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 bdf044c5d11b6dd68d21fa06410221c58fc42f97..e5da8848b66b54e797bc21879fa0edb15fe58c09 100644 (file)
--- 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