cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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consistent.c (605B)

      1// SPDX-License-Identifier: GPL-2.0-only
      2/*
      3 * Microblaze support for cache consistent memory.
      4 * Copyright (C) 2010 Michal Simek <monstr@monstr.eu>
      5 * Copyright (C) 2010 PetaLogix
      6 * Copyright (C) 2005 John Williams <jwilliams@itee.uq.edu.au>
      7 */
      8
      9#include <linux/kernel.h>
     10#include <linux/string.h>
     11#include <linux/types.h>
     12#include <linux/mm.h>
     13#include <linux/init.h>
     14#include <linux/dma-map-ops.h>
     15#include <asm/cpuinfo.h>
     16#include <asm/cacheflush.h>
     17
     18void arch_dma_prep_coherent(struct page *page, size_t size)
     19{
     20	phys_addr_t paddr = page_to_phys(page);
     21
     22	flush_dcache_range(paddr, paddr + size);
     23}