Messages in this thread Patch in this message | | | Date | Thu, 23 Jan 2014 13:18:18 -0500 (EST) | From | Mikulas Patocka <> | Subject | [PATCH 1/10] matroxfb: 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 5.4 3.6 24bpp 5.1 3.0 16bpp 4.9 2.5 8bpp 4.9 2.0
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
--- 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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