1 /*
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2019 Western Digital Corporation or its affiliates.
5  *
6  * Authors:
7  *   Anup Patel <anup.patel@wdc.com>
8  */
9 
10 #ifndef SBI_ECALL_INTERFACE_H
11 #define SBI_ECALL_INTERFACE_H
12 
13 /* clang-format off */
14 
15 #define SBI_SUCCESS                      0
16 #define SBI_ERR_FAILED                  -1
17 #define SBI_ERR_NOT_SUPPORTED           -2
18 #define SBI_ERR_INVALID_PARAM           -3
19 #define SBI_ERR_DENIED                  -4
20 #define SBI_ERR_INVALID_ADDRESS         -5
21 #define SBI_ERR_ALREADY_AVAILABLE       -6
22 #define SBI_ERR_ALREADY_STARTED         -7
23 #define SBI_ERR_ALREADY_STOPPED         -8
24 #define SBI_ERR_NO_SHMEM                -9
25 
26 /* SBI Extension IDs */
27 #define SBI_EXT_0_1_SET_TIMER           0x0
28 #define SBI_EXT_0_1_CONSOLE_PUTCHAR     0x1
29 #define SBI_EXT_0_1_CONSOLE_GETCHAR     0x2
30 #define SBI_EXT_0_1_CLEAR_IPI           0x3
31 #define SBI_EXT_0_1_SEND_IPI            0x4
32 #define SBI_EXT_0_1_REMOTE_FENCE_I      0x5
33 #define SBI_EXT_0_1_REMOTE_SFENCE_VMA   0x6
34 #define SBI_EXT_0_1_REMOTE_SFENCE_VMA_ASID 0x7
35 #define SBI_EXT_0_1_SHUTDOWN            0x8
36 #define SBI_EXT_BASE                    0x10
37 #define SBI_EXT_TIME                    0x54494D45
38 #define SBI_EXT_IPI                     0x735049
39 #define SBI_EXT_RFENCE                  0x52464E43
40 #define SBI_EXT_HSM                     0x48534D
41 #define SBI_EXT_DBCN                    0x4442434E
42 
43 /* SBI function IDs for BASE extension */
44 #define SBI_EXT_BASE_GET_SPEC_VERSION   0x0
45 #define SBI_EXT_BASE_GET_IMP_ID         0x1
46 #define SBI_EXT_BASE_GET_IMP_VERSION    0x2
47 #define SBI_EXT_BASE_PROBE_EXT          0x3
48 #define SBI_EXT_BASE_GET_MVENDORID      0x4
49 #define SBI_EXT_BASE_GET_MARCHID        0x5
50 #define SBI_EXT_BASE_GET_MIMPID         0x6
51 
52 /* SBI function IDs for TIME extension */
53 #define SBI_EXT_TIME_SET_TIMER          0x0
54 
55 /* SBI function IDs for IPI extension */
56 #define SBI_EXT_IPI_SEND_IPI            0x0
57 
58 /* SBI function IDs for RFENCE extension */
59 #define SBI_EXT_RFENCE_REMOTE_FENCE_I       0x0
60 #define SBI_EXT_RFENCE_REMOTE_SFENCE_VMA    0x1
61 #define SBI_EXT_RFENCE_REMOTE_SFENCE_VMA_ASID  0x2
62 #define SBI_EXT_RFENCE_REMOTE_HFENCE_GVMA   0x3
63 #define SBI_EXT_RFENCE_REMOTE_HFENCE_GVMA_VMID 0x4
64 #define SBI_EXT_RFENCE_REMOTE_HFENCE_VVMA   0x5
65 #define SBI_EXT_RFENCE_REMOTE_HFENCE_VVMA_ASID 0x6
66 
67 /* SBI function IDs for HSM extension */
68 #define SBI_EXT_HSM_HART_START          0x0
69 #define SBI_EXT_HSM_HART_STOP           0x1
70 #define SBI_EXT_HSM_HART_GET_STATUS     0x2
71 
72 /* SBI function IDs for DBCN extension */
73 #define SBI_EXT_DBCN_CONSOLE_WRITE      0x0
74 #define SBI_EXT_DBCN_CONSOLE_READ       0x1
75 #define SBI_EXT_DBCN_CONSOLE_WRITE_BYTE 0x2
76 
77 #define SBI_HSM_HART_STATUS_STARTED     0x0
78 #define SBI_HSM_HART_STATUS_STOPPED     0x1
79 #define SBI_HSM_HART_STATUS_START_PENDING   0x2
80 #define SBI_HSM_HART_STATUS_STOP_PENDING    0x3
81 
82 #define SBI_SPEC_VERSION_MAJOR_OFFSET   24
83 #define SBI_SPEC_VERSION_MAJOR_MASK     0x7f
84 #define SBI_SPEC_VERSION_MINOR_MASK     0xffffff
85 #define SBI_EXT_VENDOR_START            0x09000000
86 #define SBI_EXT_VENDOR_END              0x09FFFFFF
87 /* clang-format on */
88 
89 #endif
90