Commit Graph

29 Commits

Author SHA1 Message Date
Ruslan Bukin
dea8594f19 Fix a bug in assertion: entry flags also includes IOMMU_MAP_ENTRY_UNMAPPED.
The entry->flags field is initialized in iommu_gas_init_domain().

Reviewed by:	kib
Sponsored by:	Innovate DSbD
Differential Revision:	https://reviews.freebsd.org/D27235
2020-11-16 15:37:09 +00:00
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
f32f0095e9 o Add iommu de-initialization method for MSI interface.
o Add iommu_unmap_msi() to release the msi GAS entry.
o Provide default implementations for iommu init/deinit methods.

Reviewed by:	kib
Sponsored by:	Innovate DSbD
Differential Revision:	https://reviews.freebsd.org/D26906
2020-10-24 20:09:27 +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
6e9127d838 Add a per-each macro IOMMU_DOMAIN_UNLOAD_SLEEP which allows to sleep
during iommu guest address space entries unload.

Suggested by:	kib
Sponsored by:	Innovate DSbD
Differential Revision:	https://reviews.freebsd.org/D26722
2020-10-14 14:51:11 +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
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