linux-kernel - Re: [PATCH V3 1/3] x86/PCI: Fix PCI root numa

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Message-ID: <536B973B.2000207@amd.com>
Date:	Thu, 8 May 2014 09:39:55 -0500
From:	Suravee Suthikulanit <suravee.suthikulpanit@....com>
To:	Robert Richter <rric@...nel.org>
CC:	<bhelgaas@...gle.com>, <linux-pci@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>,
	Aravind Gopalakrishnan <Aravind.Gopalakrishnan@....com>,
	Borislav Petkov <bp@...e.de>,
	"Daniel J Blueman" <daniel@...ascale.com>,
	Andreas Herrmann <herrmann.der.user@...glemail.com>,
	Myron Stowe <myron.stowe@...hat.com>
Subject: Re: [PATCH V3 1/3] x86/PCI: Fix PCI root numa_node info on AMD family15h

On 5/8/2014 4:01 AM, Robert Richter wrote:
> On 08.05.14 10:59:05, Robert Richter wrote:
>> On 07.05.14 13:58:45, suravee.suthikulpanit@....com wrote:
>>> @@ -113,10 +122,17 @@ static int __init early_fill_mp_bus_info(void)
>>>   		info = alloc_pci_root_info(min_bus, max_bus, node, link);
>>>   	}
>>>
>>> +	/*
>>> +	 * The following code is only supported until Fam11h.
>>> +	 * Newer processors will depend on ACPI MCFG table instead.
>>> +	 */
>>> +	if (boot_cpu_data.x86 > 0x11)
>>> +		return 0;
>>> +
>>>   	/* get the default node and link for left over res */
>>
>> As this is the only substantial change of your patch, I would better
>> drop ther rest or at least split it in two patches. Should this change
>> also be for stable?
>
> Of course adding the hostbridge must be also part of the patch, didn't
> note this due to the other noise. See why the split would be good?
>
>>
>> -Robert


Robert,

I have already added the hostbridge for family15h in this patch.

+static struct amd_hostbridge hb_probes[] __initdata = {
+	{ 0, 0x18, 0x1100 }, /* K8 */
+	{ 0, 0x18, 0x1200 }, /* Family10h */
+	{ 0xff, 0, 0x1200 }, /* Family10h */
+	{ 0, 0x18, 0x1300 }, /* Family11h */
+	{ 0, 0x18, 0x1600 }, /* Family15h */ <--- HERE
  };

The rest of the changes are mostly comments, some minor renaming of 
variables for clarity, and replace hardcode values with preprocessor 
macro.  If needed, I can split them.

Suravee
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