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 writel(lower_32_bits(addr), portl); 17 #ifdef CONFIG_64BIT 18 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 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