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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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C
at master
123456789101112131415161718192021222324// SPDX-License-Identifier: GPL-2.0-only/* * Microblaze support for cache consistent memory. * Copyright (C) 2010 Michal Simek <monstr@monstr.eu> * Copyright (C) 2010 PetaLogix * Copyright (C) 2005 John Williams <jwilliams@itee.uq.edu.au> */
#include <linux/kernel.h>#include <linux/string.h>#include <linux/types.h>#include <linux/mm.h>#include <linux/init.h>#include <linux/dma-map-ops.h>#include <asm/cpuinfo.h>#include <asm/cacheflush.h>
void arch_dma_prep_coherent(struct page *page, size_t size){ phys_addr_t paddr = page_to_phys(page);
flush_dcache_range(paddr, paddr + size);}