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gerrit.omnirom.org / android_bionic / refs/heads/android-15 / . / libc / include / sys / cachectl.h
blob: d06d6832f8fbc4ed0fdd0034f19c339d7fd36f0e [file] [log] [blame]
Raghu Gandham405b8022012-07-25 18:16:42 -0700[diff] [blame]1/*
2 * Copyright (C) 2008 The Android Open Source Project
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in
12 * the documentation and/or other materials provided with the
13 * distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
Elliott Hughes203e13d2016-07-22 14:56:18 -0700[diff] [blame]28
Elliott Hughes5ac438e2020-02-13 15:56:31 -0800[diff] [blame]29#pragma once
Raghu Gandham405b8022012-07-25 18:16:42 -0700[diff] [blame]30
Elliott Hughes74d97652023-07-12 16:30:55 -0700[diff] [blame]31/*
32 * @file sys/cachectl.h
33 * @brief Architecture-specific cache control.
34 */
35
Elliott Hughes203e13d2016-07-22 14:56:18 -0700[diff] [blame]36#include <sys/cdefs.h>
Elliott Hughes203e13d2016-07-22 14:56:18 -0700[diff] [blame]37
Elliott Hughes74d97652023-07-12 16:30:55 -0700[diff] [blame]38__BEGIN_DECLS
39
Elliott Hughes8d350da2023-07-18 18:58:02 +0000[diff] [blame]40#if defined(__riscv)
41
Elliott Hughes74d97652023-07-12 16:30:55 -0700[diff] [blame]42/**
43 * Flag for __riscv_flush_icache() to indicate that only the current
44 * thread's instruction cache needs to be flushed (rather than the
45 * default of all threads).
46 */
47#define SYS_RISCV_FLUSH_ICACHE_LOCAL 1UL
48
49/**
50 * __riscv_flush_icache(2) flushes the instruction cache for the given range of addresses.
Elliott Hughes3c932f12024-10-21 19:00:13 +0000[diff] [blame]51 * The address range is currently (Linux 6.12) ignored, so both pointers may be null.
Elliott Hughes74d97652023-07-12 16:30:55 -0700[diff] [blame]52 *
53 * Returns 0 on success, and returns -1 and sets `errno` on failure.
54 */
Elliott Hughes8d350da2023-07-18 18:58:02 +0000[diff] [blame]55int __riscv_flush_icache(void* _Nullable __start, void* _Nullable __end, unsigned long __flags);
56
57#endif
Elliott Hughes74d97652023-07-12 16:30:55 -0700[diff] [blame]58
59__END_DECLS