asus-duma: initial port with msm kernel (#1581)

The ASUS MeMO Pad FHD 10 (ME302KL) is kinda like an enlarged version
of flo, all the unofficial Lineage / TWRP work has been derived from
flo. So eventually it should run mainline :) but let's start with this.

device/device-asus-duma/APKBUILD

@@ -0,0 +1,29 @@
+# Reference: <https://postmarketos.org/devicepkg>
+pkgname="device-asus-duma"
+pkgdesc="ASUS MeMO Pad FHD 10 (ME302KL)"
+pkgver=0.1
+pkgrel=0
+url="https://postmarketos.org"
+license="MIT"
+arch="noarch"
+options="!check"
+depends="postmarketos-base linux-asus-duma mkbootimg mesa-dri-swrast msm-fb-refresher"
+makedepends="devicepkg-dev"
+subpackages="$pkgname-nonfree-firmware:nonfree_firmware"
+source="deviceinfo"
+
+build() {
+	devicepkg_build $startdir $pkgname
+}
+
+package() {
+	devicepkg_package $startdir $pkgname
+}
+
+nonfree_firmware() {
+	pkgdesc="Wifi firmware"
+	depends="firmware-asus-duma"
+	mkdir "$subpkgdir"
+}
+
+sha512sums="98e2d7ac4d01063315634fc4a2e3c50a6fc76db9755c2fdc0b884d460acf15c2955f830b976d41889b4a176febf7bec1d48c485bdcd69cd099caccc8381d858e  deviceinfo"

device/device-asus-duma/deviceinfo

@@ -0,0 +1,34 @@
+# Reference: <https://postmarketos.org/deviceinfo>
+# Please use double quotes only. You can source this file in shell scripts.
+
+deviceinfo_format_version="0"
+deviceinfo_name="ASUS MeMO Pad FHD 10 (ME302KL)"
+deviceinfo_manufacturer="ASUS"
+deviceinfo_date=""
+deviceinfo_dtb=""
+deviceinfo_modules_initfs=""
+deviceinfo_arch="armhf"
+
+# Device related
+deviceinfo_keyboard="false"
+deviceinfo_external_storage="true"
+deviceinfo_screen_width="1920"
+deviceinfo_screen_height="1200"
+deviceinfo_dev_touchscreen="/dev/input/event0"
+deviceinfo_dev_touchscreen_calibration=""
+deviceinfo_dev_keyboard=""
+
+# Bootloader related
+deviceinfo_flash_method="fastboot"
+deviceinfo_kernel_cmdline="console=ttyHSL0,115200,n8 androidboot.hardware=msm8960 maxcpus=2 androidboot.selinux=permissive buildvariant=userdebug"
+deviceinfo_generate_bootimg="true"
+deviceinfo_bootimg_qcdt="false"
+deviceinfo_flash_offset_base="0x80200000"
+deviceinfo_flash_offset_kernel="0x00008000"
+deviceinfo_flash_offset_ramdisk="0x02000000"
+deviceinfo_flash_offset_second="0x00f00000"
+deviceinfo_flash_offset_tags="0x00000100"
+deviceinfo_flash_pagesize="2048"
+
+# Weston red screen workaround (see issue #54)
+deviceinfo_weston_pixman_type="2"

device/linux-asus-duma/00_fix_return_address.patch

@@ -0,0 +1,49 @@
+From aeea3592a13bf12861943e44fc48f1f270941f8d Mon Sep 17 00:00:00 2001
+From: Behan Webster <behanw@converseincode.com>
+Date: Wed, 24 Sep 2014 01:06:46 +0100
+Subject: [PATCH] ARM: 8158/1: LLVMLinux: use static inline in ARM ftrace.h
+
+With compilers which follow the C99 standard (like modern versions of gcc and
+clang), "extern inline" does the wrong thing (emits code for an externally
+linkable version of the inline function). In this case using static inline
+and removing the NULL version of return_address in return_address.c does
+the right thing.
+
+Signed-off-by: Behan Webster <behanw@converseincode.com>
+Reviewed-by: Mark Charlebois <charlebm@gmail.com>
+Acked-by: Steven Rostedt <rostedt@goodmis.org>
+Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
+---
+ arch/arm/include/asm/ftrace.h    | 2 +-
+ arch/arm/kernel/return_address.c | 5 -----
+ 2 files changed, 1 insertion(+), 6 deletions(-)
+
+diff --git a/arch/arm/include/asm/ftrace.h b/arch/arm/include/asm/ftrace.h
+index 39eb16b0066f2..bfe2a2f5a644e 100644
+--- a/arch/arm/include/asm/ftrace.h
++++ b/arch/arm/include/asm/ftrace.h
+@@ -45,7 +45,7 @@ void *return_address(unsigned int);
+ 
+ #else
+ 
+-extern inline void *return_address(unsigned int level)
++static inline void *return_address(unsigned int level)
+ {
+ 	return NULL;
+ }
+diff --git a/arch/arm/kernel/return_address.c b/arch/arm/kernel/return_address.c
+index fafedd86885dd..f6aa84d5b93c9 100644
+--- a/arch/arm/kernel/return_address.c
++++ b/arch/arm/kernel/return_address.c
+@@ -63,11 +63,6 @@ void *return_address(unsigned int level)
+ #warning "TODO: return_address should use unwind tables"
+ #endif
+ 
+-void *return_address(unsigned int level)
+-{
+-	return NULL;
+-}
+-
+ #endif /* if defined(CONFIG_FRAME_POINTER) && !defined(CONFIG_ARM_UNWIND) / else */
+ 
+ EXPORT_SYMBOL_GPL(return_address);

device/linux-asus-duma/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-asus-duma/APKBUILD

@@ -0,0 +1,80 @@
+# Kernel config based on: arch/arm/configs/elementalx_defconfig
+
+pkgname="linux-asus-duma"
+pkgver=3.4.113
+pkgrel=0
+pkgdesc="ASUS MeMO Pad FHD 10 (ME302KL) kernel fork"
+arch="armhf"
+_carch="arm"
+_flavor="asus-duma"
+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#${CROSS_COMPILE}}"
+
+# Source
+_repository="ElementalX-Kernel-for-ME302KL"
+_commit="b6a8f08e43a26771947556abfc697971eb67f06b"
+_config="config-${_flavor}.${arch}"
+source="
+	$pkgname-$_commit.tar.gz::https://github.com/yatto/${_repository}/archive/${_commit}.tar.gz
+	$_config
+	compiler-gcc6.h
+	00_fix_return_address.patch
+	02_gpu-msm-fix-gcc5-compile.patch
+"
+builddir="$srcdir/${_repository}-${_commit}"
+
+prepare() {
+	default_prepare
+
+	# gcc6 support
+	cp -v "$srcdir/compiler-gcc6.h" "$builddir/include/linux/"
+
+	# Remove -Werror from all makefiles
+	local i
+	local makefiles="$(find . -type f -name Makefile)
+		$(find . -type f -name Kbuild)"
+	for i in $makefiles; do
+		sed -i 's/-Werror-/-W/g' "$i"
+		sed -i 's/-Werror//g' "$i"
+	done
+
+	# Prepare kernel config ('yes ""' for kernels lacking olddefconfig)
+	cp "$srcdir"/$_config "$builddir"/.config
+	yes "" | make ARCH="$_carch" HOSTCC="$HOSTCC" oldconfig
+}
+
+build() {
+	unset LDFLAGS
+	make ARCH="$_carch" CC="${CC:-gcc}" \
+		KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-postmarketOS"
+}
+
+package() {
+	# kernel.release
+	install -D "$builddir/include/config/kernel.release" \
+		"$pkgdir/usr/share/kernel/$_flavor/kernel.release"
+
+	# 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="f47c0dfb34f9387ce9b7518fee6cae2fd91161cf1db0f0355bbc87fb201798d8c87f78779d3df4022a9bceeac8d9f0b111f7e63f25394e3f8cfbcd57a9da48c6  linux-asus-duma-b6a8f08e43a26771947556abfc697971eb67f06b.tar.gz
+d33d9b6019f3db0e755854b49461a851dfa706492717fdb4880dbf9ec9ce7be61052b22f3c10301412ec2f6548fdea10620f334b384e8f33af15a29ff7648818  config-asus-duma.armhf
+d80980e9474c82ba0ef1a6903b434d8bd1b092c40367ba543e72d2c119301c8b2d05265740e4104ca1ac5d15f6c4aa49e8776cb44264a9a28dc551e0d1850dcc  compiler-gcc6.h
+ea1d3b5a234fa565e3c1a792de48f4fc4e6023d281d303c8e319c7ef28edc5739ab0e4dea0139a41f0a5c7d03e27921ccaa214fd0ac5c72245a094ce60128864  00_fix_return_address.patch
+7be03a9e78b7ac330a54b1f00509caa0621a95c0c55901878ad757f9dd69cc05ba2c8b5ea987063ae1224f92c4d090d515fa5d369e7755181a4871b0d0f82881  02_gpu-msm-fix-gcc5-compile.patch"

device/linux-asus-duma/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 */
+

firmware/firmware-asus-duma/APKBUILD

@@ -0,0 +1,26 @@
+pkgname=firmware-asus-duma
+pkgver=1
+pkgrel=1
+pkgdesc="Firmware files for ASUS MeMO Pad FHD 10 (asus-duma)"
+url="https://github.com/postmarketOS"
+arch="noarch"
+license="proprietary"
+depends="wcnss-wlan"
+options="!check !strip !archcheck"
+
+# Source
+_commit="598acdf72ad986302d028fef7e9bcb5daadf7d79"
+_url="https://github.com/yatto/android_vendor_asus_duma"
+source="$pkgname-$_commit.tar.gz::$_url/archive/${_commit}.tar.gz"
+
+package() {
+	cd "$srcdir/android_vendor_asus_duma-$_commit/proprietary/vendor/firmware"
+
+	# /lib/firmware/postmarketos
+	_files="wcnss.b00 wcnss.b01 wcnss.b02 wcnss.b04 wcnss.b05 wcnss.mdt"
+	for _i in $_files; do
+		install -D -m644 "$_i" "$pkgdir/lib/firmware/postmarketos/$_i"
+	done
+}
+
+sha512sums="24e2e1bd79607fac822490f4ffc0e46f9cba2993fa2244d6d0d9281aecf21340f019aa33f501c8a3b74c1271eaefcb2e70c30cb7057897679b765748f054a279  firmware-asus-duma-598acdf72ad986302d028fef7e9bcb5daadf7d79.tar.gz"