From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jiang Liu Subject: [RFC Patch V1 0/4] enhance IOAPIC core to support hotplug Date: Tue, 27 May 2014 16:24:33 +0800 Message-ID: <1401179077-2020-1-git-send-email-jiang.liu@linux.intel.com> Return-path: Sender: linux-pci-owner@vger.kernel.org To: Benjamin Herrenschmidt , Thomas Gleixner , Grant Likely , Ingo Molnar , "H. Peter Anvin" , "Rafael J. Wysocki" , Bjorn Helgaas , Randy Dunlap , Yinghai Lu Cc: Jiang Liu , Konrad Rzeszutek Wilk , Andrew Morton , Tony Luck , Joerg Roedel , Paul Gortmaker , Greg Kroah-Hartman , x86@kernel.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linux-acpi@vger.kernel.org List-Id: linux-acpi@vger.kernel.org This patch set enhances IOAPIC core to support IOAPIC hotplug on x86 platforms. It's based on another patch set "use irqdomain to dynamically allocate IRQ for IOAPIC" at https://lkml.org/lkml/2014/5/27/86 You may pull from https://github.com/jiangliu/linux.git ioapic/hotplug Once passed review, we will use Yinghai's patches to glue IOAPIC driver and ACPI PCI root driver to handle hotplug events. Jiang Liu (4): x86, irq: refine mp_register_ioapic() to prepare for IOAPIC hotplug x86, irq, ACPI: introduce a rwsem to protect IOAPIC operations from hotplug x86, irq, ACPI: implement interface to support ACPI based IOAPIC hot-addition x86, irq, ACPI: implement interface to support ACPI based IOAPIC hot-removal arch/x86/include/asm/io_apic.h | 5 +- arch/x86/kernel/acpi/boot.c | 44 +++++++-- arch/x86/kernel/apic/io_apic.c | 207 ++++++++++++++++++++++++++++++---------- 3 files changed, 196 insertions(+), 60 deletions(-) -- 1.7.10.4