From 1d1db2f0e92c53673e3f803a416e2f91ddee4933 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Karel=20Ko=C4=8D=C3=AD?= <cynerd@email.cz>
Date: Wed, 21 Mar 2018 00:02:15 +0100
Subject: Add support for amd to linux

---
 sys-kernel/linux/files/amd.config        | 92 ++++++++++++++++++++++++++++++++
 sys-kernel/linux/files/config_prepare.sh |  4 +-
 sys-kernel/linux/linux-4.14.27-r1.ebuild |  4 +-
 3 files changed, 97 insertions(+), 3 deletions(-)
 create mode 100644 sys-kernel/linux/files/amd.config

diff --git a/sys-kernel/linux/files/amd.config b/sys-kernel/linux/files/amd.config
new file mode 100644
index 0000000..e715ff1
--- /dev/null
+++ b/sys-kernel/linux/files/amd.config
@@ -0,0 +1,92 @@
+# No logo
+CONFIG_LOGO=n
+CONFIG_LOCALVERSION=""
+
+# Disable nouveau, radeon and intel
+CONFIG_DRM_NOUVEAU=n
+CONFIG_DRM_RADEON=n
+CONFIG_DRM_I915=n
+CONFIG_DRM_GMA500=n
+
+# Enable incompatible v3 process information file format
+CONFIG_BSD_PROCESS_ACCT_V3=y
+
+# Built in keyboard support
+CONFIG_KEYBOARD_ATKBD=y
+
+# SATA support compile in
+CONFIG_ATA=y
+CONFIG_SATA_AHCI=y
+CONFIG_BLK_DEV_SD=y
+# Compile BTRFS to kernel (used for root)
+CONFIG_BTRFS_FS=y
+# Compile FAT to kernel (used for efi partition)
+CONFIG_VFAT_FS=y
+# Cryptsetup
+CONFIG_BLK_DEV_DM=y
+CONFIG_DM_CRYPT=y
+CONFIG_CRYPTO_XTS=y
+CONFIG_CRYPTO_SHA256_SSSE3=y
+CONFIG_CRYPTO_SHA512_SSSE3=y
+CONFIG_CRYPTO_AES_X86_64=y
+CONFIG_CRYPTO_USER_API_SKCIPHER=y
+
+# Built in USB
+CONFIG_USB=y
+CONFIG_USB_XHCI_HCD=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_STORAGE=y
+# Built in HID (keyboard and so on)
+CONFIG_HID_GENERIC=y
+CONFIG_USB_HID=y
+CONFIG_I2C_HID=y
+CONFIG_HID_ASUS=y
+
+# Compile to kernel also other filesytems so we can use it if we need it
+CONFIG_EXT4_FS=y
+CONFIG_OVERLAY_FS=y
+CONFIG_SQUASHFS=y
+
+# Scrollback buffer size
+CONFIG_VGACON_SOFT_SCROLLBACK_SIZE=1024
+
+# AMD GPU
+CONFIG_AGP=y
+CONFIG_DRM=y
+CONFIG_DRM_AMDGPU=y
+
+# VFIO (gpu passtrough)
+CONFIG_VFIO=y
+CONFIG_VFIO_PCI=y
+
+# X input
+CONFIG_INPUT_EVDEV=y
+
+# Consolekit
+CONFIG_AUDIT=y
+
+# Build configuration into the kernel but as module
+CONFIG_IKCONFIG=m
+CONFIG_IKCONFIG_PROC=y
+
+# Chromium requires user namespace sandbox?
+CONFIG_USER_NS=y
+
+## Gentoo specific just to be sure
+# Udev
+CONFIG_DEVTMPFS=y
+CONFIG_TMPFS=y
+CONFIG_UNIX=y
+CONFIG_MMU=y
+CONFIG_SHMEM=y
+# Portage
+CONFIG_CGROUPS=y
+CONFIG_NAMESPACES=y
+CONFIG_IPC_NS=y
+CONFIG_NET_NS=y
+CONFIG_SYSVIPC=y
+# OpenRC
+CONFIG_BINFMT_SCRIPT=y
+
+# Options enabled just to make previous options enabled
+CONFIG_LEDS_CLASS=y
diff --git a/sys-kernel/linux/files/config_prepare.sh b/sys-kernel/linux/files/config_prepare.sh
index f4ae6d4..c2b5854 100755
--- a/sys-kernel/linux/files/config_prepare.sh
+++ b/sys-kernel/linux/files/config_prepare.sh
@@ -6,7 +6,9 @@ B="$(dirname $0)"
 BASE=arch.config
 OVERLAY=overlay.config
 
-if [ "$1" = "virt" ]; then
+if [ "$1" = "amd" ]; then
+	OVERLAY=amd.config
+elif [ "$1" = "virt" ]; then
 	BASE=
 	OVERLAY=virt.config
 fi
diff --git a/sys-kernel/linux/linux-4.14.27-r1.ebuild b/sys-kernel/linux/linux-4.14.27-r1.ebuild
index 7e6dd73..e387641 100644
--- a/sys-kernel/linux/linux-4.14.27-r1.ebuild
+++ b/sys-kernel/linux/linux-4.14.27-r1.ebuild
@@ -14,7 +14,7 @@ S="${WORKDIR}/linux-stable-${VER}"
 LICENSE="GPLv2"
 SLOT="${PV}"
 KEYWORDS="amd64 ~x86"
-IUSE="virt +initramfs"
+IUSE="virt +initramfs amd"
 
 DEPEND="
 	sys-devel/bc
@@ -25,7 +25,7 @@ src_configure() {
 	# Fix ARCH variable
 	[ "$ARCH" = "amd64" ] && ARCH="x86"
 
-	"${FILESDIR}"/config_prepare.sh $(usev virt) || die "Configuration application failed"
+	"${FILESDIR}"/config_prepare.sh $(usev virt) $(usev amd) || die "Configuration application failed"
 }
 
 src_install() {
-- 
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