int
get_portid(pnode_t node, pnode_t *cmpp)
{
int portid;
int i;
char dev_type[OBP_MAXPROPNAME];
pnode_t cpu_parent;
if (cmpp != NULL)
*cmpp = OBP_NONODE;
if (GETPROP(node, "portid", (caddr_t)&portid) != -1)
return (portid);
if (GETPROP(node, "upa-portid", (caddr_t)&portid) != -1)
return (portid);
if (GETPROP(node, "device_type", (caddr_t)&dev_type) == -1)
return (-1);
/*
* For a virtual cpu node that is a CMP core, the "portid"
* is in the parent node.
* For a virtual cpu node that is a CMT strand, the "portid" is
* in its grandparent node.
* So we iterate up as far as 2 levels to get the "portid".
*/
if (strcmp(dev_type, "cpu") == 0) {
cpu_parent = node = prom_parentnode(node);
for (i = 0; i < 2; i++) {
if (node == OBP_NONODE || node == OBP_BADNODE)
break;
if (GETPROP(node, "portid", (caddr_t)&portid) != -1) {
if (cmpp != NULL)
*cmpp = cpu_parent;
return (portid);
}
node = prom_parentnode(node);
}
}
return (-1);
}
ihandle_t
get_parent_ihandle(ihandle_t child_ihandle)
{
char parent_name[OBP_MAXPATHLEN];
phandle_t child_phandle, parent_phandle;
child_phandle = prom_getphandle(child_ihandle);
parent_phandle = prom_parentnode(child_phandle);
prom_phandle_to_path(parent_phandle, parent_name, OBP_MAXPATHLEN);
return (prom_open(parent_name));
}
pnode_t
kmdb_prom_getcpu_propnode(pnode_t node)
{
int val;
pnode_t pnode;
char name[OBP_MAXPROPNAME];
/*
* Check for the CMT case where cpu nodes are "strand" nodes
* In this case, the "cpu node" properties are contained in
* its parent "core" node.
*/
if (prom_getprop(node, "portid", (caddr_t)&val) == -1 &&
prom_getprop(node, "upa-portid", (caddr_t)&val) == -1 &&
prom_getprop((pnode = prom_parentnode(node)), "name", name) != -1 &&
strcmp(name, "core") == 0)
return (pnode);
return (node);
}
