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author | Ohad Ben-Cohen <ohad@wizery.com> | 2012-02-13 08:38:23 +0100 |
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committer | Ohad Ben-Cohen <ohad@wizery.com> | 2012-03-06 18:13:53 +0100 |
commit | 41a6ee09ee8dd7ac3a6ac12a24e26279b5d93385 (patch) | |
tree | 4bc89b62b0076ab23a848a5035bad0c4d524d816 /Documentation/remoteproc.txt | |
parent | remoteproc: remoteproc_rpmsg -> remoteproc_virtio (diff) | |
download | linux-41a6ee09ee8dd7ac3a6ac12a24e26279b5d93385.tar.xz linux-41a6ee09ee8dd7ac3a6ac12a24e26279b5d93385.zip |
remoteproc: safer boot/shutdown order
Boot the remote processor only after setting up the virtqueues,
and shut it down before deleting them.
Remote processors should obey virtio status changes, and
therefore not manipulate/trigger the virtqueues while the virtio
driver isn't ready, but it's just safer not to rely on that
(plus a vq access might already be inflight while a vdev
status is changed).
We also don't have yet status change notifications, but that's
a temporary limitation.
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Cc: Brian Swetland <swetland@google.com>
Cc: Iliyan Malchev <malchev@google.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Mark Grosen <mgrosen@ti.com>
Cc: John Williams <john.williams@petalogix.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Loic PALLARDY <loic.pallardy@stericsson.com>
Cc: Ludovic BARRE <ludovic.barre@stericsson.com>
Cc: Omar Ramirez Luna <omar.luna@linaro.org>
Cc: Guzman Lugo Fernando <fernando.lugo@ti.com>
Cc: Anna Suman <s-anna@ti.com>
Cc: Clark Rob <rob@ti.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Saravana Kannan <skannan@codeaurora.org>
Cc: David Brown <davidb@codeaurora.org>
Cc: Kieran Bingham <kieranbingham@gmail.com>
Cc: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'Documentation/remoteproc.txt')
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