Pull EDAC fix from Borislav Petkov:
"A build fix for octeon_edac from Aaro Koskinen"
* tag 'edac_urgent_for_4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
EDAC, octeon: Fix broken build due to model helper renames
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
...
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>
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>
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>
