Page MenuHomeFreeBSD
Differential D56438

linuxkpi: Add more `struct folio`-related functions
Needs RevisionPublic
Actions

Authored by dumbbell on Thu, Apr 16, 8:58 PM.
Tags
None
Referenced Files
F153497844: D56438.diff
Tue, Apr 21, 11:41 AM
Unknown Object (File)
Mon, Apr 20, 7:40 PM
Unknown Object (File)
Mon, Apr 20, 3:10 AM
Unknown Object (File)
Sun, Apr 19, 8:26 AM
Unknown Object (File)
Sat, Apr 18, 9:46 AM
Unknown Object (File)
Sat, Apr 18, 6:14 AM
Unknown Object (File)
Sat, Apr 18, 6:12 AM
Subscribers
bz
emaste
imp
jhb

Details

Reviewers
bz
Group Reviewers
linuxkpi
Summary

The i915 DRM driver started to replace the use of struct page by struct folio in its GEM shmem code in Linux 6.12. linuxkpi were missing a few more functions: kmap_local_folio(), memcpy_to_folio() and offset_in_folio(). They are equivalent of their struct page counterparts.

One difference is that kmap_local_folio() takes an offset argument and the returned address takes this offset into account.

This is part of the update of DRM drivers to Linux 6.12.

Sponsored by: The FreeBSD Foundation

Diff Detail

Lint
Lint Skipped
Unit
Tests Skipped

Event Timeline

dumbbell created this revision.Thu, Apr 16, 8:58 PM
Herald added subscribers: emaste, imp. · View Herald TranscriptThu, Apr 16, 8:58 PM
dumbbell requested review of this revision.Thu, Apr 16, 8:58 PM
dumbbell added a parent revision: D56437: linuxkpi: Define `sort_r()`.Thu, Apr 16, 9:27 PM
dumbbell added a child revision: D56440: linuxkpi: Define `fd_file()`.
bz requested changes to this revision.Mon, Apr 20, 9:51 PM
bz added a subscriber: bz.

I wonder when it'll bite us that we implement folio using page and not page using folio...

sys/compat/linuxkpi/common/include/linux/highmem.h
106

char *vaddr;

as per https://lists.freebsd.org/archives/freebsd-arch/2026-March/001270.html

110

I'd also remove the empty line.

This revision now requires changes to proceed.Mon, Apr 20, 9:51 PM
bz added a subscriber: jhb.Mon, Apr 20, 9:51 PM

Revision Contents
Changeset List

PathSize
sys/
compat/
linuxkpi/
common/
include/
linux/
23 lines
1 line

Diff 175702

View Options

sys/compat/linuxkpi/common/include/linux/highmem.h

Loading...
View Options

sys/compat/linuxkpi/common/include/linux/mm.h

Loading...