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Diffstat (limited to 'arch/powerpc/platforms/pseries/hotplug-cpu.c')
-rw-r--r--arch/powerpc/platforms/pseries/hotplug-cpu.c33
1 files changed, 19 insertions, 14 deletions
diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c b/arch/powerpc/platforms/pseries/hotplug-cpu.c
index b0760d7701b4..235f363f732d 100644
--- a/arch/powerpc/platforms/pseries/hotplug-cpu.c
+++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c
@@ -163,7 +163,7 @@ static int pseries_cpu_disable(void)
163 163
164 /*fix boot_cpuid here*/ 164 /*fix boot_cpuid here*/
165 if (cpu == boot_cpuid) 165 if (cpu == boot_cpuid)
166 boot_cpuid = any_online_cpu(cpu_online_map); 166 boot_cpuid = cpumask_any(cpu_online_mask);
167 167
168 /* FIXME: abstract this to not be platform specific later on */ 168 /* FIXME: abstract this to not be platform specific later on */
169 xics_migrate_irqs_away(); 169 xics_migrate_irqs_away();
@@ -231,7 +231,7 @@ static void pseries_cpu_die(unsigned int cpu)
231static int pseries_add_processor(struct device_node *np) 231static int pseries_add_processor(struct device_node *np)
232{ 232{
233 unsigned int cpu; 233 unsigned int cpu;
234 cpumask_t candidate_map, tmp = CPU_MASK_NONE; 234 cpumask_var_t candidate_mask, tmp;
235 int err = -ENOSPC, len, nthreads, i; 235 int err = -ENOSPC, len, nthreads, i;
236 const u32 *intserv; 236 const u32 *intserv;
237 237
@@ -239,48 +239,53 @@ static int pseries_add_processor(struct device_node *np)
239 if (!intserv) 239 if (!intserv)
240 return 0; 240 return 0;
241 241
242 zalloc_cpumask_var(&candidate_mask, GFP_KERNEL);
243 zalloc_cpumask_var(&tmp, GFP_KERNEL);
244
242 nthreads = len / sizeof(u32); 245 nthreads = len / sizeof(u32);
243 for (i = 0; i < nthreads; i++) 246 for (i = 0; i < nthreads; i++)
244 cpu_set(i, tmp); 247 cpumask_set_cpu(i, tmp);
245 248
246 cpu_maps_update_begin(); 249 cpu_maps_update_begin();
247 250
248 BUG_ON(!cpus_subset(cpu_present_map, cpu_possible_map)); 251 BUG_ON(!cpumask_subset(cpu_present_mask, cpu_possible_mask));
249 252
250 /* Get a bitmap of unoccupied slots. */ 253 /* Get a bitmap of unoccupied slots. */
251 cpus_xor(candidate_map, cpu_possible_map, cpu_present_map); 254 cpumask_xor(candidate_mask, cpu_possible_mask, cpu_present_mask);
252 if (cpus_empty(candidate_map)) { 255 if (cpumask_empty(candidate_mask)) {
253 /* If we get here, it most likely means that NR_CPUS is 256 /* If we get here, it most likely means that NR_CPUS is
254 * less than the partition's max processors setting. 257 * less than the partition's max processors setting.
255 */ 258 */
256 printk(KERN_ERR "Cannot add cpu %s; this system configuration" 259 printk(KERN_ERR "Cannot add cpu %s; this system configuration"
257 " supports %d logical cpus.\n", np->full_name, 260 " supports %d logical cpus.\n", np->full_name,
258 cpus_weight(cpu_possible_map)); 261 cpumask_weight(cpu_possible_mask));
259 goto out_unlock; 262 goto out_unlock;
260 } 263 }
261 264
262 while (!cpus_empty(tmp)) 265 while (!cpumask_empty(tmp))
263 if (cpus_subset(tmp, candidate_map)) 266 if (cpumask_subset(tmp, candidate_mask))
264 /* Found a range where we can insert the new cpu(s) */ 267 /* Found a range where we can insert the new cpu(s) */
265 break; 268 break;
266 else 269 else
267 cpus_shift_left(tmp, tmp, nthreads); 270 cpumask_shift_left(tmp, tmp, nthreads);
268 271
269 if (cpus_empty(tmp)) { 272 if (cpumask_empty(tmp)) {
270 printk(KERN_ERR "Unable to find space in cpu_present_map for" 273 printk(KERN_ERR "Unable to find space in cpu_present_map for"
271 " processor %s with %d thread(s)\n", np->name, 274 " processor %s with %d thread(s)\n", np->name,
272 nthreads); 275 nthreads);
273 goto out_unlock; 276 goto out_unlock;
274 } 277 }
275 278
276 for_each_cpu_mask(cpu, tmp) { 279 for_each_cpu(cpu, tmp) {
277 BUG_ON(cpu_isset(cpu, cpu_present_map)); 280 BUG_ON(cpumask_test_cpu(cpu, cpu_present_mask));
278 set_cpu_present(cpu, true); 281 set_cpu_present(cpu, true);
279 set_hard_smp_processor_id(cpu, *intserv++); 282 set_hard_smp_processor_id(cpu, *intserv++);
280 } 283 }
281 err = 0; 284 err = 0;
282out_unlock: 285out_unlock:
283 cpu_maps_update_done(); 286 cpu_maps_update_done();
287 free_cpumask_var(candidate_mask);
288 free_cpumask_var(tmp);
284 return err; 289 return err;
285} 290}
286 291
@@ -311,7 +316,7 @@ static void pseries_remove_processor(struct device_node *np)
311 set_hard_smp_processor_id(cpu, -1); 316 set_hard_smp_processor_id(cpu, -1);
312 break; 317 break;
313 } 318 }
314 if (cpu == NR_CPUS) 319 if (cpu >= nr_cpu_ids)
315 printk(KERN_WARNING "Could not find cpu to remove " 320 printk(KERN_WARNING "Could not find cpu to remove "
316 "with physical id 0x%x\n", intserv[i]); 321 "with physical id 0x%x\n", intserv[i]);
317 } 322 }