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Re: PCI PM: Restore standard config registers of all devices early

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From: Linus Torvalds
Subject: Re: PCI PM: Restore standard config registers of all devices early
Date: Monday, February 2, 2009 - 5:28 pm

On Tue, 3 Feb 2009, Rafael J. Wysocki wrote:

Hmm. atyfb_base.c has the same kind of things with magic PMAC code, but it 
doesn't follow the USB pattern - it just replaces "pci_set_power_state()" 
_entirely_. 

It seems a very interesting suspend routine, btw. It doesn't seem to do 
any of the pci_save_state() at all, just re-initializes from scratch. 
Maybe it is unhappy with the PM layer deciding to try to restore state 
since it clearly didn't..

		Linus
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Re: PCI PM: Restore standard config registers of all devic ..., Benjamin Herrenschmidt, (Mon Feb 2, 2:54 am)
Re: PCI PM: Restore standard config registers of all devic ..., Linus Torvalds, (Mon Feb 2, 10:06 am)
Re: PCI PM: Restore standard config registers of all devic ..., Rafael J. Wysocki, (Mon Feb 2, 10:20 am)
Re: PCI PM: Restore standard config registers of all devic ..., Benjamin Herrenschmidt, (Mon Feb 2, 1:29 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Benjamin Herrenschmidt, (Mon Feb 2, 1:33 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Linus Torvalds, (Mon Feb 2, 1:41 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Linus Torvalds, (Mon Feb 2, 1:50 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Linus Torvalds, (Mon Feb 2, 1:55 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Benjamin Herrenschmidt, (Mon Feb 2, 2:00 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Benjamin Herrenschmidt, (Mon Feb 2, 2:07 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Benjamin Herrenschmidt, (Mon Feb 2, 2:19 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Rafael J. Wysocki, (Mon Feb 2, 2:32 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Rafael J. Wysocki, (Mon Feb 2, 2:39 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Rafael J. Wysocki, (Mon Feb 2, 2:49 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Linus Torvalds, (Mon Feb 2, 3:05 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Linus Torvalds, (Mon Feb 2, 3:09 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Linus Torvalds, (Mon Feb 2, 3:15 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Benjamin Herrenschmidt, (Mon Feb 2, 3:28 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Rafael J. Wysocki, (Mon Feb 2, 3:31 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Rafael J. Wysocki, (Mon Feb 2, 3:33 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Benjamin Herrenschmidt, (Mon Feb 2, 3:48 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Rafael J. Wysocki, (Mon Feb 2, 3:56 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Benjamin Herrenschmidt, (Mon Feb 2, 3:57 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Rafael J. Wysocki, (Mon Feb 2, 4:00 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Linus Torvalds, (Mon Feb 2, 4:18 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Rafael J. Wysocki, (Mon Feb 2, 4:22 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Rafael J. Wysocki, (Mon Feb 2, 4:45 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Ingo Molnar, (Mon Feb 2, 4:49 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Linus Torvalds, (Mon Feb 2, 4:59 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Benjamin Herrenschmidt, (Mon Feb 2, 5:11 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Rafael J. Wysocki, (Mon Feb 2, 5:15 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Linus Torvalds, (Mon Feb 2, 5:15 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Linus Torvalds, (Mon Feb 2, 5:21 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Benjamin Herrenschmidt, (Mon Feb 2, 5:23 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Linus Torvalds, (Mon Feb 2, 5:28 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Rafael J. Wysocki, (Mon Feb 2, 5:29 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Linus Torvalds, (Mon Feb 2, 5:44 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Benjamin Herrenschmidt, (Mon Feb 2, 5:58 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Benjamin Herrenschmidt, (Mon Feb 2, 6:03 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Benjamin Herrenschmidt, (Mon Feb 2, 6:12 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Linus Torvalds, (Mon Feb 2, 6:32 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Benjamin Herrenschmidt, (Mon Feb 2, 6:32 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Benjamin Herrenschmidt, (Mon Feb 2, 6:46 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Benjamin Herrenschmidt, (Mon Feb 2, 8:30 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Linus Torvalds, (Mon Feb 2, 8:47 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Benjamin Herrenschmidt, (Mon Feb 2, 8:51 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Benjamin Herrenschmidt, (Mon Feb 2, 8:55 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Benjamin Herrenschmidt, (Mon Feb 2, 9:03 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Linus Torvalds, (Mon Feb 2, 9:09 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Benjamin Herrenschmidt, (Mon Feb 2, 9:21 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Ingo Molnar, (Mon Feb 2, 10:06 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Benjamin Herrenschmidt, (Mon Feb 2, 11:07 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Rafael J. Wysocki, (Tue Feb 3, 2:26 am)
Re: PCI PM: Restore standard config registers of all devic ..., Peter Zijlstra, (Tue Feb 3, 4:06 am)
Re: PCI PM: Restore standard config registers of all devic ..., Ingo Molnar, (Tue Feb 3, 5:09 am)
Re: PCI PM: Restore standard config registers of all devic ..., Linus Torvalds, (Tue Feb 3, 8:48 am)
Re: PCI PM: Restore standard config registers of all devic ..., Jesse Barnes, (Tue Feb 3, 9:33 am)
Reworking suspend-resume sequence (was: Re: PCI PM: Restor ..., Rafael J. Wysocki, (Tue Feb 3, 10:04 am)
Re: PCI PM: Restore standard config registers of all devic ..., Linus Torvalds, (Tue Feb 3, 10:53 am)
Re: Reworking suspend-resume sequence (was: Re: PCI PM: Re ..., Linus Torvalds, (Tue Feb 3, 10:59 am)
Re: Reworking suspend-resume sequence (was: Re: PCI PM: Re ..., Linus Torvalds, (Tue Feb 3, 11:31 am)
Re: Reworking suspend-resume sequence (was: Re: PCI PM: Re ..., Jesse Barnes, (Tue Feb 3, 11:32 am)
Re: Reworking suspend-resume sequence (was: Re: PCI PM: Re ..., Ingo Molnar, (Tue Feb 3, 11:41 am)
Re: Reworking suspend-resume sequence (was: Re: PCI PM: Re ..., Linus Torvalds, (Tue Feb 3, 11:46 am)
Re: Reworking suspend-resume sequence (was: Re: PCI PM: Re ..., Linus Torvalds, (Tue Feb 3, 12:03 pm)
Re: Reworking suspend-resume sequence (was: Re: PCI PM: Re ..., Ingo Molnar, (Tue Feb 3, 12:13 pm)
Re: Reworking suspend-resume sequence (was: Re: PCI PM: Re ..., Linus Torvalds, (Tue Feb 3, 12:19 pm)
Re: Reworking suspend-resume sequence (was: Re: PCI PM: Re ..., Linus Torvalds, (Tue Feb 3, 12:38 pm)
Re: Reworking suspend-resume sequence (was: Re: PCI PM: Re ..., Ingo Molnar, (Tue Feb 3, 12:53 pm)
Re: Reworking suspend-resume sequence (was: Re: PCI PM: Re ..., Ingo Molnar, (Tue Feb 3, 1:04 pm)
Re: Reworking suspend-resume sequence (was: Re: PCI PM: Re ..., Linus Torvalds, (Tue Feb 3, 1:18 pm)
Re: Reworking suspend-resume sequence (was: Re: PCI PM: Re ..., Ingo Molnar, (Tue Feb 3, 1:57 pm)
Re: Reworking suspend-resume sequence (was: Re: PCI PM: Re ..., Benjamin Herrenschmidt, (Tue Feb 3, 2:02 pm)
Re: Reworking suspend-resume sequence (was: Re: PCI PM: Re ..., Ingo Molnar, (Tue Feb 3, 2:04 pm)
Re: Reworking suspend-resume sequence (was: Re: PCI PM: Re ..., Benjamin Herrenschmidt, (Tue Feb 3, 2:11 pm)
Re: Reworking suspend-resume sequence (was: Re: PCI PM: Re ..., Thomas Gleixner, (Tue Feb 3, 2:12 pm)
Re: Reworking suspend-resume sequence (was: Re: PCI PM: Re ..., Linus Torvalds, (Tue Feb 3, 2:18 pm)
Re: Reworking suspend-resume sequence (was: Re: PCI PM: Re ..., Rafael J. Wysocki, (Tue Feb 3, 2:53 pm)
Re: Reworking suspend-resume sequence (was: Re: PCI PM: Re ..., Rafael J. Wysocki, (Tue Feb 3, 2:56 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Rafael J. Wysocki, (Tue Feb 3, 2:57 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Rafael J. Wysocki, (Tue Feb 3, 3:09 pm)
Re: Reworking suspend-resume sequence (was: Re: PCI PM: Re ..., Benjamin Herrenschmidt, (Tue Feb 3, 3:33 pm)
Re: Reworking suspend-resume sequence (was: Re: PCI PM: Re ..., Rafael J. Wysocki, (Tue Feb 3, 3:44 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Benjamin Herrenschmidt, (Tue Feb 3, 3:59 pm)
Re: Reworking suspend-resume sequence (was: Re: PCI PM: Re ..., Benjamin Herrenschmidt, (Tue Feb 3, 4:05 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Linus Torvalds, (Tue Feb 3, 4:13 pm)
Re: Reworking suspend-resume sequence (was: Re: PCI PM: Re ..., Linus Torvalds, (Tue Feb 3, 4:18 pm)
Re: PCI PM: Restore standard config registers of all devic ..., Rafael J. Wysocki, (Tue Feb 3, 4:23 pm)
Re: Reworking suspend-resume sequence (was: Re: PCI PM: Re ..., Rafael J. Wysocki, (Tue Feb 3, 4:25 pm)
Re: Reworking suspend-resume sequence (was: Re: PCI PM: Re ..., Benjamin Herrenschmidt, (Tue Feb 3, 5:27 pm)
Re: Reworking suspend-resume sequence (was: Re: PCI PM: Re ..., Linus Torvalds, (Tue Feb 3, 5:46 pm)
Re: Reworking suspend-resume sequence (was: Re: PCI PM: Re ..., Russell King, (Wed Feb 4, 3:07 am)
Re: PCI PM: Restore standard config registers of all devic ..., Pavel Machek, (Tue Feb 10, 1:25 pm)
kmalloc during suspend, was Re: PCI PM: Restore standard c ..., Pavel Machek, (Tue Feb 10, 1:25 pm)
Re: Reworking suspend-resume sequence (was: Re: PCI PM: Re ..., Pavel Machek, (Wed Mar 4, 1:02 am)
Re: Reworking suspend-resume sequence (was: Re: PCI PM: Re ..., Benjamin Herrenschmidt, (Wed Mar 4, 4:25 pm)
Re: Reworking suspend-resume sequence (was: Re: PCI PM: Re ..., Pavel Machek, (Thu Mar 5, 1:19 am)
Re: Reworking suspend-resume sequence (was: Re: PCI PM: Re ..., Rafael J. Wysocki, (Thu Mar 5, 12:09 pm)