projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | #ifndef _SPARC_VADDRS_H |
| 2 | #define _SPARC_VADDRS_H | |
| 3 | ||
| 4 | #include <asm/head.h> | |
| 5 | ||
| 6 | /* | |
| a439fe51 | 7 | * asm/vaddrs.h: Here we define the virtual addresses at |
| 1da177e4 LT |
8 | * which important things will be mapped. |
| 9 | * | |
| 10 | * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) | |
| 11 | * Copyright (C) 2000 Anton Blanchard (anton@samba.org) | |
| 12 | */ | |
| 13 | ||
| 14 | #define SRMMU_MAXMEM 0x0c000000 | |
| 15 | ||
| 16 | #define SRMMU_NOCACHE_VADDR (KERNBASE + SRMMU_MAXMEM) | |
| 17 | /* = 0x0fc000000 */ | |
| 18 | /* XXX Empiricals - this needs to go away - KMW */ | |
| 19 | #define SRMMU_MIN_NOCACHE_PAGES (550) | |
| 20 | #define SRMMU_MAX_NOCACHE_PAGES (1280) | |
| 21 | ||
| 22 | /* The following constant is used in mm/srmmu.c::srmmu_nocache_calcsize() | |
| 23 | * to determine the amount of memory that will be reserved as nocache: | |
| 24 | * | |
| 25 | * 256 pages will be taken as nocache per each | |
| 26 | * SRMMU_NOCACHE_ALCRATIO MB of system memory. | |
| 27 | * | |
| 28 | * limits enforced: nocache minimum = 256 pages | |
| 29 | * nocache maximum = 1280 pages | |
| 30 | */ | |
| 31 | #define SRMMU_NOCACHE_ALCRATIO 64 /* 256 pages per 64MB of system RAM */ | |
| 32 | ||
| 1b6d06d8 SR |
33 | #ifndef __ASSEMBLY__ |
| 34 | #include <asm/kmap_types.h> | |
| 35 | ||
| 36 | enum fixed_addresses { | |
| 37 | FIX_HOLE, | |
| 38 | #ifdef CONFIG_HIGHMEM | |
| 39 | FIX_KMAP_BEGIN, | |
| 40 | FIX_KMAP_END = (KM_TYPE_NR * NR_CPUS), | |
| 41 | #endif | |
| 42 | __end_of_fixed_addresses | |
| 43 | }; | |
| 44 | #endif | |
| 45 | ||
| 46 | /* Leave one empty page between IO pages at 0xfd000000 and | |
| 47 | * the top of the fixmap. | |
| 48 | */ | |
| 49 | #define FIXADDR_TOP (0xfcfff000UL) | |
| 50 | #define FIXADDR_SIZE ((FIX_KMAP_END + 1) << PAGE_SHIFT) | |
| 51 | #define FIXADDR_START (FIXADDR_TOP - FIXADDR_SIZE) | |
| 52 | ||
| 53 | #define __fix_to_virt(x) (FIXADDR_TOP - ((x) << PAGE_SHIFT)) | |
| 54 | ||
| 1da177e4 LT |
55 | #define SUN4M_IOBASE_VADDR 0xfd000000 /* Base for mapping pages */ |
| 56 | #define IOBASE_VADDR 0xfe000000 | |
| 57 | #define IOBASE_END 0xfe600000 | |
| 58 | ||
| 1da177e4 LT |
59 | #define KADB_DEBUGGER_BEGVM 0xffc00000 /* Where kern debugger is in virt-mem */ |
| 60 | #define KADB_DEBUGGER_ENDVM 0xffd00000 | |
| 61 | #define DEBUG_FIRSTVADDR KADB_DEBUGGER_BEGVM | |
| 62 | #define DEBUG_LASTVADDR KADB_DEBUGGER_ENDVM | |
| 63 | ||
| 64 | #define LINUX_OPPROM_BEGVM 0xffd00000 | |
| 65 | #define LINUX_OPPROM_ENDVM 0xfff00000 | |
| 66 | ||
| 67 | #define DVMA_VADDR 0xfff00000 /* Base area of the DVMA on suns */ | |
| 68 | #define DVMA_END 0xfffc0000 | |
| 69 | ||
| 70 | #endif /* !(_SPARC_VADDRS_H) */ |