1 /****************************************************************************
2 ****************************************************************************
4 *** This header was automatically generated from a Linux kernel header
5 *** of the same name, to make information necessary for userspace to
6 *** call into the kernel available to libc. It contains only constants,
7 *** structures, and macros generated from the original header, and thus,
8 *** contains no copyrightable information.
10 ****************************************************************************
11 ****************************************************************************/
12 #ifndef __ASM_ARM_MEMORY_H
13 #define __ASM_ARM_MEMORY_H
21 #include <linux/compiler.h>
22 #include <asm/arch/memory.h>
23 #include <asm/sizes.h>
26 #define TASK_SIZE (CONFIG_DRAM_SIZE)
29 #ifndef TASK_UNMAPPED_BASE
30 #define TASK_UNMAPPED_BASE UL(0x00000000)
34 #define PHYS_OFFSET (CONFIG_DRAM_BASE)
38 #define END_MEM (CONFIG_DRAM_BASE + CONFIG_DRAM_SIZE)
42 #define PAGE_OFFSET (PHYS_OFFSET)
45 #define MODULE_END (END_MEM)
46 #define MODULE_START (PHYS_OFFSET)
48 #ifndef CONSISTENT_DMA_SIZE
49 #define CONSISTENT_DMA_SIZE SZ_2M
52 #ifndef __virt_to_phys
53 #define __virt_to_phys(x) ((x) - PAGE_OFFSET + PHYS_OFFSET)
54 #define __phys_to_virt(x) ((x) - PHYS_OFFSET + PAGE_OFFSET)
57 #define __phys_to_pfn(paddr) ((paddr) >> PAGE_SHIFT)
58 #define __pfn_to_phys(pfn) ((pfn) << PAGE_SHIFT)
62 #ifndef ISA_DMA_THRESHOLD
63 #define ISA_DMA_THRESHOLD (0xffffffffULL)
66 #ifndef arch_adjust_zones
67 #define arch_adjust_zones(node,size,holes) do { } while (0)
70 #define PHYS_PFN_OFFSET (PHYS_OFFSET >> PAGE_SHIFT)
72 #define __pa(x) __virt_to_phys((unsigned long)(x))
73 #define __va(x) ((void *)__phys_to_virt((unsigned long)(x)))
74 #define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT)
75 #define ARCH_PFN_OFFSET PHYS_PFN_OFFSET
76 #define pfn_valid(pfn) ((pfn) >= PHYS_PFN_OFFSET && (pfn) < (PHYS_PFN_OFFSET + max_mapnr))
77 #define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
78 #define virt_addr_valid(kaddr) ((unsigned long)(kaddr) >= PAGE_OFFSET && (unsigned long)(kaddr) < (unsigned long)high_memory)
79 #define PHYS_TO_NID(addr) (0)
80 #define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT)
81 #ifndef __arch_page_to_dma
82 #define page_to_dma(dev, page) ((dma_addr_t)__virt_to_bus((unsigned long)page_address(page)))
83 #define dma_to_virt(dev, addr) ((void *)__bus_to_virt(addr))
84 #define virt_to_dma(dev, addr) ((dma_addr_t)__virt_to_bus((unsigned long)(addr)))
86 #define page_to_dma(dev, page) (__arch_page_to_dma(dev, page))
87 #define dma_to_virt(dev, addr) (__arch_dma_to_virt(dev, addr))
88 #define virt_to_dma(dev, addr) (__arch_virt_to_dma(dev, addr))
90 #ifndef arch_is_coherent
91 #define arch_is_coherent() 0
94 #include <asm-generic/memory_model.h>