IB/mthca: Query port fix
[linux-2.6/verdex.git] / include / asm-arm / arch-aaec2000 / memory.h
blob24b51cccde8f270ce7efe2a70d7481706e6996ed
1 /*
2 * linux/include/asm-arm/arch-aaec2000/memory.h
4 * Copyright (c) 2005 Nicolas Bellido Y Ortega
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
11 #ifndef __ASM_ARCH_MEMORY_H
12 #define __ASM_ARCH_MEMORY_H
15 #define PHYS_OFFSET UL(0xf0000000)
17 #define __virt_to_bus(x) __virt_to_phys(x)
18 #define __bus_to_virt(x) __phys_to_virt(x)
20 #ifdef CONFIG_DISCONTIGMEM
23 * The nodes are the followings:
25 * node 0: 0xf000.0000 - 0xf3ff.ffff
26 * node 1: 0xf400.0000 - 0xf7ff.ffff
27 * node 2: 0xf800.0000 - 0xfbff.ffff
28 * node 3: 0xfc00.0000 - 0xffff.ffff
32 * Given a kernel address, find the home node of the underlying memory.
34 #define KVADDR_TO_NID(addr) \
35 (((unsigned long)(addr) - PAGE_OFFSET) >> NODE_MAX_MEM_SHIFT)
38 * Given a page frame number, convert it to a node id.
40 #define PFN_TO_NID(pfn) \
41 (((pfn) - PHYS_PFN_OFFSET) >> (NODE_MAX_MEM_SHIFT - PAGE_SHIFT))
44 * Given a kaddr, ADDR_TO_MAPBASE finds the owning node of the memory
45 * and return the mem_map of that node.
47 #define ADDR_TO_MAPBASE(kaddr) NODE_MEM_MAP(KVADDR_TO_NID(kaddr))
50 * Given a page frame number, find the owning node of the memory
51 * and return the mem_map of that node.
53 #define PFN_TO_MAPBASE(pfn) NODE_MEM_MAP(PFN_TO_NID(pfn))
56 * Given a kaddr, LOCAL_MEM_MAP finds the owning node of the memory
57 * and returns the index corresponding to the appropriate page in the
58 * node's mem_map.
60 #define LOCAL_MAP_NR(addr) \
61 (((unsigned long)(addr) & (NODE_MAX_MEM_SIZE - 1)) >> PAGE_SHIFT)
63 #define NODE_MAX_MEM_SHIFT 26
64 #define NODE_MAX_MEM_SIZE (1 << NODE_MAX_MEM_SHIFT)
66 #endif /* CONFIG_DISCONTIGMEM */
68 #endif /* __ASM_ARCH_MEMORY_H */