IF YOU WOULD LIKE TO GET AN ACCOUNT, please write an
email to Administrator. User accounts are meant only to access repo
and report issues and/or generate pull requests.
This is a purpose-specific Git hosting for
BaseALT
projects. Thank you for your understanding!
Только зарегистрированные пользователи имеют доступ к сервису!
Для получения аккаунта, обратитесь к администратору.
The count of errors is picked up from bits 52:38 of the machine check
bank status register. But this is the count of *corrected* errors. If an
uncorrected error is being logged, the h/w sets this field to 0. Which
means that when edac_mc_handle_error() is called, the EDAC core will
carefully add zero to the appropriate uncorrected error counts.
Signed-off-by: Tony Luck <tony.luck@intel.com>
[ Massage commit message. ]
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: stable@vger.kernel.org
Cc: Aristeu Rozanski <aris@redhat.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/20180928213934.19890-1-tony.luck@intel.com
Use the for_each_of_cpu_node iterator to iterate over cpu nodes. This
has the side effect of defaulting to iterating using "cpu" node names in
preference to the deprecated (for FDT) device_type == "cpu".
The error messages are removed in the process as it's not the driver's
job to be checking cpu nodes. Any problems with cpu nodes should be
noticed by the architecture code.
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: linux-edac@vger.kernel.org
Acked-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Rob Herring <robh@kernel.org>
The altera edac driver passes a token from a DT resource as
resource_size_t into an SMC call, but casts it to an __iomem pointer and
then a plain void pointer inbetween, mixing three or four incompatible
types in the process. The compiler complains about one of the
conversions:
drivers/edac/altera_edac.c: In function 'altr_init_a10_ecc_block':
drivers/edac/altera_edac.c:1053:10: error: cast to pointer from integer of \
different size [-Werror=int-to-pointer-cast]
base = (void __iomem *)res.start;
^
drivers/edac/altera_edac.c: In function 'altr_edac_a10_probe':
drivers/edac/altera_edac.c:2062:10: error: cast to pointer from integer of \
different size [-Werror=int-to-pointer-cast]
base = (void __iomem *)res.start;
Using a static checker probably also notices the __iomem cast. Solving
this properly isn't trivial, but simply casting to a 'uintptr_t' instead
of 'void __iomem *' makes it less wrong and should avoid the warnings.
Fixes: d5fc9125566c ("EDAC, altera: Combine Stratix10 and Arria10 probe functions")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Thor Thayer <thor.thayer@linux.intel.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: David Frey <dpfrey@gmail.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Cc: linux-edac@vger.kernel.org
Link: https://lkml.kernel.org/r/20180927100949.973078-1-arnd@arndb.de
Remove the unused local variable pvt:
drivers/edac/i7core_edac.c: In function 'i7core_mce_check_error':
drivers/edac/i7core_edac.c:1818:21: warning: variable 'pvt' set but not used \
[-Wunused-but-set-variable]
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/1537841043-108267-1-git-send-email-yuehaibing@huawei.com
The {i3200|i7core|sb|skx}_edac drivers show DIMM capacity using the
wrong unit symbol: 'Mb' - megabit. Fix them by replacing 'Mb' with
'MiB' - mebibyte.
[Tony: These are all "edac_dbg()" messages, so this won't break scripts
that parse console logs.]
Signed-off-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Aristeu Rozanski <aris@redhat.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: linux-edac@vger.kernel.org
Link: https://lkml.kernel.org/r/20180919003433.16475-1-tony.luck@intel.com
A static checker gave the following warnings:
drivers/edac/sb_edac.c:1030 ibridge_get_ha() warn: signedness bug returning '(-22)'
drivers/edac/sb_edac.c:1037 knl_get_ha() warn: signedness bug returning '(-22)'
Both because the functions are declared to return a "u8", but try to
return -EINVAL for the error case.
Fix by returning 0xff (since the caller doesn't look at, or pass on, the
return value).
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Cc: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/20180914201905.GA30946@agluck-desk
Signed-off-by: Borislav Petkov <bp@suse.de>
Add error reporting driver for Single Bit Errors (SBEs) and Double Bit
Errors (DBEs). As of now, this driver supports error reporting for
Last Level Cache Controller (LLCC) of Tag RAM and Data RAM. Interrupts
are triggered when the errors happen in the cache, the driver handles
those interrupts and dumps the syndrome registers.
Signed-off-by: Channagoud Kadabi <ckadabi@codeaurora.org>
Signed-off-by: Venkata Narendra Kumar Gutta <vnkgutta@codeaurora.org>
Co-developed-by: Venkata Narendra Kumar Gutta <vnkgutta@codeaurora.org>
Acked-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
sb_edac sometimes reports the wrong DIMM for a memory error found by
the patrol scrubber. That is because the hardware provides only a 4KB
page-aligned address for the error case.
This means that the EDAC driver will point at the DIMM matching offset
0x0 in the 4KB page, but because of interleaving across channels and
ranks, the actual DIMM involved may be different if the error is on some
other cache line within the page.
Therefore, reconstruct the socket/iMC/channel information from the "mce"
structure passed to the EDAC driver. The DIMM cannot be determined, so
pass "dimm=-1" to the EDAC core. It will report that all the DIMMs on
that channel may be affected.
Signed-off-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Cc: Aristeu Rozanski <aris@redhat.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/20180907230828.13901-3-tony.luck@intel.com
[ Improve comments on the functions to convert bank number
to memory controller number. Minor cleanup to commit message. ]
Signed-off-by: Tony Luck <tony.luck@intel.com>
[ Massage commit message more. ]
Signed-off-by: Borislav Petkov <bp@suse.de>
Users of the mce_register_decode_chain() are called for every logged
error. EDAC drivers should check:
1) Is this a memory error? [bit 7 in status register]
2) Is there a valid address? [bit 58 in status register]
3) Is the address a system address? [bitfield 8:6 in misc register]
The sb_edac driver performed test "1" twice. Waited far too long to
perform check "2". Didn't do check "3" at all.
Fix it by moving the test for valid address from
sbridge_mce_output_error() into sbridge_mce_check_error() and add a test
for the type immediately after. Delete the redundant check for the type
of the error from sbridge_mce_output_error().
Signed-off-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Cc: Aristeu Rozanski <aris@redhat.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/20180907230828.13901-2-tony.luck@intel.com
[ Re-word commit message. ]
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Split regmap_config.use_single_rw into use_single_read and
use_single_write. This change enables drivers of devices which only
support bulk operations in one direction to use the regmap_bulk_*()
functions for both directions and have their bulk operation split into
single operations only when necessary.
Update all struct regmap_config instances where use_single_rw==true to
instead set both use_single_read and use_single_write. No attempt was
made to evaluate whether it is possible to set only one of
use_single_read or use_single_write.
Signed-off-by: David Frey <dpfrey@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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>
Extend the driver to check whether segment number and bus number matches
when deciding how to group memory controller PCI devices to CPU sockets.
Signed-off-by: Masayoshi Mizuma <m.mizuma@jp.fujitsu.com>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/20180724190213.26359-1-msys.mizuma@gmail.com
[ Cleanup commit message. ]
Signed-off-by: Borislav Petkov <bp@suse.de>
In the quest to remove all stack VLA usage from the kernel[1], switch to
using a kmalloc-allocated buffer instead of stack space. This should be
fine since the existing routine is allocating memory too.
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Jan Glauber <jglauber@cavium.com>
Cc: David Daney <david.daney@cavium.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/20180629184850.GA37464@beast
Link: https://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qPXydAacU1RqZWA@mail.gmail.com [1]
Signed-off-by: Borislav Petkov <bp@suse.de>
Make sure to free and deregister the addrmatch and chancounts devices
allocated during probe in all error paths. Also fix use-after-free in a
probe error path and in the remove success path where the devices were
being put before before deregistration.
Signed-off-by: Johan Hovold <johan@kernel.org>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: linux-edac <linux-edac@vger.kernel.org>
Fixes: 356f0a30860d ("i7core_edac: change the mem allocation scheme to make Documentation/kobject.txt happy")
Link: http://lkml.kernel.org/r/20180612124335.6420-2-johan@kernel.org
Signed-off-by: Borislav Petkov <bp@suse.de>
Make sure to use put_device() to free the initialised struct device so
that resources managed by driver core also gets released in the event of
a registration failure.
Signed-off-by: Johan Hovold <johan@kernel.org>
Cc: Denis Kirjanov <kirjanov@gmail.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: linux-edac <linux-edac@vger.kernel.org>
Fixes: 2d56b109e3a5 ("EDAC: Handle error path in edac_mc_sysfs_init() properly")
Link: http://lkml.kernel.org/r/20180612124335.6420-1-johan@kernel.org
Signed-off-by: Borislav Petkov <bp@suse.de>
If regmap_write() fails, we should release some resources as done in all
the other error handling paths of the function.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Thor Thayer <thor.thayer@linux.intel.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/20180610174532.22071-1-christophe.jaillet@wanadoo.fr
Fixes: e9918d7fafae ("EDAC, altera: Handle SDRAM Uncorrectable Errors on Stratix10")
Signed-off-by: Borislav Petkov <bp@suse.de>
ARM machines all have DMI tables so if they request hw error reporting
through GHES, then the driver should be able to detect DIMMs and report
errors successfully (famous last words :)).
Make the platform-based list x86-specific so that ghes_edac can load on
ARM.
Reported-by: Qiang Zheng <zhengqiang10@huawei.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: James Morse <james.morse@arm.com>
Tested-by: James Morse <james.morse@arm.com>
Tested-by: Qiang Zheng <zhengqiang10@huawei.com>
Link: https://lkml.kernel.org/r/1526039543-180996-1-git-send-email-zhengqiang10@huawei.com
The kbuild test robot reported the following warning:
drivers/edac/altera_edac.c: In function 'ocram_free_mem':
drivers/edac/altera_edac.c:1410:42: warning: cast from pointer to integer
of different size [-Wpointer-to-int-cast]
gen_pool_free((struct gen_pool *)other, (u32)p, size);
^
After adding support for ARM64 architectures, the unsigned long
parameter is 64 bits and causes a build warning on 64-bit configs. Fix
by casting to the correct size (unsigned long) instead of u32.
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Thor Thayer <thor.thayer@linux.intel.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-edac <linux-edac@vger.kernel.org>
Fixes: c3eea1942a16 ("EDAC, altera: Add Altera L2 cache and OCRAM support")
Link: http://lkml.kernel.org/r/1526317441-4996-1-git-send-email-thor.thayer@linux.intel.com
Signed-off-by: Borislav Petkov <bp@suse.de>
Prevent build error when CONFIG_ACPI_NFIT=m and CONFIG_EDAC_SKX=y by
limiting EDAC_SKX based on how ACPI_NFIT is set.
Fixes this build error:
drivers/edac/skx_edac.o: In function `get_nvdimm_info':
../drivers/edac/skx_edac.c:399: undefined reference to `nfit_get_smbios_id'
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Fixes: 58ca9ac1463d ("EDAC, skx_edac: Detect non-volatile DIMMs")
Link: http://lkml.kernel.org/r/3af91354-8e19-d2af-1bba-ced8dce053f1@infradead.org
Signed-off-by: Borislav Petkov <bp@suse.de>
... for improved readability. Also, add a local mask variable for the
same reason.
No functional changes.
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Toshi Kani <toshi.kani@hpe.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
The ghes_edac driver obtains memory type from SMBIOS type 17, but it
does not recognize DDR4 and NVDIMM types.
Add support of DDR4 and NVDIMM types. NVDIMM type is denoted by memory
type DDR3/4 and non-volatile.
Reported-by: Robert Elliott <elliott@hpe.com>
Signed-off-by: Toshi Kani <toshi.kani@hpe.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/20180509222030.9299-1-toshi.kani@hpe.com
Signed-off-by: Borislav Petkov <bp@suse.de>
On Stratix10, uncorrectable errors are routed to the SError exception
instead of the IRQ exceptions. In Stratix10, uncorrectable SErrors
must be treated as fatal and will cause a panic. Older Altera/Intel
parts printed out a message for UE so do that here using the notifier
framework.
Record the UE in sticky registers that retain the state through a reset.
Check these registers on probe and printout the error on startup.
Signed-off-by: Thor Thayer <thor.thayer@linux.intel.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: mark.rutland@arm.com
Cc: mchehab@kernel.org
Cc: will.deacon@arm.com
Link: http://lkml.kernel.org/r/1526079610-5527-1-git-send-email-thor.thayer@linux.intel.com
[ Remove unused var in s10_edac_dberr_handler(), reorder args. ]
Signed-off-by: Borislav Petkov <bp@suse.de>
The use of the @ghes argument was removed in a previous commit, but
function signature was not updated to reflect this.
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Acked-by: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: linux-acpi@vger.kernel.org
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/20180430213358.8319-1-mr.nuke.me@gmail.com
Signed-off-by: Borislav Petkov <bp@suse.de>
Add a null check for ghes_pvt, before dereferencing it. The pointer
could still be null in case the return path is taken before initialising
ghes_pvt in the registration function.
Reviewed-by: Toshi Kani <toshi.kani@hpe.com>
Signed-off-by: Sughosh Ganu <sughosh.ganu@arm.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: lkml <linux-kernel@vger.kernel.org>
Link: http://lkml.kernel.org/r/1524737809-24475-1-git-send-email-sughosh.ganu@arm.com
Signed-off-by: Borislav Petkov <bp@suse.de>
Tony reported seeing
"Internal error: Can't find EDAC structure"
when injecting correctable errors due to the fact that ghes_edac would
still load even if the whitelist won't hit. Drop the pr_err() in
ghes_edac_report_mem_error() for now due to the hacky way how ghes_edac
depends on ghes.c.
While at it, make ghes_edac_register() return an error if it doesn't hit
in the whitelist as it is the only sensible thing to do in that
situation.
Furthermore, move the call to it to happen last in ghes_probe() so that
GHES initializing properly does not depend on ghes_edac init at all
as latter is only reporting errors and not required for GHES's proper
functioning.
Reviewed-by: Toshi Kani <toshi.kani@hpe.com>
Tested-by: Sughosh Ganu <sughosh.ganu@arm.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Tony Luck <tony.luck@intel.com>
Link: https://lkml.kernel.org/r/20180420182015.zao3olss4tvvlxki@agluck-desk
* misc fixes
-----BEGIN PGP SIGNATURE-----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=K89j
-----END PGP SIGNATURE-----
Merge tag 'edac_for_4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp
Pull EDAC updates from Borislav Petkov:
"Noteworthy is the NVDIMM support:
- NVDIMM support to EDAC (Tony Luck)
- misc fixes"
* tag 'edac_for_4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
EDAC, sb_edac: Remove variable length array usage
EDAC, skx_edac: Detect non-volatile DIMMs
firmware, DMI: Add function to look up a handle and return DIMM size
acpi, nfit: Add function to look up nvdimm device and provide SMBIOS handle
EDAC: Add new memory type for non-volatile DIMMs
EDAC: Drop duplicated array of strings for memory type names
EDAC, layerscape: Allow building for LS1021A
This removes the entire architecture code for blackfin, cris, frv, m32r,
metag, mn10300, score, and tile, including the associated device drivers.
I have been working with the (former) maintainers for each one to ensure
that my interpretation was right and the code is definitely unused in
mainline kernels. Many had fond memories of working on the respective
ports to start with and getting them included in upstream, but also saw
no point in keeping the port alive without any users.
In the end, it seems that while the eight architectures are extremely
different, they all suffered the same fate: There was one company
in charge of an SoC line, a CPU microarchitecture and a software
ecosystem, which was more costly than licensing newer off-the-shelf
CPU cores from a third party (typically ARM, MIPS, or RISC-V). It seems
that all the SoC product lines are still around, but have not used the
custom CPU architectures for several years at this point. In contrast,
CPU instruction sets that remain popular and have actively maintained
kernel ports tend to all be used across multiple licensees.
The removal came out of a discussion that is now documented at
https://lwn.net/Articles/748074/. Unlike the original plans, I'm not
marking any ports as deprecated but remove them all at once after I made
sure that they are all unused. Some architectures (notably tile, mn10300,
and blackfin) are still being shipped in products with old kernels,
but those products will never be updated to newer kernel releases.
After this series, we still have a few architectures without mainline
gcc support:
- unicore32 and hexagon both have very outdated gcc releases, but the
maintainers promised to work on providing something newer. At least
in case of hexagon, this will only be llvm, not gcc.
- openrisc, risc-v and nds32 are still in the process of finishing their
support or getting it added to mainline gcc in the first place.
They all have patched gcc-7.3 ports that work to some degree, but
complete upstream support won't happen before gcc-8.1. Csky posted
their first kernel patch set last week, their situation will be similar.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=fQ8z
-----END PGP SIGNATURE-----
Merge tag 'arch-removal' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pul removal of obsolete architecture ports from Arnd Bergmann:
"This removes the entire architecture code for blackfin, cris, frv,
m32r, metag, mn10300, score, and tile, including the associated device
drivers.
I have been working with the (former) maintainers for each one to
ensure that my interpretation was right and the code is definitely
unused in mainline kernels. Many had fond memories of working on the
respective ports to start with and getting them included in upstream,
but also saw no point in keeping the port alive without any users.
In the end, it seems that while the eight architectures are extremely
different, they all suffered the same fate: There was one company in
charge of an SoC line, a CPU microarchitecture and a software
ecosystem, which was more costly than licensing newer off-the-shelf
CPU cores from a third party (typically ARM, MIPS, or RISC-V). It
seems that all the SoC product lines are still around, but have not
used the custom CPU architectures for several years at this point. In
contrast, CPU instruction sets that remain popular and have actively
maintained kernel ports tend to all be used across multiple licensees.
[ See the new nds32 port merged in the previous commit for the next
generation of "one company in charge of an SoC line, a CPU
microarchitecture and a software ecosystem" - Linus ]
The removal came out of a discussion that is now documented at
https://lwn.net/Articles/748074/. Unlike the original plans, I'm not
marking any ports as deprecated but remove them all at once after I
made sure that they are all unused. Some architectures (notably tile,
mn10300, and blackfin) are still being shipped in products with old
kernels, but those products will never be updated to newer kernel
releases.
After this series, we still have a few architectures without mainline
gcc support:
- unicore32 and hexagon both have very outdated gcc releases, but the
maintainers promised to work on providing something newer. At least
in case of hexagon, this will only be llvm, not gcc.
- openrisc, risc-v and nds32 are still in the process of finishing
their support or getting it added to mainline gcc in the first
place. They all have patched gcc-7.3 ports that work to some
degree, but complete upstream support won't happen before gcc-8.1.
Csky posted their first kernel patch set last week, their situation
will be similar
[ Palmer Dabbelt points out that RISC-V support is in mainline gcc
since gcc-7, although gcc-7.3.0 is the recommended minimum - Linus ]"
This really says it all:
2498 files changed, 95 insertions(+), 467668 deletions(-)
* tag 'arch-removal' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: (74 commits)
MAINTAINERS: UNICORE32: Change email account
staging: iio: remove iio-trig-bfin-timer driver
tty: hvc: remove tile driver
tty: remove bfin_jtag_comm and hvc_bfin_jtag drivers
serial: remove tile uart driver
serial: remove m32r_sio driver
serial: remove blackfin drivers
serial: remove cris/etrax uart drivers
usb: Remove Blackfin references in USB support
usb: isp1362: remove blackfin arch glue
usb: musb: remove blackfin port
usb: host: remove tilegx platform glue
pwm: remove pwm-bfin driver
i2c: remove bfin-twi driver
spi: remove blackfin related host drivers
watchdog: remove bfin_wdt driver
can: remove bfin_can driver
mmc: remove bfin_sdh driver
input: misc: remove blackfin rotary driver
input: keyboard: remove bf54x driver
...
The Tile architecture is obsolete and getting removed from the kernel,
this driver appears to only be used there, and not on the ARM based
successors (Tile-Mx, BlueField), so we should remove it as well.
Acked-by: Borislav Petkov <bp@suse.de>
Acked-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
In preparation for enabling -Wvla, remove VLA and replace it with a
fixed-length array instead.
Also, remove max_interleave as it is no longer needed.
Reviewed-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/20180314182131.GA25259@embeddedgus
Signed-off-by: Borislav Petkov <bp@suse.de>
This just covers the topology function of the EDAC driver. We locate
which DIMM slots are populated with NVDIMMs and query the NFIT and
SMBIOS tables to get the size.
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Cc: Aristeu Rozanski <aris@redhat.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Len Brown <lenb@kernel.org>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: linux-acpi@vger.kernel.org
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: linux-nvdimm@lists.01.org
Link: http://lkml.kernel.org/r/20180312182430.10335-6-tony.luck@intel.com
Signed-off-by: Borislav Petkov <bp@suse.de>
There are now non-volatile versions of DIMMs. Add a new entry to "enum
mem_type" and a new string in edac_mem_types[].
Signed-off-by: Tony Luck <tony.luck@intel.com>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Aristeu Rozanski <aris@redhat.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Jean Delvare <jdelvare@suse.com>
Cc: Len Brown <lenb@kernel.org>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Cc: linux-acpi@vger.kernel.org
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: linux-nvdimm@lists.01.org
Link: http://lkml.kernel.org/r/20180312182430.10335-3-tony.luck@intel.com
Signed-off-by: Borislav Petkov <bp@suse.de>
Somehow we ended up with two separate arrays of strings to describe the
"enum mem_type" values.
In edac_mc.c we have an exported list edac_mem_types[] that is used
by a couple of drivers in debug messaged.
In edac_mc_sysfs.c we have a private list that is used to display
values in:
/sys/devices/system/edac/mc/mc*/dimm*/dimm_mem_type
/sys/devices/system/edac/mc/mc*/csrow*/mem_type
This list was missing a value for MEM_LRDDR3.
The string values in the two lists were different :-(
Combining the lists, I kept the values so that the sysfs output
will be unchanged as some scripts may depend on that.
Reported-by: Borislav Petkov <bp@suse.de>
Acked-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Aristeu Rozanski <aris@redhat.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Jean Delvare <jdelvare@suse.com>
Cc: Len Brown <lenb@kernel.org>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Cc: linux-acpi@vger.kernel.org
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: linux-nvdimm@lists.01.org
Link: http://lkml.kernel.org/r/20180312182430.10335-2-tony.luck@intel.com
Signed-off-by: Borislav Petkov <bp@suse.de>
The LS1021A has a memory controller supported by this driver. It builds
just fine, and I've done some rudimentary testing using the error
injection facility, which suggests that it is indeed working.
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Acked-by: York Sun <york.sun@nxp.com>
Cc: Alexander Stein <alexander.stein@systec-electronic.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/20180220150912.2954-1-rasmus.villemoes@prevas.dk
Signed-off-by: Borislav Petkov <bp@suse.de>
Commit
3286d3eb906c ("EDAC, sb_edac: Drop NUM_CHANNELS from 8 back to 4")
decreased NUM_CHANNELS from 8 to 4, but this is not enough for Knights
Landing which supports up to 6 channels.
This caused out-of-bounds writes to pvt->mirror_mode and pvt->tolm
variables which don't pay critical role on KNL code path, so the memory
corruption wasn't causing any visible driver failures.
The easiest way of fixing it is to change NUM_CHANNELS to 6. Do that.
An alternative solution would be to restructure the KNL part of the
driver to 2MC/3channel representation.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Anna Karbownik <anna.karbownik@intel.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: jim.m.snow@intel.com
Cc: krzysztof.paliswiat@intel.com
Cc: lukasz.odzioba@intel.com
Cc: qiuxu.zhuo@intel.com
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: <stable@vger.kernel.org>
Fixes: 3286d3eb906c ("EDAC, sb_edac: Drop NUM_CHANNELS from 8 back to 4")
Link: http://lkml.kernel.org/r/1519312693-4789-1-git-send-email-anna.karbownik@intel.com
[ Massage commit message. ]
Signed-off-by: Borislav Petkov <bp@suse.de>
Currently, bank 4 is reserved on Fam17h, so we chose not to initialize
bank 4 in the smca_banks array. This means that when we check if a bank
is initialized, like during boot or resume, we will see that bank 4 is
not initialized and try to initialize it.
This will cause a call trace, when resuming from suspend, due to
rdmsr_*on_cpu() calls in the init path. The rdmsr_*on_cpu() calls issue
an IPI but we're running with interrupts disabled. This triggers:
WARNING: CPU: 0 PID: 11523 at kernel/smp.c:291 smp_call_function_single+0xdc/0xe0
...
Reserved banks will be read-as-zero, so their MCA_IPID register will be
zero. So, like the smca_banks array, the threshold_banks array will not
have an entry for a reserved bank since all its MCA_MISC* registers will
be zero.
Enumerate a "Reserved" bank type that matches on a HWID_MCATYPE of 0,0.
Use the "Reserved" type when checking if a bank is reserved. It's
possible that other bank numbers may be reserved on future systems.
Don't try to find the block address on reserved banks.
Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: <stable@vger.kernel.org> # 4.14.x
Cc: Borislav Petkov <bp@alien8.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/20180221101900.10326-7-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Pull x86 PTI and Spectre related fixes and updates from Ingo Molnar:
"Here's the latest set of Spectre and PTI related fixes and updates:
Spectre:
- Add entry code register clearing to reduce the Spectre attack
surface
- Update the Spectre microcode blacklist
- Inline the KVM Spectre helpers to get close to v4.14 performance
again.
- Fix indirect_branch_prediction_barrier()
- Fix/improve Spectre related kernel messages
- Fix array_index_nospec_mask() asm constraint
- KVM: fix two MSR handling bugs
PTI:
- Fix a paranoid entry PTI CR3 handling bug
- Fix comments
objtool:
- Fix paranoid_entry() frame pointer warning
- Annotate WARN()-related UD2 as reachable
- Various fixes
- Add Add Peter Zijlstra as objtool co-maintainer
Misc:
- Various x86 entry code self-test fixes
- Improve/simplify entry code stack frame generation and handling
after recent heavy-handed PTI and Spectre changes. (There's two
more WIP improvements expected here.)
- Type fix for cache entries
There's also some low risk non-fix changes I've included in this
branch to reduce backporting conflicts:
- rename a confusing x86_cpu field name
- de-obfuscate the naming of single-TLB flushing primitives"
* 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (41 commits)
x86/entry/64: Fix CR3 restore in paranoid_exit()
x86/cpu: Change type of x86_cache_size variable to unsigned int
x86/spectre: Fix an error message
x86/cpu: Rename cpu_data.x86_mask to cpu_data.x86_stepping
selftests/x86/mpx: Fix incorrect bounds with old _sigfault
x86/mm: Rename flush_tlb_single() and flush_tlb_one() to __flush_tlb_one_[user|kernel]()
x86/speculation: Add <asm/msr-index.h> dependency
nospec: Move array_index_nospec() parameter checking into separate macro
x86/speculation: Fix up array_index_nospec_mask() asm constraint
x86/debug: Use UD2 for WARN()
x86/debug, objtool: Annotate WARN()-related UD2 as reachable
objtool: Fix segfault in ignore_unreachable_insn()
selftests/x86: Disable tests requiring 32-bit support on pure 64-bit systems
selftests/x86: Do not rely on "int $0x80" in single_step_syscall.c
selftests/x86: Do not rely on "int $0x80" in test_mremap_vdso.c
selftests/x86: Fix build bug caused by the 5lvl test which has been moved to the VM directory
selftests/x86/pkeys: Remove unused functions
selftests/x86: Clean up and document sscanf() usage
selftests/x86: Fix vDSO selftest segfault for vsyscall=none
x86/entry/64: Remove the unused 'icebp' macro
...
x86_mask is a confusing name which is hard to associate with the
processor's stepping.
Additionally, correct an indent issue in lib/cpu.c.
Signed-off-by: Jia Zhang <qianyue.zj@alibaba-inc.com>
[ Updated it to more recent kernels. ]
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: bp@alien8.de
Cc: tony.luck@intel.com
Link: http://lkml.kernel.org/r/1514771530-70829-1-git-send-email-qianyue.zj@alibaba-inc.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
We should not call edac_mc_del_mc() if a corresponding call to
edac_mc_add_mc() has not been performed yet.
So here, we should go to err instead of err2 to branch at the right
place of the error handling path.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/20180107205400.14068-1-christophe.jaillet@wanadoo.fr
Signed-off-by: Borislav Petkov <bp@suse.de>
TI Keystone and DRA7xx SoCs have support for EDAC on DDR3 memory that can
correct one bit errors and detect two bit errors. Add EDAC driver for this
feature which plugs into the generic kernel EDAC framework.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: linux-omap@vger.kernel.org
Link: http://lkml.kernel.org/r/1510578490-14510-1-git-send-email-t-kristo@ti.com
[ Add SPDX tag and make _emif_get_id() use edac_printk(). ]
Signed-off-by: Borislav Petkov <bp@suse.de>
