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  1. 03 Jun, 2013 1 commit
  3. 25 Feb, 2013 1 commit
    • Mauro Carvalho Chehab's avatar
      ghes_edac: Register at EDAC core the BIOS report · 77c5f5d2
      Mauro Carvalho Chehab authored 
      
Register GHES at EDAC MC core, in order to avoid other
drivers to also handle errors and mangle with error data.

The edac core will warrant that just one driver will be used,
so the first one to register (BIOS first) will be the one that
will be reporting the hardware errors.

For now, the EDAC driver does nothing but to register at the
EDAC core, preventing the hardware-driven mechanism to
interfere with GHES.
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
      77c5f5d2
  5. 17 Jan, 2013 1 commit
  7. 07 Jan, 2013 1 commit
    • Borislav Petkov's avatar
      EDAC: Fix EDAC Kconfig menu · 54451663
      Borislav Petkov authored 
      After f65aad41

("MIPS: Cavium: Add EDAC support."), when entering
the "Device Drivers" toplevel menu in menuconfig, the suboptions behind
EDAC appeared merged with the rest of the device drivers types. This was
because the menuconfig option EDAC is querying an EDAC_SUPPORT Kconfig
bool which was defined after the menu definition.

When pushing EDAC_SUPPORT up, before the menu definition, the variable
is defined earlier and the above menuconfig artifact doesn't happen.

Drop a useless menuconfig comment while at it.

Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: default avatarBorislav Petkov <bp@alien8.de>
      54451663
  9. 12 Dec, 2012 1 commit
    • Ralf Baechle's avatar
      MIPS: Cavium: Add EDAC support. · f65aad41
      Ralf Baechle authored 
      
Drivers for EDAC on Cavium.  Supported subsystems are:

 o CPU primary caches.  These are parity protected only, so only error
   reporting.
 o Second level cache - ECC protected, provides SECDED.
 o Memory: ECC / SECDEC if used with suitable DRAM modules.  The driver will
   will only initialize if ECC is enabled on a system so is safe to run on
   non-ECC memory.
 o PCI: Parity error reporting

Since it is very hard to test this sort of code the implementation is very
conservative and uses polling where possible for now.
Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
Reviewed-by: default avatarBorislav Petkov <borislav.petkov@amd.com>
      f65aad41
  11. 28 Nov, 2012 1 commit
  13. 27 Jun, 2012 2 commits
  15. 11 Jun, 2012 1 commit
    • Mauro Carvalho Chehab's avatar
      edac: add a new per-dimm API and make the old per-virtual-rank API obsolete · 19974710
      Mauro Carvalho Chehab authored 
      
The old EDAC API is broken. It only works fine for systems manufatured
before 2005 and for AMD 64. The reason is that it forces all memory
controller drivers to discover rank info.

Also, it doesn't allow grouping the several ranks into a DIMM.

So, what almost all modern drivers do is to create a fake virtual-rank
information, and use it to cheat the EDAC core to accept the driver.

While this works if the user has enough time to discover what DIMM slot
corresponds to each "virtual-rank" information, it prevents EDAC usage
for users with less available time. It also makes life hard for vendors
that may want to provide a table with their motherboards to the userspace
tool (edac-utils) as each driver has its own logic for the virtual
mapping.

So, the old API should be removed, in favor of a more flexible API that
allows newer drivers to not lie to the EDAC core.
Reviewed-by: default avatarAristeu Rozanski <arozansk@redhat.com>
Cc: Doug Thompson <norsk5@yahoo.com>
Cc: Borislav Petkov <borislav.petkov@amd.com>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Cc: Josh Boyer <jwboyer@redhat.com>
Cc: Hui Wang <jason77.wang@gmail.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
      19974710
  17. 21 Mar, 2012 2 commits
  19. 03 Nov, 2011 1 commit
  21. 01 Nov, 2011 4 commits
  23. 11 Aug, 2011 1 commit
  25. 10 Aug, 2011 1 commit
  27. 31 Mar, 2011 1 commit
  29. 10 Mar, 2011 1 commit
  31. 07 Jan, 2011 1 commit
  33. 21 Oct, 2010 1 commit
    • Borislav Petkov's avatar
      EDAC, MCE: Rework MCE injection · 9cdeb404
      Borislav Petkov authored 
      
Add sysfs injection facilities for testing of the MCE decoding code.
Remove large parts of amd64_edac_dbg.c, as a result, which did only
NB MCE injection anyway and the new injection code supports that
functionality already.

Add an injection module so that MCE decoding code in production kernels
like those in RHEL and SLES can be tested.
Signed-off-by: default avatarBorislav Petkov <borislav.petkov@amd.com>
      9cdeb404
  35. 20 Sep, 2010 1 commit
  37. 30 Aug, 2010 1 commit
  39. 03 Aug, 2010 1 commit
  41. 20 Jul, 2010 1 commit
  43. 10 May, 2010 3 commits
  45. 02 Oct, 2009 1 commit
    • Borislav Petkov's avatar
      x86: EDAC: carve out AMD MCE decoding logic · 0d18b2e3
      Borislav Petkov authored 
      
This converts the MCE decoding logic into a standalone config
option which can be built-in or a module, the first one being the
default for MCEs happening early on in the boot process.

This, beyond being separated in a cleaner way, also saves RAM by
making the decoding logic modular.
Signed-off-by: default avatarBorislav Petkov <borislav.petkov@amd.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andi Kleen <andi@firstfloor.org>
LKML-Reference: <20091002133148.GD28682@aftab>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      0d18b2e3
  47. 24 Sep, 2009 2 commits
  49. 16 Sep, 2009 1 commit
    • Ingo Molnar's avatar
      amd64_edac: build driver only on AMD hardware · b9183f9b
      Ingo Molnar authored 
      
-tip testing found the following build failure (config attached):

drivers/built-in.o: In function `amd64_check':
amd64_edac.c:(.text+0x3e9491): undefined reference to `amd_decode_nb_mce'
drivers/built-in.o: In function `amd64_init_2nd_stage':
amd64_edac.c:(.text+0x3e9b46): undefined reference to `amd_report_gart_errors'
amd64_edac.c:(.text+0x3e9b55): undefined reference to `amd_register_ecc_decoder'
drivers/built-in.o: In function `amd64_nbea_store':
amd64_edac_dbg.c:(.text+0x3ea22e): undefined reference to `amd_decode_nb_mce'
drivers/built-in.o: In function `amd64_remove_one_instance':
amd64_edac.c:(.devexit.text+0x3eea): undefined reference to `amd_report_gart_errors'
amd64_edac.c:(.devexit.text+0x3ef6): undefined reference to `amd_unregister_ecc_decoder'

the AMD EDAC code has a dependency on CONFIG_CPU_SUP_AMD facilities. The
patch below solves the problem here.
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarBorislav Petkov <borislav.petkov@amd.com>
      b9183f9b
  51. 18 Jun, 2009 2 commits
  53. 10 Jun, 2009 3 commits
  55. 29 May, 2009 1 commit
  57. 03 Apr, 2009 1 commit
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