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authorAlex Ivanov <lausgans@gmail.com>2015-06-15 08:50:45 +0300
committerHelge Deller <deller@gmx.de>2015-07-10 21:44:19 +0200
commitcb908ed3495496b9973a2b9ed1a60f43933fdf01 (patch)
tree6e7e6f68b2288d7d38c12d486d9f17a303808ba8 /arch/parisc/kernel/traps.c
parentc4b5fd3fb2058b650447372472ad24e2a989f9f6 (diff)
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>
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