8609a05236
POSIX mlock() and munlock() require an MMU as well as DEMAND_PAGING. Signed-off-by: Chris Friedt <cfriedt@tenstorrent.com>
40 lines
614 B
C
40 lines
614 B
C
/*
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* Copyright (c) 2024, Tenstorrent AI ULC
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <stddef.h>
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#include <zephyr/kernel.h>
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#include <zephyr/posix/sys/mman.h>
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#include <zephyr/kernel/mm/demand_paging.h>
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int mlock(const void *addr, size_t len)
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{
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if (IS_ENABLED(CONFIG_DEMAND_PAGING)) {
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void *const _addr = (void *)addr;
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k_mem_pin(_addr, len);
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return 0;
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}
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errno = ENOTSUP;
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return -1;
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}
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int munlock(const void *addr, size_t len)
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{
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if (IS_ENABLED(CONFIG_DEMAND_PAGING)) {
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void *const _addr = (void *)addr;
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k_mem_unpin(_addr, len);
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return 0;
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}
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errno = ENOTSUP;
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return -1;
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}
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