Changes in Kconfig

a5db1b29 - EDAC/ie31200: Switch Raptor Lake-S to interrupt mode

Mon, 10 Mar 2025 01:14:11 +0000

EDAC/ie31200: Switch Raptor Lake-S to interrupt modeRaptor Lake-S SoCs notify correctable memory errors via CMCI (CorrectedMachine Check Interrupt). Switch Raptor Lake-S EDAC support from pollingto interrupt mode by registering the callback to the MCE decode notifierchain.Note that as Raptor Lake-S SoCs may not recover from uncorrectable memoryerrors, the system will hang as soon as this type of error occurs, and theregistered callback on the MCE decode chain will not be executed. This isthe expected behavior.Signed-off-by: Qiuxu Zhuo Signed-off-by: Tony Luck Tested-by: Gary Wang Link: https://lore.kernel.org/r/20250310011411.31685-12-qiuxu.zhuo@intel.com List of files: /linux-6.15/drivers/edac/Kconfig

699ea521 - EDAC: Add a memory repair control feature

Wed, 12 Feb 2025 14:36:42 +0000

EDAC: Add a memory repair control featureAdd a generic EDAC memory repair control driver to manage memory repairs inthe system, such as CXL Post Package Repair (PPR) and other soft and hard PPRfeatures.For example, a CXL device with DRAM components that support PPR features mayimplement PPR maintenance operations. DRAM components may support two types ofPPR: - hard PPR, for a permanent row repair, and - soft PPR, for a temporary row repair.Soft PPR is much faster than hard PPR, but the repair is lost with a powercycle.When a CXL device detects an error in a memory, it may report the need fora repair maintenance operation by using an event record where the "maintenanceneeded" flag is set. The event records contain the device physicaladdress (DPA) and other optional attributes of the memory to repair.The kernel will report the corresponding CXL general media or DRAM trace eventto userspace, and userspace tools (e.g. rasdaemon) will initiate a repairoperation in response to the device request via the sysfs repair control.Device with memory repair features registers with EDAC device driver, whichretrieves a memory repair descriptor from EDAC memory repair driver and exposesthe sysfs repair control attributes to userspace in /sys/bus/edac/devices//mem_repairX/.The common memory repair control interface abstracts the control of arbitrarymemory repair functionality into a standardized set of functions. The sysfsmemory repair attribute nodes are only available if the client driver hasimplemented the corresponding attribute callback function and providedoperations to the EDAC device driver during registration. [ bp: Massage, fixup edac_dev_register() retvals, merge write_overflow fix to mem_repair_create_desc() ]Signed-off-by: Shiju Jose Signed-off-by: Borislav Petkov (AMD) Link: https://lore.kernel.org/r/20250212143654.1893-5-shiju.jose@huawei.com List of files: /linux-6.15/drivers/edac/Kconfig

bcbd069b - EDAC: Add a Error Check Scrub control feature

Wed, 12 Feb 2025 14:36:41 +0000

EDAC: Add a Error Check Scrub control featureAdd an Error Check Scrub (ECS) control to manage a memory device's ECSfeature.The ECS is a feature defined in JEDEC DDR5 SDRAM Specification (JESD79-5) andallows the DRAM to internally read, correct single-bit errors, and write backcorrected data bits to the DRAM array while providing transparency to errorcounts.The DDR5 device contains a number of memory media Field Replaceable Units(FRU) per device. The DDR5 ECS feature and thus the ECS control driversupports configuring the ECS parameters per FRU.Memory devices support the ECS feature register with the EDAC device driver,which retrieves the ECS descriptor from the EDAC ECS driver. This driverexposes sysfs ECS control attributes to userspace via /sys/bus/edac/devices//ecs_fruX/.The common sysfs ECS control interface abstracts the control of an arbitraryECS functionality to a common set of functions.Support for the ECS feature is added separately because the control attributesof the DDR5 ECS feature differ from those of the scrub feature.The sysfs ECS attribute nodes are only present if the client driver hasimplemented the corresponding attribute callback function and passed thenecessary operations to the EDAC RAS feature driver during registration. [ bp: Massage, fixup edac_dev_register() retvals. ]Co-developed-by: Jonathan Cameron Signed-off-by: Jonathan Cameron Signed-off-by: Shiju Jose Signed-off-by: Borislav Petkov (AMD) Reviewed-by: Fan Ni Tested-by: Fan Ni Link: https://lore.kernel.org/r/20250212143654.1893-4-shiju.jose@huawei.com List of files: /linux-6.15/drivers/edac/Kconfig

f90b7381 - EDAC: Add scrub control feature

Wed, 12 Feb 2025 14:36:40 +0000

EDAC: Add scrub control featureAdd a scrub control to manage memory scrubbers in the system.Devices with a scrub feature register with the EDAC device driver whichretrieves the scrub descriptor from the scrub driver and exposes thecontrol attributes for a instance to userspace at /sys/bus/edac/devices//scrubX/.The common sysfs scrub control interface abstracts the control ofarbitrary scrubbing functionality into a common set of functions. Theattribute nodes are only present if the client driver has implementedthe corresponding attribute callback function and passed the operationsto the device driver during registration. [ bp: Massage commit message, docs and code, simplify text a bit. Integrate fixup for: https://lore.kernel.org/r/202502251009.0sGkolEJ-lkp@intel.com Reported-by: kernel test robot Reported-by: Dan Carpenter ]Co-developed-by: Jonathan Cameron Signed-off-by: Jonathan Cameron Signed-off-by: Shiju Jose Signed-off-by: Borislav Petkov (AMD) Tested-by: Daniel Ferguson Tested-by: Fan Ni Link: https://lore.kernel.org/r/20250212143654.1893-3-shiju.jose@huawei.com List of files: /linux-6.15/drivers/edac/Kconfig

6696037a - EDAC/cell: Remove powerpc Cell driver

Wed, 18 Dec 2024 10:55:11 +0000

EDAC/cell: Remove powerpc Cell driverThis driver can no longer be built since support for IBM Cell Blades wasremoved, in particular PPC_CELL_COMMON.Remove the driver. [ bp: Remove EDAC_CELL from Cell's defconfig too. ]Signed-off-by: Michael Ellerman Signed-off-by: Borislav Petkov (AMD) Link: https://lore.kernel.org/r/20241218105523.416573-23-mpe@ellerman.id.au List of files: /linux-6.15/drivers/edac/Kconfig

d6caeafa - x86/amd_nb: Move SMN access code to a new amd_node driver

Fri, 06 Dec 2024 16:12:03 +0000

x86/amd_nb: Move SMN access code to a new amd_node driverSMN access was bolted into amd_nb mostly as convenience. This haslimitations though that require incurring tech debt to keep it working.Move SMN access to the newly introduced AMD Node driver.Signed-off-by: Mario Limonciello Signed-off-by: Yazen Ghannam Signed-off-by: Borislav Petkov (AMD) Acked-by: Ilpo Järvinen # pdx86Acked-by: Shyam Sundar S K # PMF, PMCLink: https://lore.kernel.org/r/20241206161210.163701-11-yazen.ghannam@amd.com List of files: /linux-6.15/drivers/edac/Kconfig

558aff7a - EDAC: Add an EDAC driver for the Loongson memory controller

Thu, 19 Dec 2024 12:48:46 +0000

EDAC: Add an EDAC driver for the Loongson memory controllerAdd ECC support for Loongson SoC DDR controller. This driver reports singlebit errors (CE) only.Only ACPI firmware is supported. [ bp: Document what last_ce_count is for. ]Signed-off-by: Zhao Qunqin Signed-off-by: Borislav Petkov (AMD) Reviewed-by: Huacai Chen Link: https://lore.kernel.org/r/20241219124846.1876-1-zhaoqunqin@loongson.cnSigned-off-by: Borislav Petkov (AMD) List of files: /linux-6.15/drivers/edac/Kconfig

3c592ce7 - EDAC/powerpc: Remove PPC_MAPLE drivers

Tue, 12 Nov 2024 08:41:34 +0000

EDAC/powerpc: Remove PPC_MAPLE driversThese two drivers are only buildable for the powerpc "maple" platform(CONFIG_PPC_MAPLE), which has now been removed, seecommit 62f8f307c80e ("powerpc/64: Remove maple platform").Remove the drivers.Acked-by: Borislav Petkov (AMD) Signed-off-by: Michael Ellerman Link: https://patch.msgid.link/20241112084134.411964-1-mpe@ellerman.id.au List of files: /linux-6.15/drivers/edac/Kconfig

a5f285d9 - EDAC: Drop obsolete PPC4xx driver

Wed, 04 Sep 2024 19:22:22 +0000

EDAC: Drop obsolete PPC4xx driverSince 47d13a269bbd ("powerpc/40x: Remove 40x platforms.")support for PPC40x platforms has been removed. While the EDAC driver alsomentions PPC440 and PPC460 processors, the driver refuses to probe on anythingother than PPC405. It's unlikely support will ever be added at this point forthese other old platforms, so the driver can be removed.Signed-off-by: Rob Herring (Arm) Signed-off-by: Borislav Petkov (AMD) Acked-by: Michael Ellerman (powerpc)Link: https://lore.kernel.org/r/20240904192224.3060307-2-robh@kernel.org List of files: /linux-6.15/drivers/edac/Kconfig

6c9058f4 - EDAC/amd64: Use new AMD Address Translation Library

Tue, 23 Jan 2024 04:14:00 +0000

EDAC/amd64: Use new AMD Address Translation LibraryRemove old address translation code and use the new AMD AddressTranslation Library.Use "imply" in Kconfig so that the "AMD_ATL" config option takes thevalue of "EDAC_AMD64" as its default.Signed-off-by: Yazen Ghannam Signed-off-by: Borislav Petkov (AMD) Link: https://lore.kernel.org/r/20240123041401.79812-3-yazen.ghannam@amd.com List of files: /linux-6.15/drivers/edac/Kconfig

6f15b178 - EDAC/versal: Add a Xilinx Versal memory controller driver

Thu, 05 Oct 2023 10:12:42 +0000

EDAC/versal: Add a Xilinx Versal memory controller driverAdd a EDAC driver for the RAS capabilities on the Xilinx integrated DDRMemory Controllers (DDRMCs) which support both DDR4 and LPDDR4/4X memoryinterfaces. It has four programmable Network-on-Chip (NoC) interfaceports and is designed to handle multiple streams of traffic. The driverreports correctable and uncorrectable errors, and also creates debugfsentries for testing through error injection. [ bp: - Add a pointer to the documentation about the register unlock code. - Squash in a fix for a Smatch static checker issue as reported by Dan Carpenter: https://lore.kernel.org/r/a4db6f93-8e5f-4d55-a7b8-b5a987d48a58@moroto.mountain ]Co-developed-by: Sai Krishna Potthuri Signed-off-by: Sai Krishna Potthuri Signed-off-by: Shubhrajyoti Datta Signed-off-by: Borislav Petkov (AMD) Link: https://lore.kernel.org/r/20231005101242.14621-3-shubhrajyoti.datta@amd.com List of files: /linux-6.15/drivers/edac/Kconfig

d244c610 - EDAC/npcm: Add NPCM memory controller driver

Wed, 11 Jan 2023 09:32:45 +0000

EDAC/npcm: Add NPCM memory controller driverAdd driver for memory controller present on Nuvoton NPCM SoCs. Thememory controller supports single bit error correction and double biterror detection.Signed-off-by: Marvin Lin Signed-off-by: Borislav Petkov (AMD) Link: https://lore.kernel.org/r/20230111093245.318745-4-milkfafa@gmail.com List of files: /linux-6.15/drivers/edac/Kconfig

3bd2706c - EDAC/zynqmp: Add EDAC support for Xilinx ZynqMP OCM

Wed, 04 Jan 2023 08:45:12 +0000

EDAC/zynqmp: Add EDAC support for Xilinx ZynqMP OCMAdd EDAC support for Xilinx ZynqMP OCM Controller, so this driver reports CE andUE errors upon interrupt generation. Also add debugfs files for error injection.On Xilinx ZynqMP platform, both OCM Controller driver(zynqmp_edac) and DDRMemory Controller driver(synopsys_edac) co-exist which means both can be loadedat a time. This scenario is tested on Xilinx ZynqMP platform.Fix following issue reported by the robot: "MAINTAINERS references a file that doesn't exist: Documentation/devicetree/bindings/edac/xlnx,zynqmp-ocmc.yaml" [ bp: - Massage commit message - s/EDAC_ZYNQMP_OCM/EDAC_ZYNQMP/ - Touchups ]Reported-by: kernel test robot Co-developed-by: Shubhrajyoti Datta Signed-off-by: Shubhrajyoti Datta Signed-off-by: Sai Krishna Potthuri Signed-off-by: Borislav Petkov (AMD) Link: https://lore.kernel.org/r/20230104084512.1855243-3-sai.krishna.potthuri@amd.com List of files: /linux-6.15/drivers/edac/Kconfig

802e7f1d - EDAC/ghes: Make ghes_edac a proper module

Mon, 10 Oct 2022 02:35:56 +0000

EDAC/ghes: Make ghes_edac a proper moduleCommit dc4e8c07e9e2 ("ACPI: APEI: explicit init of HEST and GHES in apci_init()")introduced a bug leading to ghes_edac_register() to be invoked beforeedac_init(). Because at that time the bus "edac" hadn't been evenregistered, this created sysfs nodes as /devices/mc0 instead of/sys/devices/system/edac/mc/mc0 on an Ampere eMag server.Fix this by turning ghes_edac into a proper module.The list of GHES devices returned is not protected from being modifiedconcurrently but it is pretty static as it gets created only during GHESinit and latter is not a module so... [ bp: Massage. ]Fixes: dc4e8c07e9e2 ("ACPI: APEI: explicit init of HEST and GHES in apci_init()")Co-developed-by: Borislav Petkov Signed-off-by: Borislav Petkov Signed-off-by: Jia He Signed-off-by: Borislav Petkov Link: https://lore.kernel.org/r/20221010023559.69655-5-justin.he@arm.com List of files: /linux-6.15/drivers/edac/Kconfig

75564191 - EDAC/i5000: Mark as BROKEN

Wed, 28 Sep 2022 12:48:15 +0000

EDAC/i5000: Mark as BROKENi5000_edac supports very old hardware which isn't available and it'sbeen broken for single/dual channel for many years without anyonenoticing. Marking as BROKEN.Signed-off-by: Aristeu Rozanski Signed-off-by: Borislav Petkov Link: https://lore.kernel.org/r/20220921181009.oxytvicy6sry6it7@redhat.com List of files: /linux-6.15/drivers/edac/Kconfig

ca120a79 - soc: sifive: ccache: Rename SiFive L2 cache to Composable cache.

Tue, 13 Sep 2022 06:18:12 +0000

soc: sifive: ccache: Rename SiFive L2 cache to Composable cache.Since composable cache may be L3 cache if there is a L2 cache, we shoulduse its original name composable cache to prevent confusion.There are some new lines were generated due to adding the compatible"sifive,ccache0" into ID table and indent requirement.The sifive L2 has been renamed to sifive CCACHE, EDAC driver needs toapply the change as well.Signed-off-by: Greentime Hu Signed-off-by: Zong Li Co-developed-by: Zong Li Reviewed-by: Conor Dooley Link: https://lore.kernel.org/r/20220913061817.22564-3-zong.li@sifive.comSigned-off-by: Palmer Dabbelt List of files: /linux-6.15/drivers/edac/Kconfig

7b2db704 - EDAC, pnd2: convert to use common P2SB accessor

Mon, 06 Jun 2022 16:41:34 +0000

EDAC, pnd2: convert to use common P2SB accessorSince we have a common P2SB accessor in tree we may use it instead ofopen coded variants.Replace custom code by p2sb_bar() call.Signed-off-by: Andy Shevchenko Tested-by: Henning Schild Reviewed-by: Tony Luck Signed-off-by: Lee Jones List of files: /linux-6.15/drivers/edac/Kconfig

5297ecfe - EDAC/synopsys: Add driver support for i.MX platforms

Thu, 28 Apr 2022 02:32:09 +0000

EDAC/synopsys: Add driver support for i.MX platformsi.MX8MP use Synopsys v3.70a DDR controller IP so add support for it withthe Synopsys driver.Signed-off-by: Sherry Sun Signed-off-by: Borislav Petkov Acked-by: Michal Simek Link: https://lore.kernel.org/r/20220428023209.18087-1-sherry.sun@nxp.com List of files: /linux-6.15/drivers/edac/Kconfig

ed27b5df - EDAC/ghes: Unify CPER memory error location reporting

Tue, 08 Mar 2022 14:40:52 +0000

EDAC/ghes: Unify CPER memory error location reportingSwitch the GHES EDAC memory error reporting functions to use the commonCPER ones and get rid of code duplication. [ bp: - rewrite commit message, remove useless text - rip out useless reformatting - align function params on the opening brace - rename function to a more descriptive name - drop useless function exports - handle buffer lengths properly when printing other detail - remove useless casting ]Signed-off-by: Shuai Xue Signed-off-by: Borislav Petkov Link: https://lore.kernel.org/r/20220308144053.49090-3-xueshuai@linux.alibaba.com List of files: /linux-6.15/drivers/edac/Kconfig

f6bc0d8b - EDAC/synopsys: Enable the driver on Intel's N5X platform

Tue, 12 Oct 2021 19:07:08 +0000

EDAC/synopsys: Enable the driver on Intel's N5X platformIntel's N5X platform is also using the Synopsys EDAC controller.Signed-off-by: Dinh Nguyen Signed-off-by: Borislav Petkov Acked-by: Michal Simek Link: https://lkml.kernel.org/r/20211012190709.1504152-3-dinguyen@kernel.org List of files: /linux-6.15/drivers/edac/Kconfig