From akpm@osdl.org Thu Apr 28 00:29:30 2005
Subject: [patch 18/20] ACPI based I/O APIC hot-plug: add interfaces
To: greg@kroah.com
Cc: akpm@osdl.org, kaneshige.kenji@jp.fujitsu.com
From: akpm@osdl.org
Date: Thu, 28 Apr 2005 00:25:58 -0700
From: "Kenji Kaneshige" <kaneshige.kenji@jp.fujitsu.com>
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>
---
arch/i386/kernel/acpi/boot.c | 16 ++++++++++++++++
arch/ia64/kernel/acpi.c | 17 +++++++++++++++++
include/linux/acpi.h | 3 +++
3 files changed, 36 insertions(+)
--- gregkh-2.6.orig/arch/i386/kernel/acpi/boot.c 2005-04-20 21:25:10.000000000 -0700
+++ gregkh-2.6/arch/i386/kernel/acpi/boot.c 2005-05-03 22:28:52.000000000 -0700
@@ -506,6 +506,22 @@
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,
--- gregkh-2.6.orig/arch/ia64/kernel/acpi.c 2005-04-06 11:47:46.000000000 -0700
+++ gregkh-2.6/arch/ia64/kernel/acpi.c 2005-05-03 22:28:52.000000000 -0700
@@ -838,4 +838,21 @@
return AE_OK;
}
#endif /* CONFIG_NUMA */
+
+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);
+
#endif /* CONFIG_ACPI_BOOT */
--- gregkh-2.6.orig/include/linux/acpi.h 2005-04-06 11:47:48.000000000 -0700
+++ gregkh-2.6/include/linux/acpi.h 2005-05-03 22:28:52.000000000 -0700
@@ -403,6 +403,9 @@
int acpi_unmap_lsapic(int cpu);
#endif /* CONFIG_ACPI_HOTPLUG_CPU */
+int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
+int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
+
extern int acpi_mp_config;
extern u32 pci_mmcfg_base_addr;