}
#endif /* CONFIG_HOTPLUG_CPU || CONFIG_PPC_SPLPAR */
+int cpu_distance(__be32 *cpu1_assoc, __be32 *cpu2_assoc)
+{
+ int dist = 0;
+
+ int i, index;
+
+ for (i = 0; i < distance_ref_points_depth; i++) {
+ index = be32_to_cpu(distance_ref_points[i]);
+ if (cpu1_assoc[index] == cpu2_assoc[index])
+ break;
+ dist++;
+ }
+
+ return dist;
+}
+
/* must hold reference to node during call */
static const __be32 *of_get_associativity(struct device_node *dev)
{
static int of_drconf_to_nid_single(struct drmem_lmb *lmb)
{
struct assoc_arrays aa = { .arrays = NULL };
- int default_nid = 0;
+ int default_nid = NUMA_NO_NODE;
int nid = default_nid;
int rc, index;
+ if (min_common_depth < 0)
+ return default_nid;
+
rc = of_get_assoc_arrays(&aa);
if (rc)
return default_nid;
- if (min_common_depth > 0 && min_common_depth <= aa.array_sz &&
- !(lmb->flags & DRCONF_MEM_AI_INVALID) &&
- lmb->aa_index < aa.n_arrays) {
+ if (min_common_depth <= aa.array_sz &&
+ !(lmb->flags & DRCONF_MEM_AI_INVALID) && lmb->aa_index < aa.n_arrays) {
index = lmb->aa_index * aa.array_sz + min_common_depth - 1;
nid = of_read_number(&aa.arrays[index], 1);
/* Virtual Processor Home Node (VPHN) support */
#ifdef CONFIG_PPC_SPLPAR
-
-#include "book3s64/vphn.h"
-
struct topology_update_data {
struct topology_update_data *next;
unsigned int cpu;
* Retrieve the new associativity information for a virtual processor's
* home node.
*/
-static long hcall_vphn(unsigned long cpu, __be32 *associativity)
-{
- long rc;
- long retbuf[PLPAR_HCALL9_BUFSIZE] = {0};
- u64 flags = 1;
- int hwcpu = get_hard_smp_processor_id(cpu);
-
- rc = plpar_hcall9(H_HOME_NODE_ASSOCIATIVITY, retbuf, flags, hwcpu);
- vphn_unpack_associativity(retbuf, associativity);
-
- return rc;
-}
-
static long vphn_get_associativity(unsigned long cpu,
__be32 *associativity)
{
long rc;
- rc = hcall_vphn(cpu, associativity);
+ rc = hcall_vphn(get_hard_smp_processor_id(cpu),
+ VPHN_FLAG_VCPU, associativity);
switch (rc) {
case H_FUNCTION: