[IA64] Convert to generic timekeeping/clocksource

This is a merge of Peter Keilty's initial patch (which was
revived by Bob Picco) for this with Hidetoshi Seto's fixes
and scaling improvements.

Acked-by: Bob Picco <bob.picco@hp.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

1 files changed, 23 insertions, 0 deletions

diff --git a/arch/ia64/kernel/fsyscall_gtod_data.h b/arch/ia64/kernel/fsyscall_gtod_data.h
new file mode 100644
index 00000000000..490dab55fba
--- /dev/null
+++ b/arch/ia64/kernel/fsyscall_gtod_data.h
@@ -0,0 +1,23 @@
+/*
+ * (c) Copyright 2007 Hewlett-Packard Development Company, L.P.
+ *        Contributed by Peter Keilty <peter.keilty@hp.com>
+ *
+ * fsyscall gettimeofday data
+ */
+
+struct fsyscall_gtod_data_t {
+        seqlock_t       lock;
+        struct timespec wall_time;
+        struct timespec monotonic_time;
+        cycle_t         clk_mask;
+        u32             clk_mult;
+        u32             clk_shift;
+        void            *clk_fsys_mmio;
+        cycle_t         clk_cycle_last;
+} __attribute__ ((aligned (L1_CACHE_BYTES)));
+
+struct itc_jitter_data_t {
+        int             itc_jitter;
+        cycle_t         itc_lastcycle;
+} __attribute__ ((aligned (L1_CACHE_BYTES)));
+