user/grub: add quirks system and radeon quirk (#49)

3 files changed, 42 insertions, 2 deletions

diff --git a/user/grub/APKBUILD b/user/grub/APKBUILD
index 24e998e53..1c1532278 100644
--- a/user/grub/APKBUILD
+++ b/user/grub/APKBUILD
@@ -40,6 +40,7 @@ source="https://ftp.gnu.org/gnu/grub/grub-$pkgver.tar.xz
 	x86_64_asm.patch
 	default-grub
 	update-grub
+	quirk-01_radeon_agpmode
 	"
 
 prepare() {
@@ -128,6 +129,11 @@ package() {
 	install -D -m755 "$srcdir"/update-grub "$pkgdir"/usr/sbin
 	# remove grub-install warning of missing directory
 	mkdir -p "$pkgdir"/usr/share/locale
+
+	for i in "$srcdir"/quirk-*; do
+		install -Dm755 "$i" \
+			"$pkgdir"/etc/grub-quirks.d/"${i##"$srcdir"/quirk-}"
+	done
 }
 
 bios() {
@@ -170,5 +176,6 @@ f2a7d9ab6c445f4e402e790db56378cecd6631b5c367451aa6ce5c01cd95b95c83c3dd24d6d4b857
 4e7394e0fff6772c89683039ccf81099ebbfe4f498e6df408977a1488fd59389b6e19afdbf0860ec271e2b2aea0df7216243dcc8235d1ca3af0e7f4d0a9d60a4  grub-xen-host_grub.cfg
 088455205f2f397d60e43eab19ed73994880ea1f442661f7975846cceaf2b112d92fd1341119d7dbfad3af2174dfd4d4721f31dead1ac35f4a3cb7c0d92f8a04  the-arch-everyone-uses-and-nobody-loves.patch
 8752b5e689ec3b7e1f438c7207adc517d7acb4f7d15fda2907bc9177883a686f23994c66641bfc0c7620365415972b5d8b74f511c13dd234f5f3461dda4bb445  x86_64_asm.patch
-af771faa02dcc56a0842c6b5244030d0778c80c365c6cafa7ed255346fb2d67e7e95cbb7bcdabe75c96d73ee8a1c9dd6f30e2feac708e621a64fee858b09db51  default-grub
-f08e29cb8bc344d62e37ffe003a74c1316c19aa329a4c2af94c99bfc90cb2968a37811244a7617cf1f1c393119f6398200d094b7758c19583cca390630c106ec  update-grub"
+1e6ae4a3884829864dbd789d3c3a0d43a5aa5f279c3ebb25f71775686e9236bc1c6295e5064ad32b384635987ee0814df95e9ca33bc57bc8e0aeb47bec34270e  default-grub
+f08e29cb8bc344d62e37ffe003a74c1316c19aa329a4c2af94c99bfc90cb2968a37811244a7617cf1f1c393119f6398200d094b7758c19583cca390630c106ec  update-grub
+78b7ec141a364994c7de181e47fedca820add9960c56c7adf4c14ee11d5249a0887fd788ecd5d24b9bdd102b7c40395181e2f7c3fe5ab795dd7c0057ba1115c5  quirk-01_radeon_agpmode"
diff --git a/user/grub/default-grub b/user/grub/default-grub
index e97e38395..3fb754c7e 100644
--- a/user/grub/default-grub
+++ b/user/grub/default-grub
@@ -10,3 +10,8 @@ GRUB_CMDLINE_LINUX_DEFAULT="ro"
 # Uncomment the following line if you do *not* want /boot/grub/grub.cfg to be
 # automatically regenerated when easy-kernel is upgraded.
 #ADELIE_MANUAL_CONFIG=1
+
+for i in /etc/grub-quirks.d/[0-9][0-9]*; do
+	[ -x "$i" ] || continue
+	. "$i"
+done
diff --git a/user/grub/quirk-01_radeon_agpmode b/user/grub/quirk-01_radeon_agpmode
new file mode 100644
index 000000000..879f1619e
--- /dev/null
+++ b/user/grub/quirk-01_radeon_agpmode
@@ -0,0 +1,28 @@
+#!/bin/sh
+# vi: noet:
+# Horst Burkhardt <horst@adelielinux.org> 2018
+# Max Rees <maxcrees@me.com> 2019
+#
+# AGP acceleration in the Radeon KMS driver has been broken on Apple PPC
+# since the 2.6 series, and most developers are in agreement that since
+# UniNorth is underdocumented, it probably won't ever be fixed. Disable
+# it on all Apple machines except ones where it is known not to apply.
+#
+# https://bts.adelielinux.org/show_bug.cgi?id=49
+set -e
+
+case "$(uname -m)" in
+ppc|ppc64)
+	if grep -q 'MacRISC[23]' /proc/cpuinfo; then
+		case "$(awk '$1 == "machine" { print $3 }' /proc/cpuinfo)" in
+		PowerBook1,1) ;;
+		PowerMac1,1) ;;
+		PowerMac1,2) ;;
+		PowerMac11,2) ;;
+		PowerMac12,1) ;;
+		RackMac3,1) ;;
+		iMac,1) ;;
+		*) export GRUB_CMDLINE_LINUX="radeon.agpmode=-1 $GRUB_CMDLINE_LINUX";;
+		esac
+	fi;;
+esac