Changes in sysfs-edac-memory-repair

bbfd5594756011167b8f8de9a00e0c946afda1e6 - Merge drm/drm-next into drm-intel-gt-next

Wed, 28 May 2025 09:20:17 +0200

Merge drm/drm-next into drm-intel-gt-nextNeed to pull in a67221b5eb8d ("drm/i915/dp: Return min bpc supported by source instead of 0")in order to fix build breakage on GCC 9.4.0 (from Ubuntu 20.04).Signed-off-by: Joonas Lahtinen List of files: /linux/Documentation/ABI/testing/sysfs-edac-memory-repair

db5302ae571beec635c1a96e7f72926a4e65195e - Merge drm/drm-next into drm-intel-next

Fri, 16 May 2025 09:22:36 +0200

Merge drm/drm-next into drm-intel-nextBackmerge to sync with v6.15-rc, xe, and specifically async flip changesin drm-misc.Signed-off-by: Jani Nikula List of files: /linux/Documentation/ABI/testing/sysfs-edac-memory-repair

4f9786035f9e519db41375818e1d0b5f20da2f10 - Merge branch 'next' into for-linus

Mon, 02 Jun 2025 06:41:07 +0200

Merge branch 'next' into for-linusPrepare input updates for 6.16 merge window. List of files: /linux/Documentation/ABI/testing/sysfs-edac-memory-repair

d51b9d81f7883f526b26e3ab903e646274aebeb1 - Merge tag 'v6.15-rc6' into next

Fri, 16 May 2025 01:20:39 +0200

Merge tag 'v6.15-rc6' into nextSync up with mainline to bring in xpad controller changes. List of files: /linux/Documentation/ABI/testing/sysfs-edac-memory-repair

844e31bbaef7c8a6ff2c0fbac45c0c85b5484482 - Merge remote-tracking branch 'drm-misc/drm-misc-next' into msm-next

Tue, 29 Apr 2025 22:42:29 +0200

Merge remote-tracking branch 'drm-misc/drm-misc-next' into msm-nextMerge drm-misc-next to get commit Fixes: fec450ca15af ("drm/display:hdmi: provide central data authority for ACR params").Signed-off-by: Rob Clark List of files: /linux/Documentation/ABI/testing/sysfs-edac-memory-repair

3ab7ae8e07f888f223027f0ef84d33e43919ad55 - Merge drm/drm-next into drm-xe-next

Thu, 24 Apr 2025 13:34:55 +0200

Merge drm/drm-next into drm-xe-nextBackmerge to bring in linux 6.15-rc.Signed-off-by: Thomas Hellström List of files: /linux/Documentation/ABI/testing/sysfs-edac-memory-repair

1afba39f9305fe4061a4e70baa6ebab9d41459da - Merge drm/drm-next into drm-misc-next

Mon, 07 Apr 2025 13:47:40 +0200

Merge drm/drm-next into drm-misc-nextBackmerging to get v6.15-rc1 into drm-misc-next. Also fixes abuild issue when enabling CONFIG_DRM_SCHED_KUNIT_TEST.Signed-off-by: Thomas Zimmermann List of files: /linux/Documentation/ABI/testing/sysfs-edac-memory-repair

9f13acb2406a3aed90c6738b3a2f1c0e43118cbd - Merge tag 'v6.15-rc1' into x86/cpu, to refresh the branch with upstream changes

Fri, 11 Apr 2025 11:13:27 +0200

Merge tag 'v6.15-rc1' into x86/cpu, to refresh the branch with upstream changesSigned-off-by: Ingo Molnar List of files: /linux/Documentation/ABI/testing/sysfs-edac-memory-repair

6ce0fdaae043803bb324d915ce0fe43316bf1e81 - Merge tag 'v6.15-rc1' into x86/asm, to refresh the branch

Wed, 09 Apr 2025 21:39:43 +0200

Merge tag 'v6.15-rc1' into x86/asm, to refresh the branchSigned-off-by: Ingo Molnar List of files: /linux/Documentation/ABI/testing/sysfs-edac-memory-repair

1260ed77798502de9c98020040d2995008de10cc - Merge drm/drm-fixes into drm-misc-fixes

Tue, 08 Apr 2025 10:15:47 +0200

Merge drm/drm-fixes into drm-misc-fixesBackmerging to get updates from v6.15-rc1.Signed-off-by: Thomas Zimmermann List of files: /linux/Documentation/ABI/testing/sysfs-edac-memory-repair

ae8371a46e59d768a5540a237309962b50b8bec7 - Merge tag 'edac_updates_for_v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras

Tue, 25 Mar 2025 22:00:26 +0100

Merge tag 'edac_updates_for_v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/rasPull EDAC updates from Borislav Petkov: - Add infrastructure support to EDAC in order to be able to register memory scrubbing RAS functionality with the kernel and expose sysfs nodes to control such scrubbing functionality. The main use case is CXL devices which provide different scrubbers for their built-in memories so that tools like rasdaemon can configure and control memory scrubbing and other, more advanced RAS functionality (Shiju Jose and Jonathan Cameron) - Add support to ie31200_edac for client SoCs like Raptor Lake-S which have multiple memory controllers and out-of-band ECC capability (Qiuxu Zhuo) - The usual round of cleanups, simplifications and fixlets* tag 'edac_updates_for_v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras: (25 commits) MAINTAINERS: Add a secondary maintainer for bluefield_edac EDAC/ie31200: Switch Raptor Lake-S to interrupt mode EDAC/ie31200: Add Intel Raptor Lake-S SoCs support EDAC/ie31200: Break up ie31200_probe1() EDAC/ie31200: Fold the two channel loops into one loop EDAC/ie31200: Make struct dimm_data contain decoded information EDAC/ie31200: Make the memory controller resources configurable EDAC/ie31200: Simplify the pci_device_id table EDAC/ie31200: Fix the 3rd parameter name of *populate_dimm_info() EDAC/ie31200: Fix the error path order of ie31200_init() EDAC/ie31200: Fix the DIMM size mask for several SoCs EDAC/ie31200: Fix the size of EDAC_MC_LAYER_CHIP_SELECT layer EDAC/device: Fix dev_set_name() format string EDAC/pnd2: Make read-only const array intlv static EDAC/igen6: Constify struct res_config EDAC/amd64: Simplify return statement in dct_ecc_enabled() EDAC: Update memory repair control interface for memory sparing feature EDAC: Add a memory repair control feature EDAC: Use string choice helper functions EDAC: Add a Error Check Scrub control feature ... List of files: /linux/Documentation/ABI/testing/sysfs-edac-memory-repair

81e42fc1d3036efd45f66c03a79654fef00ef380 - EDAC: Update memory repair control interface for memory sparing feature

Mon, 24 Feb 2025 12:13:40 +0100

EDAC: Update memory repair control interface for memory sparing featureUpdate memory repair control interface for memory sparing feature.CXL memory devices can support soft and hard memory sparing at cacheline,row, bank and rank granularities. Memory sparing is defined as a repairfunction that replaces a portion of memory with a portion of functionalmemory at that same granularity.When a CXL device detects an error in memory, it will report to the hostthat there's need for a repair maintenance operation by using an eventrecord where the "maintenance needed" flag is set.The event records contain the device physical address (DPA) and otherattributes of the memory to repair such as bank group, bank, rank, row,column, channel etc.The kernel will report the corresponding CXL general media or DRAM traceevent to userspace, and userspace tools (e.g. rasdaemon) will initiatea repair operation in response to the device request via the sysfsrepair control. [ bp: Massage. ]Signed-off-by: Shiju Jose Signed-off-by: Borislav Petkov (AMD) Link: https://lore.kernel.org/r/20250212143654.1893-15-shiju.jose@huawei.com List of files: /linux/Documentation/ABI/testing/sysfs-edac-memory-repair

699ea5219c4b1d9d8819eb2d99e51a3fdb7b1d7b - EDAC: Add a memory repair control feature

Wed, 12 Feb 2025 15:36:42 +0100

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/Documentation/ABI/testing/sysfs-edac-memory-repair