From: "Jan Beulich" <JBeulich@novell.com>
Allow early printk code to take advantage of the full size of the screen, not
just the first 25 lines.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Acked-by: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---
arch/x86_64/kernel/early_printk.c | 13 ++++++++++---
1 files changed, 10 insertions(+), 3 deletions(-)
diff -puN arch/x86_64/kernel/early_printk.c~allow-early-printk-to-use-more-than-25-lines arch/x86_64/kernel/early_printk.c
--- 25/arch/x86_64/kernel/early_printk.c~allow-early-printk-to-use-more-than-25-lines 2005-05-15 03:04:55.000000000 -0700
+++ 25-akpm/arch/x86_64/kernel/early_printk.c 2005-05-15 03:04:55.000000000 -0700
@@ -2,20 +2,24 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/string.h>
+#include <linux/tty.h>
#include <asm/io.h>
#include <asm/processor.h>
/* Simple VGA output */
#ifdef __i386__
+#include <asm/setup.h>
#define VGABASE (__ISA_IO_base + 0xb8000)
#else
+#include <asm/bootsetup.h>
#define VGABASE ((void __iomem *)0xffffffff800b8000UL)
#endif
-#define MAX_YPOS 25
-#define MAX_XPOS 80
+#define MAX_YPOS max_ypos
+#define MAX_XPOS max_xpos
+static int max_ypos = 25, max_xpos = 80;
static int current_ypos = 1, current_xpos = 0;
static void early_vga_write(struct console *con, const char *str, unsigned n)
@@ -196,7 +200,10 @@ int __init setup_early_printk(char *opt)
} else if (!strncmp(buf, "ttyS", 4)) {
early_serial_init(buf);
early_console = &early_serial_console;
- } else if (!strncmp(buf, "vga", 3)) {
+ } else if (!strncmp(buf, "vga", 3)
+ && SCREEN_INFO.orig_video_isVGA == 1) {
+ max_xpos = SCREEN_INFO.orig_video_cols;
+ max_ypos = SCREEN_INFO.orig_video_lines;
early_console = &early_vga_console;
}
early_console_initialized = 1;
_