tree 6e7e6f68b2288d7d38c12d486d9f17a303808ba8
parent c4b5fd3fb2058b650447372472ad24e2a989f9f6
author Alex Ivanov <lausgans@gmail.com> 1434347445 +0300
committer Helge Deller <deller@gmx.de> 1436557459 +0200

stifb: Implement hardware accelerated copyarea

This patch adds hardware assisted scrolling. The code is based upon the
following investigation: https://parisc.wiki.kernel.org/index.php/NGLE#Blitter

A simple 'time ls -la /usr/bin' test shows 1.6x speed increase over soft
copy and 2.3x increase over FBINFO_READS_FAST (prefer soft copy over
screen redraw) on Artist framebuffer.

Signed-off-by: Alex Ivanov <lausgans@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>