Commit graph

149480 commits

Author SHA1 Message Date
Boaz Harrosh
03306793e6 [SCSI] libosd: Use REQ_QUIET requests.
libosd has it's own sense decoding and printout. Don't
let scsi_lib duplicate that printout. (Which is done wrong
in regard to osd commands)

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-06-10 09:00:32 -05:00
Boaz Harrosh
021e2230d6 [SCSI] osduld: use filp_open() when looking up an osd-device
This patch was inspired by Al Viro, for simplifying and fixing the
retrieval of osd-devices by in-kernel users, eg: file systems.
In-Kernel users, now, go through the same path user-mode does by
opening a file on the osd char-device and though holding a reference
to both the device and the Module.

A file pointer was added to the osd_dev structure which is now
allocated for each user. The internal osd_dev is no longer exposed
outside of the uld. I wanted to do that for a long time so each
libosd user can have his own defaults on the device.

The API is left the same, so user code need not change.

It is no longer needed to open/close a file handle on the osd
char-device from user-mode, before mounting an exofs on it.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
CC: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-06-10 09:00:25 -05:00
Boaz Harrosh
fc2fac5b5f [SCSI] libosd: Define an osd_dev wrapper to retrieve the request_queue
libosd users that need to work with bios, must sometime use
the request_queue associated with the osd_dev. Make a wrapper for
that, and convert all in-tree users.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-06-10 09:00:13 -05:00
Boaz Harrosh
62f469b596 [SCSI] libosd: osd_req_{read,write} takes a length parameter
For supporting of chained-bios we can not inspect the first
bio only, as before. Caller shall pass the total length of the
request, ie. sum_bytes(bio-chain).

Also since the bio might be a chain we don't set it's direction
on behalf of it's callers. The bio direction should be properly
set prior to this call. So fix a couple of write users that now
need to set the bio direction properly

[In this patch I change both library code and user sites at
 exofs, to make it easy on integration. It should be submitted
 via James's scsi-misc tree.]

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
CC: Jeff Garzik <jeff@garzik.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-06-10 08:59:52 -05:00
Boaz Harrosh
546881aea9 [SCSI] libosd: Let _osd_req_finalize_data_integrity receive number of out_bytes
_osd_req_finalize_data_integrity was trying to deduce the number of
out_bytes from passed osd_request->out.bio. This is wrong when
the bio is chained. The caller of _osd_req_finalize_data_integrity
has more ready available information and should just pass it.

Also in the light of future support for CDB-continuation segment this is
a better solution.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-06-10 08:58:20 -05:00
Boaz Harrosh
0e35afbc8b [SCSI] libosd: osd_req_{read,write}_kern new API
By popular demand, define usefull wrappers for osd_req_read/write
that recieve kernel pointers. All users had their own.

Also remove these from exofs

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-06-10 08:57:07 -05:00
Boaz Harrosh
de6b20385b [SCSI] libosd: Better printout of OSD target system information
Shorten out the Attributes names.
Align all results on column 24.
Print system ID in a new line.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-06-10 08:54:10 -05:00
Boaz Harrosh
29191b9203 [SCSI] libosd: OSD2r05: Attribute definitions
Some New revision 5 Attribute definitions.
Some missing definitions of Attributes and pages

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-06-10 08:54:07 -05:00
Boaz Harrosh
feb6118d4e [SCSI] libosd: OSD2r05: Additional command enums
Add all constant definitions of new OSD commands added in
revision 4 & 5. Mainly for creating snapshots and clones.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-06-10 08:54:04 -05:00
Mark Brown
236e6723be ASoC: Fix lm4857 control
Commit 4eaa9819dc changed semantics of
private_value member of kcontrol. This resulted in inability to control
amplifier and subsequently in very low output volume.

Tested-by: Johannes Schauer <josch@pyneo.org>
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-06-10 13:55:34 +01:00
Bartlomiej Zolnierkiewicz
ad7c52d098 ide: re-implement ide_pci_init_one() on top of ide_pci_init_two()
There should be no functional changes caused by this patch.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2009-06-10 14:37:21 +02:00
Bartlomiej Zolnierkiewicz
5df3bc2d35 ide: unexport ide_find_dma_mode()
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2009-06-10 14:37:21 +02:00
Hugh Dickins
5f4417a156 ide: fix PowerMac bootup oops
PowerMac bootup with CONFIG_IDE=y oopses in ide_pio_cycle_time():
because "ide: try to use PIO Mode 0 during probe if possible" causes
pmac_ide_set_pio_mode() to be called before drive->id has been set.

Bart points out other places which now need drive->id set earlier,
so follow his advice to allocate it in ide_port_alloc_devices()
(using kzalloc_node, without error message, as when allocating drive)
and memset it for reuse in ide_port_init_devices_data().

Fixed in passing: ide_host_alloc() was missing ide_port_free_devices()
from an error path.

Signed-off-by: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Cc: Joao Ramos <joao.ramos@inov.pt>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2009-06-10 14:37:20 +02:00
Avi Kivity
09f8ca74ae KVM: Prevent overflow in largepages calculation
If userspace specifies a memory slot that is larger than 8 petabytes, it
could overflow the largepages variable.

Cc: stable@kernel.org
Signed-off-by: Avi Kivity <avi@redhat.com>
2009-06-10 15:18:16 +03:00
Avi Kivity
ac04527f79 KVM: Disable large pages on misaligned memory slots
If a slots guest physical address and host virtual address unequal (mod
large page size), then we would erronously try to back guest large pages
with host large pages.  Detect this misalignment and diable large page
support for the trouble slot.

Cc: stable@kernel.org
Signed-off-by: Avi Kivity <avi@redhat.com>
2009-06-10 15:17:58 +03:00
Alan Cox
7654db1a92 ata_piix: Remove stale comment
Combined mode pci quirk hacks went away - so the table to keep in sync
no longer exists.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-06-10 07:50:18 -04:00
Alan Cox
347979a034 ata_piix: Turn on hotplugging support for older chips
We can't do this for the later ones as they have all sorts of magic boot
time stuff that needs reviewing and the like. However we can do it for the
older ones and it turns out we need to as some IBM docking stations have a
second PIIX series device in them and without this change you can't use it
very well

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-06-10 07:50:17 -04:00
Tejun Heo
d50ce07d6f ahci: misc cleanups for EM stuff
Make the following EM related cleanups.

* Use msleep(1) instead of udelay(100) and reduce retry count to 5.

* s/MAX_SLOTS/EM_MAX_SLOTS/, s/MAX_RETRY/EM_MAX_RETRY/

* Make EM constants enums as suggested by Jeff.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: David Milburn <dmilburn@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-06-10 07:50:17 -04:00
Jens Axboe
437681800b [libata] get rid of ATA_MAX_QUEUE loop in ata_qc_complete_multiple() v2
We very rarely (if ever) complete more than one command in the
sactive mask at the time, even for extremely high IO rates. So
looping over the entire range of possible tags is pointless,
instead use __ffs() to just find the completed tags directly.

Updated to clear the tag from the done_mask instead of shifting
done_mask down as suggested by From: Tejun Heo <htejun@gmail.com>
Verified with a user space tester to produce the same results.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-06-10 07:50:17 -04:00
Robert Hancock
31f80112cc sata_sil: enable 32-bit PIO
32-bit PIO seems to work fine on sata_sil hardware (tested on SiI3114) and is
listed as OK in the Silicon Image datasheets. Enable it.

Signed-off-by: Robert Hancock <hancockrwd@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-06-10 07:50:17 -04:00
Alexander Beregalov
f35b5e7c06 sata_sx4: speed up ECC initialization
ECC initialization takes too long. It writes zeroes by portions
of 4 byte, it takes more than 6 minutes on my machine to initialize
512Mb ECC DIMM module. Change portion to 128Kb - it significantly
reduces initialization time.

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-06-10 07:50:17 -04:00
Sergei Shtylyov
2102d74973 libata-sff: avoid byte swapping in ata_sff_data_xfer()
Handling of the trailing byte in ata_sff_data_xfer() is suboptimal bacause:

- it always initializes the padding buffer to 0 which is not really needed in
  both the read and write cases;

- it has to use memcpy() to transfer a single byte from/to the padding buffer;

- it uses io{read|write}16() accessors which swap bytes on the big endian CPUs
  and so have to additionally convert the data from/to the little endian format
  instead of using io{read|write}16_rep() accessors which are not supposed to
  change the byte ordering.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-06-10 07:50:16 -04:00
Jeff Garzik
4da646b7b5 [libata] ahci: use less error-prone array initializers
Also, remove unneeded prototype.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-06-10 07:50:16 -04:00
Yong Wang
dc81081b2d perf_counter/x86: Fix the model number of Intel Core2 processors
Fix the model number of Intel Core2 processors according to the
documentation: Intel Processor Identification with the CPUID
Instruction: http://www.intel.com/support/processors/sb/cs-009861.htm

Signed-off-by: Yong Wang <yong.y.wang@intel.com>
Also-Reported-by: Arnd Bergmann <arnd@arndb.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <20090610090612.GA26580@ywang-moblin2.bj.intel.com>
[ Added two more model numbers suggested by Arnd Bergmann ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-10 13:04:43 +02:00
Borislav Petkov
c476c23b45 amd64_edac: add MAINTAINERS entry
Acked-by: Doug Thompson <dougthompson@xmission.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2009-06-10 12:19:41 +02:00
Borislav Petkov
9456ffffcf EDAC: do not enable modules by default
Prevent EDAC compilation units from being built by default and let the
user explicitly select the needed modules.

Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Tested-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2009-06-10 12:19:41 +02:00
Borislav Petkov
3d37329045 amd64_edac: do not enable module by default
While at it, fix a link failure when !K8_NB.

Acked-by: Doug Thompson <dougthompson@xmission.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Tested-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2009-06-10 12:19:40 +02:00
Doug Thompson
7d6034d321 amd64_edac: add module registration routines
Also, link into Kbuild by adding Kconfig and Makefile entries.

Borislav:
- Kconfig/Makefile splitting
- use zero-sized arrays for the sysfs attrs if not enabled
- rename sysfs attrs to more conform values
- shorten CONFIG_ names
- make multiple structure members assignment vertically aligned
- fix/cleanup comments
- fix function return value patterns
- fix err labels
- fix a memleak bug caught by Ingo
- remove the NUMA dependency and use num_k8_northbrides for initializing
  a driver instance per NB.
- do not copy the pvt contents into the mci struct in
  amd64_init_2nd_stage() and save it in the mci->pvt_info void ptr
  instead.
- cleanup debug calls
- simplify amd64_setup_pci_device()

Reviewed-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2009-06-10 12:19:28 +02:00
Doug Thompson
f9431992b6 amd64_edac: add ECC reporting initializers
Borislav:
- convert to the new {rd|wr}msr_on_cpus interfaces.
- convert pvt->old_mcgctl to a bitmask thus saving some bytes
- fix/cleanup comments
- fix function return value patterns
- add a proper bugfix found by Doug to amd64_check_ecc_enabled where we
  missed checking for the ECC enabled bit in NB CFG.
- cleanup debug calls

Reviewed-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2009-06-10 12:19:01 +02:00
Doug Thompson
0ec449ee95 amd64_edac: add EDAC core-related initializers
Borislav:

- add a amd64_free_mc_sibling_devices() helper instead of opencoding the
  release-path.
- fix/cleanup comments
- fix function return value patterns
- cleanup debug calls

Reviewed-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2009-06-10 12:19:00 +02:00
Doug Thompson
d27bf6fa36 amd64_edac: add error decoding logic
Borislav:

- fold amd64_error_info_valid() into its only user
- fix/cleanup comments
- fix function return value patterns
- cleanup debug calls

Reviewed-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2009-06-10 12:18:59 +02:00
Doug Thompson
b1289d6f9d amd64_edac: add ECC chipkill syndrome mapping table
Borislav:

- fix comments
- cleanup debug calls

Reviewed-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2009-06-10 12:18:58 +02:00
Doug Thompson
4d37607adb amd64_edac: add per-family descriptors
Borislav:

- fix comments
- fix function return value patterns

Reviewed-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2009-06-10 12:18:57 +02:00
Doug Thompson
f71d0a0500 amd64_edac: add F10h-and-later methods-p3
Borislav:

- compute dct_sel_base_off in f10_match_to_this_node() correctly since
it cannot be assumed that the Reserved bits are zero and they have to be
masked out instead.

- cleanup, remove StinkyIdentifiers, simplify logic
- fix function return value patterns
- cleanup debug calls

Reviewed-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2009-06-10 12:18:56 +02:00
Doug Thompson
6163b5d4fb amd64_edac: add F10h-and-later methods-p2
Borislav:

- fix a wrong negation in f10_determine_base_addr_offset()
- fix a wrong mask in f10_determine_base_addr_offset() which should
select DctSelBaseAddr[31:11] and not [31:16] as it was before
- remove StinkyIdentifiers, trivially simplify code.
- fix/cleanup comments
- fix function return value patterns

Reviewed-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2009-06-10 12:18:56 +02:00
Doug Thompson
1afd3c98b5 amd64_edac: add F10h-and-later methods-p1
Borislav:

Fail f10_early_channel_count() if error encountered while reading a NB
register since those cached register contents are accessed afterwards.

- fix/cleanup comments
- fix function return value patterns
- cleanup debug calls

Reviewed-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2009-06-10 12:18:55 +02:00
Doug Thompson
ddff876d20 amd64_edac: add k8-specific methods
Borislav:

- fix/cleanup/move comments
- fix function return value patterns
- cleanup debug calls

Reviewed-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2009-06-10 12:18:54 +02:00
Doug Thompson
94be4bff21 amd64_edac: assign DRAM chip select base and mask in a family-specific way
Borislav:

- cleanup/fix comments
- fix function return value patterns
- cleanup debug calls

Reviewed-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2009-06-10 12:18:53 +02:00
Doug Thompson
2da11654ea amd64_edac: add helper to dump relevant registers
Borislav:

- cleanup/fix comments
- fix function return value patterns
- cleanup dbg calls

Reviewed-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2009-06-10 12:18:52 +02:00
Doug Thompson
93c2df58b5 amd64_edac: add DRAM address type conversion facilities
Borislav:

- cleanup/fix comments, add BKDG refs
- fix function return value patterns
- cleanup dbg calls

Reviewed-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2009-06-10 12:18:51 +02:00
Doug Thompson
e2ce7255e8 amd64_edac: add functionality to compute the DRAM hole
Borislav:

- cleanup/fix comments, add BKDG refs
- cleanup debug calls

Reviewed-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2009-06-10 12:18:50 +02:00
Doug Thompson
6775763a23 amd64_edac: add sys addr to memory controller mapping helpers
Borislav:

- cleanup comments
- cleanup debug calls
- simplify find_mc_by_sys_addr's exit path

Reviewed-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2009-06-10 12:18:49 +02:00
Doug Thompson
2bc6541872 amd64_edac: add memory scrubber interface
Borislav:
- fix/cleanup comments
- fix function return value patterns
- cleanup debug calls

Reviewed-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2009-06-10 12:18:49 +02:00
Doug Thompson
b52401cece amd64_edac: add MCA error types
Borislav:
- cleanup comments

Reviewed-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2009-06-10 12:18:48 +02:00
Doug Thompson
eb919690be amd64_edac: add DRAM error injection logic using sysfs
Borislav:
- rename sysfs attrs to more conform names
- cleanup/fix comments according to BKDG text
- fix function return value patterns
- cleanup debug calls

Reviewed-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2009-06-10 12:18:47 +02:00
Doug Thompson
fd3d6780f7 amd64_edac: add debugging/testing code
This is for dumping different registers and testing the address mapping
logic using the ECC syndromes.

Borislav:

- split sysfs attrs per file
- use more conform names for the sysfs attrs
- fix function return value patterns
- cleanup/fix comments
- cleanup debug calls

Reviewed-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2009-06-10 12:18:46 +02:00
Doug Thompson
cfe40fdb4a amd64_edac: add driver header
Borislav:
- remove register bit descriptions (complete text in BKDG)
- cleanup and remove excessive/superfluous comments

Reviewed-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2009-06-10 12:18:45 +02:00
Borislav Petkov
d357cbb445 edac: fold __func__ into edac_debug_printk
This shortens debugfX() calls a bit.

Reviewed-by: Mauro Carvalho Chehab <mchehab@redhat.com>
CC: Doug Thompson <norsk5@yahoo.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2009-06-10 12:18:44 +02:00
Borislav Petkov
b034c19f9f x86: MSR: add methods for writing of an MSR on several CPUs
Provide for concurrent MSR writes on all the CPUs in the cpumask. Also,
add a temporary workaround for smp_call_function_many which skips the
CPU we're executing on.

Bart: zero out rv struct which is allocated on stack.

CC: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2009-06-10 12:18:43 +02:00
Borislav Petkov
6bc1096d7a x86: MSR: add a struct representation of an MSR
Add a struct representing a 64bit MSR pair consisting of a low and high
register part and convert msr_info to use it. Also, rename msr-on-cpu.c
to msr.c.

Side note: Put the cpumask.h include in __KERNEL__ space thus fixing an
allmodconfig build failure in the headers_check target.

CC: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2009-06-10 12:18:42 +02:00