From cb51bff8173ec7c45dee4852a9be0e7c67fe2426 Mon Sep 17 00:00:00 2001
From: "K. Lange" <klange@toaruos.org>
Date: Sat, 3 Jun 2023 10:28:06 +0900
Subject: [PATCH] boot: add option for 'lfbwc', and enable it by default

---
 boot/config.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/boot/config.c b/boot/config.c
index 35686497..d2d6a632 100644
--- a/boot/config.c
+++ b/boot/config.c
@@ -101,6 +101,10 @@ int kmain() {
 			"Migrates the ramdisk from tarball to an in-memory",
 			"temporary filesystem at boot. Needed for packages.");
 
+	BOOT_OPTION(_lfbwc,       1, "WC framebuffer",
+			"Enables write-combining PAT configuration for",
+			"framebuffers. Toggle if graphics are slow.");
+
 	while (1) {
 		/* Loop over rendering the menu */
 		show_menu();
@@ -163,6 +167,10 @@ int kmain() {
 			strcat(cmdline, "sharedps2 ");
 		}
 
+		if (_lfbwc) {
+			strcat(cmdline, "lfbwc ");
+		}
+
 		if (!boot_edit) break;
 		if (boot_editor()) break;