diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2024-02-13 22:05:36 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2024-02-15 22:07:42 +0100 |
| commit | 4176b541c2c68bf79d0a05f316713ed8f0c9cdb4 (patch) | |
| tree | 216273f3e98b893e47eeec39019c3ac9d40a62d6 /arch/x86/include/asm/apic.h | |
| parent | c0a66c2847908e41c771ca2355fba935a82a9f62 (diff) | |
x86/cpu/topology: Provide separate APIC registration functions
generic_processor_info() aside of being a complete misnomer is used for
both early boot registration and ACPI CPU hotplug.
While it's arguable that this can share some code, it results in code which
is hard to understand and kept around post init for no real reason.
Also the call sites do lots of manual fiddling in topology related
variables instead of having proper interfaces for the purpose which handle
the topology internals correctly.
Provide topology_register_apic(), topology_hotplug_apic() and
topology_hotunplug_apic() which have the extra magic of the call sites
incorporated and for now are wrappers around generic_processor_info().
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Michael Kelley <mhklinux@outlook.com>
Tested-by: Sohil Mehta <sohil.mehta@intel.com>
Link: https://lore.kernel.org/r/20240213210251.605007456@linutronix.de
Diffstat (limited to 'arch/x86/include/asm/apic.h')
| -rw-r--r-- | arch/x86/include/asm/apic.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h index 11938d5206f4..28e9aa46d1ed 100644 --- a/arch/x86/include/asm/apic.h +++ b/arch/x86/include/asm/apic.h @@ -171,7 +171,10 @@ extern bool apic_needs_pit(void); extern void apic_send_IPI_allbutself(unsigned int vector); +extern void topology_register_apic(u32 apic_id, u32 acpi_id, bool present); extern void topology_register_boot_apic(u32 apic_id); +extern int topology_hotplug_apic(u32 apic_id, u32 acpi_id); +extern void topology_hotunplug_apic(unsigned int cpu); #else /* !CONFIG_X86_LOCAL_APIC */ static inline void lapic_shutdown(void) { } |