Merge branch 'for-linus' of git://neil.brown.name/md

[mv-sheeva.git] / arch / powerpc / mm / numa.c

diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index f25633d3d0086ebbb024e46ef93ab267a87db80a..fd4812329570d1658640c22776755dda9c1170fe 100644 (file)
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -186,7 +186,7 @@ static void unmap_cpu_from_node(unsigned long cpu)
        dbg("removing cpu %lu from node %d\n", cpu, node);
 
        if (cpumask_test_cpu(cpu, node_to_cpumask_map[node])) {
-               cpumask_set_cpu(cpu, node_to_cpumask_map[node]);
+               cpumask_clear_cpu(cpu, node_to_cpumask_map[node]);
        } else {
                printk(KERN_ERR "WARNING: cpu %lu not found in node %d\n",
                       cpu, node);
@@ -1341,7 +1341,7 @@ static int update_cpu_associativity_changes_mask(void)
                volatile u8 *hypervisor_counts = lppaca[cpu].vphn_assoc_counts;
 
                for (i = 0; i < distance_ref_points_depth; i++) {
-                       if (hypervisor_counts[i] > counts[i]) {
+                       if (hypervisor_counts[i] != counts[i]) {
                                counts[i] = hypervisor_counts[i];
                                changed = 1;
                        }
@@ -1355,8 +1355,11 @@ static int update_cpu_associativity_changes_mask(void)
        return nr_cpus;
 }
 
-/* 6 64-bit registers unpacked into 12 32-bit associativity values */
-#define VPHN_ASSOC_BUFSIZE (6*sizeof(u64)/sizeof(u32))
+/*
+ * 6 64-bit registers unpacked into 12 32-bit associativity values. To form
+ * the complete property we have to add the length in the first cell.
+ */
+#define VPHN_ASSOC_BUFSIZE (6*sizeof(u64)/sizeof(u32) + 1)
 
 /*
  * Convert the associativity domain numbers returned from the hypervisor
@@ -1371,7 +1374,7 @@ static int vphn_unpack_associativity(const long *packed, unsigned int *unpacked)
 #define VPHN_FIELD_MSB         (0x8000)
 #define VPHN_FIELD_MASK                (~VPHN_FIELD_MSB)
 
-       for (i = 0; i < VPHN_ASSOC_BUFSIZE; i++) {
+       for (i = 1; i < VPHN_ASSOC_BUFSIZE; i++) {
                if (*field == VPHN_FIELD_UNUSED) {
                        /* All significant fields processed, and remaining
                         * fields contain the reserved value of all 1's.
@@ -1394,6 +1397,9 @@ static int vphn_unpack_associativity(const long *packed, unsigned int *unpacked)
                }
        }
 
+       /* The first cell contains the length of the property */
+       unpacked[0] = nr_assoc_doms;
+
        return nr_assoc_doms;
 }
 
@@ -1510,7 +1516,8 @@ int start_topology_update(void)
 {
        int rc = 0;
 
-       if (firmware_has_feature(FW_FEATURE_VPHN)) {
+       if (firmware_has_feature(FW_FEATURE_VPHN) &&
+           get_lppaca()->shared_proc) {
                vphn_enabled = 1;
                setup_cpu_associativity_change_counters();
                init_timer_deferrable(&topology_timer);