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#ifndef gf_ioread32
12#define gf_ioread32 ioread32
13#endif
14#ifndef gf_iowrite32
15#define gf_iowrite32 iowrite32
16#endif
17
18static inline void gf_write_ptr(const void *ptr, void __iomem *portl,
19				void __iomem *porth)
20{
21	const unsigned long addr = (unsigned long)ptr;
22
23	gf_iowrite32(lower_32_bits(addr), portl);
24#ifdef CONFIG_64BIT
25	gf_iowrite32(upper_32_bits(addr), porth);
26#endif
27}
28
29static inline void gf_write_dma_addr(const dma_addr_t addr,
30				     void __iomem *portl,
31				     void __iomem *porth)
32{
33	gf_iowrite32(lower_32_bits(addr), portl);
34#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
35	gf_iowrite32(upper_32_bits(addr), porth);
36#endif
37}
38
39
40#endif /* __LINUX_GOLDFISH_H */