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path: root/drivers/acpi/acpi_processor.c
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Diffstat (limited to 'drivers/acpi/acpi_processor.c')
-rw-r--r--drivers/acpi/acpi_processor.c28
1 files changed, 9 insertions, 19 deletions
diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c
index f29e06efa479..3c1d6b0c09a4 100644
--- a/drivers/acpi/acpi_processor.c
+++ b/drivers/acpi/acpi_processor.c
@@ -140,15 +140,11 @@ static int acpi_processor_errata_piix4(struct pci_dev *dev)
140 return 0; 140 return 0;
141} 141}
142 142
143static int acpi_processor_errata(struct acpi_processor *pr) 143static int acpi_processor_errata(void)
144{ 144{
145 int result = 0; 145 int result = 0;
146 struct pci_dev *dev = NULL; 146 struct pci_dev *dev = NULL;
147 147
148
149 if (!pr)
150 return -EINVAL;
151
152 /* 148 /*
153 * PIIX4 149 * PIIX4
154 */ 150 */
@@ -181,7 +177,7 @@ static int acpi_processor_hotadd_init(struct acpi_processor *pr)
181 cpu_maps_update_begin(); 177 cpu_maps_update_begin();
182 cpu_hotplug_begin(); 178 cpu_hotplug_begin();
183 179
184 ret = acpi_map_lsapic(pr->handle, &pr->id); 180 ret = acpi_map_lsapic(pr->handle, pr->apic_id, &pr->id);
185 if (ret) 181 if (ret)
186 goto out; 182 goto out;
187 183
@@ -219,11 +215,9 @@ static int acpi_processor_get_info(struct acpi_device *device)
219 int cpu_index, device_declaration = 0; 215 int cpu_index, device_declaration = 0;
220 acpi_status status = AE_OK; 216 acpi_status status = AE_OK;
221 static int cpu0_initialized; 217 static int cpu0_initialized;
218 unsigned long long value;
222 219
223 if (num_online_cpus() > 1) 220 acpi_processor_errata();
224 errata.smp = TRUE;
225
226 acpi_processor_errata(pr);
227 221
228 /* 222 /*
229 * Check to see if we have bus mastering arbitration control. This 223 * Check to see if we have bus mastering arbitration control. This
@@ -247,18 +241,12 @@ static int acpi_processor_get_info(struct acpi_device *device)
247 return -ENODEV; 241 return -ENODEV;
248 } 242 }
249 243
250 /*
251 * TBD: Synch processor ID (via LAPIC/LSAPIC structures) on SMP.
252 * >>> 'acpi_get_processor_id(acpi_id, &id)' in
253 * arch/xxx/acpi.c
254 */
255 pr->acpi_id = object.processor.proc_id; 244 pr->acpi_id = object.processor.proc_id;
256 } else { 245 } else {
257 /* 246 /*
258 * Declared with "Device" statement; match _UID. 247 * Declared with "Device" statement; match _UID.
259 * Note that we don't handle string _UIDs yet. 248 * Note that we don't handle string _UIDs yet.
260 */ 249 */
261 unsigned long long value;
262 status = acpi_evaluate_integer(pr->handle, METHOD_NAME__UID, 250 status = acpi_evaluate_integer(pr->handle, METHOD_NAME__UID,
263 NULL, &value); 251 NULL, &value);
264 if (ACPI_FAILURE(status)) { 252 if (ACPI_FAILURE(status)) {
@@ -270,7 +258,9 @@ static int acpi_processor_get_info(struct acpi_device *device)
270 device_declaration = 1; 258 device_declaration = 1;
271 pr->acpi_id = value; 259 pr->acpi_id = value;
272 } 260 }
273 cpu_index = acpi_get_cpuid(pr->handle, device_declaration, pr->acpi_id); 261 pr->apic_id = acpi_get_apicid(pr->handle, device_declaration,
262 pr->acpi_id);
263 cpu_index = acpi_map_cpuid(pr->apic_id, pr->acpi_id);
274 264
275 /* Handle UP system running SMP kernel, with no LAPIC in MADT */ 265 /* Handle UP system running SMP kernel, with no LAPIC in MADT */
276 if (!cpu0_initialized && (cpu_index == -1) && 266 if (!cpu0_initialized && (cpu_index == -1) &&
@@ -332,9 +322,9 @@ static int acpi_processor_get_info(struct acpi_device *device)
332 * ensure we get the right value in the "physical id" field 322 * ensure we get the right value in the "physical id" field
333 * of /proc/cpuinfo 323 * of /proc/cpuinfo
334 */ 324 */
335 status = acpi_evaluate_object(pr->handle, "_SUN", NULL, &buffer); 325 status = acpi_evaluate_integer(pr->handle, "_SUN", NULL, &value);
336 if (ACPI_SUCCESS(status)) 326 if (ACPI_SUCCESS(status))
337 arch_fix_phys_package_id(pr->id, object.integer.value); 327 arch_fix_phys_package_id(pr->id, value);
338 328
339 return 0; 329 return 0;
340} 330}