diff options
Diffstat (limited to 'include/asm-arm/arch-s3c24x0/memory.h')
| -rw-r--r-- | include/asm-arm/arch-s3c24x0/memory.h | 162 |
1 files changed, 0 insertions, 162 deletions
diff --git a/include/asm-arm/arch-s3c24x0/memory.h b/include/asm-arm/arch-s3c24x0/memory.h deleted file mode 100644 index 61d62707c7..0000000000 --- a/include/asm-arm/arch-s3c24x0/memory.h +++ /dev/null @@ -1,162 +0,0 @@ -/* - * linux/include/asm-arm/arch-s3c2400/memory.h by garyj@denx.de - * based on - * linux/include/asm-arm/arch-sa1100/memory.h - * - * Copyright (c) 1999 Nicolas Pitre <nico@visuaide.com> - */ - -#ifndef __ASM_ARCH_MEMORY_H -#define __ASM_ARCH_MEMORY_H - - -/* - * Task size: 3GB - */ -#define TASK_SIZE (0xc0000000UL) -#define TASK_SIZE_26 (0x04000000UL) - -/* - * This decides where the kernel will search for a free chunk of vm - * space during mmap's. - */ -#define TASK_UNMAPPED_BASE (TASK_SIZE / 3) - -/* - * Page offset: 3GB - */ -#define PAGE_OFFSET (0xc0000000UL) - -/* - * Physical DRAM offset is 0x0c000000 on the S3C2400 - */ -#define PHYS_OFFSET (0x0c000000UL) - -#include <linux/config.h> - - -/* Modified for S3C2400, by chc, 20010509 */ -#define RAM_IN_BANK_0 32*1024*1024 -#define RAM_IN_BANK_1 0 -#define RAM_IN_BANK_2 0 -#define RAM_IN_BANK_3 0 - -#define MEM_SIZE (RAM_IN_BANK_0+RAM_IN_BANK_1+RAM_IN_BANK_2+RAM_IN_BANK_3) - - -/* translation macros */ -#define __virt_to_phys__is_a_macro -#define __phys_to_virt__is_a_macro - -#if (RAM_IN_BANK_1 + RAM_IN_BANK_2 + RAM_IN_BANK_3 == 0) - -#define __virt_to_phys(x) ( (x) - PAGE_OFFSET + 0x0c000000 ) -#define __phys_to_virt(x) ( (x) - 0x0c000000 + PAGE_OFFSET ) - -#elif (RAM_IN_BANK_0 == RAM_IN_BANK_1) && \ - (RAM_IN_BANK_2 + RAM_IN_BANK_3 == 0) - -/* Two identical banks */ -#define __virt_to_phys(x) \ - ( ((x) < PAGE_OFFSET+RAM_IN_BANK_0) ? \ - ((x) - PAGE_OFFSET + _DRAMBnk0) : \ - ((x) - PAGE_OFFSET - RAM_IN_BANK_0 + _DRAMBnk1) ) -#define __phys_to_virt(x) \ - ( ((x)&0x07ffffff) + \ - (((x)&0x08000000) ? PAGE_OFFSET+RAM_IN_BANK_0 : PAGE_OFFSET) ) -#else - -/* It's more efficient for all other cases to use the function call */ -#undef __virt_to_phys__is_a_macro -#undef __phys_to_virt__is_a_macro -extern unsigned long __virt_to_phys(unsigned long vpage); -extern unsigned long __phys_to_virt(unsigned long ppage); - -#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__is_a_macro -#define __virt_to_bus(x) __virt_to_phys(x) -#define __bus_to_virt__is_a_macro -#define __bus_to_virt(x) __phys_to_virt(x) - - -#ifdef CONFIG_DISCONTIGMEM -#error "CONFIG_DISCONTIGMEM will not work on S3C2400" -/* - * Because of the wide memory address space between physical RAM banks on the - * SA1100, it's much more 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 - */ - -#define NR_NODES 4 - -/* - * Given a kernel address, find the home node of the underlying memory. - */ -#define KVADDR_TO_NID(addr) \ - (((unsigned long)(addr) - 0xc0000000) >> 27) - -/* - * Given a physical address, convert it to a node id. - */ -#define PHYS_TO_NID(addr) KVADDR_TO_NID(__phys_to_virt(addr)) - -/* - * Given a kaddr, ADDR_TO_MAPBASE finds the owning node of the memory - * and returns the mem_map of that node. - */ -#define ADDR_TO_MAPBASE(kaddr) \ - NODE_MEM_MAP(KVADDR_TO_NID((unsigned long)(kaddr))) - -/* - * 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(kvaddr) \ - (((unsigned long)(kvaddr) & 0x07ffffff) >> PAGE_SHIFT) - -/* - * Given a kaddr, virt_to_page returns a pointer to the corresponding - * mem_map entry. - */ -#define virt_to_page(kaddr) \ - (ADDR_TO_MAPBASE(kaddr) + LOCAL_MAP_NR(kaddr)) - -/* - * 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. - */ -#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) ); \ -}) - -#else - -#define PHYS_TO_NID(addr) (0) - -#endif -#endif /* __ASM_ARCH_MEMORY_H */ |
