From 2e37abb89a2ef13c524b0728bb9893f996a10b6b Mon Sep 17 00:00:00 2001 From: Fernando Guzman Lugo Date: Tue, 18 Sep 2012 12:26:35 +0300 Subject: remoteproc: create a 'recovery' debugfs entry Add a 'recovery' debugfs entry to dynamically disable/enable recovery at runtime. This is useful when one is trying to debug an rproc crash; without it, a recovery will immediately take place, making it harder to debug the crash. Contributions from Subramaniam Chanderashekarapuram. Examples: - disabling recovery: $ echo disabled > /remoteproc/remoteproc0/recovery - in case you want to recover a crash, but keep recovery disabled (useful in debugging sessions when you expect additional crashes you want to debug): $ echo recover > /remoteproc/remoteproc0/recovery - enabling recovery: $ echo enabled > /remoteproc/remoteproc0/recovery Signed-off-by: Fernando Guzman Lugo [ohad: some white space, commentary and commit log changes] Signed-off-by: Ohad Ben-Cohen --- include/linux/remoteproc.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux/remoteproc.h') diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h index 0c1a2f95be7..2ccc3fe2046 100644 --- a/include/linux/remoteproc.h +++ b/include/linux/remoteproc.h @@ -399,6 +399,7 @@ enum rproc_crash_type { * @crash_handler: workqueue for handling a crash * @crash_cnt: crash counter * @crash_comp: completion used to sync crash handler and the rproc reload + * @recovery_disabled: flag that state if recovery was disabled */ struct rproc { struct klist_node node; @@ -425,6 +426,7 @@ struct rproc { struct work_struct crash_handler; unsigned crash_cnt; struct completion crash_comp; + bool recovery_disabled; }; /* we currently support only two vrings per rvdev */ -- cgit v1.2.3