system/easy-kernel-power8-64k: new package

system/easy-kernel-power8-64k/APKBUILD

+# Contributor: A. Wilcox <awilfox@adelielinux.org>
+# Maintainer: Adelie Platform Group <adelie-devel@lists.adelielinux.org>
+_pkgname=easy-kernel-power8-64k
+pkgver=4.14.56
+pkgrel=9
+pkgname=$_pkgname-$pkgver-mc$pkgrel
+_kflavour=power8-64k
+pkgdesc="The Linux kernel, packaged for POWER8 and POWER9 computers (with 64K page size)"
+url="https://kernel.org/"
+arch="ppc64"
+options="!check !dbg !strip !tracedeps"
+license="GPL-2.0-only"
+depends=""
+makedepends="bc gzip lzop openssl-dev xz"
+install=""
+provides="easy-kernel-power8=$pkgver-r$pkgrel"
+subpackages="$_pkgname-modules-$pkgver-mc$pkgrel:modules"
+source="https://cdn.kernel.org/pub/linux/kernel/v4.x/linux-4.14.tar.xz
+	https://distfiles.adelielinux.org/source/linux-4.14-mc$pkgrel.patch.xz
+	ast-endianness.patch
+	config-ppc64
+	futex-cmpxchg.patch
+	"
+builddir="$srcdir/linux-4.14"
+
+prepare() {
+	default_prepare
+	cd "$srcdir"
+	cat linux-4.14-mc$pkgrel.patch.xz | unxz -> linux-4.14-mc$pkgrel.patch
+	cd "$builddir"
+	patch -Np1 <../linux-4.14-mc$pkgrel.patch
+	cd "$srcdir"
+	cp config-$CARCH linux-4.14/.config
+	cp -pr linux-4.14 linux-src
+}
+
+build() {
+	cd "$builddir"
+	make LDFLAGS=""
+}
+
+package() {
+	cd "$builddir"
+	mkdir -p "$pkgdir"/boot
+	make INSTALL_PATH="$pkgdir"/boot \
+		INSTALL_MOD_PATH="$pkgdir" \
+		install modules_install
+
+	if [ -f "$pkgdir"/boot/vmlinuz ]; then
+		mv "$pkgdir"/boot/vmlinuz \
+			"$pkgdir"/boot/vmlinuz-$pkgver-mc$pkgrel-easy-$_kflavour
+	fi
+	if [ -f "$pkgdir"/boot/vmlinux ]; then
+		mv "$pkgdir"/boot/vmlinux \
+			"$pkgdir"/boot/vmlinux-$pkgver-mc$pkgrel-easy-$_kflavour
+	fi
+
+	# This allows coexistence of both kernel flavours on media.
+	mv "$pkgdir"/boot/System.map "$pkgdir"/boot/System.map-$_kflavour
+
+	install -D "$builddir"/include/config/kernel.release \
+		"$pkgdir"/usr/share/kernel/easy-$pkgver-mc$pkgrel-$_kflavour/kernel.release
+}
+
+modules() {
+	pkgdesc="Modules / device drivers for easy-kernel"
+	provides="easy-kernel-power8-64k-modules=$pkgver-r$pkgrel"
+	autodeps=0  # modules should not depend on src just for symlink
+	mkdir -p "$subpkgdir"/lib
+	mv "$pkgdir"/lib/modules "$subpkgdir"/lib/
+	rm "$subpkgdir"/lib/modules/$pkgver-mc$pkgrel-easy-$_kflavour/build
+	rm "$subpkgdir"/lib/modules/$pkgver-mc$pkgrel-easy-$_kflavour/source
+	ln -s "../../../usr/src/linux-$pkgver-mc$pkgrel-p8" \
+		"$subpkgdir"/lib/modules/$pkgver-mc$pkgrel-easy-$_kflavour/build
+	ln -s "../../../usr/src/linux-$pkgver-mc$pkgrel-p8" \
+		"$subpkgdir"/lib/modules/$pkgver-mc$pkgrel-easy-$_kflavour/source
+}
+
+sha512sums="77e43a02d766c3d73b7e25c4aafb2e931d6b16e870510c22cef0cdb05c3acb7952b8908ebad12b10ef982c6efbe286364b1544586e715cf38390e483927904d8  linux-4.14.tar.xz
+f76ae636da104c6f1d299a6aff18a5aa1166c9c06efbdf3270c911f26adc1760fbb4271ca2338ced47c7787c2ff54880e1945e2d6cf25fda880b5f735029d7a8  linux-4.14-mc9.patch.xz
+e41d9111219342ad13367902242444ecdd847a93575c3f9709d6c6a075bc650f4a15be9db1a8798435fc0a0b56d41705829bfe0d2c2d88f8d1c28931e27ef5be  ast-endianness.patch
+615b66b937aac3b2e5081db5bb0abb51bf32b9b1ba1b2d143d6b29187754ba83428a55944e8c81d58cab32d9f7d2909dc5c6156e9fda25bdad5c9e9db3335004  config-ppc64
+64486a4f53046a69f727cecd8c39400b50c2d2b15e3b5ca8c18b8249d25990f3a872ec064800ba3d190f9d25b4518899b9ea3675920f487108102856d6beb51e  futex-cmpxchg.patch"

system/easy-kernel-power8-64k/ast-endianness.patch

+Author: Elizabeth Myers <elizabeth@adelielinux.org>
+
+I'm certain this fix is wrong fwiw, but it's the best I could come with
+
+--- linux-4.14/drivers/gpu/drm/ast/ast_fb.c.old	2017-11-12 12:46:13.000000000 -0600
++++ linux-4.14/drivers/gpu/drm/ast/ast_fb.c	2018-06-30 20:54:43.530000000 -0500
+@@ -109,9 +109,30 @@
+ 		unmap = true;
+ 	}
+ 	for (i = y; i <= y2; i++) {
++		int copy_width = x2 - x + 1;
+ 		/* assume equal stride for now */
+ 		src_offset = dst_offset = i * afbdev->afb.base.pitches[0] + (x * bpp);
+-		memcpy_toio(bo->kmap.virtual + src_offset, afbdev->sysram + src_offset, (x2 - x + 1) * bpp);
++		switch (bpp) {
++			case 4:
++				while (copy_width) {
++					iowrite32(*(u32 *)(afbdev->sysram + src_offset),
++						    bo->kmap.virtual + src_offset);
++					src_offset += 4;
++					copy_width--;
++				}
++				break;
++			case 2:
++				while (copy_width) {
++					iowrite16(*(u16 *)(afbdev->sysram + src_offset),
++						   bo->kmap.virtual + src_offset);
++					src_offset += 2;
++					copy_width--;
++				}
++				break;
++			default:
++				memcpy_toio(bo->kmap.virtual + src_offset, afbdev->sysram + src_offset, (x2 - x + 1) * bpp);
++				break;
++		}
+ 
+ 	}
+ 	if (unmap)

system/easy-kernel-power8-64k/futex-cmpxchg.patch

+diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
+index 9f2b75f..d75d8ea 100644
+--- a/arch/powerpc/Kconfig
++++ b/arch/powerpc/Kconfig
+@@ -190,6 +190,7 @@ config PPC
+ 	select HAVE_FTRACE_MCOUNT_RECORD
+ 	select HAVE_FUNCTION_GRAPH_TRACER
+ 	select HAVE_FUNCTION_TRACER
++	select HAVE_FUTEX_CMPXCHG if FUTEX
+ 	select HAVE_GCC_PLUGINS
+ 	select HAVE_GENERIC_GUP
+ 	select HAVE_HW_BREAKPOINT		if PERF_EVENTS && (PPC_BOOK3S || PPC_8xx)