Merge branch 'topic/oss' into for-linus

[pandora-kernel.git] / drivers / acpi / processor_core.c

diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index 23f0fb8..2cc4b30 100644 (file)
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -89,7 +89,7 @@ static int acpi_processor_handle_eject(struct acpi_processor *pr);
 
 static const struct acpi_device_id processor_device_ids[] = {
        {ACPI_PROCESSOR_OBJECT_HID, 0},
-       {ACPI_PROCESSOR_HID, 0},
+       {"ACPI0007", 0},
        {"", 0},
 };
 MODULE_DEVICE_TABLE(acpi, processor_device_ids);
@@ -596,7 +596,21 @@ static int acpi_processor_get_info(struct acpi_device *device)
                ACPI_DEBUG_PRINT((ACPI_DB_INFO,
                                  "No bus mastering arbitration control\n"));
 
-       if (!strcmp(acpi_device_hid(device), ACPI_PROCESSOR_HID)) {
+       if (!strcmp(acpi_device_hid(device), ACPI_PROCESSOR_OBJECT_HID)) {
+               /* Declared with "Processor" statement; match ProcessorID */
+               status = acpi_evaluate_object(pr->handle, NULL, NULL, &buffer);
+               if (ACPI_FAILURE(status)) {
+                       printk(KERN_ERR PREFIX "Evaluating processor object\n");
+                       return -ENODEV;
+               }
+
+               /*
+                * TBD: Synch processor ID (via LAPIC/LSAPIC structures) on SMP.
+                *      >>> 'acpi_get_processor_id(acpi_id, &id)' in
+                *      arch/xxx/acpi.c
+                */
+               pr->acpi_id = object.processor.proc_id;
+       } else {
                /*
                 * Declared with "Device" statement; match _UID.
                 * Note that we don't handle string _UIDs yet.
@@ -611,20 +625,6 @@ static int acpi_processor_get_info(struct acpi_device *device)
                }
                device_declaration = 1;
                pr->acpi_id = value;
-       } else {
-               /* Declared with "Processor" statement; match ProcessorID */
-               status = acpi_evaluate_object(pr->handle, NULL, NULL, &buffer);
-               if (ACPI_FAILURE(status)) {
-                       printk(KERN_ERR PREFIX "Evaluating processor object\n");
-                       return -ENODEV;
-               }
-
-               /*
-                * TBD: Synch processor ID (via LAPIC/LSAPIC structures) on SMP.
-                *      >>> 'acpi_get_processor_id(acpi_id, &id)' in
-                *      arch/xxx/acpi.c
-                */
-               pr->acpi_id = object.processor.proc_id;
        }
        cpu_index = get_cpu_id(pr->handle, device_declaration, pr->acpi_id);
 
@@ -649,7 +649,16 @@ static int acpi_processor_get_info(struct acpi_device *device)
                        return -ENODEV;
                }
        }
-
+       /*
+        * On some boxes several processors use the same processor bus id.
+        * But they are located in different scope. For example:
+        * \_SB.SCK0.CPU0
+        * \_SB.SCK1.CPU0
+        * Rename the processor device bus id. And the new bus id will be
+        * generated as the following format:
+        * CPU+CPU ID.
+        */
+       sprintf(acpi_device_bid(device), "CPU%X", pr->id);
        ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Processor [%d:%d]\n", pr->id,
                          pr->acpi_id));
 
@@ -731,6 +740,8 @@ static int __cpuinit acpi_processor_start(struct acpi_device *device)
        /* _PDC call should be done before doing anything else (if reqd.). */
        arch_acpi_processor_init_pdc(pr);
        acpi_processor_set_pdc(pr);
+       arch_acpi_processor_cleanup_pdc(pr);
+
 #ifdef CONFIG_CPU_FREQ
        acpi_processor_ppc_has_changed(pr);
 #endif
@@ -1140,6 +1151,9 @@ static int __init acpi_processor_init(void)
 {
        int result = 0;
 
+       if (acpi_disabled)
+               return 0;
+
        memset(&errata, 0, sizeof(errata));
 
 #ifdef CONFIG_SMP
@@ -1186,6 +1200,9 @@ out_proc:
 
 static void __exit acpi_processor_exit(void)
 {
+       if (acpi_disabled)
+               return;
+
        acpi_processor_ppc_exit();
 
        acpi_thermal_cpufreq_exit();