summaryrefslogtreecommitdiff
path: root/include/asm-s390/system.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-s390/system.h')
-rw-r--r--include/asm-s390/system.h18
1 files changed, 18 insertions, 0 deletions
diff --git a/include/asm-s390/system.h b/include/asm-s390/system.h
index 92098df4d6e3..c819ae25a842 100644
--- a/include/asm-s390/system.h
+++ b/include/asm-s390/system.h
@@ -16,6 +16,7 @@
#include <asm/ptrace.h>
#include <asm/setup.h>
#include <asm/processor.h>
+#include <asm/lowcore.h>
#ifdef __KERNEL__
@@ -422,6 +423,23 @@ extern void smp_ctl_clear_bit(int cr, int bit);
#endif /* CONFIG_SMP */
+static inline unsigned int stfl(void)
+{
+ asm volatile(
+ " .insn s,0xb2b10000,0(0)\n" /* stfl */
+ "0:\n"
+ EX_TABLE(0b,0b));
+ return S390_lowcore.stfl_fac_list;
+}
+
+static inline unsigned short stap(void)
+{
+ unsigned short cpu_address;
+
+ asm volatile("stap %0" : "=m" (cpu_address));
+ return cpu_address;
+}
+
extern void (*_machine_restart)(char *command);
extern void (*_machine_halt)(void);
extern void (*_machine_power_off)(void);