xf86-video-ati: Changes to 'cayman_accel'

[Alex Deucher]

New branch 'cayman_accel' available with the following commits:
commit 04eb2cfade6a355e7262b3b3cbb1cbc971ba0c43
Author: Alex Deucher <alexdeucher at gmail.com>
Date:   Wed Mar 2 20:48:19 2011 -0500

    cayman: add spi state to default state
    
    changed in e3145801b80fd4be4cf770128876e86e89bda66f
    
    Signed-off-by: Alex Deucher <alexdeucher at gmail.com>

commit 0a29bf23751fd56ff6d33fa7bb00465724fa205c
Author: Alex Deucher <alexdeucher at gmail.com>
Date:   Wed Mar 2 20:44:19 2011 -0500

    cayman: first pass at exa/Xv shaders
    
    Main differences with evergreen:
    - 4-way rather than 5-way
    - END_OF_PROGRAM bit removed from CF istructions, use
    CF_INST_END instead.
    - MEGA_FETCH* fields removed from VTX commands
    - no more VC, all fetches go through the TC
    
    Signed-off-by: Alex Deucher <alexdeucher at gmail.com>

commit 13a033edb747c7bec3f7443d31942d1eb38407a0
Author: Alex Deucher <alexdeucher at gmail.com>
Date:   Wed Mar 2 20:39:38 2011 -0500

    cayman: add a default state function
    
    The rest of the state functions can be shared
    with evergreen.  I've noted where there are
    differences.
    
    Signed-off-by: Alex Deucher <alexdeucher at gmail.com>

commit 3482a7b96d11afe27ce3556f1f64615b81c28ae2
Author: Alex Deucher <alexdeucher at gmail.com>
Date:   Wed Mar 2 20:20:56 2011 -0500

    cayman: add 3D register headers
    
    Signed-off-by: Alex Deucher <alexdeucher at gmail.com>

commit 66f686d3f5d02e04cb22fba23625200aae288daf
Author: Alex Deucher <alexdeucher at gmail.com>
Date:   Wed Mar 2 20:13:50 2011 -0500

    kms/cayman: stub out exa support
    
    Just fallbacks for now.
    
    Signed-off-by: Alex Deucher <alexdeucher at gmail.com>