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-rw-r--r--arch/c6x/include/asm/timex.h33
1 files changed, 33 insertions, 0 deletions
diff --git a/arch/c6x/include/asm/timex.h b/arch/c6x/include/asm/timex.h
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+++ b/arch/c6x/include/asm/timex.h
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+/*
+ * Port on Texas Instruments TMS320C6x architecture
+ *
+ * Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated
+ * Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+ *
+ * Modified for 2.6.34: Mark Salter <msalter@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef _ASM_C6X_TIMEX_H
+#define _ASM_C6X_TIMEX_H
+
+#define CLOCK_TICK_RATE ((1000 * 1000000UL) / 6)
+
+/* 64-bit timestamp */
+typedef unsigned long long cycles_t;
+
+static inline cycles_t get_cycles(void)
+{
+ unsigned l, h;
+
+ asm volatile (" dint\n"
+ " mvc .s2 TSCL,%0\n"
+ " mvc .s2 TSCH,%1\n"
+ " rint\n"
+ : "=b"(l), "=b"(h));
+ return ((cycles_t)h << 32) | l;
+}
+
+#endif /* _ASM_C6X_TIMEX_H */