Basic support for Sony Xperia Arc ("semc-anzu") (#1087)

* Boots successfully to Weston
* supports the touch screen
* SSH into the device over USB works

device/device-semc-anzu/APKBUILD

@@ -0,0 +1,28 @@
+# Reference: <https://postmarketos.org/devicepkg>
+pkgname=device-semc-anzu
+pkgdesc="Xperia Arc"
+pkgver=1
+pkgrel=0
+url="https://postmarketos.org"
+license="MIT"
+arch="noarch"
+options="!check"
+depends="linux-semc-anzu linux-firmware msm-fb-refresher mkbootimg libsparse mesa-dri-swrast"
+makedepends="devicepkg-dev"
+source="
+	deviceinfo
+	modules-load.conf
+"
+
+build() {
+	devicepkg_build $startdir $pkgname
+}
+
+package() {
+	devicepkg_package $startdir $pkgname
+	install -Dm644 "$srcdir"/modules-load.conf \
+		"$pkgdir"/etc/modules-load.d/00-${pkgname}.conf
+}
+
+sha512sums="290725561229df2c70396a950aff00605122d146def342d9a48fbb282fe238175095d1cfefdb83668da8ef11eaaf048599a807ef06c37e051916a64f2cc25be5  deviceinfo
+fc2241310bfc9777cd2240857d9176c48dbc8bdbd871b280e2703a2dce7c3810c0a36b78557088d81a161900c74ece2015c40b3c7e72f7970b46a3991e7856c2  modules-load.conf"

device/device-semc-anzu/deviceinfo

@@ -0,0 +1,35 @@
+# Reference: <https://postmarketos.org/deviceinfo>
+# Please use double quotes only. You can source this file in shell scripts.
+
+deviceinfo_format_version="0"
+deviceinfo_name="Xperia Arc"
+deviceinfo_manufacturer="SEMC"
+deviceinfo_date=""
+deviceinfo_dtb=""
+deviceinfo_modules_initfs=""
+deviceinfo_external_disk_install="true"
+deviceinfo_arch="armhf"
+
+# Device related
+deviceinfo_keyboard="false"
+deviceinfo_external_disk="true"
+deviceinfo_screen_width="480"
+deviceinfo_screen_height="854"
+deviceinfo_dev_touchscreen="/dev/input/event2"
+deviceinfo_dev_touchscreen_calibration=""
+deviceinfo_dev_keyboard=""
+deviceinfo_msm_refresher="true"
+deviceinfo_weston_pixman_type="2"
+
+# Bootloader related
+deviceinfo_flash_method="fastboot"
+deviceinfo_kernel_cmdline=""
+deviceinfo_generate_bootimg="true"
+deviceinfo_bootimg_qcdt="false"
+deviceinfo_flash_offset_base="0x00200000"
+deviceinfo_flash_offset_kernel="0x00008000"
+deviceinfo_flash_offset_ramdisk="0x01000000"
+deviceinfo_flash_offset_second="0x00f00000"
+deviceinfo_flash_offset_tags="0x00000100"
+deviceinfo_flash_pagesize="2048"
+deviceinfo_flash_sparse="true"

device/device-semc-anzu/modules-load.conf

@@ -0,0 +1,5 @@
+# This file contains the names of kernel modules that should be loaded
+# at boot time, one per line. Lines beginning with "#" are ignored.
+
+# wifi module
+wl12xx_sdio

device/linux-semc-anzu/01_msm-fix-perf_trace_counters.patch

@@ -0,0 +1,34 @@
+From e41494c15d4df342854ac3d2940f5d6ac3158212 Mon Sep 17 00:00:00 2001
+From: Bryan Huntsman <bryanh@codeaurora.org>
+Date: Mon, 3 Jun 2013 18:48:08 -0700
+Subject: [PATCH] msm: fix in-tree compilation for perf_trace_counters
+
+In-tree compilation for arch/arm/mach-msm/perf_trace_counters.c was
+hitting this error:
+
+    In file included from arch/arm/mach-msm/perf_trace_counters.h:127:0,
+                     from arch/arm/mach-msm/perf_trace_counters.c:14:
+    include/trace/define_trace.h:79:43: fatal error: ./perf_trace_counters.h: No such file or directory
+
+Instructions for TRACE_INCLUDE_FILE in include/trace/define_trace.h say
+"the path is relative to define_trace.h, not the file including it".
+Fix in-tree compilation by making the path relative to define_trace.h.
+
+Signed-off-by: Bryan Huntsman <bryanh@codeaurora.org>
+---
+ arch/arm/mach-msm/perf_trace_counters.h | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+diff --git a/arch/arm/mach-msm/perf_trace_counters.h b/arch/arm/mach-msm/perf_trace_counters.h
+index ce7e336aa40d..8f77badf42ac 100644
+--- a/arch/arm/mach-msm/perf_trace_counters.h
++++ b/arch/arm/mach-msm/perf_trace_counters.h
+@@ -121,7 +121,6 @@ TRACE_EVENT(sched_switch_with_ctrs,
+ 
+ #endif
+ #undef TRACE_INCLUDE_PATH
+-#define TRACE_INCLUDE_PATH .
++#define TRACE_INCLUDE_PATH ../../arch/arm/mach-msm
+ #define TRACE_INCLUDE_FILE perf_trace_counters
+ #include <trace/define_trace.h>
+-

device/linux-semc-anzu/02_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-semc-anzu/APKBUILD

@@ -0,0 +1,100 @@
+# APKBUILD automatically generated. Changes:
+# - add xz package
+# - add kernel modules build and installation
+#
+# Kernel config based on: arch/arm/configs/lx_anzu_defconfig
+# - apply patches to compile
+# - make kernel XZ-compressed instead of LZMA-compressed
+
+pkgname="linux-semc-anzu"
+pkgver=3.4.0
+pkgrel=0
+pkgdesc="Xperia Arc/Arc S kernel fork"
+arch="armhf"
+_carch="arm"
+_flavor="semc-anzu"
+url="https://kernel.org"
+license="GPL2"
+options="!strip !check !tracedeps"
+makedepends="perl sed installkernel bash gmp-dev bc linux-headers elfutils-dev xz"
+HOSTCC="${CC:-gcc}"
+HOSTCC="${HOSTCC#${CROSS_COMPILE}}"
+
+# Source
+_repository="android_kernel_semc_msm7x30"
+_commit="9c6f07f81e2c0bcb2bef75fa9716cc30f8942286"
+_config="config-${_flavor}.${arch}"
+source="
+	$pkgname-$_commit.tar.gz::https://github.com/LegacyXperia/${_repository}/archive/${_commit}.tar.gz
+	$_config
+	compiler-gcc6.h
+	01_msm-fix-perf_trace_counters.patch
+	02_gpu-msm-fix-gcc5-compile.patch
+"
+builddir="$srcdir/${_repository}-${_commit}"
+
+prepare() {
+	default_prepare
+
+	# gcc6 support
+	cp -v "$srcdir/compiler-gcc6.h" "$builddir/include/linux/"
+
+	# Remove -Werror from all makefiles
+	find . -type f -name Makefile -print0 | \
+		xargs -0 sed -i 's/-Werror-/-W/g'
+	find . -type f -name Makefile -print0 | \
+		xargs -0 sed -i 's/-Werror//g'
+
+	# Prepare kernel config ('yes ""' for kernels lacking olddefconfig)
+	cp "$srcdir"/$_config "$builddir"/.config
+	yes "" | make ARCH="$_carch" HOSTCC="$HOSTCC" oldconfig
+}
+
+menuconfig() {
+	cd "$builddir"
+	make ARCH="$_carch" menuconfig
+	cp .config "$startdir"/$_config
+}
+
+build() {
+	unset LDFLAGS
+	make ARCH="$_carch" CC="${CC:-gcc}" \
+		KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-postmarketOS"
+
+	# the 'no-pic' flag is necessary to avoid the
+	# error 'Unknown symbol _GLOBAL_OFFSET_TABLE_ (err 0)' when loading the module
+	make ARCH="$_carch" CC="${CC:-gcc}" CFLAGS_MODULE="-fno-pic" \
+		KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-postmarketOS" modules
+}
+
+package() {
+	# kernel.release
+	install -D "$builddir/include/config/kernel.release" \
+		"$pkgdir/usr/share/kernel/$_flavor/kernel.release"
+
+	# modules
+	cd "$builddir"
+	make ARCH="$_carch" CC="${CC:-gcc}" \
+		KBUILD_BUILD_VERSION="$((pkgrel + 1))-postmarketOS" \
+		INSTALL_MOD_PATH="$pkgdir" INSTALL_MOD_STRIP=1 modules_install
+
+	# zImage (find the right one)
+	cd "$builddir/arch/$_carch/boot"
+	_target="$pkgdir/boot/vmlinuz-$_flavor"
+	for _zimg in zImage-dtb Image.gz-dtb *zImage Image; do
+		[ -e "$_zimg" ] || continue
+		msg "zImage found: $_zimg"
+		install -Dm644 "$_zimg" "$_target"
+		break
+	done
+	if ! [ -e "$_target" ]; then
+		error "Could not find zImage in $PWD!"
+		return 1
+	fi
+}
+
+sha512sums="234e8973236e6056c60a312340ef4ccb7598adc43bd1f0c2ca0e89d03f4e16ecfdd5ad4658d76993c7bae24242a7e134a9ed2fda662dfe229b61f3a88ea6c2f0  linux-semc-anzu-9c6f07f81e2c0bcb2bef75fa9716cc30f8942286.tar.gz
+0af76d035ce554139f58ca1c424ac3d9a30dab63dc4ea40c524bb15a2b610687a98f07caf734bd6b138f1a06b543f1be668fee89250ba1fd47dbd7ec15e59780  config-semc-anzu.armhf
+d80980e9474c82ba0ef1a6903b434d8bd1b092c40367ba543e72d2c119301c8b2d05265740e4104ca1ac5d15f6c4aa49e8776cb44264a9a28dc551e0d1850dcc  compiler-gcc6.h
+f85ced49ee2f2461adea68dac0a10452aa809a7d41d869092d94eb085344919a9a385dec0c48011f4601ca4f441700f7fe49075c7eca4fb2d66b01f7d413ccb7  01_msm-fix-perf_trace_counters.patch
+7be03a9e78b7ac330a54b1f00509caa0621a95c0c55901878ad757f9dd69cc05ba2c8b5ea987063ae1224f92c4d090d515fa5d369e7755181a4871b0d0f82881  02_gpu-msm-fix-gcc5-compile.patch"

device/linux-semc-anzu/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 */
+