CVS commit: src/sys/dev/pci

["Valeriy E. Ushakov" <uwe%netbsd.org@localhost>]

Module Name:    src
Committed By:   uwe
Date:           Thu Mar 17 23:05:01 UTC 2022

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

Log Message:
virtio_pci_bus_space_write_8: don't use bus_space_write_8.

The standard says:

  4.1.3.1 Driver Requirements: PCI Device Layout

  For device configuration access, the driver MUST use ... 32-bit
  wide and aligned accesses for ... 64-bit wide fields.  For 64-bit
  fields, the driver MAY access each of the high and low 32-bit parts
  of the field independently.

NB: "MAY" in this text refers to "independently" (i.e. the order of
accesses) not "32-bit" (which is restricted by the earlier "MUST").

Note also that virtio_{read,write}_device_config_8 in virtio.c already
uses two 32-bit accesses.


To generate a diff of this commit:
cvs rdiff -u -r1.35 -r1.36 src/sys/dev/pci/virtio_pci.c

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