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Message-ID: <20151207203117.GB14429@localhost>
Date: Mon, 7 Dec 2015 14:31:17 -0600
From: Bjorn Helgaas <helgaas@...nel.org>
To: Tomasz Nowicki <tn@...ihalf.com>
Cc: bhelgaas@...gle.com, arnd@...db.de, will.deacon@....com,
catalin.marinas@....com, rjw@...ysocki.net, hanjun.guo@...aro.org,
Lorenzo.Pieralisi@....com, jiang.liu@...ux.intel.com,
robert.richter@...iumnetworks.com,
Narinder.Dhillon@...iumnetworks.com, ddaney@...iumnetworks.com,
Liviu.Dudau@....com, tglx@...utronix.de, wangyijing@...wei.com,
Suravee.Suthikulpanit@....com, msalter@...hat.com,
linux-pci@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org,
linaro-acpi@...ts.linaro.org
Subject: Re: [PATCH V1 00/11] MMCONFIG refactoring and ARM64 PCI hostbridge
init based on ACPI
On Tue, Oct 27, 2015 at 05:38:31PM +0100, Tomasz Nowicki wrote:
> From the functionality point of view this series might be split into two logic parts:
> 1. Making MMCONFIG code arch-agnostic which allows all architectures to collect
> PCI config regions and used when necessary.
> 2. Using generic MMCONFIG code and introducing ACPI based PCI hostbridge
> initialization for ARM64
>
> Patches has been built on top of:
> [Patch v7 0/7] Consolidate ACPI PCI root common code into ACPI core
> https://lkml.org/lkml/2015/10/14/31
> Git branch can be found here:
> https://git.linaro.org/leg/acpi/acpi.git/shortlog/refs/heads/pci-acpi-upstream
>
> This has been tested on Cavium ThunderX 1 socket server.
> Any help in reviewing and testing is very appreciated.
>
> Hanjun Guo (1):
> XEN / PCI: Remove the dependence on arch x86 when PCI_MMCONFIG=y
>
> Tomasz Nowicki (10):
> 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: Provide default RAW ACPI PCI config space accessors.
> pci, acpi, ecam: Add flag to indicate whether ECAM region was hot
> added or not.
> x86, pci: Use previously added ECAM hot_added flag to remove ECAM
> regions.
> pci, acpi: Provide generic way to assign bus domain number.
> arm64, pci, acpi: Support for ACPI based PCI hostbridge init
>
> arch/arm64/Kconfig | 6 +
> arch/arm64/kernel/pci.c | 208 ++++++++++++++++++++++++++++++++--
> arch/x86/Kconfig | 4 +
> arch/x86/include/asm/pci_x86.h | 28 +----
> arch/x86/pci/acpi.c | 17 +--
> arch/x86/pci/mmconfig-shared.c | 250 +++++++----------------------------------
> arch/x86/pci/mmconfig_32.c | 11 +-
> arch/x86/pci/mmconfig_64.c | 67 +----------
> arch/x86/pci/numachip.c | 1 +
> drivers/acpi/Makefile | 1 +
> drivers/acpi/mcfg.c | 104 +++++++++++++++++
> drivers/acpi/pci_root.c | 2 +-
> drivers/pci/Kconfig | 10 ++
> drivers/pci/Makefile | 5 +
> drivers/pci/ecam.c | 234 ++++++++++++++++++++++++++++++++++++++
> drivers/pci/pci.c | 30 ++++-
> drivers/xen/pci.c | 7 +-
> include/linux/acpi.h | 2 +
> include/linux/ecam.h | 44 ++++++++
> 19 files changed, 691 insertions(+), 340 deletions(-)
> create mode 100644 drivers/acpi/mcfg.c
> create mode 100644 drivers/pci/ecam.c
> create mode 100644 include/linux/ecam.h
Waiting for an updated version after all the discussion.
Bjorn
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