CVS commit: src/sys/dev/acpi

["Nick Hudson" <skrll%netbsd.org@localhost>]

Module Name:    src
Committed By:   skrll
Date:           Sat Oct 24 07:21:01 UTC 2020

Modified Files:
        src/sys/dev/acpi: virtio_acpi.c

Log Message:
Use the 64bit DMA tag if its valid.

There appears to be a bug in virtio / ld_virtio and bounce buffers that
was triggered when the bus_dmatag_subregion code on arm64 was fixed to
correctly create a new tag for the 32bit tag vs the system (64bit) tag.
This change avoids the bug.

PR/55737: Apparent bug in evbarm64 DMA code causes filesystem corruption


To generate a diff of this commit:
cvs rdiff -u -r1.2 -r1.3 src/sys/dev/acpi/virtio_acpi.c

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