* Patch by Murray Jensen, 24 Jun 2003: - make sure to use only U-boot provided header files - fix problems with ".rodata.str1.4" section as used by GCC-3.xmaster
wdenk
21 years ago
parent
a300d83cb8
commit
b783edaee8
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/*
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* linux/include/asm-arm/arch-s3c2400/memory.h by gj@denx.de |
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* based on |
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* linux/include/asm-arm/arch-sa1100/memory.h |
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* |
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* Copyright (c) 1999 Nicolas Pitre <nico@visuaide.com> |
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*/ |
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#ifndef __ASM_ARCH_MEMORY_H |
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#define __ASM_ARCH_MEMORY_H |
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/*
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* Task size: 3GB |
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*/ |
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#define TASK_SIZE (0xc0000000UL) |
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#define TASK_SIZE_26 (0x04000000UL) |
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/*
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* This decides where the kernel will search for a free chunk of vm |
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* space during mmap's. |
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*/ |
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#define TASK_UNMAPPED_BASE (TASK_SIZE / 3) |
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/*
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* Page offset: 3GB |
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*/ |
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#define PAGE_OFFSET (0xc0000000UL) |
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/*
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* Physical DRAM offset is 0x0c000000 on the S3C2400 |
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*/ |
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#define PHYS_OFFSET (0x0c000000UL) |
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#include <linux/config.h> |
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/* Modified for S3C2400, by chc, 20010509 */ |
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#define RAM_IN_BANK_0 32*1024*1024 |
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#define RAM_IN_BANK_1 0 |
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#define RAM_IN_BANK_2 0 |
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#define RAM_IN_BANK_3 0 |
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#define MEM_SIZE (RAM_IN_BANK_0+RAM_IN_BANK_1+RAM_IN_BANK_2+RAM_IN_BANK_3) |
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/* translation macros */ |
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#define __virt_to_phys__is_a_macro |
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#define __phys_to_virt__is_a_macro |
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#if (RAM_IN_BANK_1 + RAM_IN_BANK_2 + RAM_IN_BANK_3 == 0) |
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#define __virt_to_phys(x) ( (x) - PAGE_OFFSET + 0x0c000000 ) |
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#define __phys_to_virt(x) ( (x) - 0x0c000000 + PAGE_OFFSET ) |
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#elif (RAM_IN_BANK_0 == RAM_IN_BANK_1) && \ |
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(RAM_IN_BANK_2 + RAM_IN_BANK_3 == 0) |
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/* Two identical banks */ |
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#define __virt_to_phys(x) \ |
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( ((x) < PAGE_OFFSET+RAM_IN_BANK_0) ? \
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((x) - PAGE_OFFSET + _DRAMBnk0) : \
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((x) - PAGE_OFFSET - RAM_IN_BANK_0 + _DRAMBnk1) ) |
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#define __phys_to_virt(x) \ |
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( ((x)&0x07ffffff) + \
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(((x)&0x08000000) ? PAGE_OFFSET+RAM_IN_BANK_0 : PAGE_OFFSET) ) |
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#else |
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/* It's more efficient for all other cases to use the function call */ |
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#undef __virt_to_phys__is_a_macro |
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#undef __phys_to_virt__is_a_macro |
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extern unsigned long __virt_to_phys(unsigned long vpage); |
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extern unsigned long __phys_to_virt(unsigned long ppage); |
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#endif |
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/*
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* Virtual view <-> DMA view memory address translations |
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* virt_to_bus: Used to translate the virtual address to an |
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* address suitable to be passed to set_dma_addr |
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* bus_to_virt: Used to convert an address for DMA operations |
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* to an address that the kernel can use. |
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* |
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* On the SA1100, bus addresses are equivalent to physical addresses. |
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*/ |
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#define __virt_to_bus__is_a_macro |
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#define __virt_to_bus(x) __virt_to_phys(x) |
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#define __bus_to_virt__is_a_macro |
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#define __bus_to_virt(x) __phys_to_virt(x) |
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#ifdef CONFIG_DISCONTIGMEM |
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#error "CONFIG_DISCONTIGMEM will not work on S3C2400" |
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/*
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* Because of the wide memory address space between physical RAM banks on the
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* SA1100, it's much more convenient to use Linux's NUMA support to implement |
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* our memory map representation. Assuming all memory nodes have equal access
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* characteristics, we then have generic discontiguous memory support. |
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* |
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* Of course, all this isn't mandatory for SA1100 implementations with only |
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* one used memory bank. For those, simply undefine CONFIG_DISCONTIGMEM. |
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* |
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* The nodes are matched with the physical memory bank addresses which are
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* incidentally the same as virtual addresses. |
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*
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* node 0: 0xc0000000 - 0xc7ffffff |
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* node 1: 0xc8000000 - 0xcfffffff |
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* node 2: 0xd0000000 - 0xd7ffffff |
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* node 3: 0xd8000000 - 0xdfffffff |
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*/ |
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#define NR_NODES 4 |
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/*
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* Given a kernel address, find the home node of the underlying memory. |
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*/ |
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#define KVADDR_TO_NID(addr) \ |
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(((unsigned long)(addr) - 0xc0000000) >> 27) |
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/*
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* Given a physical address, convert it to a node id. |
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*/ |
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#define PHYS_TO_NID(addr) KVADDR_TO_NID(__phys_to_virt(addr)) |
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/*
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* Given a kaddr, ADDR_TO_MAPBASE finds the owning node of the memory |
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* and returns the mem_map of that node. |
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*/ |
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#define ADDR_TO_MAPBASE(kaddr) \ |
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NODE_MEM_MAP(KVADDR_TO_NID((unsigned long)(kaddr))) |
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/*
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* Given a kaddr, LOCAL_MEM_MAP finds the owning node of the memory |
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* and returns the index corresponding to the appropriate page in the |
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* node's mem_map. |
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*/ |
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#define LOCAL_MAP_NR(kvaddr) \ |
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(((unsigned long)(kvaddr) & 0x07ffffff) >> PAGE_SHIFT) |
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/*
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* Given a kaddr, virt_to_page returns a pointer to the corresponding
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* mem_map entry. |
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*/ |
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#define virt_to_page(kaddr) \ |
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(ADDR_TO_MAPBASE(kaddr) + LOCAL_MAP_NR(kaddr)) |
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/*
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* VALID_PAGE returns a non-zero value if given page pointer is valid. |
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* This assumes all node's mem_maps are stored within the node they refer to. |
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*/ |
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#define VALID_PAGE(page) \ |
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({ unsigned int node = KVADDR_TO_NID(page); \
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( (node < NR_NODES) && \
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((unsigned)((page) - NODE_MEM_MAP(node)) < NODE_DATA(node)->node_size) ); \
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}) |
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#else |
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#define PHYS_TO_NID(addr) (0) |
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#endif |
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#endif /* __ASM_ARCH_MEMORY_H */ |
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@ -0,0 +1,113 @@ |
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/*
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* FILE bitfield.h |
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* |
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* Version 1.1 |
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* Author Copyright (c) Marc A. Viredaz, 1998 |
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* DEC Western Research Laboratory, Palo Alto, CA |
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* Date April 1998 (April 1997) |
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* System Advanced RISC Machine (ARM) |
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* Language C or ARM Assembly |
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* Purpose Definition of macros to operate on bit fields. |
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*/ |
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#ifndef __BITFIELD_H |
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#define __BITFIELD_H |
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#ifndef __ASSEMBLY__ |
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#define UData(Data) ((unsigned long) (Data)) |
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#else |
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#define UData(Data) (Data) |
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#endif |
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/*
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* MACRO: Fld |
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* |
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* Purpose |
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* The macro "Fld" encodes a bit field, given its size and its shift value |
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* with respect to bit 0. |
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* |
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* Note |
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* A more intuitive way to encode bit fields would have been to use their |
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* mask. However, extracting size and shift value information from a bit |
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* field's mask is cumbersome and might break the assembler (255-character |
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* line-size limit). |
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* |
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* Input |
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* Size Size of the bit field, in number of bits. |
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* Shft Shift value of the bit field with respect to bit 0. |
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* |
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* Output |
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* Fld Encoded bit field. |
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*/ |
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#define Fld(Size, Shft) (((Size) << 16) + (Shft)) |
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/*
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* MACROS: FSize, FShft, FMsk, FAlnMsk, F1stBit |
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* |
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* Purpose |
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* The macros "FSize", "FShft", "FMsk", "FAlnMsk", and "F1stBit" return |
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* the size, shift value, mask, aligned mask, and first bit of a |
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* bit field. |
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* |
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* Input |
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* Field Encoded bit field (using the macro "Fld"). |
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* |
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* Output |
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* FSize Size of the bit field, in number of bits. |
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* FShft Shift value of the bit field with respect to bit 0. |
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* FMsk Mask for the bit field. |
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* FAlnMsk Mask for the bit field, aligned on bit 0. |
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* F1stBit First bit of the bit field. |
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*/ |
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#define FSize(Field) ((Field) >> 16) |
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#define FShft(Field) ((Field) & 0x0000FFFF) |
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#define FMsk(Field) (((UData (1) << FSize (Field)) - 1) << FShft (Field)) |
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#define FAlnMsk(Field) ((UData (1) << FSize (Field)) - 1) |
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#define F1stBit(Field) (UData (1) << FShft (Field)) |
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/*
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* MACRO: FInsrt |
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* |
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* Purpose |
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* The macro "FInsrt" inserts a value into a bit field by shifting the |
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* former appropriately. |
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* |
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* Input |
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* Value Bit-field value. |
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* Field Encoded bit field (using the macro "Fld"). |
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* |
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* Output |
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* FInsrt Bit-field value positioned appropriately. |
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*/ |
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#define FInsrt(Value, Field) \ |
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(UData (Value) << FShft (Field)) |
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/*
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* MACRO: FExtr |
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* |
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* Purpose |
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* The macro "FExtr" extracts the value of a bit field by masking and |
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* shifting it appropriately. |
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* |
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* Input |
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* Data Data containing the bit-field to be extracted. |
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* Field Encoded bit field (using the macro "Fld"). |
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* |
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* Output |
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* FExtr Bit-field value. |
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*/ |
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#define FExtr(Data, Field) \ |
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((UData (Data) >> FShft (Field)) & FAlnMsk (Field)) |
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#endif /* __BITFIELD_H */ |
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@ -0,0 +1,113 @@ |
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/*
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* linux/include/asm-arm/atomic.h |
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* |
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* Copyright (c) 1996 Russell King. |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License version 2 as |
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* published by the Free Software Foundation. |
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* |
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* Changelog: |
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* 27-06-1996 RMK Created |
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* 13-04-1997 RMK Made functions atomic! |
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* 07-12-1997 RMK Upgraded for v2.1. |
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* 26-08-1998 PJB Added #ifdef __KERNEL__ |
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*/ |
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#ifndef __ASM_ARM_ATOMIC_H |
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#define __ASM_ARM_ATOMIC_H |
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#include <linux/config.h> |
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#ifdef CONFIG_SMP |
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#error SMP not supported |
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#endif |
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typedef struct { volatile int counter; } atomic_t; |
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#define ATOMIC_INIT(i) { (i) } |
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#ifdef __KERNEL__ |
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#include <asm/proc/system.h> |
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#define atomic_read(v) ((v)->counter) |
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#define atomic_set(v,i) (((v)->counter) = (i)) |
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static inline void atomic_add(int i, volatile atomic_t *v) |
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{ |
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unsigned long flags; |
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local_irq_save(flags); |
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v->counter += i; |
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local_irq_restore(flags); |
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} |
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static inline void atomic_sub(int i, volatile atomic_t *v) |
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{ |
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unsigned long flags; |
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local_irq_save(flags); |
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v->counter -= i; |
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local_irq_restore(flags); |
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} |
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static inline void atomic_inc(volatile atomic_t *v) |
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{ |
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unsigned long flags; |
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local_irq_save(flags); |
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v->counter += 1; |
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local_irq_restore(flags); |
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} |
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static inline void atomic_dec(volatile atomic_t *v) |
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{ |
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unsigned long flags; |
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local_irq_save(flags); |
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v->counter -= 1; |
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local_irq_restore(flags); |
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} |
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static inline int atomic_dec_and_test(volatile atomic_t *v) |
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{ |
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unsigned long flags; |
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int val; |
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local_irq_save(flags); |
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val = v->counter; |
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v->counter = val -= 1; |
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local_irq_restore(flags); |
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return val == 0; |
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} |
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static inline int atomic_add_negative(int i, volatile atomic_t *v) |
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{ |
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unsigned long flags; |
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int val; |
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local_irq_save(flags); |
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val = v->counter; |
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v->counter = val += i; |
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local_irq_restore(flags); |
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return val < 0; |
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} |
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static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr) |
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{ |
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unsigned long flags; |
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local_irq_save(flags); |
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*addr &= ~mask; |
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local_irq_restore(flags); |
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} |
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/* Atomic operations are already serializing on ARM */ |
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#define smp_mb__before_atomic_dec() barrier() |
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#define smp_mb__after_atomic_dec() barrier() |
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#define smp_mb__before_atomic_inc() barrier() |
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#define smp_mb__after_atomic_inc() barrier() |
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#endif |
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#endif |
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@ -0,0 +1,18 @@ |
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/*
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* linux/include/asm-arm/hardware.h |
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* |
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* Copyright (C) 1996 Russell King |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License version 2 as |
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* published by the Free Software Foundation. |
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* |
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* Common hardware definitions |
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*/ |
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#ifndef __ASM_HARDWARE_H |
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#define __ASM_HARDWARE_H |
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#include <asm/arch/hardware.h> |
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#endif |
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