forked from Imagelibrary/rtems
139 lines
3.9 KiB
C
139 lines
3.9 KiB
C
/* SPDX-License-Identifier: BSD-2-Clause */
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/**
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* @file
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*
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* @ingroup RTEMSBSPsPowerPCQorIQInterCom
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*
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* @brief Inter-Processor Communication API.
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*/
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/*
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* Copyright (c) 2011 embedded brains GmbH. 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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* 1. 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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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef LIBBSP_POWERPC_QORIQ_INTERCOM_H
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#define LIBBSP_POWERPC_QORIQ_INTERCOM_H
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#include <rtems.h>
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#include <rtems/chain.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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/**
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* @defgroup QorIQInterCom QorIQ - Inter-Processor Communication Support
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*
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* @ingroup RTEMSBSPsPowerPCQorIQ
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*
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* @brief Inter-processor communication support.
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*
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* @{
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*/
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uint32_t qoriq_spin_lock(uint32_t *lock);
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void qoriq_spin_unlock(uint32_t *lock, uint32_t msr);
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#define INTERCOM_CORE_COUNT 2
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#define INTERCOM_SERVICE_COUNT 8
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typedef enum {
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INTERCOM_TYPE_MPCI,
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INTERCOM_TYPE_UART_0,
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INTERCOM_TYPE_UART_1,
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INTERCOM_TYPE_NETWORK,
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INTERCOM_TYPE_CUSTOM_0,
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INTERCOM_TYPE_CUSTOM_1,
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INTERCOM_TYPE_CUSTOM_2,
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INTERCOM_TYPE_CUSTOM_3,
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INTERCOM_TYPE_CUSTOM_4
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} intercom_type;
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typedef enum {
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INTERCOM_SIZE_64 = 0,
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INTERCOM_SIZE_512,
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INTERCOM_SIZE_2K,
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INTERCOM_SIZE_4K
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} intercom_size;
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typedef struct intercom_packet {
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union {
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struct intercom_packet *next;
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rtems_chain_node node;
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} glue;
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intercom_type type_index;
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intercom_size size_index;
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uint32_t flags;
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size_t size;
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uint32_t cache_line_alignment [2];
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char data [];
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} intercom_packet;
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typedef void (*intercom_service)(intercom_packet *packet, void *arg);
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void qoriq_intercom_init(void);
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void qoriq_intercom_start(void);
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void qoriq_intercom_service_install(intercom_type type, intercom_service service, void *arg);
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void qoriq_intercom_service_remove(intercom_type type);
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intercom_packet *qoriq_intercom_allocate_packet(intercom_type type, intercom_size size);
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void qoriq_intercom_send_packets(int destination_core, intercom_packet *first, intercom_packet *last);
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static inline void qoriq_intercom_send_packet(int destination_core, intercom_packet *packet)
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{
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qoriq_intercom_send_packets(destination_core, packet, packet);
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}
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void qoriq_intercom_broadcast_packets(intercom_packet *first, intercom_packet *last);
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static inline void qoriq_intercom_broadcast_packet(intercom_packet *packet)
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{
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qoriq_intercom_broadcast_packets(packet, packet);
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}
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void qoriq_intercom_send(int destination_core, intercom_type type, intercom_size size, const void *buf, size_t n);
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void qoriq_intercom_free_packet(intercom_packet *packet);
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intercom_packet *qoriq_intercom_clone_packet(const intercom_packet *packet);
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#ifdef RTEMS_MULTIPROCESSING
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extern rtems_mpci_table qoriq_intercom_mpci;
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#endif
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/** @} */
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* LIBBSP_POWERPC_QORIQ_INTERCOM_H */
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