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From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
To: Robin Murphy <robin.murphy@arm.com>,
	linux-arm-kernel@lists.infradead.org,
	 devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: f.fainelli@gmail.com, robh+dt@kernel.org, ardb@kernel.org,
	hch@infradead.org,  narmstrong@baylibre.com, dwmw2@infradead.org,
	linux@armlinux.org.uk,  catalin.marinas@arm.com, arnd@arndb.de,
	will@kernel.org
Subject: Re: [RFC 10/13] iommu/arm-smmu-impl: Get rid of Marvell's implementation details
Date: Tue, 02 Mar 2021 15:06:58 +0100	[thread overview]
Message-ID: <6c26302c546afb4d9d35e044b3b5d643704d46a5.camel@suse.de> (raw)
In-Reply-To: <96b6c3e4-d9d3-270e-6d8e-7c826ae11827@arm.com>


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On Tue, 2021-03-02 at 11:40 +0000, Robin Murphy wrote:
> On 2021-02-26 14:03, Nicolas Saenz Julienne wrote:
> > arm-smmu can now deal with integrations on buses that don't support
> > 64bit MMIO accesses. No need to create a special case for that on
> > Marvell's integration.
> 
> This breaks compatibility with existing DTs.

Yes. On top of that, I had a brief word with robh on the topic of DT
properties. I'm going to explore alternatives that don't depend on it.

Regards,
Nicolas



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  reply	other threads:[~2021-03-03 22:06 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-26 14:02 [RFC 00/13] Generic way of dealing with broken 64-bit buses Nicolas Saenz Julienne
2021-02-26 14:02 ` [RFC 01/13] dt-bindings: Introduce 64bit-mmio-broken Nicolas Saenz Julienne
2021-02-26 14:02 ` [RFC 02/13] driver core: Introduce MMIO configuration Nicolas Saenz Julienne
2021-03-02 11:29   ` Robin Murphy
2021-03-02 14:09     ` Nicolas Saenz Julienne
2021-02-26 14:02 ` [RFC 03/13] of: device: Introduce of_mmio_configure() Nicolas Saenz Julienne
2021-02-26 14:02 ` [RFC 04/13] driver core: plafrom: Introduce platform_mmio_configure() Nicolas Saenz Julienne
2021-02-26 14:02 ` [RFC 05/13] pci: Introduce pci_mmio_configure() Nicolas Saenz Julienne
2021-02-26 14:02 ` [RFC 06/13] device core: Introduce dev_64bit_mmio_supported() Nicolas Saenz Julienne
2021-02-26 14:02 ` [RFC 07/13] arm64: Mark ARCH_MVEBU as needing broken 64bit MMIO support Nicolas Saenz Julienne
2021-02-26 14:03 ` [RFC 08/13] arm64: dts: marvell: armada-ap80x: Mark config-space bus as 64bit-mmio-broken Nicolas Saenz Julienne
2021-02-26 14:03 ` [RFC 09/13] iommu/arm-smmu: Make use of dev_64bit_mmio_supported() Nicolas Saenz Julienne
2021-03-02  9:32   ` Arnd Bergmann
2021-03-02 12:42     ` Nicolas Saenz Julienne
2021-03-02 11:07   ` Robin Murphy
2021-03-02 13:38     ` Nicolas Saenz Julienne
2021-03-03  8:44     ` Arnd Bergmann
2021-02-26 14:03 ` [RFC 10/13] iommu/arm-smmu-impl: Get rid of Marvell's implementation details Nicolas Saenz Julienne
2021-03-02 11:40   ` Robin Murphy
2021-03-02 14:06     ` Nicolas Saenz Julienne [this message]
2021-02-26 14:03 ` [RFC 11/13] arm64: Mark ARCH_BCM2835 as needing broken 64bit MMIO support Nicolas Saenz Julienne
2021-02-26 14:03 ` [RFC 12/13] ARM: dts: bcm2711: Mark PCIe bus as 64bit-mmio-broken Nicolas Saenz Julienne
2021-02-26 14:03 ` [RFC 13/13] scsi: megaraid: Make use of dev_64bit_mmio_supported() Nicolas Saenz Julienne
2021-02-26 14:30   ` Arnd Bergmann
2021-02-26 18:06     ` Arnd Bergmann

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