linux-toradex.git/drivers/edac/a72_edac.c, branch v7.0-rc2 Linux kernel for Apalis and Colibri modules EDAC: Add EDAC driver for ARM Cortex A72 cores 2025-08-15T21:37:00+00:00 Sascha Hauer s.hauer@pengutronix.de 2025-07-17T01:06:29+00:00 fb13ae067ad7f07df2bdc374aa911ff58dfd19ce 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 
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