Commit Graph

107 Commits

Author SHA1 Message Date
Yazen Ghannam 2151c84ece EDAC/amd64: Add new register offset support and related changes
Introduce a "family flags" bitmask that can be used to indicate any
special behavior needed on a per-family basis.

Add a flag to indicate a system uses the new register offsets introduced
with Family 19h Model 10h.

Use this flag to account for register offset changes, a new bitfield
indicating DDR5 use on a memory controller, and to set the proper number
of chip select masks.

Rework f17_addr_mask_to_cs_size() to properly handle the change in chip
select masks. And update code comments to reflect the updated Chip
Select, DIMM, and Mask relationships.

[uninitialized variable warning]
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: William Roche <william.roche@oracle.com>
Link: https://lore.kernel.org/r/20220202144307.2678405-3-yazen.ghannam@amd.com
2022-02-23 22:01:33 +01:00
Yazen Ghannam 75aeaaf23d EDAC/amd64: Set memory type per DIMM
Current AMD systems allow mixing of DIMM types within a system. However,
DIMMs within a channel, i.e. managed by a single Unified Memory
Controller (UMC), must be of the same type.

Handle this possible configuration by checking and setting the memory
type for each individual "UMC" structure.

Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: William Roche <william.roche@oracle.com>
Link: https://lore.kernel.org/r/20220202144307.2678405-2-yazen.ghannam@amd.com
2022-02-23 21:53:45 +01:00
Marc Bevand 0b8bf9cb14 EDAC/amd64: Add support for family 19h, models 50h-5fh
Add the new family 19h models 50h-5fh PCI IDs (device 18h functions 0
and 6) to support Ryzen 5000 APUs ("Cezanne").

Signed-off-by: Marc Bevand <m@zorinaq.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Yazen Ghannam <yazen.ghannam@amd.com>
Link: https://lore.kernel.org/r/20211221233112.556927-1-m@zorinaq.com
2021-12-24 10:53:41 +01:00
Yazen Ghannam e2be5955a8 EDAC/amd64: Add support for AMD Family 19h Models 10h-1Fh and A0h-AFh
Add a new family type for AMD Family 19h Models 10h to 1Fh. Use this new
family type for Models A0h to AFh also.

Increase the maximum number of controllers from 8 to 12.

Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20211208174356.1997855-3-yazen.ghannam@amd.com
2021-12-10 12:54:33 +01:00
Borislav Petkov 61810096de EDAC/amd64: Merge error injection sysfs facilities
Merge them into the main driver and put them inside an EDAC_DEBUG
ifdeffery to simplify the driver and have all debugging/injection stuff
behind a debug build-time switch.

No functional changes.

Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Yazen Ghannam <yazen.ghannam@amd.com>
Link: https://lkml.kernel.org/r/20201215110517.5215-2-bp@alien8.de
2020-12-28 19:36:25 +01:00
Borislav Petkov 2a28ceef00 EDAC/amd64: Merge sysfs debugging attributes setup code
There's no need for them to be in a separate file so merge them into the
main driver compilation unit like the other EDAC drivers do.

Drop now-unneeded function export, make the function static and shorten
static function names.

No functional changes.

Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Yazen Ghannam <yazen.ghannam@amd.com>
Link: https://lkml.kernel.org/r/20201215110517.5215-1-bp@alien8.de
2020-12-28 19:36:17 +01:00
Alexander Monakov b6bea24d41 EDAC/amd64: Add AMD family 17h model 60h PCI IDs
Add support for AMD Renoir (4000-series Ryzen CPUs).

Signed-off-by: Alexander Monakov <amonakov@ispras.ru>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Yazen Ghannam <yazen.ghannam@amd.com>
Link: https://lkml.kernel.org/r/20200510204842.2603-4-amonakov@ispras.ru
2020-05-22 18:43:13 +02:00
Yazen Ghannam 2eb61c91c3 EDAC/amd64: Add family ops for Family 19h Models 00h-0Fh
Add family ops to support AMD Family 19h systems. Existing Family 17h
functions can be used. Also, add Family 19h to the list of families to
automatically load the module.

Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20200110015651.14887-5-Yazen.Ghannam@amd.com
2020-01-16 17:09:23 +01:00
Yazen Ghannam 5e4c55276a EDAC/amd64: Save max number of controllers to family type
The maximum number of memory controllers is fixed within a family/model
group. In most cases, this has been fixed at 2, but some systems may
have up to 8.

The struct amd64_family_type already contains family/model-specific
information, and this can be used rather than adding model checks to
various functions.

Create a new field in struct amd64_family_type for max_mcs.
Set this when setting other family type information, and use this when
needing the maximum number of memory controllers possible for a system.

Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: "linux-edac@vger.kernel.org" <linux-edac@vger.kernel.org>
Cc: James Morse <james.morse@arm.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Robert Richter <rrichter@marvell.com>
Cc: Tony Luck <tony.luck@intel.com>
Link: https://lkml.kernel.org/r/20191106012448.243970-4-Yazen.Ghannam@amd.com
2019-11-06 11:07:01 +01:00
Isaac Vaughn 3e443eb353 EDAC/amd64: Add PCI device IDs for family 17h, model 70h
Add the new Family 17h Model 70h PCI IDs (device 18h functions 0 and 6)
to the AMD64 EDAC module.

 [ bp: s/f17_base_addr_to_cs_size/f17_addr_mask_to_cs_size/g ]

Signed-off-by: Isaac Vaughn <isaac.vaughn@knights.ucf.edu>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: James Morse <james.morse@arm.com>
Cc: linux-edac@vger.kernel.org
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Robert Richter <rrichter@marvell.com>
Cc: Tony Luck <tony.luck@intel.com>
Link: https://lkml.kernel.org/r/20190906192131.8ced0ca112146f32d82b6cae@knights.ucf.edu
2019-09-07 07:29:27 +02:00
Yazen Ghannam 81f5090db8 EDAC/amd64: Support asymmetric dual-rank DIMMs
Future AMD systems will support asymmetric dual-rank DIMMs. These are
DIMMs where the ranks are of different sizes.

The even rank will use the Primary Even Chip Select registers and the
odd rank will use the Secondary Odd Chip Select registers.

Recognize if a Secondary Odd Chip Select is being used. Use the
Secondary Odd Address Mask when calculating the chip select size.

 [ bp: move csrow_sec_enabled() to the header, fix CS_ODD define and
   tone-down the capitalized words spelling. ]

Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: "linux-edac@vger.kernel.org" <linux-edac@vger.kernel.org>
Cc: James Morse <james.morse@arm.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Tony Luck <tony.luck@intel.com>
Link: https://lkml.kernel.org/r/20190821235938.118710-8-Yazen.Ghannam@amd.com
2019-08-23 16:09:52 +02:00
Yazen Ghannam 7574729e91 EDAC/amd64: Cache secondary Chip Select registers
AMD Family 17h systems have a set of secondary Chip Select Base
Addresses and Address Masks. These do not represent unique Chip
Selects, rather they are used in conjunction with the primary
Chip Select registers in certain cases.

Cache these secondary Chip Select registers for future use.

Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: "linux-edac@vger.kernel.org" <linux-edac@vger.kernel.org>
Cc: James Morse <james.morse@arm.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Tony Luck <tony.luck@intel.com>
Link: https://lkml.kernel.org/r/20190821235938.118710-7-Yazen.Ghannam@amd.com
2019-08-23 12:55:05 +02:00
Yazen Ghannam d971e28e2c EDAC/amd64: Support more than two controllers for chip selects handling
The struct chip_select array that's used for saving chip select bases
and masks is fixed at length of two. There should be one struct
chip_select for each controller, so this array should be increased to
support systems that may have more than two controllers.

Increase the size of the struct chip_select array to eight, which is the
largest number of controllers per die currently supported on AMD
systems.

Fix number of DIMMs and Chip Select bases/masks on Family17h, because
AMD Family 17h systems support 2 DIMMs, 4 CS bases, and 2 CS masks per
channel.

Also, carve out the Family 17h+ reading of the bases/masks into a
separate function. This effectively reverts the original bases/masks
reading code to before Family 17h support was added.

Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: "linux-edac@vger.kernel.org" <linux-edac@vger.kernel.org>
Cc: James Morse <james.morse@arm.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Tony Luck <tony.luck@intel.com>
Link: https://lkml.kernel.org/r/20190821235938.118710-2-Yazen.Ghannam@amd.com
2019-08-22 19:08:49 +02:00
Borislav Petkov 8de9930a46 Revert "EDAC/amd64: Support more than two controllers for chip select handling"
This reverts commit 0a227af521.

Unfortunately, this commit caused wrong detection of chip select sizes
on some F17h client machines:

  --- 00-rc6+     2019-02-14 14:28:03.126622904 +0100
  +++ 01-rc4+     2019-04-14 21:06:16.060614790 +0200
   EDAC amd64: MC: 0:     0MB 1:     0MB
  -EDAC amd64: MC: 2: 16383MB 3: 16383MB
  +EDAC amd64: MC: 2:     0MB 3: 2097151MB
   EDAC amd64: MC: 4:     0MB 5:     0MB
   EDAC amd64: MC: 6:     0MB 7:     0MB
   EDAC MC: UMC1 chip selects:
   EDAC amd64: MC: 0:     0MB 1:     0MB
  -EDAC amd64: MC: 2: 16383MB 3: 16383MB
  +EDAC amd64: MC: 2:     0MB 3: 2097151MB
   EDAC amd64: MC: 4:     0MB 5:     0MB
   EDAC amd64: MC: 6:     0MB 7:     0M

Revert it for now until it has been solved properly.

Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Yazen Ghannam <yazen.ghannam@amd.com>
2019-04-25 16:30:34 +02:00
Yazen Ghannam 0a227af521 EDAC/amd64: Support more than two controllers for chip select handling
The struct chip_select array that's used for saving chip select bases
and masks is fixed at length of two. There should be one struct
chip_select for each controller, so this array should be increased to
support systems that may have more than two controllers.

Increase the size of the struct chip_select array to eight, which is the
largest number of controllers per die currently supported on AMD
systems.

Also, carve out the Family 17h+ reading of the bases/masks into a
separate function. This effectively reverts the original bases/masks
reading code to before Family 17h support was added.

Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Tested-by: Kim Phillips <kim.phillips@amd.com>
Cc: James Morse <james.morse@arm.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: https://lkml.kernel.org/r/20190228153558.127292-5-Yazen.Ghannam@amd.com
2019-03-27 00:13:25 +01:00
Yazen Ghannam 7835961d37 EDAC/amd64: Recognize x16 symbol size
Future AMD systems may support x16 symbol sizes.

Recognize if a system is using x16 symbol size. Also, simplify the print
statement.

Note that a x16 syndrome vector table is not necessary like with x4 or
x8 syndromes. This is because systems that support x16 symbol sizes are
SMCA systems and in that case, the syndrome can be directly extracted
from the MCA_SYND[Syndrome] field.

 [ bp: massage. ]

Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Tested-by: Kim Phillips <kim.phillips@amd.com>
Cc: James Morse <james.morse@arm.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: https://lkml.kernel.org/r/20190228153558.127292-4-Yazen.Ghannam@amd.com
2019-03-27 00:13:25 +01:00
Yazen Ghannam bdcee7747f EDAC/amd64: Support more than two Unified Memory Controllers
The first few models of Family 17h all had 2 Unified Memory Controllers
per Die, so this was treated as a fixed value. However, future systems
may have more Unified Memory Controllers per Die.

Related to this, the channel number and base address of a Unified Memory
Controller were found by matching on fixed, known values. However,
current and future systems follow this pattern for the channel number
and base address of a Unified Memory Controller: 0xYXXXXX, where Y is
the channel number. So matching on hardcoded values is not necessary.

Set the number of Unified Memory Controllers at driver init time based
on the family/model. Also, update the functions that find the channel
number and base address of a Unified Memory Controller to support more
than two.

 [ bp: Move num_umcs into the .c file and simplify comment. ]

Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Tested-by: Kim Phillips <kim.phillips@amd.com>
Cc: James Morse <james.morse@arm.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: https://lkml.kernel.org/r/20190228153558.127292-3-Yazen.Ghannam@amd.com
2019-03-27 00:13:25 +01:00
Yazen Ghannam 6e846239e5 EDAC/amd64: Add Family 17h Model 30h PCI IDs
Add the new Family 17h Model 30h PCI IDs to the AMD64 EDAC module.

This also fixes a probe failure that appeared when some other PCI IDs
for Family 17h Model 30h were added to the AMD NB code.

Fixes: be3518a16e (x86/amd_nb: Add PCI device IDs for family 17h, model 30h)
Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Tested-by: Kim Phillips <kim.phillips@amd.com>
Cc: James Morse <james.morse@arm.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: https://lkml.kernel.org/r/20190228153558.127292-1-Yazen.Ghannam@amd.com
2019-03-27 00:13:25 +01:00
Michael Jin 8960de4a5c EDAC, amd64: Add Family 17h, models 10h-2fh support
Add new device IDs for family 17h, models 10h-2fh.

This is required by amd64_edac_mod in order to properly detect PCI
device functions 0 and 6.

Signed-off-by: Michael Jin <mikhail.jin@gmail.com>
Reviewed-by: Yazen Ghannam <Yazen.Ghannam@amd.com>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/20180816192840.31166-1-mikhail.jin@gmail.com
Signed-off-by: Borislav Petkov <bp@suse.de>
2018-08-27 06:17:21 +02:00
Borislav Petkov e62d2ca9d0 EDAC, amd64: Bump driver version
Last time we did that was when we enabled Bulldozer. Now, we enabled Zen
so it is only natural ... :-)

Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Yazen Ghannam <Yazen.Ghannam@amd.com>
2017-02-14 11:58:05 +01:00
Yazen Ghannam 1bd9900b83 EDAC, amd64: Add x86cpuid sanity check during init
Match one of the devices in amd64_cpuids[] before loading the module.
This is an additional sanity check against users trying to load
amd64_edac_mod on unsupported systems.

Signed-off-by: Yazen Ghannam <Yazen.Ghannam@amd.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/1485537863-2707-9-git-send-email-Yazen.Ghannam@amd.com
[ Get rid of err_ret label, make it a bit more readable this way. ]
Signed-off-by: Borislav Petkov <bp@suse.de>
2017-01-28 14:43:06 +01:00
Yazen Ghannam df64636fa4 EDAC, amd64: Remove unused printing macros
amd64_{debug,notice} don't have any users, so remove them.

Signed-off-by: Yazen Ghannam <Yazen.Ghannam@amd.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/1485537863-2707-6-git-send-email-Yazen.Ghannam@amd.com
Signed-off-by: Borislav Petkov <bp@suse.de>
2017-01-28 13:20:06 +01:00
Mauro Carvalho Chehab 78d88e8a3d edac: rename edac_core.h to edac_mc.h
Now, all left at edac_core.h are at drivers/edac/edac_mc.c,
so rename it to edac_mc.h.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-12-15 08:54:51 -02:00
Borislav Petkov 5246c54007 EDAC, amd64: Improve amd64-specific printing macros
Prefix the warn and error macros with the respective string so that
callers don't have to say "Error" or "Warning". We save us string length
this way in the actual calls.

While at it, shorten the calls in reserve_mc_sibling_devs().

Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Yazen Ghannam <Yazen.Ghannam@amd.com>
2016-12-01 11:35:07 +01:00
Yazen Ghannam 713ad54675 EDAC, amd64: Define and register UMC error decode function
How we need to decode UMC errors is different from how we decode bus
errors, so let's define a new function for this. We also need a way to
determine the UMC channel since we're not guaranteed that there is a
fixed relation between channel and MCA bank.

Signed-off-by: Yazen Ghannam <Yazen.Ghannam@amd.com>
Cc: Aravind Gopalakrishnan <aravindksg.lkml@gmail.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: x86-ml <x86@kernel.org>
Link: http://lkml.kernel.org/r/1480359593-80369-1-git-send-email-Yazen.Ghannam@amd.com
[ Fold in decode_synd_reg(), simplify. ]
Signed-off-by: Borislav Petkov <bp@suse.de>
2016-11-29 18:05:48 +01:00
Yazen Ghannam 07ed82ef93 EDAC, amd64: Add Fam17h debug output
Read a few more UMC registers and provide debug output in order to be as
similar as possible to older AMD systems.

Signed-off-by: Yazen Ghannam <Yazen.Ghannam@amd.com>
Cc: Aravind Gopalakrishnan <aravindksg.lkml@gmail.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: x86-ml <x86@kernel.org>
Link: http://lkml.kernel.org/r/1480344621-14966-1-git-send-email-Yazen.Ghannam@amd.com
[ Remove unneeded K8 check and comments, fixup others. ]
Signed-off-by: Borislav Petkov <bp@suse.de>
2016-11-29 17:16:09 +01:00
Yazen Ghannam 8051c0af3c EDAC, amd64: Add Fam17h scrubber support
Fam17h has new register offsets and fields for setting up the DRAM
scrubber so add support for this.

Signed-off-by: Yazen Ghannam <Yazen.Ghannam@amd.com>
Cc: Aravind Gopalakrishnan <aravindksg.lkml@gmail.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: x86-ml <x86@kernel.org>
Link: http://lkml.kernel.org/r/1479423463-8536-17-git-send-email-Yazen.Ghannam@amd.com
Signed-off-by: Borislav Petkov <bp@suse.de>
2016-11-28 17:50:12 +01:00
Yazen Ghannam b64ce7cd7f EDAC, amd64: Read MC registers on AMD Fam17h
Fam17h has a different set of registers and bitfields. Most of these
registers are read through SMN (System Management Network) rather
than PCI config space. Also, the derivation of various values is now
different.

Update amd64_edac to read the appropriate registers and extract the
correct values for Fam17h.

Signed-off-by: Yazen Ghannam <Yazen.Ghannam@amd.com>
Cc: Aravind Gopalakrishnan <aravindksg.lkml@gmail.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: x86-ml <x86@kernel.org>
Link: http://lkml.kernel.org/r/1479423463-8536-12-git-send-email-Yazen.Ghannam@amd.com
[ Save us the indentation level in read_mc_regs(), add defines ]
Signed-off-by: Borislav Petkov <bp@suse.de>
2016-11-28 17:50:11 +01:00
Yazen Ghannam 936fc3afaa EDAC, amd64: Reserve correct PCI devices on AMD Fam17h
Fam17h needs PCI device functions 0 and 6 instead of 1 and 2 as on older
systems. Update struct amd64_pvt to hold the new functions and reserve
them if on Fam17h.

Also, allocate an array of UMC structs within our newly allocated PVT
struct.

Signed-off-by: Yazen Ghannam <Yazen.Ghannam@amd.com>
Cc: Aravind Gopalakrishnan <aravindksg.lkml@gmail.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: x86-ml <x86@kernel.org>
Link: http://lkml.kernel.org/r/1479423463-8536-11-git-send-email-Yazen.Ghannam@amd.com
[ init_one_instance() error handling, shorten lines, unbreak >80 cols lines. ]
Signed-off-by: Borislav Petkov <bp@suse.de>
2016-11-28 17:49:40 +01:00
Yazen Ghannam f1cbbec9fc EDAC, amd64: Add AMD Fam17h family type and ops
Add a family type and associated ops for Fam17h. Define a struct to hold
all the UMC registers that we need. Make this a part of struct amd64_pvt
in order to maximize code reuse in the rest of the driver.

Signed-off-by: Yazen Ghannam <Yazen.Ghannam@amd.com>
Cc: Aravind Gopalakrishnan <aravindksg.lkml@gmail.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: x86-ml <x86@kernel.org>
Link: http://lkml.kernel.org/r/1479423463-8536-10-git-send-email-Yazen.Ghannam@amd.com
Signed-off-by: Borislav Petkov <bp@suse.de>
2016-11-24 21:24:09 +01:00
Yazen Ghannam 196b79fcc8 EDAC, amd64: Extend ecc_enabled() to Fam17h
Update the ecc_enabled() function to work on Fam17h. This entails
reading a different set of registers and using the SMN (System
Management Network) rather than PCI devices.

Signed-off-by: Yazen Ghannam <Yazen.Ghannam@amd.com>
Cc: Aravind Gopalakrishnan <aravindksg.lkml@gmail.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: x86-ml <x86@kernel.org>
Link: http://lkml.kernel.org/r/1479423463-8536-9-git-send-email-Yazen.Ghannam@amd.com
[ Fixup ecc_en assignment and get_umc_base(). ]
Signed-off-by: Borislav Petkov <bp@suse.de>
2016-11-24 21:07:03 +01:00
Borislav Petkov 3f37a36b62 EDAC, amd64_edac: Drop pci_register_driver() use
- remove homegrown instances counting.
- take F3 PCI device from amd_nb caching instead of F2 which was used with the
PCI core.

With those changes, the driver doesn't need to register a PCI driver and
relies on the northbridges caching which we do anyway on AMD.

Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Yazen Ghannam <yazen.ghannam@amd.com>
2016-05-09 20:41:16 +02:00
Aravind Gopalakrishnan 1a8bc7707e EDAC, amd64_edac: Update copyright and remove changelog
Git provides us all the changelogs anyway. So trim the comments section
here. Update the copyrights info while at it.

Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/1443440593-2316-3-git-send-email-Aravind.Gopalakrishnan@amd.com
Signed-off-by: Borislav Petkov <bp@suse.de>
2015-09-29 13:41:04 +02:00
Aravind Gopalakrishnan da92110dfd EDAC, amd64_edac: Extend scrub rate support to F15hM60h
The scrub rate control register has moved to function 2 in PCI config
space and is at a different offset on family 0x15, models 0x60 and
later. The minimum recommended scrub rate has also changed. (Refer to
D18F2x1c9_dct[1:0][DramScrub] in Fam15hM60h BKDG).

Adjust set_scrub_rate() and get_scrub_rate() functions to accommodate
this.

Tested on F15hM60h, Fam15h, models 00h-0fh and Fam10h systems.

Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/1443440593-2316-2-git-send-email-Aravind.Gopalakrishnan@amd.com
[ Cleanup conditionals. ]
Signed-off-by: Borislav Petkov <bp@suse.de>
2015-09-29 13:25:33 +02:00
Takashi Iwai e339f1ec97 EDAC: amd64: Use static attribute groups
Instead of calling device_create_file() and device_remove_file()
manually, pass the static attribute groups with the new
edac_mc_add_mc_with_groups(). The conditional creation of inject sysfs
files is done by a proper is_visible callback.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: http://lkml.kernel.org/r/1423046938-18111-4-git-send-email-tiwai@suse.de
Signed-off-by: Borislav Petkov <bp@suse.de>
2015-02-23 13:08:09 +01:00
Aravind Gopalakrishnan a597d2a5d9 amd64_edac: Add F15h M60h support
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>
2014-10-30 13:42:48 +01:00
Aravind Gopalakrishnan 7981a28f1a amd64_edac: Modify usage of amd64_read_dct_pci_cfg()
Rationale behind this change:
 - F2x1xx addresses were stopped from being mapped explicitly to DCT1
   from F15h (OR) onwards. They use _dct[0:1] mechanism to access the
   registers. So we should move away from using address ranges to select
   DCT for these families.
 - On newer processors, the address ranges used to indicate DCT1 (0x140,
   0x1a0) have different meanings than what is assumed currently.

Changes introduced:
 - amd64_read_dct_pci_cfg() now takes in dct value and uses it for
   'selecting the dct'
 - Update usage of the function. Keep in mind that different families
   have specific handling requirements
 - Remove [k8|f10]_read_dct_pci_cfg() as they don't do much different
   from amd64_read_pci_cfg()
   - Move the k8 specific check to amd64_read_pci_cfg
 - Remove f15_read_dct_pci_cfg() and move logic to amd64_read_dct_pci_cfg()
 - Remove now needless .read_dct_pci_cfg

Testing:
 - Tested on Fam 10h; Fam15h Models: 00h, 30h; Fam16h using 'EDAC_DEBUG'
   and mce_amd_inj
 - driver obtains info from F2x registers and caches it in pvt
   structures correctly
 - ECC decoding works fine

Signed-off-by: Aravind Gopalakrishnan <aravind.gopalakrishnan@amd.com>
Link: http://lkml.kernel.org/r/1410799058-3149-1-git-send-email-aravind.gopalakrishnan@amd.com
Signed-off-by: Borislav Petkov <bp@suse.de>
2014-09-23 13:16:05 +02:00
Aravind Gopalakrishnan 85a8885bd0 amd64_edac: Add support for newer F16h models
Extend ECC decoding support for F16h M30h. Tested on F16h M30h with ECC
turned on using mce_amd_inj module and the patch works fine.

Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>
Link: http://lkml.kernel.org/r/1392913726-16961-1-git-send-email-Aravind.Gopalakrishnan@amd.com
Tested-by: Arindam Nath <Arindam.Nath@amd.com>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
2014-02-27 18:03:16 +01:00
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
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
Aravind Gopalakrishnan 94c1acf2c8 amd64_edac: Add Family 16h support
Add code to handle DRAM ECC errors decoding for Fam16h.

Tested on Fam16h with ECC turned on using the mce_amd_inj facility and
works fine.

Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>
[ Boris: cleanups and clarifications ]
Signed-off-by: Borislav Petkov <bp@suse.de>
2013-04-19 12:46:50 +02:00
Daniel J Blueman c7e5301a1b amd64_edac: Fix type usage in NB IDs and memory ranges
Use appropriate types for northbridge IDs and memory ranges. Mark
immutable data const and keep within compilation unit on related
structures.

Signed-off-by: Daniel J Blueman <daniel@numascale-asia.com>
Link: http://lkml.kernel.org/r/1354265060-22956-2-git-send-email-daniel@numascale-asia.com
[Boris: Drop arg change to node_to_amd_nb]
Signed-off-by: Borislav Petkov <bp@alien8.de>
2013-01-10 16:18:00 +01:00
Daniel J Blueman 772c3ff385 x86, AMD, NB: Add multi-domain support
Fix get_node_id to match northbridge IDs from the array of detected
ones, allowing multi-server support such as with Numascale's
NumaConnect, renaming to 'amd_get_node_id' for consistency.

Signed-off-by: Daniel J Blueman <daniel@numascale-asia.com>
Link: http://lkml.kernel.org/r/1353997932-8475-1-git-send-email-daniel@numascale-asia.com
[Boris: shorten lines to fit 80 cols]
Signed-off-by: Borislav Petkov <bp@alien8.de>
2013-01-10 16:17:58 +01:00
Borislav Petkov 0a5dfc3140 amd64_edac: Use DBAM_DIMM macro
Instead of open-coding it, use the DBAM_DIMM macro in
amd64_csrow_nr_pages() which we have already.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2012-11-28 11:46:19 +01:00
Borislav Petkov 33ca0643c9 amd64_edac: Reorganize error reporting path
Rewrite CE/UE paths so that they use the same code and drop additional
code duplication in handle_ue. Add a struct err_info which collects
required info for the error reporting. This, in turn, helps slimming all
edac_mc_handle_error() calls down to one.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2012-11-28 11:45:34 +01:00
Borislav Petkov 66fed2d464 amd64_edac: Improve error injection
When injecting DRAM ECC errors over the F3xB[8,C] interface, the machine
does this by injecting the error in the next non-cached access. This
takes relatively long time on a normal system so that in order for us to
expedite it, we disable the caches around the injection.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2012-11-28 11:45:01 +01:00
Borislav Petkov 6e71a870b8 amd64_edac: Cleanup error injection code
Invert kstrtoul return value testing and win one indentation level.
Also, shorten up macro names so that the lines can fit into 80 cols. No
functional change.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2012-11-28 11:44:35 +01:00
Borislav Petkov 43aff26ce1 EDAC: Change Boris' email address
My @amd.com address will be invalid soon so move to private
email address.

Signed-off-by: Borislav Petkov <bp@alien8.de>
Link: http://lkml.kernel.org/r/1351532410-4887-2-git-send-email-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-10-30 10:05:51 +01:00
Mauro Carvalho Chehab c56087595f amd64_edac: convert sysfs logic to use struct device
Now that the EDAC core supports struct device, there's no sense
on having any logic at the EDAC core to simulate it. So, instead
of adding such logic there, change the logic at amd64_edac to
use it.

Reviewed-by: Aristeu Rozanski <arozansk@redhat.com>
Cc: Doug Thompson <norsk5@yahoo.com>
Cc: Borislav Petkov <borislav.petkov@amd.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-06-11 13:23:40 -03:00