atyfb: set FBINFO_READS_FAST

Set FBINFO_READS_FAST so that the console code uses scrolling instead of
rewriting. This improves scrolling speed.

A time to do ls -la /usr/bin:
	original patched
32bpp	4.9	3.6
24bpp	4.9	2.9
16bpp	4.9	2.1
8bpp	4.9	1.7

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

diff --git a/drivers/video/aty/atyfb_base.c b/drivers/video/aty/atyfb_base.c
index 5d7672cf2c70df2e1bef31110bda346a4d65c6a0..c3d0074a32db750c01d4d0ed4e72153499c86c69 100644 (file)
--- a/drivers/video/aty/atyfb_base.c
+++ b/drivers/video/aty/atyfb_base.c
@@ -2653,7 +2653,8 @@ static int aty_init(struct fb_info *info)
                      FBINFO_HWACCEL_IMAGEBLIT |
                      FBINFO_HWACCEL_FILLRECT  |
                      FBINFO_HWACCEL_COPYAREA  |
-                     FBINFO_HWACCEL_YPAN;
+                     FBINFO_HWACCEL_YPAN      |
+                     FBINFO_READS_FAST;
 
 #ifdef CONFIG_PMAC_BACKLIGHT
        if (M64_HAS(G3_PB_1_1) && of_machine_is_compatible("PowerBook1,1")) {