12 Oct, 2019
1 commit
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When wrapping around the FIFO, the remote expects the tail pointer to
be reset to 0 on the edge case where the tail equals the FIFO length.Fixes: caf989c350e8 ("rpmsg: glink: Introduce glink smem based transport")
Cc: stable@vger.kernel.org
Signed-off-by: Chris Lew
Signed-off-by: Bjorn Andersson
18 Sep, 2019
1 commit
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Naming the glink edge device on the parent of_node short name causes
collisions when multiple remoteproc instances with only different unit
address are described on the platform_bus in DeviceTree.Base the edge's name on the parent remoteproc's name instead, to ensure
that it's unique.Reviewed-by: Niklas Cassel
Signed-off-by: Bjorn Andersson
04 Oct, 2018
1 commit
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The current rx peak function fails to read the data if size is
less than 4bytes.Use memcpy_fromio to support data reads of size less than 4 bytes.
Cc: stable@vger.kernel.org
Fixes: f0beb4ba9b18 ("rpmsg: glink: Remove chunk size word align warning")
Signed-off-by: Arun Kumar Neelakantam
Signed-off-by: Bjorn Andersson
28 Aug, 2018
1 commit
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In preparation to remove the node name pointer from struct device_node,
convert printf users to use the %pOFn format specifier.Cc: Ohad Ben-Cohen
Cc: Bjorn Andersson
Cc: linux-remoteproc@vger.kernel.org
Signed-off-by: Rob Herring
Signed-off-by: Bjorn Andersson
04 Jun, 2018
1 commit
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Use the appropriate SPDX license identifier in various rpmsg
glink driver source files and drop the previous boilerplate
license text.Signed-off-by: Suman Anna
Signed-off-by: Bjorn Andersson
18 Mar, 2018
1 commit
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if device_register() returned an error! Always use put_device()
to give up the reference initialized. And unregister device for
other return error.Signed-off-by: Arvind Yadav
Signed-off-by: Bjorn Andersson
19 Dec, 2017
1 commit
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Ensure the ordering of the fifo write and the update of the write index,
so that the index is not updated before the data has landed in the fifo.Acked-By: Chris Lew
Reported-by: Arun Kumar Neelakantam
Signed-off-by: Bjorn Andersson
07 Dec, 2017
1 commit
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These duplicate includes have been found with scripts/checkincludes.pl but
they have been removed manually to avoid removing false positives.Signed-off-by: Pravin Shedge
Signed-off-by: Bjorn Andersson
30 Aug, 2017
4 commits
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To fully read the received rx data from FIFO both the command and data
has to be read. Currently we read command, data separately and process
them. By adding an offset parameter to RX FIFO peak accessor, command
and data can be read together, simplifying things. So introduce this.Acked-by: Arun Kumar Neelakantam
Signed-off-by: Sricharan R
Signed-off-by: Bjorn Andersson -
Intents are nothing but pre-allocated buffers of appropriate size that
are allocated on the local side and communicated to the remote side and
the remote stores the list of intent ids that it is informed.Later when remote side is intenting to send data, it picks up a right
intent (based on the size) and sends the data buffer and the intent id.
Local side receives the data and copies it to the local intent buffer.The whole idea is to avoid stalls on the transport for allocating
memory, used for copy based transports.When the remote request to allocate buffers using CMD_RX_INTENT_REQ, we
allocate buffers of requested size, store the buffer id locally and also
communicate the intent id to the remote.Acked-by: Arun Kumar Neelakantam
Signed-off-by: Sricharan R
Signed-off-by: Bjorn Andersson -
G-link supports a version number and feature flags for each transport.
A combination of the version number and feature flags enable/disable:(*) G-Link software updates for each edge
(*) Individual features for each edgeEndpoints negotiate both the version and the supported flags when
the transport is opened and they cannot be changed after negotiation has
been completed.Each full implementation of G-Link must support a minimum of the current
version, the previous version, and the base negotiation version called v0.Acked-by: Arun Kumar Neelakantam
Signed-off-by: Sricharan R
Signed-off-by: Bjorn Andersson -
The glink protocol supports different types of transports (shared
memory). With the core protocol remaining the same, the way the
transport's memory is probed and accessed is different. So add support
for glink's smem based transports.Adding a new smem transport register function and the fifo accessors for
the same.Acked-by: Arun Kumar Neelakantam
Signed-off-by: Sricharan R
Signed-off-by: Bjorn Andersson
