From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: linux-pci@vger.kernel.org
Cc: Bjorn Helgaas <bhelgaas@google.com>,
Gavin Shan <shangw@linux.vnet.ibm.com>,
Yinghai Lu <yinghai@kernel.org>
Subject: Re: Resource assignment oddities
Date: Sun, 05 May 2013 10:15:32 +1000 [thread overview]
Message-ID: <1367712932.11982.20.camel@pasglop> (raw)
In-Reply-To: <1367712653.11982.19.camel@pasglop>
On Sun, 2013-05-05 at 10:10 +1000, Benjamin Herrenschmidt wrote:
> Once upon a time, our PCI resource assignment code use to be reasonably
> straightforward... right now I'm having a hard time making any sense
> of it.
Note that the devices so far seem to be working and here's the resulting
layout:
/ # cat /proc/iomem
00000000-7ffffffff : System RAM
3d00080000000-3d000fffeffff : /pciex@3fffe40000000
3d00080000000-3d000807fffff : PCI Bus 0000:01
3d00080000000-3d0008003ffff : 0000:01:00.0
3d00080000000-3d0008003ffff : ipr
3d00080800000-3d00081ffffff : PCI Bus 0000:01
3d00080800000-3d0008081ffff : 0000:01:00.0
3d00081000000-3d00081ffffff : 0000:01:00.0
3d00081000000-3d00081ffffff : ipr
3d01080000000-3d010fffeffff : /pciex@3fffe40100000
3d01080000000-3d010817fffff : PCI Bus 0001:01
3d01080000000-3d010817fffff : PCI Bus 0001:02
3d01080000000-3d010807fffff : PCI Bus 0001:08
3d01080000000-3d0108001ffff : 0001:08:00.0
3d01080800000-3d01080ffffff : PCI Bus 0001:09
3d01081000000-3d010817fffff : PCI Bus 0001:03
3d01081800000-3d010837fffff : PCI Bus 0001:01
3d01081800000-3d01081ffffff : PCI Bus 0001:02
3d01081800000-3d01081ffffff : PCI Bus 0001:08
3d01081800000-3d0108180ffff : 0001:08:00.0
3d01081800000-3d0108180ffff : ipr
3d01081810000-3d0108181ffff : 0001:08:00.0
3d01081810000-3d0108181ffff : ipr
3d01082000000-3d0108203ffff : 0001:01:00.0
3d04080000000-3d040fffeffff : /pciex@3fffe40400000
3d05080000000-3d050fffeffff : /pciex@3fffe40500000
3d05081800000-3d050847fffff : PCI Bus 0003:01
3d05081800000-3d05081ffffff : PCI Bus 0003:02
3d05081800000-3d05081ffffff : PCI Bus 0003:03
3d05081800000-3d0508180ffff : 0003:03:00.0
3d05081810000-3d05081811fff : 0003:03:00.0
3d05082000000-3d0508203ffff : 0003:01:00.0
3d05084800000-3d050867fffff : PCI Bus 0003:01
3d05084800000-3d050867fffff : PCI Bus 0003:02
3d05084800000-3d05084ffffff : PCI Bus 0003:09
3d05084800000-3d0508487ffff : 0003:09:00.0
3d05084880000-3d050848fffff : 0003:09:00.1
3d05084900000-3d0508497ffff : 0003:09:00.2
3d05084980000-3d050849fffff : 0003:09:00.3
3d05084a00000-3d05084a0ffff : 0003:09:00.0
3d05084a00000-3d05084a0ffff : tg3
3d05084a10000-3d05084a1ffff : 0003:09:00.0
3d05084a10000-3d05084a1ffff : tg3
3d05084a20000-3d05084a2ffff : 0003:09:00.0
3d05084a20000-3d05084a2ffff : tg3
3d05084a30000-3d05084a3ffff : 0003:09:00.1
3d05084a30000-3d05084a3ffff : tg3
3d05084a40000-3d05084a4ffff : 0003:09:00.1
3d05084a40000-3d05084a4ffff : tg3
3d05084a50000-3d05084a5ffff : 0003:09:00.1
3d05084a50000-3d05084a5ffff : tg3
3d05084a60000-3d05084a6ffff : 0003:09:00.2
3d05084a60000-3d05084a6ffff : tg3
3d05084a70000-3d05084a7ffff : 0003:09:00.2
3d05084a70000-3d05084a7ffff : tg3
3d05084a80000-3d05084a8ffff : 0003:09:00.2
3d05084a80000-3d05084a8ffff : tg3
3d05084a90000-3d05084a9ffff : 0003:09:00.3
3d05084a90000-3d05084a9ffff : tg3
3d05084aa0000-3d05084aaffff : 0003:09:00.3
3d05084aa0000-3d05084aaffff : tg3
3d05084ab0000-3d05084abffff : 0003:09:00.3
3d05084ab0000-3d05084abffff : tg3
3d05085000000-3d050857fffff : PCI Bus 0003:0f
3d05085800000-3d05085ffffff : PCI Bus 0003:0a
3d05086000000-3d050867fffff : PCI Bus 0003:04
Cheers,
Ben.
next prev parent reply other threads:[~2013-05-05 0:17 UTC|newest]
Thread overview: 76+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-05 0:10 Resource assignment oddities Benjamin Herrenschmidt
2013-05-05 0:15 ` Benjamin Herrenschmidt [this message]
2013-05-05 5:18 ` Yinghai Lu
2013-05-05 5:34 ` Benjamin Herrenschmidt
2013-05-05 7:09 ` Yinghai Lu
2013-05-05 7:52 ` Benjamin Herrenschmidt
[not found] ` <51871088.4594420a.0ccc.7300SMTPIN_ADDED_BROKEN@mx.google.com>
2013-05-06 3:04 ` Yinghai Lu
[not found] ` <20130506103159.GA16927@shangw.(null)>
2013-05-06 10:48 ` Benjamin Herrenschmidt
2013-05-06 19:56 ` Yinghai Lu
[not found] ` <5188b791.a110420a.0bea.077eSMTPIN_ADDED_BROKEN@mx.google.com>
2013-05-07 22:21 ` Yinghai Lu
[not found] ` <5189c22b.45f7440a.0a88.6b75SMTPIN_ADDED_BROKEN@mx.google.com>
2013-05-08 3:42 ` Yinghai Lu
2013-05-17 5:36 ` Benjamin Herrenschmidt
2013-05-21 17:28 ` Bjorn Helgaas
2013-05-21 17:39 ` Yinghai Lu
2013-05-21 22:01 ` Benjamin Herrenschmidt
2013-05-06 23:15 ` [PATCH 1/2] PCI: Split pci_assign_unassigned_resources to per root bus Yinghai Lu
2013-05-06 23:15 ` [PATCH 2/2] PCI: Skip IORESOURCE_IO size and allocation for root bus without ioport range Yinghai Lu
2013-05-07 0:50 ` [PATCH 1/2] PCI: Split pci_assign_unassigned_resources to per root bus Benjamin Herrenschmidt
[not found] ` <51885a04.c181440a.37c9.ffffa88eSMTPIN_ADDED_BROKEN@mx.google.com>
2013-05-07 7:34 ` Yinghai Lu
2013-05-21 20:41 ` Bjorn Helgaas
2013-05-07 22:17 ` [PATCH v3 0/5] PCI: Skip resource allocation for root bus without conresponding type resource Yinghai Lu
2013-05-07 22:17 ` [PATCH v3 1/5] PCI: Split pci_assign_unassigned_resources to per root bus Yinghai Lu
2013-05-07 22:17 ` [PATCH v3 2/5] PCI: Skip IORESOURCE_IO allocation for root bus without ioport range Yinghai Lu
2013-05-07 22:17 ` [PATCH v3 3/5] PCI: Skip IORESOURCE_MMIO allocation for root bus without MMIO range Yinghai Lu
2013-05-07 22:28 ` Benjamin Herrenschmidt
2013-05-07 22:44 ` Yinghai Lu
2013-05-08 1:16 ` Benjamin Herrenschmidt
2013-05-08 3:57 ` Yinghai Lu
2013-05-07 22:17 ` [PATCH v3 4/5] PCI: Enable pci bridge when it is needed Yinghai Lu
2013-05-07 22:17 ` [PATCH v3 5/5] PCI: Retry assign unassigned resources for hotadd root bus Yinghai Lu
2013-05-22 6:38 ` [PATCH v4 0/8] PCI: Skip resource allocation for root bus without conresponding type resource Yinghai Lu
2013-05-22 6:38 ` [PATCH v4 1/8] PCI: Don't use temp bus for pci_bus_release_bridge_resources Yinghai Lu
2013-05-22 6:38 ` [PATCH v4 2/8] PCI: Use pci_walk_bus to detect unassigned resources Yinghai Lu
2013-05-22 6:38 ` [PATCH v4 3/8] PCI: Introduce enable_local to prepare per root bus handling Yinghai Lu
2013-05-22 6:38 ` [PATCH v4 4/8] PCI: Split pci_assign_unassigned_resources to per root bus Yinghai Lu
2013-05-22 6:38 ` [PATCH v4 5/8] PCI: Skip IORESOURCE_IO allocation for root bus without ioport range Yinghai Lu
2013-05-22 6:38 ` [PATCH v4 6/8] PCI: Skip IORESOURCE_MMIO allocation for root bus without MMIO range Yinghai Lu
2013-05-22 6:38 ` [PATCH v4 7/8] PCI: Enable pci bridge when it is needed Yinghai Lu
2013-05-22 6:38 ` [PATCH v4 8/8] PCI: Retry assign unassigned resources for hotadd root bus Yinghai Lu
2013-06-01 6:03 ` [PATCH v5 0/7] PCI: Change assign unassigned resources per root bus bassis Yinghai Lu
2013-06-01 6:03 ` [PATCH v5 2/7] PCI: Don't use temp bus for pci_bus_release_bridge_resources Yinghai Lu
2013-06-01 6:03 ` [PATCH v5 3/7] PCI: Use pci_walk_bus to detect unassigned resources Yinghai Lu
2013-06-25 21:15 ` Bjorn Helgaas
2013-06-25 21:38 ` Benjamin Herrenschmidt
2013-06-25 21:46 ` Bjorn Helgaas
2013-06-26 8:07 ` Yinghai Lu
2013-06-26 7:38 ` Yinghai Lu
2013-06-01 6:03 ` [PATCH v5 4/7] PCI: Introduce enable_local to prepare per root bus handling Yinghai Lu
2013-06-01 6:03 ` [PATCH v5 5/7] PCI: Split pci_assign_unassigned_resources to per root bus Yinghai Lu
2013-06-01 6:03 ` [PATCH v5 6/7] PCI: Enable pci bridge when it is needed Yinghai Lu
2013-06-01 6:03 ` [PATCH v5 7/7] PCI: Retry assign unassigned resources for hotadd root bus Yinghai Lu
2013-06-01 6:03 ` [PATCH v5 1/7] PCI: Don't let mmio fallback to must-only, if ioport fails with must+optional Yinghai Lu
2013-06-22 3:00 ` [PATCH v5 0/7] PCI: Change assign unassigned resources per root bus bassis Yinghai Lu
[not found] ` <518786a7.64bbec0a.58a0.1f6bSMTPIN_ADDED_BROKEN@mx.google.com>
2013-05-22 14:54 ` Resource assignment oddities Bjorn Helgaas
2013-05-22 16:59 ` Yinghai Lu
2013-05-22 17:21 ` Bjorn Helgaas
2013-05-22 20:44 ` Benjamin Herrenschmidt
2013-05-22 21:01 ` Yinghai Lu
2013-05-22 20:43 ` Benjamin Herrenschmidt
2013-05-22 21:00 ` Yinghai Lu
2013-05-22 21:13 ` Benjamin Herrenschmidt
2013-05-22 20:50 ` Yinghai Lu
[not found] ` <519dcfbe.89e9420a.4934.488bSMTPIN_ADDED_BROKEN@mx.google.com>
2013-05-23 17:08 ` Yinghai Lu
2013-05-23 17:12 ` Bjorn Helgaas
2013-05-23 17:17 ` Yinghai Lu
2013-05-23 19:47 ` Bjorn Helgaas
2013-05-23 21:00 ` Yinghai Lu
2013-05-23 21:23 ` Benjamin Herrenschmidt
2013-05-23 22:16 ` Yinghai Lu
2013-05-24 15:59 ` Bjorn Helgaas
2013-05-24 16:33 ` Benjamin Herrenschmidt
2013-05-24 16:34 ` Yinghai Lu
2013-05-23 17:11 ` [PATCH] PCI: Don't let mmio fallback to must-only, if ioport fails with must+optional Yinghai Lu
2013-05-24 17:25 ` Bjorn Helgaas
2013-05-24 23:31 ` [PATCH v3] " Yinghai Lu
2013-05-24 23:34 ` [PATCH] " Yinghai Lu
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