linux-kernel - Re: [PING^2][PATCH] RISC-V: PCI: Avoid handing out address 0 to devices

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Message-ID: <mhng-a0733eea-8220-4bf6-b1da-9de3139dbae3@palmer-ri-x1c9>
Date:   Wed, 22 Jun 2022 10:43:55 -0700 (PDT)
From:   Palmer Dabbelt <palmer@...belt.com>
To:     macro@...am.me.uk
CC:     Paul Walmsley <paul.walmsley@...ive.com>, aou@...s.berkeley.edu,
        bhelgaas@...gle.com, linux-riscv@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject:     Re: [PING^2][PATCH] RISC-V: PCI: Avoid handing out address 0 to devices

On Wed, 22 Jun 2022 04:04:09 PDT (-0700), macro@...am.me.uk wrote:
> On Wed, 27 Apr 2022, Maciej W. Rozycki wrote:
>
>> Therefore avoid handing out address 0, by bumping the lowest address
>> available to PCI via PCIBIOS_MIN_IO and PCIBIOS_MIN_MEM up by 4 and 16
>> respectively, which is the minimum allocation size for I/O and memory
>> BARs.
>
>  Ping for:
> <https://lore.kernel.org/lkml/alpine.DEB.2.21.2204271207590.9383@angie.orcam.me.uk/>

Sorry, I got this mixed up with the non-RISC-V patch.  David poked me 
about it, this is on for-next.  It's passing my tests, but they're just 
QEMU so probably not all that exciting here.