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