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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/tools/testing/selftests/arm64/fp/sme-inst.h
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// SPDX-License-Identifier: GPL-2.0-only

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// Copyright (C) 2021-2 ARM Limited.

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// Original author: Mark Brown <[email protected]>

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#ifndef SME_INST_H

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#define SME_INST_H

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#define REG_FPMR                                        S3_3_C4_C4_2

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/*

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 * RDSVL X\nx, #\imm

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 */

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.macro rdsvl nx, imm

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	.inst	0x4bf5800			\

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		| (\imm << 5)			\

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		| (\nx)

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.endm

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.macro smstop

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	msr	S0_3_C4_C6_3, xzr

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.endm

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.macro smstart_za

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	msr	S0_3_C4_C5_3, xzr

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.endm

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.macro smstart_sm

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	msr	S0_3_C4_C3_3, xzr

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.endm

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/*

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 * LDR (vector to ZA array):

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 *	LDR ZA[\nw, #\offset], [X\nxbase, #\offset, MUL VL]

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 */

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.macro _ldr_za nw, nxbase, offset=0

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	.inst	0xe1000000			\

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		| (((\nw) & 3) << 13)		\

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		| ((\nxbase) << 5)		\

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		| ((\offset) & 7)

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.endm

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/*

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 * STR (vector from ZA array):

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 *	STR ZA[\nw, #\offset], [X\nxbase, #\offset, MUL VL]

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 */

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.macro _str_za nw, nxbase, offset=0

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	.inst	0xe1200000			\

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		| (((\nw) & 3) << 13)		\

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		| ((\nxbase) << 5)		\

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		| ((\offset) & 7)

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.endm

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/*

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 * LDR (ZT0)

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 *

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 *	LDR ZT0, nx

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 */

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.macro _ldr_zt nx

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	.inst	0xe11f8000			\

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		| (((\nx) & 0x1f) << 5)

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.endm

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/*

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 * STR (ZT0)

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 *

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 *	STR ZT0, nx

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 */

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.macro _str_zt nx

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	.inst	0xe13f8000			\

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		| (((\nx) & 0x1f) << 5)

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.endm

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#endif

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