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atyfb: set FBINFO_READS_FAST

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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>
This commit is contained in:
Mikulas Patocka 2014-01-23 14:40:02 -05:00 committed by Tomi Valkeinen
parent c29dd8696d
commit c38882e37e
1 changed files with 2 additions and 1 deletions
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3
drivers/video/aty/atyfb_base.c
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@ -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")) {