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| author | Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> | 2005-04-28 09:25:58 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2005-06-28 06:52:44 +0200 |
| commit | b1bb248a5d2230a3d8ef42199c742194a8580b15 (patch) | |
| tree | 5335d22256e1c6f755f7aff01432ed2d5d722c9b /arch/i386/kernel | |
| parent | [PATCH] acpi hotplug: decouple slot power state changes from physical hotplug (diff) | |
| download | linux-b1bb248a5d2230a3d8ef42199c742194a8580b15.tar.xz linux-b1bb248a5d2230a3d8ef42199c742194a8580b15.zip | |
[PATCH] ACPI based I/O APIC hot-plug: add interfaces
This patch adds the following new interfaces for I/O xAPIC
hotplug. The implementation of these interfaces depends on each
architecture.
o int acpi_register_ioapic(acpi_handle handle, u64 phys_addr,
u32 gsi_base);
This new interface is to add a new I/O xAPIC specified by
phys_addr and gsi_base pair. phys_addr is the physical address
to which the I/O xAPIC is mapped and gsi_base is global system
interrupt base of the I/O xAPIC. acpi_register_ioapic returns
0 on success, or negative value on error.
o int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
This new interface is to remove a I/O xAPIC specified by
gsi_base. acpi_unregister_ioapic returns 0 on success, or
negative value on error.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'arch/i386/kernel')
| -rw-r--r-- | arch/i386/kernel/acpi/boot.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c index 9f63ae0f404b..f5360d88bcf4 100644 --- a/arch/i386/kernel/acpi/boot.c +++ b/arch/i386/kernel/acpi/boot.c @@ -507,6 +507,22 @@ acpi_unmap_lsapic(int cpu) EXPORT_SYMBOL(acpi_unmap_lsapic); #endif /* CONFIG_ACPI_HOTPLUG_CPU */ +int +acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base) +{ + /* TBD */ + return -EINVAL; +} +EXPORT_SYMBOL(acpi_register_ioapic); + +int +acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base) +{ + /* TBD */ + return -EINVAL; +} +EXPORT_SYMBOL(acpi_unregister_ioapic); + static unsigned long __init acpi_scan_rsdp ( unsigned long start, |