Re: [RFC PATCH V5 0/5] ECAM quirks handling for ARM64 platforms

[Duc Dang]

On Mon, Aug 8, 2016 at 6:05 AM, Tomasz Nowicki <tn@xxxxxxxxxxxx> wrote:
> Quirk handling relies on an idea of matching MCFG OEM ID, TABLE ID and
> revision (the ones from standard header of MCFG table).
>
> Static array is used to keep quirk entries. Each entry consists of
> mentioned MCFG IDs along with custom pci_ops structure and initialization call.
>
> As an example, the last patch presents quirk handling mechanism usage for
> ThunderX PEM driver.

Tested on X-Gene with X-Gene Ecam quirk and the PCIe ports work fine
with this patch set.

>
> v4 -> v5
> - rebase against v4.8-rc1
> - rework to exact MCFG OEM ID, TABLE ID, rev match
>   - use memcmp instead of strncmp
>   - no substring match
> - fix typos and dmesg message
>
> Tomasz Nowicki (5):
>   PCI: Embed pci_ecam_ops in pci_config_window structure
>   PCI/ACPI: Move ACPI ECAM mapping to generic MCFG driver
>   PCI: Check platform specific ECAM quirks
>   ARM64/PCI: Start using quirks handling for ACPI based PCI host
>     controller
>   PCI: thunder-pem: Support quirky configuration space access for ACPI
>     based PCI host controller
>
>  arch/arm64/kernel/pci.c            | 42 +----------------
>  drivers/acpi/pci_mcfg.c            | 40 ++++++++++++++++
>  drivers/pci/ecam.c                 |  6 +--
>  drivers/pci/host/Makefile          |  1 +
>  drivers/pci/host/mcfg-quirks.c     | 93 ++++++++++++++++++++++++++++++++++++
>  drivers/pci/host/mcfg-quirks.h     | 24 ++++++++++
>  drivers/pci/host/pci-thunder-pem.c | 96 ++++++++++++++++++++++++++++++++------
>  include/linux/pci-acpi.h           |  5 ++
>  include/linux/pci-ecam.h           |  2 +-
>  9 files changed, 252 insertions(+), 57 deletions(-)
>  create mode 100644 drivers/pci/host/mcfg-quirks.c
>  create mode 100644 drivers/pci/host/mcfg-quirks.h
>
> --
> 1.9.1
>
Regards,
Duc Dang.