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authorGeert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>2007-10-16 01:29:48 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-16 09:43:21 -0700
commit2ce32e15a16312d2c29c8bb188bf95bc821fdab6 (patch)
tree8dc477b46bf8bf7d0a93253a67160fc6ef9799b6 /drivers/edac/Makefile
parent15e4d001ef5b14f56fa51665952cbffc0001762f (diff)
ps3fb: fix possible overlap of GPU command buffer and frame buffer
ps3fb: In the case of non-fullscreen video modes, there was a partial overlap of the GPU command buffer and the frame buffer. Fix and cleanup various issues with overlap and alignment: - Move the GPU command buffer from the beginning to the end of video memory - Exclude the GPU command buffer from the actual frame buffer memory - Align the start of the virtual frame buffer to PAGE_SIZE instead of to 64 KiB, and don't waste memory if it's already aligned (for fullscreen modes) - Take into account the alignment when checking memory requirements and maximum number of frames - Make sure fb_fix_screeninfo.smem_start always points to the virtual frame buffer start, so we don't have to compensate for that in ps3fb_mmap() Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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