/* * Copyright (C) 2015 Regents of the University of California * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation, version 2. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #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) ({ \ 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 a7 asm ("a7") = (uintptr_t)(which); \ asm volatile ("ecall" \ : "+r" (a0) \ : "r" (a1), "r" (a2), "r" (a7) \ : "memory"); \ a0; \ }) /* Lazy implementations until SBI is finalized */ #define SBI_CALL_0(which) SBI_CALL(which, 0, 0, 0) #define SBI_CALL_1(which, arg0) SBI_CALL(which, arg0, 0, 0) #define SBI_CALL_2(which, arg0, arg1) SBI_CALL(which, arg0, arg1, 0) 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_1(SBI_REMOTE_SFENCE_VMA, hart_mask); } static inline void sbi_remote_sfence_vma_asid(const unsigned long *hart_mask, unsigned long start, unsigned long size, unsigned long asid) { SBI_CALL_1(SBI_REMOTE_SFENCE_VMA_ASID, hart_mask); } #endif
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Kbuild | File | 1.37 KB | 0644 |
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asm-offsets.h | File | 35 B | 0644 |
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asm-prototypes.h | File | 176 B | 0644 |
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asm.h | File | 1.78 KB | 0644 |
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atomic.h | File | 11.31 KB | 0644 |
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barrier.h | File | 2.59 KB | 0644 |
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bitops.h | File | 6.23 KB | 0644 |
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bug.h | File | 2.12 KB | 0644 |
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cache.h | File | 745 B | 0644 |
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cacheflush.h | File | 1.7 KB | 0644 |
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cmpxchg.h | File | 3.35 KB | 0644 |
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compat.h | File | 924 B | 0644 |
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csr.h | File | 3.8 KB | 0644 |
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current.h | File | 1.27 KB | 0644 |
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delay.h | File | 881 B | 0644 |
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dma-mapping.h | File | 1.19 KB | 0644 |
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elf.h | File | 2.3 KB | 0644 |
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fence.h | File | 279 B | 0644 |
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hwcap.h | File | 1013 B | 0644 |
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io.h | File | 11.81 KB | 0644 |
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irq.h | File | 841 B | 0644 |
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irqflags.h | File | 1.54 KB | 0644 |
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kprobes.h | File | 679 B | 0644 |
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linkage.h | File | 677 B | 0644 |
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mmu.h | File | 829 B | 0644 |
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mmu_context.h | File | 3.14 KB | 0644 |
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page.h | File | 3.76 KB | 0644 |
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pci.h | File | 1.16 KB | 0644 |
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pgalloc.h | File | 3.06 KB | 0644 |
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pgtable-32.h | File | 870 B | 0644 |
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pgtable-64.h | File | 2.08 KB | 0644 |
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pgtable-bits.h | File | 1.81 KB | 0644 |
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pgtable.h | File | 11.17 KB | 0644 |
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processor.h | File | 2.44 KB | 0644 |
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ptrace.h | File | 2.69 KB | 0644 |
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sbi.h | File | 2.6 KB | 0644 |
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smp.h | File | 1.59 KB | 0644 |
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spinlock.h | File | 2.85 KB | 0644 |
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spinlock_types.h | File | 906 B | 0644 |
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string.h | File | 838 B | 0644 |
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switch_to.h | File | 1.86 KB | 0644 |
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syscall.h | File | 2.59 KB | 0644 |
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thread_info.h | File | 3.11 KB | 0644 |
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timex.h | File | 1.29 KB | 0644 |
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tlb.h | File | 717 B | 0644 |
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tlbflush.h | File | 1.83 KB | 0644 |
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uaccess.h | File | 14 KB | 0644 |
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unistd.h | File | 638 B | 0644 |
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vdso.h | File | 1.49 KB | 0644 |
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word-at-a-time.h | File | 1.48 KB | 0644 |
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