tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
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