EDAC/ie31200: Add Skylake-S support

Add device IDs for Skylake-S CPUs according to datasheet.

Signed-off-by: Josh Hant <joshuahant@gmail.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Jason Baron <jbaron@akamai.com>
Link: https://lore.kernel.org/r/20220712102121.20812-1-joshuahant@gmail.com

EDAC: Do not issue useless debug statements in the polling routine

They have been spreading around the subsystem by example so remove them
all.

Reported-by: Raymond Bennett <raymond.bennett@gmail.com>
Suggested-by: Jason Baron <jbaron@akamai.com>
Signed-off-by: Borislav Petkov <bp@suse.de>

EDAC: Replace HTTP links with HTTPS ones

Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
If not .svg:
For each line:
If doesn't contain `\bxmlns\b`:
For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
If both the HTTP and HTTPS versions
return 200 OK and serve the same content:
Replace HTTP with HTTPS.

[ bp: Merge all EDAC patches into a single one. ]

Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Tero Kristo <t-kristo@ti.com> # ti_edac
Link: https://lkml.kernel.org/r/20200708113546.14135-1-grandmaster@al2klimov.de

EDAC/ie31200: Fallback if host bridge device is already initialized

The Intel uncore driver may claim some of the pci ids from ie31200 which
means that the ie31200 edac driver will not initialize them as part of
pci_register_driver().

Let's add a fallback for this case to 'pci_get_device()' to get a
reference on the device such that it can still be configured. This is
similar in approach to other edac drivers.

Signed-off-by: Jason Baron <jbaron@akamai.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: linux-edac <linux-edac@vger.kernel.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Link: https://lore.kernel.org/r/1594923911-10885-1-git-send-email-jbaron@akamai.com

remove ioremap_nocache and devm_ioremap_nocache

ioremap has provided non-cached semantics by default since the Linux 2.6
days, so remove the additional ioremap_nocache interface.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>

EDAC: Replace EDAC_DIMM_PTR() macro with edac_get_dimm() function

The EDAC_DIMM_PTR() macro takes 3 arguments from struct mem_ctl_info.
Clean up this interface to only pass the mci struct and replace this
macro with a new function edac_get_dimm().

Also introduce an edac_get_dimm_by_index() function for later use.
This allows it to get a DIMM pointer only by a given index. This can
be useful if the DIMM's position within the layers of the memory
controller or the exact size of the layers are unknown.

Small style changes made for some hunks after applying the semantic
patch.

Semantic patch used:

@@ expression mci, a, b,c; @@

-EDAC_DIMM_PTR(mci->layers, mci->dimms, mci->n_layers, a, b, c)
+edac_get_dimm(mci, a, b, c)

[ bp: Touchups. ]

Signed-off-by: Robert Richter <rrichter@marvell.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: "linux-edac@vger.kernel.org" <linux-edac@vger.kernel.org>
Cc: James Morse <james.morse@arm.com>
Cc: Jason Baron <jbaron@akamai.com>
Cc: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Cc: Tero Kristo <t-kristo@ti.com>
Cc: Tony Luck <tony.luck@intel.com>
Link: https://lkml.kernel.org/r/20191106093239.25517-2-rrichter@marvell.com

EDAC/ie31200: Reformat PCI device table

Reformat device table after Coffee Lake additions to be more readable.

No functional change.

Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Tony Luck <tony.luck@intel.com>
Cc: James Morse <james.morse@arm.com>
Cc: Jason Baron <jbaron@akamai.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Link: https://lkml.kernel.org/r/20190610191422.177931-2-elver@google.com

EDAC/ie31200: Add Intel Coffee Lake CPU support

Coffee Lake seems to work like Skylake and Kaby Lake. Add all device IDs
for Coffee Lake-S CPUs according to datasheet.

[ bp: Massage. ]

Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Tony Luck <tony.luck@intel.com>
Cc: James Morse <james.morse@arm.com>
Cc: Jason Baron <jbaron@akamai.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Link: https://lkml.kernel.org/r/20190610191422.177931-1-elver@google.com

treewide: Add SPDX license identifier for more missed files

Add SPDX license identifiers to all files which:

- Have no license information of any form

- Have MODULE_LICENCE("GPL*") inside which was used in the initial
scan/conversion to ignore the file

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

GPL-2.0-only

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

EDAC: Get rid of mci->mod_ver

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

EDAC, ie31200: Add Intel Kaby Lake CPU support

Kaby Lake seems to work just like Skylake.

Reported-and-tested-by: Doug Thompson <bc.tdw@recursor.net>
Signed-off-by: Jason Baron <jbaron@akamai.com>
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/1495823683-32569-1-git-send-email-jbaron@akamai.com
Signed-off-by: Borislav Petkov <bp@suse.de>

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>

EDAC, ie31200_edac: Add Skylake support

Skylake adjusts some register locations, but otherwise follows the
existing model quite closely. I was able to verify that the 'ce_count'
increments when 'bad dimms' are used. The accounting of 'ce_count' and
'ue_count' is the primary functionality of interest for us. Tested on
Intel(R) Xeon(R) CPU E3-1260L v5 @ 2.90GHz.

Signed-off-by: Jason Baron <jbaron@akamai.com>
Acked-by: Tony Luck <tony.luck@intel.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/1462547927-22679-1-git-send-email-jbaron@akamai.com
Signed-off-by: Borislav Petkov <bp@suse.de>

move io-64-nonatomic*.h out of asm-generic

These are not implementations of default architecture code but helpers
for drivers. Move them to the place they belong to.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Darren Hart <dvhart@linux.intel.com>
Acked-by: Hitoshi Mitake <mitake.hitoshi@lab.ntt.co.jp>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

ie31200_edac: Allocate mci and map mchbar first

Check for memory allocation and mchbar mapping failures before
initializing the dimm info tables needlessly.

Signed-off-by: Jason Baron <jbaron@akamai.com>
Suggested-by: Borislav Petkov <bp@suse.de>
Link: http://lkml.kernel.org/r/ead8f53e699f1ce21c2e17f3cffb4685d4faf72a.1404939455.git.jbaron@akamai.com
Signed-off-by: Borislav Petkov <bp@suse.de>

ie31200_edac: Introduce the driver

Add a driver for the E3-1200 series of Intel DRAM controllers, based on
the following E3-1200 specs:

http://www.intel.com/content/www/us/en/processors/xeon/xeon-e3-1200-family-vol-2-datasheet.html
http://www.intel.com/content/www/us/en/processors/xeon/xeon-e3-1200v3-vol-2-datasheet.html

I've tested this on bad memory hardware, and observed correlating bad
reads and uncorrected memory errors as reported by the driver.

Tested against:

CPU E3-1270 v3 @ 3.50GHz : 8086:0c08 (haswell)
CPU E3-1270 V2 @ 3.50GHz : 8086:0158 (ivy bridge)
CPU E31270 @ 3.40GHz : 8086:0108 (sandy bridge)

Signed-off-by: Jason Baron <jbaron@akamai.com>
Link: http://lkml.kernel.org/r/95c83e80dd40b5377e8bb206285c5d95ac623872.1403818526.git.jbaron@akamai.com
[ Boris: realign defines ]
Signed-off-by: Borislav Petkov <bp@suse.de>