diff options
| -rw-r--r-- | drivers/iommu/intel-iommu.c | 24 | ||||
| -rw-r--r-- | include/linux/cpuhotplug.h | 1 |
2 files changed, 7 insertions, 18 deletions
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index a4407eabf0e6..fd7962560e56 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -4665,25 +4665,13 @@ static void free_all_cpu_cached_iovas(unsigned int cpu) } } -static int intel_iommu_cpu_notifier(struct notifier_block *nfb, - unsigned long action, void *v) +static int intel_iommu_cpu_dead(unsigned int cpu) { - unsigned int cpu = (unsigned long)v; - - switch (action) { - case CPU_DEAD: - case CPU_DEAD_FROZEN: - free_all_cpu_cached_iovas(cpu); - flush_unmaps_timeout(cpu); - break; - } - return NOTIFY_OK; + free_all_cpu_cached_iovas(cpu); + flush_unmaps_timeout(cpu); + return 0; } -static struct notifier_block intel_iommu_cpu_nb = { - .notifier_call = intel_iommu_cpu_notifier, -}; - static ssize_t intel_iommu_show_version(struct device *dev, struct device_attribute *attr, char *buf) @@ -4832,8 +4820,8 @@ int __init intel_iommu_init(void) bus_register_notifier(&pci_bus_type, &device_nb); if (si_domain && !hw_pass_through) register_memory_notifier(&intel_iommu_memory_nb); - register_hotcpu_notifier(&intel_iommu_cpu_nb); - + cpuhp_setup_state(CPUHP_IOMMU_INTEL_DEAD, "iommu/intel:dead", NULL, + intel_iommu_cpu_dead); intel_iommu_enabled = 1; return 0; diff --git a/include/linux/cpuhotplug.h b/include/linux/cpuhotplug.h index c7d0d76ef0ee..853f8176594d 100644 --- a/include/linux/cpuhotplug.h +++ b/include/linux/cpuhotplug.h @@ -40,6 +40,7 @@ enum cpuhp_state { CPUHP_PAGE_ALLOC_DEAD, CPUHP_NET_DEV_DEAD, CPUHP_PCI_XGENE_DEAD, + CPUHP_IOMMU_INTEL_DEAD, CPUHP_WORKQUEUE_PREP, CPUHP_POWER_NUMA_PREPARE, CPUHP_HRTIMERS_PREPARE, |