Extend ECC decoding support for F16h M30h. Tested on F16h M30h with ECC
turned on using mce_amd_inj module and the patch works fine.
Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>
Link: http://lkml.kernel.org/r/1392913726-16961-1-git-send-email-Aravind.Gopalakrishnan@amd.com
Tested-by: Arindam Nath <Arindam.Nath@amd.com>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
This patch marks the function amd64_decode_bus_error() as static because
it is not used outside of amd64_edac.c.
It also eliminates the following warning:
drivers/edac/amd64_edac.c:2038:6: warning: no previous prototype for ‘amd64_decode_bus_error’ [-Wmissing-prototypes]
Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Link: http://lkml.kernel.org/r/7cddbd4c69ed493f183383e98853181aaf75b26b.1387029387.git.rashika.kheria@gmail.com
Signed-off-by: Borislav Petkov <bp@suse.de>
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: Jingoo 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: Borislav Petkov <bp@suse.de>
The value returned from 'f15_m30h_determine_channel' will
always be 0x3 max. The condition
(channel > 4 || channel < 0)
works as hardware never returns a value of 4, but
it leads to static checker analysis errors like
http://marc.info/?l=linux-edac&m=138607615131951&w=2.
Fix that.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>
Link: http://lkml.kernel.org/r/20131203130857.GA32170@elgon.mountain
[ Boris: massage commit message a bit. ]
Signed-off-by: Borislav Petkov <bp@suse.de>
GENMASK is used to create a contiguous bitmask([hi:lo]). It is
implemented twice in current kernel. One is in EDAC driver, the other
is in SiS/XGI FB driver. Move it to a more generic place for other
usage.
Signed-off-by: Chen, Gong <gong.chen@linux.intel.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Thomas Winischhofer <thomas@winischhofer.net>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Borislav Petkov <bp@suse.de>
Acked-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
dct_base and dct_limit obtain 32 bit register values when they read
their respective pci config space registers. A left shift beyond 32 bits
will cause them to wrap around. Similar case for chan_addr as can be
seen from the bug report (link below). In the patch, we rectify this by
casting chan_addr to u64 and by comparing dct_base and dct_limit against
properly shifted sys_addr in order to compare the correct bits.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>
Link: http://lkml.kernel.org/r/20130819132302.GA12171@elgon.mountain
Signed-off-by: Borislav Petkov <bp@suse.de>
Basically we want to cover all 0x0-0xf models, i.e. Orochi and later.
Cc: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>
Link: http://lkml.kernel.org/r/20130819192321.GF4165@pd.tnic
Signed-off-by: Borislav Petkov <bp@suse.de>
Now that we cache (family, model, stepping) locally, use them instead of
boot_cpu_data.
No functionality change.
Signed-off-by: Borislav Petkov <bp@suse.de>
On newer models, support has been included for upto 4 DCT's, however,
only DCT0 and DCT3 are currently configured (cf BKDG Section 2.10).
Also, the routing DRAM Requests algorithm is different for F15h M30h.
Thus it is cleaner to use a brand new function rather than adding quirks
to the more generic f1x_match_to_this_node(). Refer to "2.10.5 DRAM
Routing Requests" in the BKDG for further info.
Tested on Fam15h M30h with ECC turned on using mce_amd_inj facility and
verified to be functionally correct.
While at it, verify if erratum workarounds for E505 and E637 still hold.
From email conversations within AMD, the current status of the errata
is:
* Erratum 505: fixed in model 0x1, stepping 0x1 and later.
* Erratum 637: not fixed.
Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>
[ Cleanups, corrections ]
Signed-off-by: Borislav Petkov <bp@suse.de>
It can happen that configurations are running in a single-channel mode
even with a dual-channel memory controller, by, say, putting the DIMMs
only on the one channel and leaving the other empty. This causes a
problem in init_csrows which implicitly assumes that when the second
channel is enabled, i.e. channel 1, the struct dimm hierarchy will be
present. Which is not.
So always allocate two channels unconditionally.
This provides for the nice side effect that the data structures are
initialized so some day, when memory hotplug is supported, it should
just work out of the box when all of a sudden a second channel appears.
Reported-and-tested-by: Roger Leigh <rleigh@debian.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Add code to handle DRAM ECC errors decoding for Fam16h.
Tested on Fam16h with ECC turned on using the mce_amd_inj facility and
works fine.
Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>
[ Boris: cleanups and clarifications ]
Signed-off-by: Borislav Petkov <bp@suse.de>
Both mci.mem_is_per_rank and mci.csbased denote the same thing: the
memory controller is csrows based. Merge both fields into one.
There's no need for the driver to actually fill it, as the core detects
it by checking if one of the layers has the csrows type as part of the
memory hierarchy:
if (layers[i].type == EDAC_MC_LAYER_CHIP_SELECT)
per_rank = true;
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
We were filling the csrow size with a wrong value. 16a528ee39 ("EDAC:
Fix csrow size reported in sysfs") tried to address the issue. It fixed
the report with the old API but not with the new one. Correct it for the
new API too.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
[ make it a per-csrow accounting regardless of ->channel_count ]
Signed-off-by: Borislav Petkov <bp@suse.de>
Only one: AMD F16h MCE decoding enablement from Jacob Shin.
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Merge tag 'edac_3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp
Pull EDAC updates from Borislav Petkov:
"Mostly AMD's side of EDAC. It is basically a new family enablement
stuff: AMD F16h MCE decoding enablement from Jacob Shin. The rest is
trivial cleanups."
* tag 'edac_3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
mpc85xx_edac: Fix typo
EDAC, MCE, AMD: Remove unneeded exports
EDAC, MCE, AMD: Add MCE decoding support for Family 16h
EDAC, MCE, AMD: Make MC2 decoding per-family
amd64_edac: Remove dead code
5e2af0c09e ("edac: Don't initialize csrow's first_page & friends when
not needed") removed useless initialization of variables but left in the
functions which did that. They're unused now so drop them.
Signed-off-by: Borislav Petkov <bp@alien8.de>
Use appropriate types for northbridge IDs and memory ranges. Mark
immutable data const and keep within compilation unit on related
structures.
Signed-off-by: Daniel J Blueman <daniel@numascale-asia.com>
Link: http://lkml.kernel.org/r/1354265060-22956-2-git-send-email-daniel@numascale-asia.com
[Boris: Drop arg change to node_to_amd_nb]
Signed-off-by: Borislav Petkov <bp@alien8.de>
Fix locating sibling memory controller PCI functions by using the
correct PCI domain and use a northbridge descriptor only if found. We
need to at least warn if it wasn't found so that it gets fixed and we
don't go off with wrong results.
Signed-off-by: Daniel J Blueman <daniel@numascale-asia.com>
Link: http://lkml.kernel.org/r/1354265060-22956-1-git-send-email-daniel@numascale-asia.com
[Boris: remove wrong comment, sanitize code and warn if NB desc lookup fails]
Signed-off-by: Borislav Petkov <bp@alien8.de>
Fix get_node_id to match northbridge IDs from the array of detected
ones, allowing multi-server support such as with Numascale's
NumaConnect, renaming to 'amd_get_node_id' for consistency.
Signed-off-by: Daniel J Blueman <daniel@numascale-asia.com>
Link: http://lkml.kernel.org/r/1353997932-8475-1-git-send-email-daniel@numascale-asia.com
[Boris: shorten lines to fit 80 cols]
Signed-off-by: Borislav Petkov <bp@alien8.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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
On csrow-based memory controllers, we combine the csrow size from both
channels and there's no need to do that again in csrow_size_show which
leads to double the size of a csrow.
Fix it.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Make sure code pays attention to K8 having only one DCT, reformat and
cleanup code, correct debug messages, remove unused code.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Instead of open-coding it, use the DBAM_DIMM macro in
amd64_csrow_nr_pages() which we have already.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
This basically reverts 603adaf6b3 ("amd64_edac: fix K8 chip select
reporting") because it was a clumsy workaround for DIMM sizes reporting
on K8 which got superceded by a much more correct one with 41d8bfaba7
("amd64_edac: Improve DRAM address mapping") without removing the prior
one. Remove it now finally.
Reported-by: Josh Hunt <johunt@akamai.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Rewrite CE/UE paths so that they use the same code and drop additional
code duplication in handle_ue. Add a struct err_info which collects
required info for the error reporting. This, in turn, helps slimming all
edac_mc_handle_error() calls down to one.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
All families report a valid error address when encountering a DRAM ECC
error so no need to check it.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
When injecting DRAM ECC errors over the F3xB[8,C] interface, the machine
does this by injecting the error in the next non-cached access. This
takes relatively long time on a normal system so that in order for us to
expedite it, we disable the caches around the injection.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
amd64_get_dram_hole_info: remove local variable 'base'.
sys_addr_to_dram_addr: do not clear local variable 'ret'. Also, sanitize
constants formatting.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
If none of the elements in scrubrates[] matches, this loop will cause
__amd64_set_scrub_rate() to incorrectly use the n+1th element.
As the function is designed to use the final scrubrates[] element in the
case of no match, we can fix this bug by simply terminating the array
search at the n-1th element.
Boris: this code is fragile anyway, see here why:
http://marc.info/?l=linux-kernel&m=135102834131236&w=2
It will be rewritten more robustly soonish.
Reported-by: Denis Kirjanov <kirjanov@gmail.com>
Cc: stable@vger.kernel.org
Cc: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.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: Mauro 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: Mauro Carvalho Chehab <mchehab@redhat.com>
The EDAC driver name doesn't help to handle EDAC errors. So,
remove it from the EDAC error messages, preserving only the
error_message.
Signed-off-by: Mauro 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: Joe Perches <joe@perches.com>
Signed-off-by: Mauro 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.
Acked-by: Chris Metcalf <cmetcalf@tilera.com>
Cc: Aristeu Rozanski <arozansk@redhat.com>
Cc: Doug Thompson <norsk5@yahoo.com>
Cc: Greg K H <gregkh@linuxfoundation.org>
Cc: Borislav Petkov <borislav.petkov@amd.com>
Cc: Mark Gross <mark.gross@intel.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: 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: Shaohui Xie <Shaohui.Xie@freescale.com>
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Now that the EDAC core supports struct device, there's no sense
on having any logic at the EDAC core to simulate it. So, instead
of adding such logic there, change the logic at amd64_edac to
use it.
Reviewed-by: Aristeu Rozanski <arozansk@redhat.com>
Cc: Doug Thompson <norsk5@yahoo.com>
Cc: Borislav Petkov <borislav.petkov@amd.com>
Signed-off-by: Mauro 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: Aristeu Rozanski <arozansk@redhat.com>
Acked-by: Chris 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: Mauro Carvalho Chehab <mchehab@redhat.com>
Now that all drivers got converted to use the new ABI, we can
drop the old one.
Acked-by: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: Mauro 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.
Cc: Doug Thompson <norsk5@yahoo.com>
Cc: Borislav Petkov <borislav.petkov@amd.com>
Signed-off-by: Mauro 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: Aristeu Rozanski <arozansk@redhat.com>
Acked-by: Borislav Petkov <borislav.petkov@amd.com>
Acked-by: Chris 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: Mauro 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: Aristeu Rozanski <arozansk@redhat.com>
Acked-by: Borislav Petkov <borislav.petkov@amd.com>
Acked-by: Chris 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: Mauro 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: Aristeu Rozanski <arozansk@redhat.com>
Reviewed-by: Borislav Petkov <borislav.petkov@amd.com>
Acked-by: Chris 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: Mauro Carvalho Chehab <mchehab@redhat.com>
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: Lionel Debroux <lionel_debroux@yahoo.fr>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
While initializing the array of csrow attribute instances, a few csrows
were uninitialized. This happened because the module only performed a
check for DRAM base ctl register0's and not DRAM base ctl register1's
chip select enable bit. There could be systems with DIMMs populated
on only single memory channel whereas the module also assumed that a
dual channel dimm had double the memory size of a single memory channel
instead of checking the memory on each channel.
This patch fixes these above issues.
Signed-off-by: Ashish Shenoy <ashenoy@riverbed.com>
Signed-off-by: Prasanna S. Panchamukhi <ppanchamukhi@riverbed.com>
Link: http://lkml.kernel.org/r/4F459CFA.5090604@riverbed.com
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Sparse complains that edac_cap was declared as dev_type and we are
returning edac_type. Historically, edac_type was correct but since
then we have changed it to return a bit field.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: http://lkml.kernel.org/r/20111006063025.GA2615@mwanda
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
