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-rw-r--r--arch/s390/kernel/Makefile6
-rw-r--r--arch/s390/kernel/compat_linux.c235
-rw-r--r--arch/s390/kernel/compat_wrapper.c186
-rw-r--r--arch/s390/kernel/debug.c6
-rw-r--r--arch/s390/kernel/diag.c1
-rw-r--r--arch/s390/kernel/early.c2
-rw-r--r--arch/s390/kernel/entry.S4
-rw-r--r--arch/s390/kernel/head64.S2
-rw-r--r--arch/s390/kernel/kdebugfs.c2
-rw-r--r--arch/s390/kernel/perf_cpum_cf.c224
-rw-r--r--arch/s390/kernel/perf_cpum_cf_common.c201
-rw-r--r--arch/s390/kernel/perf_cpum_cf_diag.c693
-rw-r--r--arch/s390/kernel/perf_cpum_cf_events.c1
-rw-r--r--arch/s390/kernel/setup.c60
-rw-r--r--arch/s390/kernel/swsusp.S6
-rw-r--r--arch/s390/kernel/sys_s390.c16
-rw-r--r--arch/s390/kernel/syscalls/syscall.tbl286
-rw-r--r--arch/s390/kernel/sysinfo.c2
-rw-r--r--arch/s390/kernel/vtime.c4
19 files changed, 1133 insertions, 804 deletions
diff --git a/arch/s390/kernel/Makefile b/arch/s390/kernel/Makefile
index e216e116a9a9..8a62c7f72e1b 100644
--- a/arch/s390/kernel/Makefile
+++ b/arch/s390/kernel/Makefile
@@ -65,7 +65,7 @@ obj-$(CONFIG_HIBERNATION) += suspend.o swsusp.o
obj-$(CONFIG_AUDIT) += audit.o
compat-obj-$(CONFIG_AUDIT) += compat_audit.o
obj-$(CONFIG_COMPAT) += compat_linux.o compat_signal.o
-obj-$(CONFIG_COMPAT) += compat_wrapper.o $(compat-obj-y)
+obj-$(CONFIG_COMPAT) += $(compat-obj-y)
obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
obj-$(CONFIG_STACKTRACE) += stacktrace.o
obj-$(CONFIG_KPROBES) += kprobes.o
@@ -77,8 +77,10 @@ obj-$(CONFIG_JUMP_LABEL) += jump_label.o
obj-$(CONFIG_KEXEC_FILE) += machine_kexec_file.o kexec_image.o
obj-$(CONFIG_KEXEC_FILE) += kexec_elf.o
-obj-$(CONFIG_PERF_EVENTS) += perf_event.o perf_cpum_cf.o perf_cpum_sf.o
+obj-$(CONFIG_PERF_EVENTS) += perf_event.o perf_cpum_cf_common.o
+obj-$(CONFIG_PERF_EVENTS) += perf_cpum_cf.o perf_cpum_sf.o
obj-$(CONFIG_PERF_EVENTS) += perf_cpum_cf_events.o perf_regs.o
+obj-$(CONFIG_PERF_EVENTS) += perf_cpum_cf_diag.o
obj-$(CONFIG_TRACEPOINTS) += trace.o
diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c
index 8ac38d51ed7d..f9d418d1b619 100644
--- a/arch/s390/kernel/compat_linux.c
+++ b/arch/s390/kernel/compat_linux.c
@@ -34,7 +34,6 @@
#include <linux/stat.h>
#include <linux/filter.h>
#include <linux/highmem.h>
-#include <linux/highuid.h>
#include <linux/mman.h>
#include <linux/ipv6.h>
#include <linux/in.h>
@@ -58,245 +57,13 @@
#include "compat_linux.h"
-/* For this source file, we want overflow handling. */
-
-#undef high2lowuid
-#undef high2lowgid
-#undef low2highuid
-#undef low2highgid
-#undef SET_UID16
-#undef SET_GID16
-#undef NEW_TO_OLD_UID
-#undef NEW_TO_OLD_GID
-#undef SET_OLDSTAT_UID
-#undef SET_OLDSTAT_GID
-#undef SET_STAT_UID
-#undef SET_STAT_GID
-
-#define high2lowuid(uid) ((uid) > 65535) ? (u16)overflowuid : (u16)(uid)
-#define high2lowgid(gid) ((gid) > 65535) ? (u16)overflowgid : (u16)(gid)
-#define low2highuid(uid) ((uid) == (u16)-1) ? (uid_t)-1 : (uid_t)(uid)
-#define low2highgid(gid) ((gid) == (u16)-1) ? (gid_t)-1 : (gid_t)(gid)
-#define SET_UID16(var, uid) var = high2lowuid(uid)
-#define SET_GID16(var, gid) var = high2lowgid(gid)
-#define NEW_TO_OLD_UID(uid) high2lowuid(uid)
-#define NEW_TO_OLD_GID(gid) high2lowgid(gid)
-#define SET_OLDSTAT_UID(stat, uid) (stat).st_uid = high2lowuid(uid)
-#define SET_OLDSTAT_GID(stat, gid) (stat).st_gid = high2lowgid(gid)
-#define SET_STAT_UID(stat, uid) (stat).st_uid = high2lowuid(uid)
-#define SET_STAT_GID(stat, gid) (stat).st_gid = high2lowgid(gid)
-
-COMPAT_SYSCALL_DEFINE3(s390_chown16, const char __user *, filename,
- u16, user, u16, group)
-{
- return ksys_chown(filename, low2highuid(user), low2highgid(group));
-}
-
-COMPAT_SYSCALL_DEFINE3(s390_lchown16, const char __user *,
- filename, u16, user, u16, group)
-{
- return ksys_lchown(filename, low2highuid(user), low2highgid(group));
-}
-
-COMPAT_SYSCALL_DEFINE3(s390_fchown16, unsigned int, fd, u16, user, u16, group)
-{
- return ksys_fchown(fd, low2highuid(user), low2highgid(group));
-}
-
-COMPAT_SYSCALL_DEFINE2(s390_setregid16, u16, rgid, u16, egid)
-{
- return sys_setregid(low2highgid(rgid), low2highgid(egid));
-}
-
-COMPAT_SYSCALL_DEFINE1(s390_setgid16, u16, gid)
-{
- return sys_setgid(low2highgid(gid));
-}
-
-COMPAT_SYSCALL_DEFINE2(s390_setreuid16, u16, ruid, u16, euid)
-{
- return sys_setreuid(low2highuid(ruid), low2highuid(euid));
-}
-
-COMPAT_SYSCALL_DEFINE1(s390_setuid16, u16, uid)
-{
- return sys_setuid(low2highuid(uid));
-}
-
-COMPAT_SYSCALL_DEFINE3(s390_setresuid16, u16, ruid, u16, euid, u16, suid)
-{
- return sys_setresuid(low2highuid(ruid), low2highuid(euid),
- low2highuid(suid));
-}
-
-COMPAT_SYSCALL_DEFINE3(s390_getresuid16, u16 __user *, ruidp,
- u16 __user *, euidp, u16 __user *, suidp)
-{
- const struct cred *cred = current_cred();
- int retval;
- u16 ruid, euid, suid;
-
- ruid = high2lowuid(from_kuid_munged(cred->user_ns, cred->uid));
- euid = high2lowuid(from_kuid_munged(cred->user_ns, cred->euid));
- suid = high2lowuid(from_kuid_munged(cred->user_ns, cred->suid));
-
- if (!(retval = put_user(ruid, ruidp)) &&
- !(retval = put_user(euid, euidp)))
- retval = put_user(suid, suidp);
-
- return retval;
-}
-
-COMPAT_SYSCALL_DEFINE3(s390_setresgid16, u16, rgid, u16, egid, u16, sgid)
-{
- return sys_setresgid(low2highgid(rgid), low2highgid(egid),
- low2highgid(sgid));
-}
-
-COMPAT_SYSCALL_DEFINE3(s390_getresgid16, u16 __user *, rgidp,
- u16 __user *, egidp, u16 __user *, sgidp)
-{
- const struct cred *cred = current_cred();
- int retval;
- u16 rgid, egid, sgid;
-
- rgid = high2lowgid(from_kgid_munged(cred->user_ns, cred->gid));
- egid = high2lowgid(from_kgid_munged(cred->user_ns, cred->egid));
- sgid = high2lowgid(from_kgid_munged(cred->user_ns, cred->sgid));
-
- if (!(retval = put_user(rgid, rgidp)) &&
- !(retval = put_user(egid, egidp)))
- retval = put_user(sgid, sgidp);
-
- return retval;
-}
-
-COMPAT_SYSCALL_DEFINE1(s390_setfsuid16, u16, uid)
-{
- return sys_setfsuid(low2highuid(uid));
-}
-
-COMPAT_SYSCALL_DEFINE1(s390_setfsgid16, u16, gid)
-{
- return sys_setfsgid(low2highgid(gid));
-}
-
-static int groups16_to_user(u16 __user *grouplist, struct group_info *group_info)
-{
- struct user_namespace *user_ns = current_user_ns();
- int i;
- u16 group;
- kgid_t kgid;
-
- for (i = 0; i < group_info->ngroups; i++) {
- kgid = group_info->gid[i];
- group = (u16)from_kgid_munged(user_ns, kgid);
- if (put_user(group, grouplist+i))
- return -EFAULT;
- }
-
- return 0;
-}
-
-static int groups16_from_user(struct group_info *group_info, u16 __user *grouplist)
-{
- struct user_namespace *user_ns = current_user_ns();
- int i;
- u16 group;
- kgid_t kgid;
-
- for (i = 0; i < group_info->ngroups; i++) {
- if (get_user(group, grouplist+i))
- return -EFAULT;
-
- kgid = make_kgid(user_ns, (gid_t)group);
- if (!gid_valid(kgid))
- return -EINVAL;
-
- group_info->gid[i] = kgid;
- }
-
- return 0;
-}
-
-COMPAT_SYSCALL_DEFINE2(s390_getgroups16, int, gidsetsize, u16 __user *, grouplist)
-{
- const struct cred *cred = current_cred();
- int i;
-
- if (gidsetsize < 0)
- return -EINVAL;
-
- get_group_info(cred->group_info);
- i = cred->group_info->ngroups;
- if (gidsetsize) {
- if (i > gidsetsize) {
- i = -EINVAL;
- goto out;
- }
- if (groups16_to_user(grouplist, cred->group_info)) {
- i = -EFAULT;
- goto out;
- }
- }
-out:
- put_group_info(cred->group_info);
- return i;
-}
-
-COMPAT_SYSCALL_DEFINE2(s390_setgroups16, int, gidsetsize, u16 __user *, grouplist)
-{
- struct group_info *group_info;
- int retval;
-
- if (!may_setgroups())
- return -EPERM;
- if ((unsigned)gidsetsize > NGROUPS_MAX)
- return -EINVAL;
-
- group_info = groups_alloc(gidsetsize);
- if (!group_info)
- return -ENOMEM;
- retval = groups16_from_user(group_info, grouplist);
- if (retval) {
- put_group_info(group_info);
- return retval;
- }
-
- groups_sort(group_info);
- retval = set_current_groups(group_info);
- put_group_info(group_info);
-
- return retval;
-}
-
-COMPAT_SYSCALL_DEFINE0(s390_getuid16)
-{
- return high2lowuid(from_kuid_munged(current_user_ns(), current_uid()));
-}
-
-COMPAT_SYSCALL_DEFINE0(s390_geteuid16)
-{
- return high2lowuid(from_kuid_munged(current_user_ns(), current_euid()));
-}
-
-COMPAT_SYSCALL_DEFINE0(s390_getgid16)
-{
- return high2lowgid(from_kgid_munged(current_user_ns(), current_gid()));
-}
-
-COMPAT_SYSCALL_DEFINE0(s390_getegid16)
-{
- return high2lowgid(from_kgid_munged(current_user_ns(), current_egid()));
-}
-
#ifdef CONFIG_SYSVIPC
COMPAT_SYSCALL_DEFINE5(s390_ipc, uint, call, int, first, compat_ulong_t, second,
compat_ulong_t, third, compat_uptr_t, ptr)
{
if (call >> 16) /* hack for backward compatibility */
return -EINVAL;
- return compat_sys_ipc(call, first, second, third, ptr, third);
+ return compat_ksys_ipc(call, first, second, third, ptr, third);
}
#endif
diff --git a/arch/s390/kernel/compat_wrapper.c b/arch/s390/kernel/compat_wrapper.c
deleted file mode 100644
index 48c4ce668244..000000000000
--- a/arch/s390/kernel/compat_wrapper.c
+++ /dev/null
@@ -1,186 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Compat system call wrappers.
- *
- * Copyright IBM Corp. 2014
- */
-
-#include <linux/syscalls.h>
-#include <linux/compat.h>
-#include "entry.h"
-
-#define COMPAT_SYSCALL_WRAP1(name, ...) \
- COMPAT_SYSCALL_WRAPx(1, _##name, __VA_ARGS__)
-#define COMPAT_SYSCALL_WRAP2(name, ...) \
- COMPAT_SYSCALL_WRAPx(2, _##name, __VA_ARGS__)
-#define COMPAT_SYSCALL_WRAP3(name, ...) \
- COMPAT_SYSCALL_WRAPx(3, _##name, __VA_ARGS__)
-#define COMPAT_SYSCALL_WRAP4(name, ...) \
- COMPAT_SYSCALL_WRAPx(4, _##name, __VA_ARGS__)
-#define COMPAT_SYSCALL_WRAP5(name, ...) \
- COMPAT_SYSCALL_WRAPx(5, _##name, __VA_ARGS__)
-#define COMPAT_SYSCALL_WRAP6(name, ...) \
- COMPAT_SYSCALL_WRAPx(6, _##name, __VA_ARGS__)
-
-#define __SC_COMPAT_TYPE(t, a) \
- __typeof(__builtin_choose_expr(sizeof(t) > 4, 0L, (t)0)) a
-
-#define __SC_COMPAT_CAST(t, a) \
-({ \
- long __ReS = a; \
- \
- BUILD_BUG_ON((sizeof(t) > 4) && !__TYPE_IS_L(t) && \
- !__TYPE_IS_UL(t) && !__TYPE_IS_PTR(t)); \
- if (__TYPE_IS_L(t)) \
- __ReS = (s32)a; \
- if (__TYPE_IS_UL(t)) \
- __ReS = (u32)a; \
- if (__TYPE_IS_PTR(t)) \
- __ReS = a & 0x7fffffff; \
- (t)__ReS; \
-})
-
-/*
- * The COMPAT_SYSCALL_WRAP macro generates system call wrappers to be used by
- * compat tasks. These wrappers will only be used for system calls where only
- * the system call arguments need sign or zero extension or zeroing of the upper
- * 33 bits of pointers.
- * Note: since the wrapper function will afterwards call a system call which
- * again performs zero and sign extension for all system call arguments with
- * a size of less than eight bytes, these compat wrappers only touch those
- * system call arguments with a size of eight bytes ((unsigned) long and
- * pointers). Zero and sign extension for e.g. int parameters will be done by
- * the regular system call wrappers.
- */
-#define COMPAT_SYSCALL_WRAPx(x, name, ...) \
-asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)); \
-asmlinkage long notrace compat_sys##name(__MAP(x,__SC_COMPAT_TYPE,__VA_ARGS__));\
-asmlinkage long notrace compat_sys##name(__MAP(x,__SC_COMPAT_TYPE,__VA_ARGS__)) \
-{ \
- return sys##name(__MAP(x,__SC_COMPAT_CAST,__VA_ARGS__)); \
-}
-
-COMPAT_SYSCALL_WRAP2(creat, const char __user *, pathname, umode_t, mode);
-COMPAT_SYSCALL_WRAP2(link, const char __user *, oldname, const char __user *, newname);
-COMPAT_SYSCALL_WRAP1(unlink, const char __user *, pathname);
-COMPAT_SYSCALL_WRAP1(chdir, const char __user *, filename);
-COMPAT_SYSCALL_WRAP3(mknod, const char __user *, filename, umode_t, mode, unsigned, dev);
-COMPAT_SYSCALL_WRAP2(chmod, const char __user *, filename, umode_t, mode);
-COMPAT_SYSCALL_WRAP1(oldumount, char __user *, name);
-COMPAT_SYSCALL_WRAP2(access, const char __user *, filename, int, mode);
-COMPAT_SYSCALL_WRAP2(rename, const char __user *, oldname, const char __user *, newname);
-COMPAT_SYSCALL_WRAP2(mkdir, const char __user *, pathname, umode_t, mode);
-COMPAT_SYSCALL_WRAP1(rmdir, const char __user *, pathname);
-COMPAT_SYSCALL_WRAP1(pipe, int __user *, fildes);
-COMPAT_SYSCALL_WRAP1(brk, unsigned long, brk);
-COMPAT_SYSCALL_WRAP2(signal, int, sig, __sighandler_t, handler);
-COMPAT_SYSCALL_WRAP1(acct, const char __user *, name);
-COMPAT_SYSCALL_WRAP2(umount, char __user *, name, int, flags);
-COMPAT_SYSCALL_WRAP1(chroot, const char __user *, filename);
-COMPAT_SYSCALL_WRAP3(sigsuspend, int, unused1, int, unused2, old_sigset_t, mask);
-COMPAT_SYSCALL_WRAP2(sethostname, char __user *, name, int, len);
-COMPAT_SYSCALL_WRAP2(symlink, const char __user *, old, const char __user *, new);
-COMPAT_SYSCALL_WRAP3(readlink, const char __user *, path, char __user *, buf, int, bufsiz);
-COMPAT_SYSCALL_WRAP1(uselib, const char __user *, library);
-COMPAT_SYSCALL_WRAP2(swapon, const char __user *, specialfile, int, swap_flags);
-COMPAT_SYSCALL_WRAP4(reboot, int, magic1, int, magic2, unsigned int, cmd, void __user *, arg);
-COMPAT_SYSCALL_WRAP2(munmap, unsigned long, addr, size_t, len);
-COMPAT_SYSCALL_WRAP3(syslog, int, type, char __user *, buf, int, len);
-COMPAT_SYSCALL_WRAP1(swapoff, const char __user *, specialfile);
-COMPAT_SYSCALL_WRAP2(setdomainname, char __user *, name, int, len);
-COMPAT_SYSCALL_WRAP1(newuname, struct new_utsname __user *, name);
-COMPAT_SYSCALL_WRAP3(mprotect, unsigned long, start, size_t, len, unsigned long, prot);
-COMPAT_SYSCALL_WRAP3(init_module, void __user *, umod, unsigned long, len, const char __user *, uargs);
-COMPAT_SYSCALL_WRAP2(delete_module, const char __user *, name_user, unsigned int, flags);
-COMPAT_SYSCALL_WRAP4(quotactl, unsigned int, cmd, const char __user *, special, qid_t, id, void __user *, addr);
-COMPAT_SYSCALL_WRAP2(bdflush, int, func, long, data);
-COMPAT_SYSCALL_WRAP3(sysfs, int, option, unsigned long, arg1, unsigned long, arg2);
-COMPAT_SYSCALL_WRAP5(llseek, unsigned int, fd, unsigned long, high, unsigned long, low, loff_t __user *, result, unsigned int, whence);
-COMPAT_SYSCALL_WRAP3(msync, unsigned long, start, size_t, len, int, flags);
-COMPAT_SYSCALL_WRAP2(mlock, unsigned long, start, size_t, len);
-COMPAT_SYSCALL_WRAP2(munlock, unsigned long, start, size_t, len);
-COMPAT_SYSCALL_WRAP2(sched_setparam, pid_t, pid, struct sched_param __user *, param);
-COMPAT_SYSCALL_WRAP2(sched_getparam, pid_t, pid, struct sched_param __user *, param);
-COMPAT_SYSCALL_WRAP3(sched_setscheduler, pid_t, pid, int, policy, struct sched_param __user *, param);
-COMPAT_SYSCALL_WRAP5(mremap, unsigned long, addr, unsigned long, old_len, unsigned long, new_len, unsigned long, flags, unsigned long, new_addr);
-COMPAT_SYSCALL_WRAP3(poll, struct pollfd __user *, ufds, unsigned int, nfds, int, timeout);
-COMPAT_SYSCALL_WRAP5(prctl, int, option, unsigned long, arg2, unsigned long, arg3, unsigned long, arg4, unsigned long, arg5);
-COMPAT_SYSCALL_WRAP2(getcwd, char __user *, buf, unsigned long, size);
-COMPAT_SYSCALL_WRAP2(capget, cap_user_header_t, header, cap_user_data_t, dataptr);
-COMPAT_SYSCALL_WRAP2(capset, cap_user_header_t, header, const cap_user_data_t, data);
-COMPAT_SYSCALL_WRAP3(lchown, const char __user *, filename, uid_t, user, gid_t, group);
-COMPAT_SYSCALL_WRAP2(getgroups, int, gidsetsize, gid_t __user *, grouplist);
-COMPAT_SYSCALL_WRAP2(setgroups, int, gidsetsize, gid_t __user *, grouplist);
-COMPAT_SYSCALL_WRAP3(getresuid, uid_t __user *, ruid, uid_t __user *, euid, uid_t __user *, suid);
-COMPAT_SYSCALL_WRAP3(getresgid, gid_t __user *, rgid, gid_t __user *, egid, gid_t __user *, sgid);
-COMPAT_SYSCALL_WRAP3(chown, const char __user *, filename, uid_t, user, gid_t, group);
-COMPAT_SYSCALL_WRAP2(pivot_root, const char __user *, new_root, const char __user *, put_old);
-COMPAT_SYSCALL_WRAP3(mincore, unsigned long, start, size_t, len, unsigned char __user *, vec);
-COMPAT_SYSCALL_WRAP3(madvise, unsigned long, start, size_t, len, int, behavior);
-COMPAT_SYSCALL_WRAP5(setxattr, const char __user *, path, const char __user *, name, const void __user *, value, size_t, size, int, flags);
-COMPAT_SYSCALL_WRAP5(lsetxattr, const char __user *, path, const char __user *, name, const void __user *, value, size_t, size, int, flags);
-COMPAT_SYSCALL_WRAP5(fsetxattr, int, fd, const char __user *, name, const void __user *, value, size_t, size, int, flags);
-COMPAT_SYSCALL_WRAP3(getdents64, unsigned int, fd, struct linux_dirent64 __user *, dirent, unsigned int, count);
-COMPAT_SYSCALL_WRAP4(getxattr, const char __user *, path, const char __user *, name, void __user *, value, size_t, size);
-COMPAT_SYSCALL_WRAP4(lgetxattr, const char __user *, path, const char __user *, name, void __user *, value, size_t, size);
-COMPAT_SYSCALL_WRAP4(fgetxattr, int, fd, const char __user *, name, void __user *, value, size_t, size);
-COMPAT_SYSCALL_WRAP3(listxattr, const char __user *, path, char __user *, list, size_t, size);
-COMPAT_SYSCALL_WRAP3(llistxattr, const char __user *, path, char __user *, list, size_t, size);
-COMPAT_SYSCALL_WRAP3(flistxattr, int, fd, char __user *, list, size_t, size);
-COMPAT_SYSCALL_WRAP2(removexattr, const char __user *, path, const char __user *, name);
-COMPAT_SYSCALL_WRAP2(lremovexattr, const char __user *, path, const char __user *, name);
-COMPAT_SYSCALL_WRAP2(fremovexattr, int, fd, const char __user *, name);
-COMPAT_SYSCALL_WRAP1(set_tid_address, int __user *, tidptr);
-COMPAT_SYSCALL_WRAP4(epoll_ctl, int, epfd, int, op, int, fd, struct epoll_event __user *, event);
-COMPAT_SYSCALL_WRAP4(epoll_wait, int, epfd, struct epoll_event __user *, events, int, maxevents, int, timeout);
-COMPAT_SYSCALL_WRAP1(io_destroy, aio_context_t, ctx);
-COMPAT_SYSCALL_WRAP3(io_cancel, aio_context_t, ctx_id, struct iocb __user *, iocb, struct io_event __user *, result);
-COMPAT_SYSCALL_WRAP1(mq_unlink, const char __user *, name);
-COMPAT_SYSCALL_WRAP5(add_key, const char __user *, tp, const char __user *, dsc, const void __user *, pld, size_t, len, key_serial_t, id);
-COMPAT_SYSCALL_WRAP4(request_key, const char __user *, tp, const char __user *, dsc, const char __user *, info, key_serial_t, id);
-COMPAT_SYSCALL_WRAP5(remap_file_pages, unsigned long, start, unsigned long, size, unsigned long, prot, unsigned long, pgoff, unsigned long, flags);
-COMPAT_SYSCALL_WRAP3(inotify_add_watch, int, fd, const char __user *, path, u32, mask);
-COMPAT_SYSCALL_WRAP3(mkdirat, int, dfd, const char __user *, pathname, umode_t, mode);
-COMPAT_SYSCALL_WRAP4(mknodat, int, dfd, const char __user *, filename, umode_t, mode, unsigned, dev);
-COMPAT_SYSCALL_WRAP5(fchownat, int, dfd, const char __user *, filename, uid_t, user, gid_t, group, int, flag);
-COMPAT_SYSCALL_WRAP3(unlinkat, int, dfd, const char __user *, pathname, int, flag);
-COMPAT_SYSCALL_WRAP4(renameat, int, olddfd, const char __user *, oldname, int, newdfd, const char __user *, newname);
-COMPAT_SYSCALL_WRAP5(linkat, int, olddfd, const char __user *, oldname, int, newdfd, const char __user *, newname, int, flags);
-COMPAT_SYSCALL_WRAP3(symlinkat, const char __user *, oldname, int, newdfd, const char __user *, newname);
-COMPAT_SYSCALL_WRAP4(readlinkat, int, dfd, const char __user *, path, char __user *, buf, int, bufsiz);
-COMPAT_SYSCALL_WRAP3(fchmodat, int, dfd, const char __user *, filename, umode_t, mode);
-COMPAT_SYSCALL_WRAP3(faccessat, int, dfd, const char __user *, filename, int, mode);
-COMPAT_SYSCALL_WRAP1(unshare, unsigned long, unshare_flags);
-COMPAT_SYSCALL_WRAP6(splice, int, fd_in, loff_t __user *, off_in, int, fd_out, loff_t __user *, off_out, size_t, len, unsigned int, flags);
-COMPAT_SYSCALL_WRAP4(tee, int, fdin, int, fdout, size_t, len, unsigned int, flags);
-COMPAT_SYSCALL_WRAP3(getcpu, unsigned __user *, cpu, unsigned __user *, node, struct getcpu_cache __user *, cache);
-COMPAT_SYSCALL_WRAP2(pipe2, int __user *, fildes, int, flags);
-COMPAT_SYSCALL_WRAP5(perf_event_open, struct perf_event_attr __user *, attr_uptr, pid_t, pid, int, cpu, int, group_fd, unsigned long, flags);
-COMPAT_SYSCALL_WRAP5(clone, unsigned long, newsp, unsigned long, clone_flags, int __user *, parent_tidptr, int __user *, child_tidptr, unsigned long, tls);
-COMPAT_SYSCALL_WRAP4(prlimit64, pid_t, pid, unsigned int, resource, const struct rlimit64 __user *, new_rlim, struct rlimit64 __user *, old_rlim);
-COMPAT_SYSCALL_WRAP5(name_to_handle_at, int, dfd, const char __user *, name, struct file_handle __user *, handle, int __user *, mnt_id, int, flag);
-COMPAT_SYSCALL_WRAP5(kcmp, pid_t, pid1, pid_t, pid2, int, type, unsigned long, idx1, unsigned long, idx2);
-COMPAT_SYSCALL_WRAP3(finit_module, int, fd, const char __user *, uargs, int, flags);
-COMPAT_SYSCALL_WRAP3(sched_setattr, pid_t, pid, struct sched_attr __user *, attr, unsigned int, flags);
-COMPAT_SYSCALL_WRAP4(sched_getattr, pid_t, pid, struct sched_attr __user *, attr, unsigned int, size, unsigned int, flags);
-COMPAT_SYSCALL_WRAP5(renameat2, int, olddfd, const char __user *, oldname, int, newdfd, const char __user *, newname, unsigned int, flags);
-COMPAT_SYSCALL_WRAP3(seccomp, unsigned int, op, unsigned int, flags, void __user *, uargs)
-COMPAT_SYSCALL_WRAP3(getrandom, char __user *, buf, size_t, count, unsigned int, flags)
-COMPAT_SYSCALL_WRAP2(memfd_create, const char __user *, uname, unsigned int, flags)
-COMPAT_SYSCALL_WRAP3(bpf, int, cmd, union bpf_attr *, attr, unsigned int, size);
-COMPAT_SYSCALL_WRAP3(s390_pci_mmio_write, const unsigned long, mmio_addr, const void __user *, user_buffer, const size_t, length);
-COMPAT_SYSCALL_WRAP3(s390_pci_mmio_read, const unsigned long, mmio_addr, void __user *, user_buffer, const size_t, length);
-COMPAT_SYSCALL_WRAP4(socketpair, int, family, int, type, int, protocol, int __user *, usockvec);
-COMPAT_SYSCALL_WRAP3(bind, int, fd, struct sockaddr __user *, umyaddr, int, addrlen);
-COMPAT_SYSCALL_WRAP3(connect, int, fd, struct sockaddr __user *, uservaddr, int, addrlen);
-COMPAT_SYSCALL_WRAP4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr, int __user *, upeer_addrlen, int, flags);
-COMPAT_SYSCALL_WRAP3(getsockname, int, fd, struct sockaddr __user *, usockaddr, int __user *, usockaddr_len);
-COMPAT_SYSCALL_WRAP3(getpeername, int, fd, struct sockaddr __user *, usockaddr, int __user *, usockaddr_len);
-COMPAT_SYSCALL_WRAP6(sendto, int, fd, void __user *, buff, size_t, len, unsigned int, flags, struct sockaddr __user *, addr, int, addr_len);
-COMPAT_SYSCALL_WRAP3(mlock2, unsigned long, start, size_t, len, int, flags);
-COMPAT_SYSCALL_WRAP6(copy_file_range, int, fd_in, loff_t __user *, off_in, int, fd_out, loff_t __user *, off_out, size_t, len, unsigned int, flags);
-COMPAT_SYSCALL_WRAP2(s390_guarded_storage, int, command, struct gs_cb *, gs_cb);
-COMPAT_SYSCALL_WRAP5(statx, int, dfd, const char __user *, path, unsigned, flags, unsigned, mask, struct statx __user *, buffer);
-COMPAT_SYSCALL_WRAP4(s390_sthyi, unsigned long, code, void __user *, info, u64 __user *, rc, unsigned long, flags);
-COMPAT_SYSCALL_WRAP5(kexec_file_load, int, kernel_fd, int, initrd_fd, unsigned long, cmdline_len, const char __user *, cmdline_ptr, unsigned long, flags)
-COMPAT_SYSCALL_WRAP4(rseq, struct rseq __user *, rseq, u32, rseq_len, int, flags, u32, sig)
diff --git a/arch/s390/kernel/debug.c b/arch/s390/kernel/debug.c
index d374f9b218b4..0ebf08c3b35e 100644
--- a/arch/s390/kernel/debug.c
+++ b/arch/s390/kernel/debug.c
@@ -1056,12 +1056,6 @@ int debug_register_view(debug_info_t *id, struct debug_view *view)
mode &= ~(S_IWUSR | S_IWGRP | S_IWOTH);
pde = debugfs_create_file(view->name, mode, id->debugfs_root_entry,
id, &debug_file_ops);
- if (!pde) {
- pr_err("Registering view %s/%s failed due to out of "
- "memory\n", id->name, view->name);
- rc = -1;
- goto out;
- }
spin_lock_irqsave(&id->lock, flags);
for (i = 0; i < DEBUG_MAX_VIEWS; i++) {
if (!id->views[i])
diff --git a/arch/s390/kernel/diag.c b/arch/s390/kernel/diag.c
index 53a5316cc4b7..7edaa733a77f 100644
--- a/arch/s390/kernel/diag.c
+++ b/arch/s390/kernel/diag.c
@@ -45,6 +45,7 @@ static const struct diag_desc diag_map[NR_DIAG_STAT] = {
[DIAG_STAT_X2FC] = { .code = 0x2fc, .name = "Guest Performance Data" },
[DIAG_STAT_X304] = { .code = 0x304, .name = "Partition-Resource Service" },
[DIAG_STAT_X308] = { .code = 0x308, .name = "List-Directed IPL" },
+ [DIAG_STAT_X318] = { .code = 0x318, .name = "CP Name and Version Codes" },
[DIAG_STAT_X500] = { .code = 0x500, .name = "Virtio Service" },
};
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index a8c7789b246b..d6edf45f93b9 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -164,8 +164,6 @@ static noinline __init void setup_lowcore_early(void)
static noinline __init void setup_facility_list(void)
{
- stfle(S390_lowcore.stfle_fac_list,
- ARRAY_SIZE(S390_lowcore.stfle_fac_list));
memcpy(S390_lowcore.alt_stfle_fac_list,
S390_lowcore.stfle_fac_list,
sizeof(S390_lowcore.alt_stfle_fac_list));
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index 39191a0feed1..583d65ef5007 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -1512,7 +1512,7 @@ cleanup_critical:
.quad .Lsie_skip - .Lsie_entry
#endif
.section .rodata, "a"
-#define SYSCALL(esame,emu) .long esame
+#define SYSCALL(esame,emu) .long __s390x_ ## esame
.globl sys_call_table
sys_call_table:
#include "asm/syscall_table.h"
@@ -1520,7 +1520,7 @@ sys_call_table:
#ifdef CONFIG_COMPAT
-#define SYSCALL(esame,emu) .long emu
+#define SYSCALL(esame,emu) .long __s390_ ## emu
.globl sys_call_table_emu
sys_call_table_emu:
#include "asm/syscall_table.h"
diff --git a/arch/s390/kernel/head64.S b/arch/s390/kernel/head64.S
index 57bba24b1c27..56491e636eab 100644
--- a/arch/s390/kernel/head64.S
+++ b/arch/s390/kernel/head64.S
@@ -27,8 +27,6 @@ ENTRY(startup_continue)
mvc 0(16,%r1),__LC_BOOT_CLOCK
larl %r13,.LPG1 # get base
lctlg %c0,%c15,.Lctl-.LPG1(%r13) # load control registers
- lg %r12,.Lparmaddr-.LPG1(%r13) # pointer to parameter area
- # move IPL device to lowcore
larl %r0,boot_vdso_data
stg %r0,__LC_VDSO_PER_CPU
#
diff --git a/arch/s390/kernel/kdebugfs.c b/arch/s390/kernel/kdebugfs.c
index 2c46bd6c6fd2..33130c7daf55 100644
--- a/arch/s390/kernel/kdebugfs.c
+++ b/arch/s390/kernel/kdebugfs.c
@@ -9,8 +9,6 @@ EXPORT_SYMBOL(arch_debugfs_dir);
static int __init arch_kdebugfs_init(void)
{
arch_debugfs_dir = debugfs_create_dir("s390", NULL);
- if (IS_ERR(arch_debugfs_dir))
- arch_debugfs_dir = NULL;
return 0;
}
postcore_initcall(arch_kdebugfs_init);
diff --git a/arch/s390/kernel/perf_cpum_cf.c b/arch/s390/kernel/perf_cpum_cf.c
index d5523adeddbf..e1c54d28713a 100644
--- a/arch/s390/kernel/perf_cpum_cf.c
+++ b/arch/s390/kernel/perf_cpum_cf.c
@@ -10,73 +10,11 @@
#include <linux/kernel.h>
#include <linux/kernel_stat.h>
-#include <linux/perf_event.h>
#include <linux/percpu.h>
#include <linux/notifier.h>
#include <linux/init.h>
#include <linux/export.h>
-#include <asm/ctl_reg.h>
-#include <asm/irq.h>
-#include <asm/cpu_mf.h>
-
-enum cpumf_ctr_set {
- CPUMF_CTR_SET_BASIC = 0, /* Basic Counter Set */
- CPUMF_CTR_SET_USER = 1, /* Problem-State Counter Set */
- CPUMF_CTR_SET_CRYPTO = 2, /* Crypto-Activity Counter Set */
- CPUMF_CTR_SET_EXT = 3, /* Extended Counter Set */
- CPUMF_CTR_SET_MT_DIAG = 4, /* MT-diagnostic Counter Set */
-
- /* Maximum number of counter sets */
- CPUMF_CTR_SET_MAX,
-};
-
-#define CPUMF_LCCTL_ENABLE_SHIFT 16
-#define CPUMF_LCCTL_ACTCTL_SHIFT 0
-static const u64 cpumf_state_ctl[CPUMF_CTR_SET_MAX] = {
- [CPUMF_CTR_SET_BASIC] = 0x02,
- [CPUMF_CTR_SET_USER] = 0x04,
- [CPUMF_CTR_SET_CRYPTO] = 0x08,
- [CPUMF_CTR_SET_EXT] = 0x01,
- [CPUMF_CTR_SET_MT_DIAG] = 0x20,
-};
-
-static void ctr_set_enable(u64 *state, int ctr_set)
-{
- *state |= cpumf_state_ctl[ctr_set] << CPUMF_LCCTL_ENABLE_SHIFT;
-}
-static void ctr_set_disable(u64 *state, int ctr_set)
-{
- *state &= ~(cpumf_state_ctl[ctr_set] << CPUMF_LCCTL_ENABLE_SHIFT);
-}
-static void ctr_set_start(u64 *state, int ctr_set)
-{
- *state |= cpumf_state_ctl[ctr_set] << CPUMF_LCCTL_ACTCTL_SHIFT;
-}
-static void ctr_set_stop(u64 *state, int ctr_set)
-{
- *state &= ~(cpumf_state_ctl[ctr_set] << CPUMF_LCCTL_ACTCTL_SHIFT);
-}
-
-/* Local CPUMF event structure */
-struct cpu_hw_events {
- struct cpumf_ctr_info info;
- atomic_t ctr_set[CPUMF_CTR_SET_MAX];
- u64 state, tx_state;
- unsigned int flags;
- unsigned int txn_flags;
-};
-static DEFINE_PER_CPU(struct cpu_hw_events, cpu_hw_events) = {
- .ctr_set = {
- [CPUMF_CTR_SET_BASIC] = ATOMIC_INIT(0),
- [CPUMF_CTR_SET_USER] = ATOMIC_INIT(0),
- [CPUMF_CTR_SET_CRYPTO] = ATOMIC_INIT(0),
- [CPUMF_CTR_SET_EXT] = ATOMIC_INIT(0),
- [CPUMF_CTR_SET_MT_DIAG] = ATOMIC_INIT(0),
- },
- .state = 0,
- .flags = 0,
- .txn_flags = 0,
-};
+#include <asm/cpu_mcf.h>
static enum cpumf_ctr_set get_counter_set(u64 event)
{
@@ -98,11 +36,11 @@ static enum cpumf_ctr_set get_counter_set(u64 event)
static int validate_ctr_version(const struct hw_perf_event *hwc)
{
- struct cpu_hw_events *cpuhw;
+ struct cpu_cf_events *cpuhw;
int err = 0;
u16 mtdiag_ctl;
- cpuhw = &get_cpu_var(cpu_hw_events);
+ cpuhw = &get_cpu_var(cpu_cf_events);
/* check required version for counter sets */
switch (hwc->config_base) {
@@ -135,7 +73,7 @@ static int validate_ctr_version(const struct hw_perf_event *hwc)
* Thus, the counters can only be used if SMT is on and the
* counter set is enabled and active.
*/
- mtdiag_ctl = cpumf_state_ctl[CPUMF_CTR_SET_MT_DIAG];
+ mtdiag_ctl = cpumf_ctr_ctl[CPUMF_CTR_SET_MT_DIAG];
if (!((cpuhw->info.auth_ctl & mtdiag_ctl) &&
(cpuhw->info.enable_ctl & mtdiag_ctl) &&
(cpuhw->info.act_ctl & mtdiag_ctl)))
@@ -143,28 +81,28 @@ static int validate_ctr_version(const struct hw_perf_event *hwc)
break;
}
- put_cpu_var(cpu_hw_events);
+ put_cpu_var(cpu_cf_events);
return err;
}
static int validate_ctr_auth(const struct hw_perf_event *hwc)
{
- struct cpu_hw_events *cpuhw;
+ struct cpu_cf_events *cpuhw;
u64 ctrs_state;
int err = 0;
- cpuhw = &get_cpu_var(cpu_hw_events);
+ cpuhw = &get_cpu_var(cpu_cf_events);
/* Check authorization for cpu counter sets.
* If the particular CPU counter set is not authorized,
* return with -ENOENT in order to fall back to other
* PMUs that might suffice the event request.
*/
- ctrs_state = cpumf_state_ctl[hwc->config_base];
+ ctrs_state = cpumf_ctr_ctl[hwc->config_base];
if (!(ctrs_state & cpuhw->info.auth_ctl))
err = -ENOENT;
- put_cpu_var(cpu_hw_events);
+ put_cpu_var(cpu_cf_events);
return err;
}
@@ -175,7 +113,7 @@ static int validate_ctr_auth(const struct hw_perf_event *hwc)
*/
static void cpumf_pmu_enable(struct pmu *pmu)
{
- struct cpu_hw_events *cpuhw = this_cpu_ptr(&cpu_hw_events);
+ struct cpu_cf_events *cpuhw = this_cpu_ptr(&cpu_cf_events);
int err;
if (cpuhw->flags & PMU_F_ENABLED)
@@ -198,7 +136,7 @@ static void cpumf_pmu_enable(struct pmu *pmu)
*/
static void cpumf_pmu_disable(struct pmu *pmu)
{
- struct cpu_hw_events *cpuhw = this_cpu_ptr(&cpu_hw_events);
+ struct cpu_cf_events *cpuhw = this_cpu_ptr(&cpu_cf_events);
int err;
u64 inactive;
@@ -222,86 +160,13 @@ static atomic_t num_events = ATOMIC_INIT(0);
/* Used to avoid races in calling reserve/release_cpumf_hardware */
static DEFINE_MUTEX(pmc_reserve_mutex);
-/* CPU-measurement alerts for the counter facility */
-static void cpumf_measurement_alert(struct ext_code ext_code,
- unsigned int alert, unsigned long unused)
-{
- struct cpu_hw_events *cpuhw;
-
- if (!(alert & CPU_MF_INT_CF_MASK))
- return;
-
- inc_irq_stat(IRQEXT_CMC);
- cpuhw = this_cpu_ptr(&cpu_hw_events);
-
- /* Measurement alerts are shared and might happen when the PMU
- * is not reserved. Ignore these alerts in this case. */
- if (!(cpuhw->flags & PMU_F_RESERVED))
- return;
-
- /* counter authorization change alert */
- if (alert & CPU_MF_INT_CF_CACA)
- qctri(&cpuhw->info);
-
- /* loss of counter data alert */
- if (alert & CPU_MF_INT_CF_LCDA)
- pr_err("CPU[%i] Counter data was lost\n", smp_processor_id());
-
- /* loss of MT counter data alert */
- if (alert & CPU_MF_INT_CF_MTDA)
- pr_warn("CPU[%i] MT counter data was lost\n",
- smp_processor_id());
-}
-
-#define PMC_INIT 0
-#define PMC_RELEASE 1
-static void setup_pmc_cpu(void *flags)
-{
- struct cpu_hw_events *cpuhw = this_cpu_ptr(&cpu_hw_events);
-
- switch (*((int *) flags)) {
- case PMC_INIT:
- memset(&cpuhw->info, 0, sizeof(cpuhw->info));
- qctri(&cpuhw->info);
- cpuhw->flags |= PMU_F_RESERVED;
- break;
-
- case PMC_RELEASE:
- cpuhw->flags &= ~PMU_F_RESERVED;
- break;
- }
-
- /* Disable CPU counter sets */
- lcctl(0);
-}
-
-/* Initialize the CPU-measurement facility */
-static int reserve_pmc_hardware(void)
-{
- int flags = PMC_INIT;
-
- on_each_cpu(setup_pmc_cpu, &flags, 1);
- irq_subclass_register(IRQ_SUBCLASS_MEASUREMENT_ALERT);
-
- return 0;
-}
-
-/* Release the CPU-measurement facility */
-static void release_pmc_hardware(void)
-{
- int flags = PMC_RELEASE;
-
- on_each_cpu(setup_pmc_cpu, &flags, 1);
- irq_subclass_unregister(IRQ_SUBCLASS_MEASUREMENT_ALERT);
-}
-
/* Release the PMU if event is the last perf event */
static void hw_perf_event_destroy(struct perf_event *event)
{
if (!atomic_add_unless(&num_events, -1, 1)) {
mutex_lock(&pmc_reserve_mutex);
if (atomic_dec_return(&num_events) == 0)
- release_pmc_hardware();
+ __kernel_cpumcf_end();
mutex_unlock(&pmc_reserve_mutex);
}
}
@@ -332,7 +197,7 @@ static int __hw_perf_event_init(struct perf_event *event)
struct perf_event_attr *attr = &event->attr;
struct hw_perf_event *hwc = &event->hw;
enum cpumf_ctr_set set;
- int err;
+ int err = 0;
u64 ev;
switch (attr->type) {
@@ -402,12 +267,14 @@ static int __hw_perf_event_init(struct perf_event *event)
/* Initialize for using the CPU-measurement counter facility */
if (!atomic_inc_not_zero(&num_events)) {
mutex_lock(&pmc_reserve_mutex);
- if (atomic_read(&num_events) == 0 && reserve_pmc_hardware())
+ if (atomic_read(&num_events) == 0 && __kernel_cpumcf_begin())
err = -EBUSY;
else
atomic_inc(&num_events);
mutex_unlock(&pmc_reserve_mutex);
}
+ if (err)
+ return err;
event->destroy = hw_perf_event_destroy;
/* Finally, validate version and authorization of the counter set */
@@ -488,7 +355,7 @@ static void cpumf_pmu_read(struct perf_event *event)
static void cpumf_pmu_start(struct perf_event *event, int flags)
{
- struct cpu_hw_events *cpuhw = this_cpu_ptr(&cpu_hw_events);
+ struct cpu_cf_events *cpuhw = this_cpu_ptr(&cpu_cf_events);
struct hw_perf_event *hwc = &event->hw;
if (WARN_ON_ONCE(!(hwc->state & PERF_HES_STOPPED)))
@@ -519,7 +386,7 @@ static void cpumf_pmu_start(struct perf_event *event, int flags)
static void cpumf_pmu_stop(struct perf_event *event, int flags)
{
- struct cpu_hw_events *cpuhw = this_cpu_ptr(&cpu_hw_events);
+ struct cpu_cf_events *cpuhw = this_cpu_ptr(&cpu_cf_events);
struct hw_perf_event *hwc = &event->hw;
if (!(hwc->state & PERF_HES_STOPPED)) {
@@ -540,7 +407,7 @@ static void cpumf_pmu_stop(struct perf_event *event, int flags)
static int cpumf_pmu_add(struct perf_event *event, int flags)
{
- struct cpu_hw_events *cpuhw = this_cpu_ptr(&cpu_hw_events);
+ struct cpu_cf_events *cpuhw = this_cpu_ptr(&cpu_cf_events);
/* Check authorization for the counter set to which this
* counter belongs.
@@ -564,7 +431,7 @@ static int cpumf_pmu_add(struct perf_event *event, int flags)
static void cpumf_pmu_del(struct perf_event *event, int flags)
{
- struct cpu_hw_events *cpuhw = this_cpu_ptr(&cpu_hw_events);
+ struct cpu_cf_events *cpuhw = this_cpu_ptr(&cpu_cf_events);
cpumf_pmu_stop(event, PERF_EF_UPDATE);
@@ -592,7 +459,7 @@ static void cpumf_pmu_del(struct perf_event *event, int flags)
*/
static void cpumf_pmu_start_txn(struct pmu *pmu, unsigned int txn_flags)
{
- struct cpu_hw_events *cpuhw = this_cpu_ptr(&cpu_hw_events);
+ struct cpu_cf_events *cpuhw = this_cpu_ptr(&cpu_cf_events);
WARN_ON_ONCE(cpuhw->txn_flags); /* txn already in flight */
@@ -612,7 +479,7 @@ static void cpumf_pmu_start_txn(struct pmu *pmu, unsigned int txn_flags)
static void cpumf_pmu_cancel_txn(struct pmu *pmu)
{
unsigned int txn_flags;
- struct cpu_hw_events *cpuhw = this_cpu_ptr(&cpu_hw_events);
+ struct cpu_cf_events *cpuhw = this_cpu_ptr(&cpu_cf_events);
WARN_ON_ONCE(!cpuhw->txn_flags); /* no txn in flight */
@@ -633,7 +500,7 @@ static void cpumf_pmu_cancel_txn(struct pmu *pmu)
*/
static int cpumf_pmu_commit_txn(struct pmu *pmu)
{
- struct cpu_hw_events *cpuhw = this_cpu_ptr(&cpu_hw_events);
+ struct cpu_cf_events *cpuhw = this_cpu_ptr(&cpu_cf_events);
u64 state;
WARN_ON_ONCE(!cpuhw->txn_flags); /* no txn in flight */
@@ -671,54 +538,17 @@ static struct pmu cpumf_pmu = {
.cancel_txn = cpumf_pmu_cancel_txn,
};
-static int cpumf_pmf_setup(unsigned int cpu, int flags)
-{
- local_irq_disable();
- setup_pmc_cpu(&flags);
- local_irq_enable();
- return 0;
-}
-
-static int s390_pmu_online_cpu(unsigned int cpu)
-{
- return cpumf_pmf_setup(cpu, PMC_INIT);
-}
-
-static int s390_pmu_offline_cpu(unsigned int cpu)
-{
- return cpumf_pmf_setup(cpu, PMC_RELEASE);
-}
-
static int __init cpumf_pmu_init(void)
{
int rc;
- if (!cpum_cf_avail())
+ if (!kernel_cpumcf_avail())
return -ENODEV;
- /* clear bit 15 of cr0 to unauthorize problem-state to
- * extract measurement counters */
- ctl_clear_bit(0, 48);
-
- /* register handler for measurement-alert interruptions */
- rc = register_external_irq(EXT_IRQ_MEASURE_ALERT,
- cpumf_measurement_alert);
- if (rc) {
- pr_err("Registering for CPU-measurement alerts "
- "failed with rc=%i\n", rc);
- return rc;
- }
-
cpumf_pmu.attr_groups = cpumf_cf_event_group();
rc = perf_pmu_register(&cpumf_pmu, "cpum_cf", PERF_TYPE_RAW);
- if (rc) {
+ if (rc)
pr_err("Registering the cpum_cf PMU failed with rc=%i\n", rc);
- unregister_external_irq(EXT_IRQ_MEASURE_ALERT,
- cpumf_measurement_alert);
- return rc;
- }
- return cpuhp_setup_state(CPUHP_AP_PERF_S390_CF_ONLINE,
- "perf/s390/cf:online",
- s390_pmu_online_cpu, s390_pmu_offline_cpu);
+ return rc;
}
-early_initcall(cpumf_pmu_init);
+subsys_initcall(cpumf_pmu_init);
diff --git a/arch/s390/kernel/perf_cpum_cf_common.c b/arch/s390/kernel/perf_cpum_cf_common.c
new file mode 100644
index 000000000000..3bced89caffb
--- /dev/null
+++ b/arch/s390/kernel/perf_cpum_cf_common.c
@@ -0,0 +1,201 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * CPU-Measurement Counter Facility Support - Common Layer
+ *
+ * Copyright IBM Corp. 2019
+ * Author(s): Hendrik Brueckner <brueckner@linux.ibm.com>
+ */
+#define KMSG_COMPONENT "cpum_cf_common"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
+#include <linux/kernel.h>
+#include <linux/kernel_stat.h>
+#include <linux/percpu.h>
+#include <linux/notifier.h>
+#include <linux/init.h>
+#include <linux/export.h>
+#include <asm/ctl_reg.h>
+#include <asm/irq.h>
+#include <asm/cpu_mcf.h>
+
+/* Per-CPU event structure for the counter facility */
+DEFINE_PER_CPU(struct cpu_cf_events, cpu_cf_events) = {
+ .ctr_set = {
+ [CPUMF_CTR_SET_BASIC] = ATOMIC_INIT(0),
+ [CPUMF_CTR_SET_USER] = ATOMIC_INIT(0),
+ [CPUMF_CTR_SET_CRYPTO] = ATOMIC_INIT(0),
+ [CPUMF_CTR_SET_EXT] = ATOMIC_INIT(0),
+ [CPUMF_CTR_SET_MT_DIAG] = ATOMIC_INIT(0),
+ },
+ .alert = ATOMIC64_INIT(0),
+ .state = 0,
+ .flags = 0,
+ .txn_flags = 0,
+};
+/* Indicator whether the CPU-Measurement Counter Facility Support is ready */
+static bool cpum_cf_initalized;
+
+/* CPU-measurement alerts for the counter facility */
+static void cpumf_measurement_alert(struct ext_code ext_code,
+ unsigned int alert, unsigned long unused)
+{
+ struct cpu_cf_events *cpuhw;
+
+ if (!(alert & CPU_MF_INT_CF_MASK))
+ return;
+
+ inc_irq_stat(IRQEXT_CMC);
+ cpuhw = this_cpu_ptr(&cpu_cf_events);
+
+ /* Measurement alerts are shared and might happen when the PMU
+ * is not reserved. Ignore these alerts in this case. */
+ if (!(cpuhw->flags & PMU_F_RESERVED))
+ return;
+
+ /* counter authorization change alert */
+ if (alert & CPU_MF_INT_CF_CACA)
+ qctri(&cpuhw->info);
+
+ /* loss of counter data alert */
+ if (alert & CPU_MF_INT_CF_LCDA)
+ pr_err("CPU[%i] Counter data was lost\n", smp_processor_id());
+
+ /* loss of MT counter data alert */
+ if (alert & CPU_MF_INT_CF_MTDA)
+ pr_warn("CPU[%i] MT counter data was lost\n",
+ smp_processor_id());
+
+ /* store alert for special handling by in-kernel users */
+ atomic64_or(alert, &cpuhw->alert);
+}
+
+#define PMC_INIT 0
+#define PMC_RELEASE 1
+static void cpum_cf_setup_cpu(void *flags)
+{
+ struct cpu_cf_events *cpuhw = this_cpu_ptr(&cpu_cf_events);
+
+ switch (*((int *) flags)) {
+ case PMC_INIT:
+ memset(&cpuhw->info, 0, sizeof(cpuhw->info));
+ qctri(&cpuhw->info);
+ cpuhw->flags |= PMU_F_RESERVED;
+ break;
+
+ case PMC_RELEASE:
+ cpuhw->flags &= ~PMU_F_RESERVED;
+ break;
+ }
+
+ /* Disable CPU counter sets */
+ lcctl(0);
+}
+
+bool kernel_cpumcf_avail(void)
+{
+ return cpum_cf_initalized;
+}
+EXPORT_SYMBOL(kernel_cpumcf_avail);
+
+
+/* Reserve/release functions for sharing perf hardware */
+static DEFINE_SPINLOCK(cpumcf_owner_lock);
+static void *cpumcf_owner;
+
+/* Initialize the CPU-measurement counter facility */
+int __kernel_cpumcf_begin(void)
+{
+ int flags = PMC_INIT;
+ int err = 0;
+
+ spin_lock(&cpumcf_owner_lock);
+ if (cpumcf_owner)
+ err = -EBUSY;
+ else
+ cpumcf_owner = __builtin_return_address(0);
+ spin_unlock(&cpumcf_owner_lock);
+ if (err)
+ return err;
+
+ on_each_cpu(cpum_cf_setup_cpu, &flags, 1);
+ irq_subclass_register(IRQ_SUBCLASS_MEASUREMENT_ALERT);
+
+ return 0;
+}
+EXPORT_SYMBOL(__kernel_cpumcf_begin);
+
+/* Obtain the CPU-measurement alerts for the counter facility */
+unsigned long kernel_cpumcf_alert(int clear)
+{
+ struct cpu_cf_events *cpuhw = this_cpu_ptr(&cpu_cf_events);
+ unsigned long alert;
+
+ alert = atomic64_read(&cpuhw->alert);
+ if (clear)
+ atomic64_set(&cpuhw->alert, 0);
+
+ return alert;
+}
+EXPORT_SYMBOL(kernel_cpumcf_alert);
+
+/* Release the CPU-measurement counter facility */
+void __kernel_cpumcf_end(void)
+{
+ int flags = PMC_RELEASE;
+
+ on_each_cpu(cpum_cf_setup_cpu, &flags, 1);
+ irq_subclass_unregister(IRQ_SUBCLASS_MEASUREMENT_ALERT);
+
+ spin_lock(&cpumcf_owner_lock);
+ cpumcf_owner = NULL;
+ spin_unlock(&cpumcf_owner_lock);
+}
+EXPORT_SYMBOL(__kernel_cpumcf_end);
+
+static int cpum_cf_setup(unsigned int cpu, int flags)
+{
+ local_irq_disable();
+ cpum_cf_setup_cpu(&flags);
+ local_irq_enable();
+ return 0;
+}
+
+static int cpum_cf_online_cpu(unsigned int cpu)
+{
+ return cpum_cf_setup(cpu, PMC_INIT);
+}
+
+static int cpum_cf_offline_cpu(unsigned int cpu)
+{
+ return cpum_cf_setup(cpu, PMC_RELEASE);
+}
+
+static int __init cpum_cf_init(void)
+{
+ int rc;
+
+ if (!cpum_cf_avail())
+ return -ENODEV;
+
+ /* clear bit 15 of cr0 to unauthorize problem-state to
+ * extract measurement counters */
+ ctl_clear_bit(0, 48);
+
+ /* register handler for measurement-alert interruptions */
+ rc = register_external_irq(EXT_IRQ_MEASURE_ALERT,
+ cpumf_measurement_alert);
+ if (rc) {
+ pr_err("Registering for CPU-measurement alerts "
+ "failed with rc=%i\n", rc);
+ return rc;
+ }
+
+ rc = cpuhp_setup_state(CPUHP_AP_PERF_S390_CF_ONLINE,
+ "perf/s390/cf:online",
+ cpum_cf_online_cpu, cpum_cf_offline_cpu);
+ if (!rc)
+ cpum_cf_initalized = true;
+
+ return rc;
+}
+early_initcall(cpum_cf_init);
diff --git a/arch/s390/kernel/perf_cpum_cf_diag.c b/arch/s390/kernel/perf_cpum_cf_diag.c
new file mode 100644
index 000000000000..c6fad208c2fa
--- /dev/null
+++ b/arch/s390/kernel/perf_cpum_cf_diag.c
@@ -0,0 +1,693 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Performance event support for s390x - CPU-measurement Counter Sets
+ *
+ * Copyright IBM Corp. 2019
+ * Author(s): Hendrik Brueckner <brueckner@linux.ibm.com>
+ * Thomas Richer <tmricht@linux.ibm.com>
+ */
+#define KMSG_COMPONENT "cpum_cf_diag"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
+#include <linux/kernel.h>
+#include <linux/kernel_stat.h>
+#include <linux/percpu.h>
+#include <linux/notifier.h>
+#include <linux/init.h>
+#include <linux/export.h>
+#include <linux/slab.h>
+#include <linux/processor.h>
+
+#include <asm/ctl_reg.h>
+#include <asm/irq.h>
+#include <asm/cpu_mcf.h>
+#include <asm/timex.h>
+#include <asm/debug.h>
+
+#define CF_DIAG_CTRSET_DEF 0xfeef /* Counter set header mark */
+
+static unsigned int cf_diag_cpu_speed;
+static debug_info_t *cf_diag_dbg;
+
+struct cf_diag_csd { /* Counter set data per CPU */
+ size_t used; /* Bytes used in data/start */
+ unsigned char start[PAGE_SIZE]; /* Counter set at event start */
+ unsigned char data[PAGE_SIZE]; /* Counter set at event delete */
+};
+DEFINE_PER_CPU(struct cf_diag_csd, cf_diag_csd);
+
+/* Counter sets are stored as data stream in a page sized memory buffer and
+ * exported to user space via raw data attached to the event sample data.
+ * Each counter set starts with an eight byte header consisting of:
+ * - a two byte eye catcher (0xfeef)
+ * - a one byte counter set number
+ * - a two byte counter set size (indicates the number of counters in this set)
+ * - a three byte reserved value (must be zero) to make the header the same
+ * size as a counter value.
+ * All counter values are eight byte in size.
+ *
+ * All counter sets are followed by a 64 byte trailer.
+ * The trailer consists of a:
+ * - flag field indicating valid fields when corresponding bit set
+ * - the counter facility first and second version number
+ * - the CPU speed if nonzero
+ * - the time stamp the counter sets have been collected
+ * - the time of day (TOD) base value
+ * - the machine type.
+ *
+ * The counter sets are saved when the process is prepared to be executed on a
+ * CPU and saved again when the process is going to be removed from a CPU.
+ * The difference of both counter sets are calculated and stored in the event
+ * sample data area.
+ */
+
+struct cf_ctrset_entry { /* CPU-M CF counter set entry (8 byte) */
+ unsigned int def:16; /* 0-15 Data Entry Format */
+ unsigned int set:16; /* 16-31 Counter set identifier */
+ unsigned int ctr:16; /* 32-47 Number of stored counters */
+ unsigned int res1:16; /* 48-63 Reserved */
+};
+
+struct cf_trailer_entry { /* CPU-M CF_DIAG trailer (64 byte) */
+ /* 0 - 7 */
+ union {
+ struct {
+ unsigned int clock_base:1; /* TOD clock base set */
+ unsigned int speed:1; /* CPU speed set */
+ /* Measurement alerts */
+ unsigned int mtda:1; /* Loss of MT ctr. data alert */
+ unsigned int caca:1; /* Counter auth. change alert */
+ unsigned int lcda:1; /* Loss of counter data alert */
+ };
+ unsigned long flags; /* 0-63 All indicators */
+ };
+ /* 8 - 15 */
+ unsigned int cfvn:16; /* 64-79 Ctr First Version */
+ unsigned int csvn:16; /* 80-95 Ctr Second Version */
+ unsigned int cpu_speed:32; /* 96-127 CPU speed */
+ /* 16 - 23 */
+ unsigned long timestamp; /* 128-191 Timestamp (TOD) */
+ /* 24 - 55 */
+ union {
+ struct {
+ unsigned long progusage1;
+ unsigned long progusage2;
+ unsigned long progusage3;
+ unsigned long tod_base;
+ };
+ unsigned long progusage[4];
+ };
+ /* 56 - 63 */
+ unsigned int mach_type:16; /* Machine type */
+ unsigned int res1:16; /* Reserved */
+ unsigned int res2:32; /* Reserved */
+};
+
+/* Create the trailer data at the end of a page. */
+static void cf_diag_trailer(struct cf_trailer_entry *te)
+{
+ struct cpu_cf_events *cpuhw = this_cpu_ptr(&cpu_cf_events);
+ struct cpuid cpuid;
+
+ te->cfvn = cpuhw->info.cfvn; /* Counter version numbers */
+ te->csvn = cpuhw->info.csvn;
+
+ get_cpu_id(&cpuid); /* Machine type */
+ te->mach_type = cpuid.machine;
+ te->cpu_speed = cf_diag_cpu_speed;
+ if (te->cpu_speed)
+ te->speed = 1;
+ te->clock_base = 1; /* Save clock base */
+ memcpy(&te->tod_base, &tod_clock_base[1], 8);
+ store_tod_clock((__u64 *)&te->timestamp);
+}
+
+/*
+ * Change the CPUMF state to active.
+ * Enable and activate the CPU-counter sets according
+ * to the per-cpu control state.
+ */
+static void cf_diag_enable(struct pmu *pmu)
+{
+ struct cpu_cf_events *cpuhw = this_cpu_ptr(&cpu_cf_events);
+ int err;
+
+ debug_sprintf_event(cf_diag_dbg, 5,
+ "%s pmu %p cpu %d flags %#x state %#llx\n",
+ __func__, pmu, smp_processor_id(), cpuhw->flags,
+ cpuhw->state);
+ if (cpuhw->flags & PMU_F_ENABLED)
+ return;
+
+ err = lcctl(cpuhw->state);
+ if (err) {
+ pr_err("Enabling the performance measuring unit "
+ "failed with rc=%x\n", err);
+ return;
+ }
+ cpuhw->flags |= PMU_F_ENABLED;
+}
+
+/*
+ * Change the CPUMF state to inactive.
+ * Disable and enable (inactive) the CPU-counter sets according
+ * to the per-cpu control state.
+ */
+static void cf_diag_disable(struct pmu *pmu)
+{
+ struct cpu_cf_events *cpuhw = this_cpu_ptr(&cpu_cf_events);
+ u64 inactive;
+ int err;
+
+ debug_sprintf_event(cf_diag_dbg, 5,
+ "%s pmu %p cpu %d flags %#x state %#llx\n",
+ __func__, pmu, smp_processor_id(), cpuhw->flags,
+ cpuhw->state);
+ if (!(cpuhw->flags & PMU_F_ENABLED))
+ return;
+
+ inactive = cpuhw->state & ~((1 << CPUMF_LCCTL_ENABLE_SHIFT) - 1);
+ err = lcctl(inactive);
+ if (err) {
+ pr_err("Disabling the performance measuring unit "
+ "failed with rc=%x\n", err);
+ return;
+ }
+ cpuhw->flags &= ~PMU_F_ENABLED;
+}
+
+/* Number of perf events counting hardware events */
+static atomic_t cf_diag_events = ATOMIC_INIT(0);
+
+/* Release the PMU if event is the last perf event */
+static void cf_diag_perf_event_destroy(struct perf_event *event)
+{
+ debug_sprintf_event(cf_diag_dbg, 5,
+ "%s event %p cpu %d cf_diag_events %d\n",
+ __func__, event, event->cpu,
+ atomic_read(&cf_diag_events));
+ if (atomic_dec_return(&cf_diag_events) == 0)
+ __kernel_cpumcf_end();
+}
+
+/* Setup the event. Test for authorized counter sets and only include counter
+ * sets which are authorized at the time of the setup. Including unauthorized
+ * counter sets result in specification exception (and panic).
+ */
+static int __hw_perf_event_init(struct perf_event *event)
+{
+ struct cpu_cf_events *cpuhw = this_cpu_ptr(&cpu_cf_events);
+ struct perf_event_attr *attr = &event->attr;
+ enum cpumf_ctr_set i;
+ int err = 0;
+
+ debug_sprintf_event(cf_diag_dbg, 5,
+ "%s event %p cpu %d authorized %#x\n", __func__,
+ event, event->cpu, cpuhw->info.auth_ctl);
+
+ event->hw.config = attr->config;
+ event->hw.config_base = 0;
+ local64_set(&event->count, 0);
+
+ /* Add all authorized counter sets to config_base */
+ for (i = CPUMF_CTR_SET_BASIC; i < CPUMF_CTR_SET_MAX; ++i)
+ if (cpuhw->info.auth_ctl & cpumf_ctr_ctl[i])
+ event->hw.config_base |= cpumf_ctr_ctl[i];
+
+ /* No authorized counter sets, nothing to count/sample */
+ if (!event->hw.config_base) {
+ err = -EINVAL;
+ goto out;
+ }
+
+ /* Set sample_period to indicate sampling */
+ event->hw.sample_period = attr->sample_period;
+ local64_set(&event->hw.period_left, event->hw.sample_period);
+ event->hw.last_period = event->hw.sample_period;
+out:
+ debug_sprintf_event(cf_diag_dbg, 5, "%s err %d config_base %#lx\n",
+ __func__, err, event->hw.config_base);
+ return err;
+}
+
+static int cf_diag_event_init(struct perf_event *event)
+{
+ struct perf_event_attr *attr = &event->attr;
+ int err = -ENOENT;
+
+ debug_sprintf_event(cf_diag_dbg, 5,
+ "%s event %p cpu %d config %#llx "
+ "sample_type %#llx cf_diag_events %d\n", __func__,
+ event, event->cpu, attr->config, attr->sample_type,
+ atomic_read(&cf_diag_events));
+
+ if (event->attr.config != PERF_EVENT_CPUM_CF_DIAG ||
+ event->attr.type != PERF_TYPE_RAW)
+ goto out;
+
+ /* Raw events are used to access counters directly,
+ * hence do not permit excludes.
+ * This event is usesless without PERF_SAMPLE_RAW to return counter set
+ * values as raw data.
+ */
+ if (attr->exclude_kernel || attr->exclude_user || attr->exclude_hv ||
+ !(attr->sample_type & (PERF_SAMPLE_CPU | PERF_SAMPLE_RAW))) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+
+ /* Initialize for using the CPU-measurement counter facility */
+ if (atomic_inc_return(&cf_diag_events) == 1) {
+ if (__kernel_cpumcf_begin()) {
+ atomic_dec(&cf_diag_events);
+ err = -EBUSY;
+ goto out;
+ }
+ }
+ event->destroy = cf_diag_perf_event_destroy;
+
+ err = __hw_perf_event_init(event);
+ if (unlikely(err))
+ event->destroy(event);
+out:
+ debug_sprintf_event(cf_diag_dbg, 5, "%s err %d\n", __func__, err);
+ return err;
+}
+
+static void cf_diag_read(struct perf_event *event)
+{
+ debug_sprintf_event(cf_diag_dbg, 5, "%s event %p\n", __func__, event);
+}
+
+/* Return the maximum possible counter set size (in number of 8 byte counters)
+ * depending on type and model number.
+ */
+static size_t cf_diag_ctrset_size(enum cpumf_ctr_set ctrset,
+ struct cpumf_ctr_info *info)
+{
+ size_t ctrset_size = 0;
+
+ switch (ctrset) {
+ case CPUMF_CTR_SET_BASIC:
+ if (info->cfvn >= 1)
+ ctrset_size = 6;
+ break;
+ case CPUMF_CTR_SET_USER:
+ if (info->cfvn == 1)
+ ctrset_size = 6;
+ else if (info->cfvn >= 3)
+ ctrset_size = 2;
+ break;
+ case CPUMF_CTR_SET_CRYPTO:
+ ctrset_size = 16;
+ break;
+ case CPUMF_CTR_SET_EXT:
+ if (info->csvn == 1)
+ ctrset_size = 32;
+ else if (info->csvn == 2)
+ ctrset_size = 48;
+ else if (info->csvn >= 3)
+ ctrset_size = 128;
+ break;
+ case CPUMF_CTR_SET_MT_DIAG:
+ if (info->csvn > 3)
+ ctrset_size = 48;
+ break;
+ case CPUMF_CTR_SET_MAX:
+ break;
+ }
+
+ return ctrset_size;
+}
+
+/* Calculate memory needed to store all counter sets together with header and
+ * trailer data. This is independend of the counter set authorization which
+ * can vary depending on the configuration.
+ */
+static size_t cf_diag_ctrset_maxsize(struct cpumf_ctr_info *info)
+{
+ size_t max_size = sizeof(struct cf_trailer_entry);
+ enum cpumf_ctr_set i;
+
+ for (i = CPUMF_CTR_SET_BASIC; i < CPUMF_CTR_SET_MAX; ++i) {
+ size_t size = cf_diag_ctrset_size(i, info);
+
+ if (size)
+ max_size += size * sizeof(u64) +
+ sizeof(struct cf_ctrset_entry);
+ }
+ debug_sprintf_event(cf_diag_dbg, 5, "%s max_size %zu\n", __func__,
+ max_size);
+
+ return max_size;
+}
+
+/* Read a counter set. The counter set number determines which counter set and
+ * the CPUM-CF first and second version number determine the number of
+ * available counters in this counter set.
+ * Each counter set starts with header containing the counter set number and
+ * the number of 8 byte counters.
+ *
+ * The functions returns the number of bytes occupied by this counter set
+ * including the header.
+ * If there is no counter in the counter set, this counter set is useless and
+ * zero is returned on this case.
+ */
+static size_t cf_diag_getctrset(struct cf_ctrset_entry *ctrdata, int ctrset,
+ size_t room)
+{
+ struct cpu_cf_events *cpuhw = this_cpu_ptr(&cpu_cf_events);
+ size_t ctrset_size, need = 0;
+ int rc = 3; /* Assume write failure */
+
+ ctrdata->def = CF_DIAG_CTRSET_DEF;
+ ctrdata->set = ctrset;
+ ctrdata->res1 = 0;
+ ctrset_size = cf_diag_ctrset_size(ctrset, &cpuhw->info);
+
+ if (ctrset_size) { /* Save data */
+ need = ctrset_size * sizeof(u64) + sizeof(*ctrdata);
+ if (need <= room)
+ rc = ctr_stcctm(ctrset, ctrset_size,
+ (u64 *)(ctrdata + 1));
+ if (rc != 3)
+ ctrdata->ctr = ctrset_size;
+ else
+ need = 0;
+ }
+
+ debug_sprintf_event(cf_diag_dbg, 6,
+ "%s ctrset %d ctrset_size %zu cfvn %d csvn %d"
+ " need %zd rc:%d\n",
+ __func__, ctrset, ctrset_size, cpuhw->info.cfvn,
+ cpuhw->info.csvn, need, rc);
+ return need;
+}
+
+/* Read out all counter sets and save them in the provided data buffer.
+ * The last 64 byte host an artificial trailer entry.
+ */
+static size_t cf_diag_getctr(void *data, size_t sz, unsigned long auth)
+{
+ struct cf_trailer_entry *trailer;
+ size_t offset = 0, done;
+ int i;
+
+ memset(data, 0, sz);
+ sz -= sizeof(*trailer); /* Always room for trailer */
+ for (i = CPUMF_CTR_SET_BASIC; i < CPUMF_CTR_SET_MAX; ++i) {
+ struct cf_ctrset_entry *ctrdata = data + offset;
+
+ if (!(auth & cpumf_ctr_ctl[i]))
+ continue; /* Counter set not authorized */
+
+ done = cf_diag_getctrset(ctrdata, i, sz - offset);
+ offset += done;
+ debug_sprintf_event(cf_diag_dbg, 6,
+ "%s ctrset %d offset %zu done %zu\n",
+ __func__, i, offset, done);
+ }
+ trailer = data + offset;
+ cf_diag_trailer(trailer);
+ return offset + sizeof(*trailer);
+}
+
+/* Calculate the difference for each counter in a counter set. */
+static void cf_diag_diffctrset(u64 *pstart, u64 *pstop, int counters)
+{
+ for (; --counters >= 0; ++pstart, ++pstop)
+ if (*pstop >= *pstart)
+ *pstop -= *pstart;
+ else
+ *pstop = *pstart - *pstop;
+}
+
+/* Scan the counter sets and calculate the difference of each counter
+ * in each set. The result is the increment of each counter during the
+ * period the counter set has been activated.
+ *
+ * Return true on success.
+ */
+static int cf_diag_diffctr(struct cf_diag_csd *csd, unsigned long auth)
+{
+ struct cf_trailer_entry *trailer_start, *trailer_stop;
+ struct cf_ctrset_entry *ctrstart, *ctrstop;
+ size_t offset = 0;
+
+ auth &= (1 << CPUMF_LCCTL_ENABLE_SHIFT) - 1;
+ do {
+ ctrstart = (struct cf_ctrset_entry *)(csd->start + offset);
+ ctrstop = (struct cf_ctrset_entry *)(csd->data + offset);
+
+ if (memcmp(ctrstop, ctrstart, sizeof(*ctrstop))) {
+ pr_err("cpum_cf_diag counter set compare error "
+ "in set %i\n", ctrstart->set);
+ return 0;
+ }
+ auth &= ~cpumf_ctr_ctl[ctrstart->set];
+ if (ctrstart->def == CF_DIAG_CTRSET_DEF) {
+ cf_diag_diffctrset((u64 *)(ctrstart + 1),
+ (u64 *)(ctrstop + 1), ctrstart->ctr);
+ offset += ctrstart->ctr * sizeof(u64) +
+ sizeof(*ctrstart);
+ }
+ debug_sprintf_event(cf_diag_dbg, 6,
+ "%s set %d ctr %d offset %zu auth %lx\n",
+ __func__, ctrstart->set, ctrstart->ctr,
+ offset, auth);
+ } while (ctrstart->def && auth);
+
+ /* Save time_stamp from start of event in stop's trailer */
+ trailer_start = (struct cf_trailer_entry *)(csd->start + offset);
+ trailer_stop = (struct cf_trailer_entry *)(csd->data + offset);
+ trailer_stop->progusage[0] = trailer_start->timestamp;
+
+ return 1;
+}
+
+/* Create perf event sample with the counter sets as raw data. The sample
+ * is then pushed to the event subsystem and the function checks for
+ * possible event overflows. If an event overflow occurs, the PMU is
+ * stopped.
+ *
+ * Return non-zero if an event overflow occurred.
+ */
+static int cf_diag_push_sample(struct perf_event *event,
+ struct cf_diag_csd *csd)
+{
+ struct perf_sample_data data;
+ struct perf_raw_record raw;
+ struct pt_regs regs;
+ int overflow;
+
+ /* Setup perf sample */
+ perf_sample_data_init(&data, 0, event->hw.last_period);
+ memset(&regs, 0, sizeof(regs));
+ memset(&raw, 0, sizeof(raw));
+
+ if (event->attr.sample_type & PERF_SAMPLE_CPU)
+ data.cpu_entry.cpu = event->cpu;
+ if (event->attr.sample_type & PERF_SAMPLE_RAW) {
+ raw.frag.size = csd->used;
+ raw.frag.data = csd->data;
+ raw.size = csd->used;
+ data.raw = &raw;
+ }
+
+ overflow = perf_event_overflow(event, &data, &regs);
+ debug_sprintf_event(cf_diag_dbg, 6,
+ "%s event %p cpu %d sample_type %#llx raw %d "
+ "ov %d\n", __func__, event, event->cpu,
+ event->attr.sample_type, raw.size, overflow);
+ if (overflow)
+ event->pmu->stop(event, 0);
+
+ perf_event_update_userpage(event);
+ return overflow;
+}
+
+static void cf_diag_start(struct perf_event *event, int flags)
+{
+ struct cpu_cf_events *cpuhw = this_cpu_ptr(&cpu_cf_events);
+ struct cf_diag_csd *csd = this_cpu_ptr(&cf_diag_csd);
+ struct hw_perf_event *hwc = &event->hw;
+
+ debug_sprintf_event(cf_diag_dbg, 5,
+ "%s event %p cpu %d flags %#x hwc-state %#x\n",
+ __func__, event, event->cpu, flags, hwc->state);
+ if (WARN_ON_ONCE(!(hwc->state & PERF_HES_STOPPED)))
+ return;
+
+ /* (Re-)enable and activate all counter sets */
+ lcctl(0); /* Reset counter sets */
+ hwc->state = 0;
+ ctr_set_multiple_enable(&cpuhw->state, hwc->config_base);
+ lcctl(cpuhw->state); /* Enable counter sets */
+ csd->used = cf_diag_getctr(csd->start, sizeof(csd->start),
+ event->hw.config_base);
+ ctr_set_multiple_start(&cpuhw->state, hwc->config_base);
+ /* Function cf_diag_enable() starts the counter sets. */
+}
+
+static void cf_diag_stop(struct perf_event *event, int flags)
+{
+ struct cpu_cf_events *cpuhw = this_cpu_ptr(&cpu_cf_events);
+ struct cf_diag_csd *csd = this_cpu_ptr(&cf_diag_csd);
+ struct hw_perf_event *hwc = &event->hw;
+
+ debug_sprintf_event(cf_diag_dbg, 5,
+ "%s event %p cpu %d flags %#x hwc-state %#x\n",
+ __func__, event, event->cpu, flags, hwc->state);
+
+ /* Deactivate all counter sets */
+ ctr_set_multiple_stop(&cpuhw->state, hwc->config_base);
+ local64_inc(&event->count);
+ csd->used = cf_diag_getctr(csd->data, sizeof(csd->data),
+ event->hw.config_base);
+ if (cf_diag_diffctr(csd, event->hw.config_base))
+ cf_diag_push_sample(event, csd);
+ hwc->state |= PERF_HES_STOPPED;
+}
+
+static int cf_diag_add(struct perf_event *event, int flags)
+{
+ struct cpu_cf_events *cpuhw = this_cpu_ptr(&cpu_cf_events);
+ int err = 0;
+
+ debug_sprintf_event(cf_diag_dbg, 5,
+ "%s event %p cpu %d flags %#x cpuhw:%p\n",
+ __func__, event, event->cpu, flags, cpuhw);
+
+ if (cpuhw->flags & PMU_F_IN_USE) {
+ err = -EAGAIN;
+ goto out;
+ }
+
+ event->hw.state = PERF_HES_UPTODATE | PERF_HES_STOPPED;
+
+ cpuhw->flags |= PMU_F_IN_USE;
+ if (flags & PERF_EF_START)
+ cf_diag_start(event, PERF_EF_RELOAD);
+out:
+ debug_sprintf_event(cf_diag_dbg, 5, "%s err %d\n", __func__, err);
+ return err;
+}
+
+static void cf_diag_del(struct perf_event *event, int flags)
+{
+ struct cpu_cf_events *cpuhw = this_cpu_ptr(&cpu_cf_events);
+
+ debug_sprintf_event(cf_diag_dbg, 5,
+ "%s event %p cpu %d flags %#x\n",
+ __func__, event, event->cpu, flags);
+
+ cf_diag_stop(event, PERF_EF_UPDATE);
+ ctr_set_multiple_stop(&cpuhw->state, event->hw.config_base);
+ ctr_set_multiple_disable(&cpuhw->state, event->hw.config_base);
+ cpuhw->flags &= ~PMU_F_IN_USE;
+}
+
+CPUMF_EVENT_ATTR(CF_DIAG, CF_DIAG, PERF_EVENT_CPUM_CF_DIAG);
+
+static struct attribute *cf_diag_events_attr[] = {
+ CPUMF_EVENT_PTR(CF_DIAG, CF_DIAG),
+ NULL,
+};
+
+PMU_FORMAT_ATTR(event, "config:0-63");
+
+static struct attribute *cf_diag_format_attr[] = {
+ &format_attr_event.attr,
+ NULL,
+};
+
+static struct attribute_group cf_diag_events_group = {
+ .name = "events",
+ .attrs = cf_diag_events_attr,
+};
+static struct attribute_group cf_diag_format_group = {
+ .name = "format",
+ .attrs = cf_diag_format_attr,
+};
+static const struct attribute_group *cf_diag_attr_groups[] = {
+ &cf_diag_events_group,
+ &cf_diag_format_group,
+ NULL,
+};
+
+/* Performance monitoring unit for s390x */
+static struct pmu cf_diag = {
+ .task_ctx_nr = perf_sw_context,
+ .pmu_enable = cf_diag_enable,
+ .pmu_disable = cf_diag_disable,
+ .event_init = cf_diag_event_init,
+ .add = cf_diag_add,
+ .del = cf_diag_del,
+ .start = cf_diag_start,
+ .stop = cf_diag_stop,
+ .read = cf_diag_read,
+
+ .attr_groups = cf_diag_attr_groups
+};
+
+/* Get the CPU speed, try sampling facility first and CPU attributes second. */
+static void cf_diag_get_cpu_speed(void)
+{
+ if (cpum_sf_avail()) { /* Sampling facility first */
+ struct hws_qsi_info_block si;
+
+ memset(&si, 0, sizeof(si));
+ if (!qsi(&si)) {
+ cf_diag_cpu_speed = si.cpu_speed;
+ return;
+ }
+ }
+
+ if (test_facility(34)) { /* CPU speed extract static part */
+ unsigned long mhz = __ecag(ECAG_CPU_ATTRIBUTE, 0);
+
+ if (mhz != -1UL)
+ cf_diag_cpu_speed = mhz & 0xffffffff;
+ }
+}
+
+/* Initialize the counter set PMU to generate complete counter set data as
+ * event raw data. This relies on the CPU Measurement Counter Facility device
+ * already being loaded and initialized.
+ */
+static int __init cf_diag_init(void)
+{
+ struct cpumf_ctr_info info;
+ size_t need;
+ int rc;
+
+ if (!kernel_cpumcf_avail() || !stccm_avail() || qctri(&info))
+ return -ENODEV;
+ cf_diag_get_cpu_speed();
+
+ /* Make sure the counter set data fits into predefined buffer. */
+ need = cf_diag_ctrset_maxsize(&info);
+ if (need > sizeof(((struct cf_diag_csd *)0)->start)) {
+ pr_err("Insufficient memory for PMU(cpum_cf_diag) need=%zu\n",
+ need);
+ return -ENOMEM;
+ }
+
+ /* Setup s390dbf facility */
+ cf_diag_dbg = debug_register(KMSG_COMPONENT, 2, 1, 128);
+ if (!cf_diag_dbg) {
+ pr_err("Registration of s390dbf(cpum_cf_diag) failed\n");
+ return -ENOMEM;
+ }
+ debug_register_view(cf_diag_dbg, &debug_sprintf_view);
+
+ rc = perf_pmu_register(&cf_diag, "cpum_cf_diag", PERF_TYPE_RAW);
+ if (rc) {
+ debug_unregister_view(cf_diag_dbg, &debug_sprintf_view);
+ debug_unregister(cf_diag_dbg);
+ pr_err("Registration of PMU(cpum_cf_diag) failed with rc=%i\n",
+ rc);
+ }
+ return rc;
+}
+arch_initcall(cf_diag_init);
diff --git a/arch/s390/kernel/perf_cpum_cf_events.c b/arch/s390/kernel/perf_cpum_cf_events.c
index d63fb3c56b8a..b45238c89728 100644
--- a/arch/s390/kernel/perf_cpum_cf_events.c
+++ b/arch/s390/kernel/perf_cpum_cf_events.c
@@ -6,6 +6,7 @@
#include <linux/slab.h>
#include <linux/perf_event.h>
+#include <asm/cpu_mf.h>
/* BEGIN: CPUM_CF COUNTER DEFINITIONS =================================== */
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 7ed90a759135..12934e8fbb91 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -369,7 +369,7 @@ void __init arch_call_rest_init(void)
: : [_frame] "a" (frame));
}
-static void __init setup_lowcore(void)
+static void __init setup_lowcore_dat_off(void)
{
struct lowcore *lc;
@@ -380,19 +380,16 @@ static void __init setup_lowcore(void)
lc = memblock_alloc_low(sizeof(*lc), sizeof(*lc));
lc->restart_psw.mask = PSW_KERNEL_BITS;
lc->restart_psw.addr = (unsigned long) restart_int_handler;
- lc->external_new_psw.mask = PSW_KERNEL_BITS |
- PSW_MASK_DAT | PSW_MASK_MCHECK;
+ lc->external_new_psw.mask = PSW_KERNEL_BITS | PSW_MASK_MCHECK;
lc->external_new_psw.addr = (unsigned long) ext_int_handler;
lc->svc_new_psw.mask = PSW_KERNEL_BITS |
- PSW_MASK_DAT | PSW_MASK_IO | PSW_MASK_EXT | PSW_MASK_MCHECK;
+ PSW_MASK_IO | PSW_MASK_EXT | PSW_MASK_MCHECK;
lc->svc_new_psw.addr = (unsigned long) system_call;
- lc->program_new_psw.mask = PSW_KERNEL_BITS |
- PSW_MASK_DAT | PSW_MASK_MCHECK;
+ lc->program_new_psw.mask = PSW_KERNEL_BITS | PSW_MASK_MCHECK;
lc->program_new_psw.addr = (unsigned long) pgm_check_handler;
lc->mcck_new_psw.mask = PSW_KERNEL_BITS;
lc->mcck_new_psw.addr = (unsigned long) mcck_int_handler;
- lc->io_new_psw.mask = PSW_KERNEL_BITS |
- PSW_MASK_DAT | PSW_MASK_MCHECK;
+ lc->io_new_psw.mask = PSW_KERNEL_BITS | PSW_MASK_MCHECK;
lc->io_new_psw.addr = (unsigned long) io_int_handler;
lc->clock_comparator = clock_comparator_max;
lc->nodat_stack = ((unsigned long) &init_thread_union)
@@ -452,6 +449,16 @@ static void __init setup_lowcore(void)
lowcore_ptr[0] = lc;
}
+static void __init setup_lowcore_dat_on(void)
+{
+ __ctl_clear_bit(0, 28);
+ S390_lowcore.external_new_psw.mask |= PSW_MASK_DAT;
+ S390_lowcore.svc_new_psw.mask |= PSW_MASK_DAT;
+ S390_lowcore.program_new_psw.mask |= PSW_MASK_DAT;
+ S390_lowcore.io_new_psw.mask |= PSW_MASK_DAT;
+ __ctl_set_bit(0, 28);
+}
+
static struct resource code_resource = {
.name = "Kernel code",
.flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM,
@@ -794,18 +801,9 @@ static void __init reserve_kernel(void)
{
unsigned long start_pfn = PFN_UP(__pa(_end));
-#ifdef CONFIG_DMA_API_DEBUG
- /*
- * DMA_API_DEBUG code stumbles over addresses from the
- * range [PARMAREA_END, _stext]. Mark the memory as reserved
- * so it is not used for CONFIG_DMA_API_DEBUG=y.
- */
- memblock_reserve(0, PFN_PHYS(start_pfn));
-#else
memblock_reserve(0, PARMAREA_END);
memblock_reserve((unsigned long)_stext, PFN_PHYS(start_pfn)
- (unsigned long)_stext);
-#endif
}
static void __init setup_memory(void)
@@ -990,6 +988,25 @@ static void __init setup_task_size(void)
}
/*
+ * Issue diagnose 318 to set the control program name and
+ * version codes.
+ */
+static void __init setup_control_program_code(void)
+{
+ union diag318_info diag318_info = {
+ .cpnc = CPNC_LINUX,
+ .cpvc_linux = 0,
+ .cpvc_distro = {0},
+ };
+
+ if (!sclp.has_diag318)
+ return;
+
+ diag_stat_inc(DIAG_STAT_X318);
+ asm volatile("diag %0,0,0x318\n" : : "d" (diag318_info.val));
+}
+
+/*
* Setup function called from init/main.c just after the banner
* was printed.
*/
@@ -1033,6 +1050,7 @@ void __init setup_arch(char **cmdline_p)
os_info_init();
setup_ipl();
setup_task_size();
+ setup_control_program_code();
/* Do some memory reservations *before* memory is added to memblock */
reserve_memory_end();
@@ -1072,7 +1090,7 @@ void __init setup_arch(char **cmdline_p)
#endif
setup_resources();
- setup_lowcore();
+ setup_lowcore_dat_off();
smp_fill_possible_mask();
cpu_detect_mhz_feature();
cpu_init();
@@ -1085,6 +1103,12 @@ void __init setup_arch(char **cmdline_p)
*/
paging_init();
+ /*
+ * After paging_init created the kernel page table, the new PSWs
+ * in lowcore can now run with DAT enabled.
+ */
+ setup_lowcore_dat_on();
+
/* Setup default console */
conmode_default();
set_preferred_console();
diff --git a/arch/s390/kernel/swsusp.S b/arch/s390/kernel/swsusp.S
index b6796e616812..993100c31d65 100644
--- a/arch/s390/kernel/swsusp.S
+++ b/arch/s390/kernel/swsusp.S
@@ -124,13 +124,13 @@ ENTRY(swsusp_arch_resume)
lghi %r2,1
brasl %r14,arch_set_page_states
- /* Deactivate DAT */
- stnsm __SF_EMPTY(%r15),0xfb
-
/* Set prefix page to zero */
xc __SF_EMPTY(4,%r15),__SF_EMPTY(%r15)
spx __SF_EMPTY(%r15)
+ /* Deactivate DAT */
+ stnsm __SF_EMPTY(%r15),0xfb
+
/* Restore saved image */
larl %r1,restore_pblist
lg %r1,0(%r1)
diff --git a/arch/s390/kernel/sys_s390.c b/arch/s390/kernel/sys_s390.c
index 31cefe0c28c0..202fa73ac167 100644
--- a/arch/s390/kernel/sys_s390.c
+++ b/arch/s390/kernel/sys_s390.c
@@ -58,6 +58,7 @@ out:
return error;
}
+#ifdef CONFIG_SYSVIPC
/*
* sys_ipc() is the de-multiplexer for the SysV IPC calls.
*/
@@ -74,19 +75,28 @@ SYSCALL_DEFINE5(s390_ipc, uint, call, int, first, unsigned long, second,
* Therefore we can call the generic variant by simply passing the
* third parameter also as fifth parameter.
*/
- return sys_ipc(call, first, second, third, ptr, third);
+ return ksys_ipc(call, first, second, third, ptr, third);
}
+#endif /* CONFIG_SYSVIPC */
SYSCALL_DEFINE1(s390_personality, unsigned int, personality)
{
- unsigned int ret;
+ unsigned int ret = current->personality;
if (personality(current->personality) == PER_LINUX32 &&
personality(personality) == PER_LINUX)
personality |= PER_LINUX32;
- ret = sys_personality(personality);
+
+ if (personality != 0xffffffff)
+ set_personality(personality);
+
if (personality(ret) == PER_LINUX32)
ret &= ~PER_LINUX32;
return ret;
}
+
+SYSCALL_DEFINE0(ni_syscall)
+{
+ return -ENOSYS;
+}
diff --git a/arch/s390/kernel/syscalls/syscall.tbl b/arch/s390/kernel/syscalls/syscall.tbl
index 022fc099b628..7413fd318e2a 100644
--- a/arch/s390/kernel/syscalls/syscall.tbl
+++ b/arch/s390/kernel/syscalls/syscall.tbl
@@ -15,86 +15,86 @@
5 common open sys_open compat_sys_open
6 common close sys_close sys_close
7 common restart_syscall sys_restart_syscall sys_restart_syscall
-8 common creat sys_creat compat_sys_creat
-9 common link sys_link compat_sys_link
-10 common unlink sys_unlink compat_sys_unlink
+8 common creat sys_creat sys_creat
+9 common link sys_link sys_link
+10 common unlink sys_unlink sys_unlink
11 common execve sys_execve compat_sys_execve
-12 common chdir sys_chdir compat_sys_chdir
+12 common chdir sys_chdir sys_chdir
13 32 time - compat_sys_time
-14 common mknod sys_mknod compat_sys_mknod
-15 common chmod sys_chmod compat_sys_chmod
-16 32 lchown - compat_sys_s390_lchown16
+14 common mknod sys_mknod sys_mknod
+15 common chmod sys_chmod sys_chmod
+16 32 lchown - sys_lchown16
19 common lseek sys_lseek compat_sys_lseek
20 common getpid sys_getpid sys_getpid
21 common mount sys_mount compat_sys_mount
-22 common umount sys_oldumount compat_sys_oldumount
-23 32 setuid - compat_sys_s390_setuid16
-24 32 getuid - compat_sys_s390_getuid16
+22 common umount sys_oldumount sys_oldumount
+23 32 setuid - sys_setuid16
+24 32 getuid - sys_getuid16
25 32 stime - compat_sys_stime
26 common ptrace sys_ptrace compat_sys_ptrace
27 common alarm sys_alarm sys_alarm
29 common pause sys_pause sys_pause
30 common utime sys_utime compat_sys_utime
-33 common access sys_access compat_sys_access
+33 common access sys_access sys_access
34 common nice sys_nice sys_nice
36 common sync sys_sync sys_sync
37 common kill sys_kill sys_kill
-38 common rename sys_rename compat_sys_rename
-39 common mkdir sys_mkdir compat_sys_mkdir
-40 common rmdir sys_rmdir compat_sys_rmdir
+38 common rename sys_rename sys_rename
+39 common mkdir sys_mkdir sys_mkdir
+40 common rmdir sys_rmdir sys_rmdir
41 common dup sys_dup sys_dup
-42 common pipe sys_pipe compat_sys_pipe
+42 common pipe sys_pipe sys_pipe
43 common times sys_times compat_sys_times
-45 common brk sys_brk compat_sys_brk
-46 32 setgid - compat_sys_s390_setgid16
-47 32 getgid - compat_sys_s390_getgid16
-48 common signal sys_signal compat_sys_signal
-49 32 geteuid - compat_sys_s390_geteuid16
-50 32 getegid - compat_sys_s390_getegid16
-51 common acct sys_acct compat_sys_acct
-52 common umount2 sys_umount compat_sys_umount
+45 common brk sys_brk sys_brk
+46 32 setgid - sys_setgid16
+47 32 getgid - sys_getgid16
+48 common signal sys_signal sys_signal
+49 32 geteuid - sys_geteuid16
+50 32 getegid - sys_getegid16
+51 common acct sys_acct sys_acct
+52 common umount2 sys_umount sys_umount
54 common ioctl sys_ioctl compat_sys_ioctl
55 common fcntl sys_fcntl compat_sys_fcntl
57 common setpgid sys_setpgid sys_setpgid
60 common umask sys_umask sys_umask
-61 common chroot sys_chroot compat_sys_chroot
+61 common chroot sys_chroot sys_chroot
62 common ustat sys_ustat compat_sys_ustat
63 common dup2 sys_dup2 sys_dup2
64 common getppid sys_getppid sys_getppid
65 common getpgrp sys_getpgrp sys_getpgrp
66 common setsid sys_setsid sys_setsid
67 common sigaction sys_sigaction compat_sys_sigaction
-70 32 setreuid - compat_sys_s390_setreuid16
-71 32 setregid - compat_sys_s390_setregid16
-72 common sigsuspend sys_sigsuspend compat_sys_sigsuspend
+70 32 setreuid - sys_setreuid16
+71 32 setregid - sys_setregid16
+72 common sigsuspend sys_sigsuspend sys_sigsuspend
73 common sigpending sys_sigpending compat_sys_sigpending
-74 common sethostname sys_sethostname compat_sys_sethostname
+74 common sethostname sys_sethostname sys_sethostname
75 common setrlimit sys_setrlimit compat_sys_setrlimit
76 32 getrlimit - compat_sys_old_getrlimit
77 common getrusage sys_getrusage compat_sys_getrusage
78 common gettimeofday sys_gettimeofday compat_sys_gettimeofday
79 common settimeofday sys_settimeofday compat_sys_settimeofday
-80 32 getgroups - compat_sys_s390_getgroups16
-81 32 setgroups - compat_sys_s390_setgroups16
-83 common symlink sys_symlink compat_sys_symlink
-85 common readlink sys_readlink compat_sys_readlink
-86 common uselib sys_uselib compat_sys_uselib
-87 common swapon sys_swapon compat_sys_swapon
-88 common reboot sys_reboot compat_sys_reboot
+80 32 getgroups - sys_getgroups16
+81 32 setgroups - sys_setgroups16
+83 common symlink sys_symlink sys_symlink
+85 common readlink sys_readlink sys_readlink
+86 common uselib sys_uselib sys_uselib
+87 common swapon sys_swapon sys_swapon
+88 common reboot sys_reboot sys_reboot
89 common readdir - compat_sys_old_readdir
90 common mmap sys_old_mmap compat_sys_s390_old_mmap
-91 common munmap sys_munmap compat_sys_munmap
+91 common munmap sys_munmap sys_munmap
92 common truncate sys_truncate compat_sys_truncate
93 common ftruncate sys_ftruncate compat_sys_ftruncate
94 common fchmod sys_fchmod sys_fchmod
-95 32 fchown - compat_sys_s390_fchown16
+95 32 fchown - sys_fchown16
96 common getpriority sys_getpriority sys_getpriority
97 common setpriority sys_setpriority sys_setpriority
99 common statfs sys_statfs compat_sys_statfs
100 common fstatfs sys_fstatfs compat_sys_fstatfs
101 32 ioperm - -
102 common socketcall sys_socketcall compat_sys_socketcall
-103 common syslog sys_syslog compat_sys_syslog
+103 common syslog sys_syslog sys_syslog
104 common setitimer sys_setitimer compat_sys_setitimer
105 common getitimer sys_getitimer compat_sys_getitimer
106 common stat sys_newstat compat_sys_newstat
@@ -104,63 +104,63 @@
111 common vhangup sys_vhangup sys_vhangup
112 common idle - -
114 common wait4 sys_wait4 compat_sys_wait4
-115 common swapoff sys_swapoff compat_sys_swapoff
+115 common swapoff sys_swapoff sys_swapoff
116 common sysinfo sys_sysinfo compat_sys_sysinfo
117 common ipc sys_s390_ipc compat_sys_s390_ipc
118 common fsync sys_fsync sys_fsync
119 common sigreturn sys_sigreturn compat_sys_sigreturn
-120 common clone sys_clone compat_sys_clone
-121 common setdomainname sys_setdomainname compat_sys_setdomainname
-122 common uname sys_newuname compat_sys_newuname
+120 common clone sys_clone sys_clone
+121 common setdomainname sys_setdomainname sys_setdomainname
+122 common uname sys_newuname sys_newuname
124 common adjtimex sys_adjtimex compat_sys_adjtimex
-125 common mprotect sys_mprotect compat_sys_mprotect
+125 common mprotect sys_mprotect sys_mprotect
126 common sigprocmask sys_sigprocmask compat_sys_sigprocmask
127 common create_module - -
-128 common init_module sys_init_module compat_sys_init_module
-129 common delete_module sys_delete_module compat_sys_delete_module
+128 common init_module sys_init_module sys_init_module
+129 common delete_module sys_delete_module sys_delete_module
130 common get_kernel_syms - -
-131 common quotactl sys_quotactl compat_sys_quotactl
+131 common quotactl sys_quotactl sys_quotactl
132 common getpgid sys_getpgid sys_getpgid
133 common fchdir sys_fchdir sys_fchdir
-134 common bdflush sys_bdflush compat_sys_bdflush
-135 common sysfs sys_sysfs compat_sys_sysfs
+134 common bdflush sys_bdflush sys_bdflush
+135 common sysfs sys_sysfs sys_sysfs
136 common personality sys_s390_personality sys_s390_personality
137 common afs_syscall - -
-138 32 setfsuid - compat_sys_s390_setfsuid16
-139 32 setfsgid - compat_sys_s390_setfsgid16
-140 32 _llseek - compat_sys_llseek
+138 32 setfsuid - sys_setfsuid16
+139 32 setfsgid - sys_setfsgid16
+140 32 _llseek - sys_llseek
141 common getdents sys_getdents compat_sys_getdents
142 32 _newselect - compat_sys_select
142 64 select sys_select -
143 common flock sys_flock sys_flock
-144 common msync sys_msync compat_sys_msync
+144 common msync sys_msync sys_msync
145 common readv sys_readv compat_sys_readv
146 common writev sys_writev compat_sys_writev
147 common getsid sys_getsid sys_getsid
148 common fdatasync sys_fdatasync sys_fdatasync
149 common _sysctl sys_sysctl compat_sys_sysctl
-150 common mlock sys_mlock compat_sys_mlock
-151 common munlock sys_munlock compat_sys_munlock
+150 common mlock sys_mlock sys_mlock
+151 common munlock sys_munlock sys_munlock
152 common mlockall sys_mlockall sys_mlockall
153 common munlockall sys_munlockall sys_munlockall
-154 common sched_setparam sys_sched_setparam compat_sys_sched_setparam
-155 common sched_getparam sys_sched_getparam compat_sys_sched_getparam
-156 common sched_setscheduler sys_sched_setscheduler compat_sys_sched_setscheduler
+154 common sched_setparam sys_sched_setparam sys_sched_setparam
+155 common sched_getparam sys_sched_getparam sys_sched_getparam
+156 common sched_setscheduler sys_sched_setscheduler sys_sched_setscheduler
157 common sched_getscheduler sys_sched_getscheduler sys_sched_getscheduler
158 common sched_yield sys_sched_yield sys_sched_yield
159 common sched_get_priority_max sys_sched_get_priority_max sys_sched_get_priority_max
160 common sched_get_priority_min sys_sched_get_priority_min sys_sched_get_priority_min
161 common sched_rr_get_interval sys_sched_rr_get_interval compat_sys_sched_rr_get_interval
162 common nanosleep sys_nanosleep compat_sys_nanosleep
-163 common mremap sys_mremap compat_sys_mremap
-164 32 setresuid - compat_sys_s390_setresuid16
-165 32 getresuid - compat_sys_s390_getresuid16
+163 common mremap sys_mremap sys_mremap
+164 32 setresuid - sys_setresuid16
+165 32 getresuid - sys_getresuid16
167 common query_module - -
-168 common poll sys_poll compat_sys_poll
+168 common poll sys_poll sys_poll
169 common nfsservctl - -
-170 32 setresgid - compat_sys_s390_setresgid16
-171 32 getresgid - compat_sys_s390_getresgid16
-172 common prctl sys_prctl compat_sys_prctl
+170 32 setresgid - sys_setresgid16
+171 32 getresgid - sys_getresgid16
+172 common prctl sys_prctl sys_prctl
173 common rt_sigreturn sys_rt_sigreturn compat_sys_rt_sigreturn
174 common rt_sigaction sys_rt_sigaction compat_sys_rt_sigaction
175 common rt_sigprocmask sys_rt_sigprocmask compat_sys_rt_sigprocmask
@@ -170,10 +170,10 @@
179 common rt_sigsuspend sys_rt_sigsuspend compat_sys_rt_sigsuspend
180 common pread64 sys_pread64 compat_sys_s390_pread64
181 common pwrite64 sys_pwrite64 compat_sys_s390_pwrite64
-182 32 chown - compat_sys_s390_chown16
-183 common getcwd sys_getcwd compat_sys_getcwd
-184 common capget sys_capget compat_sys_capget
-185 common capset sys_capset compat_sys_capset
+182 32 chown - sys_chown16
+183 common getcwd sys_getcwd sys_getcwd
+184 common capget sys_capget sys_capget
+185 common capset sys_capset sys_capset
186 common sigaltstack sys_sigaltstack compat_sys_sigaltstack
187 common sendfile sys_sendfile64 compat_sys_sendfile
188 common getpmsg - -
@@ -187,7 +187,7 @@
195 32 stat64 - compat_sys_s390_stat64
196 32 lstat64 - compat_sys_s390_lstat64
197 32 fstat64 - compat_sys_s390_fstat64
-198 32 lchown32 - compat_sys_lchown
+198 32 lchown32 - sys_lchown
198 64 lchown sys_lchown -
199 32 getuid32 - sys_getuid
199 64 getuid sys_getuid -
@@ -201,21 +201,21 @@
203 64 setreuid sys_setreuid -
204 32 setregid32 - sys_setregid
204 64 setregid sys_setregid -
-205 32 getgroups32 - compat_sys_getgroups
+205 32 getgroups32 - sys_getgroups
205 64 getgroups sys_getgroups -
-206 32 setgroups32 - compat_sys_setgroups
+206 32 setgroups32 - sys_setgroups
206 64 setgroups sys_setgroups -
207 32 fchown32 - sys_fchown
207 64 fchown sys_fchown -
208 32 setresuid32 - sys_setresuid
208 64 setresuid sys_setresuid -
-209 32 getresuid32 - compat_sys_getresuid
+209 32 getresuid32 - sys_getresuid
209 64 getresuid sys_getresuid -
210 32 setresgid32 - sys_setresgid
210 64 setresgid sys_setresgid -
-211 32 getresgid32 - compat_sys_getresgid
+211 32 getresgid32 - sys_getresgid
211 64 getresgid sys_getresgid -
-212 32 chown32 - compat_sys_chown
+212 32 chown32 - sys_chown
212 64 chown sys_chown -
213 32 setuid32 - sys_setuid
213 64 setuid sys_setuid -
@@ -225,25 +225,25 @@
215 64 setfsuid sys_setfsuid -
216 32 setfsgid32 - sys_setfsgid
216 64 setfsgid sys_setfsgid -
-217 common pivot_root sys_pivot_root compat_sys_pivot_root
-218 common mincore sys_mincore compat_sys_mincore
-219 common madvise sys_madvise compat_sys_madvise
-220 common getdents64 sys_getdents64 compat_sys_getdents64
+217 common pivot_root sys_pivot_root sys_pivot_root
+218 common mincore sys_mincore sys_mincore
+219 common madvise sys_madvise sys_madvise
+220 common getdents64 sys_getdents64 sys_getdents64
221 32 fcntl64 - compat_sys_fcntl64
222 common readahead sys_readahead compat_sys_s390_readahead
223 32 sendfile64 - compat_sys_sendfile64
-224 common setxattr sys_setxattr compat_sys_setxattr
-225 common lsetxattr sys_lsetxattr compat_sys_lsetxattr
-226 common fsetxattr sys_fsetxattr compat_sys_fsetxattr
-227 common getxattr sys_getxattr compat_sys_getxattr
-228 common lgetxattr sys_lgetxattr compat_sys_lgetxattr
-229 common fgetxattr sys_fgetxattr compat_sys_fgetxattr
-230 common listxattr sys_listxattr compat_sys_listxattr
-231 common llistxattr sys_llistxattr compat_sys_llistxattr
-232 common flistxattr sys_flistxattr compat_sys_flistxattr
-233 common removexattr sys_removexattr compat_sys_removexattr
-234 common lremovexattr sys_lremovexattr compat_sys_lremovexattr
-235 common fremovexattr sys_fremovexattr compat_sys_fremovexattr
+224 common setxattr sys_setxattr sys_setxattr
+225 common lsetxattr sys_lsetxattr sys_lsetxattr
+226 common fsetxattr sys_fsetxattr sys_fsetxattr
+227 common getxattr sys_getxattr sys_getxattr
+228 common lgetxattr sys_lgetxattr sys_lgetxattr
+229 common fgetxattr sys_fgetxattr sys_fgetxattr
+230 common listxattr sys_listxattr sys_listxattr
+231 common llistxattr sys_llistxattr sys_llistxattr
+232 common flistxattr sys_flistxattr sys_flistxattr
+233 common removexattr sys_removexattr sys_removexattr
+234 common lremovexattr sys_lremovexattr sys_lremovexattr
+235 common fremovexattr sys_fremovexattr sys_fremovexattr
236 common gettid sys_gettid sys_gettid
237 common tkill sys_tkill sys_tkill
238 common futex sys_futex compat_sys_futex
@@ -251,15 +251,15 @@
240 common sched_getaffinity sys_sched_getaffinity compat_sys_sched_getaffinity
241 common tgkill sys_tgkill sys_tgkill
243 common io_setup sys_io_setup compat_sys_io_setup
-244 common io_destroy sys_io_destroy compat_sys_io_destroy
+244 common io_destroy sys_io_destroy sys_io_destroy
245 common io_getevents sys_io_getevents compat_sys_io_getevents
246 common io_submit sys_io_submit compat_sys_io_submit
-247 common io_cancel sys_io_cancel compat_sys_io_cancel
+247 common io_cancel sys_io_cancel sys_io_cancel
248 common exit_group sys_exit_group sys_exit_group
249 common epoll_create sys_epoll_create sys_epoll_create
-250 common epoll_ctl sys_epoll_ctl compat_sys_epoll_ctl
-251 common epoll_wait sys_epoll_wait compat_sys_epoll_wait
-252 common set_tid_address sys_set_tid_address compat_sys_set_tid_address
+250 common epoll_ctl sys_epoll_ctl sys_epoll_ctl
+251 common epoll_wait sys_epoll_wait sys_epoll_wait
+252 common set_tid_address sys_set_tid_address sys_set_tid_address
253 common fadvise64 sys_fadvise64_64 compat_sys_s390_fadvise64
254 common timer_create sys_timer_create compat_sys_timer_create
255 common timer_settime sys_timer_settime compat_sys_timer_settime
@@ -273,52 +273,52 @@
264 32 fadvise64_64 - compat_sys_s390_fadvise64_64
265 common statfs64 sys_statfs64 compat_sys_statfs64
266 common fstatfs64 sys_fstatfs64 compat_sys_fstatfs64
-267 common remap_file_pages sys_remap_file_pages compat_sys_remap_file_pages
+267 common remap_file_pages sys_remap_file_pages sys_remap_file_pages
268 common mbind sys_mbind compat_sys_mbind
269 common get_mempolicy sys_get_mempolicy compat_sys_get_mempolicy
270 common set_mempolicy sys_set_mempolicy compat_sys_set_mempolicy
271 common mq_open sys_mq_open compat_sys_mq_open
-272 common mq_unlink sys_mq_unlink compat_sys_mq_unlink
+272 common mq_unlink sys_mq_unlink sys_mq_unlink
273 common mq_timedsend sys_mq_timedsend compat_sys_mq_timedsend
274 common mq_timedreceive sys_mq_timedreceive compat_sys_mq_timedreceive
275 common mq_notify sys_mq_notify compat_sys_mq_notify
276 common mq_getsetattr sys_mq_getsetattr compat_sys_mq_getsetattr
277 common kexec_load sys_kexec_load compat_sys_kexec_load
-278 common add_key sys_add_key compat_sys_add_key
-279 common request_key sys_request_key compat_sys_request_key
+278 common add_key sys_add_key sys_add_key
+279 common request_key sys_request_key sys_request_key
280 common keyctl sys_keyctl compat_sys_keyctl
281 common waitid sys_waitid compat_sys_waitid
282 common ioprio_set sys_ioprio_set sys_ioprio_set
283 common ioprio_get sys_ioprio_get sys_ioprio_get
284 common inotify_init sys_inotify_init sys_inotify_init
-285 common inotify_add_watch sys_inotify_add_watch compat_sys_inotify_add_watch
+285 common inotify_add_watch sys_inotify_add_watch sys_inotify_add_watch
286 common inotify_rm_watch sys_inotify_rm_watch sys_inotify_rm_watch
287 common migrate_pages sys_migrate_pages compat_sys_migrate_pages
288 common openat sys_openat compat_sys_openat
-289 common mkdirat sys_mkdirat compat_sys_mkdirat
-290 common mknodat sys_mknodat compat_sys_mknodat
-291 common fchownat sys_fchownat compat_sys_fchownat
+289 common mkdirat sys_mkdirat sys_mkdirat
+290 common mknodat sys_mknodat sys_mknodat
+291 common fchownat sys_fchownat sys_fchownat
292 common futimesat sys_futimesat compat_sys_futimesat
293 32 fstatat64 - compat_sys_s390_fstatat64
293 64 newfstatat sys_newfstatat -
-294 common unlinkat sys_unlinkat compat_sys_unlinkat
-295 common renameat sys_renameat compat_sys_renameat
-296 common linkat sys_linkat compat_sys_linkat
-297 common symlinkat sys_symlinkat compat_sys_symlinkat
-298 common readlinkat sys_readlinkat compat_sys_readlinkat
-299 common fchmodat sys_fchmodat compat_sys_fchmodat
-300 common faccessat sys_faccessat compat_sys_faccessat
+294 common unlinkat sys_unlinkat sys_unlinkat
+295 common renameat sys_renameat sys_renameat
+296 common linkat sys_linkat sys_linkat
+297 common symlinkat sys_symlinkat sys_symlinkat
+298 common readlinkat sys_readlinkat sys_readlinkat
+299 common fchmodat sys_fchmodat sys_fchmodat
+300 common faccessat sys_faccessat sys_faccessat
301 common pselect6 sys_pselect6 compat_sys_pselect6
302 common ppoll sys_ppoll compat_sys_ppoll
-303 common unshare sys_unshare compat_sys_unshare
+303 common unshare sys_unshare sys_unshare
304 common set_robust_list sys_set_robust_list compat_sys_set_robust_list
305 common get_robust_list sys_get_robust_list compat_sys_get_robust_list
-306 common splice sys_splice compat_sys_splice
+306 common splice sys_splice sys_splice
307 common sync_file_range sys_sync_file_range compat_sys_s390_sync_file_range
-308 common tee sys_tee compat_sys_tee
+308 common tee sys_tee sys_tee
309 common vmsplice sys_vmsplice compat_sys_vmsplice
310 common move_pages sys_move_pages compat_sys_move_pages
-311 common getcpu sys_getcpu compat_sys_getcpu
+311 common getcpu sys_getcpu sys_getcpu
312 common epoll_pwait sys_epoll_pwait compat_sys_epoll_pwait
313 common utimes sys_utimes compat_sys_utimes
314 common fallocate sys_fallocate compat_sys_s390_fallocate
@@ -332,17 +332,17 @@
322 common signalfd4 sys_signalfd4 compat_sys_signalfd4
323 common eventfd2 sys_eventfd2 sys_eventfd2
324 common inotify_init1 sys_inotify_init1 sys_inotify_init1
-325 common pipe2 sys_pipe2 compat_sys_pipe2
+325 common pipe2 sys_pipe2 sys_pipe2
326 common dup3 sys_dup3 sys_dup3
327 common epoll_create1 sys_epoll_create1 sys_epoll_create1
328 common preadv sys_preadv compat_sys_preadv
329 common pwritev sys_pwritev compat_sys_pwritev
330 common rt_tgsigqueueinfo sys_rt_tgsigqueueinfo compat_sys_rt_tgsigqueueinfo
-331 common perf_event_open sys_perf_event_open compat_sys_perf_event_open
+331 common perf_event_open sys_perf_event_open sys_perf_event_open
332 common fanotify_init sys_fanotify_init sys_fanotify_init
333 common fanotify_mark sys_fanotify_mark compat_sys_fanotify_mark
-334 common prlimit64 sys_prlimit64 compat_sys_prlimit64
-335 common name_to_handle_at sys_name_to_handle_at compat_sys_name_to_handle_at
+334 common prlimit64 sys_prlimit64 sys_prlimit64
+335 common name_to_handle_at sys_name_to_handle_at sys_name_to_handle_at
336 common open_by_handle_at sys_open_by_handle_at compat_sys_open_by_handle_at
337 common clock_adjtime sys_clock_adjtime compat_sys_clock_adjtime
338 common syncfs sys_syncfs sys_syncfs
@@ -350,44 +350,44 @@
340 common process_vm_readv sys_process_vm_readv compat_sys_process_vm_readv
341 common process_vm_writev sys_process_vm_writev compat_sys_process_vm_writev
342 common s390_runtime_instr sys_s390_runtime_instr sys_s390_runtime_instr
-343 common kcmp sys_kcmp compat_sys_kcmp
-344 common finit_module sys_finit_module compat_sys_finit_module
-345 common sched_setattr sys_sched_setattr compat_sys_sched_setattr
-346 common sched_getattr sys_sched_getattr compat_sys_sched_getattr
-347 common renameat2 sys_renameat2 compat_sys_renameat2
-348 common seccomp sys_seccomp compat_sys_seccomp
-349 common getrandom sys_getrandom compat_sys_getrandom
-350 common memfd_create sys_memfd_create compat_sys_memfd_create
-351 common bpf sys_bpf compat_sys_bpf
-352 common s390_pci_mmio_write sys_s390_pci_mmio_write compat_sys_s390_pci_mmio_write
-353 common s390_pci_mmio_read sys_s390_pci_mmio_read compat_sys_s390_pci_mmio_read
+343 common kcmp sys_kcmp sys_kcmp
+344 common finit_module sys_finit_module sys_finit_module
+345 common sched_setattr sys_sched_setattr sys_sched_setattr
+346 common sched_getattr sys_sched_getattr sys_sched_getattr
+347 common renameat2 sys_renameat2 sys_renameat2
+348 common seccomp sys_seccomp sys_seccomp
+349 common getrandom sys_getrandom sys_getrandom
+350 common memfd_create sys_memfd_create sys_memfd_create
+351 common bpf sys_bpf sys_bpf
+352 common s390_pci_mmio_write sys_s390_pci_mmio_write sys_s390_pci_mmio_write
+353 common s390_pci_mmio_read sys_s390_pci_mmio_read sys_s390_pci_mmio_read
354 common execveat sys_execveat compat_sys_execveat
355 common userfaultfd sys_userfaultfd sys_userfaultfd
356 common membarrier sys_membarrier sys_membarrier
357 common recvmmsg sys_recvmmsg compat_sys_recvmmsg
358 common sendmmsg sys_sendmmsg compat_sys_sendmmsg
359 common socket sys_socket sys_socket
-360 common socketpair sys_socketpair compat_sys_socketpair
-361 common bind sys_bind compat_sys_bind
-362 common connect sys_connect compat_sys_connect
+360 common socketpair sys_socketpair sys_socketpair
+361 common bind sys_bind sys_bind
+362 common connect sys_connect sys_connect
363 common listen sys_listen sys_listen
-364 common accept4 sys_accept4 compat_sys_accept4
+364 common accept4 sys_accept4 sys_accept4
365 common getsockopt sys_getsockopt compat_sys_getsockopt
366 common setsockopt sys_setsockopt compat_sys_setsockopt
-367 common getsockname sys_getsockname compat_sys_getsockname
-368 common getpeername sys_getpeername compat_sys_getpeername
-369 common sendto sys_sendto compat_sys_sendto
+367 common getsockname sys_getsockname sys_getsockname
+368 common getpeername sys_getpeername sys_getpeername
+369 common sendto sys_sendto sys_sendto
370 common sendmsg sys_sendmsg compat_sys_sendmsg
371 common recvfrom sys_recvfrom compat_sys_recvfrom
372 common recvmsg sys_recvmsg compat_sys_recvmsg
373 common shutdown sys_shutdown sys_shutdown
-374 common mlock2 sys_mlock2 compat_sys_mlock2
-375 common copy_file_range sys_copy_file_range compat_sys_copy_file_range
+374 common mlock2 sys_mlock2 sys_mlock2
+375 common copy_file_range sys_copy_file_range sys_copy_file_range
376 common preadv2 sys_preadv2 compat_sys_preadv2
377 common pwritev2 sys_pwritev2 compat_sys_pwritev2
-378 common s390_guarded_storage sys_s390_guarded_storage compat_sys_s390_guarded_storage
-379 common statx sys_statx compat_sys_statx
-380 common s390_sthyi sys_s390_sthyi compat_sys_s390_sthyi
-381 common kexec_file_load sys_kexec_file_load compat_sys_kexec_file_load
+378 common s390_guarded_storage sys_s390_guarded_storage sys_s390_guarded_storage
+379 common statx sys_statx sys_statx
+380 common s390_sthyi sys_s390_sthyi sys_s390_sthyi
+381 common kexec_file_load sys_kexec_file_load sys_kexec_file_load
382 common io_pgetevents sys_io_pgetevents compat_sys_io_pgetevents
-383 common rseq sys_rseq compat_sys_rseq
+383 common rseq sys_rseq sys_rseq
diff --git a/arch/s390/kernel/sysinfo.c b/arch/s390/kernel/sysinfo.c
index 12f80d1f0415..2ac3c9b56a13 100644
--- a/arch/s390/kernel/sysinfo.c
+++ b/arch/s390/kernel/sysinfo.c
@@ -545,8 +545,6 @@ static __init int stsi_init_debugfs(void)
int lvl, i;
stsi_root = debugfs_create_dir("stsi", arch_debugfs_dir);
- if (IS_ERR_OR_NULL(stsi_root))
- return 0;
lvl = stsi(NULL, 0, 0, 0);
if (lvl > 0)
stsi_0_0_0 = lvl;
diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c
index f24395a01918..98f850e00008 100644
--- a/arch/s390/kernel/vtime.c
+++ b/arch/s390/kernel/vtime.c
@@ -69,7 +69,7 @@ static void update_mt_scaling(void)
u64 delta, fac, mult, div;
int i;
- stcctm5(smp_cpu_mtid + 1, cycles_new);
+ stcctm(MT_DIAG, smp_cpu_mtid + 1, cycles_new);
cycles_old = this_cpu_ptr(mt_cycles);
fac = 1;
mult = div = 0;
@@ -432,6 +432,6 @@ void vtime_init(void)
__this_cpu_write(mt_scaling_jiffies, jiffies);
__this_cpu_write(mt_scaling_mult, 1);
__this_cpu_write(mt_scaling_div, 1);
- stcctm5(smp_cpu_mtid + 1, this_cpu_ptr(mt_cycles));
+ stcctm(MT_DIAG, smp_cpu_mtid + 1, this_cpu_ptr(mt_cycles));
}
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-13 23:59:21 +0000