Subject: [PATCH V4 4/7] ARM64, ACPI, PCI: I/O Remapping Table (IORT) initial support.

From: [email-masked] (Sinan Kaya)
Date: Wed, 13 Apr 2016 17:18:06 -0400

On 4/13/2016 11:52 AM, Marc Zyngier wrote:
>> > Sure. Please see:
>> > http://infocenter.arm.com/help/topic/com.arm.doc.den0049a/DEN0049A_IO_Remapping_Table.pdf
>> > 3.1.1.5 PCI root complex node
>> > PCI Segment number -> The PCI segment number, as in MCFG and as
>> > returned by _SEG in the namespace.
>> > 
>> > So IORT spec states that pci_segment_number corresponds to the segment 
>> > number from MCFG table and _SEG method. Here is my patch which makes 
>> > sure pci_domain_nr(bus) is set properly:
>> > https://lkml.org/lkml/2016/2/16/418
> Lovely. So this series is actually dependent on the PCI one. I guess we
> need to solve that one first, because IORT seems pretty pointless if we
> don't have PCI support. What's the plan?

Would it be OK to split the PCI specific section of the patch and continue
review? PCI is a user of the IORT table. Not the other way around. 

We shouldn't need a two way dependency. 

-- 
Sinan Kaya
Qualcomm Technologies, Inc. on behalf of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project