K 10
svn:author
V 2
br
K 8
svn:date
V 27
2020-07-14T10:55:19.978742Z
K 7
svn:log
V 494
Start splitting-out the Intel DMAR busdma backend to a generic place,
so it can be used on other IOMMU systems.

Provide MI iommu_unit, iommu_domain and iommu_ctx structs in sys/iommu.h;
use them as a first member of MD dmar_unit, dmar_domain and dmar_ctx.

Change the namespace in DMAR backend: use iommu_ prefix instead of dmar_.

Move some macroses and function prototypes to sys/iommu.h.

Reviewed by:	kib
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D25574

END