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authorMuli Ben-Yehuda <muli@il.ibm.com>2007-08-10 13:01:19 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-08-11 15:47:42 -0700
commit73c59afc65cfa50c3362b9ce1ec151a79c41dd8e (patch)
treeaef70231e894fcbd28d94a29e306c2856dbc9e3a /include/asm-x86_64
parentf0b85c0cfdad8977d82fed88e846fc2245585d0e (diff)
downloadlinux-73c59afc65cfa50c3362b9ce1ec151a79c41dd8e.tar.gz
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-x86_64')
-rw-r--r--include/asm-x86_64/pci.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/asm-x86_64/pci.h b/include/asm-x86_64/pci.h
index 88926eb44f5..5da8cb0c059 100644
--- a/include/asm-x86_64/pci.h
+++ b/include/asm-x86_64/pci.h
@@ -10,6 +10,8 @@ struct pci_sysdata {
void* iommu; /* IOMMU private data */
};
+extern struct pci_bus *pci_scan_bus_with_sysdata(int busno);
+
#ifdef CONFIG_CALGARY_IOMMU
static inline void* pci_iommu(struct pci_bus *bus)
{