| 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 | |
| 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 | |
| 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 |