mesa: Changes to 'master'

[Eric Anholt]

 src/mesa/drivers/dri/intel/intel_bufmgr_ttm.c |  188 ++++++++++++++++++++++++--
 src/mesa/drivers/dri/intel/intel_bufmgr_ttm.h |    3 
 src/mesa/drivers/dri/intel/intel_context.c    |   17 +-
 src/mesa/drivers/dri/intel/intel_context.h    |    5 
 src/mesa/drivers/dri/intel/intel_screen.c     |   11 +
 5 files changed, 209 insertions(+), 15 deletions(-)

commit diffs at http://gitweb.freedesktop.org/?p=mesa/mesa.git;a=summary

New commits:
commit fe91c05b5494b889c8adda77ff562712116d2e59
Author: Eric Anholt <eric at anholt.net>
Date:   Wed Mar 5 14:14:54 2008 -0800

    [intel] Add a driconf option to cache freed buffer objects for reuse.
    
    This is defaulted off as it has potentially large memory costs for a modest
    performance gain.  Ideally we will improve DRM performance to the point where
    this optimization is not worth the memory cost in any case, or find some
    middle ground in caching only limited numbers of certain buffers.  For now,
    this provides a modest 4% improvement in openarena on GM965 and 10% in openarena
    on GM945.