diff options
Diffstat (limited to 'arch/parisc/include/asm/fixmap.h')
-rw-r--r-- | arch/parisc/include/asm/fixmap.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/parisc/include/asm/fixmap.h b/arch/parisc/include/asm/fixmap.h new file mode 100644 index 000000000000..de3fe3a18229 --- /dev/null +++ b/arch/parisc/include/asm/fixmap.h | |||
@@ -0,0 +1,30 @@ | |||
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 | |||
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*/ | ||