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Diffstat (limited to 'arch/x86_64')
-rw-r--r--arch/x86_64/kernel/early_printk.c23
1 files changed, 10 insertions, 13 deletions
diff --git a/arch/x86_64/kernel/early_printk.c b/arch/x86_64/kernel/early_printk.c
index 484025f4f08..a8a6aa70d69 100644
--- a/arch/x86_64/kernel/early_printk.c
+++ b/arch/x86_64/kernel/early_printk.c
@@ -17,9 +17,6 @@
#define VGABASE ((void __iomem *)0xffffffff800b8000UL)
#endif
-#define MAX_YPOS max_ypos
-#define MAX_XPOS max_xpos
-
static int max_ypos = 25, max_xpos = 80;
static int current_ypos = 25, current_xpos = 0;
@@ -29,26 +26,26 @@ static void early_vga_write(struct console *con, const char *str, unsigned n)
int i, k, j;
while ((c = *str++) != '\0' && n-- > 0) {
- if (current_ypos >= MAX_YPOS) {
+ if (current_ypos >= max_ypos) {
/* scroll 1 line up */
- for (k = 1, j = 0; k < MAX_YPOS; k++, j++) {
- for (i = 0; i < MAX_XPOS; i++) {
- writew(readw(VGABASE + 2*(MAX_XPOS*k + i)),
- VGABASE + 2*(MAX_XPOS*j + i));
+ for (k = 1, j = 0; k < max_ypos; k++, j++) {
+ for (i = 0; i < max_xpos; i++) {
+ writew(readw(VGABASE+2*(max_xpos*k+i)),
+ VGABASE + 2*(max_xpos*j + i));
}
}
- for (i = 0; i < MAX_XPOS; i++)
- writew(0x720, VGABASE + 2*(MAX_XPOS*j + i));
- current_ypos = MAX_YPOS-1;
+ for (i = 0; i < max_xpos; i++)
+ writew(0x720, VGABASE + 2*(max_xpos*j + i));
+ current_ypos = max_ypos-1;
}
if (c == '\n') {
current_xpos = 0;
current_ypos++;
} else if (c != '\r') {
writew(((0x7 << 8) | (unsigned short) c),
- VGABASE + 2*(MAX_XPOS*current_ypos +
+ VGABASE + 2*(max_xpos*current_ypos +
current_xpos++));
- if (current_xpos >= MAX_XPOS) {
+ if (current_xpos >= max_xpos) {
current_xpos = 0;
current_ypos++;
}