arch/arm/include/asm/dma-mapping.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * (C) Copyright 2007
   4  * Stelian Pop <stelian@popies.net>
   5  * Lead Tech Design <www.leadtechdesign.com>
   6  */
   7 #ifndef __ASM_ARM_DMA_MAPPING_H
   8 #define __ASM_ARM_DMA_MAPPING_H
   9
  10 #include <asm/cache.h>
  11 #include <cpu_func.h>
  12 #include <linux/dma-direction.h>
  13 #include <linux/kernel.h>
  14 #include <linux/types.h>
  15 #include <malloc.h>
  16
  17 static inline void *dma_alloc_coherent(size_t len, unsigned long *handle)
  18 {
  19         *handle = (unsigned long)memalign(ARCH_DMA_MINALIGN, ROUND(len, ARCH_DMA_MINALIGN));
  20         return (void *)*handle;
  21 }
  22
  23 static inline void dma_free_coherent(void *addr)
  24 {
  25         free(addr);
  26 }
  27
  28 #endif /* __ASM_ARM_DMA_MAPPING_H */