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Large systems separate their PCI busses into segments since
the limit of only 256 PCI busses can be too restrictive.
Extend this driver to check whether <segment, bus-number> matches
when deciding how to group memory controller PCI devices to
CPU sockets.
Signed-off-by: Tony Luck <tony.luck@intel.com>
Cc: Aristeu Rozanski <arozansk@redhat.com>
Cc: Charles Rose <charles.rose@dell.com>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/f58abfd10bf73c8bc5adc1fe4de7408128b00625.1506358467.git.tony.luck@intel.com
[ Make skx_dev.seg an int. ]
Signed-off-by: Borislav Petkov <bp@suse.de>
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Single-rank DIMMs did not get detected on Skylake/Kabylake systems due
to wrong limit check. The single rank DIMM check is a simple typo. "0"
is a legal value in this field meaning single rank.
Signed-off-by: Charles Rose <charles.rose@dell.com>
Cc: Aristeu Rozanski <arozansk@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/66df72d327c265fbf92fe25df96daa228a35f076.1506358467.git.tony.luck@intel.com
[ Also fix debug message to print number of ranks. ]
Signed-off-by: Tony Luck <tony.luck@intel.com>
[ Expand commit message. ]
Signed-off-by: Borislav Petkov <bp@suse.de>
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Change x86 EDAC platform drivers to verify the module owner at the
beginning of their module init functions. This allows them to fail their
init immediately when ghes_edac is enabled. Similar change can be made
to other edac drivers if necessary.
Also, remove ".c" from module names of pnp2_edac, sb_edac, and skx_edac.
Signed-off-by: Toshi Kani <toshi.kani@hpe.com>
Suggested-by: Borislav Petkov <bp@alien8.de>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/20170823225447.15608-6-toshi.kani@hpe.com
Signed-off-by: Borislav Petkov <bp@suse.de>
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kasprintf() can fail and we must check its return value.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Cc: linux-edac@vger.kernel.org
[ Merged into a single patch, small formatting fixups. ]
Signed-off-by: Borislav Petkov <bp@suse.de>
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It is a write-only variable so get rid of it.
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Robert Richter <rric@kernel.org>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Thor Thayer <thor.thayer@linux.intel.com>
Acked-by: Tony Luck <tony.luck@intel.com>
Cc: Mark Gross <mark.gross@intel.com>
Cc: Tim Small <tim@buttersideup.com>
Cc: Ranganathan Desikan <ravi@jetztechnologies.com>
Cc: "Arvind R." <arvino55@gmail.com>
Cc: Jason Baron <jbaron@akamai.com>
Cc: "Sören Brinkmann" <soren.brinkmann@xilinx.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: David Daney <david.daney@cavium.com>
Cc: Loc Ho <lho@apm.com>
Cc: linux-edac@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-mips@linux-mips.org
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Change them to have the edac_ prefix.
No functionality change.
Signed-off-by: Borislav Petkov <bp@suse.de>
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Assign all notifiers on the MCE decode chain a priority so that they get
called in the correct order.
Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Yazen Ghannam <Yazen.Ghannam@amd.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/20170123183514.13356-10-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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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>
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Fix the following sparse warnings:
drivers/edac/skx_edac.c:266:25: warning:
symbol 'skx_cpuids' was not declared. Should it be static?
drivers/edac/skx_edac.c:1040:12: warning:
symbol 'skx_init' was not declared. Should it be static?
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/1477147098-2842-1-git-send-email-weiyj.lk@gmail.com
Signed-off-by: Borislav Petkov <bp@suse.de>
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We now have symbolic names for a bunch of Intel CPU models via
asm/intel-family.h. The original conversion missed the EDAC drivers.
Convert them.
Signed-off-by: Dave Hansen <dave.hansen@intel.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/20160929204321.9FAE5F84@viggo.jf.intel.com
[ Remove comment, macro name is descriptive enough. ]
Signed-off-by: Borislav Petkov <bp@suse.de>
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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 <aris@redhat.com>
Acked-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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