linux/drivers/of
Linus Torvalds 9e66645d72 Merge branch 'irq-irqdomain-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq domain updates from Thomas Gleixner:
 "The real interesting irq updates:

   - Support for hierarchical irq domains:

     For complex interrupt routing scenarios where more than one
     interrupt related chip is involved we had no proper representation
     in the generic interrupt infrastructure so far.  That made people
     implement rather ugly constructs in their nested irq chip
     implementations.  The main offenders are x86 and arm/gic.

     To distangle that mess we have now hierarchical irqdomains which
     seperate the various interrupt chips and connect them via the
     hierarchical domains.  That keeps the domain specific details
     internal to the particular hierarchy level and removes the
     criss/cross referencing of chip internals.  The resulting hierarchy
     for a complex x86 system will look like this:

        vector          mapped: 74
          msi-0         mapped: 2
          dmar-ir-1     mapped: 69
            ioapic-1    mapped: 4
            ioapic-0    mapped: 20
            pci-msi-2   mapped: 45
          dmar-ir-0     mapped: 3
            ioapic-2    mapped: 1
            pci-msi-1   mapped: 2
          htirq         mapped: 0

     Neither ioapic nor pci-msi know about the dmar interrupt remapping
     between themself and the vector domain.  If interrupt remapping is
     disabled ioapic and pci-msi become direct childs of the vector
     domain.

     In hindsight we should have done that years ago, but in hindsight
     we always know better :)

   - Support for generic MSI interrupt domain handling

     We have more and more non PCI related MSI interrupts, so providing
     a generic infrastructure for this is better than having all
     affected architectures implementing their own private hacks.

   - Support for PCI-MSI interrupt domain handling, based on the generic
     MSI support.

     This part carries the pci/msi branch from Bjorn Helgaas pci tree to
     avoid a massive conflict.  The PCI/MSI parts are acked by Bjorn.

  I have two more branches on top of this.  The full conversion of x86
  to hierarchical domains and a partial conversion of arm/gic"

* 'irq-irqdomain-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (41 commits)
  genirq: Move irq_chip_write_msi_msg() helper to core
  PCI/MSI: Allow an msi_controller to be associated to an irq domain
  PCI/MSI: Provide mechanism to alloc/free MSI/MSIX interrupt from irqdomain
  PCI/MSI: Enhance core to support hierarchy irqdomain
  PCI/MSI: Move cached entry functions to irq core
  genirq: Provide default callbacks for msi_domain_ops
  genirq: Introduce msi_domain_alloc/free_irqs()
  asm-generic: Add msi.h
  genirq: Add generic msi irq domain support
  genirq: Introduce callback irq_chip.irq_write_msi_msg
  genirq: Work around __irq_set_handler vs stacked domains ordering issues
  irqdomain: Introduce helper function irq_domain_add_hierarchy()
  irqdomain: Implement a method to automatically call parent domains alloc/free
  genirq: Introduce helper irq_domain_set_info() to reduce duplicated code
  genirq: Split out flow handler typedefs into seperate header file
  genirq: Add IRQ_SET_MASK_OK_DONE to support stacked irqchip
  genirq: Introduce irq_chip.irq_compose_msi_msg() to support stacked irqchip
  genirq: Add more helper functions to support stacked irq_chip
  genirq: Introduce helper functions to support stacked irq_chip
  irqdomain: Do irq_find_mapping and set_type for hierarchy irqdomain in case OF
  ...
2014-12-10 09:01:01 -08:00
..
testcase-data of: Fix overflow bug in string property parsing functions 2014-11-04 10:19:48 +00:00
address.c of/base: Fix PowerPC address parsing hack 2014-11-18 11:46:44 -06:00
base.c of: Fix overflow bug in string property parsing functions 2014-11-04 10:19:48 +00:00
device.c of: rename of_aliases_mutex to just of_mutex 2014-07-07 13:42:52 +01:00
dynamic.c of: Spelling s/stucture/structure/ 2014-11-18 11:33:10 -06:00
fdt_address.c of/fdt: add FDT address translation support 2014-05-20 15:19:25 -05:00
fdt.c of/fdt: memblock_reserve /memreserve/ regions in the case of partial overlap 2014-11-26 12:35:52 +00:00
irq.c of/irq: Fix lookup to use 'interrupts-extended' property first 2014-08-16 09:03:58 +01:00
Kconfig of/selftest: Use the resolver to fixup phandles 2014-10-04 21:24:35 +01:00
Makefile of: Introduce Device Tree resolve support. 2014-10-04 21:24:26 +01:00
of_mdio.c net: phy: adjust fixed_phy_register() return value 2014-10-07 13:06:45 -04:00
of_mtd.c of_mtd: Add helpers to get ECC strength and ECC step size 2014-03-10 22:42:28 -07:00
of_net.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2014-04-02 20:53:45 -07:00
of_pci_irq.c of_pci_irq: kill useless variable in of_irq_parse_pci() 2014-05-27 12:13:34 +01:00
of_pci.c PCI/MSI: Rename "struct msi_chip" to "struct msi_controller" 2014-11-12 07:49:38 -07:00
of_private.h of: Transactional DT support. 2014-07-23 17:29:15 -06:00
of_reserved_mem.c drivers: of: add return value to of_reserved_mem_device_init() 2014-10-29 16:33:14 -07:00
pdt.c of: device_node kobject lifecycle fixes 2014-03-19 14:58:40 +00:00
platform.c of: amba: use of_dma_configure for AMBA devices 2014-09-22 11:26:59 +01:00
resolver.c of: Introduce Device Tree resolve support. 2014-10-04 21:24:26 +01:00
selftest.c of/selftest: Fix testing when /aliases is missing 2014-11-20 15:32:49 +00:00