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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/arch/avr32/include/asm/addrspace.h
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/*

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 * Defitions for the address spaces of the AVR32 CPUs. Heavily based on

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 * include/asm-sh/addrspace.h

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 *

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 * Copyright (C) 2004-2006 Atmel Corporation

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 *

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 * This program is free software; you can redistribute it and/or modify

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 * it under the terms of the GNU General Public License version 2 as

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 * published by the Free Software Foundation.

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 */

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#ifndef __ASM_AVR32_ADDRSPACE_H

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#define __ASM_AVR32_ADDRSPACE_H

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#ifdef CONFIG_MMU

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/* Memory segments when segmentation is enabled */

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#define P0SEG		0x00000000

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#define P1SEG		0x80000000

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#define P2SEG		0xa0000000

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#define P3SEG		0xc0000000

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#define P4SEG		0xe0000000

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/* Returns the privileged segment base of a given address */

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#define PXSEG(a)	(((unsigned long)(a)) & 0xe0000000)

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/* Returns the physical address of a PnSEG (n=1,2) address */

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#define PHYSADDR(a)	(((unsigned long)(a)) & 0x1fffffff)

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/*

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 * Map an address to a certain privileged segment

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 */

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#define P1SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) \

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				      | P1SEG))

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#define P2SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) \

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				      | P2SEG))

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#define P3SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) \

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				      | P3SEG))

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#define P4SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) \

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				      | P4SEG))

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#endif /* CONFIG_MMU */

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#endif /* __ASM_AVR32_ADDRSPACE_H */

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