mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-13 06:36:16 +09:00
5bde2152d4
Few v0.1 SBI calls are being replaced by new SBI calls that follows v0.2 calling convention. Implement the replacement extensions and few additional new SBI function calls that makes way for a better SBI interface in future. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Pragnesh Patel <pragnesh.patel@sifive.com>
124 lines
3.4 KiB
C
124 lines
3.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Copyright (C) 2015 Regents of the University of California
|
|
* Copyright (c) 2020 Western Digital Corporation or its affiliates.
|
|
*
|
|
* Taken from Linux arch/riscv/include/asm/sbi.h
|
|
*/
|
|
|
|
#ifndef _ASM_RISCV_SBI_H
|
|
#define _ASM_RISCV_SBI_H
|
|
|
|
#include <linux/types.h>
|
|
|
|
enum sbi_ext_id {
|
|
#ifdef CONFIG_SBI_V01
|
|
SBI_EXT_0_1_SET_TIMER = 0x0,
|
|
SBI_EXT_0_1_CONSOLE_PUTCHAR = 0x1,
|
|
SBI_EXT_0_1_CONSOLE_GETCHAR = 0x2,
|
|
SBI_EXT_0_1_CLEAR_IPI = 0x3,
|
|
SBI_EXT_0_1_SEND_IPI = 0x4,
|
|
SBI_EXT_0_1_REMOTE_FENCE_I = 0x5,
|
|
SBI_EXT_0_1_REMOTE_SFENCE_VMA = 0x6,
|
|
SBI_EXT_0_1_REMOTE_SFENCE_VMA_ASID = 0x7,
|
|
SBI_EXT_0_1_SHUTDOWN = 0x8,
|
|
#endif
|
|
SBI_EXT_BASE = 0x10,
|
|
SBI_EXT_TIME = 0x54494D45,
|
|
SBI_EXT_IPI = 0x735049,
|
|
SBI_EXT_RFENCE = 0x52464E43,
|
|
};
|
|
|
|
enum sbi_ext_base_fid {
|
|
SBI_EXT_BASE_GET_SPEC_VERSION = 0,
|
|
SBI_EXT_BASE_GET_IMP_ID,
|
|
SBI_EXT_BASE_GET_IMP_VERSION,
|
|
SBI_EXT_BASE_PROBE_EXT,
|
|
SBI_EXT_BASE_GET_MVENDORID,
|
|
SBI_EXT_BASE_GET_MARCHID,
|
|
SBI_EXT_BASE_GET_MIMPID,
|
|
};
|
|
|
|
enum sbi_ext_time_fid {
|
|
SBI_EXT_TIME_SET_TIMER = 0,
|
|
};
|
|
|
|
enum sbi_ext_ipi_fid {
|
|
SBI_EXT_IPI_SEND_IPI = 0,
|
|
};
|
|
|
|
enum sbi_ext_rfence_fid {
|
|
SBI_EXT_RFENCE_REMOTE_FENCE_I = 0,
|
|
SBI_EXT_RFENCE_REMOTE_SFENCE_VMA,
|
|
SBI_EXT_RFENCE_REMOTE_SFENCE_VMA_ASID,
|
|
};
|
|
|
|
#ifdef CONFIG_SBI_V01
|
|
#define SBI_EXT_SET_TIMER SBI_EXT_0_1_SET_TIMER
|
|
#define SBI_FID_SET_TIMER 0
|
|
#define SBI_EXT_SEND_IPI SBI_EXT_0_1_SEND_IPI
|
|
#define SBI_FID_SEND_IPI 0
|
|
#define SBI_EXT_REMOTE_FENCE_I SBI_EXT_0_1_REMOTE_FENCE_I
|
|
#define SBI_FID_REMOTE_FENCE_I 0
|
|
#define SBI_EXT_REMOTE_SFENCE_VMA SBI_EXT_0_1_REMOTE_SFENCE_VMA
|
|
#define SBI_FID_REMOTE_SFENCE_VMA 0
|
|
#define SBI_EXT_REMOTE_SFENCE_VMA_ASID SBI_EXT_0_1_REMOTE_SFENCE_VMA_ASID
|
|
#define SBI_FID_REMOTE_SFENCE_VMA_ASID 0
|
|
#else
|
|
#define SBI_EXT_SET_TIMER SBI_EXT_TIME
|
|
#define SBI_FID_SET_TIMER SBI_EXT_TIME_SET_TIMER
|
|
#define SBI_EXT_SEND_IPI SBI_EXT_IPI
|
|
#define SBI_FID_SEND_IPI SBI_EXT_IPI_SEND_IPI
|
|
#define SBI_EXT_REMOTE_FENCE_I SBI_EXT_RFENCE
|
|
#define SBI_FID_REMOTE_FENCE_I SBI_EXT_RFENCE_REMOTE_FENCE_I
|
|
#define SBI_EXT_REMOTE_SFENCE_VMA SBI_EXT_RFENCE
|
|
#define SBI_FID_REMOTE_SFENCE_VMA SBI_EXT_RFENCE_REMOTE_SFENCE_VMA
|
|
#define SBI_EXT_REMOTE_SFENCE_VMA_ASID SBI_EXT_RFENCE
|
|
#define SBI_FID_REMOTE_SFENCE_VMA_ASID SBI_EXT_RFENCE_REMOTE_SFENCE_VMA_ASID
|
|
#endif
|
|
|
|
#define SBI_SPEC_VERSION_DEFAULT 0x1
|
|
#define SBI_SPEC_VERSION_MAJOR_SHIFT 24
|
|
#define SBI_SPEC_VERSION_MAJOR_MASK 0x7f
|
|
#define SBI_SPEC_VERSION_MINOR_MASK 0xffffff
|
|
|
|
/* SBI return error codes */
|
|
#define SBI_SUCCESS 0
|
|
#define SBI_ERR_FAILURE -1
|
|
#define SBI_ERR_NOT_SUPPORTED -2
|
|
#define SBI_ERR_INVALID_PARAM -3
|
|
#define SBI_ERR_DENIED -4
|
|
#define SBI_ERR_INVALID_ADDRESS -5
|
|
|
|
extern unsigned long sbi_spec_version;
|
|
struct sbiret {
|
|
long error;
|
|
long value;
|
|
};
|
|
|
|
struct sbiret sbi_ecall(int ext, int fid, unsigned long arg0,
|
|
unsigned long arg1, unsigned long arg2,
|
|
unsigned long arg3, unsigned long arg4,
|
|
unsigned long arg5);
|
|
|
|
#ifdef CONFIG_SBI_V01
|
|
void sbi_console_putchar(int ch);
|
|
int sbi_console_getchar(void);
|
|
void sbi_clear_ipi(void);
|
|
void sbi_shutdown(void);
|
|
#endif
|
|
void sbi_set_timer(uint64_t stime_value);
|
|
void sbi_send_ipi(const unsigned long *hart_mask);
|
|
void sbi_remote_fence_i(const unsigned long *hart_mask);
|
|
void sbi_remote_sfence_vma(const unsigned long *hart_mask,
|
|
unsigned long start,
|
|
unsigned long size);
|
|
void sbi_remote_sfence_vma_asid(const unsigned long *hart_mask,
|
|
unsigned long start,
|
|
unsigned long size,
|
|
unsigned long asid);
|
|
|
|
int sbi_probe_extension(int ext);
|
|
|
|
#endif
|