Port graphics drivers from Linux 6.11

[alice-sowerby]

User Story

As a user already running a desktop on FreeBSD, I want to be able to upgrade the GPU drivers to the ones ported from Linux 6.11 and still have a working desktop environment:

• I can use a vt(4) session
• I can use my X.Org/Wayland session
• I can play games
• I can watch videos, possibly with hardware-assisted decoding
• I can suspend and resume the computer

GPGPU is out of scope because it is not actively worked on.

Implementation Notes

The work is tracked in freebsd/drm-kmod#422..

In-progress review

Patches to freebsd-src were submitted for review on Phabricator:

• https://reviews.freebsd.org/D55176
• https://reviews.freebsd.org/D55729
• https://reviews.freebsd.org/D55730
• https://reviews.freebsd.org/D55731
• https://reviews.freebsd.org/D55732
• https://reviews.freebsd.org/D55733
• https://reviews.freebsd.org/D55734
• https://reviews.freebsd.org/D55735
• https://reviews.freebsd.org/D55736
• https://reviews.freebsd.org/D55737
• https://reviews.freebsd.org/D55738
• https://reviews.freebsd.org/D55739
• https://reviews.freebsd.org/D55740
• https://reviews.freebsd.org/D56282

Acceptance Criteria

• No regressions: if a desktop environment worked with the drivers available in ports/packages, it should continue to work with the drivers from Linux 6.11
• (optional) An unsupported GPU starts to work

Discussion thread

https://lists.freebsd.org/archives/freebsd-desktop/2025-March/005619.html

[dumbbell]

Here is the Phoronix article that sums up the DRM-specific changes published in Linux 6.11:
https://www.phoronix.com/news/Linux-6.11-DRM-Graphics-Drivers

[emaste]

Also this is reportedly the first version with support for the Ryzen 300 AI CPUs in the contemporary Framework laptops. Although there are important bug fixes through at least 6.14 it will be very good to have initial support.

[christosmarg]

Working on this.

[emaste]

We'll have to figure out what we're going to do with Xe graphics, perhaps we want to start importing the files even if we're not building them yet.

There are some licensing concerns to sort out though.

GPL-2.0 AND MIT - probably an oversight and should be OR MIT, but they're tests and could be excluded anyway:

drivers/gpu/drm/xe/tests/xe_bo.c
drivers/gpu/drm/xe/tests/xe_dma_buf.c
drivers/gpu/drm/xe/tests/xe_gt_sriov_pf_config_kunit.c
drivers/gpu/drm/xe/tests/xe_guc_buf_kunit.c
drivers/gpu/drm/xe/tests/xe_guc_db_mgr_test.c
drivers/gpu/drm/xe/tests/xe_guc_g2g_test.c
drivers/gpu/drm/xe/tests/xe_guc_id_mgr_test.c
drivers/gpu/drm/xe/tests/xe_guc_relay_test.c
drivers/gpu/drm/xe/tests/xe_kunit_helpers.c
drivers/gpu/drm/xe/tests/xe_kunit_helpers.h
drivers/gpu/drm/xe/tests/xe_lmtt_test.c
drivers/gpu/drm/xe/tests/xe_mocs.c
drivers/gpu/drm/xe/tests/xe_pci.c
drivers/gpu/drm/xe/tests/xe_pci_test.h
drivers/gpu/drm/xe/tests/xe_sriov_pf_service_kunit.c
drivers/gpu/drm/xe/tests/xe_test.h

GPL-2.0-only:

drivers/gpu/drm/xe/.gitignore
drivers/gpu/drm/xe/Kconfig
drivers/gpu/drm/xe/Kconfig.debug
drivers/gpu/drm/xe/Kconfig.profile
drivers/gpu/drm/xe/xe_pt_walk.c
drivers/gpu/drm/xe/xe_pt_walk.h
drivers/gpu/drm/xe/xe_trace.c
drivers/gpu/drm/xe/xe_trace.h
drivers/gpu/drm/xe/xe_trace_bo.c
drivers/gpu/drm/xe/xe_trace_bo.h
drivers/gpu/drm/xe/xe_trace_guc.c
drivers/gpu/drm/xe/xe_trace_guc.h
drivers/gpu/drm/xe/xe_trace_lrc.c
drivers/gpu/drm/xe/xe_trace_lrc.h

GPL-2.0:

drivers/gpu/drm/xe/Makefile
drivers/gpu/drm/xe/tests/Makefile
drivers/gpu/drm/xe/tests/xe_args_test.c
drivers/gpu/drm/xe/tests/xe_live_test_mod.c
drivers/gpu/drm/xe/tests/xe_pci_test.c
drivers/gpu/drm/xe/tests/xe_rtp_test.c
drivers/gpu/drm/xe/tests/xe_test_mod.c
drivers/gpu/drm/xe/tests/xe_wa_test.c
drivers/gpu/drm/xe/xe_vsec.c
drivers/gpu/drm/xe/xe_vsec.h

unknown

drivers/gpu/drm/xe/.kunitconfig
drivers/gpu/drm/xe/xe_device_wa_oob.rules
drivers/gpu/drm/xe/xe_wa_oob.rules