[PATCH v1 00/21] Use MSI chip to configure MSI/MSI-X in all platforms

[Yijing Wang]

This series is based Bjorn's pci-next branch + Alexander Gordeev's two patches
"Remove arch_msi_check_device()" link: https://lkml.org/lkml/2014/7/12/41

Currently, there are a lot of weak arch functions in MSI code.
Thierry Reding Introduced MSI chip framework to configure MSI/MSI-X in arm.
This series use MSI chip framework to refactor MSI code across all platforms
to eliminate weak arch functions. It has been tested fine in x86(with or without
irq remap).


RFC->v1: Updated "[patch 4/21] x86/xen/MSI: Eliminate...", export msi_chip instead
         of #ifdef to fix MSI bug in xen running in x86. 
		 Rename arch_get_match_msi_chip() to arch_find_msi_chip().
		 Drop use struct device as the msi_chip argument, we will do that
		 later in another patchset.

Yijing Wang (21):
  PCI/MSI: Clean up struct msi_chip argument
  PCI/MSI: Remove useless bus->msi assignment
  MSI: Remove the redundant irq_set_chip_data()
  x86/xen/MSI: Eliminate arch_msix_mask_irq() and arch_msi_mask_irq()
  PCI/MSI: Introduce weak arch_find_msi_chip() to find MSI chip
  PCI/MSI: Refactor struct msi_chip to make it become more common
  x86/MSI: Use MSI chip framework to configure MSI/MSI-X irq
  x86/xen/MSI: Use MSI chip framework to configure MSI/MSI-X irq
  Irq_remapping/MSI: Use MSI chip framework to configure MSI/MSI-X irq
  x86/MSI: Remove unused MSI weak arch functions
  MIPS/Octeon/MSI: Use MSI chip framework to configure MSI/MSI-X irq
  MIPS/Xlp: Remove the dead function destroy_irq() to fix build error
  MIPS/Xlp/MSI: Use MSI chip framework to configure MSI/MSI-X irq
  MIPS/Xlr/MSI: Use MSI chip framework to configure MSI/MSI-X irq
  Powerpc/MSI: Use MSI chip framework to configure MSI/MSI-X irq
  s390/MSI: Use MSI chip framework to configure MSI/MSI-X irq
  arm/iop13xx/MSI: Use MSI chip framework to configure MSI/MSI-X irq
  IA64/MSI: Use MSI chip framework to configure MSI/MSI-X irq
  Sparc/MSI: Use MSI chip framework to configure MSI/MSI-X irq
  tile/MSI: Use MSI chip framework to configure MSI/MSI-X irq
  PCI/MSI: Clean up unused MSI arch functions

 arch/arm/mach-iop13xx/include/mach/pci.h |    2 +
 arch/arm/mach-iop13xx/iq81340mc.c        |    1 +
 arch/arm/mach-iop13xx/iq81340sc.c        |    1 +
 arch/arm/mach-iop13xx/msi.c              |    9 ++-
 arch/arm/mach-iop13xx/pci.c              |    6 ++
 arch/ia64/kernel/msi_ia64.c              |   18 ++++-
 arch/mips/pci/msi-octeon.c               |   35 +++++---
 arch/mips/pci/msi-xlp.c                  |   18 +++-
 arch/mips/pci/pci-xlr.c                  |   15 +++-
 arch/powerpc/kernel/msi.c                |   14 +++-
 arch/s390/pci/pci.c                      |   18 ++++-
 arch/sparc/kernel/pci.c                  |   14 +++-
 arch/tile/kernel/pci_gx.c                |   14 +++-
 arch/x86/include/asm/apic.h              |    4 +
 arch/x86/include/asm/pci.h               |    4 +-
 arch/x86/include/asm/x86_init.h          |    7 --
 arch/x86/kernel/apic/io_apic.c           |   16 ++++-
 arch/x86/kernel/x86_init.c               |   34 --------
 arch/x86/pci/xen.c                       |   60 +++++++++------
 drivers/iommu/irq_remapping.c            |    9 ++-
 drivers/irqchip/irq-armada-370-xp.c      |   12 +--
 drivers/pci/host/pci-tegra.c             |    8 +-
 drivers/pci/host/pcie-designware.c       |    4 +-
 drivers/pci/host/pcie-rcar.c             |    8 +-
 drivers/pci/msi.c                        |  123 +++++++++++++-----------------
 drivers/pci/probe.c                      |    1 -
 include/linux/msi.h                      |   26 ++-----
 27 files changed, 268 insertions(+), 213 deletions(-)