diff options
Diffstat (limited to 'drivers/video/console/vgacon.c')
| -rw-r--r-- | drivers/video/console/vgacon.c | 28 |
1 files changed, 22 insertions, 6 deletions
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c index e64d42e2449..f32b590730f 100644 --- a/drivers/video/console/vgacon.c +++ b/drivers/video/console/vgacon.c @@ -114,6 +114,7 @@ static int vga_512_chars; static int vga_video_font_height; static int vga_scan_lines; static unsigned int vga_rolled_over = 0; +static int vga_init_done; static int __init no_scroll(char *str) { @@ -190,7 +191,7 @@ static void vgacon_scrollback_init(int pitch) } } -static void __init vgacon_scrollback_startup(void) +static void vgacon_scrollback_startup(void) { vgacon_scrollback = alloc_bootmem(CONFIG_VGACON_SOFT_SCROLLBACK_SIZE * 1024); @@ -355,7 +356,7 @@ static int vgacon_scrolldelta(struct vc_data *c, int lines) } #endif /* CONFIG_VGACON_SOFT_SCROLLBACK */ -static const char __init *vgacon_startup(void) +static const char *vgacon_startup(void) { const char *display_desc = NULL; u16 saved1, saved2; @@ -523,7 +524,12 @@ static const char __init *vgacon_startup(void) vgacon_xres = ORIG_VIDEO_COLS * VGA_FONTWIDTH; vgacon_yres = vga_scan_lines; - vgacon_scrollback_startup(); + + if (!vga_init_done) { + vgacon_scrollback_startup(); + vga_init_done = 1; + } + return display_desc; } @@ -531,10 +537,20 @@ static void vgacon_init(struct vc_data *c, int init) { unsigned long p; - /* We cannot be loaded as a module, therefore init is always 1 */ + /* + * We cannot be loaded as a module, therefore init is always 1, + * but vgacon_init can be called more than once, and init will + * not be 1. + */ c->vc_can_do_color = vga_can_do_color; - c->vc_cols = vga_video_num_columns; - c->vc_rows = vga_video_num_lines; + + /* set dimensions manually if init != 0 since vc_resize() will fail */ + if (init) { + c->vc_cols = vga_video_num_columns; + c->vc_rows = vga_video_num_lines; + } else + vc_resize(c, vga_video_num_columns, vga_video_num_lines); + c->vc_scan_lines = vga_scan_lines; c->vc_font.height = vga_video_font_height; c->vc_complement_mask = 0x7700; |