951 Commits

Author SHA1 Message Date
Jean Delvare
d8c2a97e20 i7300_edac: Fix device reference count
commit 75135da0d68419ef8a925f4c1d5f63d8046e314d upstream.

pci_get_device() decrements the reference count of "from" (last
argument) so when we break off the loop successfully we have only one
device reference - and we don't know which device we have. If we want
a reference to each device, we must take them explicitly and let
the pci_get_device() walk complete to avoid duplicate references.

This is serious, as over-putting device references will cause
the device to eventually disappear. Without this fix, the kernel
crashes after a few insmod/rmmod cycles.

Tested on an Intel S7000FC4UR system with a 7300 chipset.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Link: http://lkml.kernel.org/r/20140224111656.09bbb7ed@endymion.delvare
Cc: Mauro Carvalho Chehab <m.chehab@samsung.com>
Cc: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-06 22:06:29 -08:00
Jean Delvare
d370afc93d i7core_edac: Fix PCI device reference count
commit c0f5eeed0f4cef4f05b74883a7160e7edde58b6a upstream.

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

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

This fixes kernel bug #50491:
https://bugzilla.kernel.org/show_bug.cgi?id=50491

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Link: http://lkml.kernel.org/r/20140224093927.7659dd9d@endymion.delvare
Reviewed-by: Alan Cox <alan@linux.intel.com>
Cc: Mauro Carvalho Chehab <m.chehab@samsung.com>
Cc: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-06 22:06:23 -08:00
Borislav Petkov
c9948e7cbd EDAC: Correct workqueue setup path
commit cb6ef42e516cb8948f15e4b70dc03af8020050a2 upstream.

We're using edac_mc_workq_setup() both on the init path, when
we load an edac driver and when we change the polling period
(edac_mc_reset_delay_period) through /sys/.../edac_mc_poll_msec.

On that second path we don't need to init the workqueue which has been
initialized already.

Thanks to Tejun for workqueue insights.

Signed-off-by: Borislav Petkov <bp@suse.de>
Link: http://lkml.kernel.org/r/1391457913-881-1-git-send-email-prarit@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-22 13:35:00 -08:00
Borislav Petkov
096a9cf957 EDAC: Poll timeout cannot be zero, p2
commit 9da21b1509d8aa7ab4846722817d16c72d656c91 upstream.

Sanitize code even more to accept unsigned longs only and to not allow
polling intervals below 1 second as this is unnecessary and doesn't make
much sense anyway for polling errors.

Signed-off-by: Borislav Petkov <bp@suse.de>
Link: http://lkml.kernel.org/r/1391457913-881-1-git-send-email-prarit@redhat.com
Cc: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-22 13:35:00 -08:00
Prarit Bhargava
33cd95fbe3 drivers/edac/edac_mc_sysfs.c: poll timeout cannot be zero
commit 79040cad3f8235937e229f1b9401ba36dd5ad69b upstream.

If you do

  echo 0 > /sys/module/edac_core/parameters/edac_mc_poll_msec

the following stack trace is output because the edac module is not
designed to poll with a timeout of zero.

  WARNING: CPU: 12 PID: 0 at lib/list_debug.c:33 __list_add+0xac/0xc0()
  list_add corruption. prev->next should be next (ffff8808291dd1b8), but was           (null). (prev=ffff8808286fe3f8).
  Modules linked in: sg nfsv3 rpcsec_gss_krb5 nfsv4 dns_resolver nfs fscache cfg80211 rfkill x86_pkg_temp_thermal coretemp kvm_intel kvm ixgbe e1000e crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper cryptd iTCO_wdt ptp sb_edac iTCO_vendor_support pps_core mdio ipmi_devintf edac_core ioatdma microcode shpchp lpc_ich pcspkr i2c_i801 dca mfd_core ipmi_si wmi ipmi_msghandler nfsd auth_rpcgss nfs_acl lockd sunrpc xfs libcrc32c sd_mod sr_mod cdrom crc_t10dif crct10dif_common mgag200 syscopyarea sysfillrect sysimgblt isci i2c_algo_bit drm_kms_helper ttm drm libsas ahci libahci scsi_transport_sas libata i2c_core dm_mirror dm_region_hash dm_log dm_mod
  CPU: 12 PID: 0 Comm: swapper/12 Not tainted 3.13.0+ #1
  Hardware name: Intel Corporation LH Pass ........../SVRBD-ROW_T, BIOS SE5C600.86B.01.08.0003.022620131521 02/26/2013
  Call Trace:
   <IRQ>
    __list_add+0xac/0xc0
    __internal_add_timer+0xab/0x130
    internal_add_timer+0x17/0x40
    mod_timer_pinned+0xca/0x170
    intel_pstate_timer_func+0x28a/0x380
    call_timer_fn+0x36/0x100
    run_timer_softirq+0x1ff/0x2f0
    __do_softirq+0xf5/0x2e0
    irq_exit+0x10d/0x120
    smp_apic_timer_interrupt+0x45/0x60
    apic_timer_interrupt+0x6d/0x80
   <EOI>
    cpuidle_idle_call+0xb9/0x1f0
    arch_cpu_idle+0xe/0x30
    cpu_startup_entry+0x9e/0x240
    start_secondary+0x1e4/0x290

  kernel BUG at kernel/timer.c:1084!
  invalid opcode: 0000 [#1] SMP
  Modules linked in: sg nfsv3 rpcsec_gss_krb5 nfsv4 dns_resolver nfs fscache cfg80211 rfkill x86_pkg_temp_thermal coretemp kvm_intel kvm ixgbe e1000e crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper cryptd iTCO_wdt ptp sb_edac iTCO_vendor_support pps_core mdio ipmi_devintf edac_core ioatdma microcode shpchp lpc_ich pcspkr i2c_i801 dca mfd_core ipmi_si wmi ipmi_msghandler nfsd auth_rpcgss nfs_acl lockd sunrpc xfs libcrc32c sd_mod sr_mod cdrom crc_t10dif crct10dif_common mgag200 syscopyarea sysfillrect sysimgblt isci i2c_algo_bit drm_kms_helper ttm drm libsas ahci libahci scsi_transport_sas libata i2c_core dm_mirror dm_region_hash dm_log dm_mod
  CPU: 12 PID: 0 Comm: swapper/12 Tainted: G        W    3.13.0+ #1
  Hardware name: Intel Corporation LH Pass ........../SVRBD-ROW_T, BIOS SE5C600.86B.01.08.0003.022620131521 02/26/2013
  Call Trace:
   <IRQ>
    run_timer_softirq+0x245/0x2f0
    __do_softirq+0xf5/0x2e0
    irq_exit+0x10d/0x120
    smp_apic_timer_interrupt+0x45/0x60
    apic_timer_interrupt+0x6d/0x80
   <EOI>
    cpuidle_idle_call+0xb9/0x1f0
    arch_cpu_idle+0xe/0x30
    cpu_startup_entry+0x9e/0x240
    start_secondary+0x1e4/0x290
  RIP   cascade+0x93/0xa0

  WARNING: CPU: 36 PID: 1154 at kernel/workqueue.c:1461 __queue_delayed_work+0xed/0x1a0()
  Modules linked in: sg nfsv3 rpcsec_gss_krb5 nfsv4 dns_resolver nfs fscache cfg80211 rfkill x86_pkg_temp_thermal coretemp kvm_intel kvm ixgbe e1000e crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper cryptd iTCO_wdt ptp sb_edac iTCO_vendor_support pps_core mdio ipmi_devintf edac_core ioatdma microcode shpchp lpc_ich pcspkr i2c_i801 dca mfd_core ipmi_si wmi ipmi_msghandler nfsd auth_rpcgss nfs_acl lockd sunrpc xfs libcrc32c sd_mod sr_mod cdrom crc_t10dif crct10dif_common mgag200 syscopyarea sysfillrect sysimgblt isci i2c_algo_bit drm_kms_helper ttm drm libsas ahci libahci scsi_transport_sas libata i2c_core dm_mirror dm_region_hash dm_log dm_mod
  CPU: 36 PID: 1154 Comm: kworker/u481:3 Tainted: G        W    3.13.0+ #1
  Hardware name: Intel Corporation LH Pass ........../SVRBD-ROW_T, BIOS SE5C600.86B.01.08.0003.022620131521 02/26/2013
  Workqueue: edac-poller edac_mc_workq_function [edac_core]
  Call Trace:
    dump_stack+0x45/0x56
    warn_slowpath_common+0x7d/0xa0
    warn_slowpath_null+0x1a/0x20
    __queue_delayed_work+0xed/0x1a0
    queue_delayed_work_on+0x27/0x50
    edac_mc_workq_function+0x72/0xa0 [edac_core]
    process_one_work+0x17b/0x460
    worker_thread+0x11b/0x400
    kthread+0xd2/0xf0
    ret_from_fork+0x7c/0xb0

This patch adds a range check in the edac_mc_poll_msec code to check for 0.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Cc: Doug Thompson <dougthompson@xmission.com>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-22 13:35:00 -08:00
Aristeu Rozanski
4a466742d2 e752x_edac: Fix pci_dev usage count
commit 90ed4988b8c030d65b41b7d13140e9376dc6ec5a upstream.

In case the device 0, function 1 is not found using pci_get_device(),
pci_scan_single_device() will be used but, differently than
pci_get_device(), it allocates a pci_dev but doesn't does bump the usage
count on the pci_dev and after few module removals and loads the pci_dev
will be freed.

Signed-off-by: Aristeu Rozanski <aris@redhat.com>
Reviewed-by: mark gross <mark.gross@intel.com>
Link: http://lkml.kernel.org/r/20131205153755.GL4545@redhat.com
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-06 11:33:50 -08:00
Aristeu Rozanski
bd4b968362 sb_edac: Shut up compiler warning when EDAC_DEBUG is enabled
Fix this:

In file included from drivers/edac/sb_edac.c:27:0:
drivers/edac/sb_edac.c: In function ‘sbridge_mce_output_error’:
drivers/edac/edac_core.h:50:8: warning: ‘limit’ may be used uninitialized in this function [-Wmaybe-uninitialized]
  printk(level "EDAC " prefix ": " fmt, ##arg)
        ^
drivers/edac/sb_edac.c:948:25: note: ‘limit’ was declared here
  u64   ch_addr, offset, limit, prv = 0;

Limit can be initialized to 0. The only way limit wouldn't be
initialized is if there are no DIMMs present (which would be a bug of
course) and it'd fail on the next test.

Signed-off-by: Aristeu Rozanski <arozansk@redhat.com>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Link: http://lkml.kernel.org/r/20131121122021.GD26009@pd.tnic
Signed-off-by: Borislav Petkov <bp@suse.de>
2013-11-30 12:26:36 +01:00
Linus Torvalds
cdd278db0e Merge branch 'linux_next' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac
Pull EDAC driver updates from Mauro Carvalho Chehab:
 - sb_edac: add support for Ivy Bridge support
 - cell_edac: add a missing of_node_put() call

* 'linux_next' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac:
  cell_edac: fix missing of_node_put
  sb_edac: add support for Ivy Bridge
  sb_edac: avoid decoding the same error multiple times
  sb_edac: rename mci_bind_devs()
  sb_edac: enable multiple PCI id tables to be used
  sb_edac: rework sad_pkg
  sb_edac: allow different interleave lists
  sb_edac: allow different dram_rule arrays
  sb_edac: isolate TOHM retrieval
  sb_edac: rename pci_br
  sb_edac: isolate TOLM retrieval
  sb_edac: make RANK_CFG_A value part of sbridge_info
2013-11-18 14:51:52 -08:00
Linus Torvalds
794e96e8ec EDAC updates for 3.13
Highlights:
 
 * Support for Calxeda ECX-2000 memory controller, from Robert Richter
 
 * Misc Calxeda Highbank drivers and EDAC core cleanups, from Rob Herring
   and Robert Richter
 
 * New maintainer for Freescale's MPC85xx EDAC driver: Johannes Thumshirn
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Merge tag 'edac_for_3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp

Pull EDAC updates from Borislav Petkov:
 "Following up on last week's discussion, here's my part of the EDAC
  pile, highlights in the signed tag.

  The last two patches have a date from just now because I've just
  applied them to the tree after Johannes sent them to me earlier.  I
  decided to forward them now because they're trivial.

  There's a third one for MPC85xx which adds PCIe error interrupt
  support but since it is not so trivial and hasn't seen any linux-next
  time, I'm deferring it to 3.14

  EDAC update highlights:
   - Support for Calxeda ECX-2000 memory controller, from Robert Richter
   - Misc Calxeda Highbank drivers and EDAC core cleanups, from Rob
     Herring and Robert Richter
   - New maintainer for Freescale's MPC85xx EDAC driver: Johannes
     Thumshirn"

* tag 'edac_for_3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
  edac/85xx: Remove mpc85xx_pci_err_remove
  EDAC: Add edac-mpc85xx driver to MAINTAINERS
  edac, highbank: Moving error injection to sysfs for edac
  edac, highbank: Add MAINTAINERS entry
  edac: Unify reporting of device info for device, mc and pci
  edac, highbank: Improve and unify naming
  edac, highbank: Add Calxeda ECX-2000 support
  ARM: dts: calxeda: move memory-controller node out of ecx-common.dtsi
  edac, highbank: Fix interrupt setup of mem and l2 controller
2013-11-18 14:50:17 -08:00
Johannes Thumshirn
0f1741c74a edac/85xx: Remove mpc85xx_pci_err_remove
Remove mpc85xx_pci_err_remove(...) which is obsolete, this removes the
compiler warning which can be seen when building the driver either
statically or as a module.

Signed-off-by: Johannes Thumshirn <morbidrsa@gmail.com>
Link: https://lkml.kernel.org/r/20131112161901.GA15637@jtlinux
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@men.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
2013-11-17 20:05:50 +01:00
Libo Chen
3e45588825 cell_edac: fix missing of_node_put
Decrease device_node refcount np after task completion.

Signed-off-by: Libo Chen <libo.chen@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-11-14 17:13:43 -02:00
Aristeu Rozanski
4d715a805b sb_edac: add support for Ivy Bridge
Since Ivy Bridge memory controller is very similar to Sandy Bridge, it's
wiser to modify sb_edac to support both instead of creating another
driver.

[m.chehab@samsung.com: Fix CodingStyle]
Signed-off-by: Aristeu Rozanski <arozansk@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-11-14 17:13:22 -02:00
Aristeu Rozanski
be3036d220 sb_edac: avoid decoding the same error multiple times
Whenever the extended error reporting is active, multiple MCEs will be
generated for the same event, which will lead to multiple repeated
errors to be reported. So check ADDRV and only decode the error if the
MCE address is valid.

Signed-off-by: Aristeu Rozanski <arozansk@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-11-14 16:50:03 -02:00
Aristeu Rozanski
ea779b5a09 sb_edac: rename mci_bind_devs()
This is in preparation for Ivy Bridge support

Signed-off-by: Aristeu Rozanski <arozansk@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-11-14 16:49:47 -02:00
Aristeu Rozanski
5153a0f94c sb_edac: enable multiple PCI id tables to be used
This is needed to allow separated PCI id tables for Sandy Bridge and Ivy
Bridge.

Signed-off-by: Aristeu Rozanski <arozansk@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-11-14 16:49:27 -02:00
Aristeu Rozanski
cc311991a7 sb_edac: rework sad_pkg
This is in preparation for Ivy Bridge support

Signed-off-by: Aristeu Rozanski <arozansk@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-11-14 16:49:04 -02:00
Aristeu Rozanski
ef1ce51e7b sb_edac: allow different interleave lists
This is in preparation for Ivy Bridge support

Signed-off-by: Aristeu Rozanski <arozansk@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-11-14 16:48:42 -02:00
Aristeu Rozanski
464f1d829a sb_edac: allow different dram_rule arrays
This is in preparation for Ivy Bridge support

Signed-off-by: Aristeu Rozanski <arozansk@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-11-14 16:48:16 -02:00
Aristeu Rozanski
8fd6a43ac9 sb_edac: isolate TOHM retrieval
This is preparation of Ivy Bridge support.

Signed-off-by: Aristeu Rozanski <arozansk@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-11-14 16:43:17 -02:00
Aristeu Rozanski
5f8a1b8a7b sb_edac: rename pci_br
Ivy Bridge has more than one, so rename pci_br to pci_br0

Signed-off-by: Aristeu Rozanski <arozansk@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-11-14 16:43:06 -02:00
Aristeu Rozanski
fb79a50926 sb_edac: isolate TOLM retrieval
This is in preparation for the Ivy Bridge support.

Signed-off-by: Aristeu Rozanski <arozansk@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-11-14 16:25:27 -02:00
Aristeu Rozanski
ef1e8d03b1 sb_edac: make RANK_CFG_A value part of sbridge_info
This is in preparation of Ivy Bridge support.

Signed-off-by: Aristeu Rozanski <arozansk@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-11-14 16:20:37 -02:00
Linus Torvalds
10d0c9705e DeviceTree updates for 3.13. This is a bit larger pull request than
usual for this cycle with lots of clean-up.
 
 - Cross arch clean-up and consolidation of early DT scanning code.
 - Clean-up and removal of arch prom.h headers. Makes arch specific
   prom.h optional on all but Sparc.
 - Addition of interrupts-extended property for devices connected to
   multiple interrupt controllers.
 - Refactoring of DT interrupt parsing code in preparation for deferred
   probe of interrupts.
 - ARM cpu and cpu topology bindings documentation.
 - Various DT vendor binding documentation updates.
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Merge tag 'devicetree-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree updates from Rob Herring:
 "DeviceTree updates for 3.13.  This is a bit larger pull request than
  usual for this cycle with lots of clean-up.

   - Cross arch clean-up and consolidation of early DT scanning code.
   - Clean-up and removal of arch prom.h headers.  Makes arch specific
     prom.h optional on all but Sparc.
   - Addition of interrupts-extended property for devices connected to
     multiple interrupt controllers.
   - Refactoring of DT interrupt parsing code in preparation for
     deferred probe of interrupts.
   - ARM cpu and cpu topology bindings documentation.
   - Various DT vendor binding documentation updates"

* tag 'devicetree-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (82 commits)
  powerpc: add missing explicit OF includes for ppc
  dt/irq: add empty of_irq_count for !OF_IRQ
  dt: disable self-tests for !OF_IRQ
  of: irq: Fix interrupt-map entry matching
  MIPS: Netlogic: replace early_init_devtree() call
  of: Add Panasonic Corporation vendor prefix
  of: Add Chunghwa Picture Tubes Ltd. vendor prefix
  of: Add AU Optronics Corporation vendor prefix
  of/irq: Fix potential buffer overflow
  of/irq: Fix bug in interrupt parsing refactor.
  of: set dma_mask to point to coherent_dma_mask
  of: add vendor prefix for PHYTEC Messtechnik GmbH
  DT: sort vendor-prefixes.txt
  of: Add vendor prefix for Cadence
  of: Add empty for_each_available_child_of_node() macro definition
  arm/versatile: Fix versatile irq specifications.
  of/irq: create interrupts-extended property
  microblaze/pci: Drop PowerPC-ism from irq parsing
  of/irq: Create of_irq_parse_and_map_pci() to consolidate arch code.
  of/irq: Use irq_of_parse_and_map()
  ...
2013-11-12 16:52:17 +09:00
Robert Richter
78cfbf0bbf edac, highbank: Moving error injection to sysfs for edac
Always have the error injection i/f available, even if there is no
debugfs or EDAC_DEBUG enabled. We need this for testing production
kernels and environments.

Thus, the entry moves from:

 /sys/kernel/debug/edac/mc0/inject_ctrl

to:

 /sys/devices/system/edac/mc/mc0/inject_ctrl

No other changes of the interface.

Signed-off-by: Robert Richter <robert.richter@linaro.org>
Signed-off-by: Robert Richter <rric@kernel.org>
2013-11-04 17:01:11 -06:00
Robert Richter
7270a6085a edac: Unify reporting of device info for device, mc and pci
Log messages slightly differ between edac subsystems. Unifying it.

Signed-off-by: Robert Richter <robert.richter@linaro.org>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Robert Richter <rric@kernel.org>
2013-11-04 17:01:09 -06:00
Robert Richter
41ec0e8da0 edac, highbank: Improve and unify naming
Assinging correct names of the 'hb_mc_edac' and 'hb_l2_edac' edac
modules for module, controller and device. Reported values for
Highbank in dmesg are now:

 EDAC MC0: Giving out device to module hb_mc_edac controller
 calxeda,hb-ddr-ctrl: DEV fff00000.memory-controller (INTERRUPT)

 EDAC DEVICE0: Giving out device to module hb_l2_edac controller
 calxeda,hb-sregs-l2-ecc: DEV fff3c200.sregs (INTERRUPT)

Signed-off-by: Robert Richter <robert.richter@linaro.org>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Robert Richter <rric@kernel.org>
2013-11-04 17:01:07 -06:00
Robert Richter
0ec8579e16 edac, highbank: Add Calxeda ECX-2000 support
Implement edac support for Calxeda ECX-2000.

The ECX-2000 memory controller is similar to Highbank but has
different register bases for error and interrupt registers. There is
an own device tree name "calxeda,ecx-2000-ddr-ctrl" for identification
and initialization of the ECX-2000 and its base addresses.

Signed-off-by: Robert Richter <robert.richter@linaro.org>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Robert Richter <rric@kernel.org>
2013-11-04 17:01:06 -06:00
Robert Richter
a72b8859fd edac, highbank: Fix interrupt setup of mem and l2 controller
Register and enable interrupts after the edac registration. Otherwise
incomming ecc error interrupts lead to crashes during device setup.

Fixing this in drivers for mc and l2.

Signed-off-by: Robert Richter <robert.richter@linaro.org>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Cc: stable <stable@vger.kernel.org>     # 3.6+
Signed-off-by: Robert Richter <rric@kernel.org>
2013-11-04 15:43:18 -06:00
Chen, Gong
56507694de EDAC, GHES: Update ghes error record info
In latest UEFI spec(by now it's 2.4) there are some new
fields for memory error reporting. Add these new fields for
ghes_edac interface.

Signed-off-by: Chen, Gong <gong.chen@linux.intel.com>
Cc: Mauro Carvalho Chehab <m.chehab@samsung.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2013-10-23 10:11:00 -07:00
Chen, Gong
147de14772 ACPI, APEI, CPER: Add UEFI 2.4 support for memory error
In latest UEFI spec(by now it is 2.4) memory error definition
for CPER (UEFI 2.4 Appendix N Common Platform Error Record)
adds some new fields. These fields help people to locate
memory error to an actual DIMM location.

Original-author: Tony Luck <tony.luck@intel.com>
Signed-off-by: Chen, Gong <gong.chen@linux.intel.com>
Reviewed-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Acked-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2013-10-23 10:10:20 -07:00
Chen, Gong
10ef6b0dff bitops: Introduce a more generic BITMASK macro
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>
2013-10-21 15:12:01 -07:00
Rob Herring
5af5073004 drivers: clean-up prom.h implicit includes
Powerpc is a mess of implicit includes by prom.h. Add the necessary
explicit includes to drivers in preparation of prom.h cleanup.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
2013-10-09 20:04:04 -05:00
Linus Torvalds
4de9ad9bc0 Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
Pull Tile arch updates from Chris Metcalf:
 "These changes bring in a bunch of new functionality that has been
  maintained internally at Tilera over the last year, plus other stray
  bits of work that I've taken into the tile tree from other folks.

  The changes include some PCI root complex work, interrupt-driven
  console support, support for performing fast-path unaligned data
  fixups by kernel-based JIT code generation, CONFIG_PREEMPT support,
  vDSO support for gettimeofday(), a serial driver for the tilegx
  on-chip UART, KGDB support, more optimized string routines, support
  for ftrace and kprobes, improved ASLR, and many bug fixes.

  We also remove support for the old TILE64 chip, which is no longer
  buildable"

* git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile: (85 commits)
  tile: refresh tile defconfig files
  tile: rework <asm/cmpxchg.h>
  tile PCI RC: make default consistent DMA mask 32-bit
  tile: add null check for kzalloc in tile/kernel/setup.c
  tile: make __write_once a synonym for __read_mostly
  tile: remove support for TILE64
  tile: use asm-generic/bitops/builtin-*.h
  tile: eliminate no-op "noatomichash" boot argument
  tile: use standard tile_bundle_bits type in traps.c
  tile: simplify code referencing hypervisor API addresses
  tile: change <asm/system.h> to <asm/switch_to.h> in comments
  tile: mark pcibios_init() as __init
  tile: check for correct compiler earlier in asm-offsets.c
  tile: use standard 'generic-y' model for <asm/hw_irq.h>
  tile: use asm-generic version of <asm/local64.h>
  tile PCI RC: add comment about "PCI hole" problem
  tile: remove DEBUG_EXTRA_FLAGS kernel config option
  tile: add virt_to_kpte() API and clean up and document behavior
  tile: support FRAME_POINTER
  tile: support reporting Tilera hypervisor statistics
  ...
2013-09-06 11:14:33 -07:00
Aravind Gopalakrishnan
4fc06b3171 amd64_edac: Fix incorrect wraparounds
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>
2013-08-27 15:00:22 +02:00
Borislav Petkov
3f0aba4fc0 amd64_edac: Correct erratum 505 range
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>
2013-08-27 14:25:08 +02:00
Ingo Molnar
c874b6ba55 An amd64_edac fix for single channel configurations + trivial cleanups
courtesy of Jingoo Han.
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Merge tag 'edac_for_3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp into x86/ras

Pull RAS/EDAC updates from Boris Petkov:

 "An amd64_edac fix for single channel configurations + trivial cleanups
  courtesy of Jingoo Han."

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-08-15 10:07:20 +02:00
Jingoo Han
75a9551f2b cpc925_edac: Use proper array termination
The struct should be terminated by using empty braces in order to
fix the following sparse warning.

drivers/edac/cpc925_edac.c:792:10: warning: Using plain integer as NULL pointer

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
[ drop obvious comment ]
Signed-off-by: Borislav Petkov <bp@suse.de>
2013-08-14 12:46:46 +02:00
Borislav Petkov
a4b4bedce8 amd64_edac: Get rid of boot_cpu_data accesses
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>
2013-08-12 16:01:56 +02:00
Aravind Gopalakrishnan
18b94f66f9 amd64_edac: Add ECC decoding support for newer F15h models
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>
2013-08-12 16:00:10 +02:00
Jingoo Han
e0d391ab04 x38_edac: Make a local function static
Make a local function static in order to fix the following sparse
warning:

drivers/edac/x38_edac.c:252:14: warning: symbol 'x38_map_mchbar' was not declared. Should it be static?

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
[ Boris: Correct commit message ]
Signed-off-by: Borislav Petkov <bp@suse.de>
2013-08-09 15:29:10 +02:00
Jingoo Han
166e9334e9 i3200_edac: Make a local function static
This local symbol is used only in this file.
Fix the following sparse warnings:

drivers/edac/i3200_edac.c:264:14: warning: symbol 'i3200_map_mchbar' was not declared. Should it be static?

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
2013-08-09 15:23:02 +02:00
Borislav Petkov
f0a56c4801 amd64_edac: Fix single-channel setups
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>
2013-07-29 17:22:41 +02:00
Jingoo Han
c542b53da9 EDAC: Replace strict_strtol() with kstrtol()
The usage of strict_strtol() is not preferred, because strict_strtol()
is obsolete. Thus, kstrtol() should be used.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
2013-07-24 09:30:03 +02:00
Borislav Petkov
88d84ac973 EDAC: Fix lockdep splat
Fix the following:

BUG: key ffff88043bdd0330 not in .data!
------------[ cut here ]------------
WARNING: at kernel/lockdep.c:2987 lockdep_init_map+0x565/0x5a0()
DEBUG_LOCKS_WARN_ON(1)
Modules linked in: glue_helper sb_edac(+) edac_core snd acpi_cpufreq lrw gf128mul ablk_helper iTCO_wdt evdev i2c_i801 dcdbas button cryptd pcspkr iTCO_vendor_support usb_common lpc_ich mfd_core soundcore mperf processor microcode
CPU: 2 PID: 599 Comm: modprobe Not tainted 3.10.0 #1
Hardware name: Dell Inc. Precision T3600/0PTTT9, BIOS A08 01/24/2013
 0000000000000009 ffff880439a1d920 ffffffff8160a9a9 ffff880439a1d958
 ffffffff8103d9e0 ffff88043af4a510 ffffffff81a16e11 0000000000000000
 ffff88043bdd0330 0000000000000000 ffff880439a1d9b8 ffffffff8103dacc
Call Trace:
  dump_stack
  warn_slowpath_common
  warn_slowpath_fmt
  lockdep_init_map
  ? trace_hardirqs_on_caller
  ? trace_hardirqs_on
  debug_mutex_init
  __mutex_init
  bus_register
  edac_create_sysfs_mci_device
  edac_mc_add_mc
  sbridge_probe
  pci_device_probe
  driver_probe_device
  __driver_attach
  ? driver_probe_device
  bus_for_each_dev
  driver_attach
  bus_add_driver
  driver_register
  __pci_register_driver
  ? 0xffffffffa0010fff
  sbridge_init
  ? 0xffffffffa0010fff
  do_one_initcall
  load_module
  ? unset_module_init_ro_nx
  SyS_init_module
  tracesys
---[ end trace d24a70b0d3ddf733 ]---
EDAC MC0: Giving out device to 'sbridge_edac.c' 'Sandy Bridge Socket#0': DEV 0000:3f:0e.0
EDAC sbridge: Driver loaded.

What happens is that bus_register needs a statically allocated lock_key
because the last is handed in to lockdep. However, struct mem_ctl_info
embeds struct bus_type (the whole struct, not a pointer to it) and the
whole thing gets dynamically allocated.

Fix this by using a statically allocated struct bus_type for the MC bus.

Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: Markus Trippelsdorf <markus@trippelsdorf.de>
Cc: stable@kernel.org # v3.10
Signed-off-by: Tony Luck <tony.luck@intel.com>
2013-07-23 16:01:28 -07:00
Sachin Kamat
8e42e211e4 edac: Remove redundant platform_set_drvdata()
Commit 0998d06310 (device-core: Ensure drvdata = NULL when no
driver is bound) removes the need to set driver data field to
NULL.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
2013-07-17 12:49:55 -04:00
Linus Torvalds
d144746478 Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:
 "MIPS updates:

   - All the things that didn't make 3.10.
   - Removes the Windriver PPMC platform.  Nobody will miss it.
   - Remove a workaround from kernel/irq/irqdomain.c which was there
     exclusivly for MIPS.  Patch by Grant Likely.
   - More small improvments for the SEAD 3 platform
   - Improvments on the BMIPS / SMP support for the BCM63xx series.
   - Various cleanups of dead leftovers.
   - Platform support for the Cavium Octeon-based EdgeRouter Lite.

  Two large KVM patchsets didn't make it for this pull request because
  their respective authors are vacationing"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (124 commits)
  MIPS: Kconfig: Add missing MODULES dependency to VPE_LOADER
  MIPS: BCM63xx: CLK: Add dummy clk_{set,round}_rate() functions
  MIPS: SEAD3: Disable L2 cache on SEAD-3.
  MIPS: BCM63xx: Enable second core SMP on BCM6328 if available
  MIPS: BCM63xx: Add SMP support to prom.c
  MIPS: define write{b,w,l,q}_relaxed
  MIPS: Expose missing pci_io{map,unmap} declarations
  MIPS: Malta: Update GCMP detection.
  Revert "MIPS: make CAC_ADDR and UNCAC_ADDR account for PHYS_OFFSET"
  MIPS: APSP: Remove <asm/kspd.h>
  SSB: Kconfig: Amend SSB_EMBEDDED dependencies
  MIPS: microMIPS: Fix improper definition of ISA exception bit.
  MIPS: Don't try to decode microMIPS branch instructions where they cannot exist.
  MIPS: Declare emulate_load_store_microMIPS as a static function.
  MIPS: Fix typos and cleanup comment
  MIPS: Cleanup indentation and whitespace
  MIPS: BMIPS: support booting from physical CPU other than 0
  MIPS: Only set cpu_has_mmips if SYS_SUPPORTS_MICROMIPS
  MIPS: GIC: Fix gic_set_affinity infinite loop
  MIPS: Don't save/restore OCTEON wide multiplier state on syscalls.
  ...
2013-07-13 14:52:21 -07:00
Linus Torvalds
f3acb96f38 Add MCE signatures for family 0x15, models 30-3f.
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Merge tag 'edac_for_3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp

Pull AMD EDAC update from Borislav Petkov:
 "Add MCE signatures for family 0x15, models 30-3f"

* tag 'edac_for_3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
  EDAC, MCE, AMD: Add an MCE signature for new Fam15h models
  EDAC: Replace strict_strtoul() with kstrtoul()
2013-07-03 13:11:18 -07:00
David Daney
9ddebc46e7 MIPS: OCTEON: Rename Kconfig CAVIUM_OCTEON_REFERENCE_BOARD to CAVIUM_OCTEON_SOC
CAVIUM_OCTEON_SOC most place we used to use CPU_CAVIUM_OCTEON.  This
allows us to CPU_CAVIUM_OCTEON in places where we have no OCTEON SOC.

Remove CAVIUM_OCTEON_SIMULATOR as it doesn't really do anything, we can
get the same configuration with CAVIUM_OCTEON_SOC.

Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Cc: linux-ide@vger.kernel.org
Cc: linux-edac@vger.kernel.org
Cc: linux-i2c@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: spi-devel-general@lists.sourceforge.net
Cc: devel@driverdev.osuosl.org
Cc: linux-usb@vger.kernel.org
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Patchwork: https://patchwork.linux-mips.org/patch/5295/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-10 18:01:25 +02:00
Aravind Gopalakrishnan
aad19e5176 EDAC, MCE, AMD: Add an MCE signature for new Fam15h models
Add a new error signature for Family 15h, models 30h-3fh. Patch has been
tested on Fam15h using mce_amd_inj facility and has been verified to
work correctly.

Signed-off-by: Aravind Gopalakrishnan <aravind.gopalakrishnan@amd.com>
 [ cleanup commit message and error string ]
Signed-off-by: Borislav Petkov <bp@suse.de>
2013-06-08 10:17:03 +02:00
Jingoo Han
c7f62fc87b EDAC: Replace strict_strtoul() with kstrtoul()
The usage of strict_strtoul() is not preferred, because strict_strtoul()
is obsolete. Thus, kstrtoul() should be used.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
2013-06-08 10:16:33 +02:00