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Diffstat (limited to 'include/asm-arm/arch-sa1100/memory.h')
| -rw-r--r-- | include/asm-arm/arch-sa1100/memory.h | 108 |
1 files changed, 0 insertions, 108 deletions
diff --git a/include/asm-arm/arch-sa1100/memory.h b/include/asm-arm/arch-sa1100/memory.h deleted file mode 100644 index 32d3d5bde34..00000000000 --- a/include/asm-arm/arch-sa1100/memory.h +++ /dev/null @@ -1,108 +0,0 @@ -/* - * linux/include/asm-arm/arch-sa1100/memory.h - * - * Copyright (C) 1999-2000 Nicolas Pitre <nico@cam.org> - */ - -#ifndef __ASM_ARCH_MEMORY_H -#define __ASM_ARCH_MEMORY_H - -#include <linux/config.h> -#include <asm/sizes.h> - -/* - * Physical DRAM offset is 0xc0000000 on the SA1100 - */ -#define PHYS_OFFSET (0xc0000000UL) - -#ifndef __ASSEMBLY__ - -#ifdef CONFIG_SA1111 -static inline void -__arch_adjust_zones(int node, unsigned long *size, unsigned long *holes) -{ - unsigned int sz = SZ_1M >> PAGE_SHIFT; - - if (node != 0) - sz = 0; - - size[1] = size[0] - sz; - size[0] = sz; -} - -#define arch_adjust_zones(node, size, holes) \ - __arch_adjust_zones(node, size, holes) - -#define ISA_DMA_THRESHOLD (PHYS_OFFSET + SZ_1M - 1) - -#endif -#endif - -/* - * Virtual view <-> DMA view memory address translations - * virt_to_bus: Used to translate the virtual address to an - * address suitable to be passed to set_dma_addr - * bus_to_virt: Used to convert an address for DMA operations - * to an address that the kernel can use. - * - * On the SA1100, bus addresses are equivalent to physical addresses. - */ -#define __virt_to_bus(x) __virt_to_phys(x) -#define __bus_to_virt(x) __phys_to_virt(x) - -#ifdef CONFIG_DISCONTIGMEM -/* - * Because of the wide memory address space between physical RAM banks on the - * SA1100, it's much convenient to use Linux's NUMA support to implement our - * memory map representation. Assuming all memory nodes have equal access - * characteristics, we then have generic discontiguous memory support. - * - * Of course, all this isn't mandatory for SA1100 implementations with only - * one used memory bank. For those, simply undefine CONFIG_DISCONTIGMEM. - * - * The nodes are matched with the physical memory bank addresses which are - * incidentally the same as virtual addresses. - * - * node 0: 0xc0000000 - 0xc7ffffff - * node 1: 0xc8000000 - 0xcfffffff - * node 2: 0xd0000000 - 0xd7ffffff - * node 3: 0xd8000000 - 0xdfffffff - */ - -/* - * Given a kernel address, find the home node of the underlying memory. - */ -#define KVADDR_TO_NID(addr) (((unsigned long)(addr) - PAGE_OFFSET) >> 27) - -/* - * Given a page frame number, convert it to a node id. - */ -#define PFN_TO_NID(pfn) (((pfn) - PHYS_PFN_OFFSET) >> (27 - PAGE_SHIFT)) - -/* - * Given a kaddr, ADDR_TO_MAPBASE finds the owning node of the memory - * and return the mem_map of that node. - */ -#define ADDR_TO_MAPBASE(kaddr) NODE_MEM_MAP(KVADDR_TO_NID(kaddr)) - -/* - * Given a page frame number, find the owning node of the memory - * and return the mem_map of that node. - */ -#define PFN_TO_MAPBASE(pfn) NODE_MEM_MAP(PFN_TO_NID(pfn)) - -/* - * Given a kaddr, LOCAL_MEM_MAP finds the owning node of the memory - * and returns the index corresponding to the appropriate page in the - * node's mem_map. - */ -#define LOCAL_MAP_NR(addr) \ - (((unsigned long)(addr) & 0x07ffffff) >> PAGE_SHIFT) - -#else - -#define PFN_TO_NID(addr) (0) - -#endif - -#endif |
