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32 lines
623 B
32 lines
623 B
// SPDX-License-Identifier: GPL-2.0 |
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// Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd. |
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#include <linux/syscalls.h> |
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#include <asm/page.h> |
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#include <asm/cacheflush.h> |
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#include <asm/cachectl.h> |
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SYSCALL_DEFINE3(cacheflush, |
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void __user *, addr, |
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unsigned long, bytes, |
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int, cache) |
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{ |
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switch (cache) { |
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case BCACHE: |
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case DCACHE: |
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dcache_wb_range((unsigned long)addr, |
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(unsigned long)addr + bytes); |
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if (cache != BCACHE) |
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break; |
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fallthrough; |
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case ICACHE: |
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flush_icache_mm_range(current->mm, |
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(unsigned long)addr, |
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(unsigned long)addr + bytes); |
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break; |
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default: |
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return -EINVAL; |
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} |
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return 0; |
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}
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