selftests/powerpc: Add tests of PMU EBBs

[karo-tx-linux.git] / tools / testing / selftests / powerpc / pmu / ebb / trace.h

diff --git a/tools/testing/selftests/powerpc/pmu/ebb/trace.h b/tools/testing/selftests/powerpc/pmu/ebb/trace.h
new file mode 100644 (file)
index 0000000..926458e
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/ebb/trace.h
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2014, Michael Ellerman, IBM Corp.
+ * Licensed under GPLv2.
+ */
+
+#ifndef _SELFTESTS_POWERPC_PMU_EBB_TRACE_H
+#define _SELFTESTS_POWERPC_PMU_EBB_TRACE_H
+
+#include "utils.h"
+
+#define TRACE_TYPE_REG         1
+#define TRACE_TYPE_COUNTER     2
+#define TRACE_TYPE_STRING      3
+#define TRACE_TYPE_INDENT      4
+#define TRACE_TYPE_OUTDENT     5
+
+struct trace_entry
+{
+       u8 type;
+       u8 length;
+       u8 data[0];
+};
+
+struct trace_buffer
+{
+       u64  size;
+       bool overflow;
+       void *tail;
+       u8   data[0];
+};
+
+struct trace_buffer *trace_buffer_allocate(u64 size);
+int trace_log_reg(struct trace_buffer *tb, u64 reg, u64 value);
+int trace_log_counter(struct trace_buffer *tb, u64 value);
+int trace_log_string(struct trace_buffer *tb, char *str);
+int trace_log_indent(struct trace_buffer *tb);
+int trace_log_outdent(struct trace_buffer *tb);
+void trace_buffer_print(struct trace_buffer *tb);
+void trace_print_location(struct trace_buffer *tb);
+
+#endif /* _SELFTESTS_POWERPC_PMU_EBB_TRACE_H */