diff options
| author | Sascha Hauer <s.hauer@pengutronix.de> | 2025-07-16 18:06:29 -0700 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2025-08-15 23:37:00 +0200 |
| commit | fb13ae067ad7f07df2bdc374aa911ff58dfd19ce (patch) | |
| tree | e53f1ed1953bdbaf9eb2a0b014faf5b4b4ecc437 /drivers/edac/Kconfig | |
| parent | 8f5ae30d69d7543eee0d70083daf4de8fe15d585 (diff) | |
EDAC: Add EDAC driver for ARM Cortex A72 cores
The driver is designed to support error detection and reporting for
Cortex A72 cores, specifically within their L1 and L2 cache systems.
The errors are detected by reading CPU/L2 memory error syndrome
registers.
Unfortunately there is no robust way to inject errors into the caches,
so this driver doesn't contain any code to actually test it. It has
been tested though with code taken from an older version [1] of this
driver. For reasons stated in thread [1], the error injection code is
not suitable for mainline, so it is removed from the driver.
[1] https://lore.kernel.org/all/1521073067-24348-1-git-send-email-york.sun@nxp.com/#t
[ bp: minor touchups. ]
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Co-developed-by: Vijay Balakrishna <vijayb@linux.microsoft.com>
Signed-off-by: Vijay Balakrishna <vijayb@linux.microsoft.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/1752714390-27389-2-git-send-email-vijayb@linux.microsoft.com
Diffstat (limited to 'drivers/edac/Kconfig')
| -rw-r--r-- | drivers/edac/Kconfig | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/edac/Kconfig b/drivers/edac/Kconfig index 19ad3c3b675d..b824472208c4 100644 --- a/drivers/edac/Kconfig +++ b/drivers/edac/Kconfig @@ -576,4 +576,12 @@ config EDAC_LOONGSON errors (CE) only. Loongson-3A5000/3C5000/3D5000/3A6000/3C6000 are compatible. +config EDAC_CORTEX_A72 + tristate "ARM Cortex A72" + depends on ARM64 + help + Support for L1/L2 cache error detection for ARM Cortex A72 processor. + The detected and reported errors are from reading CPU/L2 memory error + syndrome registers. + endif # EDAC |