CONFIG_CXL_EDAC_MEM_REPAIR: Enable CXL Memory Repair

General informations

The Linux kernel configuration item CONFIG_CXL_EDAC_MEM_REPAIR:

• prompt: Enable CXL Memory Repair
• type: bool
• depends on: ( CONFIG_CXL_EDAC_MEM_FEATURES ) && ( CONFIG_EDAC_MEM_REPAIR )
• defined in drivers/cxl/Kconfig
• found in Linux kernels: 6.16-rc+HEAD

Help text

The CXL EDAC memory repair control is optional and allows host to control the memory repair features (e.g. sparing, PPR) configurations of CXL memory expander devices.

When enabled, the memory repair feature requires an additional memory of approximately 43KB to store CXL DRAM and CXL general media event records.

When enabled 'cxl_mem' EDAC devices are published with memory repair control attributes as described by Documentation/ABI/testing/sysfs-edac-memory-repair.

Say 'y' if you have an expert need to change default settings of a memory repair feature established by the platform/device. Otherwise say 'n'.

Hardware

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The data is retrived from:

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• Linux Kernel Driver DataBase (LKDDb)

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