tree cb419b1d79b15c97ec26f42afa89406b39ee948a
parent e8c74a1e1657f6a03e038fb72b50bfd994771850
author Kenneth Graunke <kenneth@whitecape.org> 1556323751 -0700
committer Kenneth Graunke <kenneth@whitecape.org> 1557269156 -0700

i965: Fix BRW_MEMZONE_LOW_4G heap size.

The STATE_BASE_ADDRESS "Size" fields can only hold 0xfffff in pages,
and 0xfffff * 4096 = 4294963200, which is 1 page shy of 4GB.

So we can't use the top page.

Fixes: 01058a55229 i965: Add virtual memory allocator infrastructure to brw_bufmgr.
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>