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-rw-r--r--arch/s390/Kconfig8
-rw-r--r--arch/s390/include/asm/atomic.h7
-rw-r--r--arch/s390/include/asm/perf_counter.h2
-rw-r--r--arch/s390/include/asm/thread_info.h2
-rw-r--r--arch/s390/kernel/dis.c1
-rw-r--r--arch/s390/kernel/ipl.c15
-rw-r--r--arch/s390/kernel/ptrace.c1
-rw-r--r--arch/s390/lib/Makefile2
-rw-r--r--arch/s390/lib/delay.c2
-rw-r--r--arch/s390/lib/ucmpdi2.c26
-rw-r--r--arch/s390/mm/fault.c1
11 files changed, 55 insertions, 12 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index e577839f307..2ae5d72f47e 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -95,6 +95,11 @@ config S390
select HAVE_ARCH_TRACEHOOK
select INIT_ALL_POSSIBLE
select HAVE_PERF_COUNTERS
+ select GENERIC_ATOMIC64 if !64BIT
+
+config SCHED_OMIT_FRAME_POINTER
+ bool
+ default y
source "init/Kconfig"
@@ -116,6 +121,9 @@ config 32BIT
bool
default y if !64BIT
+config KTIME_SCALAR
+ def_bool 32BIT
+
config SMP
bool "Symmetric multi-processing support"
---help---
diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h
index fca9dffcc66..c7d0abfb0f0 100644
--- a/arch/s390/include/asm/atomic.h
+++ b/arch/s390/include/asm/atomic.h
@@ -268,7 +268,12 @@ static __inline__ int atomic64_add_unless(atomic64_t *v,
#define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
#undef __CSG_LOOP
-#endif
+
+#else /* __s390x__ */
+
+#include <asm-generic/atomic64.h>
+
+#endif /* __s390x__ */
#define smp_mb__before_atomic_dec() smp_mb()
#define smp_mb__after_atomic_dec() smp_mb()
diff --git a/arch/s390/include/asm/perf_counter.h b/arch/s390/include/asm/perf_counter.h
index a7205a3828c..7015188c2cc 100644
--- a/arch/s390/include/asm/perf_counter.h
+++ b/arch/s390/include/asm/perf_counter.h
@@ -6,3 +6,5 @@
static inline void set_perf_counter_pending(void) {}
static inline void clear_perf_counter_pending(void) {}
+
+#define PERF_COUNTER_INDEX_OFFSET 0
diff --git a/arch/s390/include/asm/thread_info.h b/arch/s390/include/asm/thread_info.h
index 925bcc64903..ba1cab9fc1f 100644
--- a/arch/s390/include/asm/thread_info.h
+++ b/arch/s390/include/asm/thread_info.h
@@ -61,7 +61,7 @@ struct thread_info {
.exec_domain = &default_exec_domain, \
.flags = 0, \
.cpu = 0, \
- .preempt_count = 1, \
+ .preempt_count = INIT_PREEMPT_COUNT, \
.restart_block = { \
.fn = do_no_restart_syscall, \
}, \
diff --git a/arch/s390/kernel/dis.c b/arch/s390/kernel/dis.c
index d2f270c995d..db943a7ec51 100644
--- a/arch/s390/kernel/dis.c
+++ b/arch/s390/kernel/dis.c
@@ -15,7 +15,6 @@
#include <linux/timer.h>
#include <linux/mm.h>
#include <linux/smp.h>
-#include <linux/smp_lock.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index b8bf4b14006..371a2d88f4a 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -70,6 +70,7 @@ struct shutdown_action {
char *name;
void (*fn) (struct shutdown_trigger *trigger);
int (*init) (void);
+ int init_rc;
};
static char *ipl_type_str(enum ipl_type type)
@@ -1486,11 +1487,13 @@ static int set_trigger(const char *buf, struct shutdown_trigger *trigger,
int i;
for (i = 0; i < SHUTDOWN_ACTIONS_COUNT; i++) {
- if (!shutdown_actions_list[i])
- continue;
if (sysfs_streq(buf, shutdown_actions_list[i]->name)) {
- trigger->action = shutdown_actions_list[i];
- return len;
+ if (shutdown_actions_list[i]->init_rc) {
+ return shutdown_actions_list[i]->init_rc;
+ } else {
+ trigger->action = shutdown_actions_list[i];
+ return len;
+ }
}
}
return -EINVAL;
@@ -1640,8 +1643,8 @@ static void __init shutdown_actions_init(void)
for (i = 0; i < SHUTDOWN_ACTIONS_COUNT; i++) {
if (!shutdown_actions_list[i]->init)
continue;
- if (shutdown_actions_list[i]->init())
- shutdown_actions_list[i] = NULL;
+ shutdown_actions_list[i]->init_rc =
+ shutdown_actions_list[i]->init();
}
}
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index 490b39934d6..43acd73105b 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -26,7 +26,6 @@
#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/smp.h>
-#include <linux/smp_lock.h>
#include <linux/errno.h>
#include <linux/ptrace.h>
#include <linux/user.h>
diff --git a/arch/s390/lib/Makefile b/arch/s390/lib/Makefile
index ab6735df2d2..97975ec7a27 100644
--- a/arch/s390/lib/Makefile
+++ b/arch/s390/lib/Makefile
@@ -3,6 +3,6 @@
#
lib-y += delay.o string.o uaccess_std.o uaccess_pt.o
-obj-$(CONFIG_32BIT) += div64.o qrnnd.o
+obj-$(CONFIG_32BIT) += div64.o qrnnd.o ucmpdi2.o
lib-$(CONFIG_64BIT) += uaccess_mvcos.o
lib-$(CONFIG_SMP) += spinlock.o
diff --git a/arch/s390/lib/delay.c b/arch/s390/lib/delay.c
index 3f5f680726e..97c1eca83cc 100644
--- a/arch/s390/lib/delay.c
+++ b/arch/s390/lib/delay.c
@@ -36,9 +36,11 @@ static void __udelay_disabled(unsigned long usecs)
cr0 = (cr0_saved & 0xffff00e0) | 0x00000800;
__ctl_load(cr0 , 0, 0);
mask = psw_kernel_bits | PSW_MASK_WAIT | PSW_MASK_EXT;
+ lockdep_off();
trace_hardirqs_on();
__load_psw_mask(mask);
local_irq_disable();
+ lockdep_on();
__ctl_load(cr0_saved, 0, 0);
local_tick_enable(clock_saved);
set_clock_comparator(S390_lowcore.clock_comparator);
diff --git a/arch/s390/lib/ucmpdi2.c b/arch/s390/lib/ucmpdi2.c
new file mode 100644
index 00000000000..3e05ff53258
--- /dev/null
+++ b/arch/s390/lib/ucmpdi2.c
@@ -0,0 +1,26 @@
+#include <linux/module.h>
+
+union ull_union {
+ unsigned long long ull;
+ struct {
+ unsigned int high;
+ unsigned int low;
+ } ui;
+};
+
+int __ucmpdi2(unsigned long long a, unsigned long long b)
+{
+ union ull_union au = {.ull = a};
+ union ull_union bu = {.ull = b};
+
+ if (au.ui.high < bu.ui.high)
+ return 0;
+ else if (au.ui.high > bu.ui.high)
+ return 2;
+ if (au.ui.low < bu.ui.low)
+ return 0;
+ else if (au.ui.low > bu.ui.low)
+ return 2;
+ return 1;
+}
+EXPORT_SYMBOL(__ucmpdi2);
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index 74eb26bf197..e5e119fe03b 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -22,7 +22,6 @@
#include <linux/compat.h>
#include <linux/smp.h>
#include <linux/kdebug.h>
-#include <linux/smp_lock.h>
#include <linux/init.h>
#include <linux/console.h>
#include <linux/module.h>
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-26 16:49:13 +0000