linux-kernel - Re: [PATCH] x86: Reserve legacy VGA MMIO area for x86_64 as well as x86

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Date:	Fri, 9 Apr 2010 18:43:08 -0700
From:	Andy Isaacson <adi@...apodia.org>
To:	Yinghai <yinghai.lu@...cle.com>
Cc:	guenter.roeck@...csson.com, "H. Peter Anvin" <hpa@...or.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Bjorn Helgaas <bjorn.helgaas@...com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	"x86@...nel.org" <x86@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Thomas Renninger <trenn@...e.de>
Subject: Re: [PATCH] x86: Reserve legacy VGA MMIO area for x86_64 as well
	as x86_32

On Fri, Apr 09, 2010 at 06:10:49PM -0700, Yinghai wrote:
> in addition to -v2 patch
> 
> please apply this patch too
> 
> also please boot with "debug" in boot command line.
> 
> Thanks
> 
> Yinghai
> 
> [PATCH] x86,acpi: use request_resource instead of instead of insert_resource
> 
> So make pci root resouce from _CRS honor the one We reserve in e820 below 1M
> 
> Signed-off-by: Yinghai Lu <yinghai@...nel.org>
> 
> ---
>  arch/x86/pci/acpi.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> Index: linux-2.6/arch/x86/pci/acpi.c
> ===================================================================
> --- linux-2.6.orig/arch/x86/pci/acpi.c
> +++ linux-2.6/arch/x86/pci/acpi.c
> @@ -168,7 +168,7 @@ setup_resource(struct acpi_resource *acp
>  		return AE_OK;
>  	}
>  
> -	conflict = insert_resource_conflict(root, res);
> +	conflict = request_resource_conflict(root, res);
>  	if (conflict) {
>  		dev_err(&info->bridge->dev,
>  			"address space collision: host bridge window %pR "

That works.  dmesg.gz attached (I'm pretty sure I'm skating close to
vger's size limit without gz).  "debug" didn't seem to make much
difference?

-andy

Download attachment "dmesg.gz" of type "application/octet-stream" (17250 bytes)