dev_dbg() in rpmsg_probe() made use of the %x formatting that
expects an 'unsigned int' which dma_addr_t is not in cases where
dma_addr_t is 64-bit (CONFIG_ARCH_DMA_ADDR_T_64BIT). Casting to
a 'unsigned long long' and using %llx will avoid this.
Signed-off-by: Mark Asselstine <[email protected]>
CC: Ohad Ben-Cohen <[email protected]>
CC: Arnd Bergmann <[email protected]>
Signed-off-by: Ohad Ben-Cohen <[email protected]>
The name service endpoint wasn't destroyed, so fix it.
This is achieved by introducing an internal __rpmsg_destroy_ept
function which doesn't assume the given ept is bound to an rpmsg
channel (much like the existing __rpmsg_create_ept).
This is needed because the name service ept belongs to the rpmsg bus,
and is never bound with a specific rpdev.
Reported-by: Omar Ramirez Luna <[email protected]>
Signed-off-by: Ohad Ben-Cohen <[email protected]>
Cc: Grant Likely <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Mark Grosen <[email protected]>
Cc: Suman Anna <[email protected]>
Cc: Fernando Guzman Lugo <[email protected]>
Cc: Rob Clark <[email protected]>
Cc: Ludovic BARRE <[email protected]>
Cc: Loic PALLARDY <[email protected]>
Cc: Omar Ramirez Luna <[email protected]>
Since commit 7bb7aef2 "virtio: rename virtqueue_add_buf_gfp to virtqueue_add_buf",
virtqueue_add_buf_gfp is already rename to virtqueue_add_buf now.
This patch fixes below build error:
CC [M] drivers/rpmsg/virtio_rpmsg_bus.o
drivers/rpmsg/virtio_rpmsg_bus.c: In function 'rpmsg_send_offchannel_raw':
drivers/rpmsg/virtio_rpmsg_bus.c:723: error: implicit declaration of function 'virtqueue_add_buf_gfp'
make[2]: *** [drivers/rpmsg/virtio_rpmsg_bus.o] Error 1
make[1]: *** [drivers/rpmsg] Error 2
make: *** [drivers] Error 2
Signed-off-by: Axel Lin <[email protected]>
Signed-off-by: Ohad Ben-Cohen <[email protected]>
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 <[email protected]>
Cc: Stephen Boyd <[email protected]>
Cc: Rob Clark <[email protected]>
Cc: Mark Grosen <[email protected]>
Cc: Ludovic BARRE <[email protected]>
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 <[email protected]>.
Signed-off-by: Ohad Ben-Cohen <[email protected]>
Acked-by: Rusty Russell <[email protected]> (virtio_ids.h)
Cc: Brian Swetland <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Grant Likely <[email protected]>
Cc: Tony Lindgren <[email protected]>
Cc: Russell King <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Greg KH <[email protected]>
Cc: Stephen Boyd <[email protected]>
Mark Asselstine