diff options
author | Muli Ben-Yehuda <muli@il.ibm.com> | 2007-08-10 16:01:19 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-08-11 18:47:42 -0400 |
commit | 73c59afc65cfa50c3362b9ce1ec151a79c41dd8e (patch) | |
tree | aef70231e894fcbd28d94a29e306c2856dbc9e3a /include/asm-i386 | |
parent | f0b85c0cfdad8977d82fed88e846fc2245585d0e (diff) |
finish i386 and x86-64 sysdata conversion
This patch finishes the i386 and x86-64 ->sysdata conversion and hopefully
also fixes Riku's and Andy's observed bugs. It is based on Yinghai Lu's
and Andy Whitcroft's patches (thanks!) with some changes:
- introduce pci_scan_bus_with_sysdata() and use it instead of
pci_scan_bus() where appropriate. pci_scan_bus_with_sysdata() will
allocate the sysdata structure and then call pci_scan_bus().
- always allocate pci_sysdata dynamically. The whole point of this
sysdata work is to make it easy to do root-bus specific things
(e.g., support PCI domains and IOMMU's). I dislike using a default
struct pci_sysdata in some places and a dynamically allocated
pci_sysdata elsewhere - the potential for someone indavertantly
changing the default structure is too high.
- this patch only makes the minimal changes necessary, i.e., the NUMA node is
always initialized to -1. Patches to do the right thing with regards
to the NUMA node can build on top of this (either add a 'node'
parameter to pci_scan_bus_with_sysdata() or just update the node
when it becomes known).
The patch was compile tested with various configurations (e.g., NUMAQ,
VISWS) and run-time tested on i386 and x86-64. Unfortunately none of my
machines exhibited the bugs so caveat emptor.
Andy, could you please see if this fixes the NUMA issues you've seen?
Riku, does this fix "pci=noacpi" on your laptop?
Signed-off-by: Muli Ben-Yehuda <muli@il.ibm.com>
Cc: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Chuck Ebbert <cebbert@redhat.com>
Cc: <riku.seppala@kymp.net>
Cc: Andy Whitcroft <apw@shadowen.org>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-i386')
-rw-r--r-- | include/asm-i386/pci.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/asm-i386/pci.h b/include/asm-i386/pci.h index d790343e9982..4fcacc711385 100644 --- a/include/asm-i386/pci.h +++ b/include/asm-i386/pci.h | |||
@@ -8,6 +8,9 @@ struct pci_sysdata { | |||
8 | int node; /* NUMA node */ | 8 | int node; /* NUMA node */ |
9 | }; | 9 | }; |
10 | 10 | ||
11 | /* scan a bus after allocating a pci_sysdata for it */ | ||
12 | extern struct pci_bus *pci_scan_bus_with_sysdata(int busno); | ||
13 | |||
11 | #include <linux/mm.h> /* for struct page */ | 14 | #include <linux/mm.h> /* for struct page */ |
12 | 15 | ||
13 | /* Can be used to override the logic in pci_scan_bus for skipping | 16 | /* Can be used to override the logic in pci_scan_bus for skipping |