Date: Fri, 09 Apr 2004 10:34:49 -0600 (MDT) From: "M. Warner Losh" <imp@bsdimp.com> To: scottl@freebsd.org Cc: cvs-all@freebsd.org Subject: Re: 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 Message-ID: <20040409.103449.122315793.imp@bsdimp.com> In-Reply-To: <4076CE28.1020705@freebsd.org> References: <200404091544.i39FiYDY061986@repoman.freebsd.org> <4076CE28.1020705@freebsd.org>
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In message: <4076CE28.1020705@freebsd.org>
Scott Long <scottl@freebsd.org> 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.
Warner
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