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From: Matthew Wilcox <willy@infradead.org>
To: Ansuel Smith <ansuelsmth@gmail.com>
Cc: Russell King <linux@armlinux.org.uk>,
	Jonathan Corbet <corbet@lwn.net>,
	Ard Biesheuvel <ardb@kernel.org>,
	Linus Walleij <linus.walleij@linaro.org>,
	Florian Fainelli <f.fainelli@gmail.com>,
	Abbott Liu <liuwenliang@huawei.com>,
	Luis Chamberlain <mcgrof@kernel.org>,
	Palmer Dabbelt <palmerdabbelt@google.com>,
	linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] arm: Enlarge IO_SPACE_LIMIT needed for some SoC
Date: Tue, 11 May 2021 03:24:29 +0100	[thread overview]
Message-ID: <YJnq3Y3/I1kdV1Ov@casper.infradead.org> (raw)
In-Reply-To: <20210511021656.17719-1-ansuelsmth@gmail.com>

On Tue, May 11, 2021 at 04:16:54AM +0200, Ansuel Smith wrote:
> Ipq8064 SoC requires larger IO_SPACE_LIMIT on second and third pci port.

Do you really?  I mean, yes, theoretically, I understand it, the
hardware supports 64kB of I/O port space per root port.  But I/O
port space is rather deprecated these days.  My laptop has precisely
two devices with I/O ports, one with 64 bytes and the other with 32
bytes.  Would you really suffer by allocating 16kB of I/O port
space to each root port?

  reply	other threads:[~2021-05-11  2:25 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-11  2:16 [PATCH] arm: Enlarge IO_SPACE_LIMIT needed for some SoC Ansuel Smith
2021-05-11  2:24 ` Matthew Wilcox [this message]
2021-05-11  2:32   ` Ansuel Smith
2021-05-11  4:26     ` Ard Biesheuvel
2021-05-11 12:15       ` Ansuel Smith
2021-05-11 12:30         ` Ard Biesheuvel
2021-05-11 12:37           ` Ansuel Smith
2021-05-11 12:46             ` Ard Biesheuvel
2021-05-11 12:51               ` Ansuel Smith
2021-05-11 14:55                 ` Russell King - ARM Linux admin
2021-05-11 14:54         ` Russell King - ARM Linux admin
2021-05-17 10:26       ` Linus Walleij

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