summaryrefslogtreecommitdiff
path: root/arch/s390/include/asm/cputime.h
diff options
context:
space:
mode:
authorMartin Schwidefsky <schwidefsky@de.ibm.com>2009-06-12 12:26:21 +0400
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2009-06-12 12:27:29 +0400
commit76d4e00a05d06c1d1552adea24fcf6182c9d8999 (patch)
tree932881ed89489a912fc4c3ab15b03290283d60e2 /arch/s390/include/asm/cputime.h
parent7aa79f948749da7de3de0c427e9c9ee0ff595243 (diff)
downloadlinux-76d4e00a05d06c1d1552adea24fcf6182c9d8999.tar.xz
[S390] merge cpu.h into cputime.h
All definition in cpu.h have to do with cputime accounting. Move them to cputime.h and remove the header file. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/cputime.h')
-rw-r--r--arch/s390/include/asm/cputime.h19
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/s390/include/asm/cputime.h b/arch/s390/include/asm/cputime.h
index 941384fbd39c..ec917d42ee6d 100644
--- a/arch/s390/include/asm/cputime.h
+++ b/arch/s390/include/asm/cputime.h
@@ -9,6 +9,9 @@
#ifndef _S390_CPUTIME_H
#define _S390_CPUTIME_H
+#include <linux/types.h>
+#include <linux/percpu.h>
+#include <linux/spinlock.h>
#include <asm/div64.h>
/* We want to use full resolution of the CPU timer: 2**-12 micro-seconds. */
@@ -174,8 +177,24 @@ cputime64_to_clock_t(cputime64_t cputime)
return __div(cputime, 4096000000ULL / USER_HZ);
}
+struct s390_idle_data {
+ spinlock_t lock;
+ unsigned long long idle_count;
+ unsigned long long idle_enter;
+ unsigned long long idle_time;
+};
+
+DECLARE_PER_CPU(struct s390_idle_data, s390_idle);
+
+void vtime_start_cpu(void);
cputime64_t s390_get_idle_time(int cpu);
#define arch_idle_time(cpu) s390_get_idle_time(cpu)
+static inline void s390_idle_check(void)
+{
+ if ((&__get_cpu_var(s390_idle))->idle_enter != 0ULL)
+ vtime_start_cpu();
+}
+
#endif /* _S390_CPUTIME_H */