- Workaround amdgpu and radeon issues by adding a new swiotlb option.

   defaults to disabled ( old way ) while still possible to enable and test the new way / code.
   The newer code does not work good or does not work at all on some HW ( mine as example )
   see:
    https://lkml.org/lkml/2018/4/5/737
    https://bugzilla.kernel.org/show_bug.cgi?id=198511
    https://bugs.freedesktop.org/show_bug.cgi?id=105038

1 files changed, 140 insertions, 0 deletions

diff --git a/sys-kernel/linux-image-redcore/linux-image-redcore-4.16.1.ebuild b/sys-kernel/linux-image-redcore/linux-image-redcore-4.16.1.ebuild
new file mode 100644
index 00000000..e2aef197
--- /dev/null
+++ b/sys-kernel/linux-image-redcore/linux-image-redcore-4.16.1.ebuild
@@ -0,0 +1,140 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+inherit eutils
+
+EXTRAVERSION="redcore"
+KV_FULL="${PV}-${EXTRAVERSION}"
+
+DESCRIPTION="Official Redcore Linux Kernel Image"
+HOMEPAGE="https://redcorelinux.org"
+SRC_URI="https://cdn.kernel.org/pub/linux/kernel/v4.x/linux-${PV}.tar.xz"
+
+KEYWORDS="~amd64"
+LICENSE="GPL-2"
+SLOT="${PV}"
+IUSE="+cryptsetup +dmraid +dracut +dkms +mdadm"
+
+RESTRICT="binchecks strip mirror"
+DEPEND="
+	app-arch/xz-utils
+	sys-devel/autoconf
+	sys-devel/bc
+	sys-devel/make
+	cryptsetup? ( sys-fs/cryptsetup )
+	dmraid? ( sys-fs/dmraid )
+	dracut? ( sys-kernel/dracut )
+	dkms? ( sys-kernel/dkms ~sys-kernel/linux-sources-redcore-${PV} )
+	mdadm? ( sys-fs/mdadm )
+	>=sys-kernel/linux-firmware-20180314"
+RDEPEND="${DEPEND}"
+
+PATCHES=( "${FILESDIR}"/enable_alx_wol.patch
+	"${FILESDIR}"/0001-Revert-ath10k-activate-user-space-firmware-loading-a.patch
+	"${FILESDIR}"/0001-Revert-swiotlb-remove-various-exports.patch
+	"${FILESDIR}"/0001-Revert-x86-ACPI-cstate-Allow-ACPI-C1-FFH-MWAIT-use-o.patch
+	"${FILESDIR}"/0001-Make-it-possible-to-disable-SWIOTLB-code-on-admgpu-a.patch
+	"${FILESDIR}"/mute-pps_state_mismatch.patch
+	"${FILESDIR}"/drop_ancient-and-wrong-msg.patch
+	"${FILESDIR}"/nouveau-pascal-backlight.patch
+	"${FILESDIR}"/linux-hardened.patch
+	"${FILESDIR}"/uksm-for-linux-hardened.patch )
+
+S="${WORKDIR}"/linux-"${PV}"
+
+pkg_setup() {
+	export REAL_ARCH="$ARCH"
+	unset ARCH ; unset LDFLAGS #will interfere with Makefile if set
+}
+
+src_prepare() {
+	default
+	emake mrproper
+	sed -ri "s|^(EXTRAVERSION =).*|\1 -${EXTRAVERSION}|" Makefile
+	cp "${FILESDIR}"/"${EXTRAVERSION}"-amd64.config .config
+}
+
+src_compile() {
+	emake prepare modules_prepare
+	emake bzImage modules
+}
+
+src_install() {
+	dodir boot
+	insinto boot
+	newins .config config-"${KV_FULL}"
+	newins System.map System.map-"${KV_FULL}"
+	newins arch/x86/boot/bzImage vmlinuz-"${KV_FULL}"
+
+	dodir usr/src/linux-"${KV_FULL}"
+	insinto usr/src/linux-"${KV_FULL}"
+	doins Module.symvers
+	doins System.map
+	exeinto usr/src/linux-"${KV_FULL}"
+	doexe vmlinux
+
+	emake INSTALL_MOD_PATH="${D}" modules_install
+
+	rm -f "${D}"lib/modules/"${KV_FULL}"/build
+	rm -f "${D}"lib/modules/"${KV_FULL}"/source
+	export local KSYMS
+	for KSYMS in build source ; do
+		dosym ../../../usr/src/linux-"${KV_FULL}" lib/modules/"${KV_FULL}"/"${KSYMS}"
+	done
+}
+
+_grub2_update_grubcfg() {
+	if [[ -x $(which grub2-mkconfig) ]]; then
+		elog "Updating GRUB-2 bootloader configuration, please wait"
+		grub2-mkconfig -o "${ROOT}"boot/grub/grub.cfg
+	else
+		elog "It looks like you're not using GRUB-2, you must update bootloader configuration by hand"
+	fi
+}
+
+_dracut_initrd_create() {
+	if [[ -x $(which dracut) ]]; then
+		elog "Generating initrd for "${KV_FULL}", please wait"
+		addpredict /etc/ld.so.cache~
+		dracut -f --no-hostonly-cmdline --kver="${KV_FULL}" "${ROOT}"boot/initrd-"${KV_FULL}"
+	else
+		elog "It looks like you're not using dracut, you must generate an initrd by hand"
+	fi
+}
+
+_dracut_initrd_delete() {
+	rm -rf "${ROOT}"boot/initrd-"${KV_FULL}"
+}
+
+_dkms_modules_delete() {
+	if [[ -x $(which dkms) ]] ; then
+		export local DKMSMOD
+		for DKMSMOD in $(dkms status | cut -d " " -f1,2 | sed -e 's/,//g' | sed -e 's/ /\//g' | sed -e 's/://g') ; do
+			dkms remove "${DKMSMOD}" -k "${KV_FULL}"
+		done
+	fi
+}
+
+_kernel_modules_delete() {
+	rm -rf "${ROOT}"lib/modules/"${KV_FULL}"
+}
+
+pkg_postinst() {
+	if use dracut; then
+		_dracut_initrd_create
+	fi
+	_grub2_update_grubcfg
+}
+
+pkg_postrm() {
+	if use dracut; then
+		_dracut_initrd_delete
+	fi
+	if use dkms; then
+		_dkms_modules_delete
+	fi
+	_kernel_modules_delete
+	_grub2_update_grubcfg
+}