1 /* SPDX-License-Identifier: GPL-2.0-only */
2 
3 #ifndef __ASM_KGDB_H_
4 #define __ASM_KGDB_H_
5 
6 #ifdef __KERNEL__
7 
8 #define GDB_SIZEOF_REG sizeof(unsigned long)
9 
10 #define DBG_MAX_REG_NUM (36)
11 #define NUMREGBYTES ((DBG_MAX_REG_NUM) * GDB_SIZEOF_REG)
12 #define CACHE_FLUSH_IS_SAFE     1
13 #define BUFMAX                  2048
14 #ifdef CONFIG_RISCV_ISA_C
15 #define BREAK_INSTR_SIZE	2
16 #else
17 #define BREAK_INSTR_SIZE	4
18 #endif
19 
20 #ifndef	__ASSEMBLY__
21 
22 void arch_kgdb_breakpoint(void);
23 extern unsigned long kgdb_compiled_break;
24 
25 #endif /* !__ASSEMBLY__ */
26 
27 #define DBG_REG_ZERO "zero"
28 #define DBG_REG_RA "ra"
29 #define DBG_REG_SP "sp"
30 #define DBG_REG_GP "gp"
31 #define DBG_REG_TP "tp"
32 #define DBG_REG_T0 "t0"
33 #define DBG_REG_T1 "t1"
34 #define DBG_REG_T2 "t2"
35 #define DBG_REG_FP "fp"
36 #define DBG_REG_S1 "s1"
37 #define DBG_REG_A0 "a0"
38 #define DBG_REG_A1 "a1"
39 #define DBG_REG_A2 "a2"
40 #define DBG_REG_A3 "a3"
41 #define DBG_REG_A4 "a4"
42 #define DBG_REG_A5 "a5"
43 #define DBG_REG_A6 "a6"
44 #define DBG_REG_A7 "a7"
45 #define DBG_REG_S2 "s2"
46 #define DBG_REG_S3 "s3"
47 #define DBG_REG_S4 "s4"
48 #define DBG_REG_S5 "s5"
49 #define DBG_REG_S6 "s6"
50 #define DBG_REG_S7 "s7"
51 #define DBG_REG_S8 "s8"
52 #define DBG_REG_S9 "s9"
53 #define DBG_REG_S10 "s10"
54 #define DBG_REG_S11 "s11"
55 #define DBG_REG_T3 "t3"
56 #define DBG_REG_T4 "t4"
57 #define DBG_REG_T5 "t5"
58 #define DBG_REG_T6 "t6"
59 #define DBG_REG_EPC "pc"
60 #define DBG_REG_STATUS "sstatus"
61 #define DBG_REG_BADADDR "stval"
62 #define DBG_REG_CAUSE "scause"
63 
64 #define DBG_REG_ZERO_OFF 0
65 #define DBG_REG_RA_OFF 1
66 #define DBG_REG_SP_OFF 2
67 #define DBG_REG_GP_OFF 3
68 #define DBG_REG_TP_OFF 4
69 #define DBG_REG_T0_OFF 5
70 #define DBG_REG_T1_OFF 6
71 #define DBG_REG_T2_OFF 7
72 #define DBG_REG_FP_OFF 8
73 #define DBG_REG_S1_OFF 9
74 #define DBG_REG_A0_OFF 10
75 #define DBG_REG_A1_OFF 11
76 #define DBG_REG_A2_OFF 12
77 #define DBG_REG_A3_OFF 13
78 #define DBG_REG_A4_OFF 14
79 #define DBG_REG_A5_OFF 15
80 #define DBG_REG_A6_OFF 16
81 #define DBG_REG_A7_OFF 17
82 #define DBG_REG_S2_OFF 18
83 #define DBG_REG_S3_OFF 19
84 #define DBG_REG_S4_OFF 20
85 #define DBG_REG_S5_OFF 21
86 #define DBG_REG_S6_OFF 22
87 #define DBG_REG_S7_OFF 23
88 #define DBG_REG_S8_OFF 24
89 #define DBG_REG_S9_OFF 25
90 #define DBG_REG_S10_OFF 26
91 #define DBG_REG_S11_OFF 27
92 #define DBG_REG_T3_OFF 28
93 #define DBG_REG_T4_OFF 29
94 #define DBG_REG_T5_OFF 30
95 #define DBG_REG_T6_OFF 31
96 #define DBG_REG_EPC_OFF 32
97 #define DBG_REG_STATUS_OFF 33
98 #define DBG_REG_BADADDR_OFF 34
99 #define DBG_REG_CAUSE_OFF 35
100 
101 extern const char riscv_gdb_stub_feature[64];
102 
103 #define kgdb_arch_gdb_stub_feature riscv_gdb_stub_feature
104 
105 #endif
106 #endif
107