From: Steven Newbury <steve@snewbury.org.uk>
To: Yinghai Lu <yinghai@kernel.org>
Cc: "Barnes, Jesse" <jesse.barnes@intel.com>,
Dave Airlie <airlied@linux.ie>,
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: Mon, 16 Apr 2012 08:01:46 +0100 [thread overview]
Message-ID: <4F8BC3DA.1090003@snewbury.org.uk> (raw)
In-Reply-To: <CAE9FiQX7iVYZSoEJVVHJTx1gUSKh6RP+iJRGJqMZmDgkFDnPQQ@mail.gmail.com>
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On 16/04/12 07:54, Yinghai Lu wrote:
> On Sun, Apr 15, 2012 at 1:06 PM, Yinghai Lu <yinghai@kernel.org>
> wrote:
>>> 3. use pci_bus_allocate_resource in drm/radeon driver ... ===>
>>> but that could fail. so could hack it like a. disable bar 0x10
>>> and steal BAR address, then set 0x30 to that address then copy
>>> ROM to ram. after that, disable rom again and set back address
>>> to 0x10. You try to update radeon_get_bios() to achieve that.
>
> patches for solution 3: map_rom.patch will try to borrow mem or mem
> pref bar for ROM copying
>
> and You still need to use pci=norom
>
I've tested solution 2 so far and it works well. I'll test your
patches for 1 and 3 later today.
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WARNING: multiple messages have this Message-ID (diff)
From: Steven Newbury <steve@snewbury.org.uk>
To: Yinghai Lu <yinghai@kernel.org>
Cc: "Barnes, Jesse" <jesse.barnes@intel.com>,
Dave Airlie <airlied@linux.ie>,
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: Mon, 16 Apr 2012 08:01:46 +0100 [thread overview]
Message-ID: <4F8BC3DA.1090003@snewbury.org.uk> (raw)
In-Reply-To: <CAE9FiQX7iVYZSoEJVVHJTx1gUSKh6RP+iJRGJqMZmDgkFDnPQQ@mail.gmail.com>
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On 16/04/12 07:54, Yinghai Lu wrote:
> On Sun, Apr 15, 2012 at 1:06 PM, Yinghai Lu <yinghai@kernel.org>
> wrote:
>>> 3. use pci_bus_allocate_resource in drm/radeon driver ... ===>
>>> but that could fail. so could hack it like a. disable bar 0x10
>>> and steal BAR address, then set 0x30 to that address then copy
>>> ROM to ram. after that, disable rom again and set back address
>>> to 0x10. You try to update radeon_get_bios() to achieve that.
>
> patches for solution 3: map_rom.patch will try to borrow mem or mem
> pref bar for ROM copying
>
> and You still need to use pci=norom
>
I've tested solution 2 so far and it works well. I'll test your
patches for 1 and 3 later today.
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next prev parent reply other threads:[~2012-04-16 7:02 UTC|newest]
Thread overview: 94+ 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 11:58 ` Steven Newbury
2012-04-13 12:49 ` Steven Newbury
2012-04-13 12:49 ` Steven Newbury
2012-04-13 13:26 ` 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 14:08 ` 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 15:23 ` 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 17:37 ` Steven Newbury
2012-04-14 18:05 ` Steven Newbury
2012-04-14 18:05 ` Steven Newbury
2012-04-14 18:42 ` Steven Newbury
2012-04-14 18:42 ` Steven Newbury
2012-04-14 19:08 ` Steven Newbury
2012-04-14 19:08 ` Steven Newbury
2012-04-14 19:21 ` 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 10:19 ` Steven Newbury
2012-04-15 10:20 ` Steven Newbury
2012-04-15 10:20 ` Steven Newbury
2012-04-15 11:37 ` Steven Newbury
2012-04-15 11:37 ` Steven Newbury
2012-04-15 17:25 ` Steven Newbury
2012-04-15 17:25 ` Steven Newbury
2012-04-15 17:31 ` 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 [this message]
2012-04-16 7:01 ` Steven Newbury
2012-04-16 17:29 ` Yinghai Lu
2012-04-18 7:21 ` Steven Newbury
2012-04-18 7:21 ` Steven Newbury
2012-04-24 9:49 ` 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
2012-05-21 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 10:18 ` Steven Newbury
2012-04-15 11:31 ` Steven Newbury
2012-04-15 11:31 ` Steven Newbury
2012-04-12 16:29 ` Steven Newbury
2012-04-11 11:43 ` Steven Newbury
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