Initial support for Huawei Google Nexus 6P (Angler) (#512)

This uses the LineageOS 14.1 kernel.

device/device-huawei-angler/90-android.rules

@@ -0,0 +1,2 @@
+# udev rules file
+# All device names can be read from weston's logfile (/tmp/weston.log in postmarketOS)

device/device-huawei-angler/APKBUILD

@@ -0,0 +1,27 @@
+pkgname=device-huawei-angler
+pkgver=1
+pkgrel=0
+pkgdesc="Huawei Nexus 6P"
+url="https://github.com/postmarketOS"
+arch="noarch"
+license="MIT"
+depends="linux-huawei-angler mkbootimg"
+makedepends=""
+install=""
+subpackages=""
+source="deviceinfo 90-android.rules"
+options="!check"
+
+build() {
+	return 0
+}
+
+package() {
+	install -D -m644 "$srcdir/deviceinfo" \
+		"$pkgdir/etc/deviceinfo"
+	install -D -m644 "$srcdir"/90-android.rules \
+		"$pkgdir"/etc/udev/rules.d/90-android.rules
+}
+
+sha512sums="3bb53698b5fbfdd0522aaaf56966ea228cd79bea05c9af14d988604b1294d93a3a991107d5483845fc0064cf44d9f9ef54f9cbc517959f0327318b1902b9ee86  deviceinfo
+155aa9c8bd0e202917c7f55312eaaa189114864d89bbf7fdbdcc4fe146af3c7c781a6e76b0030046383dee823465a994d6954408248cc2f43e48af40869d6b25  90-android.rules"

device/device-huawei-angler/deviceinfo

@@ -0,0 +1,32 @@
+# Reference: <https://postmarketos.org/deviceinfo>
+# Please use double quotes only. You can source this file in shell scripts.
+
+deviceinfo_format_version="0"
+deviceinfo_name="Google Nexus 6P"
+deviceinfo_manufacturer="Huawei"
+deviceinfo_date=""
+deviceinfo_keyboard="false"
+deviceinfo_nonfree="????"
+deviceinfo_dtb=""
+deviceinfo_modules_initfs=""
+deviceinfo_external_disk="false"
+deviceinfo_external_disk_install="false"
+deviceinfo_flash_methods="fastboot"
+deviceinfo_arch="aarch64"
+
+# Splash screen
+deviceinfo_screen_width="1440"
+deviceinfo_screen_height="2560"
+
+# Fastboot related
+deviceinfo_generate_bootimg="true"
+deviceinfo_flash_offset_base="0x00000000"
+deviceinfo_flash_offset_kernel="0x00008000"
+deviceinfo_flash_offset_ramdisk="0x02000000"
+# Angler doesn't have a second in the boot.img. This is a placeholder value for mkbootimg
+deviceinfo_flash_offset_second="0x00000000"
+deviceinfo_flash_offset_tags="0x01e00000"
+deviceinfo_kernel_cmdline="androidboot.hardware=angler androidboot.console=ttyHSL0 msm_rtb.filter=0x37 ehci-hcd.park=3 lpm_levels.sleep_disabled=1 boot_cpus=0-3"
+deviceinfo_flash_pagesize="4096"
+
+deviceinfo_weston_core_modules="xwayland.so"

device/device-huawei-angler/initfs-hook.sh

@@ -0,0 +1,4 @@
+#!/bin/sh
+
+# set framebuffer resolution
+cat /sys/class/graphics/fb0/modes > /sys/class/graphics/fb0/mode

device/linux-huawei-angler/APKBUILD

@@ -0,0 +1,109 @@
+# APKBUILD based on linux-vanilla aport. Changes:
+# - disabled module installation
+# - add !check !tracedeps
+# - package: just install zimage and kernel.release, because the kernel config
+#	does not generate modules or dtb files
+# - do not create -dev subpackage (makes no sense without module support)
+#
+# Kernel config based on: arch/arm64/configs/lineageos_angler_defconfig
+# Changes:
+# - enable devtmpfs (needed for udev -> touch support in weston)
+
+_vendor=huawei
+_flavor=huawei-angler
+_hash="04d1557af1259b211609fa41adbe852b5f9cf2da"
+_config="config-${_flavor}.aarch64"
+
+pkgname=linux-${_flavor}
+pkgver=3.10.73
+case $pkgver in
+	*.*.*)  _kernver=${pkgver%.*};;
+	*.*) _kernver=$pkgver;;
+esac
+pkgrel=0
+arch="aarch64"
+pkgdesc="LineageOS kernel for Nexus 6P Angler"
+url="https://github.com/LineageOS/android_kernel_huawei_angler"
+depends="postmarketos-mkinitfs"
+makedepends="perl sed installkernel bash gmp-dev bc linux-headers elfutils-dev python2"
+options="!strip !check !tracedeps"
+install=
+source="
+	$pkgname-$_hash.tar.gz::https://github.com/LineageOS/android_kernel_huawei_angler/archive/${_hash}.tar.gz
+	${_config}
+	compiler-gcc6.h
+	kernel-use-the-gnu89-standard-explicitly.patch
+"
+subpackages=""
+license="GPL2"
+
+_abi_release=${pkgver}
+_carch="arm64"
+HOSTCC="${CC:-gcc}"
+HOSTCC="${HOSTCC#${CROSS_COMPILE}}"
+
+ksrcdir="$srcdir/android_kernel_huawei_angler-${_hash}"
+
+prepare() {
+	local _patch_failed=
+	cd "$ksrcdir"
+
+	# first apply patches in specified order
+	for i in $source; do
+		case $i in
+		*.patch)
+			msg "Applying $i..."
+			if ! patch -s -p1 -N -i "$srcdir"/$i; then
+				echo $i >>failed
+				_patch_failed=1
+			fi
+			;;
+		esac
+	done
+
+	if ! [ -z "$_patch_failed" ]; then
+		error "The following patches failed:"
+		cat failed
+		return 1
+	fi
+
+	# gcc6 support
+	cp -v "$srcdir/compiler-gcc6.h" "$ksrcdir/include/linux/"
+
+        mkdir -p "$srcdir"/build
+        cp "$srcdir"/$_config "$srcdir"/build/.config || return 1
+	echo "--[ silentoldconfig ]--"
+        yes "" | make -C "$ksrcdir" O="$srcdir"/build ARCH="$_carch" HOSTCC="$HOSTCC" \
+                oldconfig
+}
+
+
+
+# this is so we can do: 'abuild menuconfig' to reconfigure kernel
+menuconfig() {
+	cd "$srcdir"/build || return 1
+	echo "--[ menuconfig ]--"
+	make ARCH="$_carch" menuconfig
+	cp .config "$startdir"/$_config
+}
+
+build() {
+	cd "$srcdir"/build
+	unset LDFLAGS
+	make ARCH="$_carch" CC="${CC:-gcc}" \
+		KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-Alpine" CONFIG_NO_ERROR_ON_MISMATCH=y \
+		|| return 1
+}
+
+package() {
+	install -Dm644 "$srcdir/build/arch/arm64/boot/Image.gz-dtb" \
+		"$pkgdir/boot/vmlinuz-$_flavor"
+
+	install -D "$srcdir/build/include/config/kernel.release" \
+		"$pkgdir/usr/share/kernel/$_flavor/kernel.release"
+}
+
+sha512sums="fb4328a3ade80670ca3c2674a61a4c524771d6eaebdc477943f2cc4bb33d845e8bcd7282941db708026bfefe6820cc1010d784d8afed5b91289d4e7e9ea1d7cd  linux-huawei-angler-04d1557af1259b211609fa41adbe852b5f9cf2da.tar.gz
+ca281ff4a694725ebb1a8bad597220d3d74cf40d1037f69236ed3ece58c5246264b9ea7e0e1e46046d8597a4c6582bf24c972990461ab15b0b426606d3aaab9f  config-huawei-angler.aarch64
+d80980e9474c82ba0ef1a6903b434d8bd1b092c40367ba543e72d2c119301c8b2d05265740e4104ca1ac5d15f6c4aa49e8776cb44264a9a28dc551e0d1850dcc  compiler-gcc6.h
+ad0182a483791fc88e058838bc331b2f04a75ba291e763767babdb815efadfc3b4fda97e69e2e3f00a426cabea088e35297a92bd287592597d1e309be68ee92c  kernel-use-the-gnu89-standard-explicitly.patch"

device/linux-huawei-angler/compiler-gcc6.h

@@ -0,0 +1,69 @@
+// SOURCE:
+// https://github.com/NextThingCo/CHIP-u-boot/issues/10#issuecomment-287515505
+
+#ifndef __LINUX_COMPILER_H
+#error "Please don't include <linux/compiler-gcc6.h> directly, include <linux/compiler.h> instead."
+#endif
+
+#define __used				__attribute__((__used__))
+#define __must_check			__attribute__((warn_unused_result))
+#define __compiler_offsetof(a, b)	__builtin_offsetof(a, b)
+
+/* Mark functions as cold. gcc will assume any path leading to a call
+   to them will be unlikely.  This means a lot of manual unlikely()s
+   are unnecessary now for any paths leading to the usual suspects
+   like BUG(), printk(), panic() etc. [but let's keep them for now for
+   older compilers]
+
+   Early snapshots of gcc 4.3 don't support this and we can't detect this
+   in the preprocessor, but we can live with this because they're unreleased.
+   Maketime probing would be overkill here.
+
+   gcc also has a __attribute__((__hot__)) to move hot functions into
+   a special section, but I don't see any sense in this right now in
+   the kernel context */
+#define __cold			__attribute__((__cold__))
+
+#define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__)
+
+#ifndef __CHECKER__
+# define __compiletime_warning(message) __attribute__((warning(message)))
+# define __compiletime_error(message) __attribute__((error(message)))
+#endif /* __CHECKER__ */
+
+/*
+ * Mark a position in code as unreachable.  This can be used to
+ * suppress control flow warnings after asm blocks that transfer
+ * control elsewhere.
+ *
+ * Early snapshots of gcc 4.5 don't support this and we can't detect
+ * this in the preprocessor, but we can live with this because they're
+ * unreleased.  Really, we need to have autoconf for the kernel.
+ */
+#define unreachable() __builtin_unreachable()
+
+/* Mark a function definition as prohibited from being cloned. */
+#define __noclone	__attribute__((__noclone__))
+
+/*
+ * Tell the optimizer that something else uses this function or variable.
+ */
+#define __visible __attribute__((externally_visible))
+
+/*
+ * GCC 'asm goto' miscompiles certain code sequences:
+ *
+ *   http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58670
+ *
+ * Work it around via a compiler barrier quirk suggested by Jakub Jelinek.
+ *
+ * (asm goto is automatically volatile - the naming reflects this.)
+ */
+#define asm_volatile_goto(x...)	do { asm goto(x); asm (""); } while (0)
+
+#ifdef CONFIG_ARCH_USE_BUILTIN_BSWAP
+#define __HAVE_BUILTIN_BSWAP32__
+#define __HAVE_BUILTIN_BSWAP64__
+#define __HAVE_BUILTIN_BSWAP16__
+#endif /* CONFIG_ARCH_USE_BUILTIN_BSWAP */
+

device/linux-huawei-angler/gpu-msm-fix-gcc5-compile.patch

@@ -0,0 +1,33 @@
+source:
+https://github.com/ShinySide/HispAsian_Lollipop_G6/commit/b7756b6fc4bb728722b14d2dfdbaf1dc843812e9
+
+* These need to be static to avoid these errors:
+
+drivers/built-in.o: In function `.LANCHOR1':
+msm_iommu_sec.c:(.data+0x9298): undefined reference to `kgsl_iommu_sync_lock'
+msm_iommu_sec.c:(.data+0x929c): undefined reference to `kgsl_iommu_sync_unlock'
+Makefile:877: recipe for target '.tmp_vmlinux1' failed
+make: *** [.tmp_vmlinux1] Error 1
+
+Signed-off-by: Chet Kener <Cl3Kener@gmail.com>
+
+--- a/drivers/gpu/msm/kgsl_iommu.c
++++ b/drivers/gpu/msm/kgsl_iommu.c
+@@ -1010,7 +1010,7 @@ static int kgsl_iommu_init_sync_lock(struct kgsl_mmu *mmu)
+  *
+  * Return - int - number of commands.
+  */
+-inline unsigned int kgsl_iommu_sync_lock(struct kgsl_mmu *mmu,
++static inline unsigned int kgsl_iommu_sync_lock(struct kgsl_mmu *mmu,
+ 						unsigned int *cmds)
+ {
+ 	struct kgsl_device *device = mmu->device;
+@@ -1080,7 +1080,7 @@ inline unsigned int kgsl_iommu_sync_lock(struct kgsl_mmu *mmu,
+  *
+  * Return - int - number of commands.
+  */
+-inline unsigned int kgsl_iommu_sync_unlock(struct kgsl_mmu *mmu,
++static inline unsigned int kgsl_iommu_sync_unlock(struct kgsl_mmu *mmu,
+ 					unsigned int *cmds)
+ {
+ 	struct kgsl_device *device = mmu->device;

device/linux-huawei-angler/kernel-use-the-gnu89-standard-explicitly.patch

@@ -0,0 +1,67 @@
+From 51b97e354ba9fce1890cf38ecc754aa49677fc89 Mon Sep 17 00:00:00 2001
+From: "Kirill A. Shutemov" <kirill@shutemov.name>
+Date: Mon, 20 Oct 2014 12:23:12 +0300
+Subject: kernel: use the gnu89 standard explicitly
+
+From: "Kirill A. Shutemov" <kirill@shutemov.name>
+
+commit 51b97e354ba9fce1890cf38ecc754aa49677fc89 upstream.
+
+Sasha Levin reports:
+ "gcc5 changes the default standard to c11, which makes kernel build
+  unhappy
+
+  Explicitly define the kernel standard to be gnu89 which should keep
+  everything working exactly like it was before gcc5"
+
+There are multiple small issues with the new default, but the biggest
+issue seems to be that the old - and very useful - GNU extension to
+allow a cast in front of an initializer has gone away.
+
+Patch updated by Kirill:
+ "I'm pretty sure all gcc versions you can build kernel with supports
+  -std=gnu89.  cc-option is redunrant.
+
+  We also need to adjust HOSTCFLAGS otherwise allmodconfig fails for me"
+
+Note by Andrew Pinski:
+ "Yes it was reported and both problems relating to this extension has
+  been added to gnu99 and gnu11.  Though there are other issues with the
+  kernel dealing with extern inline have different semantics between
+  gnu89 and gnu99/11"
+
+End result: we may be able to move up to a newer stdc model eventually,
+but right now the newer models have some annoying deficiencies, so the
+traditional "gnu89" model ends up being the preferred one.
+
+Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
+Singed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
+Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ Makefile |    6 ++++--
+ 1 file changed, 4 insertions(+), 2 deletions(-)
+
+--- a/Makefile
++++ b/Makefile
+@@ -241,7 +241,7 @@ CONFIG_SHELL := $(shell if [ -x "$$BASH"
+ 
+ HOSTCC       = gcc
+ HOSTCXX      = g++
+-HOSTCFLAGS   = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer
++HOSTCFLAGS   = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer -std=gnu89
+ HOSTCXXFLAGS = -O2
+ 
+ # Decide whether to build built-in, modular, or both.
+@@ -373,7 +373,9 @@ KBUILD_CFLAGS   := -Wall -Wundef -Wstric
+ 		   -fno-strict-aliasing -fno-common \
+ 		   -Werror-implicit-function-declaration \
+ 		   -Wno-format-security \
+-		   -fno-delete-null-pointer-checks
++		   -fno-delete-null-pointer-checks \
++		   -std=gnu89
++
+ KBUILD_AFLAGS_KERNEL :=
+ KBUILD_CFLAGS_KERNEL :=
+ KBUILD_AFLAGS   := -D__ASSEMBLY__