arch/microblaze/mm/consistent.c

   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
  18 void 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 }