/* * FreeRTOS Kernel V10.3.1 * Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a copy of * this software and associated documentation files (the "Software"), to deal in * the Software without restriction, including without limitation the rights to * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of * the Software, and to permit persons to whom the Software is furnished to do so, * subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all * copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * * http://www.FreeRTOS.org * http://aws.amazon.com/freertos * */ #ifndef PORTMACRO_H #define PORTMACRO_H #ifdef __cplusplus extern "C" { #endif /*----------------------------------------------------------- * Port specific definitions. * * The settings in this file configure FreeRTOS correctly for the * given hardware and compiler. * * These settings should not be altered. *----------------------------------------------------------- */ /* Type definitions. */ #if __riscv_xlen == 64 #define portSTACK_TYPE uint64_t #define portBASE_TYPE int64_t #define portUBASE_TYPE uint64_t #define portMAX_DELAY ( TickType_t ) 0xffffffffffffffffUL #define portPOINTER_SIZE_TYPE uint64_t #elif __riscv_xlen == 32 #define portSTACK_TYPE uint32_t #define portBASE_TYPE int32_t #define portUBASE_TYPE uint32_t #define portMAX_DELAY ( TickType_t ) 0xffffffffUL #else /* if __riscv_xlen == 64 */ #error Assembler did not define __riscv_xlen #endif /* if __riscv_xlen == 64 */ typedef portSTACK_TYPE StackType_t; typedef portBASE_TYPE BaseType_t; typedef portUBASE_TYPE UBaseType_t; typedef portUBASE_TYPE TickType_t; /* Legacy type definitions. */ #define portCHAR char #define portFLOAT float #define portDOUBLE double #define portLONG long #define portSHORT short /* 32-bit tick type on a 32-bit architecture, so reads of the tick count do * not need to be guarded with a critical section. */ #define portTICK_TYPE_IS_ATOMIC 1 /*-----------------------------------------------------------*/ /* Architecture specifics. */ #define portSTACK_GROWTH ( -1 ) #define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ ) #ifdef __riscv64 #error This is the RV32 port that has not yet been adapted for 64. #define portBYTE_ALIGNMENT 16 #else #define portBYTE_ALIGNMENT 16 #endif /*-----------------------------------------------------------*/ /* Scheduler utilities. */ extern void vTaskSwitchContext( void ); #define portYIELD() __asm volatile ( "ecall" ); #define portEND_SWITCHING_ISR( xSwitchRequired ) if( xSwitchRequired ) vTaskSwitchContext() #define portYIELD_FROM_ISR( x ) portEND_SWITCHING_ISR( x ) /*-----------------------------------------------------------*/ /* Critical section management. */ #define portCRITICAL_NESTING_IN_TCB 1 extern void vTaskEnterCritical( void ); extern void vTaskExitCritical( void ); #define portSET_INTERRUPT_MASK_FROM_ISR() 0 #define portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedStatusValue ) ( void ) uxSavedStatusValue #define portDISABLE_INTERRUPTS() __asm volatile ( "csrc mstatus, 8" ) #define portENABLE_INTERRUPTS() __asm volatile ( "csrs mstatus, 8" ) #define portENTER_CRITICAL() vTaskEnterCritical() #define portEXIT_CRITICAL() vTaskExitCritical() /*-----------------------------------------------------------*/ /* Architecture specific optimisations. */ #ifndef configUSE_PORT_OPTIMISED_TASK_SELECTION #define configUSE_PORT_OPTIMISED_TASK_SELECTION 1 #endif #if ( configUSE_PORT_OPTIMISED_TASK_SELECTION == 1 ) /* Check the configuration. */ #if ( configMAX_PRIORITIES > 32 ) #error configUSE_PORT_OPTIMISED_TASK_SELECTION can only be set to 1 when configMAX_PRIORITIES is less than or equal to 32. It is very rare that a system requires more than 10 to 15 difference priorities as tasks that share a priority will time slice. #endif /* Store/clear the ready priorities in a bit map. */ #define portRECORD_READY_PRIORITY( uxPriority, uxReadyPriorities ) ( uxReadyPriorities ) |= ( 1UL << ( uxPriority ) ) #define portRESET_READY_PRIORITY( uxPriority, uxReadyPriorities ) ( uxReadyPriorities ) &= ~( 1UL << ( uxPriority ) ) /*-----------------------------------------------------------*/ #define portGET_HIGHEST_PRIORITY( uxTopPriority, uxReadyPriorities ) uxTopPriority = ( 31UL - __builtin_clz( uxReadyPriorities ) ) #endif /* configUSE_PORT_OPTIMISED_TASK_SELECTION */ /*-----------------------------------------------------------*/ /* Task function macros as described on the FreeRTOS.org WEB site. These are * not necessary for to use this port. They are defined so the common demo files * (which build with all the ports) will build. */ #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void * pvParameters ) #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void * pvParameters ) /*-----------------------------------------------------------*/ #define portNOP() __asm volatile ( " nop " ) #define portINLINE __inline #ifndef portFORCE_INLINE #define portFORCE_INLINE inline __attribute__( ( always_inline ) ) #endif #define portMEMORY_BARRIER() __asm volatile ( "" ::: "memory" ) /*-----------------------------------------------------------*/ /* configCLINT_BASE_ADDRESS is a legacy definition that was replaced by the * configMTIME_BASE_ADDRESS and configMTIMECMP_BASE_ADDRESS definitions. For * backward compatibility derive the newer definitions from the old if the old * definition is found. */ #if defined( configCLINT_BASE_ADDRESS ) && !defined( configMTIME_BASE_ADDRESS ) && ( configCLINT_BASE_ADDRESS == 0 ) /* Legacy case where configCLINT_BASE_ADDRESS was defined as 0 to indicate * there was no CLINT. Equivalent now is to set the MTIME and MTIMECMP * addresses to 0. */ #define configMTIME_BASE_ADDRESS ( 0 ) #define configMTIMECMP_BASE_ADDRESS ( 0 ) #elif defined( configCLINT_BASE_ADDRESS ) && !defined( configMTIME_BASE_ADDRESS ) /* Legacy case where configCLINT_BASE_ADDRESS was set to the base address of * the CLINT. Equivalent now is to derive the MTIME and MTIMECMP addresses * from the CLINT address. */ #define configMTIME_BASE_ADDRESS ( ( configCLINT_BASE_ADDRESS ) + 0xBFF8UL ) #define configMTIMECMP_BASE_ADDRESS ( ( configCLINT_BASE_ADDRESS ) + 0x4000UL ) #elif !defined( configMTIME_BASE_ADDRESS ) || !defined( configMTIMECMP_BASE_ADDRESS ) #error configMTIME_BASE_ADDRESS and configMTIMECMP_BASE_ADDRESS must be defined in FreeRTOSConfig.h. Set them to zero if there is no MTIME (machine time) clock. See https: /*www.freertos.org/Using-FreeRTOS-on-RISC-V.html */ #endif /* if defined( configCLINT_BASE_ADDRESS ) && !defined( configMTIME_BASE_ADDRESS ) && ( configCLINT_BASE_ADDRESS == 0 ) */ #ifdef __cplusplus } #endif #endif /* PORTMACRO_H */