Re: [Patch v2] Make PCI extended config space (MMCONFIG) a driver opt-in | KernelTrap

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a driver opt-in

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From: Matthew Wilcox <matthew@...>

To: Arjan van de Ven <arjan@...>

Cc: Loic Prylli <loic@...>, Ivan Kokshaysky <ink@...>, Greg KH <greg@...>, Linus Torvalds <torvalds@...>, Greg KH <gregkh@...>, <linux-kernel@...>, Jeff Garzik <jeff@...>, <linux-pci@...>, Benjamin Herrenschmidt <benh@...>, Martin Mares <mj@...>, Tony Camuso <tcamuso@...>

Subject: Re: [Patch v2] Make PCI extended config space (MMCONFIG) a driver opt-in

Date: Sunday, January 13, 2008 - 4:43 pm

On Sun, Jan 13, 2008 at 10:41:24AM -0800, Arjan van de Ven wrote:
quoted text> Note: There is not a 100% overlap between "need" and "will not be used in 
> the patches that use legacy for < 256". In the other patches posted, 
> extended config space will be used in cases where it won't be with my 
> patch. (Most obvious one is an "lspci -vx" from automated scripts). 

I believe you to be mistaken in this belief.  If you take Ivan's patch,
conf1 is used for all accesses below 256 bytes.  lspci -x only dumps
config space up to 64 bytes; lspci -xxxx is needed to show extended pci
config space.

-- 
Intel are signing my paycheques ... these opinions are still mine
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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Messages in current thread:

[Patch v2] Make PCI extended config space (MMCONFIG) a drive..., Arjan van de Ven, (Tue Dec 25, 7:26 am)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Jeff Garzik, (Thu Dec 27, 7:52 am)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Linus Torvalds, (Thu Dec 27, 1:52 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Arjan van de Ven, (Thu Dec 27, 10:09 am)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Øyvind Vågen Jægtnes, (Tue Jan 15, 8:58 am)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Greg KH, (Fri Jan 11, 3:02 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Matthew Wilcox, (Fri Jan 11, 3:28 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Arjan van de Ven, (Fri Jan 11, 3:40 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Greg KH, (Fri Jan 11, 3:45 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Matthew Wilcox, (Fri Jan 11, 3:49 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Linus Torvalds, (Fri Jan 11, 3:58 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Matthew Wilcox, (Fri Jan 11, 4:17 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Linus Torvalds, (Fri Jan 11, 4:27 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Matthew Wilcox, (Fri Jan 11, 4:42 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Linus Torvalds, (Fri Jan 11, 5:12 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Matthew Wilcox, (Fri Jan 11, 5:17 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Linus Torvalds, (Fri Jan 11, 5:28 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Matthew Wilcox, (Fri Jan 11, 5:38 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Ivan Kokshaysky, (Fri Jan 11, 7:58 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Greg KH, (Fri Jan 11, 8:26 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Ivan Kokshaysky, (Sat Jan 12, 10:40 am)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Arjan van de Ven, (Sat Jan 12, 1:45 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Loic Prylli, (Sun Jan 13, 2:23 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Arjan van de Ven, (Sun Jan 13, 2:41 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Loic Prylli, (Sun Jan 13, 4:51 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Matthew Wilcox, (Sun Jan 13, 4:43 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Loic Prylli, (Sun Jan 13, 5:18 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Ivan Kokshaysky, (Sat Jan 12, 5:49 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Arjan van de Ven, (Sat Jan 12, 7:01 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Tony Camuso, (Sat Jan 12, 8:12 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Arjan van de Ven, (Sat Jan 12, 8:40 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Tony Camuso, (Sat Jan 12, 9:36 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Arjan van de Ven, (Sun Jan 13, 12:42 am)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Tony Camuso, (Sun Jan 13, 8:43 am)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Arjan van de Ven, (Sun Jan 13, 1:03 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Tony Camuso, (Sun Jan 13, 5:28 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Alan Cox, (Sun Jan 13, 8:54 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Linus Torvalds, (Mon Jan 14, 1:20 am)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Arjan van de Ven, (Sun Jan 13, 9:33 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Tony Camuso, (Sun Jan 13, 11:29 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Arjan van de Ven, (Mon Jan 14, 1:05 am)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Tony Camuso, (Mon Jan 14, 9:01 am)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Arjan van de Ven, (Mon Jan 14, 10:46 am)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Tony Camuso, (Mon Jan 14, 11:23 am)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Arjan van de Ven, (Mon Jan 14, 12:01 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Tony Camuso, (Mon Jan 14, 12:08 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Alan Cox, (Mon Jan 14, 5:11 am)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Matthew Wilcox, (Sun Jan 13, 12:47 am)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Jeff Garzik, (Sun Jan 13, 2:43 am)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Matthew Wilcox, (Sat Jan 12, 2:17 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Arjan van de Ven, (Sat Jan 12, 11:46 am)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Ivan Kokshaysky, (Sat Jan 12, 12:23 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Benjamin Herrenschmidt, (Sun Jan 13, 3:08 am)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Matthew Wilcox, (Sun Jan 13, 3:24 am)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Arjan van de Ven, (Sun Jan 13, 1:01 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Matthew Wilcox, (Mon Jan 14, 6:52 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Adrian Bunk, (Mon Jan 14, 7:04 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Loic Prylli, (Tue Jan 15, 12:00 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Greg KH, (Tue Jan 15, 1:46 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Matthew Wilcox, (Tue Jan 15, 1:56 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Grant Grundler, (Sat Jan 19, 12:58 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Tony Camuso, (Mon Jan 28, 2:32 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Greg KH, (Mon Jan 28, 4:44 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Arjan van de Ven, (Mon Jan 28, 11:05 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Matthew Wilcox, (Mon Jan 28, 11:18 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Greg KH, (Tue Jan 29, 9:19 am)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Jesse Barnes, (Thu Jan 31, 1:51 am)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Matthew Wilcox, (Tue Jan 29, 11:45 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Ivan Kokshaysky, (Wed Jan 30, 11:15 am)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Arjan van de Ven, (Wed Jan 30, 11:42 am)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Ivan Kokshaysky, (Wed Jan 30, 4:14 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Tony Camuso, (Tue Jan 29, 10:15 am)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Arjan van de Ven, (Tue Jan 29, 10:47 am)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Tony Camuso, (Tue Jan 29, 11:15 am)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Arjan van de Ven, (Tue Jan 29, 11:29 am)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Matthew Wilcox, (Tue Jan 29, 7:57 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Tony Camuso, (Tue Jan 29, 10:30 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Tony Camuso, (Tue Jan 29, 12:26 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Matthew Wilcox, (Mon Jan 28, 6:31 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Greg KH, (Mon Jan 28, 6:53 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Matthew Wilcox, (Mon Jan 28, 10:56 pm)

[PATCH] Change pci_raw_ops to pci_raw_read/write, Matthew Wilcox, (Mon Jan 28, 11:03 pm)

Re: [PATCH] Change pci_raw_ops to pci_raw_read/write, Yinghai Lu, (Sun Feb 3, 3:30 am)

Re: [PATCH] Change pci_raw_ops to pci_raw_read/write, Tony Camuso, (Thu Feb 7, 11:54 am)

Re: [PATCH] Change pci_raw_ops to pci_raw_read/write, Matthew Wilcox, (Sat Feb 9, 8:41 am)

Re: [PATCH] Change pci_raw_ops to pci_raw_read/write, Yinghai Lu, (Sun Feb 10, 2:25 am)

Re: [PATCH] Change pci_raw_ops to pci_raw_read/write, Greg KH, (Sun Feb 10, 3:21 am)

Re: [PATCH] Change pci_raw_ops to pci_raw_read/write, Matthew Wilcox, (Sun Feb 10, 10:51 am)

Re: [PATCH] Change pci_raw_ops to pci_raw_read/write, Yinghai Lu, (Sun Feb 10, 4:16 pm)

Re: [PATCH] Change pci_raw_ops to pci_raw_read/write, Linus Torvalds, (Sun Feb 10, 4:24 pm)

Re: [PATCH] Change pci_raw_ops to pci_raw_read/write, Matthew Wilcox, (Sun Feb 10, 4:45 pm)

Re: [PATCH] Change pci_raw_ops to pci_raw_read/write, Yinghai Lu, (Sun Feb 10, 9:49 pm)

Re: [PATCH] Change pci_raw_ops to pci_raw_read/write, Andrew Morton, (Mon Feb 11, 6:10 pm)

Re: [PATCH] Change pci_raw_ops to pci_raw_read/write, Ingo Molnar, (Mon Feb 11, 6:38 pm)

Re: [PATCH] Change pci_raw_ops to pci_raw_read/write, Robert Hancock, (Sun Feb 10, 10:53 pm)

Re: [PATCH] Change pci_raw_ops to pci_raw_read/write, Yinghai Lu, (Mon Feb 11, 1:59 am)

raw_pci_read in quirk_intel_irqbalance, Matthew Wilcox, (Sun Feb 10, 7:02 pm)

Re: raw_pci_read in quirk_intel_irqbalance, Matthew Wilcox, (Mon Feb 11, 1:04 am)

Re: raw_pci_read in quirk_intel_irqbalance, Grant Grundler, (Mon Feb 11, 3:49 am)

Re: raw_pci_read in quirk_intel_irqbalance, Matthew Wilcox, (Mon Feb 11, 12:15 pm)

Re: raw_pci_read in quirk_intel_irqbalance, Linus Torvalds, (Mon Feb 11, 1:18 pm)

Re: raw_pci_read in quirk_intel_irqbalance, Grant Grundler, (Mon Feb 11, 3:38 pm)

Re: [PATCH] Change pci_raw_ops to pci_raw_read/write, Matthew Wilcox, (Sun Feb 10, 4:19 pm)

Re: [PATCH] Change pci_raw_ops to pci_raw_read/write, Yinghai Lu, (Sun Feb 10, 4:25 pm)

Re: [PATCH] Change pci_raw_ops to pci_raw_read/write, Matthew Wilcox, (Sun Feb 10, 4:32 pm)

Re: [PATCH] Change pci_raw_ops to pci_raw_read/write, Yinghai Lu, (Sun Feb 10, 4:47 pm)

Re: [PATCH] Change pci_raw_ops to pci_raw_read/write, Grant Grundler, (Sun Feb 10, 3:13 pm)

Re: [PATCH] Change pci_raw_ops to pci_raw_read/write, Matthew Wilcox, (Sun Feb 10, 3:37 pm)

Re: [PATCH] Change pci_raw_ops to pci_raw_read/write, Arjan van de Ven, (Thu Feb 7, 12:28 pm)

Re: [PATCH] Change pci_raw_ops to pci_raw_read/write, Tony Camuso, (Thu Feb 7, 12:36 pm)

Re: [PATCH] Change pci_raw_ops to pci_raw_read/write, Grant Grundler, (Thu Feb 7, 10:28 pm)

PCI x86: always use conf1 to access config space below 256 b..., Matthew Wilcox, (Mon Jan 28, 10:57 pm)

Re: PCI x86: always use conf1 to access config space below 2..., Greg KH, (Tue Jan 29, 9:21 am)

Re: PCI x86: always use conf1 to access config space below 2..., Matthew Wilcox, (Tue Jan 29, 7:43 pm)

Re: PCI x86: always use conf1 to access config space below 2..., Linus Torvalds, (Tue Jan 29, 8:04 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Tony Camuso, (Tue Jan 15, 3:27 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Linus Torvalds, (Tue Jan 15, 3:38 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Loic Prylli, (Tue Jan 15, 6:12 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Matthew Wilcox, (Tue Jan 15, 3:40 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Matthew Wilcox, (Sun Jan 13, 3:58 am)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Jesse Barnes, (Fri Jan 11, 8:17 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Arjan van de Ven, (Fri Jan 11, 3:54 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Greg KH, (Fri Jan 11, 4:55 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Arjan van de Ven, (Fri Jan 11, 3:09 pm)

Re: [Patch v2] Make PCI extended config space (MMCONFIG) a d..., Greg KH, (Fri Jan 11, 3:14 pm)

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