Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 33 insertions, 0 deletions

diff --git a/arch/alpha/include/asm/timex.h b/arch/alpha/include/asm/timex.h
new file mode 100644
index 0000000000..f89798da8a
--- /dev/null
+++ b/arch/alpha/include/asm/timex.h
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * linux/include/asm-alpha/timex.h
+ *
+ * ALPHA architecture timex specifications
+ */
+#ifndef _ASMALPHA_TIMEX_H
+#define _ASMALPHA_TIMEX_H
+
+/* With only one or two oddballs, we use the RTC as the ticker, selecting
+   the 32.768kHz reference clock, which nicely divides down to our HZ.  */
+#define CLOCK_TICK_RATE	32768
+
+/*
+ * Standard way to access the cycle counter.
+ * Currently only used on SMP for scheduling.
+ *
+ * Only the low 32 bits are available as a continuously counting entity. 
+ * But this only means we'll force a reschedule every 8 seconds or so,
+ * which isn't an evil thing.
+ */
+
+typedef unsigned int cycles_t;
+
+static inline cycles_t get_cycles (void)
+{
+	cycles_t ret;
+	__asm__ __volatile__ ("rpcc %0" : "=r"(ret));
+	return ret;
+}
+#define get_cycles get_cycles
+
+#endif