[v5,0/2] Add L1 and L2 error detection for A53 and A57

Message

Sascha Hauer April 1, 2021, 11:06 a.m. UTC

Hi,

Resending this mainly because Marc Zyngier and Mark Rutland raised
concerns about using implementation defined registers and I forgot to Cc
them with the last version. This version, like v4 already, should fix
these concerns. Looking forward to feedback.

Sascha

Changes since v4:
- Rebase on v5.12-rc5

Changes since v3:
- Add edac-enabled property to make EDAC support optional

Changes since v2:
- drop usage of virtual dt node (Robh)
- use read_sysreg_s instead of open coded variant (James Morse)
- separate error retrieving from error reporting
- use smp_call_function_single rather than smp_call_function_single_async
- make driver single instance and register all 'cpu' hierarchy up front once

Changes since v1:
- Split dt-binding into separate patch
- Sort local function variables in reverse-xmas tree order
- drop unnecessary comparison and make variable bool

Sascha Hauer (2):
  drivers/edac: Add L1 and L2 error detection for A53 and A57
  dt-bindings: arm: cpus: Add edac-enabled property

 .../devicetree/bindings/arm/cpus.yaml         |   6 +
 drivers/edac/Kconfig                          |   6 +
 drivers/edac/Makefile                         |   1 +
 drivers/edac/cortex_arm64_l1_l2.c             | 221 ++++++++++++++++++
 4 files changed, 234 insertions(+)
 create mode 100644 drivers/edac/cortex_arm64_l1_l2.c