/*
 * Stolen from the linux-2.6/include/asm-generic/io.h
 */

/**
 * @file
 * @brief mips IO access functions
 */

#ifndef __ASM_MIPS_IO_H
#define __ASM_MIPS_IO_H

#include <linux/compiler.h>
#include <asm/types.h>
#include <asm/addrspace.h>
#include <asm/byteorder.h>

void dma_flush_range(unsigned long, unsigned long);
void dma_inv_range(unsigned long, unsigned long);

/*
 *     virt_to_phys - map virtual addresses to physical
 *     @address: address to remap
 *
 *     The returned physical address is the physical (CPU) mapping for
 *     the memory address given.
 */
static inline unsigned long virt_to_phys(const void *address)
{
	return (unsigned long)CPHYSADDR(address);
}

/*
 *     phys_to_virt - map physical address to virtual
 *     @address: address to remap
 *
 *     The returned virtual address is a current CPU mapping for
 *     the memory address given.
 */
static inline void *phys_to_virt(unsigned long address)
{
	if (IS_ENABLED(CONFIG_MMU)) {
		return (void *)CKSEG0ADDR(address);
	}

	return (void *)CKSEG1ADDR(address);
}

#define	IO_SPACE_LIMIT	0

/*****************************************************************************/
/*
 * readX/writeX() are used to access memory mapped devices. On some
 * architectures the memory mapped IO stuff needs to be accessed
 * differently. On the simple architectures, we just read/write the
 * memory location directly.
 */
#ifndef __raw_readb
static inline u8 __raw_readb(const volatile void __iomem *addr)
{
	return *(const volatile u8 __force *) addr;
}
#endif

#ifndef __raw_readw
static inline u16 __raw_readw(const volatile void __iomem *addr)
{
	return *(const volatile u16 __force *) addr;
}
#endif

#ifndef __raw_readl
static inline u32 __raw_readl(const volatile void __iomem *addr)
{
	return *(const volatile u32 __force *) addr;
}
#endif

#define readb __raw_readb
#define readw(addr) __le16_to_cpu(__raw_readw(addr))
#define readl(addr) __le32_to_cpu(__raw_readl(addr))

#ifndef __raw_writeb
static inline void __raw_writeb(u8 b, volatile void __iomem *addr)
{
	*(volatile u8 __force *) addr = b;
}
#endif

#ifndef __raw_writew
static inline void __raw_writew(u16 b, volatile void __iomem *addr)
{
	*(volatile u16 __force *) addr = b;
}
#endif

#ifndef __raw_writel
static inline void __raw_writel(u32 b, volatile void __iomem *addr)
{
	*(volatile u32 __force *) addr = b;
}
#endif

#define writeb __raw_writeb
#define writew(b,addr) __raw_writew(__cpu_to_le16(b),addr)
#define writel(b,addr) __raw_writel(__cpu_to_le32(b),addr)

#define in_be16(a)	__be16_to_cpu(__raw_readw(a))
#define in_be32(a)	__be32_to_cpu(__raw_readl(a))
#define out_be16(a, v)	__raw_writew(__cpu_to_be16(v), a)
#define out_be32(a, v)	__raw_writel(__cpu_to_be32(v), a)

#ifdef CONFIG_64BIT
#define IOMEM(addr)	((void __force __iomem *)PHYS_TO_XKSEG_UNCACHED(addr))
#else
#define IOMEM(addr)	((void __force __iomem *)CKSEG1ADDR(addr))
#endif

#include <asm-generic/io.h>

#endif	/* __ASM_MIPS_IO_H */
