fb: add hooks to handle KDB enter/exit
Add fb ops to handle enter/exit of the kernel debugger. If present, the
fb core will register them with KGDB and they'll be called when the
debugger is entered and exited. The new functions are responsible for
switching to an appropriate debug framebuffer and restoring the
interrupted state at exit time.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
diff --git a/drivers/video/console/fbcon.h b/drivers/video/console/fbcon.h
index 89a34688..6bd2e0c 100644
--- a/drivers/video/console/fbcon.h
+++ b/drivers/video/console/fbcon.h
@@ -74,6 +74,7 @@
int cursor_reset;
int blank_state;
int graphics;
+ int save_graphics; /* for debug enter/leave */
int flags;
int rotate;
int cur_rotate;