From: tn@semihalf•com (Tomasz Nowicki)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH V2 21/23] pci, acpi: Support for ACPI based PCI hostbridge init
Date: Mon, 21 Dec 2015 11:21:02 +0100 [thread overview]
Message-ID: <5677D28E.6010803@semihalf.com> (raw)
In-Reply-To: <2277339.U6fWlSIDzy@wuerfel>
On 18.12.2015 13:40, Arnd Bergmann wrote:
> On Wednesday 16 December 2015 16:16:31 Tomasz Nowicki wrote:
>> Because of two patch series:
>> 1. Jiang Liu's common interface to support PCI host bridge init
>> 2. MMCONFIG refactoring (part of this patch set)
>> now we can think about generic ACPI based PCI host bridge driver
>> out of arch/ directory.
>>
>> This driver use information from MCFG table (PCI config space regions)
>> and _CRS method (IO/irq resources) to initialize PCI hostbridge.
>>
>> TBD: We are still not sure whether we should reassign resources
>> after PCI bus enumeration or trust firmware to do all that work for
>> us properly.
>>
>> Signed-off-by: Tomasz Nowicki <tn@semihalf•com>
>> Signed-off-by: Hanjun Guo <hanjun.guo@linaro•org>
>> Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd•com>
>> CC: Arnd Bergmann <arnd@arndb•de>
>> CC: Catalin Marinas <catalin.marinas@arm•com>
>> CC: Liviu Dudau <Liviu.Dudau@arm•com>
>> CC: Lorenzo Pieralisi <Lorenzo.Pieralisi@arm•com>
>> CC: Will Deacon <will.deacon@arm•com>
>> Tested-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd•com>
>>
>
> I think this code could better live in drivers/acpi/pci_root.c
> along with all the related functions. It's not really a driver
> by itself and cannot be a loadable module or built on other
> architectures.
>
> You can put all the code inside an #ifdef ARCH_PCI_HOST_GENERIC_ACPI
> there.
>
Makes sense to me, thanks.
Tomasz
next prev parent reply other threads:[~2015-12-21 10:21 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-16 15:16 [PATCH V2 00/23] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI Tomasz Nowicki
2015-12-16 15:16 ` [PATCH V2 01/23] x86, pci: Reorder logic of pci_mmconfig_insert() function Tomasz Nowicki
2015-12-16 15:16 ` [PATCH V2 02/23] x86, pci, acpi: Move arch-agnostic MMCONFIG (aka ECAM) and ACPI code out of arch/x86/ directory Tomasz Nowicki
2015-12-16 15:16 ` [PATCH V2 03/23] pci, acpi, mcfg: Provide generic implementation of MCFG code initialization Tomasz Nowicki
2015-12-16 15:16 ` [PATCH V2 04/23] x86, pci: mmconfig_{32, 64}.c code refactoring - remove code duplication Tomasz Nowicki
2015-12-16 15:16 ` [PATCH V2 05/23] x86, pci, ecam: mmconfig_64.c becomes default implementation for ECAM driver Tomasz Nowicki
2015-12-16 15:16 ` [PATCH V2 06/23] XEN / PCI: Remove the dependence on arch x86 when PCI_MMCONFIG=y Tomasz Nowicki
2015-12-17 10:25 ` Tomasz Nowicki
2015-12-17 10:40 ` Tomasz Nowicki
2015-12-21 18:12 ` Stefano Stabellini
2015-12-22 8:34 ` Tomasz Nowicki
2015-12-16 15:16 ` [PATCH V2 07/23] pci, acpi, mcfg: Provide default RAW ACPI PCI config space accessors Tomasz Nowicki
2015-12-16 15:16 ` [PATCH V2 08/23] arm64, acpi: Use empty PCI config space accessors from mcfg.c file Tomasz Nowicki
2015-12-16 15:16 ` [PATCH V2 09/23] pci, acpi, ecam: Add flag to indicate whether ECAM region was hot added or not Tomasz Nowicki
2015-12-16 15:16 ` [PATCH V2 10/23] x86, pci: Cleanup platform specific MCFG data using previously added ECAM hot_added flag Tomasz Nowicki
2015-12-16 15:16 ` [PATCH V2 11/23] arm64, pci: Remove useless boot time IRQ assignment when booting with DT Tomasz Nowicki
2016-01-12 13:50 ` Lorenzo Pieralisi
2016-01-12 16:13 ` Tomasz Nowicki
2016-01-12 17:56 ` David Daney
2016-01-13 9:43 ` Tomasz Nowicki
2015-12-16 15:16 ` [PATCH V2 12/23] pci, acpi: Move ACPI host bridge device companion assignment to core code Tomasz Nowicki
2015-12-16 15:16 ` [PATCH V2 13/23] x86, ia64, pci: Remove ACPI companion device from platform specific data Tomasz Nowicki
2015-12-16 15:16 ` [PATCH V2 14/23] pci, acpi: Provide generic way to assign bus domain number Tomasz Nowicki
2015-12-16 15:16 ` [PATCH V2 15/23] x86, ia64, pci: Convert arches to use PCI_DOMAINS_GENERIC Tomasz Nowicki
2015-12-16 15:16 ` [PATCH V2 16/23] x86, ia64: Include acpi_pci_{add|remove}_bus to the default pcibios_{add|remove}_bus implementation Tomasz Nowicki
2015-12-16 15:16 ` [PATCH V2 17/23] acpi, mcfg: Implement two calls that might be used to inject/remove MCFG region Tomasz Nowicki
2015-12-16 15:16 ` [PATCH V2 18/23] x86, acpi, pci: Use equivalent function introduced in previous patch Tomasz Nowicki
2015-12-16 15:16 ` [PATCH V2 19/23] acpi, mcfg: Add default PCI config accessors implementation and initial support for related quirks Tomasz Nowicki
2015-12-16 15:16 ` [PATCH V2 20/23] ACPI, PCI: Refine the way to handle translation_offset for ACPI resources Tomasz Nowicki
2015-12-16 15:16 ` [PATCH V2 21/23] pci, acpi: Support for ACPI based PCI hostbridge init Tomasz Nowicki
2015-12-18 12:40 ` Arnd Bergmann
2015-12-21 10:21 ` Tomasz Nowicki [this message]
2015-12-16 15:16 ` [PATCH V2 22/23] pci, acpi: Match PCI config space accessors against platfrom specific quirks Tomasz Nowicki
2015-12-21 11:47 ` Gabriele Paoloni
2015-12-21 14:10 ` Arnd Bergmann
2015-12-21 17:29 ` David Daney
2015-12-21 22:42 ` Arnd Bergmann
2015-12-21 23:24 ` Jon Masters
2015-12-21 23:10 ` Jon Masters
2015-12-22 8:45 ` Tomasz Nowicki
2015-12-22 9:29 ` Gabriele Paoloni
2015-12-22 16:36 ` Jon Masters
2015-12-22 16:45 ` Jon Masters
2015-12-22 17:49 ` Gabriele Paoloni
2015-12-22 10:20 ` Tomasz Nowicki
2015-12-22 14:48 ` Gabriele Paoloni
2015-12-23 9:38 ` Hanjun Guo
2016-01-08 14:16 ` Mark Salter
2016-01-08 14:36 ` Tomasz Nowicki
2016-01-08 14:51 ` Mark Salter
2016-01-08 14:42 ` Jeremy Linton
2016-01-08 15:01 ` Mark Rutland
2016-01-08 15:12 ` Mark Rutland
2016-01-08 16:07 ` Mark Salter
2015-12-16 15:16 ` [PATCH V2 23/23] arm64, pci, acpi: Start using ACPI based PCI host bridge driver for ARM64 Tomasz Nowicki
2015-12-17 21:24 ` [PATCH V2 00/23] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI Sinan Kaya
2015-12-18 12:26 ` Tomasz Nowicki
2015-12-18 18:56 ` okaya at codeaurora.org
2015-12-21 10:37 ` Tomasz Nowicki
2015-12-21 12:10 ` Lorenzo Pieralisi
2015-12-21 12:42 ` Tomasz Nowicki
2015-12-21 14:15 ` Arnd Bergmann
2015-12-21 15:26 ` Okaya at codeaurora.org
2015-12-21 22:39 ` Arnd Bergmann
2016-01-11 15:39 ` Lorenzo Pieralisi
2016-01-11 15:56 ` Sinan Kaya
2016-01-12 14:30 ` Arnd Bergmann
2016-01-12 18:38 ` Lorenzo Pieralisi
2016-01-12 21:37 ` Arnd Bergmann
2016-01-11 16:09 ` Lorenzo Pieralisi
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