Page MenuHomeFreeBSD
Differential D48124

riscv: enable cpufreq_dt driver
ClosedPublic
Actions

Authored by mhorne on Dec 17 2024, 8:10 PM.
Tags
None
Referenced Files
Unknown Object (File)
Sat, Mar 21, 8:27 AM
Unknown Object (File)
Sat, Mar 21, 7:44 AM
Unknown Object (File)
Sat, Mar 21, 5:33 AM
Unknown Object (File)
Fri, Mar 20, 7:28 AM
Unknown Object (File)
Fri, Mar 20, 7:28 AM
Unknown Object (File)
Thu, Mar 19, 8:22 AM
Unknown Object (File)
Wed, Mar 18, 8:26 AM
Unknown Object (File)
Thu, Mar 12, 4:00 PM
View All 72 Files
Subscribers
imp

Details

Reviewers
andrew
Group Reviewers
riscv
Commits
rGdef7999c2ccd: riscv: enable cpufreq_dt driver
Summary

Implement the small amount of MD code required; copied from arm/arm64.

One tweak is made to cpufreq_dt itself: if the opp-shared property is
missing, but there is only one CPU, then we can still attach. This is
relevant for the single-core Allwinner D1.

Test Plan

Tested on the Allwinner D1 and VisionFive v2 (JH7110) SBCs.

CPUs can have their frequency toggled via sysctl, or powerd -a max. I did not verify the effects, but all the machinery appears to be working.

Diff Detail

Repository
rG FreeBSD src repository
Lint
Lint Not Applicable
Unit
Tests Not Applicable

Event Timeline

mhorne created this revision.Dec 17 2024, 8:10 PM
Herald added a reviewer: andrew. · View Herald TranscriptDec 17 2024, 8:10 PM
Herald added a subscriber: imp. · View Herald Transcript
mhorne requested review of this revision.Dec 17 2024, 8:10 PM
Harbormaster completed remote builds in B61221: Diff 148176.Dec 17 2024, 8:11 PM
mhorne edited the test plan for this revision. (Show Details)Dec 17 2024, 8:17 PM
This revision was not accepted when it landed; it landed in state Needs Review.Jan 10 2025, 7:19 PM
Closed by commit rGdef7999c2ccd: riscv: enable cpufreq_dt driver (authored by mhorne). · Explain Why
This revision was automatically updated to reflect the committed changes.
mhorne added a commit: rGdef7999c2ccd: riscv: enable cpufreq_dt driver.

Revision Contents
Changeset List

PathSize
sys/
conf/
1 line
dev/
cpufreq/
2 lines
riscv/
conf/
3 lines
include/
3 lines
riscv/
12 lines

Diff 149091

View Options

sys/conf/files.riscv

Loading...
View Options

sys/dev/cpufreq/cpufreq_dt.c

Loading...
View Options

sys/riscv/conf/GENERIC

Loading...
View Options

sys/riscv/include/pcpu.h

Loading...
View Options

sys/riscv/riscv/machdep.c

Loading...