From: "Krzysztof Wilczyński" <kw@linux.com>
To: Jianjun Wang <jianjun.wang@mediatek.com>
Cc: Lorenzo Pieralisi <lpieralisi@kernel.org>,
Rob Herring <robh@kernel.org>,
Bjorn Helgaas <bhelgaas@google.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com>,
Ryder Lee <ryder.lee@mediatek.com>,
linux-pci@vger.kernel.org, linux-mediatek@lists.infradead.org,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, jieyy.yang@mediatek.com,
chuanjia.liu@mediatek.com, qizhong.cheng@mediatek.com,
jian.yang@mediatek.com
Subject: Re: [PATCH v2] PCI: mediatek-gen3: Fix translation window
Date: Tue, 9 Jan 2024 13:37:21 +0900 [thread overview]
Message-ID: <20240109043721.GA3337479@rocinante> (raw)
In-Reply-To: <20231023081423.18559-1-jianjun.wang@mediatek.com>
Hello,
> The size of translation table should be a power of 2, using fls()
> cannot get the proper value when the size is not a power of 2. For
> example, fls(0x3e00000) - 1 = 25, hence the PCIe translation window
> size will be set to 0x2000000 instead of the expected size 0x3e00000.
>
> Fix translation window by splitting the MMIO space to multiple tables if
> its size is not a power of 2.
Applied to controller/mediatek, thank you!
[1/1] PCI: mediatek-gen3: Fix translation window size calculation
https://git.kernel.org/pci/pci/c/8b7b89ef507c
Krzysztof
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prev parent reply other threads:[~2024-01-09 4:37 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-23 8:14 [PATCH v2] PCI: mediatek-gen3: Fix translation window Jianjun Wang
2023-10-23 12:32 ` AngeloGioacchino Del Regno
2023-11-23 1:27 ` Jianjun Wang (王建军)
2023-12-15 6:08 ` Jianjun Wang (王建军)
2024-01-09 4:37 ` Krzysztof Wilczyński [this message]
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