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| author | Jiang Liu <jiang.liu@linux.intel.com> | 2015-04-13 14:11:24 +0800 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2015-04-24 15:36:47 +0200 |
| commit | b5dc8e6c21e7ffba0246bf39cea97805c142bf85 (patch) | |
| tree | ea81d12913f3ba70cef6bec5cdcc863775327410 /arch/x86/kernel/apic/io_apic.c | |
| parent | 5f0052f9522b84269e1b3b435a806f873d992702 (diff) | |
| download | op-kernel-dev-b5dc8e6c21e7ffba0246bf39cea97805c142bf85.zip op-kernel-dev-b5dc8e6c21e7ffba0246bf39cea97805c142bf85.tar.gz | |
x86/irq: Use hierarchical irqdomain to manage CPU interrupt vectors
Abstract CPU local APIC as an interrupt controller and create an
irqdomain for it to manage CPU interrupt vectors. It's the base to
enable hierarchical irqdomains on x86 systems.
The final irqdomain hierarchy will look like this:
IOAPIC domain ----|
MSI/MSI-x domain ----> [Interrupt Remapping domain] -> CPU vector domain
HPET_IRQ domain ----| ^
|
DMAR domain ----------------------------------------------|
HT_IRQ domain ----------------------------------------------|
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: David Cohen <david.a.cohen@linux.intel.com>
Cc: Sander Eikelenboom <linux@eikelenboom.it>
Cc: David Vrabel <david.vrabel@citrix.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dimitri Sivanich <sivanich@sgi.com>
Cc: Grant Likely <grant.likely@linaro.org>
Link: http://lkml.kernel.org/r/1428905519-23704-3-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel/apic/io_apic.c')
| -rw-r--r-- | arch/x86/kernel/apic/io_apic.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c index f4dc246..56d5321 100644 --- a/arch/x86/kernel/apic/io_apic.c +++ b/arch/x86/kernel/apic/io_apic.c @@ -2356,9 +2356,6 @@ static int mp_irqdomain_create(int ioapic) ioapic_dynirq_base = max(ioapic_dynirq_base, gsi_cfg->gsi_end + 1); - if (gsi_cfg->gsi_base == 0) - irq_set_default_host(ip->irqdomain); - return 0; } |
