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Based on 2 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation #
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 4122 file(s).
Signed-off-by: Thomas Gleixner <[email protected]>
Reviewed-by: Enrico Weigelt <[email protected]>
Reviewed-by: Kate Stewart <[email protected]>
Reviewed-by: Allison Randal <[email protected]>
Cc: [email protected]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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The mailbox framework supports blocking transfers via completions for
clients that can sleep. In order to support blocking transfers in cases
where the transmission is not permitted to sleep, add a new ->flush()
callback that controller drivers can implement to busy loop until the
transmission has been completed. A new mbox_flush() function can be
called by mailbox consumers in atomic context to make sure a transfer
has completed.
Signed-off-by: Thierry Reding <[email protected]>
Signed-off-by: Jassi Brar <[email protected]>
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Add device-managed equivalents of the mbox_controller_register() and
mbox_controller_unregister() functions that can be used to have the
devres infrastructure automatically unregister mailbox controllers on
driver probe failure or driver removal. This can help remove a lot of
boiler plate code from drivers.
Reviewed-by: Bjorn Andersson <[email protected]>
Reviewed-by: Sudeep Holla <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
Signed-off-by: Jassi Brar <[email protected]>
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The mailbox core uses jiffy based timer to handle polling for the
transmit completion. If the client/protocol have/support notification
of the last packet transmit completion via ACK packet, then we tick the
Tx state machine immediately in the callback. However if the client
doesn't support that mechanism we might end-up waiting for atleast a
jiffy even though the remote is ready to receive the next request.
This patch switches the timer used for that polling from jiffy-based
to hrtimer-based so that we can support polling at much higher time
resolution.
Reported-and-suggested-by: Juri Lelli <[email protected]>
Signed-off-by: Sudeep Holla <[email protected]>
Signed-off-by: Jassi Brar <[email protected]>
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The mailbox controller's channel ops ought to be read-only. Update
all the mailbox drivers to make their mbox_chan_ops const as well.
Signed-off-by: Andrew Bresticker <[email protected]>
Cc: Ashwin Chaugule <[email protected]>
Cc: Ley Foon Tan <[email protected]>
Acked-by: Suman Anna <[email protected]>
Signed-off-by: Jassi Brar <[email protected]>
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Introduce common framework for client/protocol drivers and
controller drivers of Inter-Processor-Communication (IPC).
Client driver developers should have a look at
include/linux/mailbox_client.h to understand the part of
the API exposed to client drivers.
Similarly controller driver developers should have a look
at include/linux/mailbox_controller.h
Reviewed-by: Mark Brown <[email protected]>
Signed-off-by: Jassi Brar <[email protected]>
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