == 8 ? 1 : 0;
- lowcore = (void *) __get_free_pages(GFP_KERNEL | GFP_DMA, lc_order);
+ lowcore = (void *) __get_free_pages(GFP_KERNEL | GFP_DMA, LC_ORDER);
panic_stack = __get_free_page(GFP_KERNEL);
async_stack = __get_free_pages(GFP_KERNEL, ASYNC_ORDER);
BUG_ON(!lowcore || !panic_stack || !async_stack);
@@ -1047,42 +1041,6 @@ out:
static SYSDEV_CLASS_ATTR(dispatching, 0644, dispatching_show,
dispatching_store);
-/*
- * If the resume kernel runs on another cpu than the suspended kernel,
- * we have to switch the cpu IDs in the logical map.
- */
-void smp_switch_boot_cpu_in_resume(u32 resume_phys_cpu_id,
- struct _lowcore *suspend_lowcore)
-{
- int cpu, suspend_cpu_id, resume_cpu_id;
- u32 suspend_phys_cpu_id;
-
- suspend_phys_cpu_id = __cpu_logical_map[suspend_lowcore->cpu_nr];
- suspend_cpu_id = suspend_lowcore->cpu_nr;
-
- for_each_present_cpu(cpu) {
- if (__cpu_logical_map[cpu] == resume_phys_cpu_id) {
- resume_cpu_id = cpu;
- goto found;
- }
- }
- panic("Could not find resume cpu in logical map.\n");
-
-found:
- printk("Resume cpu ID: %i/%i\n", resume_phys_cpu_id, resume_cpu_id);
- printk("Suspend cpu ID: %i/%i\n", suspend_phys_cpu_id, suspend_cpu_id);
-
- __cpu_logical_map[resume_cpu_id] = suspend_phys_cpu_id;
- __cpu_logical_map[suspend_cpu_id] = resume_phys_cpu_id;
-
- lowcore_ptr[suspend_cpu_id]->cpu_addr = resume_phys_cpu_id;
-}
-
-u32 smp_get_phys_cpu_id(void)
-{
- return __cpu_logical_map[smp_processor_id()];
-}
-
static int __init topology_init(void)
{
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 @@
* Author(s): Hans-Joachim Picht <hans@linux.vnet.ibm.com>
*/
-#include <linux/suspend.h>
-#include <linux/reboot.h>
#include <linux/pfn.h>
-#include <linux/mm.h>
-#include <asm/sections.h>
#include <asm/system.h>
-#include <asm/ipl.h>
/*
* References to section boundaries
*/
extern const void __nosave_begin, __nosave_end;
-/*
- * check if given pfn is in the 'nosave' or in the read only NSS section
- */
int pfn_is_nosave(unsigned long pfn)
{
- unsigned long nosave_begin_pfn = __pa(&__nosave_begin) >> PAGE_SHIFT;
- unsigned long nosave_end_pfn = PAGE_ALIGN(__pa(&__nosave_end))
- >> PAGE_SHIFT;
- unsigned long eshared_pfn = PFN_DOWN(__pa(&_eshared)) - 1;
- unsigned long stext_pfn = PFN_DOWN(__pa(&_stext));
+ unsigned long nosave_begin_pfn = PFN_DOWN(__pa(&__nosave_begin));
+ unsigned long nosave_end_pfn = PFN_DOWN(__pa(&__nosave_end));
+ /* Always save lowcore pages (LC protection might be enabled). */
+ if (pfn <= LC_PAGES)
+ return 0;
if (pfn >= nosave_begin_pfn && pfn < nosave_end_pfn)
return 1;
- if (pfn >= stext_pfn && pfn <= eshared_pfn) {
- if (ipl_info.type == IPL_TYPE_NSS)
- return 1;
- } else if ((tprot(pfn * PAGE_SIZE) && pfn > 0))
+ /* Skip memory holes and read-only pages (NSS, DCSS, ...). */
+ if (tprot(PFN_PHYS(pfn)))
return 1;
return 0;
}
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 @@
#include <asm/page.h>
#include <asm/ptrace.h>
+#include <asm/thread_info.h>
#include <asm/asm-offsets.h>
/*
@@ -41,6 +42,9 @@ swsusp_arch_suspend:
/* Get pointer to save area */
lghi %r1,0x1000
+ /* Save CPU address */
+ stap __LC_CPU_ADDRESS(%r1)
+
/* Store registers */
mvc 0x318(4,%r1),__SF_EMPTY(%r15) /* move prefix to lowcore */
stfpc 0x31c(%r1) /* store fpu control */
@@ -102,11 +106,10 @@ swsusp_arch_resume:
aghi %r15,-STACK_FRAME_OVERHEAD
stg %r1,__SF_BACKCHAIN(%r15)
-#ifdef CONFIG_SMP
- /* Save boot cpu number */
- brasl %r14,smp_get_phys_cpu_id
- lgr %r10,%r2
-#endif
+ /* Make all free pages stable */
+ lghi %r2,1
+ brasl %r14,arch_set_page_states
+
/* Deactivate DAT */
stnsm __SF_EMPTY(%r15),0xfb
@@ -133,6 +136,69 @@ swsusp_arch_resume:
2:
ptlb /* flush tlb */
+ /* Reset System */
+ larl %r1,restart_entry
+ larl %r2,.Lrestart_diag308_psw
+ og %r1,0(%r2)
+ stg %r1,0(%r0)
+ larl %r1,.Lnew_pgm_check_psw
+ epsw %r2,%r3
+ stm %r2,%r3,0(%r1)
+ mvc __LC_PGM_NEW_PSW(16,%r0),0(%r1)
+ lghi %r0,0
+ diag %r0,%r0,0x308
+restart_entry:
+ lhi %r1,1
+ sigp %r1,%r0,0x12
+ sam64
+ larl %r1,.Lnew_pgm_check_psw
+ lpswe 0(%r1)
+pgm_check_entry:
+
+ /* Switch to original suspend CPU */
+ larl %r1,.Lresume_cpu /* Resume CPU address: r2 */
+ stap 0(%r1)
+ llgh %r2,0(%r1)
+ lghi %r3,0x1000
+ llgh %r1,__LC_CPU_ADDRESS(%r3) /* Suspend CPU address: r1 */
+ cgr %r1,%r2
+ je restore_registers /* r1 = r2 -> nothing to do */
+ larl %r4,.Lrestart_suspend_psw /* Set new restart PSW */
+ mvc __LC_RESTART_PSW(16,%r0),0(%r4)
+3:
+ sigp %r9,%r1,__SIGP_INITIAL_CPU_RESET
+ brc 8,4f /* accepted */
+ brc 2,3b /* busy, try again */
+
+ /* Suspend CPU not available -> panic */
+ larl %r15,init_thread_union
+ ahi %r15,1<<(PAGE_SHIFT+THREAD_ORDER)
+ larl %r2,.Lpanic_string
+ larl %r3,_sclp_print_early
+ lghi %r1,0
+ sam31
+ sigp %r1,%r0,0x12
+ basr %r14,%r3
+ larl %r3,.Ldisabled_wait_31
+ lpsw 0(%r3)
+4:
+ /* Switch to suspend CPU */
+ sigp %r9,%r1,__SIGP_RESTART /* start suspend CPU */
+ brc 2,4b /* busy, try again */
+5:
+ sigp %r9,%r2,__SIGP_STOP /* stop resume (current) CPU */
+6: j 6b
+
+restart_suspend:
+ larl %r1,.Lresume_cpu
+ llgh %r2,0(%r1)
+7:
+ sigp %r9,%r2,__SIGP_SENSE /* Wait for resume CPU */
+ brc 2,7b /* busy, try again */
+ tmll %r9,0x40 /* Test if resume CPU is stopped */
+ jz 7b
+
+restore_registers:
/* Restore registers */
lghi %r13,0x1000 /* %r1 = pointer to save arae */
@@ -166,19 +232,33 @@ swsusp_arch_resume:
/* Pointer to save area */
lghi %r13,0x1000
-#ifdef CONFIG_SMP
- /* Switch CPUs */
- lgr %r2,%r10 /* get cpu id */
- llgf %r3,0x318(%r13)
- brasl %r14,smp_switch_boot_cpu_in_resume
-#endif
/* Restore prefix register */
spx 0x318(%r13)
/* Activate DAT */
stosm __SF_EMPTY(%r15),0x04
+ /* Make all free pages unstable */
+ lghi %r2,0
+ brasl %r14,arch_set_page_states
+
/* Return 0 */
lmg %r6,%r15,STACK_FRAME_OVERHEAD + __SF_GPRS(%r15)
lghi %r2,0
br %r14
+
+ .section .data.nosave,"aw",@progbits
+ .align 8
+.Ldisabled_wait_31:
+ .long 0x000a0000,0x00000000
+.Lpanic_string:
+ .asciz "Resume not possible because suspend CPU is no longer available"
+ .align 8
+.Lrestart_diag308_psw:
+ .long 0x00080000,0x80000000
+.Lrestart_suspend_psw:
+ .quad 0x0000000180000000,restart_suspend
+.Lnew_pgm_check_psw:
+ .quad 0,pgm_check_entry
+.Lresume_cpu:
+ .byte 0,0
diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
index 0b5083681e77..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)
SYSCALL(sys_creat,sys_creat,sys32_creat_wrapper)
SYSCALL(sys_link,sys_link,sys32_link_wrapper)
SYSCALL(sys_unlink,sys_unlink,sys32_unlink_wrapper) /* 10 */
-SYSCALL(sys_execve,sys_execve,sys32_execve)
+SYSCALL(sys_execve,sys_execve,sys32_execve_wrapper)
SYSCALL(sys_chdir,sys_chdir,sys32_chdir_wrapper)
SYSCALL(sys_time,sys_ni_syscall,sys32_time_wrapper) /* old time syscall */
SYSCALL(sys_mknod,sys_mknod,sys32_mknod_wrapper)
@@ -128,7 +128,7 @@ SYSCALL(sys_sysinfo,sys_sysinfo,compat_sys_sysinfo_wrapper)
SYSCALL(sys_ipc,sys_ipc,sys32_ipc_wrapper)
SYSCALL(sys_fsync,sys_fsync,sys32_fsync_wrapper)
SYSCALL(sys_sigreturn,sys_sigreturn,sys32_sigreturn)
-SYSCALL(sys_clone,sys_clone,sys32_clone) /* 120 */
+SYSCALL(sys_clone,sys_clone,sys_clone_wrapper) /* 120 */
SYSCALL(sys_setdomainname,sys_setdomainname,sys32_setdomainname_wrapper)
SYSCALL(sys_newuname,sys_s390_newuname,sys32_newuname_wrapper)
NI_SYSCALL /* modify_ldt for i386 */
@@ -136,8 +136,8 @@ SYSCALL(sys_adjtimex,sys_adjtimex,compat_sys_adjtimex_wrapper)
SYSCALL(sys_mprotect,sys_mprotect,sys32_mprotect_wrapper) /* 125 */
SYSCALL(sys_sigprocmask,sys_sigprocmask,compat_sys_sigprocmask_wrapper)
NI_SYSCALL /* old "create module" */
-SYSCALL(sys_init_module,sys_init_module,sys32_init_module_wrapper)
-SYSCALL(sys_delete_module,sys_delete_module,sys32_delete_module_wrapper)
+SYSCALL(sys_init_module,sys_init_module,sys_init_module_wrapper)
+SYSCALL(sys_delete_module,sys_delete_module,sys_delete_module_wrapper)
NI_SYSCALL /* 130: old get_kernel_syms */
SYSCALL(sys_quotactl,sys_quotactl,sys32_quotactl_wrapper)
SYSCALL(sys_getpgid,sys_getpgid,sys32_getpgid_wrapper)
diff --git a/arch/s390/mm/page-states.c b/arch/s390/mm/page-states.c
index f92ec203ad92..098923ae458f 100644
--- a/arch/s390/mm/page-states.c
+++ b/arch/s390/mm/page-states.c
@@ -50,28 +50,64 @@ void __init cmma_init(void)
cmma_flag = 0;
}
-void arch_free_page(struct page *page, int order)
+static inline void set_page_unstable(struct page *page, int order)
{
int i, rc;
- if (!cmma_flag)
- return;
for (i = 0; i < (1 << order); i++)
asm volatile(".insn rrf,0xb9ab0000,%0,%1,%2,0"
: "=&d" (rc)
- : "a" ((page_to_pfn(page) + i) << PAGE_SHIFT),
+ : "a" (page_to_phys(page + i)),
"i" (ESSA_SET_UNUSED));
}
-void arch_alloc_page(struct page *page, int order)
+void arch_free_page(struct page *page, int order)
{
- int i, rc;
-
if (!cmma_flag)
return;
+ set_page_unstable(page, order);
+}
+
+static inline void set_page_stable(struct page *page, int order)
+{
+ int i, rc;
+
for (i = 0; i < (1 << order); i++)
asm volatile(".insn rrf,0xb9ab0000,%0,%1,%2,0"
: "=&d" (rc)
- : "a" ((page_to_pfn(page) + i) << PAGE_SHIFT),
+ : "a" (page_to_phys(page + i)),
"i" (ESSA_SET_STABLE));
}
+
+void arch_alloc_page(struct page *page, int order)
+{
+ if (!cmma_flag)
+ return;
+ set_page_stable(page, order);
+}
+
+void arch_set_page_states(int make_stable)
+{
+ unsigned long flags, order, t;
+ struct list_head *l;
+ struct page *page;
+ struct zone *zone;
+
+ if (!cmma_flag)
+ return;
+ if (make_stable)
+ drain_local_pages(NULL);
+ for_each_populated_zone(zone) {
+ spin_lock_irqsave(&zone->lock, flags);
+ for_each_migratetype_order(order, t) {
+ list_for_each(l, &zone->free_area[order].free_list[t]) {
+ page = list_entry(l, struct page, lru);
+ if (make_stable)
+ set_page_stable(page, order);
+ else
+ set_page_unstable(page, order);
+ }
+ }
+ spin_unlock_irqrestore(&zone->lock, flags);
+ }
+}
diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c
index c70215247071..c60bfb309ce6 100644
--- a/arch/s390/mm/pgtable.c
+++ b/arch/s390/mm/pgtable.c
@@ -314,21 +314,18 @@ int s390_enable_sie(void)
}
EXPORT_SYMBOL_GPL(s390_enable_sie);
-#ifdef CONFIG_DEBUG_PAGEALLOC
-#ifdef CONFIG_HIBERNATION
+#if defined(CONFIG_DEBUG_PAGEALLOC) && defined(CONFIG_HIBERNATION)
bool kernel_page_present(struct page *page)
{
unsigned long addr;
int cc;
addr = page_to_phys(page);
- asm("lra %1,0(%1)\n"
- "ipm %0\n"
- "srl %0,28"
- :"=d"(cc),"+a"(addr)::"cc");
+ asm volatile(
+ " lra %1,0(%1)\n"
+ " ipm %0\n"
+ " srl %0,28"
+ : "=d" (cc), "+a" (addr) : : "cc");
return cc == 0;
}
-
-#endif /* CONFIG_HIBERNATION */
-#endif /* CONFIG_DEBUG_PAGEALLOC */
-
+#endif /* CONFIG_HIBERNATION && CONFIG_DEBUG_PAGEALLOC */
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-22 19:52:49 +0000