Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: BSD-3-Clause */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * Remote processor messaging
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * Copyright (C) 2011-2020 Texas Instruments, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  * Copyright (C) 2011 Google, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  * All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #ifndef _OMAP_RPMSG_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #define _OMAP_RPMSG_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)  * enum - Predefined Mailbox Messages
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)  * @RP_MBOX_READY: informs the M3's that we're up and running. this is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)  * part of the init sequence sent that the M3 expects to see immediately
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)  * after it is booted.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)  * @RP_MBOX_PENDING_MSG: informs the receiver that there is an inbound
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)  * message waiting in its own receive-side vring. please note that currently
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)  * this message is optional: alternatively, one can explicitly send the index
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)  * of the triggered virtqueue itself. the preferred approach will be decided
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)  * as we progress and experiment with those two different approaches.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)  * @RP_MBOX_CRASH: this message is sent if BIOS crashes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)  * @RP_MBOX_ECHO_REQUEST: a mailbox-level "ping" message.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)  * @RP_MBOX_ECHO_REPLY: a mailbox-level reply to a "ping"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)  * @RP_MBOX_ABORT_REQUEST: a "please crash" request, used for testing the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)  * recovery mechanism (to some extent).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)  * @RP_MBOX_SUSPEND_AUTO: auto suspend request for the remote processor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)  * @RP_MBOX_SUSPEND_SYSTEM: system suspend request for the remote processor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)  * @RP_MBOX_SUSPEND_ACK: successful response from remote processor for a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)  * suspend request
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)  * @RP_MBOX_SUSPEND_CANCEL: a cancel suspend response from a remote processor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)  * on a suspend request
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)  * Introduce new message definitions if any here.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)  * @RP_MBOX_END_MSG: Indicates end of known/defined messages from remote core
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)  * This should be the last definition.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) enum omap_rp_mbox_messages {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 	RP_MBOX_READY		= 0xFFFFFF00,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 	RP_MBOX_PENDING_MSG	= 0xFFFFFF01,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 	RP_MBOX_CRASH		= 0xFFFFFF02,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 	RP_MBOX_ECHO_REQUEST	= 0xFFFFFF03,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 	RP_MBOX_ECHO_REPLY	= 0xFFFFFF04,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 	RP_MBOX_ABORT_REQUEST	= 0xFFFFFF05,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 	RP_MBOX_SUSPEND_AUTO	= 0xFFFFFF10,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 	RP_MBOX_SUSPEND_SYSTEM	= 0xFFFFFF11,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 	RP_MBOX_SUSPEND_ACK	= 0xFFFFFF12,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 	RP_MBOX_SUSPEND_CANCEL	= 0xFFFFFF13,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) 	RP_MBOX_END_MSG		= 0xFFFFFF14,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) #endif /* _OMAP_RPMSG_H */