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Diffstat (limited to 'include/asm-arm/memory.h')
-rw-r--r-- | include/asm-arm/memory.h | 137 |
1 files changed, 0 insertions, 137 deletions
diff --git a/include/asm-arm/memory.h b/include/asm-arm/memory.h deleted file mode 100644 index c3b2afd..0000000 --- a/include/asm-arm/memory.h +++ /dev/null @@ -1,137 +0,0 @@ -/* - * linux/include/asm-arm/memory.h - * - * Copyright (C) 2000-2002 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * Note: this file should not be included by non-asm/.h files - */ -#ifndef __ASM_ARM_MEMORY_H -#define __ASM_ARM_MEMORY_H - -#if 0 /* XXX###XXX */ - -#include <linux/config.h> -#include <asm/arch/memory.h> - -/* - * PFNs are used to describe any physical page; this means - * PFN 0 == physical address 0. - * - * This is the PFN of the first RAM page in the kernel - * direct-mapped view. We assume this is the first page - * of RAM in the mem_map as well. - */ -#define PHYS_PFN_OFFSET (PHYS_OFFSET >> PAGE_SHIFT) - -/* - * These are *only* valid on the kernel direct mapped RAM memory. - */ -static inline unsigned long virt_to_phys(void *x) -{ - return __virt_to_phys((unsigned long)(x)); -} - -static inline void *phys_to_virt(unsigned long x) -{ - return (void *)(__phys_to_virt((unsigned long)(x))); -} - -#define __pa(x) __virt_to_phys((unsigned long)(x)) -#define __va(x) ((void *)__phys_to_virt((unsigned long)(x))) - -/* - * Virtual <-> DMA view memory address translations - * Again, these are *only* valid on the kernel direct mapped RAM - * memory. Use of these is *depreciated*. - */ -#define virt_to_bus(x) (__virt_to_bus((unsigned long)(x))) -#define bus_to_virt(x) ((void *)(__bus_to_virt((unsigned long)(x)))) - -/* - * Conversion between a struct page and a physical address. - * - * Note: when converting an unknown physical address to a - * struct page, the resulting pointer must be validated - * using VALID_PAGE(). It must return an invalid struct page - * for any physical address not corresponding to a system - * RAM address. - * - * page_to_pfn(page) convert a struct page * to a PFN number - * pfn_to_page(pfn) convert a _valid_ PFN number to struct page * - * pfn_valid(pfn) indicates whether a PFN number is valid - * - * virt_to_page(k) convert a _valid_ virtual address to struct page * - * virt_addr_valid(k) indicates whether a virtual address is valid - */ -#ifndef CONFIG_DISCONTIGMEM - -#define page_to_pfn(page) (((page) - mem_map) + PHYS_PFN_OFFSET) -#define pfn_to_page(pfn) ((mem_map + (pfn)) - PHYS_PFN_OFFSET) -#define pfn_valid(pfn) ((pfn) >= PHYS_PFN_OFFSET && (pfn) < (PHYS_PFN_OFFSET + max_mapnr)) - -#define virt_to_page(kaddr) (pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)) -#define virt_addr_valid(kaddr) ((kaddr) >= PAGE_OFFSET && (kaddr) < (unsigned long)high_memory) - -#define PHYS_TO_NID(addr) (0) - -#define VALID_PAGE(page) ((page - mem_map) < max_mapnr) - -#else - -/* - * This is more complex. We have a set of mem_map arrays spread - * around in memory. - */ -#define page_to_pfn(page) \ - (((page) - page_zone(page)->zone_mem_map) \ - + (page_zone(page)->zone_start_paddr >> PAGE_SHIFT)) - -#define pfn_to_page(pfn) \ - (PFN_TO_MAPBASE(pfn) + LOCAL_MAP_NR((pfn) << PAGE_SHIFT)) - -#define pfn_valid(pfn) \ - ({ \ - unsigned int node = PFN_TO_NID(pfn); \ - struct pglist_data *nd = NODE_DATA(node); \ - ((node < NR_NODES) && \ - ((pfn - (nd->node_start_paddr >> PAGE_SHIFT)) < nd->node_size));\ - }) - -#define virt_to_page(kaddr) \ - (ADDR_TO_MAPBASE(kaddr) + LOCAL_MAP_NR(kaddr)) - -#define virt_addr_valid(kaddr) (KVADDR_TO_NID(kaddr) < NR_NODES) - -/* - * Common discontigmem stuff. - * PHYS_TO_NID is used by the ARM kernel/setup.c - */ -#define PHYS_TO_NID(addr) PFN_TO_NID((addr) >> PAGE_SHIFT) - -/* - * 2.4 compatibility - * - * VALID_PAGE returns a non-zero value if given page pointer is valid. - * This assumes all node's mem_maps are stored within the node they - * refer to. This is actually inherently buggy. - */ -#define VALID_PAGE(page) \ -({ unsigned int node = KVADDR_TO_NID(page); \ - ((node < NR_NODES) && \ - ((unsigned)((page) - NODE_MEM_MAP(node)) < NODE_DATA(node)->node_size)); \ -}) - -#endif - -/* - * We should really eliminate virt_to_bus() here - it's depreciated. - */ -#define page_to_bus(page) (virt_to_bus(page_address(page))) - -#endif /* XXX###XXX */ - -#endif /* __ASM_ARM_MEMORY_H */ |