From: Mikulas Patocka <mpatocka@redhat.com>
Date: Thu, 23 Jan 2014 19:40:02 +0000 (-0500)
Subject: atyfb: set FBINFO_READS_FAST
X-Git-Tag: firefly_0821_release~176^2~4117^2~36
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=c38882e37e300dcd0b37793999909cdace359373;p=firefly-linux-kernel-4.4.55.git

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 5d7672cf2c70..c3d0074a32db 100644
--- 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")) {