/* * FreeRTOS Kernel V10.2.1 * Copyright (C) 2019 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 * * 1 tab == 4 spaces! */ /* * The FreeRTOS kernel's RISC-V port is split between the the code that is * common across all currently supported RISC-V chips (implementations of the * RISC-V ISA), and code that tailors the port to a specific RISC-V chip: * * + FreeRTOS\Source\portable\GCC\RISC-V-RV32\portASM.S contains the code that * is common to all currently supported RISC-V chips. There is only one * portASM.S file because the same file is built for all RISC-V target chips. * * + Header files called freertos_risc_v_chip_specific_extensions.h contain the * code that tailors the FreeRTOS kernel's RISC-V port to a specific RISC-V * chip. There are multiple freertos_risc_v_chip_specific_extensions.h files * as there are multiple RISC-V chip implementations. * * !!!NOTE!!! * TAKE CARE TO INCLUDE THE CORRECT freertos_risc_v_chip_specific_extensions.h * HEADER FILE FOR THE CHIP IN USE. This is done using the assembler's (not the * compiler's!) include path. For example, if the chip in use includes a core * local interrupter (CLINT) and does not include any chip specific register * extensions then add the path below to the assembler's include path: * FreeRTOS\Source\portable\GCC\RISC-V-RV32\chip_specific_extensions\RV32I_CLINT_no_extensions * */ #ifndef __FREERTOS_RISC_V_EXTENSIONS_H__ #define __FREERTOS_RISC_V_EXTENSIONS_H__ #define portasmHAS_MTIME 1 #define portasmADDITIONAL_CONTEXT_SIZE 0 /* Must be even number on 32-bit cores. */ portasmSAVE_ADDITIONAL_REGISTERS MACRO /* No additional registers to save, so this macro does nothing. */ ENDM /* Restore the additional registers found on the Pulpino. */ portasmRESTORE_ADDITIONAL_REGISTERS MACRO /* No additional registers to restore, so this macro does nothing. */ ENDM #endif /* __FREERTOS_RISC_V_EXTENSIONS_H__ */