Drop CONFIG_EDAC_DEBUG ifdeffery too, while at it.
Tested-by: Loc Ho <lho@apm.com>
Cc: linux-edac@vger.kernel.org
Signed-off-by: Borislav Petkov <bp@suse.de>
This driver creates its debugfs hierarchy under the toplevel debugfs dir
- see i5100_init() - so make it use edac_debugfs_create_dir_at( , NULL)
because we're not breaking userspace. Oh well.
Signed-off-by: Borislav Petkov <bp@suse.de>
... into a separate compilation unit and drop a couple of
CONFIG_EDAC_DEBUG ifdefferies. Rename edac_create_debug_nodes() to
edac_create_debugfs_nodes(), while at it.
No functionality change.
Cc: <linux-edac@vger.kernel.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
dimm_dev_type has been incorrectly determined in sb_edac. This patch fixes it
for Ivy Bridge and Haswell only since nothing like exists for Sandy Bridge.
We tested this patch in multiple systems matching the results with the
installed memory modules.
Acked-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Aristeu Rozanski <aris@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
In case the memory banks are populated so the first channel isn't used, the
DDRIO PCI device won't be visible and it won't be possible to determine the
memory type.
Acked-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Aristeu Rozanski <aris@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Pull RAS updates from Ingo Molnar:
"MCE handling updates, but also some generic drivers/edac/ changes to
better organize the Kconfig space"
* 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/ras: Move AMD MCE injector to arch/x86/ras/
x86/mce: Add a wrapper around mce_log() for injection
x86/mce: Rename rcu_dereference_check_mce() to mce_log_get_idx_check()
RAS: Add a menuconfig option with descriptive text
x86/mce: Reenable CMCI banks when swiching back to interrupt mode
x86/mce: Clear Local MCE opt-in before kexec
x86/mce: Remove unused function declarations
x86/mce: Kill drain_mcelog_buffer()
x86/mce: Avoid potential deadlock due to printk() in MCE context
x86/mce: Remove the MCE ring for Action Optional errors
x86/mce: Don't use percpu workqueues
x86/mce: Provide a lockless memory pool to save error records
x86/mce: Reuse one of the u16 padding fields in 'struct mce'
This is an x86-specific module and would benefit from being
closer to the arch code. Move it there. Update copyright while
at it.
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Link: http://lkml.kernel.org/r/1439396985-12812-14-git-send-email-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This used to flush out MCEs logged during early boot and which
were in the MCA registers from a previous system run. No need
for that now, since we've moved to a genpool.
Suggested-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1439396985-12812-7-git-send-email-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Use unified genpool to save Action Optional error events and put
Action Optional error handling in the same notification chain as
MCE error decoding.
Signed-off-by: Chen, Gong <gong.chen@linux.intel.com>
[ Fold in subsequent patch from Boris for early boot logging. ]
Signed-off-by: Tony Luck <tony.luck@intel.com>
[ Correct a lot. ]
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1439396985-12812-5-git-send-email-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
The commit
de3910eb79 ("edac: change the mem allocation scheme to
make Documentation/kobject.txt happy")
changed the memory allocation for the csrows member. But ppc4xx_edac was
forgotten in the patch. Fix it.
Signed-off-by: Michael Walle <michael@walle.cc>
Cc: <stable@vger.kernel.org>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Link: http://lkml.kernel.org/r/1437469253-8611-1-git-send-email-michael@walle.cc
Signed-off-by: Borislav Petkov <bp@suse.de>
Currently, when decoding an MCE, we display 'CE' for a Deferred error, like
this:
[Hardware Error]: CPU:0 (15:2:0) MC4_STATUS[Over|CE|MiscV|-|AddrV|Deferred|-|UECC]: 0xdc04b00095080813
When the 'UC' bit in the MCx_STATUS register is clear, the error status
is either a Corrected error or Deferred error as determined by the
'Deferred' bit. So do not print 'CE' on a deferred error.
Refer to AMD Error Scope Hierarchy table in a newer BKDG (example:
49125_15h_Models_30h-3Fh_BKDG.pdf, section "RAS Features").
Signed-off-by: Aravind Gopalakrishnan <aravind.gopalakrishnan@amd.com>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/1436788382-6463-1-git-send-email-aravind.gopalakrishnan@amd.com
Signed-off-by: Borislav Petkov <bp@suse.de>
platform_driver does not need to set an owner because
platform_driver_register() will set it.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: Loc Ho <lho@apm.com>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Link: http://lkml.kernel.org/r/1436507243-11159-1-git-send-email-k.kozlowski@samsung.com
Signed-off-by: Borislav Petkov <bp@suse.de>
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
...
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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
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
<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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
* 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
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>
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>
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>
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>
Fixes the following sparse warnings:
drivers/edac/mce_amd_inj.c:204:3: warning:
symbol 'dfs_fls' was not declared. Should it be static?
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Link: http://lkml.kernel.org/r/1418087095-14174-1-git-send-email-weiyj_lk@163.com
Signed-off-by: Borislav Petkov <bp@suse.de>
Here's the set of driver core patches for 3.19-rc1.
They are dominated by the removal of the .owner field in platform
drivers. They touch a lot of files, but they are "simple" changes, just
removing a line in a structure.
Other than that, a few minor driver core and debugfs changes. There are
some ath9k patches coming in through this tree that have been acked by
the wireless maintainers as they relied on the debugfs changes.
Everything has been in linux-next for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core update from Greg KH:
"Here's the set of driver core patches for 3.19-rc1.
They are dominated by the removal of the .owner field in platform
drivers. They touch a lot of files, but they are "simple" changes,
just removing a line in a structure.
Other than that, a few minor driver core and debugfs changes. There
are some ath9k patches coming in through this tree that have been
acked by the wireless maintainers as they relied on the debugfs
changes.
Everything has been in linux-next for a while"
* tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits)
Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries"
fs: debugfs: add forward declaration for struct device type
firmware class: Deletion of an unnecessary check before the function call "vunmap"
firmware loader: fix hung task warning dump
devcoredump: provide a one-way disable function
device: Add dev_<level>_once variants
ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries
ath: use seq_file api for ath9k debugfs files
debugfs: add helper function to create device related seq_file
drivers/base: cacheinfo: remove noisy error boot message
Revert "core: platform: add warning if driver has no owner"
drivers: base: support cpu cache information interface to userspace via sysfs
drivers: base: add cpu_device_create to support per-cpu devices
topology: replace custom attribute macros with standard DEVICE_ATTR*
cpumask: factor out show_cpumap into separate helper function
driver core: Fix unbalanced device reference in drivers_probe
driver core: fix race with userland in device_add()
sysfs/kernfs: make read requests on pre-alloc files use the buffer.
sysfs/kernfs: allow attributes to request write buffer be pre-allocated.
fs: sysfs: return EGBIG on write if offset is larger than file size
...
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Merge tag 'edac/v3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac
Pull edac updates from Mauro Carvalho Chehab:
- Broadwell-DE support on sb-edac driver
- Some fixes at sb-edac driver
* tag 'edac/v3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac:
sb_edac: Fix typo computing number of banks
sb_edac: Add support for Broadwell-DE processor
sb_edac: Fix discovery of top-of-low-memory for Haswell
sb_edac: Fix erroneous bytes->gigabytes conversion
sb_edac: Fix off-by-one error in number of channels
Pull x86 RAS update from Ingo Molnar:
"The biggest change in this cycle is better support for UCNA
(UnCorrected No Action) events:
"Handle all uncorrected error reports in the same way (soft
offline the page). We used to only do that for SRAO
(software recoverable action optional) machine checks, but
it makes sense to also do it for UCNA (UnCorrected No
Action) logs found by CMCI or polling."
plus various x86 MCE handling updates and fixes"
* 'x86-ras-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mce: Spell "panicked" correctly
x86, mce: Support memory error recovery for both UCNA and Deferred error in machine_check_poll
x86, mce, severity: Extend the the mce_severity mechanism to handle UCNA/DEFERRED error
x86, MCE, AMD: Assign interrupt handler only when bank supports it
x86, MCE, AMD: Drop software-defined bank in error thresholding
x86, MCE, AMD: Move invariant code out from loop body
x86, MCE, AMD: Correct thresholding error logging
x86, MCE, AMD: Use macros to compute bank MSRs
RAS, HWPOISON: Fix wrong error recovery status
GHES: Make ghes_estatus_caches static
APEI, GHES: Cleanup unnecessary function for lockless list
* Enablement for AMD F15h models 0x60 CPUs. Most notably DDR4 RAM
support. Out of tree stuff is
arch/x86/kernel/amd_nb.c | 2 +
include/linux/pci_ids.h | 2 +
adding the required PCI IDs. From Aravind Gopalakrishnan.
* Enable amd64_edac for 32-bit due to popular demand. From Tomasz Pala.
* Convert the AMD MCE injection module to debugfs, where it belongs.
* Misc EDAC cleanups
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Merge tag 'edac_for_3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp
Pull EDAC updates from Borislav Petkov:
"EDAC updates all over the place:
- Enablement for AMD F15h models 0x60 CPUs. Most notably DDR4 RAM
support. Out of tree stuff is adding the required PCI IDs. From
Aravind Gopalakrishnan.
- Enable amd64_edac for 32-bit due to popular demand. From Tomasz
Pala.
- Convert the AMD MCE injection module to debugfs, where it belongs.
- Misc EDAC cleanups"
* tag 'edac_for_3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
EDAC, MCE, AMD: Correct formatting of decoded text
EDAC, mce_amd_inj: Add an injector function
EDAC, mce_amd_inj: Add hw-injection attributes
EDAC, mce_amd_inj: Enable direct writes to MCE MSRs
EDAC, mce_amd_inj: Convert mce_amd_inj module to debugfs
EDAC: Delete unnecessary check before calling pci_dev_put()
EDAC, pci_sysfs: remove unneccessary ifdef around entire file
ghes_edac: Use snprintf() to silence a static checker warning
amd64_edac: Build module on x86-32
EDAC, MCE, AMD: Add decoding table for MC6 xec
amd64_edac: Add F15h M60h support
{mv64x60,ppc4xx}_edac,: Remove deprecated IRQF_DISABLED
EDAC: Sync memory types and names
EDAC: Add DDR3 LRDIMM entries to edac_mem_types
x86, amd_nb: Add device IDs to NB tables for F15h M60h
pci_ids: Add PCI device IDs for F15h M60h
Code will always think there are 16 banks because of a typo
Reported-by: Misha
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>
Broadwell-DE is the microserver version of next generation Xeon
processors. A whole bunch of new PCIe device ids, but otherwise
pretty much the same as Haswell.
Acked-by: Aristeu Rozanski <aris@redhat.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Haswell moved the TOLM/TOHM registers to a different device and offset.
The sb_edac driver accounted for the change of device, but not for the
new offset. There was also a typo in the constant to fill in the low
26 bits (was 0x1ffffff, should be 0x3ffffff).
This resulted in a bogus value for the top of low memory:
EDAC DEBUG: get_memory_layout: TOLM: 0.032 GB (0x0000000001ffffff)
which would result in EDAC refusing to translate addresses for
errors above the bogus value and below 4GB:
sbridge MC3: HANDLING MCE MEMORY ERROR
sbridge MC3: CPU 0: Machine Check Event: 0 Bank 7: 8c00004000010090
sbridge MC3: TSC 0
sbridge MC3: ADDR 2000000
sbridge MC3: MISC 523eac86
sbridge MC3: PROCESSOR 0:306f3 TIME 1414600951 SOCKET 0 APIC 0
MC3: 1 CE Error at TOLM area, on addr 0x02000000 on any memory ( page:0x0 offset:0x0 grain:32 syndrome:0x0)
With the fix we see the correct TOLM value:
DEBUG: get_memory_layout: TOLM: 2.048 GB (0x000000007fffffff)
and we decode address 2000000 correctly:
sbridge MC3: HANDLING MCE MEMORY ERROR
sbridge MC3: CPU 0: Machine Check Event: 0 Bank 7: 8c00004000010090
sbridge MC3: TSC 0
sbridge MC3: ADDR 2000000
sbridge MC3: MISC 523e1086
sbridge MC3: PROCESSOR 0:306f3 TIME 1414601319 SOCKET 0 APIC 0
DEBUG: get_memory_error_data: SAD interleave package: 0 = CPU socket 0, HA 0, shiftup: 0
DEBUG: get_memory_error_data: TAD#0: address 0x0000000002000000 < 0x000000007fffffff, socket interleave 1, channel interleave 4 (offset 0x00000000), index 0, base ch: 0, ch mask: 0x01
DEBUG: get_memory_error_data: RIR#0, limit: 4.095 GB (0x00000000ffffffff), way: 1
DEBUG: get_memory_error_data: RIR#0: channel address 0x00200000 < 0xffffffff, RIR interleave 0, index 0
DEBUG: sbridge_mce_output_error: area:DRAM err_code:0001:0090 socket:0 channel_mask:1 rank:0
MC3: 1 CE memory read error on CPU_SrcID#0_Channel#0_DIMM#0 (channel:0 slot:0 page:0x2000 offset:0x0 grain:32 syndrome:0x0 - area:DRAM err_code:0001:0090 socket:0 channel_mask:1 rank: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>
Write out MCx_ADDR into the more humanly readable "MCx Error Address"
and remove double colon in the output.
Cc: Aravind Gopalakrishnan <aravind.gopalakrishnan@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Selectively inject either a real MCE or a sw-only version which
exercises the decoding path only. The hardware-injected MCE triggers a
machine check exception (#MC) so that the MCE handler can be bothered to
do something too.
Signed-off-by: Borislav Petkov <bp@suse.de>
Until now, the mce_severity mechanism can only identify the severity
of UCNA error as MCE_KEEP_SEVERITY. Meanwhile, it is not able to filter
out DEFERRED error for AMD platform.
This patch extends the mce_severity mechanism for handling
UCNA/DEFERRED error. In order to do this, the patch introduces a new
severity level - MCE_UCNA/DEFERRED_SEVERITY.
In addition, mce_severity is specific to machine check exception,
and it will check MCIP/EIPV/RIPV bits. In order to use mce_severity
mechanism in non-exception context, the patch also introduces a new
argument (is_excp) for mce_severity. `is_excp' is used to explicitly
specify the calling context of mce_severity.
Reviewed-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>
Signed-off-by: Chen Yucong <slaoub@gmail.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
The pci_dev_put() function tests whether its argument is NULL and then
returns immediately. Thus the test before 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/546CB20D.4070808@users.sourceforge.net
[ Boris: commit message. ]
Signed-off-by: Borislav Petkov <bp@suse.de>
The file edac_pci_sysfs.c is dependent on CONFIG_PCI. This is already
modelled in the Makefile, but edac_pci_sysfs.o is still contained in
the list of files compiled even without CONFIG_PCI.
This change removes edac_pci_sysfs.o from the list of built objects
when not having CONFIG_PCI enabled and removes the then-unnecessary
ifdef from the source file.
Signed-off-by: Andreas Ruprecht <rupran@einserver.de>
Link: http://lkml.kernel.org/r/1407697803-3837-1-git-send-email-rupran@einserver.de
Signed-off-by: Borislav Petkov <bp@suse.de>
My static checker complains because the "e->location" has up to 256
characters but we are copying it into the "pvt->detail_location" which
only has space for 240 characters. That's not counting the surrounding
text and the "e->other_detail" string which can be over 80 characters
long.
I am not familiar with this code but presumably it normally works.
Let's add a limit though for safety.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Link: http://lkml.kernel.org/r/20140801082514.GD28869@mwanda
Signed-off-by: Borislav Petkov <bp@suse.de>
By popular demand, enable amd64_edac on 32-bit too.
Boris:
- update Kconfig text.
- add a warning on load which states that 32-bit configurations are unsupported.
Signed-off-by: Tomasz Pala <gotar@polanet.pl>
Link: http://lkml.kernel.org/r/20141102102212.GA7034@polanet.pl
Signed-off-by: Borislav Petkov <bp@suse.de>
This patch adds support for ECC error decoding for F15h M60h processor.
Aside from the usual changes, the patch adds support for some new features
in the processor:
- DDR4(unbuffered, registered); LRDIMM DDR3 support
- relevant debug messages have been modified/added to report these
memory types
- new dbam_to_cs mappers
- if (F15h M60h && LRDIMM); we need a 'multiplier' value to find
cs_size. This multiplier value is obtained from the per-dimm
DCSM register. So, change the interface to accept a 'cs_mask_nr'
value to facilitate this calculation
- switch-casing determine_memory_type()
- done to cleanse the function of too many if-else statements
and improve readability
- This is now called early in read_mc_regs() to cache dram_type
Misc cleanup:
- amd64_pci_table[] is condensed by using PCI_VDEVICE macro.
Testing details:
Tested the patch by injecting 'ECC' type errors using mce_amd_inj
and error decoding works fine.
Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>
Link: http://lkml.kernel.org/r/1414617483-4941-1-git-send-email-Aravind.Gopalakrishnan@amd.com
[ Boris: determine_memory_type() cleanups ]
Signed-off-by: Borislav Petkov <bp@suse.de>
Make keeping the sync between the mem_types enum and the actual string
names simpler by using designated initializers.
Signed-off-by: Borislav Petkov <bp@suse.de>
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Merge tag 'edac/v3.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac
Pull edac updates from Mauro Carvalho Chehab:
"Nothing really exiting here: just one bug fix at sb_edac, and some
changes to allow other drivers to use some shared PCI addresses"
* tag 'edac/v3.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac:
sb_edac: Claim a different PCI device
Move Intel SNB device ids from sb_edac to pci_ids.h
sb_edac: avoid INTERNAL ERROR message in EDAC with unspecified channel
These are changes for drivers that are intimately tied to some SoC
and for some reason could not get merged through the respective
subsystem maintainer tree.
Most of the new code is for the Keystone Navigator driver, which is
new base support that is going to be needed for their hardware
accelerated network driver and other units.
Most of the commits are for moving old code around from at91 and omap
for things that are done in device drivers nowadays.
- at91: move reset, poweroff, memory and clocksource code into drivers
directories
- socfpga: add edac driver (through arm-soc, as requested by Boris)
- omap: move omap-intc code to drivers/irqchip
- sunxi: added an RTC driver for sun6i
- omap: mailbox driver related changes
- keystone: support for the "Navigator" component
- versatile: new reboot, led and soc drivers
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Merge tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Arnd Bergmann:
"These are changes for drivers that are intimately tied to some SoC and
for some reason could not get merged through the respective subsystem
maintainer tree.
Most of the new code is for the Keystone Navigator driver, which is
new base support that is going to be needed for their hardware
accelerated network driver and other units.
Most of the commits are for moving old code around from at91 and omap
for things that are done in device drivers nowadays.
- at91: move reset, poweroff, memory and clocksource code into
drivers directories
- socfpga: add edac driver (through arm-soc, as requested by Boris)
- omap: move omap-intc code to drivers/irqchip
- sunxi: added an RTC driver for sun6i
- omap: mailbox driver related changes
- keystone: support for the "Navigator" component
- versatile: new reboot, led and soc drivers"
* tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (92 commits)
bus: arm-ccn: Fix spurious warning message
leds: add device tree bindings for register bit LEDs
soc: add driver for the ARM RealView
power: reset: driver for the Versatile syscon reboot
leds: add a driver for syscon-based LEDs
drivers/soc: ti: fix build break with modules
MAINTAINERS: Add Keystone Multicore Navigator drivers entry
soc: ti: add Keystone Navigator DMA support
Documentation: dt: soc: add Keystone Navigator DMA bindings
soc: ti: add Keystone Navigator QMSS driver
Documentation: dt: soc: add Keystone Navigator QMSS bindings
rtc: sunxi: Depend on platforms sun4i/sun7i that actually have the rtc
rtc: sun6i: Add sun6i RTC driver
irqchip: omap-intc: remove unnecessary comments
irqchip: omap-intc: correct maximum number or MIR registers
irqchip: omap-intc: enable TURBO idle mode
irqchip: omap-intc: enable IP protection
irqchip: omap-intc: remove unnecesary of_address_to_resource() call
irqchip: omap-intc: comment style cleanup
irqchip: omap-intc: minor improvement to omap_irq_pending()
...
