Verified Commit 0bab9b5f authored by Thiago Foganholi's avatar Thiago Foganholi Committed by Oliver Smith
Browse files

Add package main/linux-postmarketos-exynos4 (MR 1634)

The devices supported by this package are Galaxy S3 (GT-I9300, GT-I9305,
SHV-E210K/L/S) and the Galaxy Note 2 (GT-N7100, GT-N7105) - a family of
boards also known by the codename "Midas" - and the Galaxy S2 (GT-I9100)

From this list, only the i9100 doesn't support the bootimg method.
Because of this, this kernel package is using the isorec method for all
the devices on the list. Additionally, for the midas devices, there is
no problem with this because the boot.img file is, in fact, a copy of
the kernel+initramfs on the pmos boot partition and what the isorec
initramfs does is actually to load the initramfs on that partition
directly (at least on my understanding).
parent b5895c0e
From 2a6027178ae40c1d3baa965fe21b19cbf09493ce Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@android.com>
Date: Fri, 30 Nov 2012 17:05:40 -0800
Subject: [PATCH] ARM: decompressor: Flush tlb before swiching domain 0 to
client mode
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
If the bootloader used a page table that is incompatible with domain 0
in client mode, and boots with the mmu on, then swithing domain 0 to
client mode causes a fault if we don't flush the tlb after updating
the page table pointer.
v2: Add ISB before loading dacr.
Signed-off-by: Arve Hjønnevåg <arve@android.com>
---
arch/arm/boot/compressed/head.S | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S
index 8a756870..5b9e2d4b 100644
--- a/arch/arm/boot/compressed/head.S
+++ b/arch/arm/boot/compressed/head.S
@@ -794,6 +794,8 @@ __armv7_mmu_cache_on:
bic r6, r6, #1 << 31 @ 32-bit translation system
bic r6, r6, #(7 << 0) | (1 << 4) @ use only ttbr0
mcrne p15, 0, r3, c2, c0, 0 @ load page table pointer
+ mcrne p15, 0, r0, c8, c7, 0 @ flush I,D TLBs
+ mcr p15, 0, r0, c7, c5, 4 @ ISB
mcrne p15, 0, r1, c3, c0, 0 @ load domain access control
mcrne p15, 0, r6, c2, c0, 2 @ load ttb control
#endif
--
2.28.0
# Contributor: Thiago Foganholi <thiagaoplusplus@outlook.com>
# Maintainer: Thiago Foganholi <thiagaoplusplus@outlook.com>
# Kernel config based on: arch/arm/configs/exynos_defconfig
pkgname=linux-postmarketos-exynos4
pkgver=5.9.1
pkgrel=0
pkgdesc="Mainline kernel fork for Samsung Exynos4 devices"
arch="armv7"
_carch="arm"
_flavor="${pkgname#linux-}"
url="https://kernel.org"
license="GPL-2.0-only"
options="!strip !check !tracedeps pmb:cross-native pmb:kconfigcheck-anbox"
makedepends="bison busybox-static-$arch findutils flex installkernel openssl-dev perl xz"
# Source
_config="config-$_flavor.$arch"
case $pkgver in
*.*.*) _kernver=${pkgver%.0};;
*.*) _kernver=$pkgver;;
esac
source="
https://cdn.kernel.org/pub/linux/kernel/v${_kernver%%.*}.x/linux-$_kernver.tar.xz
$_config
0001-ARM-decompressor-Flush-tlb-before-swiching-domain-0-.patch
initramfs.list
init
"
builddir="$srcdir/linux-$_kernver"
prepare_isorec() {
# https://wiki.postmarketos.org/wiki/Boot_process#isorec
cp -v /usr/$(arch_to_hostspec $arch)/bin/busybox.static \
"$builddir"/usr/
cp -v "$srcdir"/init "$builddir"/usr/
cp -v "$srcdir"/initramfs.list "$builddir"/usr/
}
prepare() {
default_prepare
prepare_isorec
cp -v "$srcdir/$_config" .config
}
build() {
unset LDFLAGS
make ARCH="$_carch" CC="${CC:-gcc}" \
KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-postmarketOS"
}
package() {
mkdir -p "$pkgdir"/boot
make zinstall modules_install dtbs_install \
ARCH="$_carch" \
INSTALL_MOD_STRIP=1 \
INSTALL_PATH="$pkgdir"/boot \
INSTALL_MOD_PATH="$pkgdir" \
INSTALL_DTBS_PATH="$pkgdir/usr/share/dtb"
install -D "$builddir"/include/config/kernel.release \
"$pkgdir/usr/share/kernel/$_flavor/kernel.release"
}
sha512sums="96af08c1dc964e5dbb3d221880ef8ca246f13370d2dc2f5ae64039f0352efc687c7446a2b4f86dad553b776ee75f78bbf58bb9bc845c9b57a9013ece63264874 linux-5.9.1.tar.xz
c817cbc005b7f3c14c2f171c800753b6180f3a72d8164db977c341015b331fe0865c4024454a22604765bc53f1df4554b29f3c8b86c3ab9f8020c8ba148960e7 config-postmarketos-exynos4.armv7
4bb111db4396a1981ad0883737c6594ca93701699846298b940d2ea202c666be0158a0f9ddc5b95b9147fa4cfe62639512ae78e9315f8d975b379ccc4e15da36 0001-ARM-decompressor-Flush-tlb-before-swiching-domain-0-.patch
aaff0332b90e1f9f62de1128cace934717336e54ab09de46477369fa808302482d97334e43a85ee8597c1bcab64d3484750103559fea2ce8cd51776156bf7591 initramfs.list
09f1f214a24300696809727a7b04378887c06ca6f40803ca51a12bf2176a360b2eb8632139d6a0722094e05cb2038bdb04018a1e3d33fc2697674552ade03bee init"
#!/bin/busybox sh
# Samsung kernels come with their own initramfs, which extract and load another
# initramfs. Usually that depends on the recovery key combination being pressed
# or not. For simplicity, we always boot the recovery image (from the recovery
# partition) here.
echo "### isorec initramfs ###"
busybox mount -t proc proc /proc
busybox mount -t sysfs sysfs /sys
# always use the "isorec"-style lzop compressed initramfs
# from the recovery partition
load_image=/isorec.cpio
busybox lzop -dc /dev/block/mmcblk0p6 > ${load_image}
busybox cpio -iu < ${load_image}
busybox rm ${load_image}
busybox umount /sys
busybox umount /proc
exec /init
dir /dev 755 0 0
dir /dev/block 755 0 0
nod /dev/block/mmcblk0 600 0 0 b 179 0
nod /dev/block/mmcblk0p1 600 0 0 b 179 1
nod /dev/block/mmcblk0p2 600 0 0 b 179 2
nod /dev/block/mmcblk0p3 600 0 0 b 179 3
nod /dev/block/mmcblk0p4 600 0 0 b 179 4
nod /dev/block/mmcblk0p5 600 0 0 b 179 5
nod /dev/block/mmcblk0p6 600 0 0 b 179 6
nod /dev/block/mmcblk0p7 600 0 0 b 179 7
nod /dev/block/mmcblk0p8 600 0 0 b 179 8
nod /dev/block/mmcblk0p9 600 0 0 b 179 9
nod /dev/block/mmcblk0p10 600 0 0 b 179 10
nod /dev/block/mmcblk0p11 600 0 0 b 179 11
nod /dev/block/mmcblk0p12 600 0 0 b 179 12
nod /dev/console 600 0 0 c 5 1
dir /bin 755 0 0
dir /proc 755 0 0
dir /sys 755 0 0
file /bin/busybox usr/busybox.static 755 0 0
file /init usr/init 755 0 0
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