Pi Zero format boards that are supported.

It means a patch wont apply cleanly because directory is gone. Change of structure of source code.
Is it same code structure as patch just renamed drm2? I doubt it. You have to look. Follow the crumbs....
 
By crumbs I mean the patches. They give file names and line numbers of code. You cross reference that info with the newer source tree ./drm2 directory.
Do any of the patch files exist in ./drm2 ???
If not do a search of source tree for the patched file name. See if was moved somewhere else.
 
it does not work probably because current was 14.x back then and diffs do not apply
Code: 
[titus@z ~/builds]$ git clone https://github.com/freebsd/freebsd-src.git
Cloning into 'freebsd-src'...
remote: Enumerating objects: 5197123, done.
remote: Counting objects: 100% (1819/1819), done.
remote: Compressing objects: 100% (807/807), done.
remote: Total 5197123 (delta 1327), reused 1044 (delta 1011), pack-reused 5195304 (from 3)
Receiving objects: 100% (5197123/5197123), 3.01 GiB | 30.71 MiB/s, done.
Resolving deltas: 100% (3556376/3556376), done.
Updating files: 100% (103542/103542), done.
[titus@z ~/builds]$ cd freebsd-src/
[titus@z ~/builds/freebsd-src]$ git checkout -b drm-base-subtree
Switched to a new branch 'drm-base-subtree'
[titus@z ~/builds/freebsd-src]$ git remote add drm-subtree https://github.com/evadot/drm-subtree.git
[titus@z ~/builds/freebsd-src]$ git subtree add --prefix sys/dev/drm/ drm-subtree master
git fetch drm-subtree master
remote: Enumerating objects: 2189, done.
remote: Counting objects: 100% (286/286), done.
remote: Compressing objects: 100% (57/57), done.
remote: Total 2189 (delta 252), reused 235 (delta 229), pack-reused 1903 (from 1)
Receiving objects: 100% (2189/2189), 1.49 MiB | 17.48 MiB/s, done.
Resolving deltas: 100% (1440/1440), done.
From https://github.com/evadot/drm-subtree
 * branch                      master     -> FETCH_HEAD
 * [new branch]                master     -> drm-subtree/master
Added dir 'sys/dev/drm'
[titus@z ~/builds/freebsd-src]$ git am sys/dev/drm/extra_patches/*.patch
Applying: Hook DRM to the build
error: patch failed: sys/conf/kern.pre.mk:309
error: sys/conf/kern.pre.mk: patch does not apply
error: patch failed: sys/conf/options:101
error: sys/conf/options: patch does not apply
Patch failed at 0001 Hook DRM to the build
hint: Use 'git am --show-current-patch=diff' to see the failed patch
 
Code: 
# git am --show-current-patch=diff
---
 sys/arm64/conf/GENERIC-DRM | 21 +++++++++++++++++++++
 sys/conf/kern.pre.mk       | 15 +++++++++++++++
 sys/conf/options           |  1 +
 3 files changed, 37 insertions(+)
 create mode 100644 sys/arm64/conf/GENERIC-DRM

diff --git a/sys/arm64/conf/GENERIC-DRM b/sys/arm64/conf/GENERIC-DRM
new file mode 100644
index 000000000000..db1fffb1729e
--- /dev/null
+++ b/sys/arm64/conf/GENERIC-DRM
@@ -0,0 +1,21 @@
+#
+# GENERIC-DRM
+#
+# Custom kernel for arm64 plus DRM
+#
+# $FreeBSD$
+
+#NO_UNIVERSE
+
+include                GENERIC
+ident          GENERIC-DRM
+
+# DRM Support
+options                COMPAT_DRMKPI
+options                COMPAT_LINUXKPI
+
+device         drm
+device         aw_de2_drm
+device         dw_hdmi
+files          "../../dev/drm/extra_patches/files"
+files          "../../dev/drm/extra_patches/files.aw"
diff --git a/sys/conf/kern.pre.mk b/sys/conf/kern.pre.mk
index 5a786c81324d..d7b041148e0e 100644
--- a/sys/conf/kern.pre.mk
+++ b/sys/conf/kern.pre.mk
@@ -309,6 +309,21 @@ MLXFW_C=   ${OFED_C_NOIMP} \
                -I${SRCTOP}/sys/contrib/xz-embedded/linux/lib/xz \
                ${.IMPSRC}
 
+# DRM C flags.
+DRM_INCLUDES+= -I${S}/dev/drm/core/include
+DRM_INCLUDES+= -I${S}/dev/drm/core/include/uapi
+DRM_INCLUDES+= -I${S}/dev/drm/drmkpi/include/
+
+DRM_CFLAGS=    ${CFLAGS} ${DRM_INCLUDES}
+DRM_CFLAGS+=   -include ${S}/dev/drm/drmkpi/include/drm/drm_os_freebsd.h
+DRM_CFLAGS+=   '-DKBUILD_MODNAME="DRMv5.6"'
+DRM_CFLAGS+=   -Wno-cast-qual -Wno-pointer-arith -Wno-missing-prototypes
+# Complain about unsigned long long versus uint64_t, remove -Wformat for now
+.if ${MACHINE_CPUARCH} == "aarch64"
+DRM_CFLAGS+=   -Wno-format
+.endif
+DRM_C=         ${CC} -c ${DRM_CFLAGS} ${WERROR} ${PROF} ${.IMPSRC}
+
 GEN_CFILES= $S/$M/$M/genassym.c ${MFILES:T:S/.m$/.c/}
 SYSTEM_CFILES= config.c env.c hints.c vnode_if.c
 SYSTEM_DEP= Makefile ${SYSTEM_OBJS}
diff --git a/sys/conf/options b/sys/conf/options
index c66b94ce2efd..aea8083927cc 100644
--- a/sys/conf/options
+++ b/sys/conf/options
@@ -101,6 +101,7 @@ COMPAT_FREEBSD12    opt_global.h
 COMPAT_FREEBSD13       opt_global.h
 COMPAT_LINUXKPI        opt_dontuse.h
 _COMPAT_LINUX32        opt_compat.h    # XXX: make sure opt_compat.h exists
+COMPAT_DRMKPI  opt_global.h
 COMPILING_LINT opt_global.h
 CY_PCI_FASTINTR
 DEADLKRES      opt_watchdog.h
--
2.35.1
(END)
 
What this code means ?

Code: 
+++ b/sys/conf/options
@@ -101,6 +101,7 @@ COMPAT_FREEBSD12
opt_global.h  COMPAT_FREEBSD13       opt_global.h

I read FreeBSD 13 as the latest. And 13 is compatible with the latest changes made on the repo (3 years ago).
 
ZioMario said:
What this code means ?

Code: 
+++ b/sys/conf/options
@@ -101,6 +101,7 @@ COMPAT_FREEBSD12
opt_global.h  COMPAT_FREEBSD13       opt_global.h

I read FreeBSD 13 as the latest. And 13 is compatible with the latest changes made on the repo (3 years ago).
Click to expand...
COMPAT_FREEBSD* are for enabling backward compatibilities support in kernel with the specified release (here 13). 32 has a specific meaning other than (still nonexistent) release, but 32bit compatibilities.
See here for stable/14, arm64.
 
I have the RockPro RK3399 and the Radxa Zero 3W,both have a recent MALI gpu. So I will try with these boards and the 14.1. If it works,I will try to upgrade 14.1 to 14.3 ?
 
Compilation stopped again here,even using "portmaster www/chromium ":

pkg-static: unable to access file /usr/ports/www/node22/work/stage/usr/local/include/node/openssl/quic.h : no such file or directory.
 
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