mesa: Changes to 'master'

[Eric Anholt]

 src/mesa/drivers/dri/intel/intel_bufmgr_ttm.c |   47 ++++++++++++++++++++++++++
 src/mesa/drivers/dri/intel/intel_regions.c    |    5 ++
 2 files changed, 51 insertions(+), 1 deletion(-)

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

New commits:
commit c0e026c8090954ddb629a01cc1a93c61b2fc8298
Author: Eric Anholt <eric at anholt.net>
Date:   Tue Feb 5 11:00:04 2008 -0800

    [965] Bug 14314: assertion failure with with !AIGLX and depth=24 visual.

commit d14d36f9cc5be8b4c827653ee1245be00999357e
Author: Eric Anholt <eric at anholt.net>
Date:   Tue Feb 5 09:38:02 2008 -0800

    [965] Fix TTM relocation caching overzealousness.
    
    The failure mode that was a available was:
    reloc 1 -> target_buf
    exec: PRESUMED_OFFSET wrong, buffer migrates, r1 entry updated.
    reloc 2 -> target_buf
    exec: suppose buffer migrates again.  PRESUMED_OFFSET wrong. r2 entry updated.
    reloc 1 -> target_buf
    exec: suppose buffer doesn't migrate.  PRESUMED_OFFSET right. no relocations
          performed.  r1 has stale pointer at original location.
    
    Failures were reported with OGLconform's VBO test and SPECviewperf90, though
    I haven't confirmed that this fixes it.