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From: Andi Kleen <ak@muc.de>
To: Brian King <brking@us.ibm.com>
Cc: paulus@samba.org, benh@kernel.crashing.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/1] pci: Block config access during BIST (resend)
Date: 10 Jan 2005 17:29:50 +0100
Date: Mon, 10 Jan 2005 17:29:50 +0100	[thread overview]
Message-ID: <20050110162950.GB14039@muc.de> (raw)
In-Reply-To: <41E2AC74.9090904@us.ibm.com>

> The problem I am trying to solve is the userspace PCI access methods 
> accessing my config space when the adapter is not able to handle such an 
> access. Today these accesses bypass the device driver altogether and 
> there is no way to stop them. An alternative to this patch would be to 

For this I would add a semaphore or a lock bit to pci_dev.
Probably a simple flag is good enough that is checked by sysfs/proc
and return EBUSY when set. 

This assumes that the driver controls the device during BIST time.

-Andi

  reply	other threads:[~2005-01-10 16:29 UTC|newest]

Thread overview: 69+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-01-10 14:49 [PATCH 1/1] pci: Block config access during BIST (resend) brking
2005-01-10 16:10 ` Andi Kleen
2005-01-10 16:25   ` Brian King
2005-01-10 16:29     ` Andi Kleen [this message]
2005-01-10 22:57       ` Brian King
2005-01-11 14:37         ` Alan Cox
2005-01-11 17:33           ` Andi Kleen
2005-01-11 22:17             ` Brian King
2005-01-13 15:36               ` Alan Cox
2005-01-13 15:35             ` Alan Cox
2005-01-13 18:03               ` Andi Kleen
2005-01-13 18:46                 ` Alan Cox
2005-01-13 20:23                   ` Andi Kleen
2005-01-13 19:44                     ` Alan Cox
2005-01-13 21:50                       ` Andi Kleen
2005-01-15  0:33                         ` Alan Cox
2005-01-15  1:44                           ` Andi Kleen
2005-01-15  1:01                             ` Alan Cox
2005-01-15  6:20                               ` Benjamin Herrenschmidt
2005-01-16  0:58                                 ` Alan Cox
2005-01-16  4:01                                   ` Benjamin Herrenschmidt
2005-01-16  4:48                                     ` Andi Kleen
2005-01-16 20:53                                       ` Benjamin Herrenschmidt
2005-01-16 22:07                                         ` Andi Kleen
2005-01-16 22:14                                           ` Benjamin Herrenschmidt
2005-01-16 21:10                                       ` Alan Cox
2005-01-18 15:14                     ` Brian King
2005-01-18 23:31                       ` Andi Kleen
2005-01-18 23:36                         ` Brian King
2005-01-19 22:40                       ` Alan Cox
2005-01-26 16:34                         ` Brian King
2005-01-26 22:10                           ` Benjamin Herrenschmidt
2005-01-27 15:53                             ` Alan Cox
2005-01-27 18:44                               ` Brian King
2005-01-27 23:15                               ` Benjamin Herrenschmidt
2005-01-28 14:35                               ` Brian King
2005-02-01  7:27                                 ` Greg KH
2005-02-01 15:12                                   ` Brian King
2005-02-01 15:44                                     ` Matthew Wilcox
2005-02-01 17:35                                       ` Brian King
2005-02-01 17:47                                         ` Matthew Wilcox
2005-02-01 19:01                                           ` Brian King
2005-02-01 23:00                                           ` Benjamin Herrenschmidt
2005-02-02 15:33                                           ` Brian King
2005-02-08 20:08                                             ` Greg KH
2005-06-21 16:08                                               ` Brian King
2005-08-23 15:11                                                 ` [PATCH 1/2] " Brian King
2005-08-23 15:14                                                   ` [PATCH 2/2] ipr: " Brian King
2005-09-01 23:03                                                   ` [PATCH 1/2] pci: " Andrew Morton
2005-09-02 23:56                                                     ` Brian King
2005-09-02 22:43                                                       ` Grant Grundler
2005-09-02 23:11                                                         ` Paul Mackerras
2005-09-03  0:08                                                           ` Grant Grundler
2005-09-03 23:37                                                             ` Brian King
2005-09-03 19:39                                                               ` Grant Grundler
2005-09-05 18:31                                                                 ` Brian King
2005-09-06  4:48                                                                   ` Grant Grundler
2005-09-06 14:28                                                                     ` Brian King
2005-09-07  5:49                                                                 ` Paul Mackerras
2005-09-07 14:58                                                                   ` Grant Grundler
2005-09-07 22:39                                                                     ` Paul Mackerras
2005-09-08  1:21                                                                       ` Grant Grundler
2005-09-08  3:05                                                                         ` Brian King
2005-09-08  4:08                                                                           ` Grant Grundler
2005-02-01 18:58                                       ` [PATCH 1/1] " Greg KH
2005-02-01 23:07                                         ` Benjamin Herrenschmidt
2005-02-01 22:58                                       ` Benjamin Herrenschmidt
2005-01-10 19:23   ` Alan Cox
  -- strict thread matches above, loose matches on Subject: below --
2004-12-14 19:41 brking

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