acpi_map_lsapic() will allocate a logical CPU number and map it to physical CPU id (such as APIC id) for the hot-added CPU, it will also do some mapping for NUMA node id and etc, acpi_unmap_lsapic() will do the reverse. We can see that the name of the function is a little bit confusing and arch (IA64) dependent so rename them as acpi_(un)map_cpu() to make arch agnostic and explicit.
Showing the changes to include/linux (1 of 4 files). Show all
Unified · Split
| @@ -147,8 +147,8 @@ void acpi_numa_arch_fixup(void); · 146 unmodified lines | |||
| 147 | 147 | ||
| 148 | #ifdef CONFIG_ACPI_HOTPLUG_CPU | 148 | #ifdef CONFIG_ACPI_HOTPLUG_CPU |
| 149 | /* Arch dependent functions for cpu hotplug support */ | 149 | /* Arch dependent functions for cpu hotplug support */ |
| 150 | int acpi_map_lsapic(acpi_handle handle, int physid, int *pcpu); | 150 | int acpi_map_cpu(acpi_handle handle, int physid, int *pcpu); |
| 151 | int acpi_unmap_lsapic(int cpu); | 151 | int acpi_unmap_cpu(int cpu); |
| 152 | #endif /* CONFIG_ACPI_HOTPLUG_CPU */ | 152 | #endif /* CONFIG_ACPI_HOTPLUG_CPU */ |
| 153 | 153 | ||
| 154 | int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base); | 154 | int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base); |