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From: Marc Zyngier <maz@kernel.org>
To: Lucas Tanure <lucas.tanure@collabora.com>
Cc: Vinod Koul <vkoul@kernel.org>,
	Kishon Vijay Abraham I <kishon@kernel.org>,
	Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Heiko Stuebner <heiko@sntech.de>,
	Thomas Gleixner <tglx@linutronix.de>,
	Lorenzo Pieralisi <lpieralisi@kernel.org>,
	Krzysztof Wilczynski <kw@linux.com>,
	Bjorn Helgaas <bhelgaas@google.com>, Qu Wenruo <wqu@suse.com>,
	Piotr Oniszczuk <piotr.oniszczuk@gmail.com>,
	Peter Geis <pgwipeout@gmail.com>,
	Kever Yang <kever.yang@rock-chips.com>,
	linux-phy@lists.infradead.org, devicetree@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org,
	linux-pci@vger.kernel.org, kernel@collabora.com,
	Robin Murphy <robin.murphy@arm.com>
Subject: Re: [PATCH 1/7] irqchip/gic-v3: Add a DMA Non-Coherent flag
Date: Fri, 10 Mar 2023 08:56:28 +0000	[thread overview]
Message-ID: <a43dee4ef0e72c393dea6ce924347f81@kernel.org> (raw)
In-Reply-To: <20230310080518.78054-2-lucas.tanure@collabora.com>

On 2023-03-10 08:05, Lucas Tanure wrote:
> The GIC600 integration in RK356x, used in rk3588, doesn't support
> any of the shareability or cacheability attributes, and requires
> both values to be set to 0b00 for all the ITS and Redistributor
> tables.
> 
> This is loosely based on prior work from XiaoDong Huang and
> Peter Geis fixing this issue specifically for Rockchip 356x.

No.

If we are going to do *anything* about this thing, it is by
describing the actual topology. And it has to work for both DT
and ACPI.

Alternatively, this is an erratum.

         M.
-- 
Jazz is not dead. It just smells funny...

  reply	other threads:[~2023-03-10  9:02 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-03-10  8:05 [PATCH 0/7] Add PCIe2 support for Rockchip Boards Lucas Tanure
2023-03-10  8:05 ` [PATCH 1/7] irqchip/gic-v3: Add a DMA Non-Coherent flag Lucas Tanure
2023-03-10  8:56   ` Marc Zyngier [this message]
2023-03-10  9:53     ` Lucas Tanure
2023-03-10 10:44       ` Marc Zyngier
2023-03-10 11:41   ` Peter Geis
2023-03-10 11:56     ` Marc Zyngier
2023-03-10 12:04       ` Peter Geis
2023-03-10 12:12         ` Marc Zyngier
2023-03-10 12:04     ` Robin Murphy
2023-03-14 13:25       ` Lucas Tanure
2023-03-14 14:14         ` Marc Zyngier
2023-03-10  8:05 ` [PATCH 2/7] PCI: rockchip-dwc: Add rk3588 compatible line Lucas Tanure
2023-03-10  8:05 ` [PATCH 3/7] dt-bindings: phy: rockchip: " Lucas Tanure
2023-03-12 11:31   ` Krzysztof Kozlowski
2023-03-10  8:05 ` [PATCH 4/7] phy: rockchip: Add naneng combo phy support for RK3588 Lucas Tanure
2023-03-10 12:31   ` Peter Geis
2023-03-10  8:05 ` [PATCH 5/7] arm64: dts: rockchip: Add ITS GIC600 configuration for rk3588s Lucas Tanure
2023-03-10  8:05 ` [PATCH 6/7] arm64: dts: rockchip: Add PCIE2.0x1 lane @fe190000 for RK3588s Lucas Tanure
2023-03-10  8:05 ` [PATCH 7/7] arm64: dts: rockchip: RK3588s: Enable PCIE2.0x1 @fe190000 Lucas Tanure

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