security: Add tracing for SecureOS measurements

Add new tracepoint events for SecureOS-related tracing.
The timestamp traces measure the number of cycles taken
to switch between normal world and secure world using the
CP15 cycle counter.

Bug 1042455

Change-Id: Ia7f0718a0fcc399875a175670b80dfe33f79b95e
Signed-off-by: Charles Tan <ctan@nvidia.com>
Reviewed-on: http://git-master/r/159367
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Antti Miettinen <amiettinen@nvidia.com>
Tested-by: Antti Miettinen <amiettinen@nvidia.com>
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>

1 files changed, 152 insertions, 0 deletions

diff --git a/include/trace/events/nvsecurity.h b/include/trace/events/nvsecurity.h
new file mode 100644
index 000000000000..25e90a9f9387
--- /dev/null
+++ b/include/trace/events/nvsecurity.h
@@ -0,0 +1,152 @@
+/*
+ * include/trace/events/nvsecurity.h
+ *
+ * Security event logging to ftrace.
+ *
+ * Copyright (c) 2012, NVIDIA Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM nvsecurity
+
+#if !defined(_TRACE_NVSECURITY_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_NVSECURITY_H
+
+#include <linux/ktime.h>
+#include <linux/tracepoint.h>
+
+extern u32 notrace tegra_read_usec_raw(void);
+
+DECLARE_EVENT_CLASS(usec_profiling,
+
+	TP_PROTO(unsigned long state),
+
+	TP_ARGS(state),
+
+	TP_STRUCT__entry(
+		__field(u32, counter)
+		__field(u32, state)
+	),
+
+	TP_fast_assign(
+		__entry->counter = tegra_read_usec_raw();
+		__entry->state = state;
+	),
+
+	TP_printk("counter=%lu, state=%lu",
+		(unsigned long)__entry->counter,
+		(unsigned long)__entry->state
+	)
+);
+
+DEFINE_EVENT(usec_profiling, smc_sleep_cpu,
+
+	TP_PROTO(unsigned long state),
+
+	TP_ARGS(state)
+);
+
+DEFINE_EVENT(usec_profiling, smc_sleep_core,
+
+	TP_PROTO(unsigned long state),
+
+	TP_ARGS(state)
+);
+
+DEFINE_EVENT(usec_profiling, smc_init_cache,
+
+	TP_PROTO(unsigned long state),
+
+	TP_ARGS(state)
+);
+
+DEFINE_EVENT(usec_profiling, smc_wake,
+
+	TP_PROTO(unsigned long state),
+
+	TP_ARGS(state)
+);
+
+DEFINE_EVENT(usec_profiling, secureos_init,
+
+	TP_PROTO(unsigned long state),
+
+	TP_ARGS(state)
+);
+
+extern u32 notrace tegra_read_cycle(void);
+
+DECLARE_EVENT_CLASS(cycle_profiling,
+
+	TP_PROTO(unsigned long state),
+
+	TP_ARGS(state),
+
+	TP_STRUCT__entry(
+		__field(u32, counter)
+		__field(u32, state)
+	),
+
+	TP_fast_assign(
+		__entry->counter = tegra_read_cycle();
+		__entry->state = state;
+	),
+
+	TP_printk("counter=%lu, state=%lu",
+		(unsigned long)__entry->counter,
+		(unsigned long)__entry->state
+	)
+);
+
+DEFINE_EVENT(cycle_profiling, invoke_client_command,
+
+	TP_PROTO(unsigned long state),
+
+	TP_ARGS(state)
+);
+
+DEFINE_EVENT(cycle_profiling, smc_generic_call,
+
+	TP_PROTO(unsigned long state),
+
+	TP_ARGS(state)
+);
+
+/* This file can get included multiple times, TRACE_HEADER_MULTI_READ at top */
+#ifndef _NVSEC_EVENT_AVOID_DOUBLE_DEFINING
+#define _NVSEC_EVENT_AVOID_DOUBLE_DEFINING
+
+enum {
+	NVSEC_SMC_START,
+	NVSEC_SMC_DONE
+};
+
+enum {
+	NVSEC_INVOKE_CMD_START,
+	NVSEC_INVOKE_CMD_DONE
+};
+
+enum {
+	NVSEC_SUSPEND_EXIT_START,
+	NVSEC_SUSPEND_EXIT_DONE
+};
+
+#endif
+#endif /* _TRACE_NVSECURITY_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>