Kernel updates since December 2009

conts/test_suite0/include/perf.h

@@ -0,0 +1,69 @@
+#ifndef __PERF_TESTS_H__
+#define __PERF_TESTS_H__
+
+/* Architecture specific perfmon cycle counting */
+#include <l4lib/types.h>
+#include <l4lib/macros.h>
+#include L4LIB_INC_SUBARCH(perfmon.h)
+
+struct perfmon_cycles {
+	u64 last;	/* Last op cycles */
+	u64 min;	/* Minimum cycles */
+	u64 max;	/* Max cycles */
+	u64 avg;	/* Average cycles */
+	u64 total;	/* Total cycles */
+	u64 ops;	/* Total ops */
+};
+
+/*
+ * This is for converting cycle count to timings on
+ * Cortex-A9 running at 400Mhz. 25 / 100000 is
+ * a rewriting of 2.5 nanosec / 1,000,000 in millisec
+ *
+ * 25 / 100 = 2.5nanosec * 10 / 1000 = microseconds
+ */
+
+#define CORTEXA9_400MHZ_USEC	25 / 10000
+#define CORTEXA9_400MHZ_MSEC	25 / 10000000
+#define USEC_MULTIPLIER		CORTEXA9_400MHZ_USEC
+#define MSEC_MULTIPLIER		CORTEXA9_400MHZ_MSEC
+
+#if !defined(CONFIG_DEBUG_PERFMON_USER)
+
+
+#define perfmon_record_cycles(ptr, str)
+
+#else /* End of CONFIG_DEBUG_PERFMON_USER */
+
+#define perfmon_record_cycles(pcyc, str)		\
+{							\
+	(pcyc)->ops++;					\
+	(pcyc)->last = perfmon_read_cyccnt() * 64;	\
+	(pcyc)->total += (pcyc)->last;			\
+	if ((pcyc)->min > (pcyc)->last)			\
+		(pcyc)->min = (pcyc)->last;		\
+	if ((pcyc)->max < (pcyc)->last)			\
+		(pcyc)->max = (pcyc)->last;		\
+}
+
+/* Same as above but restarts counter */
+#define perfmon_checkpoint_cycles(pcyc, str)		\
+{							\
+	(pcyc)->last = perfmon_read_cyccnt();		\
+	(pcyc)->total += pcyc->last;			\
+	perfmon_reset_start_cyccnt();			\
+}
+#endif /* End of !CONFIG_DEBUG_PERFMON_USER */
+
+void platform_measure_cpu_cycles(void);
+void perf_measure_getid_ticks(void);
+void perf_measure_cpu_cycles(void);
+void perf_measure_getid(void);
+void perf_measure_tctrl(void);
+int perf_measure_exregs(void);
+void perf_measure_ipc(void);
+void perf_measure_map(void);
+void perf_measure_unmap(void);
+void perf_measure_mutex(void);
+
+#endif /* __PERF_TESTS_H__ */