arch/x86/pci/mp_bus_to_node.c

   1 #include <linux/pci.h>
   2 #include <linux/init.h>
   3 #include <linux/topology.h>
   4
   5 #define BUS_NR 256
   6
   7 static unsigned char mp_bus_to_node[BUS_NR];
   8
   9 void set_mp_bus_to_node(int busnum, int node)
  10 {
  11         if (busnum >= 0 &&  busnum < BUS_NR)
  12         mp_bus_to_node[busnum] = (unsigned char) node;
  13 }
  14
  15 int get_mp_bus_to_node(int busnum)
  16 {
  17         int node;
  18
  19         if (busnum < 0 || busnum > (BUS_NR - 1))
  20                 return 0;
  21         node = mp_bus_to_node[busnum];
  22         return node;
  23 }