QCLINUX: memory-dump: add QCOM memory dump driver

The memory dump driver allows various client subsystems to register
respective dump regions. At the time of deadlocks or cpu hangs these
dump regions are captured to give a snapshot of the system at the
time of the crash.

Signed-off-by: Jie Gan <jie.gan@oss.qualcomm.com>

Author: jiegan0107

arch/arm64/configs/qcom_debug.config

@@ -1,2 +1,3 @@
 CONFIG_QCOM_DCC=m
 CONFIG_QCOM_DCC_DEV=m
+CONFIG_QCOM_MEMORY_DUMP_V2=m

drivers/firmware/qcom/Kconfig

@@ -74,4 +74,13 @@ config QCOM_QSEECOM_UEFISECAPP
 	  Select Y here to provide access to EFI variables on the aforementioned
 	  platforms.
 
+config QCOM_MEMORY_DUMP_V2
+	tristate "QCOM Memory Dump V2 Support"
+	depends on QCOM_TZMEM
+	help
+	  This enables memory dump feature. It allows various client
+	  subsystems to register respective dump regions. At the time
+	  of deadlocks or cpu hangs these dump regions are captured to
+	  give a snapshot of the system at the time of the crash.
+
 endmenu

drivers/firmware/qcom/Makefile

@@ -8,3 +8,4 @@ qcom-scm-objs += qcom_scm.o qcom_scm-smc.o qcom_scm-legacy.o
 obj-$(CONFIG_QCOM_TZMEM)	+= qcom_tzmem.o
 obj-$(CONFIG_QCOM_QSEECOM)	+= qcom_qseecom.o
 obj-$(CONFIG_QCOM_QSEECOM_UEFISECAPP) += qcom_qseecom_uefisecapp.o
+obj-$(CONFIG_QCOM_MEMORY_DUMP_V2) += memory_dump_v2.o