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20 Commits

Author SHA1 Message Date
Ruslan Bukin
f593116991 Add device_t member to struct iommu. 
This is needed on arm64 for the interface between iommu framework
and iommu controller drivers.

Reviewed by:	kib
Sponsored by:	Innovate DSbD
Differential Revision:	https://reviews.freebsd.org/D27229
 2020-11-16 15:29:52 +00:00
Ruslan Bukin
94dfb28ee0 Assign the reserved apic region (GAS entry) to the iommu domain msi_entry. 
Requested by:	kib
Reviewed by:	kib
Sponsored by:	Innovate DSbD
Differential Revision:	https://reviews.freebsd.org/D26859
 2020-10-19 15:50:58 +00:00
Ruslan Bukin
e707c8be4e Manage MSI iommu pages. 
This allows the interrupt controller driver only need a small change to
create a map for the page the device will write to raise an interrupt.

Submitted by:	andrew
Reviewed by:	kib
Sponsored by:	Innovate DSbD
Differential Revision:	https://reviews.freebsd.org/D26705
 2020-10-19 13:10:21 +00:00
Ruslan Bukin
f23f7d3a15 Split-out Guest Address Space (GAS) macroses to a separate header. 
Sponsored by:	Innovate DSbD
 2020-10-15 13:47:52 +00:00
Ruslan Bukin
e12686ec23 Split-out iommu type definitions to a separate header. 
Reviewed by:	kib
Sponsored by:	Innovate DSbD
Differential Revision:	https://reviews.freebsd.org/D26780
 2020-10-14 21:22:23 +00:00
Ruslan Bukin
f5cafae199 Add iommu_get_ctx_domain() that allows to get iommu domain for a given 
iommu context.

Submitted by:	andrew
Sponsored by:	Innovate DSbD
 2020-10-14 14:12:15 +00:00
Ruslan Bukin
066e1d1af3 Rename a header protection macro. 
Sponsored by:	DARPA, AFRL
 2020-10-14 13:39:50 +00:00
Ruslan Bukin
72479f6bf9 Add iommu_get_dev_ctx() helper that allows to instantiate an iommu context 
for a given device_t.

Submitted by:	andrew
Reviewed by:	kib
Sponsored by:	DARPA, AFRL
 2020-10-09 13:11:14 +00:00
Ruslan Bukin
025730aad6 o Rename acpi_iommu_get_dma_tag() -> iommu_get_dma_tag(). 
This function isn't ACPI dependent and we may use it on FDT systems
  as well.
o Don't repeat the function declaration, include iommu.h instead.

Reviewed by:	andrew, kib
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D26584
 2020-09-29 15:10:56 +00:00
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
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
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
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