arm64: Use the _REG macros to read ID registers
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Authored by andrew on May 13 2024, 3:23 PM.

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Reviewers

manu
zachary.leaf_arm.com

Group Reviewers

arm64

Commits

rGdd701489c80c: arm64: Use the _REG macros to read ID registers
rGcd3681011001: arm64: Use the _REG macros to read ID registers

Summary

To build with old toolchains use the *_REG macros to access the ID
registers. These become a name in the form S?_?_C?_C?_? where the '?'
values encode the op and CR values needed to access the register.

For consistency use these macros for all ID registers, even if most
toolchains understand them.

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Repository

rG FreeBSD src repository

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Build Status

Buildable 57681
Build 54569: arc lint + arc unit

Event Timeline

andrew created this revision.May 13 2024, 3:23 PM

Herald added a reviewer: manu. · View Herald TranscriptMay 13 2024, 3:23 PM

Herald added subscribers: emaste, imp. · View Herald Transcript

andrew requested review of this revision.May 13 2024, 3:23 PM

Harbormaster completed remote builds in B57681: Diff 138476.May 13 2024, 3:23 PM

andrew added a parent revision: D45176: arm64: Add MRS_REG_ALT_NAME ID register macros.May 13 2024, 3:23 PM

zachary.leaf_arm.com accepted this revision as: zachary.leaf_arm.com.May 14 2024, 1:03 PM

This revision is now accepted and ready to land.May 14 2024, 1:03 PM

Closed by commit rGcd3681011001: arm64: Use the _REG macros to read ID registers (authored by andrew). · Explain WhyMay 17 2024, 10:23 AM

This revision was automatically updated to reflect the committed changes.

andrew added a commit: rGcd3681011001: arm64: Use the _REG macros to read ID registers.

andrew added a commit: rGdd701489c80c: arm64: Use the _REG macros to read ID registers.Jul 15 2024, 12:40 PM

Revision Contents
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sys/

arm64/

identcpu.c

46 lines

Diff 138476

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sys/arm64/arm64/identcpu.c

arm64: Use the _REG macros to read ID registersClosedPublicActions