linux-stable.git/drivers/rpmsg/Kconfig, branch linux-4.9.y

rpmsg: smd: fix dependency on QCOM_SMD=n

2016-09-12T14:05:13+00:00

The ARM allmodconfig build broke with the addition of the SMD rpmsg
driver that conflicts with the driver its replaces:

WARNING: drivers/soc/qcom/smd: 'qcom_smd_register_edge' exported twice. Previous export was in drivers/rpmsg/qcom_smd.ko
WARNING: drivers/soc/qcom/smd: 'qcom_smd_unregister_edge' exported twice. Previous export was in drivers/rpmsg/qcom_smd.ko

There is already a dependency that is meant to avoid the broken
configuration, but that only prevents the case where at least
one of the two are built-in, but not if both are modules.

This changes the dependency to "=n", to ensure that the new driver
can only be enabled if the other one is completely disabled.

Signed-off-by: Arnd Bergmann 
Fixes: 53e2822e56c7 ("rpmsg: Introduce Qualcomm SMD backend")
Signed-off-by: Bjorn Andersson

rpmsg: Introduce Qualcomm SMD backend

2016-09-09T05:15:26+00:00

This introduces a new rpmsg backend for the Qualcomm SMD system,
allowing communication with various remote processors found in Qualcomm
platforms. The implementation is based on, and intends to replace,
drivers/soc/qcom/smd.c with the necessary adaptions for fitting with the
rpmsg core.

Based on original work by Sricharan R 

Cc: Sricharan R 
Signed-off-by: Bjorn Andersson

rpmsg: Move rpmsg_device API to new file

2016-09-09T05:15:21+00:00

Extract the now indirect rpmsg_create_ept() interface to a separate
file and start building up a rpmsg core.

Signed-off-by: Bjorn Andersson

rpmsg: fix kconfig dependencies for VIRTIO

2013-04-21T13:32:29+00:00

Fix this:
warning: (VIRTIO_PCI && VIRTIO_MMIO && REMOTEPROC && RPMSG) selects VIRTIO which has unmet direct dependencies (VIRTUALIZATION)

Cc: stable@vger.kernel.org
Signed-off-by: Suman Anna 
[edit commit log]
Signed-off-by: Ohad Ben-Cohen

drivers/rpmsg: remove depends on CONFIG_EXPERIMENTAL

2013-01-11T19:39:03+00:00

The CONFIG_EXPERIMENTAL config item has not carried much meaning for a
while now and is almost always enabled by default. As agreed during the
Linux kernel summit, remove it from any "depends on" lines in Kconfigs.

CC: Ohad Ben-Cohen 
CC: Rusty Russell 
Signed-off-by: Kees Cook 
Acked-by: Rusty Russell

virtio: remove CONFIG_VIRTIO_RING

2012-09-28T05:35:15+00:00

Everyone who selects VIRTIO is also made to select VIRTIO_RING; just make
them synonymous, since we removed the indirection layer some time ago.

Signed-off-by: Rusty Russell

rpmsg: depend on EXPERIMENTAL

2012-02-22T16:28:43+00:00

There isn't any binary change in sight or evidence of any stability
issue, but as we just begin to get traction we can't rule them out
completely.

To be on the safe side, let's mark rpmsg as EXPERIMENTAL, and remove
it later on after we have several happy users.

Signed-off-by: Ohad Ben-Cohen 
Cc: Stephen Boyd 
Cc: Rob Clark 
Cc: Mark Grosen 
Cc: Ludovic BARRE

rpmsg: add Kconfig menu

2012-02-08T20:54:49+00:00

Add a dedicated Kconfig menu for the rpmsg drivers, so they
don't show up in the main driver menu.

Signed-off-by: Ohad Ben-Cohen

rpmsg: add virtio-based remote processor messaging bus

2012-02-08T20:53:58+00:00

Add a virtio-based inter-processor communication bus, which enables
kernel drivers to communicate with entities, running on remote
processors, over shared memory using a simple messaging protocol.

Every pair of AMP processors share two vrings, which are used to send
and receive the messages over shared memory.

The header of every message sent on the rpmsg bus contains src and dst
addresses, which make it possible to multiplex several rpmsg channels on
the same vring.

Every rpmsg channel is a device on this bus. When a channel is added,
and an appropriate rpmsg driver is found and probed, it is also assigned
a local rpmsg address, which is then bound to the driver's callback.

When inbound messages carry the local address of a bound driver,
its callback is invoked by the bus.

This patch provides a kernel interface only; user space interfaces
will be later exposed by kernel users of this rpmsg bus.

Designed with Brian Swetland .

Signed-off-by: Ohad Ben-Cohen 
Acked-by: Rusty Russell  (virtio_ids.h)
Cc: Brian Swetland 
Cc: Arnd Bergmann 
Cc: Grant Likely 
Cc: Tony Lindgren 
Cc: Russell King 
Cc: Andrew Morton 
Cc: Greg KH 
Cc: Stephen Boyd