65 lines
2.4 KiB
C
Executable File
65 lines
2.4 KiB
C
Executable File
/*
|
|
* This file is part of the MicroPython project, http://micropython.org/
|
|
*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2018 Scott Shawcroft for Adafruit Industries
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
// Basic allocations outside them for areas such as the VM heap and stack.
|
|
// supervisor/shared/memory.c has a basic implementation for a continuous chunk of memory. Add it
|
|
// to a SRC_ in a Makefile to use it.
|
|
|
|
#ifndef MICROPY_INCLUDED_SUPERVISOR_MEMORY_H
|
|
#define MICROPY_INCLUDED_SUPERVISOR_MEMORY_H
|
|
|
|
#include <stdbool.h>
|
|
#include <stdint.h>
|
|
|
|
typedef struct {
|
|
uint32_t* ptr;
|
|
uint32_t length; // in bytes
|
|
} supervisor_allocation;
|
|
|
|
|
|
|
|
void memory_init(void);
|
|
void free_memory(supervisor_allocation* allocation);
|
|
supervisor_allocation* allocation_from_ptr(void *ptr);
|
|
supervisor_allocation* allocate_remaining_memory(void);
|
|
|
|
// Allocate a piece of a given length in bytes. If high_address is true then it should be allocated
|
|
// at a lower address from the top of the stack. Otherwise, addresses will increase starting after
|
|
// statically allocated memory.
|
|
supervisor_allocation* allocate_memory(uint32_t length, bool high_address);
|
|
|
|
static inline uint16_t align32_size(uint16_t size) {
|
|
if (size % 4 != 0) {
|
|
return (size & 0xfffc) + 0x4;
|
|
}
|
|
return size;
|
|
}
|
|
|
|
// Called after the heap is freed in case the supervisor wants to save some values.
|
|
void supervisor_move_memory(void);
|
|
|
|
#endif // MICROPY_INCLUDED_SUPERVISOR_MEMORY_H
|