• Dave Airlie's avatar
    drm/radeon/kms: add initial colortiling support. · e024e110
    Dave Airlie authored
    
    
    This adds new set/get tiling interfaces where the pitch
    and macro/micro tiling enables can be set. Along with
    a flag to decide if this object should have a surface when mapped.
    
    The only thing we need to allocate with a mapped surface should be
    the frontbuffer. Note rotate scanout shouldn't require one, and
    back/depth shouldn't either, though mesa needs some fixes.
    
    It fixes the TTM interfaces along Thomas's suggestions, and I've tested
    the surface stealing code with two X servers and not seen any lockdep issues.
    
    I've stopped tiling the fbcon frontbuffer, as I don't see there being
    any advantage other than testing, I've left the testing commands in there,
    just flip the fb_tiled to true in radeon_fb.c
    
    Open: Can we integrate endian swapping in with this?
    
    Future features:
    texture tiling - need to relocate texture registers TXOFFSET* with tiling info.
    
    This also merges Michel's cleanup surfaces regs at init time patch
    even though it makes sense on its own, this patch really relies on it.
    
    Some PowerMac firmwares set up a tiling surface at the beginning of VRAM
    which messes us up otherwise.
    that patch is:
    Signed-off-by: default avatarMichel Dänzer <daenzer@vmware.com>
    Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
    e024e110
radeon_drm.h 31 KB