[linux-2.6-block.git] / include / linux / goldfish.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __LINUX_GOLDFISH_H
#define __LINUX_GOLDFISH_H

#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/io.h>

/* Helpers for Goldfish virtual platform */

static inline void gf_write_ptr(const void *ptr, void __iomem *portl,
				void __iomem *porth)
{
	const unsigned long addr = (unsigned long)ptr;

	writel(lower_32_bits(addr), portl);
#ifdef CONFIG_64BIT
	writel(upper_32_bits(addr), porth);
#endif
}

static inline void gf_write_dma_addr(const dma_addr_t addr,
				     void __iomem *portl,
				     void __iomem *porth)
{
	writel(lower_32_bits(addr), portl);
#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
	writel(upper_32_bits(addr), porth);
#endif
}


#endif /* __LINUX_GOLDFISH_H */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
425f3740 A	2	#ifndef __LINUX_GOLDFISH_H
	3	#define __LINUX_GOLDFISH_H
	4
68275680	5	#include <linux/kernel.h>
72755eed RK	6	#include <linux/types.h>
	7	#include <linux/io.h>
	8
425f3740 A	9	/* Helpers for Goldfish virtual platform */
425f3740 A	10
07d783fd PST	11	static inline void gf_write_ptr(const void ptr, void __iomem portl,
07d783fd PST	12	void __iomem *porth)
425f3740	13	{
68275680 RK	14	const unsigned long addr = (unsigned long)ptr;
	15
	16	writel(lower_32_bits(addr), portl);
8d9e9857	17	#ifdef CONFIG_64BIT
68275680	18	writel(upper_32_bits(addr), porth);
425f3740 A	19	#endif
	20	}
	21
07d783fd PST	22	static inline void gf_write_dma_addr(const dma_addr_t addr,
	23	void __iomem *portl,
	24	void __iomem *porth)
	25	{
68275680	26	writel(lower_32_bits(addr), portl);
07d783fd	27	#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
68275680	28	writel(upper_32_bits(addr), porth);
07d783fd PST	29	#endif
	30	}
	31
	32
425f3740	33	#endif /* __LINUX_GOLDFISH_H */