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- /*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 1996 by Ralf Baechle
- * Copyright (C) 2000 by Maciej W. Rozycki
- *
- * Defitions for the address spaces of the MIPS CPUs.
- */
- #ifndef __ASM_MIPS_ADDRSPACE_H
- #define __ASM_MIPS_ADDRSPACE_H
- /*
- * Memory segments (32bit kernel mode addresses)
- */
- #define KUSEG 0x00000000
- #define KSEG0 0x80000000
- #define KSEG1 0xa0000000
- #define KSEG2 0xc0000000
- #define KSEG3 0xe0000000
- #define K0BASE KSEG0
- /*
- * Returns the kernel segment base of a given address
- */
- #ifndef __ASSEMBLY__
- #define KSEGX(a) (((unsigned long)(a)) & 0xe0000000)
- #else
- #define KSEGX(a) ((a) & 0xe0000000)
- #endif
- /*
- * Returns the physical address of a KSEG0/KSEG1 address
- */
- #ifndef __ASSEMBLY__
- #define PHYSADDR(a) (((unsigned long)(a)) & 0x1fffffff)
- #else
- #define PHYSADDR(a) ((a) & 0x1fffffff)
- #endif
- /*
- * Returns the uncached address of a sdram address
- */
- #ifndef __ASSEMBLY__
- #ifdef CONFIG_AU1X00
- /* We use a 36 bit physical address map here and
- cannot access physical memory directly from core */
- #define UNCACHED_SDRAM(a) (((unsigned long)(a)) | 0x20000000)
- #else /* !CONFIG_AU1X00 */
- #define UNCACHED_SDRAM(a) PHYSADDR(a)
- #endif /* CONFIG_AU1X00 */
- #endif /* __ASSEMBLY__ */
- /*
- * Map an address to a certain kernel segment
- */
- #ifndef __ASSEMBLY__
- #define KSEG0ADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | KSEG0))
- #define KSEG1ADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | KSEG1))
- #define KSEG2ADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | KSEG2))
- #define KSEG3ADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | KSEG3))
- #else
- #define KSEG0ADDR(a) (((a) & 0x1fffffff) | KSEG0)
- #define KSEG1ADDR(a) (((a) & 0x1fffffff) | KSEG1)
- #define KSEG2ADDR(a) (((a) & 0x1fffffff) | KSEG2)
- #define KSEG3ADDR(a) (((a) & 0x1fffffff) | KSEG3)
- #endif
- /*
- * Memory segments (64bit kernel mode addresses)
- */
- #define XKUSEG 0x0000000000000000
- #define XKSSEG 0x4000000000000000
- #define XKPHYS 0x8000000000000000
- #define XKSEG 0xc000000000000000
- #define CKSEG0 0xffffffff80000000
- #define CKSEG1 0xffffffffa0000000
- #define CKSSEG 0xffffffffc0000000
- #define CKSEG3 0xffffffffe0000000
- #endif /* __ASM_MIPS_ADDRSPACE_H */
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