... instead of possibly uninitialized return value.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Link: http://lkml.kernel.org/r/1423046938-18111-5-git-send-email-tiwai@suse.de
[ Add a commit message, albeit a small one. ]
Signed-off-by: NBorislav Petkov <bp@suse.de>

Fix the following warning:

drivers/edac/i7core_edac.c: In function "core_mce_output_error":
drivers/edac/i7core_edac.c:1711:8: warning: variable "type" set but not used [-Wunused-but-set-variable]
  char *type, *optype, *err;
        ^
According to Mauro, type can just be dropped, as tp_event now maps if
the error is corrected, uncorrected non-fatal or uncorrected fatal
one.
Signed-off-by: NJean Delvare <jdelvare@suse.de>
Link: http://lkml.kernel.org/r/20140224171358.692d7e5a@endymion.delvareAcked-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
Cc: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: NBorislav Petkov <bp@suse.de>

The reference count changes done by pci_get_device can be a little
misleading when the usage diverges from the most common scheme. The
reference count of the device passed as the last parameter is always
decreased, even if the function returns no new device. So if we are
going to try alternative device IDs, we must manually increment the
device reference count before each retry. If we don't, we end up
decreasing the reference count, and after a few modprobe/rmmod cycles
the PCI devices will vanish.

In other words and as Alan put it: without this fix the EDAC code
corrupts the PCI device list.

This fixes kernel bug #50491:
https://bugzilla.kernel.org/show_bug.cgi?id=50491Signed-off-by: NJean Delvare <jdelvare@suse.de>
Link: http://lkml.kernel.org/r/20140224093927.7659dd9d@endymion.delvareReviewed-by: NAlan Cox <alan@linux.intel.com>
Cc: Mauro Carvalho Chehab <m.chehab@samsung.com>
Cc: Doug Thompson <dougthompson@xmission.com>
Cc: stable@vger.kernel.org
Signed-off-by: NBorislav Petkov <bp@suse.de>

There are several left overs with my old email address.
Remove their occurrences and add myself at CREDITS, to
allow people to be able to reach me on my new addresses.
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Currently, there is no other bus that has something like this macro for
their device ids. Thus, DEFINE_PCI_DEVICE_TABLE macro should be removed.
Signed-off-by: NJingoo Han <jg1.han@samsung.com>
Link: http://lkml.kernel.org/r/001c01ceefb3$5724d860$056e8920$%han@samsung.com
[ Boris: swap commit message with better one. ]
Signed-off-by: NBorislav Petkov <bp@suse.de>

The usage of strict_strtoul() is not preferred, because strict_strtoul()
is obsolete. Thus, kstrtoul() should be used.
Signed-off-by: NJingoo Han <jg1.han@samsung.com>
Signed-off-by: NBorislav Petkov <bp@suse.de>

CONFIG_HOTPLUG is going away as an option.  As a result, the __dev*
markings need to be removed.

This change removes the use of __devinit, __devexit_p, and __devexit
from these drivers.

Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.

Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: Doug Thompson <dougthompson@xmission.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Mark Gross <mark.gross@intel.com>
Cc: Jason Uhlenkott <juhlenko@akamai.com>
Cc: Mauro Carvalho Chehab <mchehab@redhat.com>
Cc: Tim Small <tim@buttersideup.com>
Cc: Ranganathan Desikan <ravi@jetztechnologies.com>
Cc: "Arvind R." <arvino55@gmail.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: David Daney <david.daney@cavium.com>
Cc: Egor Martovetsky <egor@pasemi.com>
Cc: Olof Johansson <olof@lixom.net>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Remove size from lookup arrays and mark them as const.
Reviewed-by: NJesper Juhl <jj@chaosbits.net>
Signed-off-by: NNiklas Söderlund <niso@kth.se>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The i7core_edac addrmatch_dev and chancounts_dev have sysfs files
associated with them.  The sysfs files, however, are coded so that the
parent device is is the mci device.  This is incorrect and the mci struct
should be obtained through the addrmatch_dev and chancounts_dev device's
private data field which is populated in i7core_create_sysfs_devices().
Signed-off-by: NPrarit Bhargava <prarit@redhat.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Instead of generating a burst of errors or reporting the error
count via driver-specific details, use the new way provided by
edac_mc_handle_error.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

In order to avoid loosing error events, it is desirable to group
error events together and generate a single trace for several identical
errors.

The trace API already allows reporting multiple errors. Change the
handle_error function to also allow that.

The changes at the drivers were made by this small script:

	$file .=$_ while (<>);
	$file =~ s/(edac_mc_handle_error)\s*\(([^\,]+)\,([^\,]+)\,/$1($2,$3, 1,/g;
	print $file;
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Remove the arch-dependent parameter, as it were not used,
as the MCE tracepoint weren't implemented. It probably doesn't
make sense to have an MCE-specific tracepoint, as this will
cost more bytes at the tracepoint, and tracepoint is not free.

The changes at the EDAC drivers were done by this small perl script:

	$file .=$_ while (<>);
	$file =~ s/(edac_mc_handle_error)\s*\(([^\;]+)\,([^\,\)]+)\s*\)/$1($2)/g;
	print $file;
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Use a more common debugging style.

Remove __FILE__ uses, add missing newlines,
coalesce formats and align arguments.
Signed-off-by: NJoe Perches <joe@perches.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The debug macro already adds that. Most of the work here was
made by this small script:

$f .=$_ while (<>);

$f =~ s/(debugf[0-9]\s*\(\s*)__FILE__\s*": /\1"/g;
$f =~ s/(debugf[0-9]\s*\(\s*)__FILE__\s*/\1/g;
$f =~ s/(debugf[0-9]\s*\(\s*)__FILE__\s*"MC: /\1"/g;

$f =~ s/(debugf[0-9]\s*\(\")\%s[\:\,\(\)]*\s*([^\"]*\s*[^\)]+)__func__\s*\,\s*/\1\2/g;
$f =~ s/(debugf[0-9]\s*\(\")\%s[\:\,\(\)]*\s*([^\"]*\s*[^\)]+),\s*__func__\s*\)/\1\2)/g;
$f =~ s/(debugf[0-9]\s*\(\"MC\:\s*)\%s[\:\,\(\)]*\s*([^\"]*\s*[^\)]+)__func__\s*\,\s*/\1\2/g;
$f =~ s/(debugf[0-9]\s*\(\"MC\:\s*)\%s[\:\,\(\)]*\s*([^\"]*\s*[^\)]+),\s*__func__\s*\)/\1\2)/g;

$f =~ s/\"MC\: \\n\"/"MC:\\n"/g;

print $f;

After running the script, manual cleanups were done to fix it the remaining
places.

While here, removed the __LINE__ on most places, as it doesn't actually give
useful info on most places.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Kernel kobjects have rigid rules: each container object should be
dynamically allocated, and can't be allocated into a single kmalloc.

EDAC never obeyed this rule: it has a single malloc function that
allocates all needed data into a single kzalloc.

As this is not accepted anymore, change the allocation schema of the
EDAC *_info structs to enforce this Kernel standard.

Cc: Aristeu Rozanski <arozansk@redhat.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Instead of relying on a complex logic inside the edac core to create
a "device tree-like" sysfs struct, just use device_add.
Reviewed-by: NAristeu Rozanski <arozansk@redhat.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

As EDAC doesn't use struct device itself, it created a parent dev
pointer called as "pdev".  Now that we'll be converting it to use
struct device, instead of struct devsys, this needs to be fixed.

No functional changes.
Reviewed-by: NAristeu Rozanski <arozansk@redhat.com>
Acked-by: NChris Metcalf <cmetcalf@tilera.com>
Cc: Doug Thompson <norsk5@yahoo.com>
Cc: Borislav Petkov <borislav.petkov@amd.com>
Cc: Mark Gross <mark.gross@intel.com>
Cc: Jason Uhlenkott <juhlenko@akamai.com>
Cc: Tim Small <tim@buttersideup.com>
Cc: Ranganathan Desikan <ravi@jetztechnologies.com>
Cc: "Arvind R." <arvino55@gmail.com>
Cc: Olof Johansson <olof@lixom.net>
Cc: Egor Martovetsky <egor@pasemi.com>
Cc: Michal Marek <mmarek@suse.cz>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Joe Perches <joe@perches.com>
Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Hitoshi Mitake <h.mitake@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: "Niklas Söderlund" <niklas.soderlund@ericsson.com>
Cc: Shaohui Xie <Shaohui.Xie@freescale.com>
Cc: Josh Boyer <jwboyer@gmail.com>
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Some edac drivers register themselves as mce decoders via
notifier_chain. But in current notifier_chain implementation logic,
it doesn't accept same notifier registered twice. If so, it will be
wrong when adding/removing the element from the list. For example,
on one SandyBridge platform, remove module sb_edac and then trigger
one error, it will hit oops because it has no mce decoder registered
but related notifier_chain still points to an invalid callback
function. Here is an example:

Call Trace:
 [<ffffffff8150ef6a>] atomic_notifier_call_chain+0x1a/0x20
 [<ffffffff8102b936>] mce_log+0x46/0x180
 [<ffffffff8102eaea>] apei_mce_report_mem_error+0x4a/0x60
 [<ffffffff812e19d2>] ghes_do_proc+0x192/0x210
 [<ffffffff812e2066>] ghes_proc+0x46/0x70
 [<ffffffff812e20d8>] ghes_notify_sci+0x48/0x80
 [<ffffffff8150ef05>] notifier_call_chain+0x55/0x80
 [<ffffffff81076f1a>] __blocking_notifier_call_chain+0x5a/0x80
 [<ffffffff812aea11>] ? acpi_os_wait_events_complete+0x23/0x23
 [<ffffffff81076f56>] blocking_notifier_call_chain+0x16/0x20
 [<ffffffff812ddc4d>] acpi_hed_notify+0x19/0x1b
 [<ffffffff812b16bd>] acpi_device_notify+0x19/0x1b
 [<ffffffff812beb38>] acpi_ev_notify_dispatch+0x67/0x7f
 [<ffffffff812aea3a>] acpi_os_execute_deferred+0x29/0x36
 [<ffffffff81069dc2>] process_one_work+0x132/0x450
 [<ffffffff8106bbcb>] worker_thread+0x17b/0x3c0
 [<ffffffff8106ba50>] ? manage_workers+0x120/0x120
 [<ffffffff81070aee>] kthread+0x9e/0xb0
 [<ffffffff81514724>] kernel_thread_helper+0x4/0x10
 [<ffffffff81070a50>] ? kthread_freezable_should_stop+0x70/0x70
 [<ffffffff81514720>] ? gs_change+0x13/0x13
Code: f3 49 89 d4 45 85 ed 4d 89 c6 48 8b 0f 74 48 48 85 c9 75 17 eb 41
0f 1f 80 00 00 00 00 41 83 ed 01 4c 89 f9 74 22 4d 85 ff 74 1d <4c> 8b
79 08 4c 89 e2 48 89 de 48 89 cf ff 11 4d 85 f6 74 04 41
RIP  [<ffffffff8150eef6>] notifier_call_chain+0x46/0x80
 RSP <ffff88042868fb20>
CR2: ffffffffa01af838
---[ end trace 0100930068e73e6f ]---
BUG: unable to handle kernel paging request at fffffffffffffff8
IP: [<ffffffff810705b0>] kthread_data+0x10/0x20
PGD 1a0d067 PUD 1a0e067 PMD 0
Oops: 0000 [#2] SMP

Only i7core_edac and sb_edac have such issues because they have more
than one memory controller which means they have to register mce
decoder many times.

Cc: <stable@vger.kernel.org> # 3.2 and upper
Signed-off-by: NChen Gong <gong.chen@linux.intel.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

There is a flag at the per-channel struct that indicates if there are
any 4R dimm on it. The way the presence of this flag were reported
is not ok, as it might give the false idea that the channel were filled
with 2R memories:

[  580.588701] EDAC DEBUG: get_dimm_config: Ch1 phy rd1, wr1 (0x063f7431): 2 ranks, UDIMMs
[  580.588704] EDAC DEBUG: get_dimm_config: 	dimm 0 1024 Mb offset: 0, bank: 8, rank: 1, row: 0x4000, col: 0x400

(in this case, just one 1R memory is filled on channel 1)

So, use a better way to represent the per-channel ranks information.
After the patch, it will show:

[ 2002.233978] EDAC DEBUG: get_dimm_config: Ch0 phy rd0, wr0 (0x063f7431): UDIMMs
[ 2002.233982] EDAC DEBUG: get_dimm_config: 	dimm 0 1024 Mb offset: 0, bank: 8, rank: 1, row: 0x4000, col: 0x400
[ 2002.233988] EDAC DEBUG: get_dimm_config: 	dimm 1 1024 Mb offset: 4, bank: 8, rank: 1, row: 0x4000, col: 0x400

(in this case, there isn't any 4R memories)
Reported-by: NBorislav Petkov <borislav.petkov@amd.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Remove some information that it is duplicated at the MCE log,
and don't have much usage for the error. Those data will be
added again, when creating a trace function that outputs both
memory errors and MCE fields.

Cc: Aristeu Rozanski <arozansk@redhat.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Now that all drivers got converted to use the new ABI, we can
drop the old one.
Acked-by: NChris Metcalf <cmetcalf@tilera.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The legacy edac ABI is going to be removed. Port the driver to use
and benefit from the new API functionality.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The number of pages is a dimm property. Move it to the dimm struct.

After this change, it is possible to add sysfs nodes for the DIMM's that
will properly represent the DIMM stick properties, including its size.

A TODO fix here is to properly represent dual-rank/quad-rank DIMMs when
the memory controller represents the memory via chip select rows.
Reviewed-by: NAristeu Rozanski <arozansk@redhat.com>
Acked-by: NBorislav Petkov <borislav.petkov@amd.com>
Acked-by: NChris Metcalf <cmetcalf@tilera.com>
Cc: Doug Thompson <norsk5@yahoo.com>
Cc: Mark Gross <mark.gross@intel.com>
Cc: Jason Uhlenkott <juhlenko@akamai.com>
Cc: Tim Small <tim@buttersideup.com>
Cc: Ranganathan Desikan <ravi@jetztechnologies.com>
Cc: "Arvind R." <arvino55@gmail.com>
Cc: Olof Johansson <olof@lixom.net>
Cc: Egor Martovetsky <egor@pasemi.com>
Cc: Michal Marek <mmarek@suse.cz>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Joe Perches <joe@perches.com>
Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Hitoshi Mitake <h.mitake@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: "Niklas Söderlund" <niklas.soderlund@ericsson.com>
Cc: Shaohui Xie <Shaohui.Xie@freescale.com>
Cc: Josh Boyer <jwboyer@gmail.com>
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Almost all edac	drivers	initialize csrow_info->first_page,
csrow_info->last_page and csrow_info->page_mask. Those vars are
used inside the EDAC core, in order to calculate the csrow affected
by an error, by using the routine edac_mc_find_csrow_by_page().

However, very few drivers actually use it:
        e752x_edac.c
        e7xxx_edac.c
        i3000_edac.c
        i82443bxgx_edac.c
        i82860_edac.c
        i82875p_edac.c
        i82975x_edac.c
        r82600_edac.c

There also a few other drivers that have their own calculus
formula internally using those vars.

All the others are just wasting time by initializing those
data.

While initializing data without using them won't cause any troubles, as
those information is stored at the wrong place (at csrows structure), it
is better to remove what is unused, in order to simplify the next patch.
Reviewed-by: NAristeu Rozanski <arozansk@redhat.com>
Acked-by: NBorislav Petkov <borislav.petkov@amd.com>
Acked-by: NChris Metcalf <cmetcalf@tilera.com>
Cc: Doug Thompson <norsk5@yahoo.com>
Cc: Hitoshi Mitake <h.mitake@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: "Niklas Söderlund" <niklas.soderlund@ericsson.com>
Cc: Josh Boyer <jwboyer@gmail.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

On systems based on chip select rows, all channels need to use memories
with the same properties, otherwise the memories on channels A and B
won't be recognized.

However, such assumption is not true for all types of memory
controllers.

Controllers for FB-DIMM's don't have such requirements.

Also, modern Intel controllers seem to be capable of handling such
differences.

So, we need to get rid of storing the DIMM information into a per-csrow
data, storing it, instead at the right place.

The first step is to move grain, mtype, dtype and edac_mode to the
per-dimm struct.
Reviewed-by: NAristeu Rozanski <arozansk@redhat.com>
Reviewed-by: NBorislav Petkov <borislav.petkov@amd.com>
Acked-by: NChris Metcalf <cmetcalf@tilera.com>
Cc: Doug Thompson <norsk5@yahoo.com>
Cc: Borislav Petkov <borislav.petkov@amd.com>
Cc: Mark Gross <mark.gross@intel.com>
Cc: Jason Uhlenkott <juhlenko@akamai.com>
Cc: Tim Small <tim@buttersideup.com>
Cc: Ranganathan Desikan <ravi@jetztechnologies.com>
Cc: "Arvind R." <arvino55@gmail.com>
Cc: Olof Johansson <olof@lixom.net>
Cc: Egor Martovetsky <egor@pasemi.com>
Cc: Michal Marek <mmarek@suse.cz>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Joe Perches <joe@perches.com>
Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Hitoshi Mitake <h.mitake@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: James Bottomley <James.Bottomley@parallels.com>
Cc: "Niklas Söderlund" <niklas.soderlund@ericsson.com>
Cc: Shaohui Xie <Shaohui.Xie@freescale.com>
Cc: Josh Boyer <jwboyer@gmail.com>
Cc: Mike Williams <mike@mikebwilliams.com>
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The way a DIMM is currently represented implies that they're
linked into a per-csrow struct. However, some drivers don't see
csrows, as they're ridden behind some chip like the AMB's
on FBDIMM's, for example.

This forced drivers to fake^Wvirtualize a csrow struct, and to create
a mess under csrow/channel original's concept.

Move the DIMM labels into a per-DIMM struct, and add there
the real location of the socket, in terms of csrow/channel.
Latter patches will modify the location to properly represent the
memory architecture.

All other drivers will use a per-csrow type of location.
Some of those drivers will require a latter conversion, as
they also fake the csrows internally.

TODO: While this patch doesn't change the existing behavior, on
csrows-based memory controllers, a csrow/channel pair points to a memory
rank. There's a known bug at the EDAC core that allows having different
labels for the same DIMM, if it has more than one rank. A latter patch
is need to merge the several ranks for a DIMM into the same dimm_info
struct, in order to avoid having different labels for the same DIMM.

The edac_mc_alloc() will now contain a per-dimm initialization loop that
will be changed by latter patches in order to match other types of
memory architectures.
Reviewed-by: NAristeu Rozanski <arozansk@redhat.com>
Reviewed-by: NBorislav Petkov <borislav.petkov@amd.com>
Cc: Doug Thompson <norsk5@yahoo.com>
Cc: Ranganathan Desikan <ravi@jetztechnologies.com>
Cc: "Arvind R." <arvino55@gmail.com>
Cc: "Niklas Söderlund" <niklas.soderlund@ericsson.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NDavid Mackey <tdmackey@twitter.com>
Signed-off-by: NVinson Lee <vlee@twitter.com>
Acked-by: NRandy Dunlap <rdunlap@xenotime.net>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

These const tables are currently marked __devinitdata, but
Documentation/PCI/pci.txt says:

"o The ID table array should be marked __devinitconst; this is done
automatically if the table is declared with DEFINE_PCI_DEVICE_TABLE()."

So use DEFINE_PCI_DEVICE_TABLE(x).

Based on PaX and earlier work by Andi Kleen.
Signed-off-by: NLionel Debroux <lionel_debroux@yahoo.fr>
Signed-off-by: NBorislav Petkov <borislav.petkov@amd.com>

No functionality change, this is done so that in a follow-on patch all
queued-up MCEs can be decoded after registering on the chain.
Signed-off-by: NBorislav Petkov <borislav.petkov@amd.com>

Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

on i386:
	ERROR: "__udivdi3" [drivers/edac/i7core_edac.ko] undefined!\

In both get_sdram_scrub_rate() and set_sdram_scrub_rate()
Reported-by: NRandy Dunlap <rdunlap@xenotime.net>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Get a more reliable DCLK value from DMI, name the SCRUBINTERVAL mask
and guard against potential overflow in the scrub rate computations.
Signed-off-by: NNils Carlson <nils.carlson@ericsson.com>

Nehalem-EX uses a different memory controller. However, as the
memory controller is not visible on some Nehalem/Nehalem-EP, we
need to indirectly probe via a X58 PCI device. The same devices
are found on (some) Nehalem-EX. So, on those machines, the
probe routine needs to return -ENODEV, as the actual Memory
Controller registers won't be detected.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Remove edac_mce pieces and use the normal MCE decoder notifier chain by
retaining the same functionality with considerably less code.
Signed-off-by: NBorislav Petkov <borislav.petkov@amd.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

mce->socketid and cpu_data(mce->cpu).phys_proc_id are the same,
compare with mce_setup (in mce.c):
	m->cpu = m->extcpu = smp_processor_id();
        ...
	m->socketid = cpu_data(m->extcpu).phys_proc_id;

This makes it easier for example for XEN patches to hook into
the MCE subsystem.
Compile tested on x86_64.
Signed-off-by: NThomas Renninger <trenn@suse.de>
CC: JBeulich@novell.com
CC: linux-edac@vger.kernel.org
CC: Mauro Carvalho Chehab <mchehab@redhat.com>

Xeon 35xx doesn't mention memory scrub. It seems that only Xeon 55xx
and above supports it.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Add scrubbing support to i7core_edac, tested on intel Xeon L5638.
Signed-off-by: NSamuel Gabrielsson <samuel.gabrielsson@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Error injection needs the pci device 0:0. So, we need to revert
this changeset: 79daef20.

Tests need to be made to be sure that refcount won't be wrong
as noticed before.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

CC: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: NDavid Sterba <dsterba@suse.cz>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>