riscv/qemu-rv: add RPTUN support
This adds initial RPTUN support for qemu-rv and rv-virt device. Signed-off-by: Yanfeng Liu <yfliu2008@qq.com>
This commit is contained in:
Yanfeng Liu
Xiang Xiao
parent
2af5ad174f
commit
b9fde453ce
@ -38,3 +38,7 @@ endif
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ifeq ($(CONFIG_BUILD_PROTECTED),y)
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ifeq ($(CONFIG_BUILD_PROTECTED),y)
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CHIP_CSRCS += qemu_rv_userspace.c
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CHIP_CSRCS += qemu_rv_userspace.c
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endif
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endif
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ifeq ($(CONFIG_RPTUN),y)
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CHIP_CSRCS += qemu_rv_rptun.c
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endif
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@ -37,6 +37,30 @@
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#include "riscv_aia.h"
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#include "riscv_aia.h"
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#include "chip.h"
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#include "chip.h"
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#ifdef CONFIG_RPTUN
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#include "qemu_rv_rptun.h"
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#endif
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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#ifdef CONFIG_RPTUN
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static int qemu_ipi_handler(int mcause, FAR void *regs, FAR void *args)
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{
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/* Clear IPI (Inter-Processor-Interrupt) */
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riscv_ipi_clear(up_cpu_index());
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#ifdef CONFIG_SMP
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riscv_pause_handler(mcause, regs, args);
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#endif
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qemu_rptun_ipi();
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return OK;
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}
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#endif
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/****************************************************************************
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/****************************************************************************
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* Public Functions
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* Public Functions
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****************************************************************************/
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****************************************************************************/
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@ -106,7 +130,13 @@ void up_irqinitialize(void)
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riscv_exception_attach();
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riscv_exception_attach();
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#ifdef CONFIG_SMP
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#ifdef CONFIG_RPTUN
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/* Replace default IRQ_SOFT handler */
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irq_attach(RISCV_IRQ_SOFT, qemu_ipi_handler, NULL);
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#endif
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#if defined(CONFIG_SMP) || defined(CONFIG_RPTUN)
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/* Clear IPI for CPU0 */
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/* Clear IPI for CPU0 */
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riscv_ipi_clear(0);
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riscv_ipi_clear(0);
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360
arch/risc-v/src/qemu-rv/qemu_rv_rptun.c
Normal file
360
arch/risc-v/src/qemu-rv/qemu_rv_rptun.c
Normal file
@ -0,0 +1,360 @@
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/****************************************************************************
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* arch/risc-v/src/qemu-rv/qemu_rv_rptun.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <assert.h>
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#include <debug.h>
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#include <errno.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <string.h>
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#include <sys/types.h>
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#include <time.h>
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#include <nuttx/nuttx.h>
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#include <nuttx/arch.h>
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#include <nuttx/irq.h>
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#include <nuttx/kthread.h>
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#include <nuttx/semaphore.h>
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#include <nuttx/spi/spi.h>
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#include <nuttx/wqueue.h>
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#include <nuttx/rptun/openamp.h>
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#include <nuttx/rptun/rptun.h>
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#include <nuttx/drivers/addrenv.h>
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#include <nuttx/list.h>
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#include <arch/barriers.h>
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#include <arch/board/board.h>
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#include "hardware/qemu_rv_memorymap.h"
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#include "riscv_internal.h"
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#include "qemu_rv_rptun.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define rpinfo rpmsginfo
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#define rpwarn rpmsgwarn
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#define rperr rpmsgerr
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/* Vring config parameters taken from nrf53_rptun */
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#define VRINGS 2 /* Number of vrings */
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#define VRING_ALIGN 8 /* Vring alignment */
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#define VRING_NR 8 /* Number of descriptors */
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#define VRING_SIZE 512 /* Size of one descriptor */
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/* The RPMSG default channel used with only one RPMSG channel */
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#define VRING_SHMEM (CONFIG_QEMU_RPTUN_SHM_BASE) /* Vring addr */
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#define VRING0_NOTIFYID (RSC_NOTIFY_ID_ANY) /* Vring0 id */
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#define VRING1_NOTIFYID (RSC_NOTIFY_ID_ANY) /* Vring1 id */
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#define VRING_SHMEM_END (VRING_SHMEM + CONFIG_QEMU_RPTUN_SHM_SIZE)
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/* Number of rptun peers */
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#ifdef CONFIG_QEMU_RPTUN_MASTER
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#define NUM_RPTUN_PEERS (CONFIG_QEMU_RPTUN_REMOTE_NUM)
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#else
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#define NUM_RPTUN_PEERS (1)
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#endif
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/****************************************************************************
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* Private Types
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****************************************************************************/
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struct qemu_rptun_shmem_s
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{
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volatile uintptr_t base;
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struct rptun_rsc_s rsc;
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};
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struct qemu_rptun_dev_s
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{
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struct rptun_dev_s rptun;
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rptun_callback_t callback;
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void *arg;
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bool master;
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struct qemu_rptun_shmem_s *shmem;
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struct simple_addrenv_s addrenv[VRINGS];
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uintreg_t peeripi;
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char peername[RPMSG_NAME_SIZE + 1];
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uint8_t ndx;
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};
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#define as_qemu_rptun_dev(d) container_of(d, struct qemu_rptun_dev_s, rptun)
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/****************************************************************************
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* Private Function Prototypes
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****************************************************************************/
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static const char *rp_get_cpuname(struct rptun_dev_s *dev);
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static struct rptun_rsc_s *rp_get_resource(struct rptun_dev_s *dev);
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static bool rp_is_autostart(struct rptun_dev_s *dev);
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static bool rp_is_master(struct rptun_dev_s *dev);
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static int rp_start(struct rptun_dev_s *dev);
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static int rp_stop(struct rptun_dev_s *dev);
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static int rp_notify(struct rptun_dev_s *dev, uint32_t notifyid);
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static int rp_set_callback(struct rptun_dev_s *, rptun_callback_t, void *);
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/****************************************************************************
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* Private Data
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****************************************************************************/
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static const struct rptun_ops_s g_rptun_ops =
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{
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.get_cpuname = rp_get_cpuname,
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.get_resource = rp_get_resource,
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.is_autostart = rp_is_autostart,
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.is_master = rp_is_master,
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.start = rp_start,
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.stop = rp_stop,
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.notify = rp_notify,
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.register_callback = rp_set_callback,
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};
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#define SHMEM (struct qemu_rptun_shmem_s*)VRING_SHMEM
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#define SHMEM_SIZE sizeof(struct qemu_rptun_shmem_s)
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#define SHMEM_END (VRING_SHMEM + SHMEM_SIZE)
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static struct qemu_rptun_dev_s g_rptun_devs[NUM_RPTUN_PEERS];
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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int rp_init_ipi(void)
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{
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#ifdef CONFIG_QEMU_RPTUN_MASTER
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char *ptr = CONFIG_QEMU_RPTUN_REMOTE_IPIS;
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int i = 0;
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while (*ptr != '\0')
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{
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if (i < CONFIG_QEMU_RPTUN_REMOTE_NUM)
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{
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#ifdef CONFIG_ARCH_RV64
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g_rptun_devs[i].peeripi = strtoll(ptr, &ptr, 0);
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#else
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g_rptun_devs[i].peeripi = strtol(ptr, &ptr, 0);
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#endif
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if (!g_rptun_devs[i].peeripi)
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{
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break;
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}
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}
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while (*ptr != '\0' && *ptr != ',')
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{
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ptr++; /* seek delimeter */
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}
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if (*ptr)
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{
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ptr++; /* skip delimeter */
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}
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i++;
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}
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return i;
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#else
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g_rptun_devs[0].peeripi = CONFIG_QEMU_RPTUN_MASTER_IPI;
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return 1;
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#endif
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}
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static const char *rp_get_cpuname(struct rptun_dev_s *dev)
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{
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struct qemu_rptun_dev_s *priv = as_qemu_rptun_dev(dev);
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return priv->peername;
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}
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static struct rptun_rsc_s *rp_get_resource(struct rptun_dev_s *dev)
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{
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struct qemu_rptun_dev_s *priv = as_qemu_rptun_dev(dev);
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struct rptun_rsc_s *rsc;
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if (priv->shmem != NULL)
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{
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return &priv->shmem->rsc;
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}
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priv->shmem = SHMEM + CONFIG_QEMU_RPTUN_SHM_SIZE * priv->ndx;
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if (priv->master)
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{
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/* Perform initial setup */
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rsc = &priv->shmem->rsc;
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rsc->rsc_tbl_hdr.ver = 1;
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rsc->rsc_tbl_hdr.num = 1;
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rsc->rsc_tbl_hdr.reserved[0] = 0;
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rsc->rsc_tbl_hdr.reserved[1] = 0;
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rsc->offset[0] = offsetof(struct rptun_rsc_s,
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rpmsg_vdev);
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rsc->rpmsg_vdev.type = RSC_VDEV;
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rsc->rpmsg_vdev.id = VIRTIO_ID_RPMSG;
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rsc->rpmsg_vdev.dfeatures = 1 << VIRTIO_RPMSG_F_NS
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| 1 << VIRTIO_RPMSG_F_ACK
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| 1 << VIRTIO_RPMSG_F_BUFSZ;
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rsc->rpmsg_vdev.config_len = sizeof(struct fw_rsc_config);
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rsc->rpmsg_vdev.num_of_vrings = VRINGS;
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rsc->rpmsg_vring0.align = VRING_ALIGN;
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rsc->rpmsg_vring0.num = VRING_NR;
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rsc->rpmsg_vring0.notifyid = VRING0_NOTIFYID;
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rsc->rpmsg_vring1.align = VRING_ALIGN;
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rsc->rpmsg_vring1.num = VRING_NR;
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rsc->rpmsg_vring1.notifyid = VRING1_NOTIFYID;
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rsc->config.r2h_buf_size = VRING_SIZE;
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rsc->config.h2r_buf_size = VRING_SIZE;
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priv->shmem->base = (uintptr_t)priv->shmem;
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}
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else
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{
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/* TODO: use IPI later, polling now. */
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rpinfo("wait for shmem %p...\n", priv->shmem);
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while (priv->shmem->base == 0)
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{
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nxsig_usleep(100);
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}
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}
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rpinfo("shmem:%p, dev:%p\n", (void *)priv->shmem->base, dev);
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return &priv->shmem->rsc;
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}
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static bool rp_is_autostart(struct rptun_dev_s *dev)
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{
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return true;
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}
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static bool rp_is_master(struct rptun_dev_s *dev)
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{
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struct qemu_rptun_dev_s *priv = as_qemu_rptun_dev(dev);
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return priv->master;
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}
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static int rp_start(struct rptun_dev_s *dev)
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{
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rpinfo("%p\n", dev);
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return 0;
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}
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static int rp_stop(struct rptun_dev_s *dev)
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{
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rpinfo("%p\n", dev);
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return 0;
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}
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static int rp_notify(struct rptun_dev_s *dev, uint32_t vqid)
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{
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struct qemu_rptun_dev_s *priv = as_qemu_rptun_dev(dev);
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UNUSED(vqid);
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putreg32(1, priv->peeripi);
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return 0;
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}
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static int rp_set_callback(struct rptun_dev_s *dev, rptun_callback_t cb,
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void *arg)
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{
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struct qemu_rptun_dev_s *priv = as_qemu_rptun_dev(dev);
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priv->callback = cb;
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priv->arg = arg;
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return 0;
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}
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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void qemu_rptun_ipi()
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{
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for (int i = 0; i < NUM_RPTUN_PEERS ; i++)
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{
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if (g_rptun_devs[i].callback)
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{
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g_rptun_devs[i].callback(g_rptun_devs[i].arg, RPTUN_NOTIFY_ALL);
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}
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}
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}
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int qemu_rptun_init()
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{
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struct qemu_rptun_dev_s *dev;
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int ret;
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DEBUGASSERT(NUM_RPTUN_PEERS == rp_init_ipi());
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/* master is responsible for initializing shmem */
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|
#ifdef CONFIG_QEMU_RPTUN_MASTER
|
||||||
|
ret = CONFIG_QEMU_RPTUN_SHM_SIZE * NUM_RPTUN_PEERS;
|
||||||
|
memset((void *)SHMEM, 0, ret);
|
||||||
|
rpinfo("cleared %d @%p\n", ret, SHMEM);
|
||||||
|
#endif
|
||||||
|
|
||||||
|
for (int i = 0; i < NUM_RPTUN_PEERS; i++)
|
||||||
|
{
|
||||||
|
dev = &g_rptun_devs[i];
|
||||||
|
|
||||||
|
#ifdef CONFIG_QEMU_RPTUN_MASTER
|
||||||
|
dev->master = true;
|
||||||
|
dev->ndx = i;
|
||||||
|
snprintf(dev->peername, sizeof(dev->peername), "remote%d", i + 1);
|
||||||
|
#else
|
||||||
|
dev->master = false;
|
||||||
|
strncpy(dev->peername, "master", sizeof(dev->peername) - 1);
|
||||||
|
#endif
|
||||||
|
|
||||||
|
dev->rptun.ops = &g_rptun_ops;
|
||||||
|
|
||||||
|
ret = rptun_initialize(&dev->rptun);
|
||||||
|
if (ret < 0)
|
||||||
|
{
|
||||||
|
rperr("%s failed %d!\n", dev->peername, ret);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
rpinfo("%s ok\n", dev->peername);
|
||||||
|
}
|
||||||
|
|
||||||
|
return OK;
|
||||||
|
}
|
||||||
67
arch/risc-v/src/qemu-rv/qemu_rv_rptun.h
Normal file
67
arch/risc-v/src/qemu-rv/qemu_rv_rptun.h
Normal file
@ -0,0 +1,67 @@
|
|||||||
|
/****************************************************************************
|
||||||
|
* arch/risc-v/src/qemu-rv/qemu_rv_rptun.h
|
||||||
|
*
|
||||||
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
||||||
|
* contributor license agreements. See the NOTICE file distributed with
|
||||||
|
* this work for additional information regarding copyright ownership. The
|
||||||
|
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
||||||
|
* "License"); you may not use this file except in compliance with the
|
||||||
|
* License. You may obtain a copy of the License at
|
||||||
|
*
|
||||||
|
* http://www.apache.org/licenses/LICENSE-2.0
|
||||||
|
*
|
||||||
|
* Unless required by applicable law or agreed to in writing, software
|
||||||
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
||||||
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
||||||
|
* License for the specific language governing permissions and limitations
|
||||||
|
* under the License.
|
||||||
|
*
|
||||||
|
****************************************************************************/
|
||||||
|
|
||||||
|
#ifndef __ARCH_RISCV_SRC_QEMU_RV_QEMU_RV_RPTUN_H
|
||||||
|
#define __ARCH_RISCV_SRC_QEMU_RV_QEMU_RV_RPTUN_H
|
||||||
|
|
||||||
|
/****************************************************************************
|
||||||
|
* Included Files
|
||||||
|
****************************************************************************/
|
||||||
|
|
||||||
|
#include <nuttx/config.h>
|
||||||
|
#include <sys/types.h>
|
||||||
|
|
||||||
|
/****************************************************************************
|
||||||
|
* Public Function Prototypes
|
||||||
|
****************************************************************************/
|
||||||
|
|
||||||
|
#ifndef __ASSEMBLY__
|
||||||
|
|
||||||
|
#undef EXTERN
|
||||||
|
#if defined(__cplusplus)
|
||||||
|
#define EXTERN extern "C"
|
||||||
|
extern "C"
|
||||||
|
{
|
||||||
|
#else
|
||||||
|
#define EXTERN extern
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/****************************************************************************
|
||||||
|
* Name: qemu_rptun_init
|
||||||
|
* Description: initializes QEMU-RV RPTUN devices.
|
||||||
|
* Returns: OK on success, or negated number on error
|
||||||
|
****************************************************************************/
|
||||||
|
|
||||||
|
int qemu_rptun_init(void);
|
||||||
|
|
||||||
|
/****************************************************************************
|
||||||
|
* Name: qemu_rptun_ipi
|
||||||
|
* Description: hook called from IRQ_SOFT handler.
|
||||||
|
****************************************************************************/
|
||||||
|
|
||||||
|
void qemu_rptun_ipi(void);
|
||||||
|
|
||||||
|
#undef EXTERN
|
||||||
|
#if defined(__cplusplus)
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#endif /* __ASSEMBLY__ */
|
||||||
|
#endif /* __ARCH_RISCV_SRC_QEMU_RV_QEMU_RV_RPTUN_H */
|
||||||
@ -38,6 +38,7 @@
|
|||||||
|
|
||||||
#include "hardware/qemu_rv_memorymap.h"
|
#include "hardware/qemu_rv_memorymap.h"
|
||||||
#include "qemu_rv_memorymap.h"
|
#include "qemu_rv_memorymap.h"
|
||||||
|
#include "qemu_rv_rptun.h"
|
||||||
|
|
||||||
#include "riscv_internal.h"
|
#include "riscv_internal.h"
|
||||||
#include "romfs.h"
|
#include "romfs.h"
|
||||||
@ -139,6 +140,10 @@ int board_app_initialize(uintptr_t arg)
|
|||||||
#endif
|
#endif
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
|
#ifdef CONFIG_RPTUN
|
||||||
|
qemu_rptun_init();
|
||||||
|
#endif
|
||||||
|
|
||||||
return OK;
|
return OK;
|
||||||
#endif
|
#endif
|
||||||
}
|
}
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user