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      1 /****************************************************************************
      2  ****************************************************************************
      3  ***
      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.
      9  ***
     10  ****************************************************************************
     11  ****************************************************************************/
     12 #ifndef __ASM_ARM_MEMORY_H
     13 #define __ASM_ARM_MEMORY_H
     14 
     15 #ifndef __ASSEMBLY__
     16 #define UL(x) (x##UL)
     17 #else
     18 #define UL(x) (x)
     19 #endif
     20 
     21 #include <linux/compiler.h>
     22 #include <asm/arch/memory.h>
     23 #include <asm/sizes.h>
     24 
     25 #ifndef TASK_SIZE
     26 #define TASK_SIZE (CONFIG_DRAM_SIZE)
     27 #endif
     28 
     29 #ifndef TASK_UNMAPPED_BASE
     30 #define TASK_UNMAPPED_BASE UL(0x00000000)
     31 #endif
     32 
     33 #ifndef PHYS_OFFSET
     34 #define PHYS_OFFSET (CONFIG_DRAM_BASE)
     35 #endif
     36 
     37 #ifndef END_MEM
     38 #define END_MEM (CONFIG_DRAM_BASE + CONFIG_DRAM_SIZE)
     39 #endif
     40 
     41 #ifndef PAGE_OFFSET
     42 #define PAGE_OFFSET (PHYS_OFFSET)
     43 #endif
     44 
     45 #define MODULE_END (END_MEM)
     46 #define MODULE_START (PHYS_OFFSET)
     47 
     48 #ifndef CONSISTENT_DMA_SIZE
     49 #define CONSISTENT_DMA_SIZE SZ_2M
     50 #endif
     51 
     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)
     55 #endif
     56 
     57 #define __phys_to_pfn(paddr) ((paddr) >> PAGE_SHIFT)
     58 #define __pfn_to_phys(pfn) ((pfn) << PAGE_SHIFT)
     59 
     60 #ifndef __ASSEMBLY__
     61 
     62 #ifndef ISA_DMA_THRESHOLD
     63 #define ISA_DMA_THRESHOLD (0xffffffffULL)
     64 #endif
     65 
     66 #ifndef arch_adjust_zones
     67 #define arch_adjust_zones(node,size,holes) do { } while (0)
     68 #endif
     69 
     70 #define PHYS_PFN_OFFSET (PHYS_OFFSET >> PAGE_SHIFT)
     71 
     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)))
     85 #else
     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))
     89 #endif
     90 #ifndef arch_is_coherent
     91 #define arch_is_coherent() 0
     92 #endif
     93 #endif
     94 #include <asm-generic/memory_model.h>
     95 #endif
     96