/* * Copyright (c) 2006-2021, RT-Thread Development Team * * SPDX-License-Identifier: Apache-2.0 * * Change Logs: * Date Author Notes * 2018-10-03 Bernard The first version * 2020/11/20 BalanceTWK Add FPU support */ #ifndef CPUPORT_H__ #define CPUPORT_H__ #include #ifndef __ASSEMBLY__ #ifdef RT_USING_SMP typedef union { unsigned long slock; struct __arch_tickets { unsigned short owner; unsigned short next; } tickets; } rt_hw_spinlock_t; #endif #endif /* bytes of register width */ #ifdef ARCH_CPU_64BIT #define STORE sd #define LOAD ld #define REGBYTES 8 #else #define STORE sw #define LOAD lw #define REGBYTES 4 #endif #ifdef ARCH_RISCV_FPU #ifdef ARCH_RISCV_FPU_D #define FSTORE fsd #define FLOAD fld #define FREGBYTES 8 #define rv_floatreg_t rt_int64_t #endif #ifdef ARCH_RISCV_FPU_S #define FSTORE fsw #define FLOAD flw #define FREGBYTES 4 #define rv_floatreg_t rt_int32_t #endif #endif #endif