anv: leave the top 4Gb of the high heap VMA unused
In
628c9ca9089789 I forgot to apply the same -4Gb of the high address
of the high heap VMA. This was previously computed in the
HIGH_HEAP_MAX_ADDRESS.
Many thanks to James for pointing this out.
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reported-by: Xiong, James <james.xiong@intel.com>
Fixes:
628c9ca9089789 ("anv: store heap address bounds when initializing physical device")
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>