From: Steven Newbury <steve@snewbury.org.uk>
To: Yinghai Lu <yinghai@kernel.org>,
"Barnes, Jesse" <jesse.barnes@intel.com>,
Dave Airlie <airlied@linux.ie>
Cc: Bjorn Helgaas <bhelgaas@google.com>,
linux-pci@vger.kernel.org,
DRI mailing list <dri-devel@lists.freedesktop.org>
Subject: Re: PCI resources above 4GB
Date: Thu, 12 Apr 2012 17:29:43 +0100 [thread overview]
Message-ID: <1334248183.2910.3.camel@Nokia-N900> (raw)
In-Reply-To: <1334229754.30606.7.camel@Nokia-N900>
On Thu, 12 Apr 2012, 12:22:34 BST, Steven Newbury <steve@snewbury.org.uk> wrote:
> I've attempted to modify probe.c to disable 64-bit BARs not allocated
> above 4G so they get reallocated above when possible later. It seemed
> to work, but again broke GMA despite the BAR originally containing an
> invalid address as mentioned above, it seems for some reason something
> is different when the conflict is detected and rellocated, compared to
> disabling it early then allocating a valid value..?
I understand now why it didn't work. Memory decoding was enabled in the GMA device. When it's detected as in conflict with system RAM it gets reallocated cleanly, but setting the BAR to 0 prevents that from happening. Somehow I need to get the resources I want moved onto a realloc list, but I can't work out where or how...
next prev parent reply other threads:[~2012-04-12 16:27 UTC|newest]
Thread overview: 73+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-09 10:49 PCI resources above 4GB Steven Newbury
2012-04-10 0:51 ` Bjorn Helgaas
2012-04-10 10:53 ` Steven Newbury
2012-04-10 15:16 ` Yinghai Lu
[not found] ` <4F8467AA.90305@snewbury.org.uk>
2012-04-10 17:29 ` Steven Newbury
2012-04-10 18:40 ` Yinghai Lu
2012-04-10 18:44 ` Steven Newbury
2012-04-10 19:00 ` Steven Newbury
2012-04-10 19:04 ` Steven Newbury
2012-04-10 19:16 ` Yinghai Lu
2012-04-10 19:46 ` Steven Newbury
2012-04-10 20:07 ` Yinghai Lu
2012-04-10 20:26 ` Steven Newbury
2012-04-10 20:45 ` Yinghai Lu
2012-04-10 21:19 ` Steven Newbury
2012-04-11 3:37 ` Bjorn Helgaas
2012-04-11 5:33 ` Steven Newbury
2012-04-11 9:03 ` Steven Newbury
2012-04-11 14:33 ` Steven Newbury
2012-04-11 23:59 ` Bjorn Helgaas
2012-04-12 11:39 ` Steven Newbury
2012-04-12 0:57 ` Yinghai Lu
2012-04-12 11:22 ` Steven Newbury
2012-04-12 16:07 ` Yinghai Lu
2012-04-12 16:40 ` Steven Newbury
2012-04-13 8:26 ` Yinghai Lu
2012-04-13 8:34 ` Steven Newbury
2012-04-13 11:45 ` Steven Newbury
2012-04-13 11:58 ` Steven Newbury
2012-04-13 12:49 ` Steven Newbury
2012-04-13 13:26 ` Steven Newbury
2012-04-13 13:52 ` drm-next i915 regression? ( was: Re: PCI resources above 4GB) Steven Newbury
2012-04-13 14:08 ` Steven Newbury
2012-04-13 14:13 ` Daniel Vetter
2012-04-13 14:19 ` Steven Newbury
2012-04-13 15:23 ` Steven Newbury
2012-04-13 15:49 ` Steven Newbury
2012-04-13 16:17 ` Yinghai Lu
2012-04-13 17:12 ` btrfs oops [was Re: drm-next i915 regression? ( was: Re: PCI resources above 4GB)] Steven Newbury
2012-04-13 17:38 ` drm-next i915 regression? ( was: Re: PCI resources above 4GB) Steven Newbury
2012-04-13 18:12 ` Steven Newbury
2012-04-13 21:51 ` Btrfs corruption Oops " Steven Newbury
2012-04-14 17:37 ` PCI resources above 4GB Steven Newbury
2012-04-14 18:05 ` Steven Newbury
2012-04-14 18:42 ` Steven Newbury
2012-04-14 19:08 ` Steven Newbury
2012-04-14 19:21 ` Steven Newbury
2012-04-14 20:48 ` Yinghai Lu
2012-04-15 10:19 ` Steven Newbury
2012-04-15 10:20 ` Steven Newbury
2012-04-15 11:37 ` Steven Newbury
2012-04-15 17:25 ` Steven Newbury
2012-04-15 17:31 ` Steven Newbury
2012-04-15 20:05 ` Yinghai Lu
2012-04-15 20:06 ` Yinghai Lu
2012-04-16 6:54 ` Yinghai Lu
2012-04-16 7:01 ` Steven Newbury
2012-04-16 17:29 ` Yinghai Lu
2012-04-18 7:21 ` Steven Newbury
2012-04-24 9:49 ` Steven Newbury
[not found] ` <4FB227D3.7090002@snewbury.org.uk>
[not found] ` <CAE9FiQX48eCS85eWMFxm6fCWgu2zwxvSywtQhsf-35WEvBfJVQ@mail.gmail.com>
2012-05-17 12:27 ` Steven Newbury
2012-05-17 12:34 ` Steven Newbury
2012-05-17 16:36 ` Yinghai Lu
2012-05-18 7:45 ` Yinghai Lu
2012-05-18 9:08 ` Yinghai Lu
2012-05-21 17:27 ` Steven Newbury
2012-05-29 23:19 ` Bjorn Helgaas
2012-06-01 23:06 ` Bjorn Helgaas
2012-04-15 3:21 ` Yinghai Lu
2012-04-15 10:18 ` Steven Newbury
2012-04-15 11:31 ` Steven Newbury
2012-04-12 16:29 ` Steven Newbury [this message]
2012-04-11 11:43 ` Steven Newbury
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