ci(esp_psram): Add a test to validate non-bootup PSRAM initialisation

- Also adds a test for the newly added PSRAM helper APIs:
esp_psram_get_heap_pool_size() and esp_psram_get_effective_mapped_size()

components/esp_psram/test_apps/.build-test-rules.yml

@@ -1,8 +1,11 @@
 # Documentation: .gitlab/ci/README.md#manifest-file-to-control-the-buildtest-apps
 
 components/esp_psram/test_apps/psram:
+  enable:
+    - if: CONFIG_NAME == "psram_no_boot_init" and SOC_SPIRAM_SUPPORTED == 1
   disable:
     - if: SOC_SPIRAM_SUPPORTED != 1
+    - if: CONFIG_NAME == "xip_psram_no_boot_init" and SOC_SPIRAM_XIP_SUPPORTED != 1
   depends_components:
     - esp_psram
     - esp_mm

components/esp_psram/test_apps/psram/main/CMakeLists.txt

@@ -1,10 +1,15 @@
 idf_build_get_property(target IDF_TARGET)
 
-set(srcs "test_app_main.c"
-         "test_psram.c")
+set(srcs "test_app_main.c")
 
-if(${target} STREQUAL "esp32")
-    list(APPEND srcs "test_himem.c" "test_4mpsram.c")
+if(CONFIG_SPIRAM_BOOT_INIT)
+    list(APPEND srcs "test_psram.c")
+
+    if(${target} STREQUAL "esp32")
+        list(APPEND srcs "test_himem.c" "test_4mpsram.c")
+    endif()
+else()
+    list(APPEND srcs "test_psram_no_boot_init.c")
 endif()
 
 # In order for the cases defined by `TEST_CASE` to be linked into the final elf,

components/esp_psram/test_apps/psram/main/test_psram_no_boot_init.c

@@ -0,0 +1,25 @@
+/*
+ * SPDX-FileCopyrightText: 2025 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Unlicense OR CC0-1.0
+ */
+#include "sdkconfig.h"
+#include "unity.h"
+#include "esp_psram.h"
+#include "esp_private/esp_psram_extram.h"
+
+TEST_CASE("test psram no boot init", "[psram_no_boot_init]")
+{
+#if CONFIG_SPIRAM_PRE_CONFIGURE_MEMORY_PROTECTION
+    // As PSRAM is just enabled and not initialised during the boot up, the API
+    // esp_psram_get_heap_size_to_protect() manually calculates the size of the PSRAM heap
+    size_t manually_calculated_psram_heap = esp_psram_get_heap_size_to_protect();
+#endif /* CONFIG_SPIRAM_PRE_CONFIGURE_MEMORY_PROTECTION */
+
+    TEST_ESP_OK(esp_psram_init());
+
+#if CONFIG_SPIRAM_PRE_CONFIGURE_MEMORY_PROTECTION
+    size_t final_psram_heap = esp_psram_get_heap_size_to_protect();
+    TEST_ASSERT_EQUAL(final_psram_heap, manually_calculated_psram_heap);
+#endif /* CONFIG_SPIRAM_PRE_CONFIGURE_MEMORY_PROTECTION */
+}

components/esp_psram/test_apps/psram/pytest_psram.py

@@ -112,3 +112,29 @@ def test_psram_esp32c5(dut: Dut) -> None:
 @idf_parametrize('target', ['esp32c61'], indirect=['target'])
 def test_psram_esp32c61(dut: Dut) -> None:
     dut.run_all_single_board_cases()
+
+
+@pytest.mark.generic
+@pytest.mark.parametrize(
+    'config',
+    [
+        'xip_psram_no_boot_init',
+    ],
+    indirect=True,
+)
+@idf_parametrize('target', ['esp32s2', 'esp32s3', 'esp32c5', 'esp32c61'], indirect=['target'])
+def test_xip_psram_no_boot_init(dut: Dut) -> None:
+    dut.run_all_single_board_cases()
+
+
+@pytest.mark.generic
+@pytest.mark.parametrize(
+    'config',
+    [
+        'psram_no_boot_init',
+    ],
+    indirect=True,
+)
+@idf_parametrize('target', ['supported_targets'], indirect=['target'])
+def test_psram_no_boot_init(dut: Dut) -> None:
+    dut.run_all_single_board_cases()

components/esp_psram/test_apps/psram/sdkconfig.ci.psram_no_boot_init

@@ -0,0 +1,4 @@
+CONFIG_SPIRAM=y
+CONFIG_SPIRAM_BOOT_HW_INIT=y
+CONFIG_SPIRAM_BOOT_INIT=n
+CONFIG_SPIRAM_PRE_CONFIGURE_MEMORY_PROTECTION=y

components/esp_psram/test_apps/psram/sdkconfig.ci.xip_psram_no_boot_init

@@ -0,0 +1,7 @@
+CONFIG_SPIRAM=y
+CONFIG_SPIRAM_XIP_FROM_PSRAM=y
+CONFIG_SPIRAM_ALLOW_BSS_SEG_EXTERNAL_MEMORY=y
+CONFIG_SPIRAM_ALLOW_NOINIT_SEG_EXTERNAL_MEMORY=y
+CONFIG_SPIRAM_BOOT_HW_INIT=y
+CONFIG_SPIRAM_BOOT_INIT=n
+CONFIG_SPIRAM_PRE_CONFIGURE_MEMORY_PROTECTION=y