--- zzzz-none-000/linux-4.4.60/kernel/trace/Kconfig	2017-04-08 07:53:53.000000000 +0000
+++ dragonfly-4020-701/linux-4.4.60/kernel/trace/Kconfig	2018-11-08 13:36:17.000000000 +0000
@@ -86,6 +86,31 @@
 	 Allow the use of ring_buffer_swap_cpu.
 	 Adds a very slight overhead to tracing when enabled.
 
+config IPC_LOGGING
+	bool "Debug Logging for IPC Drivers"
+	select GENERIC_TRACER
+	help
+	 This option allows the debug logging for IPC Drivers.
+
+	 If in doubt, say no.
+
+config QCOM_RTB
+	bool "Register tracing"
+	help
+	  Add support for logging different events to a small uncached
+	  region. This is designed to aid in debugging reset cases where the
+	  caches may not be flushed before the target resets.
+
+config QCOM_RTB_SEPARATE_CPUS
+	bool "Separate entries for each cpu"
+	depends on QCOM_RTB
+	depends on SMP
+	help
+	  Under some circumstances, it may be beneficial to give dedicated space
+	  for each cpu to log accesses. Selecting this option will log each cpu
+	  separately. This will guarantee that the last acesses for each cpu
+	  will be logged but there will be fewer entries per cpu
+
 # All tracer options should select GENERIC_TRACER. For those options that are
 # enabled by all tracers (context switch and event tracer) they select TRACING.
 # This allows those options to appear when no other tracer is selected. But the
@@ -642,6 +667,19 @@
 	help
 	  Enable tracing events for gpio subsystem
 
+config SRD_TRACE
+	bool "Record trace events in coherent memory"
+	depends on FTRACE
+	default n
+	help
+	  Normal tracing records the information in cacheable memory. In some
+	  scenarios where the system reboots unexpectedly, the cache is not
+	  flushed and the recorded information is lost. While doing the core
+	  dump analysis, the developer doesn't have the details about the
+	  functions that executed during the final moments before the reboot.
+	  With this option the information is recorded to coherent memory and
+	  the information is not lost even during an unexpected reboot.
+
 endif # FTRACE
 
 endif # TRACING_SUPPORT