Merge branch 'kms-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb

* 'kms-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb:
  kgdb,docs: Update the kgdb docs to include kms
  drm_fb_helper: Preserve capability to use atomic kms
  i915: when kgdb is active display compression should be off
  drm/i915: use new fb debug hooks
  drm: add KGDB/KDB support
  fb: add hooks to handle KDB enter/exit
  kgdboc: Add call backs to allow kernel mode switching
  vt,console,kdb: automatically set kdb LINES variable
  vt,console,kdb: implement atomic console enter/leave functions

2 files changed, 27 insertions, 0 deletions

diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index b0a3fa00706d..3b3f5749af92 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -2342,6 +2342,30 @@ static int fbcon_blank(struct vc_data *vc, int blank, int mode_switch)
         return 0;
 }
 
+static int fbcon_debug_enter(struct vc_data *vc)
+{
+        struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]];
+        struct fbcon_ops *ops = info->fbcon_par;
+
+        ops->save_graphics = ops->graphics;
+        ops->graphics = 0;
+        if (info->fbops->fb_debug_enter)
+                info->fbops->fb_debug_enter(info);
+        fbcon_set_palette(vc, color_table);
+        return 0;
+}
+
+static int fbcon_debug_leave(struct vc_data *vc)
+{
+        struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]];
+        struct fbcon_ops *ops = info->fbcon_par;
+
+        ops->graphics = ops->save_graphics;
+        if (info->fbops->fb_debug_leave)
+                info->fbops->fb_debug_leave(info);
+        return 0;
+}
+
 static int fbcon_get_font(struct vc_data *vc, struct console_font *font)
 {
         u8 *fontdata = vc->vc_font.data;
@@ -3276,6 +3300,8 @@ static const struct consw fb_con = {
         .con_screen_pos         = fbcon_screen_pos,
         .con_getxy              = fbcon_getxy,
         .con_resize             = fbcon_resize,
+        .con_debug_enter        = fbcon_debug_enter,
+        .con_debug_leave        = fbcon_debug_leave,
 };
 
 static struct notifier_block fbcon_event_notifier = {
diff --git a/drivers/video/console/fbcon.h b/drivers/video/console/fbcon.h
index 89a346880ec0..6bd2e0c7f209 100644
--- a/drivers/video/console/fbcon.h
+++ b/drivers/video/console/fbcon.h
@@ -74,6 +74,7 @@ struct fbcon_ops {
         int    cursor_reset;
         int    blank_state;
         int    graphics;
+        int    save_graphics; /* for debug enter/leave */
         int    flags;
         int    rotate;
         int    cur_rotate;