cvs commit: src/sys/dev/pci pci.c pci_pci.c pci_private.h src/sys/dev/acpica acpi_pci.c acpi_pcib_acpi.c

M. Warner Losh imp at
Fri Apr 9 09:34:13 PDT 2004

In message: <4076CE28.1020705 at>
            Scott Long <scottl at> writes:
: Warner Losh wrote:
: > imp         2004/04/09 08:44:34 PDT
: > 
: >   FreeBSD src repository
: > 
: >   Modified files:
: >     sys/dev/pci          pci.c pci_pci.c pci_private.h 
: >     sys/dev/acpica       acpi_pci.c acpi_pcib_acpi.c 
: >   Log:
: >   Omnibus PCI commit:
: >           o Save and restore bars for suspend/resume as well as for D3->D0
: >             transitions.
: >           o preallocate resources that the PCI devices use to avoid resource
: >             conflicts
: >           o lazy allocation of resources not allocated by the BIOS.
: >           o set unattached drivers to state D3.  Set power state to D0
: >             before probe/attach.  Right now there's two special cases
: >             for this (display and memory devices) that need work in other
: >             areas of the tree.
: >   
: >   Please report any bugs to me.
: >   
: I'm really really uncomfortable with the part of this that does the 
: power state changes.  It's going to require a _lot_ of testing with as
: much hardware as we all can get our hands on.  It will be an interesting
: experiment =-)

Yes.  I agree witht he power state changes being risky.  That's why
I'm committing them now rather than in 4 months so that we can get
some milage on -current with it.  If it is really bad, we can back off
that part of the change, or refine it to overcome the problems.


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