[PATCH v2 0/9] PCI: MMCONFIG clean up

Tomasz Nowicki tomasz.nowicki at linaro.org
Fri Feb 27 07:00:35 PST 2015


MCFG ACPI table and PCI ECAM standard have no arch dependencies so it can be
used across all architectures. Currently MMCONFIG related code resides in
arch/x86 directories. This patch set is going to isolate non-architecure
specific code and make it accessible for all architectures.

v1 -> v2 changes:
- use generic readb/readw etc. accessors instead of AMD Fam10h workaround
- separate ACPI and ECAM code
- improve ECAM code naming

Tomasz Nowicki (9):
  x86, pci: Clean up comment about buggy MMIO config space access for
    AMD Fam10h CPUs.
  x86, pci: Abstract PCI config accessors and use AMD Fam10h workaround
    exclusively.
  x86, pci: Reorder logic of pci_mmconfig_insert() function
  x86, pci, acpi: Move arch-agnostic MMCONFIG (aka ECAM) and ACPI code
    out of arch/x86/ directory
  pci, acpi, mcfg: Provide generic implementation of MCFG code
    initialization.
  x86, pci: mmconfig_{32,64}.c code refactoring - remove code
    duplication.
  x86, pci, ecam: mmconfig_64.c becomes default implementation for ECAM
    driver.
  pci, acpi, mcfg: Share ACPI PCI config space accessors.
  pci, ecam: Improve naming for ecam.c content and areas where it is
    used.

 arch/x86/Kconfig               |   3 +
 arch/x86/include/asm/pci_x86.h |  34 +---
 arch/x86/pci/Makefile          |   5 +-
 arch/x86/pci/acpi.c            |   3 +-
 arch/x86/pci/mmconfig-shared.c | 340 +++++++++++----------------------------
 arch/x86/pci/mmconfig_32.c     |  47 ++----
 arch/x86/pci/mmconfig_64.c     | 153 ------------------
 arch/x86/pci/numachip.c        |  27 +---
 drivers/acpi/Makefile          |   1 +
 drivers/acpi/mcfg.c            | 121 ++++++++++++++
 drivers/pci/Kconfig            |   7 +
 drivers/pci/Makefile           |   5 +
 drivers/pci/ecam.c             | 356 +++++++++++++++++++++++++++++++++++++++++
 drivers/xen/pci.c              |   6 +-
 include/linux/ecam.h           |  56 +++++++
 15 files changed, 668 insertions(+), 496 deletions(-)
 delete mode 100644 arch/x86/pci/mmconfig_64.c
 create mode 100644 drivers/acpi/mcfg.c
 create mode 100644 drivers/pci/ecam.c
 create mode 100644 include/linux/ecam.h

-- 
1.9.1




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