8d350da500
NDK API review complained about missing nullability annotations (added), not having a `__riscv` #if guard around this function (added), and not using `__INTRODUCED_IN(35)`. I haven't done the last of these because that seems less helpful than the traditional "nothing" meaning "always available" (since this riscv64-only function will be available from whatever the first riscv64 API level ends up being). Bug: http://b/291777120 Test: treehugger Change-Id: I501b42851bd5b1612244bd86351628d249a57b99
59 lines
2.1 KiB
C
59 lines
2.1 KiB
C
/*
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* Copyright (C) 2008 The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#pragma once
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/*
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* @file sys/cachectl.h
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* @brief Architecture-specific cache control.
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*/
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#include <sys/cdefs.h>
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__BEGIN_DECLS
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#if defined(__riscv)
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/**
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* Flag for __riscv_flush_icache() to indicate that only the current
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* thread's instruction cache needs to be flushed (rather than the
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* default of all threads).
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*/
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#define SYS_RISCV_FLUSH_ICACHE_LOCAL 1UL
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/**
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* __riscv_flush_icache(2) flushes the instruction cache for the given range of addresses.
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* The address range is currently (Linux 6.4) ignored, so both pointers may be null.
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*
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* Returns 0 on success, and returns -1 and sets `errno` on failure.
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*/
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int __riscv_flush_icache(void* _Nullable __start, void* _Nullable __end, unsigned long __flags);
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#endif
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__END_DECLS
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