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mpremoteprocport.c
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mpremoteprocport.c
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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2023-2024 Arduino SA
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* modremoteproc stm32 port.
*/
#include <stdio.h>
#include <stdint.h>
#include "py/obj.h"
#include "py/runtime.h"
#include "metal/alloc.h"
#include "metal/errno.h"
#include "metal/io.h"
#include "metal/sys.h"
#include "metal/device.h"
#include "metal/utilities.h"
#include "extmod/modopenamp_remoteproc.h"
#define DEBUG_printf(...) // mp_printf(&mp_plat_print, __VA_ARGS__)
struct remoteproc *mp_openamp_remoteproc_init(struct remoteproc *rproc,
const struct remoteproc_ops *ops, void *arg) {
DEBUG_printf("rproc_init()\n");
rproc->ops = ops;
rproc->state = RPROC_OFFLINE;
// Allocate the image store and save it in private data.
rproc->priv = mp_openamp_remoteproc_store_alloc();
return rproc;
}
void *mp_openamp_remoteproc_mmap(struct remoteproc *rproc, metal_phys_addr_t *pa,
metal_phys_addr_t *da, size_t size, unsigned int attribute,
struct metal_io_region **io) {
DEBUG_printf("rproc_mmap(): pa 0x%p da 0x%p io 0x%p size %u\n", *pa, *da, *io, size);
struct remoteproc_mem *mem;
metal_phys_addr_t lpa = *pa;
metal_phys_addr_t lda = *da;
if (lda == METAL_BAD_PHYS) {
return NULL;
}
if (lpa == METAL_BAD_PHYS) {
lpa = lda;
}
// Currently this port doesn't support loading firmware to flash,
// only SD/SRAM images are supported. Check of load address is in
// the flash region, and if so return NULL.
if (lda >= FLASH_BASE && lda < FLASH_END) {
return NULL;
}
mem = metal_allocate_memory(sizeof(*mem));
if (!mem) {
return NULL;
}
*io = metal_allocate_memory(sizeof(struct metal_io_region));
if (!*io) {
metal_free_memory(mem);
return NULL;
}
remoteproc_init_mem(mem, NULL, lpa, lda, size, *io);
metal_io_init(*io, (void *)mem->da, &mem->pa, size,
sizeof(metal_phys_addr_t) << 3, attribute, NULL);
remoteproc_add_mem(rproc, mem);
*pa = lpa;
*da = lda;
return metal_io_phys_to_virt(*io, mem->pa);
}
int mp_openamp_remoteproc_start(struct remoteproc *rproc) {
DEBUG_printf("rproc_start()\n");
if ((RCC->GCR & RCC_GCR_BOOT_C2) || (FLASH->OPTSR_CUR & FLASH_OPTSR_BCM4)) {
// The CM4 core has already been started manually, or auto-boot is enabled
// via the option bytes, in either case the core can't be restarted.
DEBUG_printf("rproc_start(): CM4 core is already booted.\n");
return -1;
}
// Flush M7 cache.
struct metal_list *node;
metal_list_for_each(&rproc->mems, node) {
struct remoteproc_mem *mem;
mem = metal_container_of(node, struct remoteproc_mem, node);
SCB_CleanDCache_by_Addr((uint32_t *)mem->pa, mem->size);
}
HAL_SYSCFG_CM4BootAddConfig(SYSCFG_BOOT_ADDR0, (uint32_t)rproc->bootaddr);
HAL_RCCEx_EnableBootCore(RCC_BOOT_C2);
return 0;
}
int mp_openamp_remoteproc_stop(struct remoteproc *rproc) {
DEBUG_printf("rproc_stop()\n");
if (rproc->state == RPROC_RUNNING) {
// There's no straightforward way to reset or shut down
// the remote processor, so a full system reset is needed.
NVIC_SystemReset();
}
return 0;
}
int mp_openamp_remoteproc_config(struct remoteproc *rproc, void *data) {
DEBUG_printf("rproc_config()\n");
(void)rproc;
return 0;
}
void mp_openamp_remoteproc_remove(struct remoteproc *rproc) {
DEBUG_printf("rproc_remove()\n");
(void)rproc;
}
int mp_openamp_remoteproc_shutdown(struct remoteproc *rproc) {
DEBUG_printf("rproc_shutdown()\n");
if (rproc->state == RPROC_RUNNING) {
// There's no straightforward way to reset or shut down
// the remote processor, so a full system reset is needed.
NVIC_SystemReset();
}
return 0;
}