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Author SHA1 Message Date
Linus Torvalds
269b012321 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu 
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu: (89 commits)
  AMD IOMMU: remove now unnecessary #ifdefs
  AMD IOMMU: prealloc_protection_domains should be static
  kvm/iommu: fix compile warning
  AMD IOMMU: add statistics about total number of map requests
  AMD IOMMU: add statistics about allocated io memory
  AMD IOMMU: add stats counter for domain tlb flushes
  AMD IOMMU: add stats counter for single iommu domain tlb flushes
  AMD IOMMU: add stats counter for cross-page request
  AMD IOMMU: add stats counter for free_coherent requests
  AMD IOMMU: add stats counter for alloc_coherent requests
  AMD IOMMU: add stats counter for unmap_sg requests
  AMD IOMMU: add stats counter for map_sg requests
  AMD IOMMU: add stats counter for unmap_single requests
  AMD IOMMU: add stats counter for map_single requests
  AMD IOMMU: add stats counter for completion wait events
  AMD IOMMU: add init code for statistic collection
  AMD IOMMU: add necessary header defines for stats counting
  AMD IOMMU: add Kconfig entry for statistic collection code
  AMD IOMMU: use dev_name in iommu_enable function
  AMD IOMMU: use calc_devid in prealloc_protection_domains
  ...
 2009-01-03 12:03:52 -08:00
Linus Torvalds
61420f59a5 Merge branch 'cputime' of git://git390.osdl.marist.edu/pub/scm/linux-2.6 
* 'cputime' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
  [PATCH] fast vdso implementation for CLOCK_THREAD_CPUTIME_ID
  [PATCH] improve idle cputime accounting
  [PATCH] improve precision of idle time detection.
  [PATCH] improve precision of process accounting.
  [PATCH] idle cputime accounting
  [PATCH] fix scaled & unscaled cputime accounting
 2009-01-03 11:56:24 -08:00
Joerg Roedel
065a6d68c7 AMD IOMMU: remove now unnecessary #ifdefs 
The #ifdef's are no longer necessary when the iommu-api and the amd
iommu updates are merged together.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 16:44:15 +01:00
Joerg Roedel
b0a11f44ab Merge branches 'iommu/api' and 'iommu/amd' into for-linus 2009-01-03 16:43:44 +01:00
Jaswinder Singh Rajput
0e93dd8835 AMD IOMMU: prealloc_protection_domains should be static 
Impact: cleanup, reduce kernel size a bit, avoid sparse warning

Fixes sparse warning:
arch/x86/kernel/amd_iommu.c:1299:6: warning: symbol 'prealloc_protection_domains' was not declared. Should it be static?

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 16:41:18 +01:00
Joerg Roedel
8ecaf8f19f AMD IOMMU: add statistics about total number of map requests 
Impact: see total number of map requests in debugfs

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:12:00 +01:00
Joerg Roedel
5774f7c5fe AMD IOMMU: add statistics about allocated io memory 
Impact: see amount of allocated io memory in debugfs

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:12:00 +01:00
Joerg Roedel
18811f55d4 AMD IOMMU: add stats counter for domain tlb flushes 
Impact: see number of domain tlb flushes in debugfs

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:59 +01:00
Joerg Roedel
f57d98ae69 AMD IOMMU: add stats counter for single iommu domain tlb flushes 
Impact: see number of single iommu domain tlb flushes in debugfs

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:59 +01:00
Joerg Roedel
c1858976f5 AMD IOMMU: add stats counter for cross-page request 
Impact: see number of requests for more than one page in debugfs

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:59 +01:00
Joerg Roedel
5d31ee7e08 AMD IOMMU: add stats counter for free_coherent requests 
Impact: see number of free_coherent requests in debugfs

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
 2009-01-03 14:11:59 +01:00
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
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