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riscv/esp32c3: Add standard C atomic function

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Dong Heng 2021-03-24 11:57:37 +08:00 committed by Alan Carvalho de Assis
parent 7c80826c21
commit c55085c0d8
3 changed files with 292 additions and 0 deletions
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4
arch/risc-v/src/esp32c3/Kconfig
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@ -156,6 +156,10 @@ config ESP32C3_RT_TIMER
bool "Real-time Timer" bool "Real-time Timer"
default n default n
config ESP32C3_DISABLE_STDC_ATOMIC
bool "Disable standard C atomic"
default n
menu "ESP32-C3 Peripheral Support" menu "ESP32-C3 Peripheral Support"
config ESP32C3_UART config ESP32C3_UART

4
arch/risc-v/src/esp32c3/Make.defs
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@ -81,6 +81,10 @@ ifeq ($(CONFIG_ESP32C3_RT_TIMER),y)
CHIP_CSRCS += esp32c3_rt_timer.c CHIP_CSRCS += esp32c3_rt_timer.c
endif endif
ifeq ($(CONFIG_ESP32C3_DISABLE_STDC_ATOMIC),)
CHIP_CSRCS += esp32c3_std_atomic.c
endif
ifeq ($(CONFIG_ESP32C3_WIRELESS),y) ifeq ($(CONFIG_ESP32C3_WIRELESS),y)
WIRELESS_DRV_UNPACK = esp-wireless-drivers-3rdparty WIRELESS_DRV_UNPACK = esp-wireless-drivers-3rdparty
WIRELESS_DRV_ID = 3cc7f67 WIRELESS_DRV_ID = 3cc7f67

284
arch/risc-v/src/esp32c3/esp32c3_std_atomic.c Normal file
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@ -0,0 +1,284 @@
/****************************************************************************
* arch/risc-v/src/esp32c3/esp32c3_std_atomic.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdbool.h>
#include <stdint.h>
#include <nuttx/arch.h>
#include <nuttx/irq.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define CMP_EXCHANGE(n, type) \
\
bool __atomic_compare_exchange_ ## n (type *mem, \
type *expect, \
type desired, \
int success, \
int failure) \
{ \
bool ret = false; \
irqstate_t irqstate = spin_lock_irqsave(NULL); \
\
if (*mem == *expect) \
{ \
ret = true; \
*mem = desired; \
} \
else \
{ \
*expect = *mem; \
} \
\
spin_unlock_irqrestore(NULL, irqstate); \
return ret; \
}
#define FETCH_ADD(n, type) \
\
type __atomic_fetch_add_ ## n (type *ptr, \
type value, \
int memorder) \
{ \
irqstate_t irqstate = spin_lock_irqsave(NULL); \
type ret = *ptr; \
\
*ptr = *ptr + value; \
\
spin_unlock_irqrestore(NULL, irqstate); \
return ret; \
}
#define FETCH_SUB(n, type) \
\
type __atomic_fetch_sub_ ## n (type *ptr, \
type value, \
int memorder) \
{ \
irqstate_t irqstate = spin_lock_irqsave(NULL); \
type ret = *ptr; \
\
*ptr = *ptr - value; \
\
spin_unlock_irqrestore(NULL, irqstate); \
return ret; \
}
#define FETCH_AND(n, type) \
\
type __atomic_fetch_and_ ## n (type *ptr, \
type value, \
int memorder) \
{ \
irqstate_t irqstate = spin_lock_irqsave(NULL); \
type ret = *ptr; \
\
*ptr = *ptr & value; \
\
spin_unlock_irqrestore(NULL, irqstate); \
return ret; \
}
#define FETCH_OR(n, type) \
\
type __atomic_fetch_or_ ## n (type *ptr, \
type value, \
int memorder) \
{ \
irqstate_t irqstate = spin_lock_irqsave(NULL); \
type ret = *ptr; \
\
*ptr = *ptr | value; \
\
spin_unlock_irqrestore(NULL, irqstate); \
return ret; \
}
#define FETCH_XOR(n, type) \
\
type __atomic_fetch_xor_ ## n (type *ptr, \
type value, \
int memorder) \
{ \
irqstate_t irqstate = spin_lock_irqsave(NULL); \
type ret = *ptr; \
\
*ptr = *ptr ^ value; \
\
spin_unlock_irqrestore(NULL, irqstate); \
return ret; \
}
#pragma GCC diagnostic ignored "-Wbuiltin-declaration-mismatch"
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: __atomic_compare_exchange_1
****************************************************************************/
CMP_EXCHANGE(1, uint8_t)
/****************************************************************************
* Name: __atomic_compare_exchange_2
****************************************************************************/
CMP_EXCHANGE(2, uint16_t)
/****************************************************************************
* Name: __atomic_compare_exchange_4
****************************************************************************/
CMP_EXCHANGE(4, uint32_t)
/****************************************************************************
* Name: __atomic_compare_exchange_8
****************************************************************************/
CMP_EXCHANGE(8, uint64_t)
/****************************************************************************
* Name: __atomic_fetch_add_1
****************************************************************************/
FETCH_ADD(1, uint8_t)
/****************************************************************************
* Name: __atomic_fetch_add_2
****************************************************************************/
FETCH_ADD(2, uint16_t)
/****************************************************************************
* Name: __atomic_fetch_add_4
****************************************************************************/
FETCH_ADD(4, uint32_t)
/****************************************************************************
* Name: __atomic_fetch_add_8
****************************************************************************/
FETCH_ADD(8, uint64_t)
/****************************************************************************
* Name: __atomic_fetch_sub_1
****************************************************************************/
FETCH_SUB(1, uint8_t)
/****************************************************************************
* Name: __atomic_fetch_sub_2
****************************************************************************/
FETCH_SUB(2, uint16_t)
/****************************************************************************
* Name: __atomic_fetch_sub_4
****************************************************************************/
FETCH_SUB(4, uint32_t)
/****************************************************************************
* Name: __atomic_fetch_sub_8
****************************************************************************/
FETCH_SUB(8, uint64_t)
/****************************************************************************
* Name: __atomic_fetch_and_1
****************************************************************************/
FETCH_AND(1, uint8_t)
/****************************************************************************
* Name: __atomic_fetch_and_2
****************************************************************************/
FETCH_AND(2, uint16_t)
/****************************************************************************
* Name: __atomic_fetch_and_4
****************************************************************************/
FETCH_AND(4, uint32_t)
/****************************************************************************
* Name: __atomic_fetch_and_8
****************************************************************************/
FETCH_AND(8, uint64_t)
/****************************************************************************
* Name: __atomic_fetch_or_1
****************************************************************************/
FETCH_OR(1, uint8_t)
/****************************************************************************
* Name: __atomic_fetch_or_2
****************************************************************************/
FETCH_OR(2, uint16_t)
/****************************************************************************
* Name: __atomic_fetch_or_4
****************************************************************************/
FETCH_OR(4, uint32_t)
/****************************************************************************
* Name: __atomic_fetch_or_4
****************************************************************************/
FETCH_OR(8, uint64_t)
/****************************************************************************
* Name: __atomic_fetch_xor_1
****************************************************************************/
FETCH_XOR(1, uint8_t)
/****************************************************************************
* Name: __atomic_fetch_xor_2
****************************************************************************/
FETCH_XOR(2, uint16_t)
/****************************************************************************
* Name: __atomic_fetch_xor_4
****************************************************************************/
FETCH_XOR(4, uint32_t)
/****************************************************************************
* Name: __atomic_fetch_xor_8
****************************************************************************/
FETCH_XOR(8, uint64_t)