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1 /*
2  * Copyright (C) 2013 - ARM Ltd
3  * Author: Marc Zyngier <marc.zyngier@arm.com>
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License version 2 as
7  * published by the Free Software Foundation.
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
16  */
17 
18 #ifndef __ASM_ESR_H
19 #define __ASM_ESR_H
20 
21 #include <asm/memory.h>
22 
23 #define ESR_ELx_EC_UNKNOWN	(0x00)
24 #define ESR_ELx_EC_WFx		(0x01)
25 /* Unallocated EC: 0x02 */
26 #define ESR_ELx_EC_CP15_32	(0x03)
27 #define ESR_ELx_EC_CP15_64	(0x04)
28 #define ESR_ELx_EC_CP14_MR	(0x05)
29 #define ESR_ELx_EC_CP14_LS	(0x06)
30 #define ESR_ELx_EC_FP_ASIMD	(0x07)
31 #define ESR_ELx_EC_CP10_ID	(0x08)
32 /* Unallocated EC: 0x09 - 0x0B */
33 #define ESR_ELx_EC_CP14_64	(0x0C)
34 /* Unallocated EC: 0x0d */
35 #define ESR_ELx_EC_ILL		(0x0E)
36 /* Unallocated EC: 0x0F - 0x10 */
37 #define ESR_ELx_EC_SVC32	(0x11)
38 #define ESR_ELx_EC_HVC32	(0x12)
39 #define ESR_ELx_EC_SMC32	(0x13)
40 /* Unallocated EC: 0x14 */
41 #define ESR_ELx_EC_SVC64	(0x15)
42 #define ESR_ELx_EC_HVC64	(0x16)
43 #define ESR_ELx_EC_SMC64	(0x17)
44 #define ESR_ELx_EC_SYS64	(0x18)
45 /* Unallocated EC: 0x19 - 0x1E */
46 #define ESR_ELx_EC_IMP_DEF	(0x1f)
47 #define ESR_ELx_EC_IABT_LOW	(0x20)
48 #define ESR_ELx_EC_IABT_CUR	(0x21)
49 #define ESR_ELx_EC_PC_ALIGN	(0x22)
50 /* Unallocated EC: 0x23 */
51 #define ESR_ELx_EC_DABT_LOW	(0x24)
52 #define ESR_ELx_EC_DABT_CUR	(0x25)
53 #define ESR_ELx_EC_SP_ALIGN	(0x26)
54 /* Unallocated EC: 0x27 */
55 #define ESR_ELx_EC_FP_EXC32	(0x28)
56 /* Unallocated EC: 0x29 - 0x2B */
57 #define ESR_ELx_EC_FP_EXC64	(0x2C)
58 /* Unallocated EC: 0x2D - 0x2E */
59 #define ESR_ELx_EC_SERROR	(0x2F)
60 #define ESR_ELx_EC_BREAKPT_LOW	(0x30)
61 #define ESR_ELx_EC_BREAKPT_CUR	(0x31)
62 #define ESR_ELx_EC_SOFTSTP_LOW	(0x32)
63 #define ESR_ELx_EC_SOFTSTP_CUR	(0x33)
64 #define ESR_ELx_EC_WATCHPT_LOW	(0x34)
65 #define ESR_ELx_EC_WATCHPT_CUR	(0x35)
66 /* Unallocated EC: 0x36 - 0x37 */
67 #define ESR_ELx_EC_BKPT32	(0x38)
68 /* Unallocated EC: 0x39 */
69 #define ESR_ELx_EC_VECTOR32	(0x3A)
70 /* Unallocted EC: 0x3B */
71 #define ESR_ELx_EC_BRK64	(0x3C)
72 /* Unallocated EC: 0x3D - 0x3F */
73 #define ESR_ELx_EC_MAX		(0x3F)
74 
75 #define ESR_ELx_EC_SHIFT	(26)
76 #define ESR_ELx_EC_MASK		(UL(0x3F) << ESR_ELx_EC_SHIFT)
77 #define ESR_ELx_EC(esr)		(((esr) & ESR_ELx_EC_MASK) >> ESR_ELx_EC_SHIFT)
78 
79 #define ESR_ELx_IL		(UL(1) << 25)
80 #define ESR_ELx_ISS_MASK	(ESR_ELx_IL - 1)
81 #define ESR_ELx_ISV		(UL(1) << 24)
82 #define ESR_ELx_SAS_SHIFT	(22)
83 #define ESR_ELx_SAS		(UL(3) << ESR_ELx_SAS_SHIFT)
84 #define ESR_ELx_SSE		(UL(1) << 21)
85 #define ESR_ELx_SRT_SHIFT	(16)
86 #define ESR_ELx_SRT_MASK	(UL(0x1F) << ESR_ELx_SRT_SHIFT)
87 #define ESR_ELx_SF 		(UL(1) << 15)
88 #define ESR_ELx_AR 		(UL(1) << 14)
89 #define ESR_ELx_EA 		(UL(1) << 9)
90 #define ESR_ELx_CM 		(UL(1) << 8)
91 #define ESR_ELx_S1PTW 		(UL(1) << 7)
92 #define ESR_ELx_WNR		(UL(1) << 6)
93 #define ESR_ELx_FSC		(0x3F)
94 #define ESR_ELx_FSC_TYPE	(0x3C)
95 #define ESR_ELx_FSC_EXTABT	(0x10)
96 #define ESR_ELx_FSC_ACCESS	(0x08)
97 #define ESR_ELx_FSC_FAULT	(0x04)
98 #define ESR_ELx_FSC_PERM	(0x0C)
99 #define ESR_ELx_CV		(UL(1) << 24)
100 #define ESR_ELx_COND_SHIFT	(20)
101 #define ESR_ELx_COND_MASK	(UL(0xF) << ESR_ELx_COND_SHIFT)
102 #define ESR_ELx_WFx_ISS_WFE	(UL(1) << 0)
103 #define ESR_ELx_xVC_IMM_MASK	((1UL << 16) - 1)
104 
105 /* ESR value templates for specific events */
106 
107 /* BRK instruction trap from AArch64 state */
108 #define ESR_ELx_VAL_BRK64(imm)					\
109 	((ESR_ELx_EC_BRK64 << ESR_ELx_EC_SHIFT) | ESR_ELx_IL |	\
110 	 ((imm) & 0xffff))
111 
112 /* ISS field definitions for System instruction traps */
113 #define ESR_ELx_SYS64_ISS_RES0_SHIFT	22
114 #define ESR_ELx_SYS64_ISS_RES0_MASK	(UL(0x7) << ESR_ELx_SYS64_ISS_RES0_SHIFT)
115 #define ESR_ELx_SYS64_ISS_DIR_MASK	0x1
116 #define ESR_ELx_SYS64_ISS_DIR_READ	0x1
117 #define ESR_ELx_SYS64_ISS_DIR_WRITE	0x0
118 
119 #define ESR_ELx_SYS64_ISS_RT_SHIFT	5
120 #define ESR_ELx_SYS64_ISS_RT_MASK	(UL(0x1f) << ESR_ELx_SYS64_ISS_RT_SHIFT)
121 #define ESR_ELx_SYS64_ISS_CRM_SHIFT	1
122 #define ESR_ELx_SYS64_ISS_CRM_MASK	(UL(0xf) << ESR_ELx_SYS64_ISS_CRM_SHIFT)
123 #define ESR_ELx_SYS64_ISS_CRN_SHIFT	10
124 #define ESR_ELx_SYS64_ISS_CRN_MASK	(UL(0xf) << ESR_ELx_SYS64_ISS_CRN_SHIFT)
125 #define ESR_ELx_SYS64_ISS_OP1_SHIFT	14
126 #define ESR_ELx_SYS64_ISS_OP1_MASK	(UL(0x7) << ESR_ELx_SYS64_ISS_OP1_SHIFT)
127 #define ESR_ELx_SYS64_ISS_OP2_SHIFT	17
128 #define ESR_ELx_SYS64_ISS_OP2_MASK	(UL(0x7) << ESR_ELx_SYS64_ISS_OP2_SHIFT)
129 #define ESR_ELx_SYS64_ISS_OP0_SHIFT	20
130 #define ESR_ELx_SYS64_ISS_OP0_MASK	(UL(0x3) << ESR_ELx_SYS64_ISS_OP0_SHIFT)
131 #define ESR_ELx_SYS64_ISS_SYS_MASK	(ESR_ELx_SYS64_ISS_OP0_MASK | \
132 					 ESR_ELx_SYS64_ISS_OP1_MASK | \
133 					 ESR_ELx_SYS64_ISS_OP2_MASK | \
134 					 ESR_ELx_SYS64_ISS_CRN_MASK | \
135 					 ESR_ELx_SYS64_ISS_CRM_MASK)
136 #define ESR_ELx_SYS64_ISS_SYS_VAL(op0, op1, op2, crn, crm) \
137 					(((op0) << ESR_ELx_SYS64_ISS_OP0_SHIFT) | \
138 					 ((op1) << ESR_ELx_SYS64_ISS_OP1_SHIFT) | \
139 					 ((op2) << ESR_ELx_SYS64_ISS_OP2_SHIFT) | \
140 					 ((crn) << ESR_ELx_SYS64_ISS_CRN_SHIFT) | \
141 					 ((crm) << ESR_ELx_SYS64_ISS_CRM_SHIFT))
142 
143 #define ESR_ELx_SYS64_ISS_SYS_OP_MASK	(ESR_ELx_SYS64_ISS_SYS_MASK | \
144 					 ESR_ELx_SYS64_ISS_DIR_MASK)
145 
146 #define ESR_ELx_SYS64_ISS_SYS_CNTVCT	(ESR_ELx_SYS64_ISS_SYS_VAL(3, 3, 2, 14, 0) | \
147 					 ESR_ELx_SYS64_ISS_DIR_READ)
148 
149 #define ESR_ELx_SYS64_ISS_SYS_CNTFRQ	(ESR_ELx_SYS64_ISS_SYS_VAL(3, 3, 0, 14, 0) | \
150 					 ESR_ELx_SYS64_ISS_DIR_READ)
151 
152 #ifndef __ASSEMBLY__
153 #include <asm/types.h>
154 
155 const char *esr_get_class_string(u32 esr);
156 #endif /* __ASSEMBLY */
157 
158 #endif /* __ASM_ESR_H */
159