R6xx/R7xx EXA/Xv: properly deal with running out of vertex buffer space

As noted by mhopf, if VGT_MAX/MIN_INDX, etc. regs change, you need to re-emit
CB blocks to avoid a hang.  So, just set the VGT_MAX_INDX to a reasonably large value
in the default state and don't touch them when drawing.  When we run out of VB space,
just draw the current buffer, grab a new one, and continue.

0 files changed, 0 insertions, 0 deletions