From: Marc Zyngier <maz@kernel.org>
Date: Thu, 31 Oct 2024 08:42:11 +0000 (+0000)
Subject: arm64: sysreg: Add ID_AA64ISAR1_EL1.LS64 encoding for FEAT_LS64WB
X-Git-Tag: v6.16-rc1~129^2~2^2~3^2~42
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2030396dac5f564ec85422ceb4327fcdb0054f83;p=thirdparty%2Fkernel%2Flinux.git

arm64: sysreg: Add ID_AA64ISAR1_EL1.LS64 encoding for FEAT_LS64WB

The 2024 extensions are adding yet another variant of LS64
(aptly named FEAT_LS64WB) supporting LS64 accesses to write-back
memory, as well as 32 byte single-copy atomic accesses using pairs
of FP registers.

Add the relevant encoding to ID_AA64ISAR1_EL1.LS64.

Reviewed-by: Joey Gouly <joey.gouly@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
---

diff --git a/arch/arm64/tools/sysreg b/arch/arm64/tools/sysreg
index bdf044c5d11b6..e5da8848b66b5 100644
--- a/arch/arm64/tools/sysreg
+++ b/arch/arm64/tools/sysreg
@@ -1466,6 +1466,7 @@ UnsignedEnum	63:60	LS64
 	0b0001	LS64
 	0b0010	LS64_V
 	0b0011	LS64_ACCDATA
+	0b0100	LS64WB
 EndEnum
 UnsignedEnum	59:56	XS
 	0b0000	NI