1 /* ARM assembler/disassembler support.
2    Copyright (C) 2004-2018 Free Software Foundation, Inc.
3 
4    This file is part of GDB and GAS.
5 
6    GDB and GAS are free software; you can redistribute it and/or
7    modify it under the terms of the GNU General Public License as
8    published by the Free Software Foundation; either version 3, or (at
9    your option) any later version.
10 
11    GDB and GAS are distributed in the hope that it will be useful, but
12    WITHOUT ANY WARRANTY; without even the implied warranty of
13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14    General Public License for more details.
15 
16    You should have received a copy of the GNU General Public License
17    along with GDB or GAS; see the file COPYING3.  If not, write to the
18    Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston,
19    MA 02110-1301, USA.  */
20 
21 /* The following bitmasks control CPU extensions:  */
22 #define ARM_EXT_V1	 0x00000001	/* All processors (core set).  */
23 #define ARM_EXT_V2	 0x00000002	/* Multiply instructions.  */
24 #define ARM_EXT_V2S	 0x00000004	/* SWP instructions.       */
25 #define ARM_EXT_V3	 0x00000008	/* MSR MRS.                */
26 #define ARM_EXT_V3M	 0x00000010	/* Allow long multiplies.  */
27 #define ARM_EXT_V4	 0x00000020	/* Allow half word loads.  */
28 #define ARM_EXT_V4T	 0x00000040	/* Thumb.                  */
29 #define ARM_EXT_V5	 0x00000080	/* Allow CLZ, etc.         */
30 #define ARM_EXT_V5T	 0x00000100	/* Improved interworking.  */
31 #define ARM_EXT_V5ExP	 0x00000200	/* DSP core set.           */
32 #define ARM_EXT_V5E	 0x00000400	/* DSP Double transfers.   */
33 #define ARM_EXT_V5J	 0x00000800	/* Jazelle extension.	   */
34 #define ARM_EXT_V6       0x00001000     /* ARM V6.                 */
35 #define ARM_EXT_V6K      0x00002000     /* ARM V6K.                */
36 #define ARM_EXT_V8	 0x00004000     /* ARMv8 w/o atomics.      */
37 #define ARM_EXT_V6T2	 0x00008000	/* Thumb-2.                */
38 #define ARM_EXT_DIV	 0x00010000	/* Integer division.       */
39 /* The 'M' in Arm V7M stands for Microcontroller.
40    On earlier architecture variants it stands for Multiply.  */
41 #define ARM_EXT_V5E_NOTM 0x00020000	/* Arm V5E but not Arm V7M. */
42 #define ARM_EXT_V6_NOTM	 0x00040000	/* Arm V6 but not Arm V7M. */
43 #define ARM_EXT_V7	 0x00080000	/* Arm V7.                 */
44 #define ARM_EXT_V7A	 0x00100000	/* Arm V7A.                */
45 #define ARM_EXT_V7R	 0x00200000	/* Arm V7R.                */
46 #define ARM_EXT_V7M	 0x00400000	/* Arm V7M.                */
47 #define ARM_EXT_V6M	 0x00800000	/* ARM V6M.		    */
48 #define ARM_EXT_BARRIER	 0x01000000	/* DSB/DMB/ISB.		    */
49 #define ARM_EXT_THUMB_MSR 0x02000000	/* Thumb MSR/MRS.	    */
50 #define ARM_EXT_V6_DSP 0x04000000	/* ARM v6 (DSP-related),
51 					   not in v7-M.  */
52 #define ARM_EXT_MP       0x08000000     /* Multiprocessing Extensions.  */
53 #define ARM_EXT_SEC	 0x10000000	/* Security extensions.  */
54 #define ARM_EXT_OS	 0x20000000	/* OS Extensions.  */
55 #define ARM_EXT_ADIV	 0x40000000	/* Integer divide extensions in ARM
56 					   state.  */
57 #define ARM_EXT_VIRT	 0x80000000	/* Virtualization extensions.  */
58 
59 #define ARM_EXT2_PAN	 0x00000001     /* PAN extension.  */
60 #define ARM_EXT2_V8_2A	 0x00000002     /* ARM V8.2A.  */
61 #define ARM_EXT2_V8M	 0x00000004	/* ARM V8M.  */
62 #define ARM_EXT2_ATOMICS 0x00000008	/* ARMv8 atomics.  */
63 #define ARM_EXT2_V6T2_V8M  0x00000010	/* V8M Baseline from V6T2.  */
64 #define ARM_EXT2_FP16_INST 0x00000020	/* ARM V8.2A FP16 instructions.  */
65 #define ARM_EXT2_V8M_MAIN  0x00000040	/* ARMv8-M Mainline.  */
66 #define ARM_EXT2_RAS	 0x00000080	/* RAS extension.  */
67 #define ARM_EXT2_V8_3A	 0x00000100	/* ARM V8.3A.  */
68 #define ARM_EXT2_V8A	 0x00000200	/* ARMv8-A.  */
69 #define ARM_EXT2_V8_4A	 0x00000400	/* ARM V8.4A.  */
70 #define ARM_EXT2_FP16_FML 0x00000800	/* ARM V8.2A FP16-FML instructions.  */
71 
72 /* Co-processor space extensions.  */
73 #define ARM_CEXT_XSCALE   0x00000001	/* Allow MIA etc.          */
74 #define ARM_CEXT_MAVERICK 0x00000002	/* Use Cirrus/DSP coprocessor.  */
75 #define ARM_CEXT_IWMMXT   0x00000004    /* Intel Wireless MMX technology coprocessor.  */
76 #define ARM_CEXT_IWMMXT2  0x00000008    /* Intel Wireless MMX technology coprocessor version 2.  */
77 
78 #define FPU_ENDIAN_PURE	 0x80000000	/* Pure-endian doubles.	      */
79 #define FPU_ENDIAN_BIG	 0		/* Double words-big-endian.   */
80 #define FPU_FPA_EXT_V1	 0x40000000	/* Base FPA instruction set.  */
81 #define FPU_FPA_EXT_V2	 0x20000000	/* LFM/SFM.		      */
82 #define FPU_MAVERICK	 0x10000000	/* Cirrus Maverick.	      */
83 #define FPU_VFP_EXT_V1xD 0x08000000	/* Base VFP instruction set.  */
84 #define FPU_VFP_EXT_V1	 0x04000000	/* Double-precision insns.    */
85 #define FPU_VFP_EXT_V2	 0x02000000	/* ARM10E VFPr1.	      */
86 #define FPU_VFP_EXT_V3xD 0x01000000	/* VFPv3 single-precision.    */
87 #define FPU_VFP_EXT_V3	 0x00800000	/* VFPv3 double-precision.    */
88 #define FPU_NEON_EXT_V1	 0x00400000	/* Neon (SIMD) insns.	      */
89 #define FPU_VFP_EXT_D32  0x00200000	/* Registers D16-D31.	      */
90 #define FPU_VFP_EXT_FP16 0x00100000	/* Half-precision extensions. */
91 #define FPU_NEON_EXT_FMA 0x00080000	/* Neon fused multiply-add    */
92 #define FPU_VFP_EXT_FMA	 0x00040000	/* VFP fused multiply-add     */
93 #define FPU_VFP_EXT_ARMV8 0x00020000	/* Double-precision FP for ARMv8.  */
94 #define FPU_NEON_EXT_ARMV8 0x00010000	/* Neon for ARMv8.  */
95 #define FPU_CRYPTO_EXT_ARMV8 0x00008000	/* Crypto for ARMv8.  */
96 #define CRC_EXT_ARMV8	 0x00004000	/* CRC32 for ARMv8.  */
97 #define FPU_VFP_EXT_ARMV8xD 0x00002000	/* Single-precision FP for ARMv8.  */
98 #define FPU_NEON_EXT_RDMA 0x00001000	/* v8.1 Adv.SIMD extensions.  */
99 #define FPU_NEON_EXT_DOTPROD 0x00000800	/* Dot Product extension.  */
100 
101 /* Architectures are the sum of the base and extensions.  The ARM ARM (rev E)
102    defines the following: ARMv3, ARMv3M, ARMv4xM, ARMv4, ARMv4TxM, ARMv4T,
103    ARMv5xM, ARMv5, ARMv5TxM, ARMv5T, ARMv5TExP, ARMv5TE.  To these we add
104    three more to cover cores prior to ARM6.  Finally, there are cores which
105    implement further extensions in the co-processor space.  */
106 #define ARM_AEXT_V1			  ARM_EXT_V1
107 #define ARM_AEXT_V2	(ARM_AEXT_V1	| ARM_EXT_V2)
108 #define ARM_AEXT_V2S	(ARM_AEXT_V2	| ARM_EXT_V2S)
109 #define ARM_AEXT_V3	(ARM_AEXT_V2S	| ARM_EXT_V3)
110 #define ARM_AEXT_V3M	(ARM_AEXT_V3	| ARM_EXT_V3M)
111 #define ARM_AEXT_V4xM	(ARM_AEXT_V3	| ARM_EXT_V4)
112 #define ARM_AEXT_V4	(ARM_AEXT_V3M	| ARM_EXT_V4)
113 #define ARM_AEXT_V4TxM	(ARM_AEXT_V4xM	| ARM_EXT_V4T | ARM_EXT_OS)
114 #define ARM_AEXT_V4T	(ARM_AEXT_V4	| ARM_EXT_V4T | ARM_EXT_OS)
115 #define ARM_AEXT_V5xM	(ARM_AEXT_V4xM	| ARM_EXT_V5)
116 #define ARM_AEXT_V5	(ARM_AEXT_V4	| ARM_EXT_V5)
117 #define ARM_AEXT_V5TxM	(ARM_AEXT_V5xM	| ARM_EXT_V4T | ARM_EXT_V5T \
118 			 | ARM_EXT_OS)
119 #define ARM_AEXT_V5T	(ARM_AEXT_V5	| ARM_EXT_V4T | ARM_EXT_V5T \
120 			 | ARM_EXT_OS)
121 #define ARM_AEXT_V5TExP	(ARM_AEXT_V5T	| ARM_EXT_V5ExP)
122 #define ARM_AEXT_V5TE	(ARM_AEXT_V5TExP | ARM_EXT_V5E)
123 #define ARM_AEXT_V5TEJ	(ARM_AEXT_V5TE	| ARM_EXT_V5J)
124 #define ARM_AEXT_V6     (ARM_AEXT_V5TEJ | ARM_EXT_V6)
125 #define ARM_AEXT_V6K    (ARM_AEXT_V6    | ARM_EXT_V6K)
126 #define ARM_AEXT_V6Z    (ARM_AEXT_V6K	| ARM_EXT_SEC)
127 #define ARM_AEXT_V6KZ   (ARM_AEXT_V6K	| ARM_EXT_SEC)
128 #define ARM_AEXT_V6T2   (ARM_AEXT_V6 \
129     | ARM_EXT_V6T2 | ARM_EXT_V6_NOTM | ARM_EXT_THUMB_MSR \
130     | ARM_EXT_V6_DSP )
131 #define ARM_AEXT_V6KT2  (ARM_AEXT_V6T2 | ARM_EXT_V6K)
132 #define ARM_AEXT_V6ZT2  (ARM_AEXT_V6T2 | ARM_EXT_SEC)
133 #define ARM_AEXT_V6KZT2 (ARM_AEXT_V6T2 | ARM_EXT_V6K | ARM_EXT_SEC)
134 #define ARM_AEXT_V7_ARM	(ARM_AEXT_V6KT2 | ARM_EXT_V7 | ARM_EXT_BARRIER)
135 #define ARM_AEXT_V7A	(ARM_AEXT_V7_ARM | ARM_EXT_V7A)
136 #define ARM_AEXT_V7VE	(ARM_AEXT_V7A  | ARM_EXT_DIV | ARM_EXT_ADIV \
137     | ARM_EXT_VIRT | ARM_EXT_SEC | ARM_EXT_MP)
138 #define ARM_AEXT_V7R	(ARM_AEXT_V7_ARM | ARM_EXT_V7R | ARM_EXT_DIV)
139 #define ARM_AEXT_NOTM \
140   (ARM_AEXT_V4 | ARM_EXT_V5ExP | ARM_EXT_V5J | ARM_EXT_V6_NOTM \
141    | ARM_EXT_V6_DSP )
142 #define ARM_AEXT_V6M_ONLY \
143   ((ARM_EXT_BARRIER | ARM_EXT_V6M | ARM_EXT_THUMB_MSR) & ~(ARM_AEXT_NOTM))
144 #define ARM_AEXT_V6M \
145   ((ARM_AEXT_V6K | ARM_AEXT_V6M_ONLY) & ~(ARM_AEXT_NOTM | ARM_EXT_OS))
146 #define ARM_AEXT_V6SM (ARM_AEXT_V6M | ARM_EXT_OS)
147 #define ARM_AEXT_V7M \
148   ((ARM_AEXT_V7_ARM | ARM_EXT_V6M | ARM_EXT_V7M | ARM_EXT_DIV) \
149    & ~(ARM_AEXT_NOTM))
150 #define ARM_AEXT_V7 (ARM_AEXT_V7A & ARM_AEXT_V7R & ARM_AEXT_V7M)
151 #define ARM_AEXT_V7EM \
152   (ARM_AEXT_V7M | ARM_EXT_V5ExP | ARM_EXT_V6_DSP)
153 #define ARM_AEXT_V8A \
154   (ARM_AEXT_V7A | ARM_EXT_MP | ARM_EXT_SEC | ARM_EXT_DIV | ARM_EXT_ADIV \
155    | ARM_EXT_VIRT | ARM_EXT_V8)
156 #define ARM_AEXT2_V8AR	(ARM_EXT2_V6T2_V8M | ARM_EXT2_ATOMICS)
157 #define ARM_AEXT2_V8A	(ARM_AEXT2_V8AR | ARM_EXT2_V8A)
158 #define ARM_AEXT2_V8_1A	(ARM_AEXT2_V8A | ARM_EXT2_PAN)
159 #define ARM_AEXT2_V8_2A	(ARM_AEXT2_V8_1A | ARM_EXT2_V8_2A | ARM_EXT2_RAS)
160 #define ARM_AEXT2_V8_3A	(ARM_AEXT2_V8_2A | ARM_EXT2_V8_3A)
161 #define ARM_AEXT2_V8_4A	(ARM_AEXT2_V8_3A | ARM_EXT2_FP16_FML | ARM_EXT2_V8_4A)
162 #define ARM_AEXT_V8M_BASE (ARM_AEXT_V6SM | ARM_EXT_DIV)
163 #define ARM_AEXT_V8M_MAIN ARM_AEXT_V7M
164 #define ARM_AEXT_V8M_MAIN_DSP ARM_AEXT_V7EM
165 #define ARM_AEXT2_V8M	(ARM_EXT2_V8M | ARM_EXT2_ATOMICS | ARM_EXT2_V6T2_V8M)
166 #define ARM_AEXT2_V8M_MAIN (ARM_AEXT2_V8M | ARM_EXT2_V8M_MAIN)
167 #define ARM_AEXT2_V8M_MAIN_DSP ARM_AEXT2_V8M_MAIN
168 #define ARM_AEXT_V8R	ARM_AEXT_V8A
169 #define ARM_AEXT2_V8R	ARM_AEXT2_V8AR
170 
171 /* Processors with specific extensions in the co-processor space.  */
172 #define ARM_ARCH_XSCALE	ARM_FEATURE_LOW (ARM_AEXT_V5TE, ARM_CEXT_XSCALE)
173 #define ARM_ARCH_IWMMXT	\
174  ARM_FEATURE_LOW (ARM_AEXT_V5TE, ARM_CEXT_XSCALE | ARM_CEXT_IWMMXT)
175 #define ARM_ARCH_IWMMXT2	\
176  ARM_FEATURE_LOW (ARM_AEXT_V5TE, ARM_CEXT_XSCALE | ARM_CEXT_IWMMXT \
177 		  | ARM_CEXT_IWMMXT2)
178 
179 #define FPU_VFP_V1xD	(FPU_VFP_EXT_V1xD | FPU_ENDIAN_PURE)
180 #define FPU_VFP_V1	(FPU_VFP_V1xD | FPU_VFP_EXT_V1)
181 #define FPU_VFP_V2	(FPU_VFP_V1 | FPU_VFP_EXT_V2)
182 #define FPU_VFP_V3D16	(FPU_VFP_V2 | FPU_VFP_EXT_V3xD | FPU_VFP_EXT_V3)
183 #define FPU_VFP_V3	(FPU_VFP_V3D16 | FPU_VFP_EXT_D32)
184 #define FPU_VFP_V3xD	(FPU_VFP_V1xD | FPU_VFP_EXT_V2 | FPU_VFP_EXT_V3xD)
185 #define FPU_VFP_V4D16	(FPU_VFP_V3D16 | FPU_VFP_EXT_FP16 | FPU_VFP_EXT_FMA)
186 #define FPU_VFP_V4	(FPU_VFP_V3 | FPU_VFP_EXT_FP16 | FPU_VFP_EXT_FMA)
187 #define FPU_VFP_V4_SP_D16 (FPU_VFP_V3xD | FPU_VFP_EXT_FP16 | FPU_VFP_EXT_FMA)
188 #define FPU_VFP_V5D16	(FPU_VFP_V4D16 | FPU_VFP_EXT_ARMV8xD | FPU_VFP_EXT_ARMV8)
189 #define FPU_VFP_V5_SP_D16 (FPU_VFP_V4_SP_D16 | FPU_VFP_EXT_ARMV8xD)
190 #define FPU_VFP_ARMV8	(FPU_VFP_V4 | FPU_VFP_EXT_ARMV8 | FPU_VFP_EXT_ARMV8xD)
191 #define FPU_NEON_ARMV8	(FPU_NEON_EXT_V1 | FPU_NEON_EXT_FMA | FPU_NEON_EXT_ARMV8)
192 #define FPU_CRYPTO_ARMV8 (FPU_CRYPTO_EXT_ARMV8)
193 #define FPU_VFP_HARD	(FPU_VFP_EXT_V1xD | FPU_VFP_EXT_V1 | FPU_VFP_EXT_V2 \
194 			 | FPU_VFP_EXT_V3xD | FPU_VFP_EXT_FMA | FPU_NEON_EXT_FMA \
195                          | FPU_VFP_EXT_V3 | FPU_NEON_EXT_V1 | FPU_VFP_EXT_D32)
196 #define FPU_FPA		(FPU_FPA_EXT_V1 | FPU_FPA_EXT_V2)
197 
198 /* Deprecated.  */
199 #define FPU_ARCH_VFP	ARM_FEATURE_COPROC (FPU_ENDIAN_PURE)
200 
201 #define FPU_ARCH_FPE	ARM_FEATURE_COPROC (FPU_FPA_EXT_V1)
202 #define FPU_ARCH_FPA	ARM_FEATURE_COPROC (FPU_FPA)
203 
204 #define FPU_ARCH_VFP_V1xD ARM_FEATURE_COPROC (FPU_VFP_V1xD)
205 #define FPU_ARCH_VFP_V1	  ARM_FEATURE_COPROC (FPU_VFP_V1)
206 #define FPU_ARCH_VFP_V2	  ARM_FEATURE_COPROC (FPU_VFP_V2)
207 #define FPU_ARCH_VFP_V3D16	ARM_FEATURE_COPROC (FPU_VFP_V3D16)
208 #define FPU_ARCH_VFP_V3D16_FP16 \
209   ARM_FEATURE_COPROC (FPU_VFP_V3D16 | FPU_VFP_EXT_FP16)
210 #define FPU_ARCH_VFP_V3	  ARM_FEATURE_COPROC (FPU_VFP_V3)
211 #define FPU_ARCH_VFP_V3_FP16	ARM_FEATURE_COPROC (FPU_VFP_V3 | FPU_VFP_EXT_FP16)
212 #define FPU_ARCH_VFP_V3xD	ARM_FEATURE_COPROC (FPU_VFP_V3xD)
213 #define FPU_ARCH_VFP_V3xD_FP16	ARM_FEATURE_COPROC (FPU_VFP_V3xD \
214 						 | FPU_VFP_EXT_FP16)
215 #define FPU_ARCH_NEON_V1  ARM_FEATURE_COPROC (FPU_NEON_EXT_V1)
216 #define FPU_ARCH_VFP_V3_PLUS_NEON_V1 \
217   ARM_FEATURE_COPROC (FPU_VFP_V3 | FPU_NEON_EXT_V1)
218 #define FPU_ARCH_NEON_FP16 \
219   ARM_FEATURE_COPROC (FPU_VFP_V3 | FPU_NEON_EXT_V1 | FPU_VFP_EXT_FP16)
220 #define FPU_ARCH_VFP_HARD ARM_FEATURE_COPROC (FPU_VFP_HARD)
221 #define FPU_ARCH_VFP_V4 ARM_FEATURE_COPROC (FPU_VFP_V4)
222 #define FPU_ARCH_VFP_V4D16 ARM_FEATURE_COPROC (FPU_VFP_V4D16)
223 #define FPU_ARCH_VFP_V4_SP_D16 ARM_FEATURE_COPROC (FPU_VFP_V4_SP_D16)
224 #define FPU_ARCH_VFP_V5D16 ARM_FEATURE_COPROC (FPU_VFP_V5D16)
225 #define FPU_ARCH_VFP_V5_SP_D16 ARM_FEATURE_COPROC (FPU_VFP_V5_SP_D16)
226 #define FPU_ARCH_NEON_VFP_V4 \
227   ARM_FEATURE_COPROC (FPU_VFP_V4 | FPU_NEON_EXT_V1 | FPU_NEON_EXT_FMA)
228 #define FPU_ARCH_VFP_ARMV8 ARM_FEATURE_COPROC (FPU_VFP_ARMV8)
229 #define FPU_ARCH_NEON_VFP_ARMV8 ARM_FEATURE_COPROC (FPU_NEON_ARMV8 \
230 						 | FPU_VFP_ARMV8)
231 #define FPU_ARCH_CRYPTO_NEON_VFP_ARMV8 \
232   ARM_FEATURE_COPROC (FPU_CRYPTO_ARMV8 | FPU_NEON_ARMV8 | FPU_VFP_ARMV8)
233 #define FPU_ARCH_CRYPTO_NEON_VFP_ARMV8_DOTPROD \
234   ARM_FEATURE_COPROC (FPU_CRYPTO_ARMV8 | FPU_NEON_ARMV8 | FPU_VFP_ARMV8 \
235 		      | FPU_NEON_EXT_DOTPROD)
236 #define ARCH_CRC_ARMV8 ARM_FEATURE_COPROC (CRC_EXT_ARMV8)
237 #define FPU_ARCH_NEON_VFP_ARMV8_1 \
238   ARM_FEATURE_COPROC (FPU_NEON_ARMV8				 \
239 		      | FPU_VFP_ARMV8				 \
240 		      | FPU_NEON_EXT_RDMA)
241 #define FPU_ARCH_CRYPTO_NEON_VFP_ARMV8_1 \
242   ARM_FEATURE_COPROC (FPU_CRYPTO_ARMV8 | FPU_NEON_ARMV8 | FPU_VFP_ARMV8 \
243 		      | FPU_NEON_EXT_RDMA)
244 #define FPU_ARCH_DOTPROD_NEON_VFP_ARMV8 \
245   ARM_FEATURE_COPROC (FPU_NEON_EXT_DOTPROD | FPU_NEON_ARMV8 | FPU_VFP_ARMV8)
246 
247 
248 #define FPU_ARCH_ENDIAN_PURE ARM_FEATURE_COPROC (FPU_ENDIAN_PURE)
249 
250 #define FPU_ARCH_MAVERICK ARM_FEATURE_COPROC (FPU_MAVERICK)
251 
252 #define ARM_ARCH_V1	ARM_FEATURE_CORE_LOW (ARM_AEXT_V1)
253 #define ARM_ARCH_V2	ARM_FEATURE_CORE_LOW (ARM_AEXT_V2)
254 #define ARM_ARCH_V2S	ARM_FEATURE_CORE_LOW (ARM_AEXT_V2S)
255 #define ARM_ARCH_V3	ARM_FEATURE_CORE_LOW (ARM_AEXT_V3)
256 #define ARM_ARCH_V3M	ARM_FEATURE_CORE_LOW (ARM_AEXT_V3M)
257 #define ARM_ARCH_V4xM	ARM_FEATURE_CORE_LOW (ARM_AEXT_V4xM)
258 #define ARM_ARCH_V4	ARM_FEATURE_CORE_LOW (ARM_AEXT_V4)
259 #define ARM_ARCH_V4TxM	ARM_FEATURE_CORE_LOW (ARM_AEXT_V4TxM)
260 #define ARM_ARCH_V4T	ARM_FEATURE_CORE_LOW (ARM_AEXT_V4T)
261 #define ARM_ARCH_V5xM	ARM_FEATURE_CORE_LOW (ARM_AEXT_V5xM)
262 #define ARM_ARCH_V5	ARM_FEATURE_CORE_LOW (ARM_AEXT_V5)
263 #define ARM_ARCH_V5TxM	ARM_FEATURE_CORE_LOW (ARM_AEXT_V5TxM)
264 #define ARM_ARCH_V5T	ARM_FEATURE_CORE_LOW (ARM_AEXT_V5T)
265 #define ARM_ARCH_V5TExP	ARM_FEATURE_CORE_LOW (ARM_AEXT_V5TExP)
266 #define ARM_ARCH_V5TE	ARM_FEATURE_CORE_LOW (ARM_AEXT_V5TE)
267 #define ARM_ARCH_V5TEJ	ARM_FEATURE_CORE_LOW (ARM_AEXT_V5TEJ)
268 #define ARM_ARCH_V6	ARM_FEATURE_CORE_LOW (ARM_AEXT_V6)
269 #define ARM_ARCH_V6K	ARM_FEATURE_CORE_LOW (ARM_AEXT_V6K)
270 #define ARM_ARCH_V6Z	ARM_FEATURE_CORE_LOW (ARM_AEXT_V6Z)
271 #define ARM_ARCH_V6KZ	ARM_FEATURE_CORE_LOW (ARM_AEXT_V6KZ)
272 #define ARM_ARCH_V6T2	ARM_FEATURE_CORE (ARM_AEXT_V6T2, ARM_EXT2_V6T2_V8M)
273 #define ARM_ARCH_V6KT2	ARM_FEATURE_CORE (ARM_AEXT_V6KT2, ARM_EXT2_V6T2_V8M)
274 #define ARM_ARCH_V6ZT2	ARM_FEATURE_CORE (ARM_AEXT_V6ZT2, ARM_EXT2_V6T2_V8M)
275 #define ARM_ARCH_V6KZT2	ARM_FEATURE_CORE (ARM_AEXT_V6KZT2, ARM_EXT2_V6T2_V8M)
276 #define ARM_ARCH_V6M	ARM_FEATURE_CORE_LOW (ARM_AEXT_V6M)
277 #define ARM_ARCH_V6SM	ARM_FEATURE_CORE_LOW (ARM_AEXT_V6SM)
278 #define ARM_ARCH_V7	ARM_FEATURE_CORE (ARM_AEXT_V7, ARM_EXT2_V6T2_V8M)
279 #define ARM_ARCH_V7A	ARM_FEATURE_CORE (ARM_AEXT_V7A, ARM_EXT2_V6T2_V8M)
280 #define ARM_ARCH_V7VE	ARM_FEATURE_CORE (ARM_AEXT_V7VE, ARM_EXT2_V6T2_V8M)
281 #define ARM_ARCH_V7R	ARM_FEATURE_CORE (ARM_AEXT_V7R, ARM_EXT2_V6T2_V8M)
282 #define ARM_ARCH_V7M	ARM_FEATURE_CORE (ARM_AEXT_V7M, ARM_EXT2_V6T2_V8M)
283 #define ARM_ARCH_V7EM	ARM_FEATURE_CORE (ARM_AEXT_V7EM, ARM_EXT2_V6T2_V8M)
284 #define ARM_ARCH_V8A	ARM_FEATURE_CORE (ARM_AEXT_V8A, ARM_AEXT2_V8A)
285 #define ARM_ARCH_V8A_CRC ARM_FEATURE (ARM_AEXT_V8A, ARM_AEXT2_V8A, \
286 				      CRC_EXT_ARMV8)
287 #define ARM_ARCH_V8_1A	ARM_FEATURE (ARM_AEXT_V8A, ARM_AEXT2_V8_1A,	\
288 				     CRC_EXT_ARMV8 | FPU_NEON_EXT_RDMA)
289 #define ARM_ARCH_V8_2A	ARM_FEATURE (ARM_AEXT_V8A, ARM_AEXT2_V8_2A,	\
290 				     CRC_EXT_ARMV8 | FPU_NEON_EXT_RDMA)
291 #define ARM_ARCH_V8_3A	ARM_FEATURE (ARM_AEXT_V8A, ARM_AEXT2_V8_3A,	\
292 				     CRC_EXT_ARMV8 | FPU_NEON_EXT_RDMA)
293 #define ARM_ARCH_V8_4A	ARM_FEATURE (ARM_AEXT_V8A, ARM_AEXT2_V8_4A,	\
294 				     CRC_EXT_ARMV8 | FPU_NEON_EXT_RDMA \
295 				     | FPU_NEON_EXT_DOTPROD)
296 #define ARM_ARCH_V8M_BASE ARM_FEATURE_CORE (ARM_AEXT_V8M_BASE, ARM_AEXT2_V8M)
297 #define ARM_ARCH_V8M_MAIN ARM_FEATURE_CORE (ARM_AEXT_V8M_MAIN, \
298 					    ARM_AEXT2_V8M_MAIN)
299 #define ARM_ARCH_V8M_MAIN_DSP ARM_FEATURE_CORE (ARM_AEXT_V8M_MAIN_DSP, \
300 						ARM_AEXT2_V8M_MAIN_DSP)
301 #define ARM_ARCH_V8R	ARM_FEATURE_CORE (ARM_AEXT_V8R, ARM_AEXT2_V8R)
302 
303 /* Some useful combinations:  */
304 #define ARM_ARCH_NONE	ARM_FEATURE_LOW (0, 0)
305 #define FPU_NONE	ARM_FEATURE_LOW (0, 0)
306 #define ARM_ANY		ARM_FEATURE (-1, -1, 0)	/* Any basic core.  */
307 #define FPU_ANY		ARM_FEATURE_COPROC (-1) /* Any FPU.  */
308 #define ARM_FEATURE_ALL	ARM_FEATURE (-1, -1, -1)/* All CPU and FPU features.  */
309 #define FPU_ANY_HARD	ARM_FEATURE_COPROC (FPU_FPA | FPU_VFP_HARD | FPU_MAVERICK)
310 /* Extensions containing some Thumb-2 instructions.  If any is present, Thumb
311    ISA is Thumb-2.  */
312 #define ARM_ARCH_THUMB2 ARM_FEATURE_CORE (ARM_EXT_V6T2 | ARM_EXT_V7	\
313 					  | ARM_EXT_DIV | ARM_EXT_V8,	\
314 					  ARM_EXT2_ATOMICS | ARM_EXT2_V6T2_V8M)
315 /* v7-a+sec.  */
316 #define ARM_ARCH_V7A_SEC \
317   ARM_FEATURE_CORE (ARM_AEXT_V7A | ARM_EXT_SEC, ARM_EXT2_V6T2_V8M)
318 /* v7-a+mp+sec.  */
319 #define ARM_ARCH_V7A_MP_SEC \
320   ARM_FEATURE_CORE (ARM_AEXT_V7A | ARM_EXT_MP | ARM_EXT_SEC, ARM_EXT2_V6T2_V8M)
321 /* v7-r+idiv.  */
322 #define ARM_ARCH_V7R_IDIV \
323   ARM_FEATURE_CORE (ARM_AEXT_V7R | ARM_EXT_ADIV, ARM_EXT2_V6T2_V8M)
324 /* Features that are present in v6M and v6S-M but not other v6 cores.  */
325 #define ARM_ARCH_V6M_ONLY ARM_FEATURE_CORE_LOW (ARM_AEXT_V6M_ONLY)
326 /* v8-a+fp.  */
327 #define ARM_ARCH_V8A_FP	\
328   ARM_FEATURE (ARM_AEXT_V8A, ARM_AEXT2_V8A, FPU_ARCH_VFP_ARMV8)
329 /* v8-a+simd (implies fp).  */
330 #define ARM_ARCH_V8A_SIMD \
331   ARM_FEATURE (ARM_AEXT_V8A, ARM_AEXT2_V8A, FPU_ARCH_NEON_VFP_ARMV8)
332 /* v8-a+crypto (implies simd+fp).  */
333 #define ARM_ARCH_V8A_CRYPTOV1 \
334   ARM_FEATURE (ARM_AEXT_V8A, ARM_AEXT2_V8A, FPU_ARCH_CRYPTO_NEON_VFP_ARMV8)
335 
336 /* v8.1-a+fp.  */
337 #define ARM_ARCH_V8_1A_FP \
338   ARM_FEATURE (ARM_AEXT_V8A, ARM_AEXT2_V8_1A, FPU_ARCH_VFP_ARMV8)
339 /* v8.1-a+simd (implies fp).  */
340 #define ARM_ARCH_V8_1A_SIMD \
341   ARM_FEATURE (ARM_AEXT_V8A, ARM_AEXT2_V8_1A, FPU_ARCH_NEON_VFP_ARMV8_1)
342 /* v8.1-a+crypto (implies simd+fp).  */
343 #define ARM_ARCH_V8_1A_CRYPTOV1 \
344   ARM_FEATURE (ARM_AEXT_V8A, ARM_AEXT2_V8_1A, FPU_ARCH_CRYPTO_NEON_VFP_ARMV8_1)
345 
346 
347 /* There are too many feature bits to fit in a single word, so use a
348    structure.  For simplicity we put all core features in array CORE
349    and everything else in the other.  All the bits in element core[0]
350    have been occupied, so new feature should use bit in element core[1]
351    and use macro ARM_FEATURE to initialize the feature set variable.  */
352 typedef struct
353 {
354   unsigned long core[2];
355   unsigned long coproc;
356 } arm_feature_set;
357 
358 /* Test whether CPU and FEAT have any features in common.  */
359 #define ARM_CPU_HAS_FEATURE(CPU,FEAT) \
360   (((CPU).core[0] & (FEAT).core[0]) != 0 \
361    || ((CPU).core[1] & (FEAT).core[1]) != 0 \
362    || ((CPU).coproc & (FEAT).coproc) != 0)
363 
364 /* Tests whether the features of A are a subset of B.  */
365 #define ARM_FSET_CPU_SUBSET(A,B) \
366   (((A).core[0] & (B).core[0]) == (A).core[0] \
367    && ((A).core[1] & (B).core[1]) == (A).core[1] \
368    && ((A).coproc & (B).coproc) == (A).coproc)
369 
370 #define ARM_CPU_IS_ANY(CPU) \
371   ((CPU).core[0] == ((arm_feature_set)ARM_ANY).core[0] \
372    && (CPU).core[1] == ((arm_feature_set)ARM_ANY).core[1])
373 
374 #define ARM_MERGE_FEATURE_SETS(TARG,F1,F2)		\
375   do							\
376     {							\
377       (TARG).core[0] = (F1).core[0] | (F2).core[0];	\
378       (TARG).core[1] = (F1).core[1] | (F2).core[1];	\
379       (TARG).coproc = (F1).coproc | (F2).coproc;	\
380     }							\
381   while (0)
382 
383 #define ARM_CLEAR_FEATURE(TARG,F1,F2)			\
384   do							\
385     {							\
386       (TARG).core[0] = (F1).core[0] &~ (F2).core[0];	\
387       (TARG).core[1] = (F1).core[1] &~ (F2).core[1];	\
388       (TARG).coproc = (F1).coproc &~ (F2).coproc;	\
389     }							\
390   while (0)
391 
392 #define ARM_FEATURE_COPY(F1, F2)		\
393   do						\
394     {						\
395       (F1).core[0] = (F2).core[0];		\
396       (F1).core[1] = (F2).core[1];		\
397       (F1).coproc = (F2).coproc;		\
398     }						\
399   while (0)
400 
401 #define ARM_FEATURE_EQUAL(T1,T2)		\
402   (   (T1).core[0] == (T2).core[0]		\
403    && (T1).core[1] == (T2).core[1]		\
404    && (T1).coproc  == (T2).coproc)
405 
406 #define ARM_FEATURE_ZERO(T)			\
407   ((T).core[0] == 0 && (T).core[1] == 0 && (T).coproc == 0)
408 
409 #define ARM_FEATURE_CORE_EQUAL(T1, T2)		\
410   ((T1).core[0] == (T2).core[0] && (T1).core[1] == (T2).core[1])
411 
412 #define ARM_FEATURE_LOW(core, coproc) {{(core), 0}, (coproc)}
413 #define ARM_FEATURE_CORE(core1, core2) {{(core1), (core2)}, 0}
414 #define ARM_FEATURE_CORE_LOW(core) {{(core), 0}, 0}
415 #define ARM_FEATURE_CORE_HIGH(core) {{0, (core)}, 0}
416 #define ARM_FEATURE_COPROC(coproc) {{0, 0}, (coproc)}
417 #define ARM_FEATURE(core1, core2, coproc) {{(core1), (core2)}, (coproc)}
418