atyfb: fix alignment for block writes
Block writes require 64 byte alignment. Since block writes could be used with SGRAM or WRAM also refine the memory type detection to check for either type before deciding to use the 64 byte alignment. Signed-off-by: NVille Syrjala <syrjala@sci.fi> Tested-by: NMikulas Patocka <mpatocka@redhat.com> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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