arch/mips/kernel/irixinv.c

   1 /*
   2  * Support the inventory interface for IRIX binaries
   3  * This is invoked before the mm layer is working, so we do not
   4  * use the linked lists for the inventory yet.
   5  *
   6  * Miguel de Icaza, 1997.
   7  */
   8 #include <linux/mm.h>
   9 #include <asm/inventory.h>
  10 #include <asm/uaccess.h>
  11
  12 #define MAX_INVENTORY 50
  13 int inventory_items = 0;
  14
  15 static inventory_t inventory [MAX_INVENTORY];
  16
  17 void add_to_inventory (int class, int type, int controller, int unit, int state)
  18 {
  19         inventory_t *ni = &inventory [inventory_items];
  20
  21         if (inventory_items == MAX_INVENTORY)
  22                 return;
  23
  24         ni->inv_class      = class;
  25         ni->inv_type       = type;
  26         ni->inv_controller = controller;
  27         ni->inv_unit       = unit;
  28         ni->inv_state      = state;
  29         ni->inv_next       = ni;
  30         inventory_items++;
  31 }
  32
  33 int dump_inventory_to_user (void __user *userbuf, int size)
  34 {
  35         inventory_t *inv  = &inventory [0];
  36         inventory_t __user *user = userbuf;
  37         int v;
  38
  39         if (!access_ok(VERIFY_WRITE, userbuf, size))
  40                 return -EFAULT;
  41
  42         for (v = 0; v < inventory_items; v++){
  43                 inv = &inventory [v];
  44                 if (copy_to_user (user, inv, sizeof (inventory_t)))
  45                         return -EFAULT;
  46                 user++;
  47         }
  48         return inventory_items * sizeof (inventory_t);
  49 }
  50
  51 int __init init_inventory(void)
  52 {
  53         /*
  54          * gross hack while we put the right bits all over the kernel
  55          * most likely this will not let just anyone run the X server
  56          * until we put the right values all over the place
  57          */
  58         add_to_inventory (10, 3, 0, 0, 16400);
  59         add_to_inventory (1, 1, 150, -1, 12);
  60         add_to_inventory (1, 3, 0, 0, 8976);
  61         add_to_inventory (1, 2, 0, 0, 8976);
  62         add_to_inventory (4, 8, 0, 0, 2);
  63         add_to_inventory (5, 5, 0, 0, 1);
  64         add_to_inventory (3, 3, 0, 0, 32768);
  65         add_to_inventory (3, 4, 0, 0, 32768);
  66         add_to_inventory (3, 8, 0, 0, 524288);
  67         add_to_inventory (3, 9, 0, 0, 64);
  68         add_to_inventory (3, 1, 0, 0, 67108864);
  69         add_to_inventory (12, 3, 0, 0, 16);
  70         add_to_inventory (8, 7, 17, 0, 16777472);
  71         add_to_inventory (8, 0, 0, 0, 1);
  72         add_to_inventory (2, 1, 0, 13, 2);
  73         add_to_inventory (2, 2, 0, 2, 0);
  74         add_to_inventory (2, 2, 0, 1, 0);
  75         add_to_inventory (7, 14, 0, 0, 6);
  76
  77         return 0;
  78 }