tools/testing/scatterlist/linux/mm.h

   1 #ifndef _LINUX_MM_H
   2 #define _LINUX_MM_H
   3
   4 #include <assert.h>
   5 #include <string.h>
   6 #include <stdlib.h>
   7 #include <errno.h>
   8 #include <limits.h>
   9 #include <stdio.h>
  10
  11 typedef unsigned long dma_addr_t;
  12
  13 #define unlikely
  14
  15 #define BUG_ON(x) assert(!(x))
  16
  17 #define WARN_ON(condition) ({                                           \
  18         int __ret_warn_on = !!(condition);                              \
  19         unlikely(__ret_warn_on);                                        \
  20 })
  21
  22 #define WARN_ON_ONCE(condition) ({                              \
  23         int __ret_warn_on = !!(condition);                      \
  24         if (unlikely(__ret_warn_on))                            \
  25                 assert(0);                                      \
  26         unlikely(__ret_warn_on);                                \
  27 })
  28
  29 #define PAGE_SIZE       (4096)
  30 #define PAGE_SHIFT      (12)
  31 #define PAGE_MASK       (~(PAGE_SIZE-1))
  32
  33 #define __ALIGN_KERNEL(x, a)            __ALIGN_KERNEL_MASK(x, (typeof(x))(a) - 1)
  34 #define __ALIGN_KERNEL_MASK(x, mask)    (((x) + (mask)) & ~(mask))
  35 #define ALIGN(x, a)                     __ALIGN_KERNEL((x), (a))
  36
  37 #define PAGE_ALIGN(addr) ALIGN(addr, PAGE_SIZE)
  38
  39 #define offset_in_page(p)       ((unsigned long)(p) & ~PAGE_MASK)
  40
  41 #define virt_to_page(x) ((void *)x)
  42 #define page_address(x) ((void *)x)
  43
  44 static inline unsigned long page_to_phys(struct page *page)
  45 {
  46         assert(0);
  47
  48         return 0;
  49 }
  50
  51 #define page_to_pfn(page) ((unsigned long)(page) / PAGE_SIZE)
  52 #define pfn_to_page(pfn) (void *)((pfn) * PAGE_SIZE)
  53 #define nth_page(page,n) pfn_to_page(page_to_pfn((page)) + (n))
  54
  55 #define __min(t1, t2, min1, min2, x, y) ({              \
  56         t1 min1 = (x);                                  \
  57         t2 min2 = (y);                                  \
  58         (void) (&min1 == &min2);                        \
  59         min1 < min2 ? min1 : min2; })
  60
  61 #define ___PASTE(a,b) a##b
  62 #define __PASTE(a,b) ___PASTE(a,b)
  63
  64 #define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__)
  65
  66 #define min(x, y)                                       \
  67         __min(typeof(x), typeof(y),                     \
  68               __UNIQUE_ID(min1_), __UNIQUE_ID(min2_),   \
  69               x, y)
  70
  71 #define min_t(type, x, y)                               \
  72         __min(type, type,                               \
  73               __UNIQUE_ID(min1_), __UNIQUE_ID(min2_),   \
  74               x, y)
  75
  76 #define preemptible() (1)
  77
  78 static inline void *kmap(struct page *page)
  79 {
  80         assert(0);
  81
  82         return NULL;
  83 }
  84
  85 static inline void *kmap_atomic(struct page *page)
  86 {
  87         assert(0);
  88
  89         return NULL;
  90 }
  91
  92 static inline void kunmap(void *addr)
  93 {
  94         assert(0);
  95 }
  96
  97 static inline void kunmap_atomic(void *addr)
  98 {
  99         assert(0);
 100 }
 101
 102 static inline unsigned long __get_free_page(unsigned int flags)
 103 {
 104         return (unsigned long)malloc(PAGE_SIZE);
 105 }
 106
 107 static inline void free_page(unsigned long page)
 108 {
 109         free((void *)page);
 110 }
 111
 112 static inline void *kmalloc(unsigned int size, unsigned int flags)
 113 {
 114         return malloc(size);
 115 }
 116
 117 #define kfree(x) free(x)
 118
 119 #define kmemleak_alloc(a, b, c, d)
 120 #define kmemleak_free(a)
 121
 122 #define PageSlab(p) (0)
 123 #define flush_kernel_dcache_page(p)
 124
 125 #endif