Re: [PATCH 0/6] PCI: MMCONFIG clean up

From: Tomasz Nowicki
Date: Tue Feb 03 2015 - 02:42:16 EST


On 02.02.2015 21:42, Bjorn Helgaas wrote:
On Wed, Nov 19, 2014 at 05:04:45PM +0100, Tomasz Nowicki wrote:
MMCFG ACPI table has no arch dependencies so it can be used across all
architectures. Currently MMCONFIG related code resides in arch/x86 directories.
This patch set is goint to isolate non-architecure specific code and make
it accessible from drivers/pci/ directory.

Tomasz Nowicki (6):
x86, acpi, pci: Reorder logic of pci_mmconfig_insert() function
x86, acpi, pci: Move arch-agnostic MMCFG code out of arch/x86/
directory
x86, acpi, pci: Move PCI config space accessors.
x86, acpi, pci: mmconfig_{32,64}.c code refactoring - remove code
duplication.
x86, acpi, pci: mmconfig_64.c becomes default implementation for arch
agnostic low-level direct PCI config space accessors via MMCONFIG.
pci, acpi: Share ACPI PCI config space accessors.

Hi Tomasz,

I'm just checking to make sure we aren't deadlocked here, with me waiting
for you and you waiting for me. I gave you some comments about
abbreviations (MCFG/MMCFG/MMCONFIG/ECAM), weak functions, code placement
(drivers/acpi vs. drivers/pci), and the mmio_config_*() naming, so I've
been waiting to continue those discussions. But maybe you're waiting for
me, too?

I think this sort of cleanup is a great idea and I hope we can make some
progress on it. If it's easier to do it in small pieces, e.g., starting
out by moving code and renaming things with no functional changes, that
would be great with me.

Hi Bjorn,

It is not deadlock, it is rather me suffering with lack of time :)

I definitely want to make that cleanup happen and was about to start working on it again. Thanks for remanding me, patches/comments should come up soon.

Regards,
Tomasz
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