linux-kernel - Re: [RFC PATCH V5 5/5] PCI: thunder-pem: Support quirky configuration space access for ACPI based PCI host controller

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Message-ID: <20160809110413.GV22012@rric.localdomain>
Date:	Tue, 9 Aug 2016 13:04:13 +0200
From:	Robert Richter <robert.richter@...ium.com>
To:	Tomasz Nowicki <tn@...ihalf.com>
CC:	<helgaas@...nel.org>, <arnd@...db.de>, <will.deacon@....com>,
	<catalin.marinas@....com>, <rafael@...nel.org>,
	<Lorenzo.Pieralisi@....com>, <hanjun.guo@...aro.org>,
	<okaya@...eaurora.org>, <jchandra@...adcom.com>,
	<cov@...eaurora.org>, <dhdang@....com>,
	<ard.biesheuvel@...aro.org>, <mw@...ihalf.com>,
	<Liviu.Dudau@....com>, <ddaney@...iumnetworks.com>,
	<wangyijing@...wei.com>, <msalter@...hat.com>,
	<linux-pci@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linaro-acpi@...ts.linaro.org>, <jcm@...hat.com>,
	<andrea.gallo@...aro.org>, <jeremy.linton@....com>,
	<liudongdong3@...wei.com>, <gabriele.paoloni@...wei.com>,
	<jhugo@...eaurora.org>, <linux-acpi@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [RFC PATCH V5 5/5] PCI: thunder-pem: Support quirky
 configuration space access for ACPI based PCI host controller

On 08.08.16 15:05:41, Tomasz Nowicki wrote:
> Add infrastructure to support ThunderX PEM specific PCI configuration space
> access for ACPI based PCI host controller. This involves:
> 1. New initialization call thunder_pem_cfg_init() to create configuration
> space mapping based on hardcoded range addresses
> 2. thunder_pem_init() ACPI extension to obtain hardcoded addresses for
> PEM specific register ranges
> 3. New quirk entry (for common quirk array) which identifies platform and
> calls thunder_pem_cfg_init() from [1]
> 
> Signed-off-by: Tomasz Nowicki <tn@...ihalf.com>

Acked-by: Robert Richter <rrichter@...ium.com>

> ---
>  drivers/pci/host/mcfg-quirks.c     |  7 +++
>  drivers/pci/host/mcfg-quirks.h     |  4 ++
>  drivers/pci/host/pci-thunder-pem.c | 96 ++++++++++++++++++++++++++++++++------
>  3 files changed, 94 insertions(+), 13 deletions(-)