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
gf_write_ptr(const void * ptr,void __iomem * portl,void __iomem * porth)18 static 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
gf_write_dma_addr(const dma_addr_t addr,void __iomem * portl,void __iomem * porth)29 static 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 */
41