On 01/15/15 10:51, John Baldwin wrote:
On 1/15/15 11:20 AM, Nathan Whitehorn wrote:
On 01/14/15 16:07, Warner Losh wrote:
On Jan 14, 2015, at 8:32 AM, Justin Hibbits <chmeeed...@gmail.com>
wrote:
On Wed, 14 Jan 2015 09:23:05 -0500
John Baldwin <j...@freebsd.org> wrote:
On 1/14/15 12:41 AM, Warner Losh wrote:
Author: imp
Date: Wed Jan 14 05:41:31 2015
New Revision: 277163
URL: https://svnweb.freebsd.org/changeset/base/277163
Log:
Add a rather obnoxious warning if you don't have NEW_PCIB defined
since it's a total crap shoot if things will work.
Should we just make it a #error instead? (Some day I hope to have
NEW_PCIB enabled by default and remove the old code. Will take a
while to get there for the generic PCI code, but cardbus is probably
only used on x86 so that would be fine.)
Also powerpc, but NEW_PCIB is default there as well.
PowerPC doesn’t seem to defined the bus number resources.
Warner
Which ones?
-Nathan
PCI_RES_BUS.
https://svnweb.freebsd.org/base?view=revision&revision=261790
I misspoke about it being in the nexus. On x86 it is done in the ACPI
Host-PCI bridge drivers (since those have a _SEG method to know which
PCI domain/segment/hose the child bus belongs to). You could
conceivably do it higher up at whatever level understands which PCI
domain a given Host-PCI bridge lives in.
If you only ever support a single PCI domain, you could just place it in
the nexus with a hardcoded domain arg of 0 to the pci_domain_*() functions.
Most PPC systems have at least two and usually more PCI domains. I'll
take a look at adding this.
-Nathan
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