/* * 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, 99 Ralf Baechle * Copyright (C) 2000, 2002  Maciej W. Rozycki * Copyright (C) 1990, 1999 by Silicon Graphics, Inc. */#ifndef _ASM_ADDRSPACE_H#define _ASM_ADDRSPACE_H #include <spaces.h> /* *  Configure language */#ifdef __ASSEMBLY__#define _ATYPE_#define _ATYPE32_#define _ATYPE64_#define _LLCONST_(x)	x#else#define _ATYPE_		__PTRDIFF_TYPE__#define _ATYPE32_	int#define _ATYPE64_	long long#define _LLCONST_(x)	x ## LL#endif /* *  32-bit MIPS address spaces */#ifdef __ASSEMBLY__#define _ACAST32_#define _ACAST64_#else#define _ACAST32_		(_ATYPE_)(_ATYPE32_)	/* widen if necessary */#define _ACAST64_		(_ATYPE64_)		/* do _not_ narrow */#endif /* * Returns the kernel segment base of a given address */#define KSEGX(a)		((_ACAST32_ (a)) & 0xe0000000) /* * Returns the physical address of a CKSEGx / XKPHYS address */#define CPHYSADDR(a)		((_ACAST32_(a)) & 0x1fffffff)#define XPHYSADDR(a)            ((_ACAST64_(a)) &			\				 _LLCONST_(0x000000ffffffffff)) #ifdef CONFIG_64BIT /* * Memory segments (64bit kernel mode addresses) * The compatibility segments use the full 64-bit sign extended value.  Note * the R8000 doesn't have them so don't reference these in generic MIPS code. */#define XKUSEG			_LLCONST_(0x0000000000000000)#define XKSSEG			_LLCONST_(0x4000000000000000)#define XKPHYS			_LLCONST_(0x8000000000000000)#define XKSEG			_LLCONST_(0xc000000000000000)#define CKSEG0			_LLCONST_(0xffffffff80000000)#define CKSEG1			_LLCONST_(0xffffffffa0000000)#define CKSSEG			_LLCONST_(0xffffffffc0000000)#define CKSEG3			_LLCONST_(0xffffffffe0000000) #define CKSEG0ADDR(a)		(CPHYSADDR(a) | CKSEG0)#define CKSEG1ADDR(a)		(CPHYSADDR(a) | CKSEG1)#define CKSEG2ADDR(a)		(CPHYSADDR(a) | CKSEG2)#define CKSEG3ADDR(a)		(CPHYSADDR(a) | CKSEG3) #else #define CKSEG0ADDR(a)		(CPHYSADDR(a) | KSEG0)#define CKSEG1ADDR(a)		(CPHYSADDR(a) | KSEG1)#define CKSEG2ADDR(a)		(CPHYSADDR(a) | KSEG2)#define CKSEG3ADDR(a)		(CPHYSADDR(a) | KSEG3) /* * Map an address to a certain kernel segment */#define KSEG0ADDR(a)		(CPHYSADDR(a) | KSEG0)#define KSEG1ADDR(a)		(CPHYSADDR(a) | KSEG1)#define KSEG2ADDR(a)		(CPHYSADDR(a) | KSEG2)#define KSEG3ADDR(a)		(CPHYSADDR(a) | KSEG3) /* * Memory segments (32bit kernel mode addresses) * These are the traditional names used in the 32-bit universe. */#define KUSEG			0x00000000#define KSEG0			0x80000000#define KSEG1			0xa0000000#define KSEG2			0xc0000000#define KSEG3			0xe0000000 #define CKUSEG			0x00000000#define CKSEG0			0x80000000#define CKSEG1			0xa0000000#define CKSEG2			0xc0000000#define CKSEG3			0xe0000000 #endif /* * Cache modes for XKPHYS address conversion macros */#define K_CALG_COH_EXCL1_NOL2	0#define K_CALG_COH_SHRL1_NOL2	1#define K_CALG_UNCACHED		2#define K_CALG_NONCOHERENT	3#define K_CALG_COH_EXCL		4#define K_CALG_COH_SHAREABLE	5#define K_CALG_NOTUSED		6#define K_CALG_UNCACHED_ACCEL	7 /* * 64-bit address conversions */#define PHYS_TO_XKSEG_UNCACHED(p)	PHYS_TO_XKPHYS(K_CALG_UNCACHED,(p))#define PHYS_TO_XKSEG_CACHED(p)		PHYS_TO_XKPHYS(K_CALG_COH_SHAREABLE,(p))#define XKPHYS_TO_PHYS(p)		((p) & TO_PHYS_MASK)#define PHYS_TO_XKPHYS(cm,a)		(_LLCONST_(0x8000000000000000) | \					 ((cm)<<59) | (a)) #if defined (CONFIG_CPU_R4300)						\    || defined (CONFIG_CPU_R4X00)					\    || defined (CONFIG_CPU_R5000)					\    || defined (CONFIG_CPU_RM7000)					\    || defined (CONFIG_CPU_NEVADA)					\    || defined (CONFIG_CPU_TX49XX)					\    || defined (CONFIG_CPU_MIPS64)#define TO_PHYS_MASK	_LLCONST_(0x0000000fffffffff)	/* 2^^36 - 1 */#endif #if defined (CONFIG_CPU_R8000)/* We keep KUSIZE consistent with R4000 for now (2^^40) instead of (2^^48) */#define TO_PHYS_MASK	_LLCONST_(0x000000ffffffffff)	/* 2^^40 - 1 */#endif #if defined (CONFIG_CPU_R10000)#define TO_PHYS_MASK	_LLCONST_(0x000000ffffffffff)	/* 2^^40 - 1 */#endif #if defined(CONFIG_CPU_SB1) || defined(CONFIG_CPU_SB1A)#define TO_PHYS_MASK	_LLCONST_(0x00000fffffffffff)	/* 2^^44 - 1 */#endif #ifndef CONFIG_CPU_R8000 /* * The R8000 doesn't have the 32-bit compat spaces so we don't define them * in order to catch bugs in the source code. */ #define COMPAT_K1BASE32		_LLCONST_(0xffffffffa0000000)#define PHYS_TO_COMPATK1(x)	((x) | COMPAT_K1BASE32) /* 32-bit compat k1 */ #endif #define KDM_TO_PHYS(x)		(_ACAST64_ (x) & TO_PHYS_MASK)#define PHYS_TO_K0(x)		(_ACAST64_ (x) | CAC_BASE) #endif /* _ASM_ADDRSPACE_H */