From: Borislav Petkov <bp@alien8.de>
To: Suravee Suthikulanit <suravee.suthikulpanit@amd.com>
Cc: Borislav Petkov <bp@suse.de>,
Andreas Herrmann <herrmann.der.user@googlemail.com>,
Bjorn Helgaas <bhelgaas@google.com>,
Robert Richter <rric@kernel.org>,
Myron Stowe <myron.stowe@gmail.com>,
Myron Stowe <myron.stowe@redhat.com>,
Aravind Gopalakrishnan <aravind.gopalakrishnan@amd.com>,
linux-pci <linux-pci@vger.kernel.org>,
kim.naru@amd.com, Daniel J Blueman <daniel@numascale.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
x86 <x86@kernel.org>, Steffen Persvold <sp@numascale.com>,
"linux-acpi@vger.kernel.org" <linux-acpi@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
Jan Beulich <JBeulich@suse.com>, Yinghai Lu <yinghai@kernel.org>
Subject: Re: [PATCH v2 2/5] x86/PCI: Support additional MMIO range capabilities
Date: Tue, 29 Apr 2014 21:14:54 +0200 [thread overview]
Message-ID: <20140429191454.GB4726@pd.tnic> (raw)
In-Reply-To: <535FC269.2000808@amd.com>
On Tue, Apr 29, 2014 at 10:16:57AM -0500, Suravee Suthikulanit wrote:
> In the new code, the IO ECS was needed to retrieve the
> AMD_NB_F1_MMIO_BASE_LIMIT_HI_REG (offset 0x180) during the early
> initialization as part of (2) logic. However, this register exists only on
> the newer systems. However, as you mentioned, for (2) we can assume that
> the MCFG exists for most of the systems (family10h and later), and should be
> used instead.
>
> The main purpose of this patch set is mainly to deal with the the node
> information (1). So, we might need to split these all up and handle them
> separately as needed where (2) and (3) will be used as fallback for older
> systems where MCFG does not exist.
So sounds to me like we want to get rid of the whole IO ECS deal
altogether then.
Now, I'm wondering whether we should kill it completely since I don't
think anyone cares about numa node info being correct on K8, or? I'm
specifically turning to our numascale friends who love to have a lot of
nodes. :-)
Daniel, Steffen?
--
Regards/Gruss,
Boris.
Sent from a fat crate under my desk. Formatting is fine.
--
next prev parent reply other threads:[~2014-04-29 19:14 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-05 21:06 [PATCH 0/3] amd/pci: Add AMD hostbridge supports for newer AMD systems suravee.suthikulpanit
2014-03-05 21:06 ` [PATCH 1/3] amd/pci: Add supports for generic AMD hostbridges suravee.suthikulpanit
2014-03-05 21:06 ` [PATCH 2/3] amd/pci: Support additional MMIO ranges capabilities suravee.suthikulpanit
2014-03-20 17:33 ` Bjorn Helgaas
2014-03-05 21:06 ` [PATCH 3/3] amd/pci: Miscellaneous code clean up for early_fillup_mp_bus_info suravee.suthikulpanit
2014-03-05 21:24 ` [PATCH 0/3] amd/pci: Add AMD hostbridge supports for newer AMD systems Bjorn Helgaas
2014-03-06 2:13 ` Suravee Suthikulanit
2014-03-06 6:30 ` Suravee Suthikulpanit
2014-03-06 17:40 ` Bjorn Helgaas
2014-03-06 20:03 ` Suravee Suthikulpanit
2014-03-11 18:12 ` Bjorn Helgaas
2014-03-12 21:13 ` Bjorn Helgaas
2014-03-13 1:30 ` Myron Stowe
2014-03-14 2:06 ` Suravee Suthikulpanit
2014-03-17 17:18 ` Bjorn Helgaas
2014-03-20 17:42 ` Bjorn Helgaas
2014-04-19 2:53 ` [PATCH v2 0/5] x86/PCI: Add AMD hostbridge support " Myron Stowe
2014-04-19 2:53 ` [PATCH v2 1/5] x86/PCI: Add support for generic AMD hostbridges Myron Stowe
2014-04-19 11:31 ` Borislav Petkov
2014-04-28 21:10 ` Myron Stowe
2014-04-19 2:53 ` [PATCH v2 2/5] x86/PCI: Support additional MMIO range capabilities Myron Stowe
2014-04-19 13:52 ` Borislav Petkov
2014-04-20 7:59 ` Borislav Petkov
2014-04-25 22:24 ` Myron Stowe
2014-04-26 9:10 ` Borislav Petkov
2014-04-28 20:50 ` Bjorn Helgaas
2014-04-28 21:40 ` Borislav Petkov
2014-04-29 7:33 ` Andreas Herrmann
2014-04-29 10:20 ` Borislav Petkov
2014-04-29 13:07 ` Steffen Persvold
2014-04-29 15:16 ` Suravee Suthikulanit
2014-04-29 19:14 ` Borislav Petkov [this message]
2014-04-29 21:40 ` Myron Stowe
2014-04-30 7:00 ` Robert Richter
2014-04-30 7:50 ` Suravee Suthikulpanit
2014-04-30 9:51 ` Robert Richter
2014-04-30 23:03 ` Myron Stowe
2014-04-29 11:19 ` Robert Richter
2014-04-29 7:06 ` Jan Beulich
2014-04-29 3:04 ` Suravee Suthikulanit
2014-04-28 21:19 ` Myron Stowe
2014-04-29 2:47 ` Suravee Suthikulanit
2014-04-29 17:17 ` Robert Richter
2014-04-30 6:41 ` Robert Richter
2014-04-19 2:53 ` [PATCH v2 3/5] x86/PCI: Miscellaneous code clean up for early_fillup_mp_bus_info Myron Stowe
2014-04-20 8:02 ` Borislav Petkov
2014-04-28 21:21 ` Myron Stowe
2014-04-19 2:53 ` [PATCH v2 4/5] ACPI/PCI: Warn if we have to "guess" host bridge node information Myron Stowe
2014-04-20 10:21 ` Borislav Petkov
2014-04-28 21:24 ` Myron Stowe
2014-04-29 19:16 ` Borislav Petkov
2014-04-19 2:53 ` [PATCH v2 5/5] PCI: Remove redundant 'quirk_amd_nb_node' Myron Stowe
2014-04-20 10:54 ` Borislav Petkov
2014-04-20 13:44 ` Myron Stowe
2014-04-21 16:53 ` Daniel J Blueman
2014-04-29 2:02 ` Suravee Suthikulanit
2014-04-29 19:29 ` Bjorn Helgaas
2014-04-28 21:28 ` Myron Stowe
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