KouweiLee
75 lines
1.7 KiB
C
75 lines
1.7 KiB
C
/*
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* Copyright (c) 2014, Mentor Graphics Corporation
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* All rights reserved.
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* Copyright (c) 2015 Xilinx, Inc. All rights reserved.
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* Copyright 2020 NXP.
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* All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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/* This file populates resource table for BM remote
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* for use by the Linux Master */
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#include "board.h"
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#include "rsc_table.h"
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#include "rpmsg_lite.h"
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#include <string.h>
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#define NUM_VRINGS 0x02
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/* Place resource table in special ELF section */
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#if defined(__ARMCC_VERSION) || defined(__GNUC__)
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__attribute__((section(".resource_table")))
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#elif defined(__ICCARM__)
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#pragma location = ".resource_table"
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#else
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#error Compiler not supported!
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#endif
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const struct remote_resource_table resources = {
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/* Version */
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1,
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/* NUmber of table entries */
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NO_RESOURCE_ENTRIES,
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/* reserved fields */
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{
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0,
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0,
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},
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/* Offsets of rsc entries */
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{
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offsetof(struct remote_resource_table, user_vdev),
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},
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/* SRTM virtio device entry */
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{
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RSC_VDEV,
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7,
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0,
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RSC_VDEV_FEATURE_NS,
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0,
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0,
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0,
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NUM_VRINGS,
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{0, 0},
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},
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/* Vring rsc entry - part of vdev rsc entry */
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{VDEV0_VRING_BASE, VRING_ALIGN, RL_BUFFER_COUNT, 0, 0},
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{VDEV0_VRING_BASE + VRING_SIZE, VRING_ALIGN, RL_BUFFER_COUNT, 1, 0},
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};
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void copyResourceTable(void)
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{
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/*
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* Resource table should be copied to VDEV0_VRING_BASE + RESOURCE_TABLE_OFFSET.
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* VDEV0_VRING_BASE is temperorily kept for backward compatibility, will be
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* removed in future release
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*/
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memcpy((void *)VDEV0_VRING_BASE, &resources, sizeof(resources));
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memcpy((void *)(VDEV0_VRING_BASE + RESOURCE_TABLE_OFFSET), &resources, sizeof(resources));
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}
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