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Diffstat (limited to 'Documentation/ABI/testing/sysfs-class-remoteproc')
-rw-r--r-- | Documentation/ABI/testing/sysfs-class-remoteproc | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-remoteproc b/Documentation/ABI/testing/sysfs-class-remoteproc index 36094fbeb974..066b9b6f4924 100644 --- a/Documentation/ABI/testing/sysfs-class-remoteproc +++ b/Documentation/ABI/testing/sysfs-class-remoteproc @@ -58,3 +58,47 @@ Description: Remote processor name Reports the name of the remote processor. This can be used by userspace in exactly identifying a remote processor and ease up the usage in modifying the 'firmware' or 'state' files. + +What: /sys/class/remoteproc/.../coredump +Date: July 2020 +Contact: Bjorn Andersson <bjorn.andersson@linaro.org>, Ohad Ben-Cohen <ohad@wizery.com> +Description: Remote processor coredump configuration + + Reports the coredump configuration of the remote processor, + which will be one of: + + "disabled" + "enabled" + "inline" + + "disabled" means no dump will be collected. + + "enabled" means when the remote processor's coredump is + collected it will be copied to a separate buffer and that + buffer is exposed to userspace. + + "inline" means when the remote processor's coredump is + collected userspace will directly read from the remote + processor's device memory. Extra buffer will not be used to + copy the dump. Also recovery process will not proceed until + all data is read by usersapce. + +What: /sys/class/remoteproc/.../recovery +Date: July 2020 +Contact: Bjorn Andersson <bjorn.andersson@linaro.org>, Ohad Ben-Cohen <ohad@wizery.com> +Description: Remote processor recovery mechanism + + Reports the recovery mechanism of the remote processor, + which will be one of: + + "enabled" + "disabled" + + "enabled" means, the remote processor will be automatically + recovered whenever it crashes. Moreover, if the remote + processor crashes while recovery is disabled, it will + be automatically recovered too as soon as recovery is enabled. + + "disabled" means, a remote processor will remain in a crashed + state if it crashes. This is useful for debugging purposes; + without it, debugging a crash is substantially harder. |