linux-kernel - Re: Initializing iwl3945 error

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Date:	Fri, 6 Jul 2012 14:34:42 -0700
From:	Yinghai Lu <yinghai@...nel.org>
To:	Bjorn Helgaas <bhelgaas@...gle.com>
Cc:	Kamil Grzebien <ciptok@...il.com>,
	Stanislaw Gruszka <sgruszka@...hat.com>,
	linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-wireless@...r.kernel.org
Subject: Re: Initializing iwl3945 error

On Fri, Jul 6, 2012 at 1:38 PM, Bjorn Helgaas <bhelgaas@...gle.com> wrote:
>  pci 0000:0b:00.0: reg 10: [mem 0xf1eff000-0xf1efffff]
> -pci 0000:00:1c.1: BAR 15: assigned [mem 0xf0200000-0xf03fffff 64bit pref]
> +pci 0000:00:1c.1: bridge window [io  0x1000-0x0fff] to [bus 0b-0b]
> add_size 1000
> +pci 0000:00:1c.1: bridge window [mem 0x00100000-0x000fffff 64bit pref] to [bus
> 0b-0b] add_size 200000
> +pci 0000:00:1c.1: res[15]=[mem 0x00100000-0x000fffff 64bit pref]
> get_res_add_size add_size 200000
> +pci 0000:00:1c.1: res[13]=[io  0x1000-0x0fff] get_res_add_size add_size 1000
> +pci 0000:00:1c.1: BAR 15: assigned [mem 0xf0400000-0xf05fffff 64bit pref]
>  pci_bus 0000:0b: resource 1 [mem 0xf1e00000-0xf1efffff]
> -pci_bus 0000:0b: resource 2 [mem 0xf0200000-0xf03fffff 64bit pref]
> +pci_bus 0000:0b: resource 2 [mem 0xf0400000-0xf05fffff 64bit pref]

Those wild print out about add_size is used to double check if the
option size is passed correctly.

diff between 3.3 and 3.4:
in kernel 3.4, 1c.0 pref mem64 get allocated before 1c.1 pref mem64.
that should be caused by: We replaced local version resource list with
generic list.

But that should not be reason for why 3.3 does not work on Kamil's setup.

I would suspect that pci pm change fixes the problem.

Thanks

Yinghai
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