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authorLinus Torvalds <torvalds@linux-foundation.org>2012-10-04 09:11:57 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-04 09:11:57 -0700
commit4d6d367232813af09d9a1d90e3259e3ac42ee8a8 (patch)
treef8921106542eb5bac53f1ef5ac9fee46f1def42f /Documentation
parentd66e6737d454553e1e62109d8298ede5351178a4 (diff)
parentd09f53a735bae43806a77754312a45d3f1198342 (diff)
Merge tag 'remoteproc-for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc
Pull remoteproc update from Ohad Ben-Cohen: - Remoteproc Recovery - by Fernando Guzman Lugo When a remote processor crash is detected, this mechanism will remove all virtio children devices, wait until their drivers let go, hard reset the remote processor and reload the firmware (resulting in the relevant virtio children devices re-added). Essentially the entire software stack is reset, together with the relevant hardware, so users don't have to reset the entire phone. - STE Modem driver is added - by Sjur Brændeland - OMAP DSP boot address support is added - by Juan Gutierrez - A handful of fixes/cleanups - Sjur Brændeland, Dan Carpenter, Emil Goode * tag 'remoteproc-for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc: remoteproc: Fix use of format specifyer remoteproc: fix a potential NULL-dereference on cleanup remoteproc: select VIRTIO to avoid build breakage remoteproc: return -EFAULT on copy_from_user failure remoteproc: snprintf() can return more than was printed remoteproc: Add STE modem driver remtoteproc: maintain max notifyid remoteproc: create a 'recovery' debugfs entry remoteproc: add actual recovery implementation remoteproc: add rproc_report_crash function to notify rproc crashes remoteproc: Add dependency to HAS_DMA remoteproc/omap: set bootaddr support
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/remoteproc.txt7
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/remoteproc.txt b/Documentation/remoteproc.txt
index 23a09b884bc7..e6469fdcf89a 100644
--- a/Documentation/remoteproc.txt
+++ b/Documentation/remoteproc.txt
@@ -129,6 +129,13 @@ int dummy_rproc_example(struct rproc *my_rproc)
Returns 0 on success and -EINVAL if @rproc isn't valid.
+ void rproc_report_crash(struct rproc *rproc, enum rproc_crash_type type)
+ - Report a crash in a remoteproc
+ This function must be called every time a crash is detected by the
+ platform specific rproc implementation. This should not be called from a
+ non-remoteproc driver. This function can be called from atomic/interrupt
+ context.
+
5. Implementation callbacks
These callbacks should be provided by platform-specific remoteproc