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path: root/drivers/acpi/processor_core.c
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Diffstat (limited to 'drivers/acpi/processor_core.c')
-rw-r--r--drivers/acpi/processor_core.c168
1 files changed, 84 insertions, 84 deletions
diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index a496a863edea..53de55e6f6b1 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -698,6 +698,90 @@ static int acpi_processor_get_info(struct acpi_device *device)
698 698
699static DEFINE_PER_CPU(void *, processor_device_array); 699static DEFINE_PER_CPU(void *, processor_device_array);
700 700
701static void acpi_processor_notify(struct acpi_device *device, u32 event)
702{
703 struct acpi_processor *pr = acpi_driver_data(device);
704 int saved;
705
706 if (!pr)
707 return;
708
709 switch (event) {
710 case ACPI_PROCESSOR_NOTIFY_PERFORMANCE:
711 saved = pr->performance_platform_limit;
712 acpi_processor_ppc_has_changed(pr);
713 if (saved == pr->performance_platform_limit)
714 break;
715 acpi_bus_generate_proc_event(device, event,
716 pr->performance_platform_limit);
717 acpi_bus_generate_netlink_event(device->pnp.device_class,
718 dev_name(&device->dev), event,
719 pr->performance_platform_limit);
720 break;
721 case ACPI_PROCESSOR_NOTIFY_POWER:
722 acpi_processor_cst_has_changed(pr);
723 acpi_bus_generate_proc_event(device, event, 0);
724 acpi_bus_generate_netlink_event(device->pnp.device_class,
725 dev_name(&device->dev), event, 0);
726 break;
727 case ACPI_PROCESSOR_NOTIFY_THROTTLING:
728 acpi_processor_tstate_has_changed(pr);
729 acpi_bus_generate_proc_event(device, event, 0);
730 acpi_bus_generate_netlink_event(device->pnp.device_class,
731 dev_name(&device->dev), event, 0);
732 default:
733 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
734 "Unsupported event [0x%x]\n", event));
735 break;
736 }
737
738 return;
739}
740
741static int acpi_cpu_soft_notify(struct notifier_block *nfb,
742 unsigned long action, void *hcpu)
743{
744 unsigned int cpu = (unsigned long)hcpu;
745 struct acpi_processor *pr = per_cpu(processors, cpu);
746
747 if (action == CPU_ONLINE && pr) {
748 acpi_processor_ppc_has_changed(pr);
749 acpi_processor_cst_has_changed(pr);
750 acpi_processor_tstate_has_changed(pr);
751 }
752 return NOTIFY_OK;
753}
754
755static struct notifier_block acpi_cpu_notifier =
756{
757 .notifier_call = acpi_cpu_soft_notify,
758};
759
760static int acpi_processor_add(struct acpi_device *device)
761{
762 struct acpi_processor *pr = NULL;
763
764
765 if (!device)
766 return -EINVAL;
767
768 pr = kzalloc(sizeof(struct acpi_processor), GFP_KERNEL);
769 if (!pr)
770 return -ENOMEM;
771
772 if (!zalloc_cpumask_var(&pr->throttling.shared_cpu_map, GFP_KERNEL)) {
773 kfree(pr);
774 return -ENOMEM;
775 }
776
777 pr->handle = device->handle;
778 strcpy(acpi_device_name(device), ACPI_PROCESSOR_DEVICE_NAME);
779 strcpy(acpi_device_class(device), ACPI_PROCESSOR_CLASS);
780 device->driver_data = pr;
781
782 return 0;
783}
784
701static int __cpuinit acpi_processor_start(struct acpi_device *device) 785static int __cpuinit acpi_processor_start(struct acpi_device *device)
702{ 786{
703 int result = 0; 787 int result = 0;
@@ -799,90 +883,6 @@ err_remove_fs:
799 return result; 883 return result;
800} 884}
801 885
802static void acpi_processor_notify(struct acpi_device *device, u32 event)
803{
804 struct acpi_processor *pr = acpi_driver_data(device);
805 int saved;
806
807 if (!pr)
808 return;
809
810 switch (event) {
811 case ACPI_PROCESSOR_NOTIFY_PERFORMANCE:
812 saved = pr->performance_platform_limit;
813 acpi_processor_ppc_has_changed(pr);
814 if (saved == pr->performance_platform_limit)
815 break;
816 acpi_bus_generate_proc_event(device, event,
817 pr->performance_platform_limit);
818 acpi_bus_generate_netlink_event(device->pnp.device_class,
819 dev_name(&device->dev), event,
820 pr->performance_platform_limit);
821 break;
822 case ACPI_PROCESSOR_NOTIFY_POWER:
823 acpi_processor_cst_has_changed(pr);
824 acpi_bus_generate_proc_event(device, event, 0);
825 acpi_bus_generate_netlink_event(device->pnp.device_class,
826 dev_name(&device->dev), event, 0);
827 break;
828 case ACPI_PROCESSOR_NOTIFY_THROTTLING:
829 acpi_processor_tstate_has_changed(pr);
830 acpi_bus_generate_proc_event(device, event, 0);
831 acpi_bus_generate_netlink_event(device->pnp.device_class,
832 dev_name(&device->dev), event, 0);
833 default:
834 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
835 "Unsupported event [0x%x]\n", event));
836 break;
837 }
838
839 return;
840}
841
842static int acpi_cpu_soft_notify(struct notifier_block *nfb,
843 unsigned long action, void *hcpu)
844{
845 unsigned int cpu = (unsigned long)hcpu;
846 struct acpi_processor *pr = per_cpu(processors, cpu);
847
848 if (action == CPU_ONLINE && pr) {
849 acpi_processor_ppc_has_changed(pr);
850 acpi_processor_cst_has_changed(pr);
851 acpi_processor_tstate_has_changed(pr);
852 }
853 return NOTIFY_OK;
854}
855
856static struct notifier_block acpi_cpu_notifier =
857{
858 .notifier_call = acpi_cpu_soft_notify,
859};
860
861static int acpi_processor_add(struct acpi_device *device)
862{
863 struct acpi_processor *pr = NULL;
864
865
866 if (!device)
867 return -EINVAL;
868
869 pr = kzalloc(sizeof(struct acpi_processor), GFP_KERNEL);
870 if (!pr)
871 return -ENOMEM;
872
873 if (!zalloc_cpumask_var(&pr->throttling.shared_cpu_map, GFP_KERNEL)) {
874 kfree(pr);
875 return -ENOMEM;
876 }
877
878 pr->handle = device->handle;
879 strcpy(acpi_device_name(device), ACPI_PROCESSOR_DEVICE_NAME);
880 strcpy(acpi_device_class(device), ACPI_PROCESSOR_CLASS);
881 device->driver_data = pr;
882
883 return 0;
884}
885
886static int acpi_processor_remove(struct acpi_device *device, int type) 886static int acpi_processor_remove(struct acpi_device *device, int type)
887{ 887{
888 struct acpi_processor *pr = NULL; 888 struct acpi_processor *pr = NULL;
generated by cgit v1.2.2 (git 2.25.0) at 2026-03-03 20:40:56 -0500