Файловый менеджер - Редактировать - /usr/src/linux-headers-5.4.0-200/arch/riscv/include/asm/sbi.h
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/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2015 Regents of the University of California */ #ifndef _ASM_RISCV_SBI_H #define _ASM_RISCV_SBI_H #include <linux/types.h> #define SBI_SET_TIMER 0 #define SBI_CONSOLE_PUTCHAR 1 #define SBI_CONSOLE_GETCHAR 2 #define SBI_CLEAR_IPI 3 #define SBI_SEND_IPI 4 #define SBI_REMOTE_FENCE_I 5 #define SBI_REMOTE_SFENCE_VMA 6 #define SBI_REMOTE_SFENCE_VMA_ASID 7 #define SBI_SHUTDOWN 8 #define SBI_CALL(which, arg0, arg1, arg2, arg3) ({ \ register uintptr_t a0 asm ("a0") = (uintptr_t)(arg0); \ register uintptr_t a1 asm ("a1") = (uintptr_t)(arg1); \ register uintptr_t a2 asm ("a2") = (uintptr_t)(arg2); \ register uintptr_t a3 asm ("a3") = (uintptr_t)(arg3); \ register uintptr_t a7 asm ("a7") = (uintptr_t)(which); \ asm volatile ("ecall" \ : "+r" (a0) \ : "r" (a1), "r" (a2), "r" (a3), "r" (a7) \ : "memory"); \ a0; \ }) /* Lazy implementations until SBI is finalized */ #define SBI_CALL_0(which) SBI_CALL(which, 0, 0, 0, 0) #define SBI_CALL_1(which, arg0) SBI_CALL(which, arg0, 0, 0, 0) #define SBI_CALL_2(which, arg0, arg1) SBI_CALL(which, arg0, arg1, 0, 0) #define SBI_CALL_3(which, arg0, arg1, arg2) \ SBI_CALL(which, arg0, arg1, arg2, 0) #define SBI_CALL_4(which, arg0, arg1, arg2, arg3) \ SBI_CALL(which, arg0, arg1, arg2, arg3) static inline void sbi_console_putchar(int ch) { SBI_CALL_1(SBI_CONSOLE_PUTCHAR, ch); } static inline int sbi_console_getchar(void) { return SBI_CALL_0(SBI_CONSOLE_GETCHAR); } static inline void sbi_set_timer(uint64_t stime_value) { #if __riscv_xlen == 32 SBI_CALL_2(SBI_SET_TIMER, stime_value, stime_value >> 32); #else SBI_CALL_1(SBI_SET_TIMER, stime_value); #endif } static inline void sbi_shutdown(void) { SBI_CALL_0(SBI_SHUTDOWN); } static inline void sbi_clear_ipi(void) { SBI_CALL_0(SBI_CLEAR_IPI); } static inline void sbi_send_ipi(const unsigned long *hart_mask) { SBI_CALL_1(SBI_SEND_IPI, hart_mask); } static inline void sbi_remote_fence_i(const unsigned long *hart_mask) { SBI_CALL_1(SBI_REMOTE_FENCE_I, hart_mask); } static inline void sbi_remote_sfence_vma(const unsigned long *hart_mask, unsigned long start, unsigned long size) { SBI_CALL_3(SBI_REMOTE_SFENCE_VMA, hart_mask, start, size); } static inline void sbi_remote_sfence_vma_asid(const unsigned long *hart_mask, unsigned long start, unsigned long size, unsigned long asid) { SBI_CALL_4(SBI_REMOTE_SFENCE_VMA_ASID, hart_mask, start, size, asid); } #endif
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