• Jakob Bornecrantz's avatar
    drm: Add dirty ioctl and property · 884840aa
    Jakob Bornecrantz authored
    This commit adds a ioctl and property to allow userspace
    to notify the kernel that a framebuffer has changed. Instead
    of snooping the command stream this allows finer grained
    tracking of which areas have changed.
    
    The primary user for this functionality is virtual hardware
    like the vmware svga device, but also Xen hardware likes to
    be notify. There is also real hardware like DisplayLink and
    DisplayPort that might take advantage of this ioctl.
    Signed-off-by: default avatarJakob Bornecrantz <jakob@vmware.com>
    Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
    884840aa
drm_crtc.c 68.1 KB