linux-kernel - Re: [PATCH v4 28/28] PCI, x86, ACPI: get ioapic address from acpi device

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Message-ID: <CAE9FiQWnGaa6omcLW0zxLj+UMspRGxjVoYXUsH3ndydGD51T9w@mail.gmail.com>
Date:	Fri, 23 Aug 2013 11:38:44 -0700
From:	Yinghai Lu <yinghai@...nel.org>
To:	Lan Tianyu <lantianyu1986@...il.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Bjorn Helgaas <bhelgaas@...gle.com>
Cc:	rui wang <ruiv.wang@...il.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...e.hu>, "H. Peter Anvin" <hpa@...or.com>,
	Tony Luck <tony.luck@...el.com>,
	Linux PCI <linux-pci@...r.kernel.org>,
	"linux-kernel@...r kernel org" <linux-kernel@...r.kernel.org>,
	"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>
Subject: Re: [PATCH v4 28/28] PCI, x86, ACPI: get ioapic address from acpi device

On Fri, Aug 23, 2013 at 8:34 AM, Lan Tianyu <lantianyu1986@...il.com> wrote:
>> I worked around the problem by replacing acpi_resource_to_address64()
>> with resource_to_addr().  But resource_to_addr() is a static function
>> in arch/x86/pci/acpi.c, not very convenient to use. Here's what I did:
>>
>
> Hi Rui&Yinghai:
>            How about using the following code to translate struct
>  acpi_resource to struct resouce in this setup_res()?
>
>          if (acpi_dev_resource_address_space(...)
>                 || acpi_dev_resource_memory(..))
>               return AE_OK;

Yest, that could be better, will update that.

Also can you submit patch that will use that in res_to_addr of
arch/x86/pci/acpi.c?

Thanks

Yinghai
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