sme-inst.h

 1// SPDX-License-Identifier: GPL-2.0-only
 2// Copyright (C) 2021-2 ARM Limited.
 3// Original author: Mark Brown <broonie@kernel.org>
 4
 5#ifndef SME_INST_H
 6#define SME_INST_H
 7
 8#define REG_FPMR                                        S3_3_C4_C4_2
 9
10/*
11 * RDSVL X\nx, #\imm
12 */
13.macro rdsvl nx, imm
14	.inst	0x4bf5800			\
15		| (\imm << 5)			\
16		| (\nx)
17.endm
18
19.macro smstop
20	msr	S0_3_C4_C6_3, xzr
21.endm
22
23.macro smstart_za
24	msr	S0_3_C4_C5_3, xzr
25.endm
26
27.macro smstart_sm
28	msr	S0_3_C4_C3_3, xzr
29.endm
30
31/*
32 * LDR (vector to ZA array):
33 *	LDR ZA[\nw, #\offset], [X\nxbase, #\offset, MUL VL]
34 */
35.macro _ldr_za nw, nxbase, offset=0
36	.inst	0xe1000000			\
37		| (((\nw) & 3) << 13)		\
38		| ((\nxbase) << 5)		\
39		| ((\offset) & 7)
40.endm
41
42/*
43 * STR (vector from ZA array):
44 *	STR ZA[\nw, #\offset], [X\nxbase, #\offset, MUL VL]
45 */
46.macro _str_za nw, nxbase, offset=0
47	.inst	0xe1200000			\
48		| (((\nw) & 3) << 13)		\
49		| ((\nxbase) << 5)		\
50		| ((\offset) & 7)
51.endm
52
53/*
54 * LDR (ZT0)
55 *
56 *	LDR ZT0, nx
57 */
58.macro _ldr_zt nx
59	.inst	0xe11f8000			\
60		| (((\nx) & 0x1f) << 5)
61.endm
62
63/*
64 * STR (ZT0)
65 *
66 *	STR ZT0, nx
67 */
68.macro _str_zt nx
69	.inst	0xe13f8000			\
70		| (((\nx) & 0x1f) << 5)
71.endm
72
73#endif