soc: apple: rtkit: Pass the crashlog to the crashed() callback

Client drivers might want a copy of the crashlog to stash into a
devcoredump blob. Since device memory management can be very variable,

soc: apple: rtkit: Pass the crashlog to the crashed() callback

Client drivers might want a copy of the crashlog to stash into a
devcoredump blob. Since device memory management can be very variable,
the actual devcoredump implementation is left to client drivers. Pass
the raw crashlog buffer to the client callback so it can use it if
desired.

Signed-off-by: Asahi Lina <[email protected]>
Reviewed-by: Jens Axboe <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Sven Peter <[email protected]>

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kernel-wide: fix spelling mistakes like "assocative" -> "associative"

There were several instances of the string "assocat" in the kernel, which
should have been spelled "associat", with the various

kernel-wide: fix spelling mistakes like "assocative" -> "associative"

There were several instances of the string "assocat" in the kernel, which
should have been spelled "associat", with the various endings of -ive,
-ed, -ion, and sometimes beginnging with dis-.

Add to the spelling dictionary the corrections so that future instances
will be caught by checkpatch, and fix the instances found.

Originally noticed by accident with a 'git grep socat'.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Jesse Brandeburg <[email protected]>
Cc: Randy Dunlap <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

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soc: apple: rtkit: Get rid of apple_rtkit_send_message_wait

It is fundamentally broken and has no users. Just remove it.

Acked-by: Eric Curtin <[email protected]>
Acked-by: Neal Gompa <neal@gompa.

soc: apple: rtkit: Get rid of apple_rtkit_send_message_wait

It is fundamentally broken and has no users. Just remove it.

Acked-by: Eric Curtin <[email protected]>
Acked-by: Neal Gompa <[email protected]>
Acked-by: Alyssa Rosenzweig <[email protected]>
Signed-off-by: Hector Martin <[email protected]>

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soc: apple: rtkit: Export non-devm init/free functions

While we normally encourage devm usage by drivers, some consumers (and
in particular the upcoming Rust abstractions) might want to manually
man

soc: apple: rtkit: Export non-devm init/free functions

While we normally encourage devm usage by drivers, some consumers (and
in particular the upcoming Rust abstractions) might want to manually
manage memory. Export the raw functions to make this possible.

Signed-off-by: Asahi Lina <[email protected]>
Reviewed-by: Sven Peter <[email protected]>
Reviewed-by: Eric Curtin <[email protected]>
Signed-off-by: Hector Martin <[email protected]>

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soc: apple: rtkit: Add a private pointer to apple_rtkit_shmem

This allows downstream consumers to keep track of private data for shmem
mappings. In particular, the Rust abstraction will use this to

soc: apple: rtkit: Add a private pointer to apple_rtkit_shmem

This allows downstream consumers to keep track of private data for shmem
mappings. In particular, the Rust abstraction will use this to safely
drop data associated with a mapping when it is unmapped.

Signed-off-by: Asahi Lina <[email protected]>
Reviewed-by: Sven Peter <[email protected]>
Reviewed-by: Eric Curtin <[email protected]>
Signed-off-by: Hector Martin <[email protected]>

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soc: apple: rtkit: Add apple_rtkit_idle() function

This is yet another low power mode, used by DCP.

Reviewed-by: Eric Curtin <[email protected]>
Reviewed-by: Sven Peter <[email protected]>
Signed

soc: apple: rtkit: Add apple_rtkit_idle() function

This is yet another low power mode, used by DCP.

Reviewed-by: Eric Curtin <[email protected]>
Reviewed-by: Sven Peter <[email protected]>
Signed-off-by: Hector Martin <[email protected]>

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soc: apple: rtkit: Add apple_rtkit_poll

This allows a client to receive messages in atomic context, by polling.

Signed-off-by: Hector Martin <[email protected]>
Signed-off-by: Russell King (Oracle)

soc: apple: rtkit: Add apple_rtkit_poll

This allows a client to receive messages in atomic context, by polling.

Signed-off-by: Hector Martin <[email protected]>
Signed-off-by: Russell King (Oracle) <[email protected]>
Reviewed-by: Sven Peter <[email protected]>
Reviewed-by: Eric Curtin <[email protected]>
Reviewed-by: Linus Walleij <[email protected]>
Signed-off-by: Arnd Bergmann <[email protected]>

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soc: apple: Add RTKit IPC library

Apple SoCs such as the M1 come with multiple embedded co-processors
running proprietary firmware. Communication with those is established
over a simple mailbox usin

soc: apple: Add RTKit IPC library

Apple SoCs such as the M1 come with multiple embedded co-processors
running proprietary firmware. Communication with those is established
over a simple mailbox using the RTKit IPC protocol.

This cannot be implemented inside the mailbox subsystem since on top
of communication over channels we also need support for starting,
hibernating and resetting these co-processors. We also need to
handle shared memory allocations differently depending on the
co-processor and don't want to split that across multiple drivers.

Reviewed-by: Arnd Bergmann <[email protected]>
Signed-off-by: Sven Peter <[email protected]>

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