linux-kernel - Re: [PATCH] PCI: Use minimum window alignment when calculating memory window size

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Message-ID: <20190919064540.GC28281@lahna.fi.intel.com>
Date:   Thu, 19 Sep 2019 09:45:40 +0300
From:   Mika Westerberg <mika.westerberg@...ux.intel.com>
To:     Bjorn Helgaas <bhelgaas@...gle.com>
Cc:     Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Nicholas Johnson <nicholas.johnson-opensource@...look.com.au>,
        linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] PCI: Use minimum window alignment when calculating
 memory window size

On Mon, Aug 12, 2019 at 05:41:44PM +0300, Mika Westerberg wrote:
> There is an issue in Linux PCI resource allocation that if we remove an
> existing device that was initially configured by the BIOS and then issue
> rescan, it will not fit in to the memory space allocated by the BIOS
> even if it originally it fit there just fine.

Any comments on this?