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Subject: Re: [PATCH 02/13] PCI: rcar: Convert to MSI domains
To:     Marc Zyngier <maz@kernel.org>,
        Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
        Bjorn Helgaas <bhelgaas@google.com>
Cc:     Frank Wunderlich <frank-w@public-files.de>,
        Thierry Reding <treding@nvidia.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Rob Herring <robh@kernel.org>, Will Deacon <will@kernel.org>,
        "K. Y. Srinivasan" <kys@microsoft.com>,
        Haiyang Zhang <haiyangz@microsoft.com>,
        Stephen Hemminger <sthemmin@microsoft.com>,
        Wei Liu <wei.liu@kernel.org>,
        Thierry Reding <thierry.reding@gmail.com>,
        Jonathan Hunter <jonathanh@nvidia.com>,
        Ryder Lee <ryder.lee@mediatek.com>,
        Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>,
        Michal Simek <michal.simek@xilinx.com>,
        Paul Walmsley <paul.walmsley@sifive.com>,
        linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, linux-hyperv@vger.kernel.org,
        linux-tegra@vger.kernel.org, linux-mediatek@lists.infradead.org,
        linux-renesas-soc@vger.kernel.org
References: <20210225151023.3642391-1-maz@kernel.org>
 <20210225151023.3642391-3-maz@kernel.org>
From:   Marek Vasut <marek.vasut@gmail.com>
Message-ID: <91e327df-49de-e0b5-34bc-eae8b62e88ee@gmail.com>
Date:   Sun, 28 Feb 2021 19:48:06 +0100
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On 2/25/21 4:10 PM, Marc Zyngier wrote:
> In anticipation of the removal of the msi_controller structure, convert
> the Rcar host controller driver to MSI domains.
> 
> We end-up with the usual two domain structure, the top one being a
> generic PCI/MSI domain, the bottom one being Rcar-specific and handling
> the actual HW interrupt allocation.
> 
> Also take the opportunity to get rid of the cargo-culted memory allocation
> for the MSI capture address. *ANY* sufficiently aligned address should
> be good enough, so use the physical address of the msi structure instead.

On R8A7795 with Intel 600p NVMe SSD and IWLwifi 6235 card,
Tested-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Thanks.