openamp/Kconfig: add CONFIG_OPENAMP_ENABLE_VIRTIO_ONLY to enable virtio only

OPENAMP_VIRTIO_DEVICE_ONLY and OPENAMP_VIRTIO_DRIVER_ONLY can be used to
comment some unused code in OpenAMP library to save code size.

Signed-off-by: Yongrong Wang <wangyongrong@xiaomi.com>
Signed-off-by: Bowen Wang <wangbowen6@xiaomi.com>

openamp/Kconfig

@@ -22,4 +22,12 @@ config OPENAMP_DEBUG
 	bool "Enable OpenAMP Debug"
 	default n
 
+config OPENAMP_VIRTIO_DEVICE_ONLY
+	bool "Enable VIRTIO_DEVICE_ONLY"
+	default n
+
+config OPENAMP_VIRTIO_DRIVER_ONLY
+	bool "Enable VIRTIO_DRIVER_ONLY"
+	default n
+
 endif # OPENAMP

openamp/open-amp.cmake

@@ -99,6 +99,14 @@ endif()
 
 add_compile_definitions(elf_load=remoteproc_elf_load)
 
+if(CONFIG_OPENAMP_VIRTIO_DEVICE_ONLY)
+  add_compile_definitions(VIRTIO_DEVICE_ONLY)
+endif()
+
+if(CONFIG_OPENAMP_VIRTIO_DRIVER_ONLY)
+  add_compile_definitions(VIRTIO_DRIVER_ONLY)
+endif()
+
 set(WITH_LIBMETAL_FIND OFF)
 
 if(NOT CMAKE_SYSTEM_PROCESSOR)

openamp/open-amp.defs

@@ -32,6 +32,14 @@ endif
 
 CFLAGS += -Delf_load=remoteproc_elf_load
 
+ifeq ($(CONFIG_OPENAMP_VIRTIO_DEVICE_ONLY),y)
+  CFLAGS += -DVIRTIO_DEVICE_ONLY
+endif
+
+ifeq ($(CONFIG_OPENAMP_VIRTIO_DRIVER_ONLY),y)
+  CFLAGS += -DVIRTIO_DRIVER_ONLY
+endif
+
 CSRCS += open-amp/lib/remoteproc/elf_loader.c
 CSRCS += open-amp/lib/remoteproc/remoteproc.c
 CSRCS += open-amp/lib/remoteproc/remoteproc_virtio.c