xiaomi-merlin: new device

device/testing/device-xiaomi-merlin/APKBUILD

+# Reference: <https://postmarketos.org/devicepkg>
+pkgname=device-xiaomi-merlin
+pkgdesc="Xiaomi Redmi Note 9"
+pkgver=0.1
+pkgrel=0
+url="https://postmarketos.org"
+license="MIT"
+arch="aarch64"
+options="!check !archcheck"
+depends="
+	linux-xiaomi-merlin
+	mkbootimg
+	postmarketos-base
+	msm-fb-refresher
+"
+makedepends="devicepkg-dev"
+source="
+	deviceinfo
+	modules-initfs
+"
+
+build() {
+	devicepkg_build $startdir $pkgname
+}
+
+package() {
+	devicepkg_package $startdir $pkgname
+}
+
+sha512sums="
+06d213071f7c319519327c3c9a1b2197a1fa2c9e2390179de22eace6a4c1ef764d946d3a4bae6ea8732d6891b472dc7df13319affadd995594e57f5d6141bc50  deviceinfo
+e70bae17df23dcaaaea0e2d3616556f04baa23f8ee1357785c0f539bf97282d8ddff53953e155b72689bb73beb38c2da3d08de2a61e866684edfa10a6593885d  modules-initfs
+"

device/testing/device-xiaomi-merlin/deviceinfo

+# Reference: <https://postmarketos.org/deviceinfo>
+# Please use double quotes only. You can source this file in shell
+# scripts.
+
+deviceinfo_format_version="0"
+deviceinfo_name="Xiaomi Redmi Note 9"
+deviceinfo_manufacturer="Xiaomi"
+deviceinfo_codename="xiaomi-merlin"
+deviceinfo_year="2020"
+deviceinfo_dtb="mediatek/mt6768"
+deviceinfo_arch="aarch64"
+
+# Device related
+deviceinfo_chassis="handset"
+deviceinfo_keyboard="false"
+deviceinfo_external_storage="true"
+deviceinfo_screen_width="1080"
+deviceinfo_screen_height="2340"
+
+# Bootloader related
+deviceinfo_flash_method="fastboot"
+deviceinfo_kernel_cmdline="bootopt=64S3,32N2,64N2 buildvariant=userdebug"
+deviceinfo_generate_bootimg="true"
+deviceinfo_bootimg_qcdt="false"
+deviceinfo_bootimg_dtb_second="false"
+deviceinfo_flash_pagesize="2048"
+deviceinfo_header_version="2"
+deviceinfo_append_dtb="false"
+deviceinfo_flash_offset_dtb="0x0bc08000"
+deviceinfo_flash_offset_base="0x40078000"
+deviceinfo_flash_offset_kernel="0x00008000"
+deviceinfo_flash_offset_ramdisk="0x07c08000"
+deviceinfo_flash_offset_second="0xbff88000"
+deviceinfo_flash_offset_tags="0x0bc08000"

device/testing/device-xiaomi-merlin/modules-initfs

+# Remove this file if unnecessary (CHANGEME!)
+# This file shall contain a list of modules to be included in the initramfs,
+# so that they are available in early boot stages. In general, it should
+# include modules to support unlocking FDE (touchscreen, panel, etc),
+# USB networking, and telnet in the debug-shell.
+# The format is one module name per line. Lines starting with the character
+# '#', and empty lines are ignored. If there are multiple kernel variants
+# with different initramfs module requirements, one modules-initfs.$variant
+# file should be created for each of them.

device/testing/linux-xiaomi-merlin/APKBUILD

+# Reference: <https://postmarketos.org/vendorkernel>
+# Kernel config based on: arch/arm64/configs/(CHANGEME!)
+
+pkgname=linux-xiaomi-merlin
+pkgver=4.14.320
+pkgrel=0
+pkgdesc="Xiaomi Redmi Note 9 kernel fork"
+arch="aarch64"
+_carch="arm64"
+_flavor="xiaomi-merlin"
+url="https://kernel.org"
+license="GPL-2.0-only"
+options="!strip !check !tracedeps pmb:cross-native"
+makedepends="
+	bash
+	bc
+	bison
+	devicepkg-dev
+	findutils
+	flex
+	openssl-dev
+	perl
+	xz
+	dtc
+"
+
+# Source
+_repository="android_kernel_xiaomi_mt6768"
+_commit="210ab80b747a65c0a47c0ac59f117e6201fe2374"
+_config="config-$_flavor.$arch"
+source="
+	$pkgname-$_commit.tar.gz::https://github.com/LineageOS/$_repository/archive/$_commit.tar.gz
+	$_config
+	selinux_include_generated_headers.patch
+	use_system_cpio.patch
+	stop-inlining-blk_crypto_flock-and-ksm_flock.patch
+	use_system_dtc.patch
+"
+builddir="$srcdir/$_repository-$_commit"
+_outdir="out"
+
+prepare() {
+	default_prepare
+	REPLACE_GCCH=0 . downstreamkernel_prepare
+}
+
+build() {
+	unset LDFLAGS
+	make O="$_outdir" ARCH="$_carch" CC="${CC:-gcc}" \
+		KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-postmarketOS"
+}
+
+package() {
+	downstreamkernel_package "$builddir" "$pkgdir" "$_carch" \
+		"$_flavor" "$_outdir"
+
+	make dtbs_install O="$_outdir" ARCH="$_carch" \
+		INSTALL_DTBS_PATH="$pkgdir"/boot/dtbs
+}
+
+sha512sums="
+0e1e39e6b96f93ee6a4ccee2e3fc1821187a75bafc28ab68452f0e83ef6043a1ee9ea4c92ecd5e9b58e1711b5bd18110e6f45fa184caa3b7fc9ee2953703ad5d  linux-xiaomi-merlin-210ab80b747a65c0a47c0ac59f117e6201fe2374.tar.gz
+402a9fe0f0257df1962fd7f2cc1672dad27ff954477bff918adee1f4aed9d1901488f641f355cd5fc5b1d9a750baf4e4c7c842a4dd6b25724a364a4d52466bce  config-xiaomi-merlin.aarch64
+6ab9db01d35f7f5cc2c19ebe5f65a7dc479a1c68de587300cdde9a6c759d34610666c72f0f321cd450cf56c13df3b54a774e0f7ebdbf0f8608fbfd66b49d04e7  selinux_include_generated_headers.patch
+28975f5aac872eab10bdfe2b29a8685b70ddb0d105c6c66a26de88ac912573b430fa20901b65384c9cb99d9740cdff7804cfd95474176f93a5bffbccf8182208  use_system_cpio.patch
+e448a1093c09414be36333fbdb0d4a3bc5b59018d571b702c6607cb32927cf1563bf03aa1f2d502e6040490e0b26198dd8204306ebaad41be810ba2d47a2721c  stop-inlining-blk_crypto_flock-and-ksm_flock.patch
+c9e562403cd572c66def9adea434731b77617f7561f1ce1079e21e8f02e8fd9cc1febd7e52c581e8e4b1c4aca21c5ca8c5813d2006be13051048d681a640ab3d  use_system_dtc.patch
+"

device/testing/linux-xiaomi-merlin/selinux_include_generated_headers.patch

+Arm64 has generated headers that other arches don't, didn't investigate why this
+is able to compile in downstream (our upstream). Possibly due to out-of-tree build.
+Note the hacky relative include. May not work in more complicated setups.
+
+diff --git a/scripts/selinux/genheaders/Makefile b/scripts/selinux/genheaders/Makefile
+index e8c533140..62475f060 100644
+--- a/scripts/selinux/genheaders/Makefile
++++ b/scripts/selinux/genheaders/Makefile
+@@ -2,6 +2,8 @@
+ hostprogs-y	:= genheaders
+ HOST_EXTRACFLAGS += \
+ 	-I$(srctree)/include/uapi -I$(srctree)/include \
+-	-I$(srctree)/security/selinux/include
++	-I$(srctree)/security/selinux/include \
++	-I./arch/$(ARCH)/include/generated/uapi \
++	-I$(srctree)/arch/$(ARCH)/include/uapi
+ 
+ always		:= $(hostprogs-y)
+diff --git a/scripts/selinux/mdp/Makefile b/scripts/selinux/mdp/Makefile
+index e9c92db7e..09e626fa4 100644
+--- a/scripts/selinux/mdp/Makefile
++++ b/scripts/selinux/mdp/Makefile
+@@ -2,7 +2,9 @@
+ hostprogs-y	:= mdp
+ HOST_EXTRACFLAGS += \
+ 	-I$(srctree)/include/uapi -I$(srctree)/include \
+-	-I$(srctree)/security/selinux/include
++	-I$(srctree)/security/selinux/include \
++	-I./arch/$(ARCH)/include/generated/uapi \
++	-I$(srctree)/arch/$(ARCH)/include/uapi
+ 
+ always		:= $(hostprogs-y)
+ clean-files	:= policy.* file_contexts

device/testing/linux-xiaomi-merlin/stop-inlining-blk_crypto_flock-and-ksm_flock.patch

+Fixes the following build errors under GCC 11:
+
+  In file included from ../block/blk-crypto.c:14:
+  ../block/blk-crypto.c: In function 'blk_crypto_flock':
+  ../include/linux/keyslot-manager.h:101:13: error: inlining failed in call to 'always_inline' 'ksm_flock': function body not available
+    101 | inline void ksm_flock(struct keyslot_manager *ksm, unsigned int flags);
+        |             ^~~~~~~~~
+  ../block/blk-crypto.c:310:9: note: called from here
+    310 |         ksm_flock(ksm, flags);
+        |         ^~~~~~~~~~~~~~~~~~~~~
+
+  In file included from ../drivers/md/dm.c:27:
+  ../drivers/md/dm.c: In function 'dm_derive_raw_secret_callback':
+  ../include/linux/blk-crypto.h:35:13: error: inlining failed in call to 'always_inline' 'blk_crypto_flock': function body not available
+     35 | inline void blk_crypto_flock(struct keyslot_manager *ksm, unsigned int flags);
+        |             ^~~~~~~~~~~~~~~~
+  ../drivers/md/dm.c:2120:17: note: called from here
+   2120 |                 blk_crypto_flock(dev->bdev->bd_queue->ksm, SINGLE_DEPTH_NESTING);
+        |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+---
+diff --git a/block/blk-crypto.c b/block/blk-crypto.c
+index f15ed0b70ecd..703700d9bf9d 100644
+--- a/block/blk-crypto.c
++++ b/block/blk-crypto.c
+@@ -305,7 +305,7 @@ int blk_crypto_evict_key(struct request_queue *q,
+ }
+ EXPORT_SYMBOL_GPL(blk_crypto_evict_key);
+ 
+-inline void blk_crypto_flock(struct keyslot_manager *ksm, unsigned int flags)
++void blk_crypto_flock(struct keyslot_manager *ksm, unsigned int flags)
+ {
+ 	ksm_flock(ksm, flags);
+ }
+diff --git a/block/keyslot-manager.c b/block/keyslot-manager.c
+index 1ce66f66af20..95afcd9c4874 100644
+--- a/block/keyslot-manager.c
++++ b/block/keyslot-manager.c
+@@ -681,7 +681,7 @@ EXPORT_SYMBOL_GPL(keyslot_manager_derive_raw_secret);
+  * detection, set another lock sub-class could avoid it.
+  *
+  */
+-inline void ksm_flock(struct keyslot_manager *ksm, unsigned int flags)
++void ksm_flock(struct keyslot_manager *ksm, unsigned int flags)
+ {
+ 	ksm->lock_flags = flags;
+ }
+diff --git a/include/linux/blk-crypto.h b/include/linux/blk-crypto.h
+index 43d0dbbeb70f..30ba27226a22 100644
+--- a/include/linux/blk-crypto.h
++++ b/include/linux/blk-crypto.h
+@@ -32,7 +32,7 @@ int blk_crypto_start_using_mode(enum blk_crypto_mode_num crypto_mode,
+ int blk_crypto_evict_key(struct request_queue *q,
+ 			 const struct blk_crypto_key *key);
+ 
+-inline void blk_crypto_flock(struct keyslot_manager *ksm, unsigned int flags);
++void blk_crypto_flock(struct keyslot_manager *ksm, unsigned int flags);
+ 
+ 
+ #else /* CONFIG_BLK_INLINE_ENCRYPTION */
+diff --git a/include/linux/keyslot-manager.h b/include/linux/keyslot-manager.h
+index e247be8a5d43..dfb1d97d8fb6 100644
+--- a/include/linux/keyslot-manager.h
++++ b/include/linux/keyslot-manager.h
+@@ -98,7 +98,7 @@ int keyslot_manager_derive_raw_secret(struct keyslot_manager *ksm,
+ 				      unsigned int wrapped_key_size,
+ 				      u8 *secret, unsigned int secret_size);
+ 
+-inline void ksm_flock(struct keyslot_manager *ksm, unsigned int flags);
++void ksm_flock(struct keyslot_manager *ksm, unsigned int flags);
+ 
+ #endif /* CONFIG_BLK_INLINE_ENCRYPTION */
+ 

device/testing/linux-xiaomi-merlin/use_system_cpio.patch

+--- a/kernel/gen_kheaders.sh
++++ b/kernel/gen_kheaders.sh
+@@ -8,7 +8,7 @@
+ outdir="$(pwd)"
+ tarfile=$1
+ cpio_dir=$outdir/$tarfile.tmp
+-cpio=$KBUILD_SRC/tools/build/cpio
++cpio=cpio
+ dir_list="
+ include/

device/testing/linux-xiaomi-merlin/use_system_dtc.patch

+diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
+index b442d12ff2fe..5fe57a7d5320 100644
+--- a/scripts/Makefile.lib
++++ b/scripts/Makefile.lib
+@@ -312,7 +312,7 @@ $(obj)/%.dtb.S: $(obj)/%.dtb
+ quiet_cmd_dtc = DTC     $@
+ cmd_dtc = mkdir -p $(dir ${dtc-tmp}) ; \
+ 	$(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \
+-	$(srctree)/scripts/dtc/dtc_overlay -@ -O dtb -o $@ -b 0 \
++	dtc -@ -O dtb -o $@ -b 0 \
+ 		$(addprefix -i,$(dir $<) $(DTC_INCLUDE)) $(DTC_FLAGS) \
+ 		-d $(depfile).dtc.tmp $(dtc-tmp) ; \
+ 	cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile)
+-- 
+2.36.1
+