/* * 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 _CONST64_(x) x #else #define _ATYPE_ __PTRDIFF_TYPE__ #define _ATYPE32_ int #define _ATYPE64_ __s64 #ifdef CONFIG_64BIT #define _CONST64_(x) x ## L #else #define _CONST64_(x) x ## LL #endif #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)) & _ACAST32_(0xe0000000)) /* * Returns the physical address of a CKSEGx / XKPHYS address */ #define CPHYSADDR(a) ((_ACAST32_(a)) & 0x1fffffff) #define XPHYSADDR(a) ((_ACAST64_(a)) & \ _CONST64_(0x0000ffffffffffff)) #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 _CONST64_(0x0000000000000000) #define XKSSEG _CONST64_(0x4000000000000000) #define XKPHYS _CONST64_(0x8000000000000000) #define XKSEG _CONST64_(0xc000000000000000) #define CKSEG0 _CONST64_(0xffffffff80000000) #define CKSEG1 _CONST64_(0xffffffffa0000000) #define CKSSEG _CONST64_(0xffffffffc0000000) #define CKSEG3 _CONST64_(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) (XKPHYS | (_ACAST64_(cm) << 59) | (a)) /* * The ultimate limited of the 64-bit MIPS architecture: 2 bits for selecting * the region, 3 bits for the CCA mode. This leaves 59 bits of which the * R8000 implements most with its 48-bit physical address space. */ #define TO_PHYS_MASK _CONST64_(0x07ffffffffffffff) /* 2^^59 - 1 */ #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 _CONST64_(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 */Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ralf Bächle | 250 | 64.94% | 6 | 40.00% |
| Linus Torvalds (pre-git) | 54 | 14.03% | 1 | 6.67% |
| Linus Torvalds | 31 | 8.05% | 1 | 6.67% |
| Atsushi Nemoto | 26 | 6.75% | 1 | 6.67% |
| Maciej W. Rozycki | 15 | 3.90% | 2 | 13.33% |
| Andrew Morton | 6 | 1.56% | 1 | 6.67% |
| Huacai Chen | 1 | 0.26% | 1 | 6.67% |
| James Hogan | 1 | 0.26% | 1 | 6.67% |
| Paul Burton | 1 | 0.26% | 1 | 6.67% |
| Total | 385 | 100.00% | 15 | 100.00% |