| /* SPDX-License-Identifier: BSD-3-Clause */ | |
| /* | |
| * Remote processor messaging | |
| * | |
| * Copyright (C) 2011-2020 Texas Instruments, Inc. | |
| * Copyright (C) 2011 Google, Inc. | |
| * All rights reserved. | |
| */ | |
| #ifndef _OMAP_RPMSG_H | |
| #define _OMAP_RPMSG_H | |
| /* | |
| * enum - Predefined Mailbox Messages | |
| * | |
| * @RP_MBOX_READY: informs the M3's that we're up and running. this is | |
| * part of the init sequence sent that the M3 expects to see immediately | |
| * after it is booted. | |
| * | |
| * @RP_MBOX_PENDING_MSG: informs the receiver that there is an inbound | |
| * message waiting in its own receive-side vring. please note that currently | |
| * this message is optional: alternatively, one can explicitly send the index | |
| * of the triggered virtqueue itself. the preferred approach will be decided | |
| * as we progress and experiment with those two different approaches. | |
| * | |
| * @RP_MBOX_CRASH: this message is sent if BIOS crashes | |
| * | |
| * @RP_MBOX_ECHO_REQUEST: a mailbox-level "ping" message. | |
| * | |
| * @RP_MBOX_ECHO_REPLY: a mailbox-level reply to a "ping" | |
| * | |
| * @RP_MBOX_ABORT_REQUEST: a "please crash" request, used for testing the | |
| * recovery mechanism (to some extent). | |
| * | |
| * @RP_MBOX_SUSPEND_AUTO: auto suspend request for the remote processor | |
| * | |
| * @RP_MBOX_SUSPEND_SYSTEM: system suspend request for the remote processor | |
| * | |
| * @RP_MBOX_SUSPEND_ACK: successful response from remote processor for a | |
| * suspend request | |
| * | |
| * @RP_MBOX_SUSPEND_CANCEL: a cancel suspend response from a remote processor | |
| * on a suspend request | |
| * | |
| * Introduce new message definitions if any here. | |
| * | |
| * @RP_MBOX_END_MSG: Indicates end of known/defined messages from remote core | |
| * This should be the last definition. | |
| * | |
| */ | |
| enum omap_rp_mbox_messages { | |
| RP_MBOX_READY = 0xFFFFFF00, | |
| RP_MBOX_PENDING_MSG = 0xFFFFFF01, | |
| RP_MBOX_CRASH = 0xFFFFFF02, | |
| RP_MBOX_ECHO_REQUEST = 0xFFFFFF03, | |
| RP_MBOX_ECHO_REPLY = 0xFFFFFF04, | |
| RP_MBOX_ABORT_REQUEST = 0xFFFFFF05, | |
| RP_MBOX_SUSPEND_AUTO = 0xFFFFFF10, | |
| RP_MBOX_SUSPEND_SYSTEM = 0xFFFFFF11, | |
| RP_MBOX_SUSPEND_ACK = 0xFFFFFF12, | |
| RP_MBOX_SUSPEND_CANCEL = 0xFFFFFF13, | |
| RP_MBOX_END_MSG = 0xFFFFFF14, | |
| }; | |
| #endif /* _OMAP_RPMSG_H */ |