On Fri, Sep 26, 2014 at 10:02:01PM +0800, Jiang Liu wrote: > We plan to restructure x86 interrupt code based on hierarchy irqdomain, > that is to build irqdomains for CPU vector, interrupt remapping unit, > IOAPIC, MSI and HPET etc and organize those irqdomains in hierarchy mode. > Each irqdomain manages corresponding interrupt controller and talks to > parent interrupt controller through public irqdomain interfaces. We also > support stacked irq_chip based on hierarchy irqdomain. It will make the > x86 interrupt architecture much more clear and more easy to maintain > with hierarchy irqdomain and stacked irq_chip. It may also help ARM > interrupt management architecture too. > > This is the second patch set to enable support of hierarchy irqdomain > on x86 platforms. It depends on the first part at: > https://lkml.org/lkml/2014/9/26/501 > And you may access it at: > https://github.com/jiangliu/linux.git irqdomain/p2v2 > > And there will be a third patch set to convert IOAPIC driver to support > hierarchy irqdomain and clean up code. > > The first patch extends irqdomain interfaces to support hierarchy > irqdomain. Hope this interface could be used by other architectures too, > such as ARM/ARM64. > The second patch introduces two helper functions to support stacked > irq_chip. > Patch 3-9 implements an irqdomain to manange CPU interrupt vectors, and > it's the root irqdomain for x86 platforms. > Patch 10-13 converts Intel and AMD interrupt remapping drivers to > support hierarchy irqdomain. > Patch 14-16 converts HPET and MSI to support hierarchy irqdomain. > Patch 17-20 cleans up unsued code in x86 arch and interrupt remapping > drivers. > Patch 21-24 converts DMAR, HTIRQ and UV to support hierarchy irqdomain. > > We have tested this patchset on Intel 32-bit and 64-bit systems. And it > also passes Fengguang's 0day tests. But helps are need for testing: > 1) AMD interrupt remapping > 2) AMD HT_IRQ Adding Aravind. @Aravind: you might want to give that patchset a run just in case, to make sure it doesn't break anything on AMD. You'll need the previous patchset to go before too, though: https://lkml.kernel.org/r/1411738196-29958-1-git-send-email-jiang.liu@xxxxxxxxxxxxxxx I'm sure Jiang will help you if you have more questions. Thanks. -- Regards/Gruss, Boris. -- -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
