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 5.4 3.6
24bpp 5.1 3.0
16bpp 4.9 2.5
8bpp 4.9 2.0
Signed-off-by: Mikulas Patocka <[email protected]>
---
drivers/video/matrox/matroxfb_base.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
Index: linux-3.12.1/drivers/video/matrox/matroxfb_base.c
===================================================================
--- linux-3.12.1.orig/drivers/video/matrox/matroxfb_base.c 2013-11-18
18:14:25.000000000 +0100
+++ linux-3.12.1/drivers/video/matrox/matroxfb_base.c 2013-11-23
17:58:47.000000000 +0100
@@ -1773,7 +1773,8 @@ static int initMatrox2(struct matrox_fb_
FBINFO_HWACCEL_FILLRECT | /* And
fillrect */
FBINFO_HWACCEL_IMAGEBLIT | /* And
imageblit */
FBINFO_HWACCEL_XPAN | /* And we
support both horizontal */
- FBINFO_HWACCEL_YPAN; /* And
vertical panning */
+ FBINFO_HWACCEL_YPAN | /* And
vertical panning */
+ FBINFO_READS_FAST;
minfo->video.len_usable &= PAGE_MASK;
fb_alloc_cmap(&minfo->fbcon.cmap, 256, 1);
--
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