fbdev: add FBIOCOPYAREA ioctl
Based on the patch authored by Ali Gholami Rudi at https://lkml.org/lkml/2009/7/13/153 Provide an ioctl for userspace applications, but only if this operation is hardware accelerated (otherwide it does not make any sense). Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com> bcm2708_fb: Add ioctl for reading gpu memory through dma video: bcm2708_fb: Add compat_ioctl support. When using a 64 bit kernel with 32 bit userspace we need compat ioctl handling for FBIODMACOPY as one of the parameters is a pointer. Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
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