Merge branch 'fix/fix_esp32_core1_access_rtc_fast_in_sleep_code' into 'master'

fix(esp_hw_support): fix esp32 APP_CPU accessing RTCFAST memory in sleep code

Closes IDFGH-15614

See merge request espressif/esp-idf!40452

Author: esp-wzh

components/esp_hw_support/sleep_modes.c

@@ -326,8 +326,9 @@ static bool s_light_sleep_wakeup = false;
 static portMUX_TYPE __attribute__((unused)) spinlock_rtc_deep_sleep = portMUX_INITIALIZER_UNLOCKED;
 
 static const char *TAG = "sleep";
-static RTC_FAST_ATTR int32_t s_sleep_sub_mode_ref_cnt[ESP_SLEEP_MODE_MAX] = { 0 };
-//in this mode, 2uA is saved, but RTC memory can't use at high temperature, and RTCIO can't be used as INPUT.
+
+/* APP core of esp32 can't access to RTC FAST MEMORY, do not define it with RTC_IRAM_ATTR */
+RTC_SLOW_ATTR static int32_t s_sleep_sub_mode_ref_cnt[ESP_SLEEP_MODE_MAX] = { 0 };
 
 void esp_sleep_overhead_out_time_refresh(void)
 {
@@ -424,12 +425,12 @@ esp_deep_sleep_wake_stub_fn_t esp_get_deep_sleep_wake_stub(void)
 }
 
 #if CONFIG_IDF_TARGET_ESP32
-/* APP core of esp32 can't access to RTC FAST MEMORY, do not define it with RTC_IRAM_ATTR */
-void
+/* APP core of esp32 can't access to RTC FAST MEMORY, link to RTC SLOW MEMORY instead*/
+RTC_SLOW_ATTR
 #else
-void RTC_IRAM_ATTR
+RTC_IRAM_ATTR
 #endif
-esp_set_deep_sleep_wake_stub(esp_deep_sleep_wake_stub_fn_t new_stub)
+void esp_set_deep_sleep_wake_stub(esp_deep_sleep_wake_stub_fn_t new_stub)
 {
 #if SOC_PM_SUPPORT_DEEPSLEEP_CHECK_STUB_ONLY
     wake_stub_fn_handler = new_stub;
@@ -438,7 +439,14 @@ esp_set_deep_sleep_wake_stub(esp_deep_sleep_wake_stub_fn_t new_stub)
 #endif
 }
 
-void RTC_IRAM_ATTR esp_default_wake_deep_sleep(void)
+
+#if CONFIG_IDF_TARGET_ESP32
+/* APP core of esp32 can't access to RTC FAST MEMORY, link to RTC SLOW MEMORY instead*/
+RTC_SLOW_ATTR
+#else
+RTC_IRAM_ATTR
+#endif
+void esp_default_wake_deep_sleep(void)
 {
     /* Clear MMU for CPU 0 */
 #if CONFIG_IDF_TARGET_ESP32
@@ -2839,11 +2847,11 @@ static SLEEP_FN_ATTR uint32_t get_sleep_clock_icg_flags(void)
 
 #if CONFIG_IDF_TARGET_ESP32
 /* APP core of esp32 can't access to RTC FAST MEMORY, do not define it with RTC_IRAM_ATTR */
-void
+RTC_SLOW_ATTR
 #else
-void RTC_IRAM_ATTR
+RTC_IRAM_ATTR
 #endif
-esp_deep_sleep_disable_rom_logging(void)
+void esp_deep_sleep_disable_rom_logging(void)
 {
     rtc_suppress_rom_log();
 }

components/esp_hw_support/test_apps/rtc_8md256/main/test_rtc_8md256.c

@@ -6,6 +6,7 @@
 
 #include <stdio.h>
 #include <string.h>
+#include <unistd.h>
 #include "esp_sleep.h"
 #include "unity.h"
 #include "unity_test_utils.h"
@@ -38,6 +39,30 @@ TEST_CASE("Can use 8MD256 as RTC clock source in deepsleep", "[pm]")
     test_deepsleep(false);
 }
 
+static void check_reset_reason_deep_sleep(void)
+{
+    TEST_ASSERT_EQUAL(ESP_RST_DEEPSLEEP, esp_reset_reason());
+}
+
+static void enter_deepsleep_by_core1(void *args)
+{
+    do {
+        test_deepsleep(false);
+    } while (1);
+}
+
+static void request_core1_do_deepsleep(void)
+{
+    fflush(stdout);
+    fsync(fileno(stdout));
+    xTaskCreatePinnedToCore(enter_deepsleep_by_core1, "deep_sleep_task", 4096, NULL, 6, NULL, 1);
+    while(1);
+}
+
+TEST_CASE_MULTIPLE_STAGES("Can use 8MD256 as RTC clock source in deepsleep (enter sleep by core1)", "[pm]",
+                            request_core1_do_deepsleep,
+                            check_reset_reason_deep_sleep);
+
 static void test_lightsleep(bool force_rtc_periph)
 {
     esp_sleep_enable_timer_wakeup(2000000);

examples/system/deep_sleep/main/deep_sleep_example_main.c

@@ -18,11 +18,7 @@
 #include "nvs.h"
 #include "deep_sleep_example.h"
 
-#if SOC_RTC_FAST_MEM_SUPPORTED
-static RTC_DATA_ATTR struct timeval sleep_enter_time;
-#else
-static struct timeval sleep_enter_time;
-#endif
+RTC_SLOW_ATTR static struct timeval sleep_enter_time;
 
 static void deep_sleep_task(void *args)
 {