projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | #ifndef _ASM_FIXMAP_H |
| 2 | #define _ASM_FIXMAP_H | |
| 3 | ||
| 4 | /* | |
| 5 | * This file defines the locations of the fixed mappings on parisc. | |
| 6 | * | |
| 7 | * All of the values in this file are machine virtual addresses. | |
| 8 | * | |
| 9 | * All of the values in this file must be <4GB (because of assembly | |
| 10 | * loading restrictions). If you place this region anywhere above | |
| 11 | * __PAGE_OFFSET, you must adjust the memory map accordingly */ | |
| 12 | ||
| 13 | /* The alias region is used in kernel space to do copy/clear to or | |
| 14 | * from areas congruently mapped with user space. It is 8MB large | |
| 15 | * and must be 16MB aligned */ | |
| 16 | #define TMPALIAS_MAP_START ((__PAGE_OFFSET) - 16*1024*1024) | |
| 17 | /* This is the kernel area for all maps (vmalloc, dma etc.) most | |
| 18 | * usually, it extends up to TMPALIAS_MAP_START. Virtual addresses | |
| 19 | * 0..GATEWAY_PAGE_SIZE are reserved for the gateway page */ | |
| 20 | #define KERNEL_MAP_START (GATEWAY_PAGE_SIZE) | |
| 21 | #define KERNEL_MAP_END (TMPALIAS_MAP_START) | |
| 22 | ||
| d912e1dc KM |
23 | #ifndef __ASSEMBLY__ |
| 24 | extern void *vmalloc_start; | |
| 25 | #define PCXL_DMA_MAP_SIZE (8*1024*1024) | |
| 26 | #define VMALLOC_START ((unsigned long)vmalloc_start) | |
| 27 | #define VMALLOC_END (KERNEL_MAP_END) | |
| 28 | #endif /*__ASSEMBLY__*/ | |
| 29 | ||
| 30 | #endif /*_ASM_FIXMAP_H*/ |