linux-stable.git/drivers/edac, branch linux-4.8.y

EDAC, skx_edac: Add EDAC driver for Skylake

2016-08-21T17:58:34+00:00

This is an entirely new driver instead of yet another set of patches
to sb_edac.c because:

1) Mapping from PCI devices to socket/memory controller is significantly
   different. Skylake scatters devices on a socket across a number of
   PCI buses.
2) There is an extra level of interleaving via the "mcroute" register
   that would be a little messy to squeeze into the old driver.
3) Validation is getting too expensive. Changes to sb_edac need to
   be checked against Sandy Bridge, Ivy Bridge, Haswell, Broadwell and
   Knights Landing.

Acked-by: Aristeu Rozanski 
Acked-by: Borislav Petkov 
Signed-off-by: Tony Luck 
Signed-off-by: Linus Torvalds

EDAC, sb_edac: Fix channel reporting on Knights Landing

2016-08-08T03:52:08+00:00

On Intel Xeon Phi Knights Landing processor family the channels of the
memory controller have untypical arrangement - MC0 is mapped to CH3,4,5
and MC1 is mapped to CH0,1,2. This causes the EDAC driver to report the
channel name incorrectly.

We missed this change earlier, so the code already contains similar
comment, but the translation function is incorrect.

Without this patch:
  errors in DIMM_A and DIMM_D were reported in DIMM_D
  errors in DIMM_B and DIMM_E were reported in DIMM_E
  errors in DIMM_C and DIMM_F were reported in DIMM_F

Correct this.

Hubert Chrzaniuk:
 - rebased to 4.8
 - comments and code cleanup

Fixes: d0cdf9003140 ("sb_edac: Add Knights Landing (Xeon Phi gen 2) support")
Reviewed-by: Tony Luck 
Cc: Mauro Carvalho Chehab 
Cc: Hubert Chrzaniuk 
Cc: linux-edac 
Cc: lukasz.anaczkowski@intel.com
Cc: lukasz.odzioba@intel.com
Cc: mchehab@kernel.org
Cc:  # v4.5..
Link: http://lkml.kernel.org/r/1469231089-22837-1-git-send-email-lukasz.odzioba@intel.com
Signed-off-by: Lukasz Odzioba 
[ Boris: Simplify a bit by removing char mc. ]
Signed-off-by: Borislav Petkov

Merge tag 'edac_for_4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp

2016-07-27T20:40:47+00:00

Pull EDAC updates from Borislav Petkov:
 "This last cycle, Thor was busy adding Arria10 eth FIFO support to the
  altera_edac driver along with other improvements.  We have two
  cleanups/fixes too.

  Summary:

   - Altera Arria10 ethernet FIFO buffer support (Thor Thayer)

   - Minor cleanups"

* tag 'edac_for_4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
  ARM: dts: Add Arria10 Ethernet EDAC devicetree entry
  EDAC, altera: Add Arria10 Ethernet EDAC support
  EDAC, altera: Add Arria10 ECC memory init functions
  Documentation: dt: socfpga: Add Arria10 Ethernet binding
  EDAC, altera: Drop some ifdeffery
  EDAC, altera: Add panic flag check to A10 IRQ
  EDAC, altera: Check parent status for Arria10 EDAC block
  EDAC, altera: Make all private data structures static
  EDAC: Correct channel count limit
  EDAC, amd64_edac: Init opstate at the proper time during init
  EDAC, altera: Handle Arria10 SDRAM child node
  EDAC, altera: Add ECC Manager IRQ controller support
  Documentation: dt: socfpga: Add interrupt-controller to ecc-manager

EDAC, sb_edac: Fix Knights Landing

2016-07-15T21:11:59+00:00

In commit 2c1ea4c700af ("EDAC, sb_edac: Use cpu family/model in driver
detection") I broke Knights Landing because I failed to notice that it
called a wrapper macro "sbridge_get_all_devices_knl" instead of
"sbridge_get_all_devices" like all the other types.

Now that we include the processor type in the pci_id_table structure we
can skip the wrappers and just have the sbridge_get_all_devices() check
the type to decide whether to allow duplicate devices and controllers to
have registers spread across buses.

Fixes: 2c1ea4c700af ("EDAC, sb_edac: Use cpu family/model in driver detection")
Tested-by: Lukasz Odzioba 
Acked-by: Aristeu Rozanski 
Signed-off-by: Tony Luck 
Signed-off-by: Linus Torvalds

EDAC, altera: Add Arria10 Ethernet EDAC support

2016-06-25T09:31:34+00:00

Add Altera Arria10 Ethernet FIFO memory EDAC support. Update to support
a common compatibility string for all Ethernet FIFOs in the DT.

Signed-off-by: Thor Thayer 
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-edac 
Link: http://lkml.kernel.org/r/1466603939-7526-8-git-send-email-tthayer@opensource.altera.com
Signed-off-by: Borislav Petkov

EDAC, altera: Add Arria10 ECC memory init functions

2016-06-24T19:16:38+00:00

In preparation for additional memory module ECCs, add the memory
initialization functions and helpers.

Signed-off-by: Thor Thayer 
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-edac 
Link: http://lkml.kernel.org/r/1466603939-7526-7-git-send-email-tthayer@opensource.altera.com
Signed-off-by: Borislav Petkov

EDAC, altera: Drop some ifdeffery

2016-06-24T12:18:33+00:00

Make the IRQ and check_deps() functions available to all the memory
buffers by moving them outside of the OCRAM only area.

Signed-off-by: Thor Thayer 
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-edac 
Link: http://lkml.kernel.org/r/1466603939-7526-5-git-send-email-tthayer@opensource.altera.com
Signed-off-by: Borislav Petkov

EDAC, altera: Add panic flag check to A10 IRQ

2016-06-24T09:58:43+00:00

In preparation for additional memory module ECCs, the IRQ function will
check a panic flag before doing a kernel panic on double bit errors.

OCRAM uncorrectable errors cause a panic because sleep/resume functions
and FPGA contents during sleep are stored in OCRAM.

ECCs on peripheral FIFO buffers will not cause a kernel panic on DBERRs
because the packet can be retried and therefore recovered.

Signed-off-by: Thor Thayer 
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-edac 
Link: http://lkml.kernel.org/r/1466603939-7526-3-git-send-email-tthayer@opensource.altera.com
Signed-off-by: Borislav Petkov

EDAC, altera: Check parent status for Arria10 EDAC block

2016-06-24T09:58:42+00:00

In preparation for the Arria10 ECC modules, check the status of the
parent in the device tree to ensure the block is enabled. Skip if no
parent phandle is set in the device tree.

Signed-off-by: Thor Thayer 
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-edac 
Link: http://lkml.kernel.org/r/1466603939-7526-2-git-send-email-tthayer@opensource.altera.com
Signed-off-by: Borislav Petkov

EDAC, altera: Make all private data structures static

2016-06-24T09:58:42+00:00

The device private data structures are used only here so make them
static.

Signed-off-by: Thor Thayer 
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-edac 
Link: http://lkml.kernel.org/r/1466603939-7526-4-git-send-email-tthayer@opensource.altera.com
Signed-off-by: Borislav Petkov