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
  11 static 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         __raw_writel(lower_32_bits(addr), portl);
  17 #ifdef CONFIG_64BIT
  18         __raw_writel(upper_32_bits(addr), porth);
  19 #endif
  20 }
  21
  22 static inline void gf_write_dma_addr(const dma_addr_t addr,
  23                                      void __iomem *portl,
  24                                      void __iomem *porth)
  25 {
  26         __raw_writel(lower_32_bits(addr), portl);
  27 #ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
  28         __raw_writel(upper_32_bits(addr), porth);
  29 #endif
  30 }
  31
  32
  33 #endif /* __LINUX_GOLDFISH_H */