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4010b0192d
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5582 Commits

Author SHA1 Message Date
Ingo Molnar
4010b0192d Merge branch 'linus' into core/urgent 2009-01-04 10:59:36 +01:00
Linus Torvalds
7d3b56ba37 Merge branch 'cpus4096-for-linus-3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 
* 'cpus4096-for-linus-3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (77 commits)
  x86: setup_per_cpu_areas() cleanup
  cpumask: fix compile error when CONFIG_NR_CPUS is not defined
  cpumask: use alloc_cpumask_var_node where appropriate
  cpumask: convert shared_cpu_map in acpi_processor* structs to cpumask_var_t
  x86: use cpumask_var_t in acpi/boot.c
  x86: cleanup some remaining usages of NR_CPUS where s/b nr_cpu_ids
  sched: put back some stack hog changes that were undone in kernel/sched.c
  x86: enable cpus display of kernel_max and offlined cpus
  ia64: cpumask fix for is_affinity_mask_valid()
  cpumask: convert RCU implementations, fix
  xtensa: define __fls
  mn10300: define __fls
  m32r: define __fls
  h8300: define __fls
  frv: define __fls
  cris: define __fls
  cpumask: CONFIG_DISABLE_OBSOLETE_CPUMASK_FUNCTIONS
  cpumask: zero extra bits in alloc_cpumask_var_node
  cpumask: replace for_each_cpu_mask_nr with for_each_cpu in kernel/time/
  cpumask: convert mm/
  ...
 2009-01-03 12:04:39 -08:00
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
Cyrill Gorcunov
ab14398abd x86: setup_per_cpu_areas() cleanup 
Impact: cleanup

__alloc_bootmem and __alloc_bootmem_node do panic
for us in case of fail so no need for additional
checks here.

Also lets use pr_*() macros for printing.

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
 2009-01-03 19:15:42 +01:00
Mike Travis
80855f7361 cpumask: use alloc_cpumask_var_node where appropriate 
Impact: Reduce inter-node memory traffic.

Reduces inter-node memory traffic (offloading the global system bus)
by allocating referenced struct cpumasks on the same node as the
referring struct.

Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
 2009-01-03 19:15:40 +01:00
Rusty Russell
2fdf66b491 cpumask: convert shared_cpu_map in acpi_processor* structs to cpumask_var_t 
Impact: Reduce memory usage, use new API.

This is part of an effort to reduce structure sizes for machines
configured with large NR_CPUS.  cpumask_t gets replaced by
cpumask_var_t, which is either struct cpumask[1] (small NR_CPUS) or
struct cpumask * (large NR_CPUS).

(Changes to powernow-k* by <travis>.)

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
 2009-01-03 19:15:40 +01:00
Rusty Russell
ee943a82b6 x86: use cpumask_var_t in acpi/boot.c 
Impact: reduce stack size, use new API.

Replace cpumask_t with cpumask_var_t.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
 2009-01-03 19:15:39 +01:00
Mike Travis
9628937d5b x86: cleanup some remaining usages of NR_CPUS where s/b nr_cpu_ids 
Impact: Reduce future system panics due to cpumask operations using NR_CPUS

Insure that code does not look at bits >= nr_cpu_ids as when cpumasks are
allocated based on nr_cpu_ids, these extra bits will not be defined.

Also some other minor updates:

   * change in to use cpu accessor function set_cpu_present() instead of
     directly accessing cpu_present_map w/cpu_clear() [arch/x86/kernel/reboot.c]

   * use cpumask_of() instead of &cpumask_of_cpu() [arch/x86/kernel/reboot.c]

   * optimize some cpu_mask_to_apicid_and functions.

Signed-off-by: Mike Travis <travis@sgi.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
 2009-01-03 19:00:55 +01:00
Mike Travis
730cf27246 x86: enable cpus display of kernel_max and offlined cpus 
Impact: enables /sys/devices/system/cpu/{kernel_max,offline} user interface

By setting total_cpus, the drivers/base/cpu.c will display the
values of kernel_max (NR_CPUS-1) and the offlined cpu map.

Signed-off-by: Mike Travis <travis@sgi.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
 2009-01-03 18:59:47 +01:00
Mike Travis
7eb1955336 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumask into merge-rr-cpumask 
Conflicts:
	arch/x86/kernel/io_apic.c
	kernel/rcuclassic.c
	kernel/sched.c
	kernel/time/tick-sched.c

Signed-off-by: Mike Travis <travis@sgi.com>
[ mingo@elte.hu: backmerged typo fix for io_apic.c ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
 2009-01-03 18:53:31 +01:00
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