Merge branch 'configs_for_controller_ram_optimizatin' into 'main'

examples/controller: add configs for controller RAM optimization

See merge request app-frameworks/esp-matter!1039

examples/controller/README.md

@@ -98,3 +98,14 @@ I cannot send commands to the light from the controller:
 -   If you are still facing issues, reproduce the issue on the default example for the device and then raise an [issue](https://github.com/espressif/esp-matter/issues). Make sure to share these:
     -   The complete device logs for both the devices taken over UART.
     -   The esp-matter and esp-idf branch you are using.
+
+### A1.3 RAM optimization
+-   The `sdkconfig.defaults.ram_optimization` file is provided for RAM optimization. These configurations enable SPIRAM (CONFIG_SPIRAM=y) and allow the BSS segment to be placed in SPIRAM (CONFIG_SPIRAM_ALLOW_BSS_SEG_EXTERNAL_MEMORY). With these configurations, [linker file](./main/linker.lf) can move move BSS segments of certain main controller libraries to SPIRAM. Build the example with the sdkconfig:
+```
+idf.py -D SDKCONFIG_DEFAULTS="sdkconfig.defaults;sdkconfig.defaults.ram_optimization" set-target esp32s3 build
+```
+-   The OTBR's sdkconfig file `sdkconfig.defaults.otbr` has RAM optimization configurations enabled by default.
+-   If you encounter a crash with error message: "PSRAM chip not found or not supported, or wrong PSRAM line mode", please check whether the module has SPIRAM and if the SPIRAM mode is configured correctly:
+    -   For 2MB SPIRAM, set `CONFIG_SPIRAM_MODE_QUAD=y`
+    -   For SPIRAM larger than 2MB, set `CONFIG_SPIRAM_MODE_OCT=y`
+-   Refer to [linker](https://docs.espressif.com/projects/esp-matter/en/latest/esp32/optimizations.html#configuration-options-to-optimize-ram-and-flash) for other options to optimize RAM and Flash.

examples/controller/main/CMakeLists.txt

@@ -1,6 +1,7 @@
 idf_component_register(SRC_DIRS          "."
                        INCLUDE_DIRS      "."
-                       PRIV_INCLUDE_DIRS  "." "${ESP_MATTER_PATH}/examples/common/utils")
+                       PRIV_INCLUDE_DIRS  "." "${ESP_MATTER_PATH}/examples/common/utils"
+                       LDFRAGMENTS "linker.lf")
 
 if(CONFIG_SPIFFS_ATTESTATION_TRUST_STORE)
     spiffs_create_partition_image(paa_cert ${CMAKE_SOURCE_DIR}/paa_cert FLASH_IN_PROJECT)

examples/controller/main/app_main.cpp

@@ -48,6 +48,12 @@ static void app_event_cb(const ChipDeviceEvent *event, intptr_t arg)
 #if CONFIG_OPENTHREAD_BORDER_ROUTER
             static bool sThreadBRInitialized = false;
             if (!sThreadBRInitialized) {
+                // TODO: Remove InitThreadStack() and StartThreadTask() if submodule contains the fix
+                // (https://github.com/project-chip/connectedhomeip/pull/37033)
+                if (chip::DeviceLayer::ThreadStackMgr().InitThreadStack() != CHIP_NO_ERROR ||
+                    chip::DeviceLayer::ThreadStackMgr().StartThreadTask() != CHIP_NO_ERROR) {
+                    break;
+                }
                 esp_openthread_set_backbone_netif(esp_netif_get_handle_from_ifkey("WIFI_STA_DEF"));
                 esp_openthread_lock_acquire(portMAX_DELAY);
                 esp_openthread_border_router_init();

examples/controller/main/linker.lf

@@ -0,0 +1,31 @@
+[mapping:CHIP]
+archive: libCHIP.a
+entries:
+  if SPIRAM_ALLOW_BSS_SEG_EXTERNAL_MEMORY = y:
+    * (extram_bss)
+  else:
+    * (default)
+
+[mapping:esp_matter]
+archive: libesp_matter.a
+entries:
+  if SPIRAM_ALLOW_BSS_SEG_EXTERNAL_MEMORY = y:
+    * (extram_bss)
+  else:
+    * (default)
+
+[mapping:main]
+archive: libmain.a
+entries:
+  if SPIRAM_ALLOW_BSS_SEG_EXTERNAL_MEMORY = y:
+    * (extram_bss)
+  else:
+    * (default)
+
+[mapping:openthread_bss]
+archive: libopenthread.a
+entries:
+  if SPIRAM_ALLOW_BSS_SEG_EXTERNAL_MEMORY = y && OPENTHREAD_ENABLED = y:
+    * (extram_bss)
+  else:
+    * (default)

examples/controller/sdkconfig.defaults.otbr

@@ -74,13 +74,17 @@ CONFIG_CHIP_PROJECT_CONFIG="main/matter_project_config.h"
 # Enable ble controller
 CONFIG_ENABLE_ESP32_BLE_CONTROLLER=y
 
-# SPIRAM
+# Use SPIRAM and external alloc
 CONFIG_SPIRAM=y
+CONFIG_SPIRAM_MODE_QUAD=y
 CONFIG_SPIRAM_SPEED_80M=y
 CONFIG_SPIRAM_MALLOC_ALWAYSINTERNAL=512
-CONFIG_SPIRAM_MALLOC_RESERVE_INTERNAL=8192
+CONFIG_SPIRAM_MALLOC_RESERVE_INTERNAL=16384
 CONFIG_SPIRAM_ALLOW_BSS_SEG_EXTERNAL_MEMORY=y
 CONFIG_SPIRAM_TRY_ALLOCATE_WIFI_LWIP=y
+CONFIG_BT_NIMBLE_MEM_ALLOC_MODE_EXTERNAL=y
+CONFIG_ESP_MATTER_MEM_ALLOC_MODE_EXTERNAL=y
+CONFIG_MBEDTLS_EXTERNAL_MEM_ALLOC=y
 
 # Enable HKDF for mbedtls
 CONFIG_MBEDTLS_HKDF_C=y

examples/controller/sdkconfig.defaults.ram_optimization

@@ -0,0 +1,11 @@
+# Use SPIRAM and external alloc
+CONFIG_SPIRAM=y
+CONFIG_SPIRAM_SPEED_80M=y
+CONFIG_SPIRAM_MODE_OCT=y
+CONFIG_SPIRAM_MALLOC_ALWAYSINTERNAL=512
+CONFIG_SPIRAM_MALLOC_RESERVE_INTERNAL=16384
+CONFIG_SPIRAM_ALLOW_BSS_SEG_EXTERNAL_MEMORY=y
+CONFIG_SPIRAM_TRY_ALLOCATE_WIFI_LWIP=y
+CONFIG_BT_NIMBLE_MEM_ALLOC_MODE_EXTERNAL=y
+CONFIG_ESP_MATTER_MEM_ALLOC_MODE_EXTERNAL=y
+CONFIG_MBEDTLS_EXTERNAL_MEM_ALLOC=y