CVS commit: src/sys/dev/pci

["Jason R Thorpe" <thorpej%netbsd.org@localhost>]

Module Name:    src
Committed By:   thorpej
Date:           Sat Mar 21 16:56:00 UTC 2020

Modified Files:
        src/sys/dev/pci: if_vge.c

Log Message:
Use the 64-bit DMA tag, if available, with some constraints:
- The data buffers can come from anywhere in the 64-bit region, but
  the upper 16 bits of the data buffer address is stored in a single
  register, so just treat that as 0 and create a 48-bit restricted
  DMA tag.
- The descriptor address registers share a single register for the
  upper 32-bits, so enforce a 4G boundary when allocating memory
  for the descriptors.


To generate a diff of this commit:
cvs rdiff -u -r1.79 -r1.80 src/sys/dev/pci/if_vge.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.