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 /* SBI Extension IDs */
16 #define SBI_EXT_0_1_SET_TIMER           0x0
17 #define SBI_EXT_0_1_CONSOLE_PUTCHAR     0x1
18 #define SBI_EXT_0_1_CONSOLE_GETCHAR     0x2
19 #define SBI_EXT_0_1_CLEAR_IPI           0x3
20 #define SBI_EXT_0_1_SEND_IPI            0x4
21 #define SBI_EXT_0_1_REMOTE_FENCE_I      0x5
22 #define SBI_EXT_0_1_REMOTE_SFENCE_VMA   0x6
23 #define SBI_EXT_0_1_REMOTE_SFENCE_VMA_ASID 0x7
24 #define SBI_EXT_0_1_SHUTDOWN            0x8
25 #define SBI_EXT_BASE                    0x10
26 #define SBI_EXT_TIME                    0x54494D45
27 #define SBI_EXT_IPI                     0x735049
28 #define SBI_EXT_RFENCE                  0x52464E43
29 #define SBI_EXT_HSM                     0x48534D
30 
31 /* SBI function IDs for BASE extension*/
32 #define SBI_EXT_BASE_GET_SPEC_VERSION   0x0
33 #define SBI_EXT_BASE_GET_IMP_ID         0x1
34 #define SBI_EXT_BASE_GET_IMP_VERSION    0x2
35 #define SBI_EXT_BASE_PROBE_EXT          0x3
36 #define SBI_EXT_BASE_GET_MVENDORID      0x4
37 #define SBI_EXT_BASE_GET_MARCHID        0x5
38 #define SBI_EXT_BASE_GET_MIMPID         0x6
39 
40 /* SBI function IDs for TIME extension*/
41 #define SBI_EXT_TIME_SET_TIMER          0x0
42 
43 /* SBI function IDs for IPI extension*/
44 #define SBI_EXT_IPI_SEND_IPI            0x0
45 
46 /* SBI function IDs for RFENCE extension*/
47 #define SBI_EXT_RFENCE_REMOTE_FENCE_I       0x0
48 #define SBI_EXT_RFENCE_REMOTE_SFENCE_VMA    0x1
49 #define SBI_EXT_RFENCE_REMOTE_SFENCE_VMA_ASID  0x2
50 #define SBI_EXT_RFENCE_REMOTE_HFENCE_GVMA   0x3
51 #define SBI_EXT_RFENCE_REMOTE_HFENCE_GVMA_VMID 0x4
52 #define SBI_EXT_RFENCE_REMOTE_HFENCE_VVMA   0x5
53 #define SBI_EXT_RFENCE_REMOTE_HFENCE_VVMA_ASID 0x6
54 
55 /* SBI function IDs for HSM extension */
56 #define SBI_EXT_HSM_HART_START          0x0
57 #define SBI_EXT_HSM_HART_STOP           0x1
58 #define SBI_EXT_HSM_HART_GET_STATUS     0x2
59 
60 #define SBI_HSM_HART_STATUS_STARTED     0x0
61 #define SBI_HSM_HART_STATUS_STOPPED     0x1
62 #define SBI_HSM_HART_STATUS_START_PENDING   0x2
63 #define SBI_HSM_HART_STATUS_STOP_PENDING    0x3
64 
65 #define SBI_SPEC_VERSION_MAJOR_OFFSET   24
66 #define SBI_SPEC_VERSION_MAJOR_MASK     0x7f
67 #define SBI_SPEC_VERSION_MINOR_MASK     0xffffff
68 #define SBI_EXT_VENDOR_START            0x09000000
69 #define SBI_EXT_VENDOR_END              0x09FFFFFF
70 /* clang-format on */
71 
72 #endif
73