esp32s2: Adds apptrace support

Closes IDF-510.
Closes IDF-1032.

components/app_trace/CMakeLists.txt

@@ -23,6 +23,9 @@ endif()
 
 if(CONFIG_HEAP_TRACING_TOHOST)
     list(APPEND srcs "heap_trace_tohost.c")
+    set_source_files_properties(heap_trace_tohost.c
+        PROPERTIES COMPILE_FLAGS
+        -Wno-frame-address)
 endif()
 
 idf_component_register(SRCS "${srcs}"

components/app_trace/Kconfig

@@ -15,9 +15,11 @@ menu "Application Level Tracing"
 
     config ESP32_APPTRACE_ENABLE
         bool
-        depends on !ESP32_TRAX
+        depends on !ESP32_TRAX && !ESP32S2_TRAX
         select ESP32_MEMMAP_TRACEMEM
+        select ESP32S2_MEMMAP_TRACEMEM
         select ESP32_MEMMAP_TRACEMEM_TWOBANKS
+        select ESP32S2_MEMMAP_TRACEMEM_TWOBANKS
         default n
         help
             Enables/disable application tracing module.

components/app_trace/app_trace.c

@@ -158,6 +158,9 @@
 #include <sys/param.h>
 #include "soc/soc.h"
 #include "soc/dport_reg.h"
+#if CONFIG_IDF_TARGET_ESP32S2BETA
+#include "soc/sensitive_reg.h"
+#endif
 #include "eri.h"
 #include "trax.h"
 #include "soc/timer_periph.h"
@@ -202,10 +205,16 @@ const static char *TAG = "esp_apptrace";
 #define ESP_APPTRACE_LOGO( format, ... )  ESP_APPTRACE_LOG_LEV(E, ESP_LOG_NONE, format, ##__VA_ARGS__)
 
 // TODO: move these (and same definitions in trax.c to dport_reg.h)
+#if CONFIG_IDF_TARGET_ESP32
 #define TRACEMEM_MUX_PROBLK0_APPBLK1            0
 #define TRACEMEM_MUX_BLK0_ONLY                  1
 #define TRACEMEM_MUX_BLK1_ONLY                  2
 #define TRACEMEM_MUX_PROBLK1_APPBLK0            3
+#elif CONFIG_IDF_TARGET_ESP32S2BETA
+#define TRACEMEM_MUX_BLK0_NUM                   19
+#define TRACEMEM_MUX_BLK1_NUM                   20
+#define TRACEMEM_BLK_NUM2ADDR(_n_)              (0x3FFB8000UL + 0x4000UL*((_n_)-4))
+#endif
 
 // TRAX is disabled, so we use its registers for our own purposes
 // | 31..XXXXXX..24 | 23 .(host_connect). 23 | 22 .(host_data). 22| 21..(block_id)..15 | 14..(block_len)..0 |
@@ -230,10 +239,17 @@ const static char *TAG = "esp_apptrace";
 #endif
 #define ESP_APPTRACE_USR_BLOCK_RAW_SZ(_s_)     ((_s_) + sizeof(esp_tracedata_hdr_t))
 
+#if CONFIG_IDF_TARGET_ESP32
 static volatile uint8_t *s_trax_blocks[] = {
     (volatile uint8_t *) 0x3FFFC000,
     (volatile uint8_t *) 0x3FFF8000
 };
+#elif CONFIG_IDF_TARGET_ESP32S2BETA
+static volatile uint8_t *s_trax_blocks[] = {
+    (volatile uint8_t *)TRACEMEM_BLK_NUM2ADDR(TRACEMEM_MUX_BLK0_NUM),
+    (volatile uint8_t *)TRACEMEM_BLK_NUM2ADDR(TRACEMEM_MUX_BLK1_NUM)
+};
+#endif
 
 #define ESP_APPTRACE_TRAX_BLOCKS_NUM            (sizeof(s_trax_blocks)/sizeof(s_trax_blocks[0]))
 
@@ -413,6 +429,17 @@ esp_err_t esp_apptrace_unlock(void)
 }
 
 #if CONFIG_ESP32_APPTRACE_DEST_TRAX
+
+static inline void esp_apptrace_trax_select_memory_block(int block_num)
+{
+    // select memory block to be exposed to the TRAX module (accessed by host)
+#if CONFIG_IDF_TARGET_ESP32
+    DPORT_WRITE_PERI_REG(DPORT_TRACEMEM_MUX_MODE_REG, block_num ? TRACEMEM_MUX_BLK0_ONLY : TRACEMEM_MUX_BLK1_ONLY);
+#elif CONFIG_IDF_TARGET_ESP32S2BETA
+    DPORT_WRITE_PERI_REG(DPORT_PMS_OCCUPY_3_REG, block_num ? BIT(TRACEMEM_MUX_BLK0_NUM-4) : BIT(TRACEMEM_MUX_BLK1_NUM-4));
+#endif
+}
+
 static void esp_apptrace_trax_init(void)
 {
     // Stop trace, if any (on the current CPU)
@@ -499,7 +526,7 @@ static esp_err_t esp_apptrace_trax_block_switch(void)
     // switch to new block
     s_trace_buf.trax.state.in_block++;
 
-    DPORT_WRITE_PERI_REG(DPORT_TRACEMEM_MUX_MODE_REG, new_block_num ? TRACEMEM_MUX_BLK0_ONLY : TRACEMEM_MUX_BLK1_ONLY);
+    esp_apptrace_trax_select_memory_block(new_block_num);
     // handle data from host
     esp_hostdata_hdr_t *hdr = (esp_hostdata_hdr_t *)s_trace_buf.trax.blocks[new_block_num].start;
     if (ctrl_reg & ESP_APPTRACE_TRAX_HOST_DATA && hdr->block_sz > 0) {
@@ -863,12 +890,13 @@ static esp_err_t esp_apptrace_trax_dest_init(void)
 #endif
 #endif
 
+#if CONFIG_IDF_TARGET_ESP32
     DPORT_WRITE_PERI_REG(DPORT_PRO_TRACEMEM_ENA_REG, DPORT_PRO_TRACEMEM_ENA_M);
 #if CONFIG_FREERTOS_UNICORE == 0
     DPORT_WRITE_PERI_REG(DPORT_APP_TRACEMEM_ENA_REG, DPORT_APP_TRACEMEM_ENA_M);
 #endif
-    // Expose block 1 to host, block 0 is current trace input buffer
-    DPORT_WRITE_PERI_REG(DPORT_TRACEMEM_MUX_MODE_REG, TRACEMEM_MUX_BLK1_ONLY);
+#endif
+    esp_apptrace_trax_select_memory_block(0);
 
     return ESP_OK;
 }

components/app_trace/sys_view/Sample/Config/SEGGER_SYSVIEW_Config_FreeRTOS.c

@@ -63,6 +63,13 @@ Revision: $Rev: 3734 $
 */
 #include "freertos/FreeRTOS.h"
 #include "SEGGER_SYSVIEW.h"
+#if CONFIG_IDF_TARGET_ESP32
+#include "esp32/rom/ets_sys.h"
+#include "esp32/clk.h"
+#elif CONFIG_IDF_TARGET_ESP32S2BETA
+#include "esp32s2beta/rom/ets_sys.h"
+#include "esp32s2beta/clk.h"
+#endif
 #include "esp_app_trace.h"
 #include "esp_app_trace_util.h"
 #include "esp_intr_alloc.h"
@@ -136,7 +143,6 @@ extern const SEGGER_SYSVIEW_OS_API SYSVIEW_X_OS_TraceAPI;
 #elif CONFIG_IDF_TARGET_ESP32S2BETA
 #define SYSVIEW_TIMESTAMP_FREQ  (CONFIG_ESP32S2_DEFAULT_CPU_FREQ_MHZ * 1000000)
 #endif
-
 #endif // TS_USE_CCOUNT
 
 // System Frequency.

components/app_trace/sys_view/esp32/SEGGER_RTT_esp32.c

@@ -18,7 +18,11 @@
 #include "SEGGER_SYSVIEW.h"
 #include "SEGGER_SYSVIEW_Conf.h"
 
+#if CONFIG_IDF_TARGET_ESP32
 #include "esp32/rom/ets_sys.h"
+#elif CONFIG_IDF_TARGET_ESP32S2BETA
+#include "esp32s2beta/rom/ets_sys.h"
+#endif
 #include "esp_app_trace.h"
 
 #include "esp_log.h"

components/esp32s2beta/Kconfig

@@ -257,7 +257,8 @@ menu "ESP32S2-specific"
 
     config ESP32S2_TRACEMEM_RESERVE_DRAM
         hex
-        default 0x4000 if ESP32S2_MEMMAP_TRACEMEM
+        default 0x8000 if ESP32S2_MEMMAP_TRACEMEM && ESP32S2_MEMMAP_TRACEMEM_TWOBANKS
+        default 0x4000 if ESP32S2_MEMMAP_TRACEMEM && !ESP32S2_MEMMAP_TRACEMEM_TWOBANKS
         default 0x0
 
 

components/esp32s2beta/ld/esp32s2beta.ld

@@ -95,8 +95,11 @@ MEMORY
 
 _static_data_end = _bss_end;
 
-/* Heap ends at top of dram0_0_seg */
-_heap_end = 0x40000000 - CONFIG_ESP32S2_TRACEMEM_RESERVE_DRAM;
+/* Heap ends at top of dram0_0_seg
+   ROM data mappings start from 0x3FFFC000,
+  0x3FFF4000...0x3FFFC000 can be reserved for trace memory mapping
+*/
+_heap_end = 0x3FFFC000 - CONFIG_ESP32S2_TRACEMEM_RESERVE_DRAM;
 
 _data_seg_org = ORIGIN(rtc_data_seg);
 

components/heap/CMakeLists.txt

@@ -13,6 +13,9 @@ endif()
 
 if(CONFIG_HEAP_TRACING_STANDALONE)
     list(APPEND srcs "heap_trace_standalone.c")
+    set_source_files_properties(heap_trace_standalone.c
+        PROPERTIES COMPILE_FLAGS
+        -Wno-frame-address)
 endif()
 
 idf_component_register(SRCS "${srcs}"