cpuport.h
1.19 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
/*
* 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
*/
#ifndef CPUPORT_H__
#define CPUPORT_H__
#include <rtconfig.h>
/* bytes of register width */
#ifdef ARCH_CPU_64BIT
#define STORE sd
#define LOAD ld
#define REGBYTES 8
#else
// error here, not portable
#endif
#ifdef RISCV_U_MODE
#define RISCV_USER_ENTRY 0xFFFFFFE000000000ULL
#endif
#ifdef RISCV_S_MODE
//csr in s-mode
// M/U/S Interrupt Registers
#define SRC_XIE sie
#define SRC_XIP sip
#define SRC_XTVEC stvec
#define SRC_XSTATUS sstatus
#define SRC_XSCRATCH sscratch
#define SRC_XEPC sepc
#define SRC_XCAUSE scause
#define SRC_XTVAL stval
#define XRET sret
#else
//csr in m-mode
// M/U/S Interrupt Registers
#define SRC_XIE mie
#define SRC_XIP mip
#define SRC_XTVEC mtvec
#define SRC_XSTATUS mstatus
#define SRC_XSCRATCH mscratch
#define SRC_XEPC mepc
#define SRC_XCAUSE mcause
#define SRC_XTVAL mtval
#define XRET mret
#endif
#endif