Page MenuHomeFreeBSD
Differential D48884

riscv: enable EFI framebuffer
ClosedPublic
Actions

Authored by mhorne on Feb 7 2025, 4:16 PM.
Tags
None
Referenced Files
Unknown Object (File)
Wed, Dec 17, 6:55 PM
Unknown Object (File)
Fri, Dec 5, 11:08 PM
Unknown Object (File)
Fri, Nov 21, 7:05 PM
Unknown Object (File)
Fri, Nov 21, 7:03 PM
Unknown Object (File)
Fri, Nov 21, 7:01 PM
Unknown Object (File)
Fri, Nov 21, 6:56 PM
Unknown Object (File)
Nov 12 2025, 8:55 PM
Unknown Object (File)
Nov 1 2025, 7:07 AM
View All 67 Files
Subscribers
bcran
dab
imp

Details

Reviewers
kevans
emaste
manu
Group Reviewers
riscv
Commits
rGe2a08ac9ce42: riscv: enable EFI framebuffer
Summary

Pass framebuffer information from loader(8) to the kernel via the
MODINFOMD_EFI_FB metadata field.

Enable the vt_efifb driver. A small tweak is required to work around the
lack of VM_MEMATTR_WRITE_COMBINING on this platform; we use
VM_MEMATTR_UNCACHEABLE instead.

Test Plan

Tested with the RVVM simulator. We are missing input drivers required for the graphical mode, but the framebuffer works.

Diff Detail

Repository
rG FreeBSD src repository
Lint
Lint Skipped
Unit
Tests Skipped
Build Status
Buildable 62291
Build 59175: arc lint + arc unit

Event Timeline

mhorne created this revision.Feb 7 2025, 4:16 PM
Herald added a reviewer: manu. · View Herald TranscriptFeb 7 2025, 4:16 PM
Herald added subscribers: dab, bcran, imp. · View Herald Transcript
mhorne requested review of this revision.Feb 7 2025, 4:16 PM
Harbormaster completed remote builds in B62291: Diff 150680.Feb 7 2025, 4:16 PM
mhorne edited the test plan for this revision. (Show Details)Feb 7 2025, 4:17 PM
mhorne added a child revision: D48887: riscv/stand: pass boot hart in loader metadata.Feb 7 2025, 4:22 PM
This revision was not accepted when it landed; it landed in state Needs Review.Mar 3 2025, 4:12 PM
Closed by commit rGe2a08ac9ce42: riscv: enable EFI framebuffer (authored by mhorne). · Explain Why
This revision was automatically updated to reflect the committed changes.
mhorne added a commit: rGe2a08ac9ce42: riscv: enable EFI framebuffer.

Revision Contents
Changeset List

PathSize
stand/
efi/
loader/
2 lines
sys/
dev/
vt/
hw/
efifb/
9 lines
riscv/
conf/
1 line
include/
1 line

Diff 150680

View Options

stand/efi/loader/bootinfo.c

Loading...
View Options

sys/dev/vt/hw/efifb/efifb.c

Loading...
View Options

sys/riscv/conf/GENERIC

Loading...
View Options

sys/riscv/include/metadata.h

Loading...