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: Alan Cox <alan@...>

To: <tcamuso@...>

Cc: Arjan van de Ven <arjan@...>, Ivan Kokshaysky <ink@...>, Greg KH <greg@...>, Matthew Wilcox <matthew@...>, Linus Torvalds <torvalds@...>, Greg KH <gregkh@...>, <linux-kernel@...>, Jeff Garzik <jeff@...>, <linux-pci@...>, Benjamin Herrenschmidt <benh@...>, Martin Mares <mj@...>, Loic Prylli <loic@...>, Prarit Bhargava <prarit@...>, Chumbalkar, Nagananda <Nagananda.Chumbalkar@...>, Schoeller, Patrick (Linux - Houston, TX) <Patrick.Schoeller@...>, Bhavana Nagendra <bnagendr@...>

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

Date: Sunday, January 13, 2008 - 8:54 pm

On Sun, 13 Jan 2008 16:28:08 -0500
Tony Camuso <tcamuso@redhat.com> wrote:

quoted text> Arjan van de Ven wrote:
> 
> >> The PCI spec provides for conf1 as an architected solution. It's not
> >> going away, and especially not in x86 land where Port IO is built-in
> >> to the CPU.
> > 
> > again sadly you're wrong. 
> > 
> 
> As someone gently pointed out to me, you are in a position to know this,
> so I probably am wrong.

I suspect Arjan is wrong. It might be some Intel agenda but I still see
fairly new driver reference code that is hardcoding port accesses even
when designed for Redmond products.

Alan
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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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