5b497af42f
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of version 2 of the gnu general public license as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 64 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141901.894819585@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
60 lines
1.3 KiB
C
60 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright(c) 2017 IBM Corporation. All rights reserved.
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*/
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#include <linux/string.h>
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#include <linux/export.h>
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#include <linux/uaccess.h>
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#include <asm/cacheflush.h>
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/*
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* CONFIG_ARCH_HAS_PMEM_API symbols
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*/
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void arch_wb_cache_pmem(void *addr, size_t size)
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{
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unsigned long start = (unsigned long) addr;
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flush_inval_dcache_range(start, start + size);
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}
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EXPORT_SYMBOL(arch_wb_cache_pmem);
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void arch_invalidate_pmem(void *addr, size_t size)
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{
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unsigned long start = (unsigned long) addr;
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flush_inval_dcache_range(start, start + size);
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}
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EXPORT_SYMBOL(arch_invalidate_pmem);
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/*
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* CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE symbols
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*/
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long __copy_from_user_flushcache(void *dest, const void __user *src,
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unsigned size)
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{
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unsigned long copied, start = (unsigned long) dest;
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copied = __copy_from_user(dest, src, size);
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flush_inval_dcache_range(start, start + size);
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return copied;
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}
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void *memcpy_flushcache(void *dest, const void *src, size_t size)
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{
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unsigned long start = (unsigned long) dest;
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memcpy(dest, src, size);
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flush_inval_dcache_range(start, start + size);
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return dest;
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}
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EXPORT_SYMBOL(memcpy_flushcache);
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void memcpy_page_flushcache(char *to, struct page *page, size_t offset,
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size_t len)
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{
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memcpy_flushcache(to, page_to_virt(page) + offset, len);
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}
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EXPORT_SYMBOL(memcpy_page_flushcache);
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