x11-drivers/nvidia-drivers: add 470.62.26:0/vulkan

Also EAPI=8 and sync NV_PIN with latest 470 (this is not actively
tested for masked 0/vulkan, please report if issues).

Signed-off-by: Ionen Wolkens <ionen@gentoo.org>

2 files changed, 446 insertions, 0 deletions

diff --git a/x11-drivers/nvidia-drivers/Manifest b/x11-drivers/nvidia-drivers/Manifest
index 10b90ffdb366..38caffb56bf8 100644
--- a/x11-drivers/nvidia-drivers/Manifest
+++ b/x11-drivers/nvidia-drivers/Manifest
@@ -4,6 +4,7 @@ DIST NVIDIA-Linux-x86-390.147.run 49303088 BLAKE2B 5a3a02b88af1ee8699b0c6c3fa222
 DIST NVIDIA-Linux-x86_64-390.147.run 85930997 BLAKE2B a8085c9abc1c31251788a8f5abdc2090c9085b3028e364184244bbf24d822dc3266877c88b30f403507fa2dd511c68ec67e1f188d6b0f1f4d7d792881d5253fc SHA512 0d8bda32e916d71da2ea74bc12a4f3cb0a0c2ddda27511cf3c89bbf4aeb28db68f6b7261639d88dd1c0180b91213c09de930d233158268c5d9ab3b223510e964
 DIST NVIDIA-Linux-x86_64-470.103.01.run 272484410 BLAKE2B 42a19ed990f49d4ceefc1006f3e6e4b69135ad2aaf497c648b9afe7941a81aba3a51296cb14bc419352cdf70f850484d2a55784184fdb820186193501422d742 SHA512 3dc19774a6fef5e6ec0cb9451df4268f77cb31b0a9ede253bf9cf805a048ad457a7bfec852aaeab3e3e297b3353840a3d6c9c7ddc75d57b2b000ab4e0b15530b
 DIST NVIDIA-Linux-x86_64-470.62.22.run 272128606 BLAKE2B 727aac085a73c4c953ddb58a5b887b70eb65b5b89cdd556d122d89d351444fbed0adfa3c34627a9ab0d13c42ac93732d9fa023e580894117dd0c06098b386208 SHA512 9e9f6a665034495bbfd438567fb9a0998adbfcc979fd1e0370d355b4f312e4c1fb5162b15e5264cc89d3aca6dcaf84ce7ebfff0885ac783dfcd8be3b99b3b96f
+DIST NVIDIA-Linux-x86_64-470.62.26.run 272619538 BLAKE2B dd68260661473b5d6a10be42eac376d662e9656ab63b24442f8aab4f7bfd916f6255650f931334fedb3c3023acbd2512a9bbaf698a01a0c3ea40d7eee84014bc SHA512 13cd30cea4c7390ea7e0c0a41842258b488082b358b0d9a13c21637b79efe470ae6ee4e86902ba81d01cb6be0700449c6f545d87aca2708f62be22530d41b693
 DIST NVIDIA-Linux-x86_64-510.54.run 328899755 BLAKE2B b83ebb1c978f902812d7dae2170eadfa1d52d36dc1e9ed61001c0483743ad8094268f101a4414353936339a4d064d54ad41cc229906ee7dbef3aa56af5315764 SHA512 1e65e96c1ae1cccd5cd483f2b65927e3594d28f3774459dfd094530f445f4b0f5368a3b7eebf4970bd2632438cca2cbb93af50a59a3a87a2c13d08ed5155164c
 DIST NVIDIA-Linux-x86_64-510.60.02.run 328284028 BLAKE2B 9165e4763a34c3cf474c18dae7d2c548bb6d4edc21507afe67d046959e9f3fb758cf507dcdffcfbc0bf70cf2b677a193429127b3fe589af329fe6a671ac51e6f SHA512 ccc459bdf5f89a37f79a1831bac8c03980deaa13082b516d5e9c74a49e1aea7f1f6b03304705a95564a390bf0ca38df10b8c8b73e3470a31444dd5ebfd981cfd
 DIST nvidia-installer-390.147.tar.bz2 150157 BLAKE2B 3bf5317aaa3bdb0e6dc3b3e21ad3dbacf6dc782a643b0fa9badf354361891ab25660b57dd408e346f219d469af317a4851937e1cb77ffe59a39e9d98a92f3a40 SHA512 24bd8a2959062551abf2ea039ac95eba224d58c175f59f1386a6d43459ad43b2bddf17f00b53c1c71c45eca3b7a2281dcf05cc65030f6f8bed16d0f0b9f9c282
diff --git a/x11-drivers/nvidia-drivers/nvidia-drivers-470.62.26.ebuild b/x11-drivers/nvidia-drivers/nvidia-drivers-470.62.26.ebuild
new file mode 100644
index 000000000000..3b539a6e7020
--- /dev/null
+++ b/x11-drivers/nvidia-drivers/nvidia-drivers-470.62.26.ebuild
@@ -0,0 +1,445 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+MODULES_OPTIONAL_USE="driver"
+inherit desktop flag-o-matic linux-mod multilib readme.gentoo-r1 \
+	systemd toolchain-funcs unpacker
+
+NV_KERNEL_MAX="5.15"
+NV_PIN="470.103.01"
+
+DESCRIPTION="NVIDIA Accelerated Graphics Driver"
+HOMEPAGE="https://developer.nvidia.com/vulkan-driver"
+SRC_URI="
+	https://developer.nvidia.com/vulkan-beta-${PV//.}-linux -> NVIDIA-Linux-x86_64-${PV}.run
+	$(printf "https://download.nvidia.com/XFree86/%s/%s-${NV_PIN}.tar.bz2 " \
+		nvidia-{installer,modprobe,persistenced,settings,xconfig}{,})"
+# nvidia-installer is unused but here for GPL-2's "distribute sources"
+S="${WORKDIR}"
+
+LICENSE="NVIDIA-r2 BSD BSD-2 GPL-2 MIT ZLIB curl openssl"
+SLOT="0/vulkan"
+KEYWORDS="-* ~amd64"
+IUSE="+X abi_x86_32 abi_x86_64 +driver persistenced +static-libs +tools wayland"
+
+COMMON_DEPEND="
+	acct-group/video
+	sys-libs/glibc
+	persistenced? (
+		acct-user/nvpd
+		net-libs/libtirpc:=
+	)
+	tools? (
+		dev-libs/atk
+		dev-libs/glib:2
+		dev-libs/jansson:=
+		media-libs/harfbuzz:=
+		x11-libs/cairo
+		x11-libs/gdk-pixbuf:2
+		x11-libs/gtk+:3
+		x11-libs/libX11
+		x11-libs/libXext
+		x11-libs/libXxf86vm
+		x11-libs/pango
+	)"
+RDEPEND="
+	${COMMON_DEPEND}
+	X? (
+		media-libs/libglvnd[X,abi_x86_32(-)?]
+		x11-libs/libX11[abi_x86_32(-)?]
+		x11-libs/libXext[abi_x86_32(-)?]
+	)
+	wayland? (
+		~gui-libs/egl-wayland-1.1.7
+		media-libs/libglvnd
+	)"
+DEPEND="
+	${COMMON_DEPEND}
+	static-libs? (
+		x11-libs/libX11
+		x11-libs/libXext
+	)
+	tools? (
+		media-libs/libglvnd
+		sys-apps/dbus
+		x11-base/xorg-proto
+		x11-libs/libXrandr
+		x11-libs/libXv
+		x11-libs/libvdpau
+	)"
+BDEPEND="
+	sys-devel/m4
+	virtual/pkgconfig"
+
+QA_PREBUILT="lib/firmware/* opt/bin/* usr/lib*"
+
+PATCHES=(
+	"${FILESDIR}"/nvidia-modprobe-390.141-uvm-perms.patch
+	"${FILESDIR}"/nvidia-settings-390.144-desktop.patch
+	"${FILESDIR}"/nvidia-settings-390.144-no-gtk2.patch
+	"${FILESDIR}"/nvidia-settings-390.144-raw-ldflags.patch
+)
+
+pkg_setup() {
+	use driver || return
+
+	local CONFIG_CHECK="
+		PROC_FS
+		~DRM_KMS_HELPER
+		~SYSVIPC
+		~!LOCKDEP
+		~!SLUB_DEBUG_ON
+		!DEBUG_MUTEXES"
+	local ERROR_DRM_KMS_HELPER="CONFIG_DRM_KMS_HELPER: is not set but needed for Xorg auto-detection
+	of drivers (no custom config), and for wayland / nvidia-drm.modeset=1.
+	Cannot be directly selected in the kernel's menuconfig, and may need
+	selection of a DRM device even if unused, e.g. CONFIG_DRM_AMDGPU=m or
+	DRM_I915=y, DRM_NOUVEAU=m also acceptable if a module and not built-in."
+
+	use amd64 && kernel_is -ge 5 8 && CONFIG_CHECK+=" X86_PAT" #817764
+
+	MODULE_NAMES="
+		nvidia(video:kernel)
+		nvidia-drm(video:kernel)
+		nvidia-modeset(video:kernel)
+		nvidia-peermem(video:kernel)
+		nvidia-uvm(video:kernel)"
+
+	linux-mod_pkg_setup
+
+	[[ ${MERGE_TYPE} == binary ]] && return
+
+	BUILD_PARAMS='NV_VERBOSE=1 IGNORE_CC_MISMATCH=yes SYSSRC="${KV_DIR}" SYSOUT="${KV_OUT_DIR}"'
+	BUILD_TARGETS="modules"
+
+	if linux_chkconfig_present CC_IS_CLANG; then
+		ewarn "Warning: building ${PN} with a clang-built kernel is experimental"
+
+		BUILD_PARAMS+=' CC=${CHOST}-clang'
+		if linux_chkconfig_present LD_IS_LLD; then
+			BUILD_PARAMS+=' LD=ld.lld'
+			if linux_chkconfig_present LTO_CLANG_THIN; then
+				# kernel enables cache by default leading to sandbox violations
+				BUILD_PARAMS+=' ldflags-y=--thinlto-cache-dir= LDFLAGS_MODULE=--thinlto-cache-dir='
+			fi
+		fi
+	fi
+
+	if kernel_is -gt ${NV_KERNEL_MAX/./ }; then
+		ewarn "Kernel ${KV_MAJOR}.${KV_MINOR} is either known to break this version of ${PN}"
+		ewarn "or was not tested with it. It is recommended to use one of:"
+		ewarn "  <=sys-kernel/gentoo-kernel-${NV_KERNEL_MAX}.x"
+		ewarn "  <=sys-kernel/gentoo-sources-${NV_KERNEL_MAX}.x"
+		ewarn "You are free to try or use /etc/portage/patches, but support will"
+		ewarn "not be given and issues wait until NVIDIA releases a fixed version."
+		ewarn
+		ewarn "Do _not_ file a bug report if run into issues."
+		ewarn
+	fi
+}
+
+src_prepare() {
+	# make patches usable across versions
+	rm nvidia-modprobe && mv nvidia-modprobe{-${NV_PIN},} || die
+	rm nvidia-persistenced && mv nvidia-persistenced{-${NV_PIN},} || die
+	rm nvidia-settings && mv nvidia-settings{-${NV_PIN},} || die
+	rm nvidia-xconfig && mv nvidia-xconfig{-${NV_PIN},} || die
+
+	default
+
+	# prevent detection of incomplete kernel DRM support (bug #603818)
+	sed 's/defined(CONFIG_DRM/defined(CONFIG_DRM_KMS_HELPER/g' \
+		-i kernel/conftest.sh || die
+
+	sed 's/__USER__/nvpd/' \
+		nvidia-persistenced/init/systemd/nvidia-persistenced.service.template \
+		> "${T}"/nvidia-persistenced.service || die
+
+	# enable nvidia-drm.modeset=1 by default with USE=wayland
+	cp "${FILESDIR}"/nvidia-470.conf "${T}"/nvidia.conf || die
+	use !wayland || sed -i '/^#.*modeset=1$/s/^#//' "${T}"/nvidia.conf || die
+}
+
+src_compile() {
+	tc-export AR CC LD OBJCOPY
+
+	NV_ARGS=(
+		PREFIX="${EPREFIX}"/usr
+		HOST_CC="$(tc-getBUILD_CC)"
+		HOST_LD="$(tc-getBUILD_LD)"
+		NV_USE_BUNDLED_LIBJANSSON=0
+		NV_VERBOSE=1 DO_STRIP= MANPAGE_GZIP= OUTPUTDIR=out
+	)
+
+	use driver && linux-mod_src_compile
+
+	emake "${NV_ARGS[@]}" -C nvidia-modprobe
+	use persistenced && emake "${NV_ARGS[@]}" -C nvidia-persistenced
+	use X && emake "${NV_ARGS[@]}" -C nvidia-xconfig
+
+	if use tools; then
+		# cflags: avoid noisy logs, only use here and set first to let override
+		# ldflags: abi currently needed if LD=ld.lld
+		CFLAGS="-Wno-deprecated-declarations ${CFLAGS}" \
+			RAW_LDFLAGS="$(get_abi_LDFLAGS) $(raw-ldflags)" \
+			emake "${NV_ARGS[@]}" -C nvidia-settings
+	elif use static-libs; then
+		emake "${NV_ARGS[@]}" -C nvidia-settings/src out/libXNVCtrl.a
+	fi
+}
+
+src_install() {
+	local libdir=$(get_libdir) libdir32=$(ABI=x86 get_libdir)
+
+	NV_ARGS+=( DESTDIR="${D}" LIBDIR="${ED}"/usr/${libdir} )
+
+	local -A paths=(
+		[APPLICATION_PROFILE]=/usr/share/nvidia
+		[CUDA_ICD]=/etc/OpenCL/vendors
+		[EGL_EXTERNAL_PLATFORM_JSON]=/usr/share/egl/egl_external_platform.d
+		[FIRMWARE]=/lib/firmware/nvidia/${PV}
+		[GLVND_EGL_ICD_JSON]=/usr/share/glvnd/egl_vendor.d
+		[VULKAN_ICD_JSON]=/usr/share/vulkan
+		[WINE_LIB]=/usr/${libdir}/nvidia/wine
+		[XORG_OUTPUTCLASS_CONFIG]=/usr/share/X11/xorg.conf.d
+
+		[GLX_MODULE_SHARED_LIB]=/usr/${libdir}/xorg/modules/extensions
+		[GLX_MODULE_SYMLINK]=/usr/${libdir}/xorg/modules
+		[XMODULE_SHARED_LIB]=/usr/${libdir}/xorg/modules
+	)
+
+	local skip_files=(
+		# nvidia_icd/layers(vulkan): skip with -X too as it uses libGLX_nvidia
+		$(usev !X "
+			libGLX_nvidia libglxserver_nvidia
+			libnvidia-ifr
+			nvidia_icd.json nvidia_layers.json")
+		$(usev !wayland libnvidia-vulkan-producer)
+		libGLX_indirect # non-glvnd unused fallback
+		libnvidia-gtk nvidia-{settings,xconfig} # built from source
+		libnvidia-egl-wayland 10_nvidia_wayland # gui-libs/egl-wayland
+	)
+	local skip_modules=(
+		$(usev !X "nvfbc vdpau xdriver")
+		$(usev !driver gsp)
+		installer nvpd # handled separately / built from source
+	)
+	local skip_types=(
+		GLVND_LIB GLVND_SYMLINK EGL_CLIENT.\* GLX_CLIENT.\* # media-libs/libglvnd
+		OPENCL_WRAPPER.\* # virtual/opencl
+		DOCUMENTATION DOT_DESKTOP .\*_SRC DKMS_CONF # handled separately / unused
+	)
+
+	local DOCS=(
+		README.txt NVIDIA_Changelog supported-gpus/supported-gpus.json
+		nvidia-settings/doc/{FRAMELOCK,NV-CONTROL-API}.txt
+	)
+	local HTML_DOCS=( html/. )
+	einstalldocs
+
+	local DISABLE_AUTOFORMATTING=yes
+	local DOC_CONTENTS="\
+Trusted users should be in the 'video' group to use NVIDIA devices.
+You can add yourself by using: gpasswd -a my-user video\
+$(usev driver "
+
+Like all out-of-tree kernel modules, it is necessary to rebuild
+${PN} after upgrading or rebuilding the Linux kernel
+by for example running \`emerge @module-rebuild\`. Alternatively,
+if using a distribution kernel (sys-kernel/gentoo-kernel{,-bin}),
+this can be automated by setting USE=dist-kernel globally.
+
+Loaded kernel modules also must not mismatch with the installed
+${PN} version (excluding -r revision), meaning should
+ensure \`eselect kernel list\` points to the kernel that will be
+booted before building and preferably reboot after upgrading
+${PN} (the ebuild will emit a warning if mismatching).
+
+See '${EPREFIX}/etc/modprobe.d/nvidia.conf' for modules options.")\
+$(use amd64 && usev !abi_x86_32 "
+
+Note that without USE=abi_x86_32 on ${PN}, 32bit applications
+(typically using wine / steam) will not be able to use GPU acceleration.")
+
+For general information on using ${PN}, please see:
+https://wiki.gentoo.org/wiki/NVIDIA/nvidia-drivers"
+	readme.gentoo_create_doc
+
+	if use driver; then
+		linux-mod_src_install
+
+		insinto /etc/modprobe.d
+		doins "${T}"/nvidia.conf
+
+		# used for gpu verification with binpkgs (not kept, see pkg_preinst)
+		insinto /usr/share/nvidia
+		doins supported-gpus/supported-gpus.json
+	fi
+
+	emake "${NV_ARGS[@]}" -C nvidia-modprobe install
+	fowners :video /usr/bin/nvidia-modprobe #505092
+	fperms 4710 /usr/bin/nvidia-modprobe
+
+	if use persistenced; then
+		emake "${NV_ARGS[@]}" -C nvidia-persistenced install
+		newconfd "${FILESDIR}"/nvidia-persistenced.confd nvidia-persistenced
+		newinitd "${FILESDIR}"/nvidia-persistenced.initd nvidia-persistenced
+		systemd_dounit "${T}"/nvidia-persistenced.service
+	fi
+
+	if use tools; then
+		emake "${NV_ARGS[@]}" -C nvidia-settings install
+
+		doicon nvidia-settings/doc/nvidia-settings.png
+		domenu nvidia-settings/doc/nvidia-settings.desktop
+
+		exeinto /etc/X11/xinit/xinitrc.d
+		newexe "${FILESDIR}"/95-nvidia-settings-r1 95-nvidia-settings
+	fi
+
+	if use static-libs; then
+		dolib.a nvidia-settings/src/out/libXNVCtrl.a
+
+		insinto /usr/include/NVCtrl
+		doins nvidia-settings/src/libXNVCtrl/NVCtrl{Lib,}.h
+	fi
+
+	use X && emake "${NV_ARGS[@]}" -C nvidia-xconfig install
+
+	# mimic nvidia-installer by reading .manifest to install files
+	# 0:file 1:perms 2:type 3+:subtype/arguments -:module
+	local m into
+	while IFS=' ' read -ra m; do
+		! [[ ${#m[@]} -ge 2 && ${m[-1]} =~ MODULE: ]] ||
+			eval '[[ " ${m[0]##*/}" =~ ^(\ '${skip_files[*]/%/.*|\\}' )$ ]]' ||
+			eval '[[ " ${m[2]}" =~ ^(\ '${skip_types[*]/%/|\\}' )$ ]]' ||
+			has ${m[-1]#MODULE:} "${skip_modules[@]}" && continue
+
+		case ${m[2]} in
+			MANPAGE)
+				gzip -dc ${m[0]} | newman - ${m[0]%.gz}; assert
+				continue
+			;;
+			VDPAU_SYMLINK) m[4]=vdpau/; m[5]=${m[5]#vdpau/};; # .so to vdpau/
+		esac
+
+		if [[ -v paths[${m[2]}] ]]; then
+			into=${paths[${m[2]}]}
+		elif [[ ${m[2]} =~ _BINARY$ ]]; then
+			into=/opt/bin
+		elif [[ ${m[3]} == COMPAT32 ]]; then
+			use abi_x86_32 || continue
+			into=/usr/${libdir32}
+		elif [[ ${m[2]} =~ _LIB$|_SYMLINK$ ]]; then
+			into=/usr/${libdir}
+		else
+			die "No known installation path for ${m[0]}"
+		fi
+		[[ ${m[3]: -2} == ?/ ]] && into+=/${m[3]%/}
+		[[ ${m[4]: -2} == ?/ ]] && into+=/${m[4]%/}
+
+		if [[ ${m[2]} =~ _SYMLINK$ ]]; then
+			[[ ${m[4]: -1} == / ]] && m[4]=${m[5]}
+			dosym ${m[4]} ${into}/${m[0]}
+			continue
+		fi
+		[[ ${m[0]} =~ ^libnvidia-ngx.so ]] &&
+			dosym ${m[0]} ${into}/${m[0]%.so*}.so.1 # soname not in .manifest
+
+		printf -v m[1] %o $((m[1] | 0200)) # 444->644
+		insopts -m${m[1]}
+		insinto ${into}
+		doins ${m[0]}
+	done < .manifest || die
+
+	# MODULE:installer non-skipped extras
+	exeinto /lib/systemd/system-sleep
+	doexe systemd/system-sleep/nvidia
+	dobin systemd/nvidia-sleep.sh
+	systemd_dounit systemd/system/nvidia-{hibernate,resume,suspend}.service
+
+	dobin nvidia-bug-report.sh
+}
+
+pkg_preinst() {
+	has_version "${CATEGORY}/${PN}[abi_x86_32]" && NV_HAD_ABI32=
+	has_version "${CATEGORY}/${PN}[wayland]" && NV_HAD_WAYLAND=
+
+	use driver || return
+	linux-mod_pkg_preinst
+
+	# set video group id based on live system (bug #491414)
+	local g=$(getent group video | cut -d: -f3)
+	[[ ${g} ]] || die "Failed to determine video group id"
+	sed -i "s/@VIDEOGID@/${g}/" "${ED}"/etc/modprobe.d/nvidia.conf || die
+
+	# try to find driver mismatches using temporary supported-gpus.json
+	for g in $(grep -l 0x10de /sys/bus/pci/devices/*/vendor 2>/dev/null); do
+		g=$(grep -io "\"devid\":\"$(<${g%vendor}device)\"[^}]*branch\":\"[0-9]*" \
+			"${ED}"/usr/share/nvidia/supported-gpus.json 2>/dev/null)
+		if [[ ${g} ]]; then
+			g=$((${g##*\"}+1))
+			if ver_test -ge ${g}; then
+				NV_LEGACY_MASK=">=${CATEGORY}/${PN}-${g}"
+				break
+			fi
+		fi
+	done
+	rm "${ED}"/usr/share/nvidia/supported-gpus.json || die
+}
+
+pkg_postinst() {
+	use driver && linux-mod_pkg_postinst
+
+	readme.gentoo_print_elog
+
+	if [[ -r /proc/driver/nvidia/version &&
+		$(</proc/driver/nvidia/version) != *"  ${PV}  "* ]]; then
+		ewarn "Currently loaded NVIDIA modules do not match the newly installed"
+		ewarn "libraries and may prevent launching GPU-accelerated applications."
+		use driver && ewarn "The easiest way to fix this is usually to reboot."
+	fi
+
+	if [[ $(</proc/cmdline) == *slub_debug=[!-]* ]]; then
+		ewarn "Detected that the current kernel command line is using 'slub_debug=',"
+		ewarn "this may lead to system instability/freezes with this version of"
+		ewarn "${PN}. Bug: https://bugs.gentoo.org/796329"
+	fi
+
+	if [[ -v NV_LEGACY_MASK ]]; then
+		ewarn
+		ewarn "***WARNING***"
+		ewarn
+		ewarn "You are installing a version of ${PN} known not to work"
+		ewarn "with a GPU of the current system. If unwanted, add the mask:"
+		if [[ -d ${EROOT}/etc/portage/package.mask ]]; then
+			ewarn "  echo '${NV_LEGACY_MASK}' > ${EROOT}/etc/portage/package.mask/${PN}"
+		else
+			ewarn "  echo '${NV_LEGACY_MASK}' >> ${EROOT}/etc/portage/package.mask"
+		fi
+		ewarn "...then downgrade to a legacy branch if possible. For details, see:"
+		ewarn "https://www.nvidia.com/object/IO_32667.html"
+	fi
+
+	if use !abi_x86_32 && [[ -v NV_HAD_ABI32 ]]; then
+		elog
+		elog "USE=abi_x86_32 is disabled, 32bit applications will not be able to"
+		elog "use nvidia-drivers for acceleration without it (e.g. commonly used"
+		elog "with app-emulation/wine-* or steam). Re-enable if needed."
+	fi
+
+	if use wayland && use driver && [[ ! -v NV_HAD_WAYLAND ]]; then
+		elog
+		elog "With USE=wayland, this version of ${PN} sets nvidia-drm.modeset=1"
+		elog "in '${EROOT}/etc/modprobe.d/nvidia.conf'. This feature is considered"
+		elog "experimental but is required for wayland."
+		elog
+		elog "If you experience issues, either disable wayland or edit nvidia.conf."
+		elog "Of note, may possibly cause issues with SLI and Reverse PRIME."
+		elog
+		elog "This version of ${PN} only supports EGLStream which is only"
+		elog "supported by a few wayland compositors (e.g. kwin / mutter, not sway)."
+	fi
+}