linux-kernel - Re: [PATCH] Make CARDBUS_MEM_SIZE and CARDBUS_IO

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Message-ID: <45B4C2DA.8020906@lifl.fr>
Date:	Mon, 22 Jan 2007 14:57:46 +0100
From:	Éric Piel <Eric.Piel@...l.fr>
To:	Atsushi Nemoto <anemo@....ocn.ne.jp>
Cc:	akpm@...l.org, ralf@...ux-mips.org, linux-kernel@...r.kernel.org,
	linux-mips@...ux-mips.org
Subject: Re: [PATCH] Make CARDBUS_MEM_SIZE and CARDBUS_IO_SIZE customizable

01/19/2007 04:57 AM, Atsushi Nemoto wrote/a écrit:
> On Fri, 19 Jan 2007 12:19:10 +0900 (JST), Atsushi Nemoto <anemo@....ocn.ne.jp> wrote:
>> OK, here is a revised patch which uses pci= option instead of config
>> parameters.
> 
> Sorry, this patch would cause build failure if setup-bus.c was not
> built into kernel.  Revised again.
> 
> 
> Subject: [PATCH] Make CARDBUS_MEM_SIZE and CARDBUS_IO_SIZE customizable
> 
> CARDBUS_MEM_SIZE was increased to 64MB on 2.6.20-rc2, but larger size
> might result in allocation failure for the reserving itself on some
> platforms (for example typical 32bit MIPS).  Make it (and
> CARDBUS_IO_SIZE too) customizable by "pci=" option for such platforms.
:
> 
> diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
> index 25d2985..ace7a9a 100644
> --- a/Documentation/kernel-parameters.txt
> +++ b/Documentation/kernel-parameters.txt
> @@ -1259,6 +1259,12 @@ and is between 256 and 4096 characters. 
>  				This sorting is done to get a device
>  				order compatible with older (<= 2.4) kernels.
>  		nobfsort	Don't sort PCI devices into breadth-first order.
> +		cbiosize=nn[KMG]	A fixed amount of bus space is
> +				reserved for CardBus bridges.
> +				The default value is 256 bytes.
> +		cbmemsize=nn[KMG]	A fixed amount of bus space is
> +				reserved for CardBus bridges.
> +				The default value is 64 megabytes.
Hi, I've got the feeling that those two parameters don't do the same 
things, although they have the same description ;-) Maybe the texts 
could be:
* The fixed amount of bus space which is reserved for the CardBus 
bridges IO window.
* The fixed amount of bus space which is reserved for the CardBus 
bridges memory window.

See you,
Eric
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