pre-M1 mailbox support #523
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asdfugil
commented
Dec 18, 2025
asdfugil
commented
- Support T8015's ASC mailboxes as well as "AKF" mailboxes
- Make the SEP interface work with AKF mailboxes
Make mailbox operations implementation specific to prepare for adding support for implementation that needs different operations. Signed-off-by: Nick Chan <[email protected]>
Allows the function to be reused for T8015 IOP support which will be added soon. Signed-off-by: Nick Chan <[email protected]>
Signed-off-by: Nick Chan <[email protected]>
Signed-off-by: Nick Chan <[email protected]>
AKF (Apple KingFisher) mailboxes are used for Cortex-A7 coprocessors in A7 - A10, T2 SoCs. There are two revisions of this hardware. Since the message size of this mailbox is 64-bit instead of 96-bit, support this type of mailbox in its own file as all clients will need to be modified to support the smaller message size. Signed-off-by: Nick Chan <[email protected]>
Abstract SEP message from the underlying mailbox such that support for SEP behind different types of mailbox can be added. Signed-off-by: Nick Chan <[email protected]>
Some SEP features are not supported on older implementations. Add a capability framework to communicate that to downstream clients. Signed-off-by: Nick Chan <[email protected]>
Add support for SEP behind AKF mailboxes. AKF mailbox has 64-bit (32+32) bit messages so both msg0 and msg1 is used for transmitting SEP messages. Signed-off-by: Nick Chan <[email protected]>
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