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| author | Rishabh Bhatnagar <rishabhb@codeaurora.org> | 2020-10-02 21:09:03 +0300 |
|---|---|---|
| committer | Bjorn Andersson <bjorn.andersson@linaro.org> | 2020-10-14 03:22:04 +0300 |
| commit | f75c6043a38b89d01dd9ccb0d9cd81c291e04b18 (patch) | |
| tree | 95d8484f15630c8d104e9af9a345d546ac21f12b /Documentation/ABI/testing | |
| parent | bf41a0910cb2dd06abd4d6a920edcee798460ad7 (diff) | |
| download | linux-f75c6043a38b89d01dd9ccb0d9cd81c291e04b18.tar.xz | |
remoteproc: Add coredump as part of sysfs interface
Add coredump as part of the sysfs interface. This will
allow usage of this configuration feature in production
devices where access to debugfs might be limited.
Signed-off-by: Rishabh Bhatnagar <rishabhb@codeaurora.org>
Link: https://lore.kernel.org/r/1601662144-5964-3-git-send-email-rishabhb@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Diffstat (limited to 'Documentation/ABI/testing')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-remoteproc | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-remoteproc b/Documentation/ABI/testing/sysfs-class-remoteproc index 36094fbeb974..050bd25aaa15 100644 --- a/Documentation/ABI/testing/sysfs-class-remoteproc +++ b/Documentation/ABI/testing/sysfs-class-remoteproc @@ -58,3 +58,27 @@ 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. |