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https://github.com/torvalds/linux
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70 lines
2.8 KiB
C
70 lines
2.8 KiB
C
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/*
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* Remote processor messaging
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*
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* Copyright (C) 2011 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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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name Texas Instruments nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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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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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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};
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#endif /* _OMAP_RPMSG_H */
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