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[RFC,0/2] EDAC/ghes: Add EDAC device for recording the CPU error count

Message ID 20201208172959.1249-1-shiju.jose@huawei.com
Headers show
Series EDAC/ghes: Add EDAC device for recording the CPU error count | expand

Message

Shiju Jose Dec. 8, 2020, 5:29 p.m. UTC 
For the firmware-first error handling on ARM64 hardware platforms,
CPU cache corrected error count is not recorded.
Create an CPU EDAC device and device blocks for the CPU caches
for this purpose. The EDAC device blocks are created based on the
cache information from the cpu_cacheinfo.

User-space application could monitor the recorded corrected error
count for the predictive failure analysis.

More information in the patch headers.

Shiju Jose (2):
  EDAC/ghes: Add EDAC device for the CPU caches
  ACPI / APEI: Add reporting ARM64 CPU cache corrected error count

 Documentation/ABI/testing/sysfs-devices-edac |  15 ++
 drivers/acpi/apei/ghes.c                     |  76 ++++++++-
 drivers/edac/Kconfig                         |  10 ++
 drivers/edac/ghes_edac.c                     | 171 +++++++++++++++++++
 include/acpi/ghes.h                          |  27 +++
 include/linux/cper.h                         |   4 +
 6 files changed, 299 insertions(+), 4 deletions(-)

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2.17.1