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1107 commits

Author SHA1 Message Date
Linus Torvalds
b53343fc6c A build fix for octeon_edac from Aaro Koskinen.
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Merge tag 'edac_urgent_for_4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp

Pull EDAC fix from Borislav Petkov:
 "A build fix for octeon_edac from Aaro Koskinen"

* tag 'edac_urgent_for_4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
  EDAC, octeon: Fix broken build due to model helper renames
2015-07-03 12:10:12 -07:00
Aaro Koskinen
75a15a7864 EDAC, octeon: Fix broken build due to model helper renames
Commit

  debe6a623d ("MIPS: OCTEON: Update octeon-model.h code for new SoCs.")

renamed some SoC model helper functions, but forgot to update the EDAC
drivers resulting in build failures. Fix that.

Cc: stable@vger.kernel.org # v4.0+
Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Acked-by: David Daney <david.daney@cavium.com>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: linux-mips@linux-mips.org
Link: http://lkml.kernel.org/r/1435747132-10954-1-git-send-email-aaro.koskinen@nokia.com
Signed-off-by: Borislav Petkov <bp@suse.de>
2015-07-02 10:46:28 +02:00
Linus Torvalds
8d7804a2f0 Driver core patches for 4.2-rc1
Here is the driver core / firmware changes for 4.2-rc1.
 
 A number of small changes all over the place in the driver core, and in
 the firmware subsystem.  Nothing really major, full details in the
 shortlog.  Some of it is a bit of churn, given that the platform driver
 probing changes was found to not work well, so they were reverted.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core updates from Greg KH:
 "Here is the driver core / firmware changes for 4.2-rc1.

  A number of small changes all over the place in the driver core, and
  in the firmware subsystem.  Nothing really major, full details in the
  shortlog.  Some of it is a bit of churn, given that the platform
  driver probing changes was found to not work well, so they were
  reverted.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'driver-core-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (31 commits)
  Revert "base/platform: Only insert MEM and IO resources"
  Revert "base/platform: Continue on insert_resource() error"
  Revert "of/platform: Use platform_device interface"
  Revert "base/platform: Remove code duplication"
  firmware: add missing kfree for work on async call
  fs: sysfs: don't pass count == 0 to bin file readers
  base:dd - Fix for typo in comment to function driver_deferred_probe_trigger().
  base/platform: Remove code duplication
  of/platform: Use platform_device interface
  base/platform: Continue on insert_resource() error
  base/platform: Only insert MEM and IO resources
  firmware: use const for remaining firmware names
  firmware: fix possible use after free on name on asynchronous request
  firmware: check for file truncation on direct firmware loading
  firmware: fix __getname() missing failure check
  drivers: of/base: move of_init to driver_init
  drivers/base: cacheinfo: fix annoying typo when DT nodes are absent
  sysfs: disambiguate between "error code" and "failure" in comments
  driver-core: fix build for !CONFIG_MODULES
  driver-core: make __device_attach() static
  ...
2015-06-26 15:07:37 -07:00
Linus Torvalds
da996f7310 edac updates for v4.2-rc1
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Merge tag 'edac/v4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac

Pull edac updates from Mauro Carvalho Chehab:
 "Some fixes and additions to the EDAC driver used on modern Intel x86
  CPUs.  It includes support for Broadwell EP/EX platforms and fixes for
  motherboards with more than 2 CPU sockets"

* tag 'edac/v4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac:
  sb_edac: support for Broadwell -EP and -EX
  sb_edac: Fix support for systems with two home agents per socket
  sb_edac: Fix a typo and a thinko in address handling for Haswell
  EDAC: Remove arbitrary limit on number of channels
2015-06-25 18:22:20 -07:00
Borislav Petkov
cda9459da7 EDAC, mce_amd_inj: Set MISCV on injection
When during injection we populate MCi_MISC by writing into misc, we need
to set the MiscV bit in the corresponding MCi_STATUS register which
denotes that there's valid info in the MCi_MISC register.

Signed-off-by: Borislav Petkov <bp@suse.de>
2015-06-24 18:17:38 +02:00
Borislav Petkov
6d1e9bf5b0 EDAC, mce_amd_inj: Move bit preparations before the injection
We do get_online_cpus() and then start noodling with the bits. Do that
*before* we grab the hotplug lock.

Signed-off-by: Borislav Petkov <bp@suse.de>
2015-06-24 18:17:37 +02:00
Borislav Petkov
f2f3dca1b7 EDAC, mce_amd_inj: Cleanup and simplify README
Save us an indentation level, widen to 80 cols, make the text more
succinct and slender. Use i as the bank variable, same as what the
documentation uses.

Signed-off-by: Borislav Petkov <bp@suse.de>
2015-06-24 18:17:34 +02:00
Alan Tull
6f2b6422d4 EDAC, altera: Do not allow suspend when EDAC is enabled
Suspend-to-RAM and EDAC support are mutually exclusive on SOCFPGA. If
EDAC is enabled, it will prevent the platform from going into suspend.

The reason is that the IRQ vectors for OCRAM reside on DDR and in
Suspend-to-RAM mode we're executing out of OCRAM. If an ECC error
occurs, we can't handle it so it was decided to make them mutually
exclusive.

Signed-off-by: Alan Tull <atull@opensource.altera.com>
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: dinh.linux@gmail.com
Cc: dougthompson@xmission.com
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: mchehab@osg.samsung.com
Cc: tthayer@opensource.altera.com
Link: http://lkml.kernel.org/r/1433512155-9906-1-git-send-email-dinguyen@opensource.altera.com
Signed-off-by: Borislav Petkov <bp@suse.de>
2015-06-24 18:16:12 +02:00
kbuild test robot
de2776787f EDAC, mce_amd_inj: Make inj_type static
It is used there only anyway.

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Cc: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>
Cc: Mauro Carvalho Chehab <m.chehab@samsung.com>
Cc: kbuild-all@01.org
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/20150605112426.GA97073@lkp-sb04
Signed-off-by: Borislav Petkov <bp@suse.de>
2015-06-24 18:16:11 +02:00
Thor Thayer
73bcc942f4 EDAC, altera: Add Arria10 EDAC support
The Arria10 SDRAM and ECC system differs significantly from the
Cyclone5 and Arria5 SoCs. This patch adds support for the Arria10
SoC.
1) IRQ handler needs to support SHARED IRQ
2) Support sberr and dberr address reporting.

Signed-off-by: Thor Thayer <tthayer@opensource.altera.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: devicetree@vger.kernel.org
Cc: dinguyen@opensource.altera.com
Cc: galak@codeaurora.org
Cc: grant.likely@linaro.org
Cc: ijc+devicetree@hellion.org.uk
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: m.chehab@samsung.com
Cc: mark.rutland@arm.com
Cc: pawel.moll@arm.com
Cc: robh+dt@kernel.org
Cc: tthayer.linux@gmail.com
Link: http://lkml.kernel.org/r/1433428128-7292-4-git-send-email-tthayer@opensource.altera.com
Signed-off-by: Borislav Petkov <bp@suse.de>
2015-06-24 18:16:09 +02:00
Thor Thayer
143f4a5ac5 EDAC, altera: Refactor for Altera CycloneV SoC
The Arria10 SoC uses a completely different SDRAM controller from the
earlier CycloneV and ArriaV SoCs. This patch abstracts the SDRAM bits
for the CycloneV/ArriaV SoCs in preparation for the Arria10 support.

Signed-off-by: Thor Thayer <tthayer@opensource.altera.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: devicetree@vger.kernel.org
Cc: dinguyen@opensource.altera.com
Cc: galak@codeaurora.org
Cc: grant.likely@linaro.org
Cc: ijc+devicetree@hellion.org.uk
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: m.chehab@samsung.com
Cc: mark.rutland@arm.com
Cc: pawel.moll@arm.com
Cc: robh+dt@kernel.org
Cc: tthayer.linux@gmail.com
Link: http://lkml.kernel.org/r/1433428128-7292-3-git-send-email-tthayer@opensource.altera.com
Signed-off-by: Borislav Petkov <bp@suse.de>
2015-06-24 18:16:08 +02:00
Thor Thayer
f9ae487e04 EDAC, altera: Generalize driver to use DT Memory size
The Arria10 SOC uses a completely different SDRAM controller from the
earlier CycloneV and ArriaV SoCs. The memory size is calculated in the
bootloader and passed via the device tree. Using this device tree size
is more generic than using the register fields to calculate the memory
size for different SDRAM controllers.

Signed-off-by: Thor Thayer <tthayer@opensource.altera.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: devicetree@vger.kernel.org
Cc: dinguyen@opensource.altera.com
Cc: galak@codeaurora.org
Cc: grant.likely@linaro.org
Cc: ijc+devicetree@hellion.org.uk
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: m.chehab@samsung.com
Cc: mark.rutland@arm.com
Cc: pawel.moll@arm.com
Cc: robh+dt@kernel.org
Cc: tthayer.linux@gmail.com
Link: http://lkml.kernel.org/r/1433428128-7292-2-git-send-email-tthayer@opensource.altera.com
Signed-off-by: Borislav Petkov <bp@suse.de>
2015-06-24 18:16:07 +02:00
Aravind Gopalakrishnan
99e21fea47 EDAC, mce_amd_inj: Add README file
Provide information about each injection file and its usage for ease of
use and in-band documentation. This is a good idea adapted from ftrace.

Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: mchehab@osg.samsung.com
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: x86-ml <x86@kernel.org>
Link: http://lkml.kernel.org/r/1433277362-10911-7-git-send-email-Aravind.Gopalakrishnan@amd.com
Signed-off-by: Borislav Petkov <bp@suse.de>
2015-06-24 18:15:51 +02:00
Aravind Gopalakrishnan
4c6034e8e1 EDAC, mce_amd_inj: Add individual permissions field to dfs_node
Add per-file permissions to the dfs_fls[] array.

In a later patch, we will add a README file that needs different
permissions. Hence the move here to add a perm field.

Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: mchehab@osg.samsung.com
Cc: x86-ml <x86@kernel.org>
Link: http://lkml.kernel.org/r/1433277362-10911-6-git-send-email-Aravind.Gopalakrishnan@amd.com
Signed-off-by: Borislav Petkov <bp@suse.de>
2015-06-24 15:17:18 +02:00
Aravind Gopalakrishnan
0451d14d05 EDAC, mce_amd_inj: Modify flags attribute to use string arguments
Use strings such as "hw" or "sw" to indicate the type of error injection
to be performed.

Current flags attribute derives the meanings of values that can be
programmed into it from asm/mce.h. Moving to defined strings for the
attribute allows this module to be self-sufficient and removes the
dependency. Also, we can introduce new flags as and when needed without
having to worry about conflicting with the flags already defined in
asm/mce.h.

Also, modify do_inject() to use the newly defined injection_type enum to
figure out the injection mechanism we need to use

Suggested-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: mchehab@osg.samsung.com
Cc: x86-ml <x86@kernel.org>
Link: http://lkml.kernel.org/r/1433277362-10911-4-git-send-email-Aravind.Gopalakrishnan@amd.com
[ Use strstrip() return value. ]
Signed-off-by: Borislav Petkov <bp@suse.de>
2015-06-03 16:47:51 +02:00
Aravind Gopalakrishnan
685d46d72b EDAC, mce_amd_inj: Read out number of MCE banks from the hardware
The number of banks for a given processor is encoded in
MSR_IA32_MCG_CAP[7:0]. So obtain the value from that MSR and use it for
sanity checking in inj_bank_set() instead of doing a family/model check.

Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: mchehab@osg.samsung.com
Link: http://lkml.kernel.org/r/1432753418-2985-3-git-send-email-Aravind.Gopalakrishnan@amd.com
Signed-off-by: Borislav Petkov <bp@suse.de>
2015-06-03 16:18:22 +02:00
Aravind Gopalakrishnan
e7f2ea1dbe EDAC, mce_amd_inj: Use MCE_INJECT_GET macro for bank node too
inj_bank_get() is generic enough that we can use the MCE_INJECT_GET
macro instead.

No functionality change.

Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: mchehab@osg.samsung.com
Cc: x86-ml <x86@kernel.org>
Link: http://lkml.kernel.org/r/1433277362-10911-2-git-send-email-Aravind.Gopalakrishnan@amd.com
Signed-off-by: Borislav Petkov <bp@suse.de>
2015-06-03 16:16:21 +02:00
Tony Luck
fa2ce64f85 sb_edac: support for Broadwell -EP and -EX
Basic support for the single socket Broadwell-DE processor
was added back in commit 1f39581a9a
   sb_edac: Add support for Broadwell-DE processor
This patch extends Broadwell support to cover the two
socket "-EP" and four socket "-EX" versions of Broadwell.
Only tested on the 2 socket - but this code is largely
cloned from the Haswell path.

Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-06-03 10:10:59 -03:00
Tony Luck
7d375bffa5 sb_edac: Fix support for systems with two home agents per socket
First noticed a problem on a 4 socket machine where EDAC only reported
half the DIMMS.  Tracked this down to the code that assumes that systems
with two home agents only have two memory channels on each agent. This
is true on 2 sockect ("-EP") machines. But four socket ("-EX") machines
have four memory channels on each home agent.

The old code would have had problems on two socket systems as it did
a shuffling trick to make the internals of the code think that the
channels from the first agent were '0' and '1', with the second agent
providing '2' and '3'. But the code didn't uniformly convert from
{ha,channel} tuples to this internal representation.

New code always considers up to eight channels.
On a machine with a single home agent these map easily to edac channels
0, 1, 2, 3. On machines with two home agents we map using:
  edac_channel = 4*ha# + channel
So on a -EP machine where each home agent supports only two channels
we'll fill in channels 0, 1, 4, 5, and on a -EX machine we use all of 0,
1, 2, 3, 4, 5, 6, 7.

[mchehab@osg.samsung.com: fold a fixup patch as per Tony's request and fixed
 a few CodingStyle issues]
Signed-off-by: Tony Luck <tony.luck@intel.com>
Acked-by: Aristeu Rozanski <aris@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-06-03 10:10:52 -03:00
Tony Luck
bb89e7141a sb_edac: Fix a typo and a thinko in address handling for Haswell
typo: "a7mode" chooses whether to use bits {8, 7, 9} or {8, 7, 6}
in the algorithm to spread access between memory resources. But
the non-a7mode path was incorrectly using GET_BITFIELD(addr, 7, 9)
and so picking bits {9, 8, 7}

thinko: BIT(1) of the dram_rule registers chooses whether to just
use the {8, 7, 6} (or {8, 7, 9}) bits mentioned above as they are,
or to XOR them with bits {18, 17, 16} but the code inverted the
test. We need the additional XOR when dram_rule{1} == 0.

Signed-off-by: Tony Luck <tony.luck@intel.com>
Acked-by: Aristeu Rozanski <aris@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-06-03 10:10:47 -03:00
Tony Luck
c44696fff0 EDAC: Remove arbitrary limit on number of channels
Currently set to "6", but the reset of the code will dynamically
allocate as needed.  We need to go to "8" today, but drop the check
completely to save doing this again when we need even larger numbers.

Signed-off-by: Tony Luck <tony.luck@intel.com>
Acked-by: Aristeu Rozanski <aris@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-06-03 10:10:22 -03:00
Arnd Bergmann
451bb7fbcc EDAC, xgene: Fix cpuid abuse
The new x-gene EDAC driver incorrectly tried to figure out the version
of one of its IP blocks by looking at the version of the CPU core, which
is only vagely related.

This removes the incorrect code and instead uses the version of the IP
block in the compatible string where it belongs.

Found using build testing on x86, which does not provide the arm64
cpuid interface.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
[ Changed subnode to "apm,xgene-edac-pmd-v2", adjusted check. ]
Signed-off-by: Loc Ho <lho@apm.com>
Cc: devicetree@vger.kernel.org
Cc: dougthompson@xmission.com
Cc: ijc+devicetree@hellion.org.uk
Cc: jcm@redhat.com
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: mark.rutland@arm.com
Cc: mchehab@osg.samsung.com
Cc: patches@apm.com
Cc: robh+dt@kernel.org
Link: http://lkml.kernel.org/r/3195065.IK73o60xya@wuerfel
Signed-off-by: Borislav Petkov <bp@suse.de>
2015-06-02 19:07:50 +02:00
York Sun
2ce39109a5 EDAC, mpc85xx: Extend error address to 64 bit
Extend err_addr to cover 64 bits for DDR errors.

Signed-off-by: York Sun <yorksun@freescale.com>
Acked-by: Johannes Thumshirn <morbidrsa@gmail.com>
Cc: Mingkai.hu@freescale.com
Link: http://lkml.kernel.org/r/1431425022-44766-2-git-send-email-Wenbin.Song@freescale.com
Signed-off-by: songwenbin <wenbin.song@freescale.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
2015-05-31 12:51:08 +02:00
York Sun
74210267a5 EDAC, mpc8xxx: Adapt for FSL SoC
Remove mpc83xx and mpc85xx as dependency.

Signed-off-by: York Sun <yorksun@freescale.com>
Acked-by: Johannes Thumshirn <morbidrsa@gmail.com>
Cc: Mingkai.hu@freescale.com
Link: http://lkml.kernel.org/r/1431425022-44766-1-git-send-email-Wenbin.Song@freescale.com
Signed-off-by: songwenbin <wenbin.song@freescale.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
2015-05-31 12:50:31 +02:00
Borislav Petkov
cc14c5a808 EDAC, edac_stub: Drop arch-specific include
<asm/edac.h> contains only the arch-specific scrubbing function and is
thus not needed in edac_stub.c. Kill it.

Signed-off-by: Borislav Petkov <bp@suse.de>
2015-05-29 22:01:00 +02:00
Loc Ho
0d4429301c EDAC: Add APM X-Gene SoC EDAC driver
Add support for the APM X-Gene SoC EDAC driver.

Signed-off-by: Loc Ho <lho@apm.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: devicetree@vger.kernel.org
Cc: dougthompson@xmission.com
Cc: ijc+devicetree@hellion.org.uk
Cc: jcm@redhat.com
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: mark.rutland@arm.com
Cc: mchehab@osg.samsung.com
Cc: patches@apm.com
Cc: robh+dt@kernel.org
Link: http://lkml.kernel.org/r/1432337580-3750-5-git-send-email-lho@apm.com
Signed-off-by: Borislav Petkov <bp@suse.de>
2015-05-29 11:39:24 +02:00
Borislav Petkov
b01aec9b2c EDAC: Cleanup atomic_scrub mess
So first of all, this atomic_scrub() function's naming is bad. It looks
like an atomic_t helper. Change it to edac_atomic_scrub().

The bigger problem is that this function is arch-specific and every new
arch which doesn't necessarily need that functionality still needs to
define it, otherwise EDAC doesn't compile.

So instead of doing that and including arch-specific headers, have each
arch define an EDAC_ATOMIC_SCRUB symbol which can be used in edac_mc.c
for ifdeffery. Much cleaner.

And we already are doing this with another symbol - EDAC_SUPPORT. This
is also much cleaner than having CONFIG_EDAC enumerate all the arches
which need/have EDAC support and drivers.

This way I can kill the useless edac.h header in tile too.

Acked-by: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Chris Metcalf <cmetcalf@ezchip.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Doug Thompson <dougthompson@xmission.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-edac@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: "Maciej W. Rozycki" <macro@codesourcery.com>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: "Steven J. Hill" <Steven.Hill@imgtec.com>
Cc: x86@kernel.org
Signed-off-by: Borislav Petkov <bp@suse.de>
2015-05-28 15:31:53 +02:00
Luis R. Rodriguez
735c0f8f12 amd64_edac: enforce synchronous probe
While testing asynchronous PCI probe on this driver I noticed it failed
because the driver checks if any of the PCI devices have been bound to
the driver after registering it, which obviously does not work if
probing is asynchronous.

While there are patches and discussions on how the driver should behave
are ongoing, let's enforce synchronous probe for this driver for now.

Reviewed-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-20 00:25:25 -07:00
Thor Thayer
7e52a03646 EDAC, altera: Do not build it as a module
The SDRAM EDAC requires SDRAM configuration/initialization before SDRAM
is accessed (in the preloader) and therefore before Linux is loaded.
Having a module compile is not desired so force to be built into kernel.

Signed-off-by: Thor Thayer <tthayer@opensource.altera.com>
Cc: mchehab@osg.samsung.com
Cc: Takashi Iwai <tiwai@suse.de>
Link: http://lkml.kernel.org/r/1429308974-26380-3-git-send-email-tthayer@opensource.altera.com
Signed-off-by: Borislav Petkov <bp@suse.de>
2015-05-03 11:56:52 +02:00
Fabian Frederick
1afaa05515 EDAC: Constify of_device_id array
of_device_id is always used as const. See driver.of_match_table and open
firmware functions.

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Doug Thompson <dougthompson@xmission.com>
Cc: Robert Richter <rric@kernel.org>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Johannes Thumshirn <johannes.thumshirn@men.de>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Sören Brinkmann <soren.brinkmann@xilinx.com>
Cc: linux-edac@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/1426535685-25996-10-git-send-email-fabf@skynet.be
Signed-off-by: Borislav Petkov <bp@suse.de>
2015-03-20 17:50:07 +01:00
Julia Lawall
18b44b2b95 EDAC, i82443bxgx: Don't export static symbol
The semantic patch that fixes this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r@
type T;
identifier f;
@@

static T f (...) { ... }

@@
identifier r.f;
declarer name EXPORT_SYMBOL_GPL;
@@

-EXPORT_SYMBOL_GPL(f);
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Doug Thompson <dougthompson@xmission.com>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Tim Small <tim@buttersideup.com>
Link: http://lkml.kernel.org/r/1426092997-30605-13-git-send-email-Julia.Lawall@lip6.fr
Signed-off-by: Borislav Petkov <bp@suse.de>
2015-03-11 20:39:15 +01:00
Borislav Petkov
2ec591ac74 EDAC, amd64_edac: Get rid of per-node driver instances
... and do the proper thing using EDAC core facilities.

Cc: Daniel J Blueman <daniel@numascale.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
2015-02-23 13:16:01 +01:00
Alexey Khoroshilov
c6b97bcf8e EDAC: Properly unwind on failure path in edac_init()
edac_init() does not deallocate already allocated resources on failure
path.

Found by Linux Driver Verification project (linuxtesting.org).

 [ Boris: The unwind path functions have __exit annotation but are being
   used in an __init function, leading to section mismatches. Drop the
   section annotation and make them normal functions. ]

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Link: http://lkml.kernel.org/r/1423203162-26368-1-git-send-email-khoroshilov@ispras.ru
Signed-off-by: Borislav Petkov <bp@suse.de>
2015-02-23 13:13:07 +01:00
Takashi Iwai
fc7cc6b782 EDAC: highbank: Use static attribute groups for sysfs entries
... instead of manual device_create_file() and device_remove_file()
calls.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: http://lkml.kernel.org/r/1423046938-18111-9-git-send-email-tiwai@suse.de
Signed-off-by: Borislav Petkov <bp@suse.de>
2015-02-23 13:12:22 +01:00
Takashi Iwai
1bf06a0d55 EDAC: octeon: Use static attribute groups for sysfs entries
... instead of manual device_create_file() and device_remove_file()
calls.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: http://lkml.kernel.org/r/1423046938-18111-8-git-send-email-tiwai@suse.de
Signed-off-by: Borislav Petkov <bp@suse.de>
2015-02-23 13:12:05 +01:00
Takashi Iwai
917c85b545 EDAC: mpc85xx: Use static attribute groups for sysfs entries
... instead of manual device_create_file() and device_remove_file()
calls.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Cc: Johannes Thumshirn <johannes.thumshirn@men.de>
Link: http://lkml.kernel.org/r/1423046938-18111-7-git-send-email-tiwai@suse.de
Signed-off-by: Borislav Petkov <bp@suse.de>
2015-02-23 13:11:40 +01:00
Takashi Iwai
2eace188f6 EDAC: i7core: Use static attribute groups for sysfs entries
... instead of manual device_create_file() and device_remove_file()
calls.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
[ Add NULL terminator to i7core_dev_attrs[] caught by the build robot. ]
Reported-by: Huang Ying <ying.huang@intel.com>
Link: http://lkml.kernel.org/r/1423046938-18111-6-git-send-email-tiwai@suse.de
Signed-off-by: Borislav Petkov <bp@suse.de>
2015-02-23 13:09:39 +01:00
Takashi Iwai
e97d7e3816 EDAC: i7core: Return proper error codes for kzalloc() errors
... instead of possibly uninitialized return value.

Signed-off-by: Takashi 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: Borislav Petkov <bp@suse.de>
2015-02-23 13:08:45 +01:00
Takashi Iwai
e339f1ec97 EDAC: amd64: Use static attribute groups
Instead of calling device_create_file() and device_remove_file()
manually, pass the static attribute groups with the new
edac_mc_add_mc_with_groups(). The conditional creation of inject sysfs
files is done by a proper is_visible callback.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: http://lkml.kernel.org/r/1423046938-18111-4-git-send-email-tiwai@suse.de
Signed-off-by: Borislav Petkov <bp@suse.de>
2015-02-23 13:08:09 +01:00
Takashi Iwai
4e8d230de9 EDAC: Allow to pass driver-specific attribute groups
Add edac_mc_add_mc_with_groups() for initializing the mem_ctl_info
object with the optional attribute groups.  This allows drivers to
pass additional sysfs entries without manual (and racy)
device_create_file() and co calls.

edac_mc_add_mc() is kept as is, just calling edac_mc_add_with_groups()
with NULL groups.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: http://lkml.kernel.org/r/1423046938-18111-3-git-send-email-tiwai@suse.de
Signed-off-by: Borislav Petkov <bp@suse.de>
2015-02-23 13:07:41 +01:00
Takashi Iwai
2c1946b6d6 EDAC: Use static attribute groups for managing sysfs entries
Instead of manual calls of device_create_file() and
device_remove_file(), use static attribute groups with proper
is_visible callbacks for managing the sysfs entries.

This simplifies the code a lot and avoids the possible races.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: http://lkml.kernel.org/r/1423046938-18111-2-git-send-email-tiwai@suse.de
Signed-off-by: Borislav Petkov <bp@suse.de>
2015-02-23 13:06:58 +01:00
Markus Elfring
7260194595 EDAC: Delete unnecessary checks before pci_dev_put()
The pci_dev_put() function tests whether its argument is NULL and thus
the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Link: http://lkml.kernel.org/r/54CFC12C.9010002@users.sourceforge.net
Signed-off-by: Borislav Petkov <bp@suse.de>
2015-02-23 13:06:23 +01:00
Linus Torvalds
477ea11696 * A fix to sb_edac for proper detection on SNB machines
* A fix to amd64_edac to not explode on Numascale machines with more
 than 16 memory controllers, from Daniel J Blueman.
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Merge tag 'edac_fixes_for_3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp

Pull two EDAC fixes from Borislav Petkov:

 - A fix to sb_edac for proper detection on SNB machines

 - A fix to amd64_edac to not explode on Numascale machines with more
   than 16 memory controllers, from Daniel J Blueman.

* tag 'edac_fixes_for_3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
  EDAC, amd64_edac: Prevent OOPS with >16 memory controllers
  sb_edac: Fix detection on SNB machines
2015-02-19 11:18:14 -08:00
Daniel J Blueman
0c510cc83b EDAC, amd64_edac: Prevent OOPS with >16 memory controllers
When DRAM errors occur on memory controllers after EDAC_MAX_MCS (16),
the kernel fatally dereferences unallocated structures, see splat below;
this occurs on at least NumaConnect systems.

Fix by checking if a memory controller info structure was found.

BUG: unable to handle kernel NULL pointer dereference at 0000000000000320
IP: [<ffffffff819f714f>] decode_bus_error+0x2f/0x2b0
PGD 2f8b5a3067 PUD 2f8b5a2067 PMD 0
Oops: 0000 [#2] SMP
Modules linked in:
CPU: 224 PID: 11930 Comm: stream_c.exe.gn Tainted: G   D    3.19.0 #1
Hardware name: Supermicro H8QGL/H8QGL, BIOS 3.5b    01/28/2015
task: ffff8807dbfb8c00 ti: ffff8807dd16c000 task.ti: ffff8807dd16c000
RIP: 0010:[<ffffffff819f714f>] [<ffffffff819f714f>] decode_bus_error+0x2f/0x2b0
RSP: 0000:ffff8907dfc03c48 EFLAGS: 00010297
RAX: 0000000000000001 RBX: 9c67400010080a13 RCX: 0000000000001dc6
RDX: 000000001dc61dc6 RSI: ffff8907dfc03df0 RDI: 000000000000001c
RBP: ffff8907dfc03ce8 R08: 0000000000000000 R09: 0000000000000022
R10: ffff891fffa30380 R11: 00000000001cfc90 R12: 0000000000000008
R13: 0000000000000000 R14: 000000000000001c R15: 00009c6740001000
FS: 00007fa97ee18700(0000) GS:ffff8907dfc00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000320 CR3: 0000003f889b8000 CR4: 00000000000407e0
Stack:
 0000000000000000 ffff8907dfc03df0 0000000000000008 9c67400010080a13
 000000000000001c 00009c6740001000 ffff8907dfc03c88 ffffffff810e4f9a
 ffff8907dfc03ce8 ffffffff81b375b9 0000000000000000 0000000000000010
Call Trace:
 <IRQ>
 ? vprintk_default
 ? printk
 amd_decode_mce
 notifier_call_chain
 atomic_notifier_call_chain
 mce_log
 machine_check_poll
 mce_timer_fn
 ? mce_cpu_restart
 call_timer_fn.isra.29
 run_timer_softirq
 __do_softirq
 irq_exit
 smp_apic_timer_interrupt
 apic_timer_interrupt
 <EOI>
 ? down_read_trylock
 __do_page_fault
 ? __schedule
 do_page_fault
 page_fault

Signed-off-by: Daniel J Blueman <daniel@numascale.com>
Link: http://lkml.kernel.org/r/1424144078-24589-1-git-send-email-daniel@numascale.com
Cc: stable@vger.kernel.org
[ Boris: massage commit message ]
Signed-off-by: Borislav Petkov <bp@suse.de>
2015-02-17 10:32:12 +01:00
Borislav Petkov
11249e7399 sb_edac: Fix detection on SNB machines
d0585cd815 ("sb_edac: Claim a different PCI device") changed the
probing of sb_edac to look for PCI device 0x3ca0:

3f:0e.0 System peripheral: Intel Corporation Xeon E5/Core i7 Processor Home Agent (rev 07)
00: 86 80 a0 3c 00 00 00 00 07 00 80 08 00 00 80 00
...

but we're matching for 0x3ca8, i.e. PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_TA
in sbridge_probe() therefore the probing fails.

Changing it to probe for 0x3ca0 (PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_HA0),
.i.e., the 14.0 device, fixes the issue and driver loads successfully
again:

[ 2449.013120] EDAC DEBUG: sbridge_init:
[ 2449.017029] EDAC sbridge: Seeking for: PCI ID 8086:3ca0
[ 2449.022368] EDAC DEBUG: sbridge_get_onedevice: Detected 8086:3ca0
[ 2449.028498] EDAC sbridge: Seeking for: PCI ID 8086:3ca0
[ 2449.033768] EDAC sbridge: Seeking for: PCI ID 8086:3ca8
[ 2449.039028] EDAC DEBUG: sbridge_get_onedevice: Detected 8086:3ca8
[ 2449.045155] EDAC sbridge: Seeking for: PCI ID 8086:3ca8
...

Add a debug printk while at it to be able to catch the failure in the
future and dump driver version on successful load.

Fixes: d0585cd815 ("sb_edac: Claim a different PCI device")
Cc: stable@vger.kernel.org # 3.18
Acked-by: Aristeu Rozanski <aris@redhat.com>
Cc: Tony Luck <tony.luck@intel.com>
Acked-by: Andy Lutomirski <luto@amacapital.net>
Acked-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
2015-02-09 16:55:26 +01:00
Dan Carpenter
30263b4052 EDAC, mv64x60_edac: Fix an error code in probe()
If edac_mc_add_mc() fails then we should preserve the error code, but
instead the current code returns success.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: http://lkml.kernel.org/r/20150128191351.GC10259@mwanda
Signed-off-by: Borislav Petkov <bp@suse.de>
2015-01-30 17:00:43 +01:00
Borislav Petkov
f11135d87d EDAC: edac_mc_sysfs: Make stuff static
Fix sparse warnings.

Signed-off-by: Borislav Petkov <bp@suse.de>
2015-01-30 14:49:04 +01:00
Junjie Mao
1bf1950c4e EDAC: Fix the leak of mci->bus->name when bus_register fails
Also use goto labels for all failure paths in
edac_create_sysfs_mci_device and update meaningless labels.

Signed-off-by: Junjie Mao <junjie.mao@hotmail.com>
Link: http://lkml.kernel.org/r/BLU436-SMTP25291B6B612942A212AEBFE95300@phx.gbl
[ Boris: Use ! for 0 checks and add newlines for less crammed code. ]
Signed-off-by: Borislav Petkov <bp@suse.de>
2015-01-30 14:38:45 +01:00
Rickard Strandqvist
a4972b1b9a edac: i5100_edac: Remove unused i5100_recmema_dm_buf_id
Remove the function i5100_recmema_dm_buf_id() that is not used anywhere.

This was partially found by using a static code analysis program called
cppcheck.

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Link: http://lkml.kernel.org/r/1420999030-21770-1-git-send-email-rickard_strandqvist@spectrumdigital.se
Signed-off-by: Borislav Petkov <bp@suse.de>
2015-01-12 16:00:56 +01:00
Punnaiah Choudary Kalluri
ae9b56e399 EDAC, synps: Add EDAC support for zynq ddr ecc controller
Add EDAC support for ecc errors reporting on the synopsys ddr
controller. The ddr ecc controller corrects single bit errors and
detects double bit errors.

Selected important-ish notes from the changelog:

- I have not taken care of spliting synps_edac_geterror_info function as
it adds additional indentation levels and moreover the existing changes
were made as part of the v2 review comments

- Removed dt binding info as already there is a binding info available
under memorycontroller. so, updated ecc info there.

- Shortened the prefix "sysnopsys" to "synps"

Signed-off-by: Punnaiah Choudary Kalluri <punnaia@xilinx.com>
Link: http://lkml.kernel.org/r/a728a8d4678f4dbf9de189a480297c3d@BY2FFO11FD034.protection.gbl
[ Boris: massage commit message. ]
Signed-off-by: Borislav Petkov <bp@suse.de>
2015-01-07 11:42:05 +01:00