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Differential D48577

arm64: fix ID_AA64ISAR2_WFxT_IMPL value
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Authored by harry.moulton_arm.com on Jan 21 2025, 3:19 PM.
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andrew
manu
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arm64
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rG4e3831c66d00: arm64: fix ID_AA64ISAR2_WFxT_IMPL value
Summary

Bits 3:0 of ID_AA64ISAR2_EL1 are reserved for FEAT_WFxT in ARMv8.7, with
bit 1 used to determine whether the feature is supported. The macro,
ID_AA64ISAR2_WFxT_IMPL can be used to check if this bit is set, however
it is currently incorrectly set to check bit 0. This has now been
corrected.

Sponsored by: Arm Ltd
Signed-off-by: Harry Moulton <harry.moulton@arm.com>

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rG FreeBSD src repository
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Buildable 61865
Build 58749: arc lint + arc unit

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sys/
arm64/
include/
2 lines

Diff 149666

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sys/arm64/include/armreg.h

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