diff options
| author |   Jiang Liu <jiang.liu@linux.intel.com> | 2014-10-27 13:21:47 +0800 |
|---|---|---|
| committer |   Thomas Gleixner <tglx@linutronix.de> | 2014-12-16 14:08:15 +0100 |
| commit | e89900c9ad75a1b80e1f1f46ce9c9bb0e7ea1d96 (patch) | |
| tree | 34711ca047dd11efbf4dd06cb0cc995822dbe03f /include/linux | |
| parent | x86, irq, ACPI: Implement interfaces to support ACPI based IOAPIC hot-removal (diff) | |
| download | linux-dev-e89900c9ad75a1b80e1f1f46ce9c9bb0e7ea1d96.tar.xz linux-dev-e89900c9ad75a1b80e1f1f46ce9c9bb0e7ea1d96.zip | |
x86, irq: Introduce helper to check whether an IOAPIC has been registered
Introduce acpi_ioapic_registered() to check whether an IOAPIC has already
been registered, it will be used when enabling IOAPIC hotplug.
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Len Brown <len.brown@intel.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Prarit Bhargava <prarit@redhat.com>
Link: http://lkml.kernel.org/r/1414387308-27148-18-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/acpi.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 407a12f663eb..a81dd437a53c 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -148,6 +148,7 @@ int acpi_unmap_lsapic(int cpu); int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base); int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base); +int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base); void acpi_irq_stats_init(void); extern u32 acpi_irq_handled; extern u32 acpi_irq_not_handled; |