| #ifndef _ASM_FIXMAP_H |
| #define _ASM_FIXMAP_H |
| |
| /* |
| * This file defines the locations of the fixed mappings on parisc. |
| * |
| * All of the values in this file are machine virtual addresses. |
| * |
| * All of the values in this file must be <4GB (because of assembly |
| * loading restrictions). If you place this region anywhere above |
| * __PAGE_OFFSET, you must adjust the memory map accordingly */ |
| |
| /* The alias region is used in kernel space to do copy/clear to or |
| * from areas congruently mapped with user space. It is 8MB large |
| * and must be 16MB aligned */ |
| #define TMPALIAS_MAP_START ((__PAGE_OFFSET) - 16*1024*1024) |
| /* This is the kernel area for all maps (vmalloc, dma etc.) most |
| * usually, it extends up to TMPALIAS_MAP_START. Virtual addresses |
| * 0..GATEWAY_PAGE_SIZE are reserved for the gateway page */ |
| #define KERNEL_MAP_START (GATEWAY_PAGE_SIZE) |
| #define KERNEL_MAP_END (TMPALIAS_MAP_START) |
| |
| #ifndef __ASSEMBLY__ |
| extern void *parisc_vmalloc_start; |
| #define PCXL_DMA_MAP_SIZE (8*1024*1024) |
| #define VMALLOC_START ((unsigned long)parisc_vmalloc_start) |
| #define VMALLOC_END (KERNEL_MAP_END) |
| #endif /*__ASSEMBLY__*/ |
| |
| #endif /*_ASM_FIXMAP_H*/ |
