linux-kernel - Re: [PATCH 1/5] arm: ioremap: Implement standard PCI function pci_remap

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Message-ID: <YZ5fez3JSUgl+NNq@shell.armlinux.org.uk>
Date:   Wed, 24 Nov 2021 15:51:23 +0000
From:   "Russell King (Oracle)" <linux@...linux.org.uk>
To:     Pali Rohár <pali@...nel.org>
Cc:     Andrew Lunn <andrew@...n.ch>,
        Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
        Gregory Clement <gregory.clement@...tlin.com>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Wilczyński <kw@...ux.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Dominik Brodowski <linux@...inikbrodowski.net>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Ludovic Desroches <ludovic.desroches@...rochip.com>,
        Marek Behún <kabel@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-pci@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/5] arm: ioremap: Implement standard PCI function
 pci_remap_iospace()

On Wed, Nov 24, 2021 at 04:41:12PM +0100, Pali Rohár wrote:
> pci_remap_iospace() is standard PCI core function. Architecture code can
> reimplement default core implementation if needs custom arch specific
> functionality.
> 
> ARM needs custom implementation due to pci_ioremap_set_mem_type() hook
> which allows ARM platforms to change mem type for iospace.
> 
> Implement this pci_remap_iospace() function for ARM architecture to
> correctly handle pci_ioremap_set_mem_type() hook, which allows usage of
> this standard PCI core function also for platforms which needs different
> mem type (e.g. Marvell Armada 375, 38x and 39x).
> 
> Signed-off-by: Pali Rohár <pali@...nel.org>

Reviewed-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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