rte_eal_paging.h

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/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright(c) 2020 Dmitry Kozlyuk
 */

#include <stdint.h>
#ifndef RTE_EXEC_ENV_WINDOWS
#include <sys/mman.h>
#endif

#include <rte_compat.h>

enum rte_mem_prot {
    RTE_PROT_READ = 1 << 0,   
    RTE_PROT_WRITE = 1 << 1,  
    RTE_PROT_EXECUTE = 1 << 2 
};

enum rte_map_flags {
#ifdef RTE_EXEC_ENV_WINDOWS

    RTE_MAP_SHARED = 1 << 0,
    RTE_MAP_ANONYMOUS = 1 << 1,
    RTE_MAP_PRIVATE = 1 << 2,
    RTE_MAP_FORCE_ADDRESS = 1 << 3
#else /* map mmap flags because they are exposed in pci_map_resource() API */
    RTE_MAP_SHARED = MAP_SHARED,
    RTE_MAP_ANONYMOUS = MAP_ANONYMOUS,
    RTE_MAP_PRIVATE = MAP_PRIVATE,
    RTE_MAP_FORCE_ADDRESS = MAP_FIXED,
#endif
};

__rte_internal
void *
rte_mem_map(void *requested_addr, size_t size, int prot, int flags,
    int fd, size_t offset);

__rte_internal
int
rte_mem_unmap(void *virt, size_t size);

__rte_internal
size_t
rte_mem_page_size(void);

__rte_internal
int
rte_mem_lock(const void *virt, size_t size);