LXR linux/include/linux/goldfish.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef __LINUX_GOLDFISH_H
   3#define __LINUX_GOLDFISH_H
   4
   5#include <linux/kernel.h>
   6#include <linux/types.h>
   7#include <linux/io.h>
   8
   9/* Helpers for Goldfish virtual platform */
  10
  11static inline void gf_write_ptr(const void *ptr, void __iomem *portl,
  12                                void __iomem *porth)
  13{
  14        const unsigned long addr = (unsigned long)ptr;
  15
  16        writel(lower_32_bits(addr), portl);
  17#ifdef CONFIG_64BIT
  18        writel(upper_32_bits(addr), porth);
  19#endif
  20}
  21
  22static inline void gf_write_dma_addr(const dma_addr_t addr,
  23                                     void __iomem *portl,
  24                                     void __iomem *porth)
  25{
  26        writel(lower_32_bits(addr), portl);
  27#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
  28        writel(upper_32_bits(addr), porth);
  29#endif
  30}
  31
  32
  33#endif /* __LINUX_GOLDFISH_H */
  34