[PATCH 3/7] fbcon: Call set_par per fb_info once during init
From: Antonino A. Daplas <hidden>
Date: 2005-03-20 13:10:40
Currently, fbcon will unconditionally do set_par's on all info's mapped to each console. This results in repetetive hardware initialization when one is enough. Fix this by skipping all fbdev's that already underwent initialization. From: Antonino Daplas <redacted> Signed-off-by: Antonino Daplas <redacted> --- fbcon.c | 16 ++++++++++++---- fbcon.h | 3 +++ 2 files changed, 15 insertions(+), 4 deletions(-) diff -Nru a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
--- a/drivers/video/console/fbcon.c 2005-03-16 07:07:15 +08:00
+++ b/drivers/video/console/fbcon.c 2005-03-16 07:39:24 +08:00@@ -599,9 +599,10 @@ ops->currcon = fg_console; - if (info->fbops->fb_set_par) + if (info->fbops->fb_set_par && !(ops->flags & FBCON_FLAGS_INIT)) info->fbops->fb_set_par(info); + ops->flags |= FBCON_FLAGS_INIT; ops->graphics = 0; if (vc)
@@ -900,6 +901,7 @@ static void fbcon_init(struct vc_data *vc, int init) { struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; + struct fbcon_ops *ops; struct vc_data **default_mode = vc->vc_display_fg; struct vc_data *svc = *default_mode; struct display *t, *p = &fb_display[vc->vc_num];
@@ -950,6 +952,8 @@ new_cols = info->var.xres / vc->vc_font.width; new_rows = info->var.yres / vc->vc_font.height; vc_resize(vc, new_cols, new_rows); + + ops = info->fbcon_par; /* * We must always set the mode. The mode of the previous console * driver could be in the same resolution but we are using different
@@ -957,10 +961,14 @@ * * We need to do it in fbcon_init() to prevent screen corruption. */ - if (CON_IS_VISIBLE(vc) && info->fbops->fb_set_par) - info->fbops->fb_set_par(info); + if (CON_IS_VISIBLE(vc)) { + if (info->fbops->fb_set_par && + !(ops->flags & FBCON_FLAGS_INIT)) + info->fbops->fb_set_par(info); + ops->flags |= FBCON_FLAGS_INIT; + } - ((struct fbcon_ops *) info->fbcon_par)->graphics = 0; + ops->graphics = 0; if ((cap & FBINFO_HWACCEL_COPYAREA) && !(cap & FBINFO_HWACCEL_DISABLED))
diff -Nru a/drivers/video/console/fbcon.h b/drivers/video/console/fbcon.h
--- a/drivers/video/console/fbcon.h 2005-03-16 07:07:15 +08:00
+++ b/drivers/video/console/fbcon.h 2005-03-16 07:39:24 +08:00@@ -18,6 +18,8 @@ #include <asm/io.h> +#define FBCON_FLAGS_INIT 1 + /* * This is the interface between the low-level console driver and the * low-level frame buffer device
@@ -69,6 +71,7 @@ int cursor_reset; int blank_state; int graphics; + int flags; char *cursor_data; }; /* -------------------------------------------------------
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