This moves 32x32 font size limitation checking down to drivers, so that...
fbcon can allow large fonts.
We still keep a limitation to 64x128 pixels so as to have a simple bounded
allocation for con_font_get and in the userland kbd tool. That glyph size
will however be enough to have 128x36 characters on a "16/9 8K display".
Signed-off-by: Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>
Index: linux-6.0/drivers/tty/vt/vt.c
===================================================================
--- linux-6.0.orig/drivers/tty/vt/vt.c
+++ linux-6.0/drivers/tty/vt/vt.c
@@ -4575,17 +4575,20 @@ void reset_palette(struct vc_data *vc)
-#define max_font_size 65536
+#define max_font_width 64
+#define max_font_height 128
+#define max_font_glyphs 512
+#define max_font_size (max_font_glyphs*max_font_width*max_font_height)