[PATCH 3/3] fbcon: use __iowrite{32/64} to speedup the framebuffer console scrolling

[Jean-Christophe PLAGNIOL-VILLARD]

this devide the time by 4 on x86

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj at jcrosoft.com>
---
 drivers/video/fbconsole.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/video/fbconsole.c b/drivers/video/fbconsole.c
index b261f1704..b5e951e23 100644
--- a/drivers/video/fbconsole.c
+++ b/drivers/video/fbconsole.c
@@ -6,6 +6,7 @@
 #include <gui/image_renderer.h>
 #include <gui/graphic_utils.h>
 #include <linux/font.h>
+#include <linux/io.h>
 
 enum state_t {
 	LIT,				/* Literal input */
@@ -202,7 +203,7 @@ static void printchar(struct fbc_priv *priv, int c)
 
 		buf = gui_screen_render_buffer(priv->sc);
 
-		memcpy(buf, buf + line_height, line_height * priv->rows);
+		__iowrite64_copy(buf, buf + line_height, (line_height * priv->rows) >> 2);
 		memset(buf + line_height * priv->rows, 0, line_height);
 
 		gu_screen_blit(priv->sc);
-- 
2.11.0