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Add updating entry for DRM

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Update messaging for which drm module to install. Add guidance on what
hardware is supported (which should be copied into the release
notes). Note: the in tree drivers are abandonware. There has been no
organized support for them for many years, and the plan is to still
remove them for all but arm once the transition to drm-*kmod is
complete. Also note that WITHOUT_MODULE_DRM and WITHOUT_MODULE_DRM2
should generally be added to src.conf for anybody using the drm-*kmod
ports. That will become default in 13 soon, however.

Approved by: FreeBSD Graphics Team
Relnotes: Yes
MFC After: 3 days
Differential Revision: https://reviews.freebsd.org/D17451
This commit is contained in:
Warner Losh 2018-10-20 19:14:46 +00:00
parent 93806cf9e5
commit 468002c56c
2 changed files with 27 additions and 2 deletions
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25
UPDATING
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@ -31,6 +31,31 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 13.x IS SLOW:
disable the most expensive debugging functionality run
"ln -s 'abort:false,junk:false' /etc/malloc.conf".)
20181015:
Ports for the DRM modules have been simplified. Now, amd64 users should
just install the drm-kmod port. All others should install
drm-legacy-kmod.
Graphics hardware that's newer than about 2010 usually works with
drm-kmod. For hardware older than 2013, however, some users will need
to use drm-legacy-kmod if drm-kmod doesn't work for them. Hardware older
than 2008 usually only works in drm-legacy-kmod. The graphics team can
only commit to hardware made since 2013 due to the complexity of the
market and difficulty to test all the older cards effectively. If you
have hardware supported by drm-kmod, you are strongly encouraged to use
that as you will get better support.
Other than KPI chasing, drm-legacy-kmod will not be updated. As outlined
elsewhere, the drm and drm2 modules will be eliminated from the src base
soon (with a limited exception for arm). Please update to the package asap
and report any issues to x11@freebsd.org.
Generally, anybody using the drm*-kmod packages should add
WITHOUT_DRM_MODULE=t and WITHOUT_DRM2_MODULE=t to avoid nasty
cross-threading surprises, especially with automatic driver
loading from X11 startup. These will become the defaults in 13-current
shortly.
20181009:
OpenSSL has been updated to version 1.1.1. This update included
additional various API changes througout the base system. It is

4
sys/dev/drm2/drm_os_freebsd.h
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@ -154,8 +154,8 @@ typedef void irqreturn_t;
*(volatile u_int64_t *)(((vm_offset_t)(map)->handle) + \
(vm_offset_t)(offset)) = htole64(val)
#ifdef __LP64__
#define DRM_PORT "graphics/drm-stable-kmod"
#ifdef amd64
#define DRM_PORT "graphics/drm-kmod"
#else
#define DRM_PORT "graphics/drm-legacy-kmod"
#endif