linux-kernel - Re: [PATCH V5 00/15] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI

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Date:	Mon, 29 Feb 2016 14:03:45 -0500
From:	Sinan Kaya <okaya@...eaurora.org>
To:	Tomasz Nowicki <tn@...ihalf.com>, helgaas@...nel.org,
	arnd@...db.de, will.deacon@....com, catalin.marinas@....com,
	rafael@...nel.org, hanjun.guo@...aro.org,
	Lorenzo.Pieralisi@....com, jiang.liu@...ux.intel.com,
	jchandra@...adcom.com, Stefano.Stabellini@...citrix.com
Cc:	robert.richter@...iumnetworks.com, mw@...ihalf.com,
	Liviu.Dudau@....com, ddaney@...iumnetworks.com,
	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,
	jcm@...hat.com
Subject: Re: [PATCH V5 00/15] MMCONFIG refactoring and support for ARM64 PCI
 hostbridge init based on ACPI

On 2/16/2016 8:53 AM, Tomasz Nowicki wrote:
> From the functionality point of view this series might be split into the
> following logic parts:
> 1. Make MMCONFIG code arch-agnostic which allows all architectures to collect
>    PCI config regions and used when necessary.
> 2. Move non-arch specific bits to the core code.
> 3. Use MMCONFIG code and implement generic ACPI based PCI host controller driver.
> 4. Enable above driver on ARM64
> 
> Patches has been built on top of 4.5-rc3 and can be found here:
> git@...hub.com:semihalf-nowicki-tomasz/linux.git (pci-acpi-v5)
> 
> NOTE, this patch set depends on Lorenzo's fixes:
> https://patchwork.ozlabs.org/patch/576450/
> which can be found in pci-acpi-v5 branch.
> 
> This has been tested on Cavium ThunderX server, JunoR2, HP RX2660 IA64, x86,
> Hip05, X-Gene and QEMU-aarch64. Any help in reviewing and testing is very appreciated.
> 
> v4 -> v5
> - dropped MCFG refactoring group patches 1-6 from series v4 and integrated Jayachandran's patch
>   https://patchwork.ozlabs.org/patch/575525/
> - rewrite PCI legacy IRQs allocation
> - squashed two patches 11 and 12 from series v4, fixed bisection issue
> - changelog improvements
> - rebased to 4.5-rc3
> 
> v3 -> v4
> - dropped Jiang's fix http://lkml.iu.edu/hypermail/linux/kernel/1601.1/04318.html
> - added Lorenzo's fix patch 19/24
> - ACPI PCI bus domain number assigning cleanup
> - changed resource management, we now claim and reassign resources
> - improvements for applying quirks
> - dropped Matthew's http://www.spinics.net/lists/linux-pci/msg45950.html dependency
> - rebased to 4.5-rc1
> 

Having tested v4 and v5, I'm seeing some resource assignment problems and address conflicts. 
And problems booting QEMU.

Anybody else seeing the same?



-- 
Sinan Kaya
Qualcomm Technologies, Inc. on behalf of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project