123 lines
3.4 KiB
C
123 lines
3.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2015 Regents of the University of California
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* Copyright (c) 2020 Western Digital Corporation or its affiliates.
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*
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* Taken from Linux arch/riscv/include/asm/sbi.h
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*/
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#ifndef _ASM_RISCV_SBI_H
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#define _ASM_RISCV_SBI_H
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#include <linux/types.h>
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enum sbi_ext_id {
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#ifdef CONFIG_SBI_V01
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SBI_EXT_0_1_SET_TIMER = 0x0,
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SBI_EXT_0_1_CONSOLE_PUTCHAR = 0x1,
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SBI_EXT_0_1_CONSOLE_GETCHAR = 0x2,
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SBI_EXT_0_1_CLEAR_IPI = 0x3,
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SBI_EXT_0_1_SEND_IPI = 0x4,
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SBI_EXT_0_1_REMOTE_FENCE_I = 0x5,
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SBI_EXT_0_1_REMOTE_SFENCE_VMA = 0x6,
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SBI_EXT_0_1_REMOTE_SFENCE_VMA_ASID = 0x7,
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SBI_EXT_0_1_SHUTDOWN = 0x8,
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#endif
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SBI_EXT_BASE = 0x10,
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SBI_EXT_TIME = 0x54494D45,
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SBI_EXT_IPI = 0x735049,
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SBI_EXT_RFENCE = 0x52464E43,
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};
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enum sbi_ext_base_fid {
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SBI_EXT_BASE_GET_SPEC_VERSION = 0,
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SBI_EXT_BASE_GET_IMP_ID,
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SBI_EXT_BASE_GET_IMP_VERSION,
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SBI_EXT_BASE_PROBE_EXT,
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SBI_EXT_BASE_GET_MVENDORID,
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SBI_EXT_BASE_GET_MARCHID,
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SBI_EXT_BASE_GET_MIMPID,
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};
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enum sbi_ext_time_fid {
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SBI_EXT_TIME_SET_TIMER = 0,
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};
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enum sbi_ext_ipi_fid {
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SBI_EXT_IPI_SEND_IPI = 0,
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};
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enum sbi_ext_rfence_fid {
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SBI_EXT_RFENCE_REMOTE_FENCE_I = 0,
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SBI_EXT_RFENCE_REMOTE_SFENCE_VMA,
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SBI_EXT_RFENCE_REMOTE_SFENCE_VMA_ASID,
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};
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#ifdef CONFIG_SBI_V01
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#define SBI_EXT_SET_TIMER SBI_EXT_0_1_SET_TIMER
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#define SBI_FID_SET_TIMER 0
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#define SBI_EXT_SEND_IPI SBI_EXT_0_1_SEND_IPI
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#define SBI_FID_SEND_IPI 0
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#define SBI_EXT_REMOTE_FENCE_I SBI_EXT_0_1_REMOTE_FENCE_I
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#define SBI_FID_REMOTE_FENCE_I 0
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#define SBI_EXT_REMOTE_SFENCE_VMA SBI_EXT_0_1_REMOTE_SFENCE_VMA
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#define SBI_FID_REMOTE_SFENCE_VMA 0
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#define SBI_EXT_REMOTE_SFENCE_VMA_ASID SBI_EXT_0_1_REMOTE_SFENCE_VMA_ASID
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#define SBI_FID_REMOTE_SFENCE_VMA_ASID 0
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#else
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#define SBI_EXT_SET_TIMER SBI_EXT_TIME
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#define SBI_FID_SET_TIMER SBI_EXT_TIME_SET_TIMER
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#define SBI_EXT_SEND_IPI SBI_EXT_IPI
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#define SBI_FID_SEND_IPI SBI_EXT_IPI_SEND_IPI
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#define SBI_EXT_REMOTE_FENCE_I SBI_EXT_RFENCE
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#define SBI_FID_REMOTE_FENCE_I SBI_EXT_RFENCE_REMOTE_FENCE_I
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#define SBI_EXT_REMOTE_SFENCE_VMA SBI_EXT_RFENCE
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#define SBI_FID_REMOTE_SFENCE_VMA SBI_EXT_RFENCE_REMOTE_SFENCE_VMA
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#define SBI_EXT_REMOTE_SFENCE_VMA_ASID SBI_EXT_RFENCE
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#define SBI_FID_REMOTE_SFENCE_VMA_ASID SBI_EXT_RFENCE_REMOTE_SFENCE_VMA_ASID
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#endif
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#define SBI_SPEC_VERSION_MAJOR_SHIFT 24
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#define SBI_SPEC_VERSION_MAJOR_MASK 0x7f
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#define SBI_SPEC_VERSION_MINOR_MASK 0xffffff
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/* SBI return error codes */
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#define SBI_SUCCESS 0
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#define SBI_ERR_FAILURE -1
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#define SBI_ERR_NOT_SUPPORTED -2
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#define SBI_ERR_INVALID_PARAM -3
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#define SBI_ERR_DENIED -4
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#define SBI_ERR_INVALID_ADDRESS -5
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struct sbiret {
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long error;
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long value;
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};
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struct sbiret sbi_ecall(int ext, int fid, unsigned long arg0,
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unsigned long arg1, unsigned long arg2,
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unsigned long arg3, unsigned long arg4,
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unsigned long arg5);
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#ifdef CONFIG_SBI_V01
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void sbi_console_putchar(int ch);
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int sbi_console_getchar(void);
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void sbi_clear_ipi(void);
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void sbi_shutdown(void);
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void sbi_send_ipi(const unsigned long *hart_mask);
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void sbi_remote_fence_i(const unsigned long *hart_mask);
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void sbi_remote_sfence_vma(const unsigned long *hart_mask,
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unsigned long start,
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unsigned long size);
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void sbi_remote_sfence_vma_asid(const unsigned long *hart_mask,
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unsigned long start,
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unsigned long size,
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unsigned long asid);
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#endif
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void sbi_set_timer(uint64_t stime_value);
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long sbi_get_spec_version(void);
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int sbi_get_impl_id(void);
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int sbi_probe_extension(int ext);
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#endif
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