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OpenCloudOS-Kernel
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125793 Commits

Author SHA1 Message Date
Joerg Roedel c8f0fb36bf AMD IOMMU: add stats counter for alloc_coherent requests 
Impact: see number of alloc_coherent requests in debugfs

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:59 +01:00
Joerg Roedel 55877a6bcd AMD IOMMU: add stats counter for unmap_sg requests 
Impact: see number of unmap_sg requests in debugfs

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:59 +01:00
Joerg Roedel d03f067a9d AMD IOMMU: add stats counter for map_sg requests 
Impact: see number of map_sg requests in debugfs

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:59 +01:00
Joerg Roedel 146a6917fc AMD IOMMU: add stats counter for unmap_single requests 
Impact: see number of unmap_single requests in debugfs

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:59 +01:00
Joerg Roedel 0f2a86f200 AMD IOMMU: add stats counter for map_single requests 
Impact: see number of map_single requests in debugfs

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:59 +01:00
Joerg Roedel da49f6df72 AMD IOMMU: add stats counter for completion wait events 
Impact: see number of completion wait events in debugfs

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:58 +01:00
Joerg Roedel 7f26508bbb AMD IOMMU: add init code for statistic collection 
Impact: create a new debugfs directory

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:58 +01:00
Joerg Roedel a9dddbe049 AMD IOMMU: add necessary header defines for stats counting 
Impact: add defines to make iommu stats collection configurable

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:58 +01:00
Joerg Roedel 2e117604a4 AMD IOMMU: add Kconfig entry for statistic collection code 
Impact: adds new Kconfig entry

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:57 +01:00
Joerg Roedel a4e267c88b AMD IOMMU: use dev_name in iommu_enable function 
Impact: cleanup

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:57 +01:00
Joerg Roedel edcb34da25 AMD IOMMU: use calc_devid in prealloc_protection_domains 
Impact: cleanup

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:57 +01:00
Joerg Roedel c226f85309 AMD IOMMU: convert amd_iommu_isolate to bool 
Impact: cleanup

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:57 +01:00
Joerg Roedel 0cfd7aa90b AMD IOMMU: convert iommu->need_sync to bool 
Impact: use bool instead of int for iommu->need_sync

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:57 +01:00
Joerg Roedel ab89672286 AMD IOMMU: use dev_name instead of self-build print_devid 
Impact: use generic dev_name instead of own function

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:56 +01:00
Joerg Roedel 1ac4cbbc5e AMD IOMMU: allocate a new protection for hotplugged devices 
Impact: also hotplug devices benefit from device isolation

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:56 +01:00
Joerg Roedel e2dc14a2a6 AMD IOMMU: add a domain flag for default domains 
Impact: adds a new protection domain flag

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:56 +01:00
Joerg Roedel 26961efe0d AMD IOMMU: register functions for the IOMMU API 
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:56 +01:00
Joerg Roedel 645c4c8d72 AMD IOMMU: add domain address lookup function for IOMMU API 
Impact: add a generic function to lockup addresses in protection domains

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:56 +01:00
Joerg Roedel eb74ff6cc0 AMD IOMMU: add domain unmap function for IOMMU API 
Impact: add a generic function to unmap pages into protection domains

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:56 +01:00
Joerg Roedel c6229ca649 AMD IOMMU: add domain map function for IOMMU API 
Impact: add a generic function to map pages into protection domains

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:56 +01:00
Joerg Roedel 01106066a6 AMD IOMMU: add device attach function for IOMMU API 
Impact: add a generic function to attach devices to protection domains

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:56 +01:00
Joerg Roedel 684f288884 AMD IOMMU: add device detach function for IOMMU API 
Impact: add a generic function to detach devices from protection domains

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:55 +01:00
Joerg Roedel 98383fc301 AMD IOMMU: add domain destroy function for IOMMU API 
Impact: add a generic function for releasing protection domains

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:55 +01:00
Joerg Roedel c156e347d6 AMD IOMMU: add domain init function for IOMMU API 
Impact: add a generic function for allocation protection domains

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:55 +01:00
Joerg Roedel 6d98cd8043 AMD IOMMU: add domain cleanup helper function 
Impact: add a function to remove all devices from a domain

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:55 +01:00
Joerg Roedel e275a2a0fc AMD IOMMU: add device notifier callback 
Impact: inform IOMMU about state change of a device in the driver core

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:55 +01:00
Joerg Roedel 355bf553ed AMD IOMMU: add device detach helper functions 
Impact: add helper functions to detach a device from a domain

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:55 +01:00
Joerg Roedel f1179dc005 AMD IOMMU: rename set_device_domain function 
Impact: rename set_device_domain() to attach_device()

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:54 +01:00
Joerg Roedel 863c74ebd0 AMD IOMMU: add device reference counting for protection domains 
Impact: know how many devices are assigned to a domain

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:54 +01:00
Joerg Roedel 5b28df6f43 AMD IOMMU: add checks for dma_ops domain to dma_ops functions 
Impact: detect when a driver uses a device assigned otherwise

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:54 +01:00
Joerg Roedel 9fdb19d64c AMD IOMMU: add protection domain flags 
Imapct: add a new struct member to 'struct protection_domain'

When using protection domains for dma_ops and KVM its better to know for
which subsystem it was allocated. Add a flags member to struct
protection domain for that purpose.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:54 +01:00
Joerg Roedel 43f4960983 AMD IOMMU: add iommu_flush_domain function 
Impact: add a function to flush a domain id on every IOMMU

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:54 +01:00
Joerg Roedel 9e919012e3 AMD IOMMU: don't remove protection domain from iommu_pd_list 
Impact: save unneeded logic to add and remove domains to the list

The removal of a protection domain from the iommu_pd_list is not
necessary. Another benefit is that we save complexity because we don't
have to readd it later when the device no longer uses the domain.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:54 +01:00
Joerg Roedel 237b6f3329 AMD IOMMU: move invalidation command building to a separate function 
Impact: refactoring of iommu_queue_inv_iommu_pages

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:54 +01:00
Joerg Roedel 8d201968e1 AMD IOMMU: refactor completion wait handling into separate functions 
Impact: split one function into three

The separate functions are required synchronize commands across all
hardware IOMMUs in the system.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:54 +01:00
Joerg Roedel a2acfb7579 AMD IOMMU: add domain id free function 
Impact: add code to release a domain id

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:53 +01:00
Joerg Roedel 86db2e5d47 AMD IOMMU: make dma_ops_free_pagetable generic 
Impact: change code to free pagetables from protection domains

The dma_ops_free_pagetable function can only free pagetables from
dma_ops domains. Change that to free pagetables of pure protection
domains.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:53 +01:00
Joerg Roedel 38e817febe AMD IOMMU: rename iommu_map to iommu_map_page 
Impact: function rename

The iommu_map function maps only one page. Make this clear in the
function name.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:53 +01:00
Mike Day cdc7b83726 intel-iommu: fix bit shift at DOMAIN_FLAG_P2P_MULTIPLE_DEVICES 
Signed-off-by: Mike Day <ncmike@ncultra.org>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:08 +01:00
Joerg Roedel e4754c96cf VT-d: remove now unused intel_iommu_found function 
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:08 +01:00
Joerg Roedel a8bcbb0de4 VT-d: register functions for the IOMMU API 
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:08 +01:00
Joerg Roedel d14d65777c VT-d: adapt domain iova_to_phys function for IOMMU API 
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:08 +01:00
Joerg Roedel dde57a210d VT-d: adapt domain map and unmap functions for IOMMU API 
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:08 +01:00
Joerg Roedel 4c5478c94e VT-d: adapt device attach and detach functions for IOMMU API 
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:08 +01:00
Joerg Roedel 5d450806eb VT-d: adapt domain init and destroy functions for IOMMU API 
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:07 +01:00
Joerg Roedel 19de40a847 KVM: change KVM to use IOMMU API 
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:07 +01:00
Joerg Roedel 1aaf118352 select IOMMU_API when DMAR and/or AMD_IOMMU is selected 
These two IOMMUs can implement the current version of this API. So
select the API if one or both of these IOMMU drivers is selected.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:10:09 +01:00
Joerg Roedel fc2100eb4d add frontend implementation for the IOMMU API 
This API can be used by KVM for accessing different types of IOMMUs to
do device passthrough to guests. Beside that this API can also be used
by device drivers to map non-linear host memory into dma-linear
addresses to prevent sgather-gather DMA. UIO may be another user for
this API.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
 2009-01-03 14:10:09 +01:00
Joerg Roedel 4a77a6cf6d introcude linux/iommu.h for an iommu api 
This patch introduces the API to abstract the exported VT-d functions
for KVM into a generic API. This way the AMD IOMMU implementation can
plug into this API later.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:10:09 +01:00
Joerg Roedel c4fa386428 KVM: rename vtd.c to iommu.c 
Impact: file renamed

The code in the vtd.c file can be reused for other IOMMUs as well. So
rename it to make it clear that it handle more than VT-d.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:10:09 +01:00