[atomic]添加arm与risc-v下的常用原子操作函数 (#7053)

* Update Kconfig
* Update trap_gcc.S
* Update bsp/hifive1/drivers/SConscript

Co-authored-by: Man, Jianting (Meco) <920369182@qq.com>
* Update SConscript
* [atomic]提交一份arm与risc-v架构下的常用原子操作函数
* 修改变量类型
* 更新rtatomic.h与atomic_port.c
* 更新rt-thread\libcpu\arm\common\atomic_port.c
* 更新include/rtatomic.h与libcpu/arm/common/SConscript
* 更新include/rtatomic.h
* 修正格式与Kconfig
* 修正格式与文件结构

* 规范文件格式与文件重命名
* 添加测试用例与CI
* 添加函数声明
* 修改virt64/SConscript 添加atomic_riscv.c
  * 1.规范代码风格
  * 2.添加RISC-V64原子指令支持 解决在RV64下编译器将32-bit运算结果扩展为64-bit 导致判断错误
* 添加C11标准库原子操作测试

---------

Co-authored-by: Man, Jianting (Meco) <920369182@qq.com>

.github/workflows/action_utest.yml

@@ -37,9 +37,13 @@ jobs:
          - {UTEST: "kernel/irq",       RTT_BSP: "bsp/qemu-vexpress-a9",    QEMU_ARCH: "arm",      QEMU_MACHINE: "vexpress-a9", CONFIG_FILE: "kernel/irq.conf",     SD_FILE: "sd.bin", RUN: "yes"}
          - {UTEST: "kernel/timer",     RTT_BSP: "bsp/qemu-vexpress-a9",    QEMU_ARCH: "arm",      QEMU_MACHINE: "vexpress-a9", CONFIG_FILE: "kernel/timer.conf",   SD_FILE: "sd.bin", RUN: "yes"}
          - {UTEST: "kernel/thread",    RTT_BSP: "bsp/qemu-vexpress-a9",    QEMU_ARCH: "arm",      QEMU_MACHINE: "vexpress-a9", CONFIG_FILE: "kernel/thread.conf",  SD_FILE: "sd.bin", RUN: "yes"}
+         - {UTEST: "kernel/atomic",    RTT_BSP: "bsp/qemu-vexpress-a9",    QEMU_ARCH: "arm",      QEMU_MACHINE: "vexpress-a9", CONFIG_FILE: "kernel/atomic.conf",  SD_FILE: "sd.bin", RUN: "yes"}
+         - {UTEST: "kernel/atomic_c11",    RTT_BSP: "bsp/qemu-vexpress-a9",    QEMU_ARCH: "arm",      QEMU_MACHINE: "vexpress-a9", CONFIG_FILE: "kernel/atomic_c11.conf",  SD_FILE: "sd.bin", RUN: "yes"}
          - {UTEST: "components/utest", RTT_BSP: "bsp/qemu-vexpress-a9",    QEMU_ARCH: "arm",      QEMU_MACHINE: "vexpress-a9", CONFIG_FILE: "utest_self/self.conf", SD_FILE: "sd.bin", RUN: "yes"}
          - {UTEST: "components/cpp11", RTT_BSP: "bsp/qemu-vexpress-a9",    QEMU_ARCH: "arm",      QEMU_MACHINE: "vexpress-a9", CONFIG_FILE: "cpp11/cpp11.conf",    SD_FILE: "sd.bin", RUN: "yes"}
          - {UTEST: "kernel/mem/riscv64", RTT_BSP: "bsp/qemu-virt64-riscv", QEMU_ARCH: "riscv64",  QEMU_MACHINE: "virt",  CONFIG_FILE: "kernel/mem.conf",   SD_FILE: "None", RUN: "yes"}
+         - {UTEST: "kernel/atomic/riscv64", RTT_BSP: "bsp/qemu-virt64-riscv", QEMU_ARCH: "riscv64",  QEMU_MACHINE: "virt",  CONFIG_FILE: "kernel/atomic.conf",   SD_FILE: "None", RUN: "yes"}
+         - {UTEST: "kernel/atomic_c11/riscv64", RTT_BSP: "bsp/qemu-virt64-riscv", QEMU_ARCH: "riscv64",  QEMU_MACHINE: "virt",  CONFIG_FILE: "kernel/atomic_c11.conf",   SD_FILE: "None", RUN: "yes"}
          - {UTEST: "rtsmart/arm",     RTT_BSP: "bsp/qemu-vexpress-a9",    QEMU_ARCH: "arm",      QEMU_MACHINE: "vexpress-a9", CONFIG_FILE: "rtsmart/base.conf",   SD_FILE: "sd.bin", RUN: "no"}
          - {UTEST: "rtsmart/aarch64", RTT_BSP: "bsp/qemu-virt64-aarch64", QEMU_ARCH: "aarch64",  QEMU_MACHINE: "virt",  CONFIG_FILE: "rtsmart/base.conf",   SD_FILE: "sd.bin", RUN: "no"}
          - {UTEST: "rtsmart/riscv64", RTT_BSP: "bsp/qemu-virt64-riscv",   QEMU_ARCH: "riscv64",  QEMU_MACHINE: "virt",  CONFIG_FILE: "rtsmart/base.conf",   SD_FILE: "None", RUN: "yes"}

bsp/gd32/risc-v/libraries/Kconfig

@@ -5,4 +5,5 @@ config SOC_GD32VF103V
     bool
     select SOC_SERIES_GD32VF103V
     select SOC_FAMILY_GD32
+    select RT_USING_HW_ATOMIC
 

bsp/gd32vf103v-eval/board/Kconfig

@@ -3,6 +3,7 @@ menu "Hardware Drivers Config"
 config SOC_GD32VF103V
     bool
     select SOC_SERIES_GD32VF103V
+    select RT_USING_HW_ATOMIC
     default y
 
 menu "Onboard Peripheral Drivers"

bsp/hifive1/Kconfig

@@ -22,4 +22,5 @@ config SOC_FE310
     bool
     select RT_USING_COMPONENTS_INIT
     select RT_USING_USER_MAIN
+    select RT_USING_HW_ATOMIC
     default y

bsp/hpmicro/hpm6750evk/board/Kconfig

@@ -5,6 +5,7 @@ config SOC_HPM6000
     select SOC_SERIES_HPM6000
     select RT_USING_COMPONENTS_INIT
     select RT_USING_USER_MAIN
+    select RT_USING_HW_ATOMIC
     default y
 
 menu "On-chip Peripheral Drivers"

bsp/hpmicro/hpm6750evkmini/.config

@@ -47,6 +47,7 @@ CONFIG_RT_USING_MESSAGEQUEUE=y
 #
 # Memory Management
 #
+CONFIG_RT_PAGE_MAX_ORDER=11
 CONFIG_RT_USING_MEMPOOL=y
 CONFIG_RT_USING_SMALL_MEM=y
 # CONFIG_RT_USING_SLAB is not set
@@ -65,13 +66,18 @@ CONFIG_RT_USING_HEAP=y
 #
 CONFIG_RT_USING_DEVICE=y
 # CONFIG_RT_USING_DEVICE_OPS is not set
+# CONFIG_RT_USING_DM is not set
 # CONFIG_RT_USING_INTERRUPT_INFO is not set
 CONFIG_RT_USING_CONSOLE=y
 CONFIG_RT_CONSOLEBUF_SIZE=128
 CONFIG_RT_CONSOLE_DEVICE_NAME="uart0"
 CONFIG_RT_VER_NUM=0x50000
-# CONFIG_RT_USING_CPU_FFS is not set
+# CONFIG_RT_USING_STDC_ATOMIC is not set
+# CONFIG_RT_USING_CACHE is not set
+CONFIG_RT_USING_HW_ATOMIC=y
+# CONFIG_ARCH_ARM_BOOTWITH_FLUSH_CACHE is not set
 # CONFIG_ARCH_CPU_STACK_GROWS_UPWARD is not set
+# CONFIG_RT_USING_CPU_FFS is not set
 
 #
 # RT-Thread Components
@@ -103,6 +109,7 @@ CONFIG_FINSH_ARG_MAX=10
 # Device Drivers
 #
 CONFIG_RT_USING_DEVICE_IPC=y
+CONFIG_RT_UNAMED_PIPE_NUMBER=64
 # CONFIG_RT_USING_SYSTEM_WORKQUEUE is not set
 CONFIG_RT_USING_SERIAL=y
 CONFIG_RT_USING_SERIAL_V1=y
@@ -117,10 +124,14 @@ CONFIG_RT_SERIAL_RB_BUFSZ=64
 CONFIG_RT_USING_PIN=y
 # CONFIG_RT_USING_ADC is not set
 # CONFIG_RT_USING_DAC is not set
+# CONFIG_RT_USING_NULL is not set
+# CONFIG_RT_USING_ZERO is not set
+# CONFIG_RT_USING_RANDOM is not set
 # CONFIG_RT_USING_PWM is not set
 # CONFIG_RT_USING_MTD_NOR is not set
 # CONFIG_RT_USING_MTD_NAND is not set
 # CONFIG_RT_USING_PM is not set
+# CONFIG_RT_USING_FDT is not set
 CONFIG_RT_USING_RTC=y
 # CONFIG_RT_USING_ALARM is not set
 # CONFIG_RT_USING_SOFT_RTC is not set
@@ -130,10 +141,13 @@ CONFIG_RT_USING_RTC=y
 # CONFIG_RT_USING_AUDIO is not set
 # CONFIG_RT_USING_SENSOR is not set
 # CONFIG_RT_USING_TOUCH is not set
+# CONFIG_RT_USING_LCD is not set
 # CONFIG_RT_USING_HWCRYPTO is not set
 # CONFIG_RT_USING_PULSE_ENCODER is not set
 # CONFIG_RT_USING_INPUT_CAPTURE is not set
+# CONFIG_RT_USING_DEV_BUS is not set
 # CONFIG_RT_USING_WIFI is not set
+# CONFIG_RT_USING_VIRTIO is not set
 
 #
 # Using USB
@@ -184,6 +198,7 @@ CONFIG_RT_LIBC_DEFAULT_TIMEZONE=8
 # CONFIG_RT_USING_ULOG is not set
 # CONFIG_RT_USING_UTEST is not set
 # CONFIG_RT_USING_VAR_EXPORT is not set
+# CONFIG_RT_USING_ADT is not set
 # CONFIG_RT_USING_RT_LINK is not set
 # CONFIG_RT_USING_VBUS is not set
 
@@ -278,6 +293,7 @@ CONFIG_RT_LIBC_DEFAULT_TIMEZONE=8
 # CONFIG_PKG_USING_AGILE_FTP is not set
 # CONFIG_PKG_USING_EMBEDDEDPROTO is not set
 # CONFIG_PKG_USING_RT_LINK_HW is not set
+# CONFIG_PKG_USING_RYANMQTT is not set
 # CONFIG_PKG_USING_LORA_PKT_FWD is not set
 # CONFIG_PKG_USING_LORA_GW_DRIVER_LIB is not set
 # CONFIG_PKG_USING_LORA_PKT_SNIFFER is not set
@@ -285,6 +301,7 @@ CONFIG_RT_LIBC_DEFAULT_TIMEZONE=8
 # CONFIG_PKG_USING_SMALL_MODBUS is not set
 # CONFIG_PKG_USING_NET_SERVER is not set
 # CONFIG_PKG_USING_ZFTP is not set
+# CONFIG_PKG_USING_WOL is not set
 
 #
 # security packages
@@ -375,7 +392,6 @@ CONFIG_RT_LIBC_DEFAULT_TIMEZONE=8
 # CONFIG_PKG_USING_SEGGER_RTT is not set
 # CONFIG_PKG_USING_RDB is not set
 # CONFIG_PKG_USING_ULOG_EASYFLASH is not set
-# CONFIG_PKG_USING_ULOG_FILE is not set
 # CONFIG_PKG_USING_LOGMGR is not set
 # CONFIG_PKG_USING_ADBD is not set
 # CONFIG_PKG_USING_COREMARK is not set
@@ -409,7 +425,6 @@ CONFIG_RT_LIBC_DEFAULT_TIMEZONE=8
 # CONFIG_PKG_USING_CBOX is not set
 # CONFIG_PKG_USING_SNOWFLAKE is not set
 # CONFIG_PKG_USING_HASH_MATCH is not set
-# CONFIG_PKG_USING_FIRE_PID_CURVE is not set
 # CONFIG_PKG_USING_ARMV7M_DWT_TOOL is not set
 # CONFIG_PKG_USING_VOFA_PLUS is not set
 
@@ -481,15 +496,88 @@ CONFIG_RT_LIBC_DEFAULT_TIMEZONE=8
 # CONFIG_PKG_USING_KMULTI_RTIMER is not set
 # CONFIG_PKG_USING_TFDB is not set
 # CONFIG_PKG_USING_QPC is not set
+# CONFIG_PKG_USING_AGILE_UPGRADE is not set
 
 #
 # peripheral libraries and drivers
 #
-# CONFIG_PKG_USING_SENSORS_DRIVERS is not set
+
-# CONFIG_PKG_USING_REALTEK_AMEBA is not set
+#
+# sensors drivers
+#
+# CONFIG_PKG_USING_FINGERPRINT is not set
+# CONFIG_PKG_USING_LSM6DSM is not set
+# CONFIG_PKG_USING_LSM6DSL is not set
+# CONFIG_PKG_USING_LPS22HB is not set
+# CONFIG_PKG_USING_HTS221 is not set
+# CONFIG_PKG_USING_LSM303AGR is not set
+# CONFIG_PKG_USING_BME280 is not set
+# CONFIG_PKG_USING_BME680 is not set
+# CONFIG_PKG_USING_BMA400 is not set
+# CONFIG_PKG_USING_BMI160_BMX160 is not set
+# CONFIG_PKG_USING_SPL0601 is not set
+# CONFIG_PKG_USING_MS5805 is not set
+# CONFIG_PKG_USING_DA270 is not set
+# CONFIG_PKG_USING_DF220 is not set
+# CONFIG_PKG_USING_HSHCAL001 is not set
+# CONFIG_PKG_USING_BH1750 is not set
+# CONFIG_PKG_USING_MPU6XXX is not set
+# CONFIG_PKG_USING_AHT10 is not set
+# CONFIG_PKG_USING_AP3216C is not set
+# CONFIG_PKG_USING_TSL4531 is not set
+# CONFIG_PKG_USING_DS18B20 is not set
+# CONFIG_PKG_USING_DHT11 is not set
+# CONFIG_PKG_USING_DHTXX is not set
+# CONFIG_PKG_USING_GY271 is not set
+# CONFIG_PKG_USING_GP2Y10 is not set
+# CONFIG_PKG_USING_SGP30 is not set
+# CONFIG_PKG_USING_HDC1000 is not set
+# CONFIG_PKG_USING_BMP180 is not set
+# CONFIG_PKG_USING_BMP280 is not set
+# CONFIG_PKG_USING_SHTC1 is not set
+# CONFIG_PKG_USING_BMI088 is not set
+# CONFIG_PKG_USING_HMC5883 is not set
+# CONFIG_PKG_USING_MAX6675 is not set
+# CONFIG_PKG_USING_TMP1075 is not set
+# CONFIG_PKG_USING_SR04 is not set
+# CONFIG_PKG_USING_CCS811 is not set
+# CONFIG_PKG_USING_PMSXX is not set
+# CONFIG_PKG_USING_RT3020 is not set
+# CONFIG_PKG_USING_MLX90632 is not set
+# CONFIG_PKG_USING_MLX90393 is not set
+# CONFIG_PKG_USING_MLX90392 is not set
+# CONFIG_PKG_USING_MLX90397 is not set
+# CONFIG_PKG_USING_MS5611 is not set
+# CONFIG_PKG_USING_MAX31865 is not set
+# CONFIG_PKG_USING_VL53L0X is not set
+# CONFIG_PKG_USING_INA260 is not set
+# CONFIG_PKG_USING_MAX30102 is not set
+# CONFIG_PKG_USING_INA226 is not set
+# CONFIG_PKG_USING_LIS2DH12 is not set
+# CONFIG_PKG_USING_HS300X is not set
+# CONFIG_PKG_USING_ZMOD4410 is not set
+# CONFIG_PKG_USING_ISL29035 is not set
+# CONFIG_PKG_USING_MMC3680KJ is not set
+# CONFIG_PKG_USING_QMP6989 is not set
+# CONFIG_PKG_USING_BALANCE is not set
 # CONFIG_PKG_USING_SHT2X is not set
 # CONFIG_PKG_USING_SHT3X is not set
+# CONFIG_PKG_USING_AD7746 is not set
 # CONFIG_PKG_USING_ADT74XX is not set
+# CONFIG_PKG_USING_MAX17048 is not set
+
+#
+# touch drivers
+#
+# CONFIG_PKG_USING_GT9147 is not set
+# CONFIG_PKG_USING_GT1151 is not set
+# CONFIG_PKG_USING_GT917S is not set
+# CONFIG_PKG_USING_GT911 is not set
+# CONFIG_PKG_USING_FT6206 is not set
+# CONFIG_PKG_USING_FT5426 is not set
+# CONFIG_PKG_USING_FT6236 is not set
+# CONFIG_PKG_USING_XPT2046_TOUCH is not set
+# CONFIG_PKG_USING_REALTEK_AMEBA is not set
 # CONFIG_PKG_USING_AS7341 is not set
 # CONFIG_PKG_USING_STM32_SDIO is not set
 # CONFIG_PKG_USING_ESP_IDF is not set
@@ -516,12 +604,9 @@ CONFIG_RT_LIBC_DEFAULT_TIMEZONE=8
 # CONFIG_PKG_USING_AGILE_LED is not set
 # CONFIG_PKG_USING_AT24CXX is not set
 # CONFIG_PKG_USING_MOTIONDRIVER2RTT is not set
-# CONFIG_PKG_USING_AD7746 is not set
 # CONFIG_PKG_USING_PCA9685 is not set
 # CONFIG_PKG_USING_I2C_TOOLS is not set
 # CONFIG_PKG_USING_NRF24L01 is not set
-# CONFIG_PKG_USING_TOUCH_DRIVERS is not set
-# CONFIG_PKG_USING_MAX17048 is not set
 # CONFIG_PKG_USING_RPLIDAR is not set
 # CONFIG_PKG_USING_AS608 is not set
 # CONFIG_PKG_USING_RC522 is not set
@@ -571,6 +656,7 @@ CONFIG_RT_LIBC_DEFAULT_TIMEZONE=8
 # CONFIG_PKG_USING_RFM300 is not set
 # CONFIG_PKG_USING_IO_INPUT_FILTER is not set
 # CONFIG_PKG_USING_RASPBERRYPI_PICO_SDK is not set
+# CONFIG_PKG_USING_LRF_NV7LIDAR is not set
 
 #
 # AI packages
@@ -585,6 +671,12 @@ CONFIG_RT_LIBC_DEFAULT_TIMEZONE=8
 # CONFIG_PKG_USING_QUEST is not set
 # CONFIG_PKG_USING_NAXOS is not set
 
+#
+# Signal Processing and Control Algorithm Packages
+#
+# CONFIG_PKG_USING_FIRE_PID_CURVE is not set
+# CONFIG_PKG_USING_UKAL is not set
+
 #
 # miscellaneous packages
 #
@@ -636,7 +728,6 @@ CONFIG_RT_LIBC_DEFAULT_TIMEZONE=8
 # CONFIG_PKG_USING_VI is not set
 # CONFIG_PKG_USING_KI is not set
 # CONFIG_PKG_USING_ARMv7M_DWT is not set
-# CONFIG_PKG_USING_UKAL is not set
 # CONFIG_PKG_USING_CRCLIB is not set
 # CONFIG_PKG_USING_LWGPS is not set
 # CONFIG_PKG_USING_STATE_MACHINE is not set
@@ -647,6 +738,7 @@ CONFIG_RT_LIBC_DEFAULT_TIMEZONE=8
 # CONFIG_PKG_USING_SLCAN2RTT is not set
 # CONFIG_PKG_USING_SOEM is not set
 # CONFIG_PKG_USING_QPARAM is not set
+# CONFIG_PKG_USING_CorevMCU_CLI is not set
 
 #
 # Arduino libraries
@@ -654,30 +746,204 @@ CONFIG_RT_LIBC_DEFAULT_TIMEZONE=8
 # CONFIG_PKG_USING_RTDUINO is not set
 
 #
-# Sensor libraries
+# Projects
 #
-# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_SENSOR is not set
+# CONFIG_PKG_USING_ARDUINO_ULTRASOUND_RADAR is not set
-# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_BUSIO is not set
+# CONFIG_PKG_USING_ARDUINO_SENSOR_KIT is not set
-# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_AHTX0 is not set
+# CONFIG_PKG_USING_ARDUINO_MATLAB_SUPPORT is not set
-# CONFIG_PKG_USING_ARDUINO_SEEED_BMP280 is not set
-# CONFIG_PKG_USING_ARDUINO_SEEED_LIS3DHTR is not set
-# CONFIG_PKG_USING_ARDUINO_CAPACITIVESENSOR is not set
 
 #
-# Display libraries
+# Sensors
+#
+# CONFIG_PKG_USING_ARDUINO_SENSOR_DEVICE_DRIVERS is not set
+# CONFIG_PKG_USING_ARDUINO_CAPACITIVESENSOR is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_ADXL375 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_VL53L0X is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_VL53L1X is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_SENSOR is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_VL6180X is not set
+# CONFIG_PKG_USING_ADAFRUIT_MAX31855 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_MAX31865 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_MAX31856 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_MAX6675 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_MLX90614 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_LSM9DS1 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_AHTX0 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_LSM9DS0 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_BMP280 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_ADT7410 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_BMP085 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_BME680 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_MCP9808 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_MCP4728 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_INA219 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_LTR390 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_ADXL345 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_DHT is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_MCP9600 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_LSM6DS is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_BNO055 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_MAX1704X is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_MMC56X3 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_MLX90393 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_MLX90395 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_ICM20X is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_DPS310 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_HTS221 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_SHT4X is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_SHT31 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_ADXL343 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_BME280 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_AS726X is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_AMG88XX is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_AM2320 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_AM2315 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_LTR329_LTR303 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_BMP085_UNIFIED is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_BMP183 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_BMP183_UNIFIED is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_BMP3XX is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_MS8607 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_LIS3MDL is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_MLX90640 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_MMA8451 is not set
+# CONFIG_PKG_USING_ADAFRUIT_MSA301 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_MPL115A2 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_BNO08X is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_BNO08X_RVC is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_LIS2MDL is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_LSM303DLH_MAG is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_LC709203F is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_CAP1188 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_CCS811 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_NAU7802 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_LIS331 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_LPS2X is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_LPS35HW is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_LSM303_ACCEL is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_LIS3DH is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_PCF8591 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_MPL3115A2 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_MPR121 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_MPRLS is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_MPU6050 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_PCT2075 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_PM25AQI is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_EMC2101 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_FXAS21002C is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_SCD30 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_FXOS8700 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_HMC5883_UNIFIED is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_SGP30 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_TMP006 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_TLA202X is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_TCS34725 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_SI7021 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_SI1145 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_SGP40 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_SHTC3 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_HDC1000 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_HTU21DF is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_AS7341 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_HTU31D is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_SENSORLAB is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_INA260 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_TMP007_LIBRARY is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_L3GD20 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_TMP117 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_TSC2007 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_TSL2561 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_TSL2591_LIBRARY is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_VCNL4040 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_VEML6070 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_VEML6075 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_VEML7700 is not set
+# CONFIG_PKG_USING_ARDUINO_SEEED_LIS3DHTR is not set
+# CONFIG_PKG_USING_ARDUINO_SEEED_DHT is not set
+# CONFIG_PKG_USING_ARDUINO_SEEED_ADXL335 is not set
+# CONFIG_PKG_USING_ARDUINO_SEEED_ADXL345 is not set
+# CONFIG_PKG_USING_ARDUINO_SEEED_BME280 is not set
+# CONFIG_PKG_USING_ARDUINO_SEEED_BMP280 is not set
+# CONFIG_PKG_USING_ARDUINO_SEEED_H3LIS331DL is not set
+# CONFIG_PKG_USING_ARDUINO_SEEED_MMA7660 is not set
+# CONFIG_PKG_USING_ARDUINO_SEEED_TSL2561 is not set
+# CONFIG_PKG_USING_ARDUINO_SEEED_PAJ7620 is not set
+# CONFIG_PKG_USING_ARDUINO_SEEED_VL53L0X is not set
+# CONFIG_PKG_USING_SEEED_ITG3200 is not set
+# CONFIG_PKG_USING_ARDUINO_SEEED_SHT31 is not set
+# CONFIG_PKG_USING_ARDUINO_SEEED_HP20X is not set
+# CONFIG_PKG_USING_ARDUINO_SEEED_DRV2605L is not set
+# CONFIG_PKG_USING_ARDUINO_SEEED_BBM150 is not set
+# CONFIG_PKG_USING_ARDUINO_SEEED_HMC5883L is not set
+# CONFIG_PKG_USING_ARDUINO_SEEED_LSM303DLH is not set
+# CONFIG_PKG_USING_ARDUINO_SEEED_TCS3414CS is not set
+# CONFIG_PKG_USING_SEEED_MP503 is not set
+# CONFIG_PKG_USING_ARDUINO_SEEED_BMP085 is not set
+# CONFIG_PKG_USING_ARDUINO_SEEED_HIGHTEMP is not set
+# CONFIG_PKG_USING_ARDUINO_SEEED_VEML6070 is not set
+# CONFIG_PKG_USING_ARDUINO_SEEED_SI1145 is not set
+# CONFIG_PKG_USING_ARDUINO_SEEED_SHT35 is not set
+# CONFIG_PKG_USING_ARDUINO_SEEED_AT42QT1070 is not set
+# CONFIG_PKG_USING_ARDUINO_SEEED_LSM6DS3 is not set
+# CONFIG_PKG_USING_ARDUINO_SEEED_HDC1000 is not set
+# CONFIG_PKG_USING_ARDUINO_SEEED_HM3301 is not set
+# CONFIG_PKG_USING_ARDUINO_SEEED_MCP9600 is not set
+# CONFIG_PKG_USING_ARDUINO_SEEED_LTC2941 is not set
+# CONFIG_PKG_USING_ARDUINO_SEEED_LDC1612 is not set
+
+#
+# Display
 #
 # CONFIG_PKG_USING_ARDUINO_U8G2 is not set
+# CONFIG_PKG_USING_SEEED_TM1637 is not set
 
 #
-# Timing libraries
+# Timing
 #
 # CONFIG_PKG_USING_ARDUINO_MSTIMER2 is not set
 
 #
-# Project libraries
+# Data Processing
+#
+# CONFIG_PKG_USING_ARDUINO_KALMANFILTER is not set
+# CONFIG_PKG_USING_ARDUINO_ARDUINOJSON is not set
+
+#
+# Data Storage
+#
+
+#
+# Communication
+#
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_PN532 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_SI4713 is not set
+
+#
+# Device Control
+#
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_PCF8574 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_PCA9685 is not set
+# CONFIG_PKG_USING_ARDUINO_SEEED_PCF85063TP is not set
+
+#
+# Other
+#
+
+#
+# Signal IO
+#
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_BUSIO is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_TCA8418 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_MCP23017 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_ADS1X15 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_AW9523 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_MCP3008 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_MCP4725 is not set
+# CONFIG_PKG_USING_ARDUINO_ADAFRUIT_BD3491FS is not set
+
+#
+# Uncategorized
 #
-# CONFIG_PKG_USING_ARDUINO_ULTRASOUND_RADAR is not set
-# CONFIG_PKG_USING_ARDUINO_SENSOR_KIT is not set
 
 #
 # Hardware Drivers Config

bsp/hpmicro/hpm6750evkmini/applications/main.c

@@ -13,8 +13,6 @@
 
 void thread_entry(void *arg);
 
-
-
 int main(void)
 {
 
@@ -27,7 +25,6 @@ int main(void)
     return 0;
 }
 
-
 void thread_entry(void *arg)
 {
     while(1){

bsp/hpmicro/hpm6750evkmini/board/Kconfig

@@ -5,6 +5,7 @@ config SOC_HPM6000
     select SOC_SERIES_HPM6000
     select RT_USING_COMPONENTS_INIT
     select RT_USING_USER_MAIN
+    select RT_USING_HW_ATOMIC
     default y
 
 menu "On-chip Peripheral Drivers"

bsp/hpmicro/hpm6750evkmini/rtconfig.h

@@ -34,6 +34,7 @@
 
 /* Memory Management */
 
+#define RT_PAGE_MAX_ORDER 11
 #define RT_USING_MEMPOOL
 #define RT_USING_SMALL_MEM
 #define RT_USING_SMALL_MEM_AS_HEAP
@@ -46,6 +47,7 @@
 #define RT_CONSOLEBUF_SIZE 128
 #define RT_CONSOLE_DEVICE_NAME "uart0"
 #define RT_VER_NUM 0x50000
+#define RT_USING_HW_ATOMIC
 
 /* RT-Thread Components */
 
@@ -71,6 +73,7 @@
 /* Device Drivers */
 
 #define RT_USING_DEVICE_IPC
+#define RT_UNAMED_PIPE_NUMBER 64
 #define RT_USING_SERIAL
 #define RT_USING_SERIAL_V1
 #define RT_SERIAL_RB_BUFSZ 64
@@ -159,6 +162,11 @@
 
 /* peripheral libraries and drivers */
 
+/* sensors drivers */
+
+
+/* touch drivers */
+
 
 /* Kendryte SDK */
 
@@ -166,6 +174,9 @@
 /* AI packages */
 
 
+/* Signal Processing and Control Algorithm Packages */
+
+
 /* miscellaneous packages */
 
 /* project laboratory */
@@ -179,18 +190,36 @@
 /* Arduino libraries */
 
 
-/* Sensor libraries */
+/* Projects */
 
 
-/* Display libraries */
+/* Sensors */
 
 
-/* Timing libraries */
+/* Display */
 
 
-/* Project libraries */
+/* Timing */
 
 
+/* Data Processing */
+
+
+/* Data Storage */
+
+/* Communication */
+
+
+/* Device Control */
+
+
+/* Other */
+
+/* Signal IO */
+
+
+/* Uncategorized */
+
 /* Hardware Drivers Config */
 
 #define SOC_HPM6000

bsp/k210/drivers/Kconfig

@@ -3,6 +3,7 @@ config SOC_K210
     select ARCH_RISCV64
     select ARCH_RISCV_FPU_S
     select PKG_USING_K210_SDK
+    select RT_USING_HW_ATOMIC
 
 config BOARD_K210_EVB
     bool

bsp/nuclei/gd32vf103_rvstar/board/Kconfig

@@ -3,6 +3,7 @@ menu "Hardware Drivers Config"
 config SOC_GD32VF103V
     bool
     select SOC_SERIES_GD32VF103V
+    select RT_USING_HW_ATOMIC
     default y
 
 menu "Onboard Peripheral Drivers"

bsp/nuclei/nuclei_fpga_eval/board/Kconfig

@@ -3,6 +3,7 @@ menu "Hardware Drivers Config"
 config SOC_HUMMINGBIRD
     bool
     select SOC_SERIES_HUMMINGBIRD
+    select RT_USING_HW_ATOMIC
     default y
 
 menu "Onboard Peripheral Drivers"

bsp/qemu-virt64-riscv/Kconfig

@@ -27,6 +27,7 @@ config BOARD_QEMU_VIRT_RV64
     select RT_USING_USER_MAIN
     select RT_USING_CACHE
     select ARCH_MM_MMU
+    select RT_USING_HW_ATOMIC
     default y
 
 config ENABLE_FPU

bsp/sparkfun-redv/Kconfig

@@ -22,5 +22,6 @@ config SOC_FE310
     bool
     select RT_USING_COMPONENTS_INIT
     select RT_USING_USER_MAIN
+    select RT_USING_HW_ATOMIC
     default y
 

bsp/wch/risc-v/Libraries/Kconfig

@@ -5,21 +5,26 @@ config SOC_RISCV_SERIES_CH32V1
     bool
     select ARCH_RISCV
     select SOC_RISCV_FAMILY_CH32
+    select RT_USING_HW_ATOMIC
 
 config SOC_RISCV_SERIES_CH32V2
     bool
     select ARCH_RISCV
     select SOC_RISCV_FAMILY_CH32
+    select RT_USING_HW_ATOMIC
 
 config SOC_RISCV_SERIES_CH32V3
     bool
     select ARCH_RISCV
     select SOC_RISCV_FAMILY_CH32
+    select RT_USING_HW_ATOMIC
 
 config SOC_FAMILY_CH56X
     bool
     select ARCH_RISCV
+    select RT_USING_HW_ATOMIC
 
 config SOC_SERIES_CH569
     bool
     select SOC_FAMILY_CH56X
+    select RT_USING_HW_ATOMIC

examples/utest/configs/kernel/atomic.conf

@@ -0,0 +1,4 @@
+CONFIG_UTEST_ATOMIC_TC=y
+# dependencies
+CONFIG_RT_USING_TIMER_SOFT=y
+CONFIG_RT_USING_THREAD=y

examples/utest/configs/kernel/atomic_c11.conf

@@ -0,0 +1,5 @@
+CONFIG_UTEST_ATOMIC_TC=y
+# dependencies
+CONFIG_RT_USING_TIMER_SOFT=y
+CONFIG_RT_USING_THREAD=y
+CONFIG_RT_USING_STDC_ATOMIC=y

examples/utest/testcases/kernel/Kconfig

@@ -55,4 +55,8 @@ config UTEST_THREAD_TC
     select RT_USING_TIMER_SOFT
     select RT_USING_THREAD
 
+config UTEST_ATOMIC_TC
+    bool "atomic test"
+    default n
+    
 endmenu

examples/utest/testcases/kernel/SConscript

@@ -41,6 +41,9 @@ if GetDepend(['UTEST_MAILBOX_TC']):
 if GetDepend(['UTEST_THREAD_TC']):
     src += ['thread_tc.c']
 
+if GetDepend(['UTEST_ATOMIC_TC']):
+    src += ['atomic_tc.c']
+
 group = DefineGroup('utestcases', src, depend = ['RT_USING_UTESTCASES'], CPPPATH = CPPPATH)
 
 Return('group')

examples/utest/testcases/kernel/atomic_tc.c

@@ -0,0 +1,147 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2022-07-27     flybreak     the first version
+ * 2023-03-21     WangShun     add atomic test
+ */
+
+#include <rtthread.h>
+#include "utest.h"
+#include "rtatomic.h"
+#include <rthw.h>
+
+#define THREAD_PRIORITY         25
+#define THREAD_TIMESLICE        1
+#define THREAD_STACKSIZE        1024
+
+/* convenience macro - return either 64-bit or 32-bit value */
+#define ATOMIC_WORD(val_if_64, val_if_32)                                           \
+    ((rt_atomic_t)((sizeof(void *) == sizeof(uint64_t)) ? (val_if_64) : (val_if_32)))
+
+static rt_atomic_t count = 0;
+static rt_sem_t sem_t;
+
+static void test_atomic_api(void)
+{
+    rt_atomic_t base;
+    rt_atomic_t oldval;
+
+    /* rt_atomic_t */
+    uassert_true(sizeof(rt_atomic_t) == ATOMIC_WORD(sizeof(uint64_t), sizeof(uint32_t)));
+
+    /* rt_atomic_add */
+    base = 0;
+    rt_atomic_add(&base, 10);
+    uassert_true(base == 10);
+    /* rt_atomic_add negative */
+    base = 2;
+    rt_atomic_add(&base, -4);
+    uassert_true(base == -2);
+
+    /* rt_atomic_sub */
+    base = 11;
+    rt_atomic_sub(&base, 10);
+    uassert_true(base == 1);
+    /* rt_atomic_sub negative */
+    base = 2;
+    rt_atomic_sub(&base, -5);
+    uassert_true(base == 7);
+
+    /* rt_atomic_or */
+    base = 0xFF00;
+    rt_atomic_or(&base, 0x0F0F);
+    uassert_true(base == 0xFF0F);
+
+    /* rt_atomic_xor */
+    base = 0xFF00;
+    rt_atomic_xor(&base, 0x0F0F);
+    uassert_true(base == 0xF00F);
+
+    /* rt_atomic_and */
+    base = 0xFF00;
+    rt_atomic_and(&base, 0x0F0F);
+    uassert_true(base == 0x0F00);
+
+    /* rt_atomic_exchange */
+    base = 0xFF00;
+    rt_atomic_exchange(&base, 0x0F0F);
+    uassert_true(base == 0x0F0F);
+
+    /* rt_atomic_flag_test_and_set */
+    base = 0x0;
+    rt_atomic_flag_test_and_set(&base);
+    uassert_true(base == 0x1);
+
+    /* rt_atomic_flag_clear */
+    base = 0x1;
+    rt_atomic_flag_clear(&base);
+    uassert_true(base == 0x0);
+
+    /* rt_atomic_load */
+    base = 0xFF00;
+    rt_atomic_load(&base);
+    uassert_true(base == 0xFF00);
+
+    /* rt_atomic_store */
+    base = 0xFF00;
+    rt_atomic_store(&base, 0x0F0F);
+    uassert_true(base == 0x0F0F);
+
+    /* rt_atomic_compare_exchange_strong */
+    base = 10;
+    oldval = 10;
+    uassert_true(rt_atomic_compare_exchange_strong(&base, &oldval, 11) == 1);
+    uassert_true(base == 11);
+}
+
+static void ture_entry(void *parameter)
+{
+    int i;
+    for(i = 0; i < 1000000; i++)
+    {
+        rt_atomic_add(&count, 1);
+    }
+    rt_sem_release(sem_t);
+}
+
+static void test_atomic_add(void)
+{
+    rt_thread_t thread;
+    int i;
+    sem_t = rt_sem_create("atomic_sem", 0, RT_IPC_FLAG_PRIO);
+
+    count = 0;
+    thread = rt_thread_create("t1", ture_entry, RT_NULL, THREAD_STACKSIZE, THREAD_PRIORITY, THREAD_TIMESLICE);
+    rt_thread_startup(thread);
+    thread = rt_thread_create("t2", ture_entry, RT_NULL, THREAD_STACKSIZE, THREAD_PRIORITY, THREAD_TIMESLICE);
+    rt_thread_startup(thread);
+    thread = rt_thread_create("t3", ture_entry, RT_NULL, THREAD_STACKSIZE, THREAD_PRIORITY, THREAD_TIMESLICE);
+    rt_thread_startup(thread);
+
+    for(i = 0; i < 3; i++)
+    {
+        rt_sem_take(sem_t, RT_WAITING_FOREVER);
+    }
+    uassert_true(count == 3000000);
+}
+
+static rt_err_t utest_tc_init(void)
+{
+    return RT_EOK;
+}
+
+static rt_err_t utest_tc_cleanup(void)
+{
+    return RT_EOK;
+}
+
+static void testcase(void)
+{
+    UTEST_UNIT_RUN(test_atomic_api);
+    UTEST_UNIT_RUN(test_atomic_add);
+}
+UTEST_TC_EXPORT(testcase, "testcases.kernel.atomic_tc", utest_tc_init, utest_tc_cleanup, 10);

include/rtatomic.h

@@ -0,0 +1,195 @@
+/*
+ * Copyright (c) 2006-2023, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2023-03-14     WangShun     first version
+ */
+#ifndef __RT_ATOMIC_H__
+#define __RT_ATOMIC_H__
+
+rt_atomic_t rt_hw_atomic_load(volatile rt_atomic_t *ptr);
+void rt_hw_atomic_store(volatile rt_atomic_t *ptr, rt_atomic_t val);
+rt_atomic_t rt_hw_atomic_add(volatile rt_atomic_t *ptr, rt_atomic_t val);
+rt_atomic_t rt_hw_atomic_sub(volatile rt_atomic_t *ptr, rt_atomic_t val);
+rt_atomic_t rt_hw_atomic_and(volatile rt_atomic_t *ptr, rt_atomic_t val);
+rt_atomic_t rt_hw_atomic_or(volatile rt_atomic_t *ptr, rt_atomic_t val);
+rt_atomic_t rt_hw_atomic_xor(volatile rt_atomic_t *ptr, rt_atomic_t val);
+rt_atomic_t rt_hw_atomic_exchange(volatile rt_atomic_t *ptr, rt_atomic_t val);
+void rt_hw_atomic_flag_clear(volatile rt_atomic_t *ptr);
+rt_atomic_t rt_hw_atomic_flag_test_and_set(volatile rt_atomic_t *ptr);
+rt_atomic_t rt_hw_atomic_compare_exchange_strong(volatile rt_atomic_t *ptr, rt_atomic_t *old, rt_atomic_t new);
+
+#if defined(RT_USING_STDC_ATOMIC)
+#ifndef __STDC_NO_ATOMICS__
+#define rt_atomic_load(ptr) atomic_load(ptr)
+#define rt_atomic_store(ptr, v) atomic_store(ptr, v)
+#define rt_atomic_add(ptr, v) atomic_fetch_add(ptr, v)
+#define rt_atomic_sub(ptr, v) atomic_fetch_sub(ptr, v)
+#define rt_atomic_and(ptr, v) atomic_fetch_and(ptr, v)
+#define rt_atomic_or(ptr, v)  atomic_fetch_or(ptr, v)
+#define rt_atomic_xor(ptr, v) atomic_fetch_xor(ptr, v)
+#define rt_atomic_exchange(ptr, v) atomic_exchange(ptr, v)
+#define rt_atomic_flag_clear(ptr) atomic_flag_clear(ptr)
+#define rt_atomic_flag_test_and_set(ptr) atomic_flag_test_and_set(ptr)
+#define rt_atomic_compare_exchange_strong(ptr, v,des) atomic_compare_exchange_strong(ptr, v ,des)
+#else
+#error "The standard library C doesn't support the atomic operation"
+#endif /* __STDC_NO_ATOMICS__ */
+#elif defined(RT_USING_HW_ATOMIC)
+#define rt_atomic_load(ptr) rt_hw_atomic_load(ptr)
+#define rt_atomic_store(ptr, v) rt_hw_atomic_store(ptr, v)
+#define rt_atomic_add(ptr, v) rt_hw_atomic_add(ptr, v)
+#define rt_atomic_sub(ptr, v) rt_hw_atomic_sub(ptr, v)
+#define rt_atomic_and(ptr, v) rt_hw_atomic_and(ptr, v)
+#define rt_atomic_or(ptr, v)  rt_hw_atomic_or(ptr, v)
+#define rt_atomic_xor(ptr, v) rt_hw_atomic_xor(ptr, v)
+#define rt_atomic_exchange(ptr, v) rt_hw_atomic_exchange(ptr, v)
+#define rt_atomic_flag_clear(ptr) rt_hw_atomic_flag_clear(ptr)
+#define rt_atomic_flag_test_and_set(ptr) rt_hw_atomic_flag_test_and_set(ptr)
+#define rt_atomic_compare_exchange_strong(ptr, v,des) rt_hw_atomic_compare_exchange_strong(ptr, v ,des)
+#else
+#include <rthw.h>
+#define rt_atomic_load(ptr) rt_soft_atomic_load(ptr)
+#define rt_atomic_store(ptr, v) rt_soft_atomic_store(ptr, v)
+#define rt_atomic_add(ptr, v) rt_soft_atomic_add(ptr, v)
+#define rt_atomic_sub(ptr, v) rt_soft_atomic_sub(ptr, v)
+#define rt_atomic_and(ptr, v) rt_soft_atomic_and(ptr, v)
+#define rt_atomic_or(ptr, v)  rt_soft_atomic_or(ptr, v)
+#define rt_atomic_xor(ptr, v) rt_soft_atomic_xor(ptr, v)
+#define rt_atomic_exchange(ptr, v) rt_soft_atomic_exchange(ptr, v)
+#define rt_atomic_flag_clear(ptr) rt_soft_atomic_flag_clear(ptr)
+#define rt_atomic_flag_test_and_set(ptr) rt_soft_atomic_flag_test_and_set(ptr)
+#define rt_atomic_compare_exchange_strong(ptr, v,des) rt_soft_atomic_compare_exchange_strong(ptr, v ,des)
+
+rt_inline rt_atomic_t rt_soft_atomic_exchange(volatile rt_atomic_t *ptr, rt_atomic_t val)
+{
+    rt_base_t level;
+    rt_atomic_t temp;
+    level = rt_hw_interrupt_disable();
+    temp = *ptr;
+    *ptr = val;
+    rt_hw_interrupt_enable(level);
+    return temp;
+}
+
+rt_inline rt_atomic_t rt_soft_atomic_add(volatile rt_atomic_t *ptr, rt_atomic_t val)
+{
+    rt_base_t level;
+    rt_atomic_t temp;
+    level = rt_hw_interrupt_disable();
+    temp = *ptr;
+    *ptr += val;
+    rt_hw_interrupt_enable(level);
+    return temp;
+}
+
+rt_inline rt_atomic_t rt_soft_atomic_sub(volatile rt_atomic_t *ptr, rt_atomic_t val)
+{
+    rt_base_t level;
+    rt_atomic_t temp;
+    level = rt_hw_interrupt_disable();
+    temp = *ptr;
+    *ptr -= val;
+    rt_hw_interrupt_enable(level);
+    return temp;
+}
+
+rt_inline rt_atomic_t rt_soft_atomic_xor(volatile rt_atomic_t *ptr, rt_atomic_t val)
+{
+    rt_base_t level;
+    rt_atomic_t temp;
+    level = rt_hw_interrupt_disable();
+    temp = *ptr;
+    *ptr = (*ptr) ^ val;
+    rt_hw_interrupt_enable(level);
+    return temp;
+}
+
+rt_inline rt_atomic_t rt_soft_atomic_and(volatile rt_atomic_t *ptr, rt_atomic_t val)
+{
+    rt_base_t level;
+    rt_atomic_t temp;
+    level = rt_hw_interrupt_disable();
+    temp = *ptr;
+    *ptr = (*ptr) & val;
+    rt_hw_interrupt_enable(level);
+    return temp;
+}
+
+rt_inline rt_atomic_t rt_soft_atomic_or(volatile rt_atomic_t *ptr, rt_atomic_t val)
+{
+    rt_base_t level;
+    rt_atomic_t temp;
+    level = rt_hw_interrupt_disable();
+    temp = *ptr;
+    *ptr = (*ptr) | val;
+    rt_hw_interrupt_enable(level);
+    return temp;
+}
+
+rt_inline rt_atomic_t rt_soft_atomic_load(volatile rt_atomic_t *ptr)
+{
+    rt_base_t level;
+    rt_atomic_t temp;
+    level = rt_hw_interrupt_disable();
+    temp = *ptr;
+    rt_hw_interrupt_enable(level);
+    return temp;
+}
+
+rt_inline void rt_soft_atomic_store(volatile rt_atomic_t *ptr, rt_atomic_t val)
+{
+    rt_base_t level;
+    level = rt_hw_interrupt_disable();
+    *ptr = val;
+    rt_hw_interrupt_enable(level);
+}
+
+rt_inline rt_atomic_t rt_soft_atomic_flag_test_and_set(volatile rt_atomic_t *ptr)
+{
+    rt_base_t level;
+    rt_atomic_t temp;
+    level = rt_hw_interrupt_disable();
+    if (*ptr == 0)
+    {
+        temp = 0;
+        *ptr = 1;
+    }
+    else
+        temp = 1;
+    rt_hw_interrupt_enable(level);
+    return temp;
+}
+
+rt_inline void rt_soft_atomic_flag_clear(volatile rt_atomic_t *ptr)
+{
+    rt_base_t level;
+    level = rt_hw_interrupt_disable();
+    *ptr = 0;
+    rt_hw_interrupt_enable(level);
+}
+
+rt_inline rt_atomic_t rt_soft_atomic_compare_exchange_strong(volatile rt_atomic_t *ptr1, rt_atomic_t *ptr2,
+        rt_atomic_t desired)
+{
+    rt_base_t level;
+    rt_atomic_t temp;
+    level = rt_hw_interrupt_disable();
+    if ((*ptr1) != (*ptr2))
+    {
+        *ptr2 = *ptr1;
+        temp = 0;
+    }
+    else
+    {
+        *ptr1 = desired;
+        temp = 1;
+    }
+    rt_hw_interrupt_enable(level);
+    return temp;
+}
+#endif /* RT_USING_STDC_ATOMIC */
+#endif /* __RT_ATOMIC_H__ */

include/rtdef.h

@@ -125,6 +125,13 @@ typedef rt_base_t                       rt_flag_t;      /**< Type for flags */
 typedef rt_ubase_t                      rt_dev_t;       /**< Type for device */
 typedef rt_base_t                       rt_off_t;       /**< Type for offset */
 
+#if defined(RT_USING_STDC_ATOMIC)
+#include <stdatomic.h>
+typedef atomic_size_t rt_atomic_t;
+#else
+typedef volatile rt_base_t rt_atomic_t;
+#endif
+
 /* boolean type definitions */
 #define RT_TRUE                         1               /**< boolean true  */
 #define RT_FALSE                        0               /**< boolean fails */

libcpu/Kconfig

@@ -5,6 +5,10 @@ config RT_USING_CACHE
     bool
     default n
 
+config RT_USING_HW_ATOMIC
+    bool
+    default n
+
 config ARCH_CPU_BIG_ENDIAN
     bool
 
@@ -47,6 +51,7 @@ config ARCH_ARM_CORTEX_M3
     bool
     select ARCH_ARM_CORTEX_M
     select RT_USING_CPU_FFS
+    select RT_USING_HW_ATOMIC
 
 config ARCH_ARM_MPU
     bool
@@ -57,21 +62,25 @@ config ARCH_ARM_CORTEX_M4
     bool
     select ARCH_ARM_CORTEX_M
     select RT_USING_CPU_FFS
+    select RT_USING_HW_ATOMIC
 
 config ARCH_ARM_CORTEX_M7
     bool
     select ARCH_ARM_CORTEX_M
     select RT_USING_CPU_FFS
     select RT_USING_CACHE
+    select RT_USING_HW_ATOMIC
 
 config ARCH_ARM_CORTEX_M33
     bool
     select ARCH_ARM_CORTEX_M
     select RT_USING_CPU_FFS
+    select RT_USING_HW_ATOMIC
 
 config ARCH_ARM_CORTEX_R
     bool
     select ARCH_ARM
+    select RT_USING_HW_ATOMIC
 
 config ARCH_ARM_MMU
     bool
@@ -107,6 +116,7 @@ config ARCH_ARM_CORTEX_A
     select ARCH_ARM
     select ARCH_ARM_MMU
     select RT_USING_CPU_FFS
+    select RT_USING_HW_ATOMIC
 
     if ARCH_ARM_CORTEX_A
         config RT_SMP_AUTO_BOOT
@@ -156,6 +166,7 @@ config ARCH_ARMV8
     bool
     select ARCH_ARM
     select ARCH_ARM_MMU
+    select RT_USING_HW_ATOMIC
 
 config ARCH_MIPS
     bool

libcpu/arm/common/SConscript

@@ -18,6 +18,9 @@ if rtconfig.PLATFORM in ['gcc']:
 if rtconfig.PLATFORM in ['iccarm']:
     src += Glob('*_iar.S')
 
+if not GetDepend('RT_USING_HW_ATOMIC'):
+    SrcRemove(src, 'atomic_arm.c')
+
 group = DefineGroup('CPU', src, depend = [''], CPPPATH = CPPPATH)
 
 Return('group')

libcpu/arm/common/atomic_arm.c

@@ -0,0 +1,184 @@
+/*
+ * Copyright (c) 2006-2023, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2022-07-27     flybreak       the first version
+ */
+
+#include <rtthread.h>
+
+/**
+ \brief   LDR Exclusive (32 bit)
+ \details Executes a exclusive LDR instruction for 32 bit values.
+ \param [in]    ptr  Pointer to data
+ \return        value of type uint32_t at (*ptr)
+ */
+#if defined (__ARMCC_VERSION) && (__ARMCC_VERSION >= 6010050) /* ARM Compiler V6 */
+#define __LDREXW        (rt_atomic_t)__builtin_arm_ldrex
+#elif defined(__ARMCC_VERSION)          /* ARM Compiler V5 */
+#if __ARMCC_VERSION < 5060020
+#define __LDREXW(ptr)                                                        ((rt_atomic_t ) __ldrex(ptr))
+#else
+#define __LDREXW(ptr)          _Pragma("push") _Pragma("diag_suppress 3731") ((rt_atomic_t ) __ldrex(ptr))  _Pragma("pop")
+#endif
+#elif defined (__IAR_SYSTEMS_ICC__)     /* for IAR Compiler */
+_Pragma("inline=forced") __intrinsic rt_atomic_t __LDREXW(volatile rt_atomic_t volatile *ptr)
+{
+    return __LDREX((unsigned long *)ptr);
+}
+#elif defined (__GNUC__)                /* GNU GCC Compiler */
+__attribute__((always_inline))     static inline rt_atomic_t __LDREXW(volatile rt_atomic_t *addr)
+{
+    rt_atomic_t result;
+
+    __asm volatile ("ldrex %0, %1" : "=r" (result) : "Q" (*addr) );
+    return result;
+}
+#endif
+
+/**
+ \brief   STR Exclusive (32 bit)
+ \details Executes a exclusive STR instruction for 32 bit values.
+ \param [in]  value  Value to store
+ \param [in]    ptr  Pointer to location
+ \return          0  Function succeeded
+ \return          1  Function failed
+ */
+#if defined (__ARMCC_VERSION) && (__ARMCC_VERSION >= 6010050) /* ARM Compiler V6 */
+#define __STREXW        (rt_atomic_t)__builtin_arm_strex
+#elif defined(__ARMCC_VERSION)          /* ARM Compiler V5 */
+#if __ARMCC_VERSION < 5060020
+#define __STREXW(value, ptr)                                                 __strex(value, ptr)
+#else
+#define __STREXW(value, ptr)   _Pragma("push") _Pragma("diag_suppress 3731") __strex(value, ptr)        _Pragma("pop")
+#endif
+#elif defined (__IAR_SYSTEMS_ICC__)     /* for IAR Compiler */
+_Pragma("inline=forced") __intrinsic rt_atomic_t __STREXW(rt_atomic_t value, volatile rt_atomic_t *ptr)
+{
+    return __STREX(value, (unsigned long *)ptr);
+}
+#elif defined (__GNUC__)                /* GNU GCC Compiler */
+__attribute__((always_inline))     static inline rt_atomic_t __STREXW(volatile rt_atomic_t value, volatile rt_atomic_t *addr)
+{
+    rt_atomic_t result;
+
+    __asm volatile ("strex %0, %2, %1" : "=&r" (result), "=Q" (*addr) : "r" (value) );
+    return result;
+}
+#endif
+
+rt_atomic_t rt_hw_atomic_load(volatile rt_atomic_t *ptr)
+{
+    rt_atomic_t oldval;
+    do
+    {
+        oldval = __LDREXW(ptr);
+    } while ((__STREXW(oldval, ptr)) != 0U);
+    return *ptr;
+}
+
+void rt_hw_atomic_store(volatile rt_atomic_t *ptr, rt_atomic_t val)
+{
+    do
+    {
+        __LDREXW(ptr);
+    } while ((__STREXW(val, ptr)) != 0U);
+}
+
+rt_atomic_t rt_hw_atomic_add(volatile rt_atomic_t *ptr, rt_atomic_t val)
+{
+    rt_atomic_t oldval;
+    do
+    {
+        oldval = __LDREXW(ptr);
+    } while ((__STREXW(oldval + val, ptr)) != 0U);
+    return oldval;
+}
+
+rt_atomic_t rt_hw_atomic_sub(volatile rt_atomic_t *ptr, rt_atomic_t val)
+{
+    rt_atomic_t oldval;
+    do
+    {
+        oldval = __LDREXW(ptr);
+    } while ((__STREXW(oldval - val, ptr)) != 0U);
+    return oldval;
+}
+
+rt_atomic_t rt_hw_atomic_and(volatile rt_atomic_t *ptr, rt_atomic_t val)
+{
+    rt_atomic_t oldval;
+    do
+    {
+        oldval = __LDREXW(ptr);
+    } while ((__STREXW(oldval & val, ptr)) != 0U);
+    return oldval;
+}
+
+rt_atomic_t rt_hw_atomic_or(volatile rt_atomic_t *ptr, rt_atomic_t val)
+{
+    rt_atomic_t oldval;
+    do
+    {
+        oldval = __LDREXW(ptr);
+    } while ((__STREXW(oldval | val, ptr)) != 0U);
+    return oldval;
+}
+
+rt_atomic_t rt_hw_atomic_xor(volatile rt_atomic_t *ptr, rt_atomic_t val)
+{
+    rt_atomic_t oldval;
+    do
+    {
+        oldval = __LDREXW(ptr);
+    } while ((__STREXW(oldval ^ val, ptr)) != 0U);
+    return oldval;
+}
+
+rt_atomic_t rt_hw_atomic_exchange(volatile rt_atomic_t *ptr, rt_atomic_t val)
+{
+    rt_atomic_t oldval;
+    do
+    {
+        oldval = __LDREXW(ptr);
+    } while ((__STREXW(val, ptr)) != 0U);
+    return oldval;
+}
+
+void rt_hw_atomic_flag_clear(volatile rt_atomic_t *ptr)
+{
+    do
+    {
+        __LDREXW(ptr);
+    } while ((__STREXW(0, ptr)) != 0U);
+}
+
+rt_atomic_t rt_hw_atomic_flag_test_and_set(volatile rt_atomic_t *ptr)
+{
+    rt_atomic_t oldval;
+    do
+    {
+        oldval = __LDREXW(ptr);
+    } while ((__STREXW(1, ptr)) != 0U);
+    return oldval;
+}
+
+rt_atomic_t rt_hw_atomic_compare_exchange_strong(volatile rt_atomic_t *ptr, rt_atomic_t *old, rt_atomic_t new)
+{
+    rt_atomic_t result;
+    rt_atomic_t temp = *old;
+    do
+    {
+        result = __LDREXW(ptr);
+        if (result != temp)
+        {
+            *old = result;
+            __STREXW(result, ptr);
+            break;
+        }
+    } while ((__STREXW(new, ptr)) != 0U);
+    return (result == temp);
+}

libcpu/arm/common/showmem.c

@@ -10,7 +10,7 @@
 
 #include <rtthread.h>
 
-void rt_hw_show_memory(rt_uint32_t addr, rt_uint32_t size)
+void rt_hw_show_memory(rt_uint32_t addr, rt_size_t size)
 {
     unsigned int i = 0, j = 0;
 

libcpu/risc-v/common/SConscript

@@ -7,6 +7,9 @@ src     = Glob('*.c') + Glob('*.cpp') + Glob('*_gcc.S')
 CPPPATH = [cwd]
 ASFLAGS = ' -I ' + cwd
 
+if not GetDepend('RT_USING_HW_ATOMIC'):
+    SrcRemove(src, 'atomic_riscv.c')
+
 group = DefineGroup('CPU', src, depend = [''], CPPPATH = CPPPATH, ASFLAGS = ASFLAGS)
 
 Return('group')

libcpu/risc-v/common/atomic_riscv.c

@@ -0,0 +1,159 @@
+/*
+ * Copyright (c) 2006-2023, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2023-03-14     WangShun     first version
+ */
+
+#include <rtthread.h>
+
+rt_atomic_t rt_hw_atomic_exchange(volatile rt_atomic_t *ptr, rt_atomic_t val)
+{
+    rt_atomic_t result;
+#if __riscv_xlen == 32
+    asm volatile ("amoswap.w %0, %1, (%2)" : "=r"(result) : "r"(val), "r"(ptr) : "memory");
+#elif __riscv_xlen == 64
+    asm volatile ("amoswap.d %0, %1, (%2)" : "=r"(result) : "r"(val), "r"(ptr) : "memory");
+#endif
+    return result;
+}
+
+rt_atomic_t rt_hw_atomic_add(volatile rt_atomic_t *ptr, rt_atomic_t val)
+{
+    rt_atomic_t result;
+#if __riscv_xlen == 32
+    asm volatile ("amoadd.w %0, %1, (%2)" : "=r"(result) : "r"(val), "r"(ptr) : "memory");
+#elif __riscv_xlen == 64
+    asm volatile ("amoadd.d %0, %1, (%2)" : "=r"(result) : "r"(val), "r"(ptr) : "memory");
+#endif
+    return result;
+}
+
+rt_atomic_t rt_hw_atomic_sub(volatile rt_atomic_t *ptr, rt_atomic_t val)
+{
+    rt_atomic_t result;
+    val = -val;
+#if __riscv_xlen == 32
+    asm volatile ("amoadd.w %0, %1, (%2)" : "=r"(result) : "r"(val), "r"(ptr) : "memory");
+#elif __riscv_xlen == 64
+    asm volatile ("amoadd.d %0, %1, (%2)" : "=r"(result) : "r"(val), "r"(ptr) : "memory");
+#endif
+    return result;
+}
+
+rt_atomic_t rt_hw_atomic_xor(volatile rt_atomic_t *ptr, rt_atomic_t val)
+{
+    rt_atomic_t result;
+#if __riscv_xlen == 32
+    asm volatile ("amoxor.w %0, %1, (%2)" : "=r"(result) : "r"(val), "r"(ptr) : "memory");
+#elif __riscv_xlen == 64
+    asm volatile ("amoxor.d %0, %1, (%2)" : "=r"(result) : "r"(val), "r"(ptr) : "memory");
+#endif
+    return result;
+}
+
+rt_atomic_t rt_hw_atomic_and(volatile rt_atomic_t *ptr, rt_atomic_t val)
+{
+    rt_atomic_t result;
+#if __riscv_xlen == 32
+    asm volatile ("amoand.w %0, %1, (%2)" : "=r"(result) : "r"(val), "r"(ptr) : "memory");
+#elif __riscv_xlen == 64
+    asm volatile ("amoand.d %0, %1, (%2)" : "=r"(result) : "r"(val), "r"(ptr) : "memory");
+#endif
+    return result;
+}
+
+rt_atomic_t rt_hw_atomic_or(volatile rt_atomic_t *ptr, rt_atomic_t val)
+{
+    rt_atomic_t result;
+#if __riscv_xlen == 32
+    asm volatile ("amoor.w %0, %1, (%2)" : "=r"(result) : "r"(val), "r"(ptr) : "memory");
+#elif __riscv_xlen == 64
+    asm volatile ("amoor.d %0, %1, (%2)" : "=r"(result) : "r"(val), "r"(ptr) : "memory");
+#endif
+    return result;
+}
+
+rt_atomic_t rt_hw_atomic_load(volatile rt_atomic_t *ptr)
+{
+    rt_atomic_t result;
+#if __riscv_xlen == 32
+    asm volatile ("amoxor.w %0, x0, (%1)" : "=r"(result) : "r"(ptr) : "memory");
+#elif __riscv_xlen == 64
+    asm volatile ("amoxor.d %0, x0, (%1)" : "=r"(result) : "r"(ptr) : "memory");
+#endif
+    return result;
+}
+
+void rt_hw_atomic_store(volatile rt_atomic_t *ptr, rt_atomic_t val)
+{
+    rt_atomic_t result;
+#if __riscv_xlen == 32
+    asm volatile ("amoswap.w %0, %1, (%2)" : "=r"(result) : "r"(val), "r"(ptr) : "memory");
+#elif __riscv_xlen == 64
+    asm volatile ("amoswap.d %0, %1, (%2)" : "=r"(result) : "r"(val), "r"(ptr) : "memory");
+#endif
+}
+
+rt_atomic_t rt_hw_atomic_flag_test_and_set(volatile rt_atomic_t *ptr)
+{
+    rt_atomic_t result;
+    rt_atomic_t temp = 1;
+#if __riscv_xlen == 32
+    asm volatile ("amoor.w %0, %1, (%2)" : "=r"(result) : "r"(temp), "r"(ptr) : "memory");
+#elif __riscv_xlen == 64
+    asm volatile ("amoor.d %0, %1, (%2)" : "=r"(result) : "r"(temp), "r"(ptr) : "memory");
+#endif
+    return result;
+}
+
+void rt_hw_atomic_flag_clear(volatile rt_atomic_t *ptr)
+{
+    rt_atomic_t result;
+#if __riscv_xlen == 32
+    asm volatile ("amoand.w %0, x0, (%1)" : "=r"(result) :"r"(ptr) : "memory");
+#elif __riscv_xlen == 64
+    asm volatile ("amoand.d %0, x0, (%1)" : "=r"(result) :"r"(ptr) : "memory");
+#endif
+}
+
+rt_atomic_t rt_hw_atomic_compare_exchange_strong(volatile rt_atomic_t *ptr, rt_atomic_t *old, rt_atomic_t new)
+{
+    rt_atomic_t tmp = *old;
+    rt_atomic_t result;
+#if __riscv_xlen == 32
+    asm volatile(
+            " fence iorw, ow\n"
+            "1: lr.w.aq  %[result], (%[ptr])\n"
+            "   bne      %[result], %[tmp], 2f\n"
+            "   sc.w.rl  %[tmp], %[new], (%[ptr])\n"
+            "   bnez     %[tmp], 1b\n"
+            "   li  %[result], 1\n"
+            "   j 3f\n"
+            " 2:sw  %[result], (%[old])\n"
+            "   li  %[result], 0\n"
+            " 3:\n"
+            : [result]"+r" (result), [tmp]"+r" (tmp), [ptr]"+r" (ptr)
+            : [new]"r" (new), [old]"r"(old)
+            : "memory");
+#elif __riscv_xlen == 64
+    asm volatile(
+            " fence iorw, ow\n"
+            "1: lr.d.aq  %[result], (%[ptr])\n"
+            "   bne      %[result], %[tmp], 2f\n"
+            "   sc.d.rl  %[tmp], %[new], (%[ptr])\n"
+            "   bnez     %[tmp], 1b\n"
+            "   li  %[result], 1\n"
+            "   j 3f\n"
+            " 2:sd  %[result], (%[old])\n"
+            "   li  %[result], 0\n"
+            " 3:\n"
+            : [result]"+r" (result), [tmp]"+r" (tmp), [ptr]"+r" (ptr)
+            : [new]"r" (new), [old]"r"(old)
+            : "memory");
+#endif
+    return result;
+}

libcpu/risc-v/virt64/SConscript

@@ -6,6 +6,7 @@ Import('rtconfig')
 
 cwd     = GetCurrentDir()
 src     = Glob('*.c') + Glob('*.cpp') + Glob('*_gcc.S')
+src     = src + ['../common/atomic_riscv.c']
 CPPPATH = [cwd]
 ASFLAGS = ''
 

src/Kconfig

@@ -479,4 +479,8 @@ config RT_VER_NUM
     help
         RT-Thread version number
 
+config RT_USING_STDC_ATOMIC
+    bool "Use atomic implemented in stdatomic.h"
+    default n
+
 endmenu