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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2007-02-20 19:13:30 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2007-02-20 19:13:30 +0000
commit5a84d159061d914c8dd4aa372ac6e9529c2be453 (patch)
tree9b08af78085334af44414adafe0096276f8fe0ff /include/asm-s390/timex.h
parente80a0e6e7ccdf64575d4384cb4172860422f5b81 (diff)
parent7d477a04a619e90ee08724e8f2d8803c6bdfcef8 (diff)
Merge ARM fixes
Diffstat (limited to 'include/asm-s390/timex.h')
-rw-r--r--include/asm-s390/timex.h50
1 files changed, 50 insertions, 0 deletions
diff --git a/include/asm-s390/timex.h b/include/asm-s390/timex.h
index 4df4a41029a..98229db2431 100644
--- a/include/asm-s390/timex.h
+++ b/include/asm-s390/timex.h
@@ -11,6 +11,41 @@
#ifndef _ASM_S390_TIMEX_H
#define _ASM_S390_TIMEX_H
+/* Inline functions for clock register access. */
+static inline int set_clock(__u64 time)
+{
+ int cc;
+
+ asm volatile(
+ " sck 0(%2)\n"
+ " ipm %0\n"
+ " srl %0,28\n"
+ : "=d" (cc) : "m" (time), "a" (&time) : "cc");
+ return cc;
+}
+
+static inline int store_clock(__u64 *time)
+{
+ int cc;
+
+ asm volatile(
+ " stck 0(%2)\n"
+ " ipm %0\n"
+ " srl %0,28\n"
+ : "=d" (cc), "=m" (*time) : "a" (time) : "cc");
+ return cc;
+}
+
+static inline void set_clock_comparator(__u64 time)
+{
+ asm volatile("sckc 0(%1)" : : "m" (time), "a" (&time));
+}
+
+static inline void store_clock_comparator(__u64 *time)
+{
+ asm volatile("stckc 0(%1)" : "=m" (*time) : "a" (time));
+}
+
#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
typedef unsigned long long cycles_t;
@@ -27,9 +62,24 @@ static inline unsigned long long get_clock (void)
return clk;
}
+static inline void get_clock_extended(void *dest)
+{
+ typedef struct { unsigned long long clk[2]; } __clock_t;
+
+#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
+ asm volatile("stcke %0" : "=Q" (*((__clock_t *)dest)) : : "cc");
+#else /* __GNUC__ */
+ asm volatile("stcke 0(%1)" : "=m" (*((__clock_t *)dest))
+ : "a" ((__clock_t *)dest) : "cc");
+#endif /* __GNUC__ */
+}
+
static inline cycles_t get_cycles(void)
{
return (cycles_t) get_clock() >> 2;
}
+int get_sync_clock(unsigned long long *clock);
+void init_cpu_timer(void);
+
#endif