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17 commits

Author SHA1 Message Date
Ruslan Bukin
cb9050dd21 Move the rid variable to the generic iommu context. 
It could be used in various IOMMU platforms, not only DMAR.

Reviewed by:	kib
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D26373
 2020-09-10 14:12:25 +00:00
Ruslan Bukin
0424f19e9e Move dmar_domain_unload_task to busdma_iommu.c. 
Reviewed by:	kib
Sponsored by:	DARPA/AFRL
Differential Revision:	https://reviews.freebsd.org/D25972
 2020-08-06 12:49:25 +00:00
Ruslan Bukin
16696f6057 Add iommu_domain constructor and destructor. 
Reviewed by:	kib
Sponsored by:	DARPA/AFRL
Differential Revision:	https://reviews.freebsd.org/D25956
 2020-08-06 08:48:23 +00:00
Ruslan Bukin
c4cd699010 o Add machine/iommu.h and include MD iommu headers from it, 
so we don't ifdef for every arch in busdma_iommu.c;
o No need to include specialreg.h for x86, remove it.

Requested by:	andrew
Reviewed by:	kib
Sponsored by:	DARPA/AFRL
Differential Revision:	https://reviews.freebsd.org/D25957
 2020-08-05 19:11:31 +00:00
Ruslan Bukin
b64dca2b6f Remove unneeded cast to struct iommu_domain *. 
Sponsored by:	DARPA, AFRL
 2020-08-04 20:54:12 +00:00
Mark Johnston
96ad26eefb Remove free_domain() and uma_zfree_domain(). 
These functions were introduced before UMA started ensuring that freed
memory gets placed in domain-local caches.  They no longer serve any
purpose since UMA now provides their functionality by default.  Remove
them to simplyify the kernel memory allocator interfaces a bit.

Reviewed by:	cem, kib
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D25937
 2020-08-04 13:58:36 +00:00
Ruslan Bukin
0eed04c802 Add iommu_domain_map_ops virtual table with map/unmap methods 
so x86 can support Intel DMAR and AMD IOMMU simultaneously.

Reviewed by:	kib
Sponsored by:	DARPA/AFRL
Differential Revision:	https://reviews.freebsd.org/D25894
 2020-07-31 23:02:17 +00:00
Ruslan Bukin
c8597a1f9f o Don't include headers from iommu.h, include them from the header 
consumers instead;
o Order includes properly.

Reviewed by:	kib
Sponsored by:	DARPA/AFRL
Differential Revision:	https://reviews.freebsd.org/D25878
 2020-07-29 22:08:54 +00:00
Ruslan Bukin
1b0c9c21d9 o Move iommu_set_buswide_ctx, iommu_is_buswide_ctx to 
the generic iommu busdma backend;
o Move bus_dma_iommu_set_buswide, bus_dma_iommu_load_ident
  prototypes to iommu.h.

Reviewed by:	kib
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D25866
 2020-07-29 13:23:27 +00:00
Ruslan Bukin
ea4c01156a o Move the buswide_ctxs bitmap to iommu_unit and rename related functions. 
o Rename bus_dma_dmar_load_ident() as well.

Reviewed by:	kib
Sponsored by:	DARPA/AFRL
Differential Revision:	https://reviews.freebsd.org/D25852
 2020-07-28 16:08:14 +00:00
Ruslan Bukin
15f6baf445 Rename DMAR flags: 
o DMAR_DOMAIN_* -> IOMMU_DOMAIN_*
o DMAR_PGF_* -> IOMMU_PGF_*

Reviewed by:	kib
Sponsored by:	DARPA/AFRL
Differential Revision:	https://reviews.freebsd.org/D25812
 2020-07-26 12:29:22 +00:00
Ruslan Bukin
357149f037 o Make the _hw_iommu sysctl node non-static; 
o Move the dmar sysctl knobs to _hw_iommu_dmar.

Reviewed by:	kib
Sponsored by:	DARPA/AFRL
Differential Revision:	https://reviews.freebsd.org/D25807
 2020-07-25 21:37:07 +00:00
Ruslan Bukin
9c843a409b o Move iommu gas prototypes, DMAR flags to iommu.h; 
o Move hw.dmar sysctl node to iommu_gas.c.

Reviewed by:	kib
Sponsored by:	DARPA/AFRL
Differential Revision:	https://reviews.freebsd.org/D25802
 2020-07-25 19:07:12 +00:00
Ruslan Bukin
3024e8af1e Move Intel GAS to dev/iommu/ as now a part of generic iommu framework. 
Reviewed by:	kib
Sponsored by:	DARPA/AFRL
Differential Revision:	https://reviews.freebsd.org/D25799
 2020-07-25 11:34:50 +00:00
Ruslan Bukin
62ad310c93 Split-out the Intel GAS (Guest Address Space) management component 
from Intel DMAR support, so it can be used on other IOMMU systems.

Reviewed by:	kib
Sponsored by:	DARPA/AFRL
Differential Revision:	https://reviews.freebsd.org/D25743
 2020-07-25 09:28:38 +00:00
Ruslan Bukin
1238a28d15 Move sys/iommu.h to dev/iommu/ as a part of generic IOMMU busdma backend. 
Reviewed by:	kib
Sponsored by:	DARPA/AFRL
Differential Revision:	https://reviews.freebsd.org/D25750
 2020-07-21 13:50:10 +00:00
Ruslan Bukin
f2b2f31707 Move the Intel DMAR busdma backend to a generic place so 
it can be used on other IOMMU systems.

Reviewed by:	kib
Sponsored by:	DARPA/AFRL
Differential Revision:	https://reviews.freebsd.org/D25720
 2020-07-21 10:38:51 +00:00