lunaix-os/kernel/mm/LConfig

   1
   2 @Collection("Memory Management")
   3 def memory_subsystem():
   4     """ Config the memory subsystem """
   5
   6     @Collection("Physical Memory")
   7     def physical_mm():
   8         """ Physical memory manager  """
   9
  10         @Term("Allocation policy")
  11         def pmalloc_method():
  12             """ Allocation policy for phiscal memory  """
  13
  14             type(["simple", "buddy", "ncontig"])
  15             default("simple")
  16
  17         @Group("Simple")
  18         def pmalloc_simple_po_thresholds():
  19
  20             @Term("Maximum cached order-0 free pages")
  21             def pmalloc_simple_max_po0():
  22                 """ free list capacity for order-0 pages  """
  23
  24                 type(int)
  25                 default(4096)
  26
  27             @Term("Maximum cached order-1 free pages")
  28             def pmalloc_simple_max_po1():
  29                 """ free list capacity for order-1 pages  """
  30
  31                 type(int)
  32                 default(2048)
  33
  34             @Term("Maximum cached order-2 free pages")
  35             def pmalloc_simple_max_po2():
  36                 """ free list capacity for order-2 pages  """
  37
  38                 type(int)
  39                 default(2048)
  40
  41             @Term("Maximum cached order-3 free pages")
  42             def pmalloc_simple_max_po3():
  43                 """ free list capacity for order-3 pages  """
  44
  45                 type(int)
  46                 default(2048)
  47
  48             @Term("Maximum cached order-4 free pages")
  49             def pmalloc_simple_max_po4():
  50                 """ free list capacity for order-4 pages  """
  51
  52                 type(int)
  53                 default(512)
  54
  55             @Term("Maximum cached order-5 free pages")
  56             def pmalloc_simple_max_po5():
  57                 """ free list capacity for order-5 pages  """
  58
  59                 type(int)
  60                 default(512)
  61
  62             @Term("Maximum cached order-6 free pages")
  63             def pmalloc_simple_max_po6():
  64                 """ free list capacity for order-6 pages  """
  65
  66                 type(int)
  67                 default(128)
  68
  69             @Term("Maximum cached order-7 free pages")
  70             def pmalloc_simple_max_po7():
  71                 """ free list capacity for order-7 pages  """
  72
  73                 type(int)
  74                 default(128)
  75
  76             @Term("Maximum cached order-8 free pages")
  77             def pmalloc_simple_max_po8():
  78                 """ free list capacity for order-8 pages  """
  79
  80                 type(int)
  81                 default(64)
  82
  83             @Term("Maximum cached order-9 free pages")
  84             def pmalloc_simple_max_po9():
  85                 """ free list capacity for order-9 pages  """
  86
  87                 type(int)
  88                 default(32)
  89
  90             return v(pmalloc_method) == "simple"
  91
  92     add_to_collection(kernel_feature)