On 08/20/2011 07:51 PM, Alex Williamson wrote:
We need to address both the description and enforcement of device
groups. Groups are formed any time the iommu does not have resolution
between a set of devices. On x86, this typically happens when a
PCI-to-PCI bridge exists between the set of
On Wed, 17 Aug 2011 05:44:56 +0800, Scott Wood scottw...@freescale.com
wrote:
On 08/16/2011 04:25 AM, Chunhe Lan wrote:
Flash(cfi-flash, jedec-flash, and so on) nodes with the
property status=disabled are not usable and so avoid
adding disabled flash devices with the system.
Signed-off-by:
On Wed, 17 Aug 2011 05:46:29 +0800, Scott Wood scottw...@freescale.com
wrote:
On 08/16/2011 04:27 AM, Chunhe Lan wrote:
Nand flash nodes with the property status=disabled are not
usable and so avoid adding disabled nand flash devices with
the system.
Signed-off-by: Chunhe Lan
On Mon, 22 Aug 2011, walter harms wrote:
Am 21.08.2011 18:10, schrieb Julia Lawall:
From: Julia Lawall ju...@diku.dk
np is initialized to the result of calling a function that calls
of_node_get, so of_node_put should be called before the pointer is dropped.
The semantic match
Am 21.08.2011 18:10, schrieb Julia Lawall:
From: Julia Lawall ju...@diku.dk
np is initialized to the result of calling a function that calls
of_node_get, so of_node_put should be called before the pointer is dropped.
The semantic match that finds this problem is as follows:
On Mon, Aug 22, 2011 at 02:30:26AM -0400, Avi Kivity wrote:
On 08/20/2011 07:51 PM, Alex Williamson wrote:
We need to address both the description and enforcement of device
groups. Groups are formed any time the iommu does not have resolution
between a set of devices. On x86, this
On Thu, 2011-08-18 at 10:33 +0800, b35...@freescale.com wrote:
From: Liu Shuo b35...@freescale.com
Freescale FCM controller has a 2K size limitation of buffer RAM. In order
to support the Nand flash chip whose page size is larger than 2K bytes,
we divide a page into multi-2K pages for MTD
On 08/22/2011 01:46 PM, Joerg Roedel wrote:
$ readlink /sys/devices/pci:00/:00:19.0/iommu_group
../../../path/to/device/which/represents/the/resource/constraint
(the pci-to-pci bridge on x86, or whatever node represents partitionable
endpoints on power)
That does not work. The
On Fri, 2011-08-19 at 13:10 -0500, Scott Wood wrote:
On 08/19/2011 03:57 AM, Matthieu CASTET wrote:
LiuShuo a écrit :
于 2011年08月19日 01:00, Matthieu CASTET 写道:
b35...@freescale.com a écrit :
From: Liu Shuob35...@freescale.com
Freescale FCM controller has a 2K size limitation of buffer
On 20/08/11 08:23, Julia Lawall wrote:
From: Julia Lawall ju...@diku.dk
of_parse_phandle increments the reference count of np, so this should be
decremented before trying the next possibility.
The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)
//
On Mon, 22 Aug 2011, walter harms wrote:
Am 21.08.2011 18:10, schrieb Julia Lawall:
From: Julia Lawall ju...@diku.dk
np is initialized to the result of calling a function that calls
of_node_get, so of_node_put should be called before the pointer is dropped.
The semantic match
On Mon, Aug 22, 2011 at 06:51:35AM -0400, Avi Kivity wrote:
On 08/22/2011 01:46 PM, Joerg Roedel wrote:
That does not work. The bridge in question may not even be visible as a
PCI device, so you can't link to it. This is the case on a few PCIe
cards which only have a PCIx chip and a
On 08/22/2011 03:36 PM, Roedel, Joerg wrote:
On Mon, Aug 22, 2011 at 06:51:35AM -0400, Avi Kivity wrote:
On 08/22/2011 01:46 PM, Joerg Roedel wrote:
That does not work. The bridge in question may not even be visible as a
PCI device, so you can't link to it. This is the case on a few
On Mon, Aug 22, 2011 at 08:42:35AM -0400, Avi Kivity wrote:
On 08/22/2011 03:36 PM, Roedel, Joerg wrote:
On the AMD IOMMU side this information is stored in the IVRS ACPI table.
Not sure about the VT-d side, though.
I see. There is no sysfs node representing it?
No. It also doesn't exist
On 08/22/2011 03:55 PM, Roedel, Joerg wrote:
On Mon, Aug 22, 2011 at 08:42:35AM -0400, Avi Kivity wrote:
On 08/22/2011 03:36 PM, Roedel, Joerg wrote:
On the AMD IOMMU side this information is stored in the IVRS ACPI table.
Not sure about the VT-d side, though.
I see. There is no
On Mon, Aug 22, 2011 at 09:06:07AM -0400, Avi Kivity wrote:
On 08/22/2011 03:55 PM, Roedel, Joerg wrote:
Well, I don't think its really meaningless, but we need some way to
communicate the information about device groups to userspace.
I mean the contents of the group descriptor. There
On 08/22/2011 04:15 PM, Roedel, Joerg wrote:
On Mon, Aug 22, 2011 at 09:06:07AM -0400, Avi Kivity wrote:
On 08/22/2011 03:55 PM, Roedel, Joerg wrote:
Well, I don't think its really meaningless, but we need some way to
communicate the information about device groups to userspace.
I
Julia Lawall wrote:
diff --git a/sound/soc/fsl/fsl_dma.c b/sound/soc/fsl/fsl_dma.c
index 0efc04a..b33271b 100644
--- a/sound/soc/fsl/fsl_dma.c
+++ b/sound/soc/fsl/fsl_dma.c
@@ -880,10 +880,12 @@ static struct device_node *find_ssi_node(struct
device_node *dma_channel_np)
np =
On Mon, 22 Aug 2011, Timur Tabi wrote:
Julia Lawall wrote:
diff --git a/sound/soc/fsl/fsl_dma.c b/sound/soc/fsl/fsl_dma.c
index 0efc04a..b33271b 100644
--- a/sound/soc/fsl/fsl_dma.c
+++ b/sound/soc/fsl/fsl_dma.c
@@ -880,10 +880,12 @@ static struct device_node *find_ssi_node(struct
of_parse_phandle increments the reference count of np, so this should be
decremented before trying the next possibility.
Since we don't actually use np, we can decrement the reference count
immediately.
Reported-by: Julia Lawall ju...@diku.dk
Signed-off-by: Timur Tabi ti...@freescale.com
---
On Mon, Aug 22, 2011 at 09:17:41AM -0400, Avi Kivity wrote:
On 08/22/2011 04:15 PM, Roedel, Joerg wrote:
On Mon, Aug 22, 2011 at 09:06:07AM -0400, Avi Kivity wrote:
On 08/22/2011 03:55 PM, Roedel, Joerg wrote:
Well, I don't think its really meaningless, but we need some way to
On Mon, Aug 22, 2011 at 11:58:33AM +0100, Artem Bityutskiy wrote:
On Fri, 2011-08-19 at 13:10 -0500, Scott Wood wrote:
On 08/19/2011 03:57 AM, Matthieu CASTET wrote:
LiuShuo a écrit :
??? 2011???08???19??? 01:00, Matthieu CASTET ??:
b35...@freescale.com a écrit :
From: Liu
On Mon, 2011-08-22 at 15:55 +1000, David Gibson wrote:
On Sat, Aug 20, 2011 at 09:51:39AM -0700, Alex Williamson wrote:
We had an extremely productive VFIO BoF on Monday. Here's my attempt to
capture the plan that I think we agreed to:
We need to address both the description and
On 08/22/2011 05:58 AM, Artem Bityutskiy wrote:
On Fri, 2011-08-19 at 13:10 -0500, Scott Wood wrote:
On 08/19/2011 03:57 AM, Matthieu CASTET wrote:
How the bad block marker are handled with this remapping ?
It has to be migrated prior to first use (this needs to be documented,
and ideally a
On 08/22/2011 10:25 AM, Ivan Djelic wrote:
Did you take into account the fact that because MTD thinks this a 2K chip,
you will have to wait twice for the nand busy read time (typically 25 us) per
each 4K read. In other words, to read 4 kBytes you will do:
1. send read0 (00), send address,
Scott Wood a écrit :
On 08/22/2011 10:25 AM, Ivan Djelic wrote:
Did you take into account the fact that because MTD thinks this a 2K chip,
you will have to wait twice for the nand busy read time (typically 25 us) per
each 4K read. In other words, to read 4 kBytes you will do:
1. send read0
On 08/22/2011 11:13 AM, Matthieu CASTET wrote:
Scott Wood a écrit :
To eliminate it we'd need to do an extra data transfer without reissuing
the command, which Shuo was unable to get to work.
That's weird because our controller seems quite flexible [1].
Something like that should work ?
Scott Wood a écrit :
On 08/22/2011 11:13 AM, Matthieu CASTET wrote:
Scott Wood a écrit :
To eliminate it we'd need to do an extra data transfer without reissuing
the command, which Shuo was unable to get to work.
That's weird because our controller seems quite flexible [1].
Something like
On Sat, Aug 20, 2011 at 12:51:39PM -0400, Alex Williamson wrote:
We had an extremely productive VFIO BoF on Monday. Here's my attempt to
capture the plan that I think we agreed to:
We need to address both the description and enforcement of device
groups. Groups are formed any time the
On Mon, 2011-08-22 at 19:25 +0200, Joerg Roedel wrote:
On Sat, Aug 20, 2011 at 12:51:39PM -0400, Alex Williamson wrote:
We had an extremely productive VFIO BoF on Monday. Here's my attempt to
capture the plan that I think we agreed to:
We need to address both the description and
On Tue, 26 Jul 2011 14:07:26 -0400
Alexandre Bounine alexandre.boun...@idt.com wrote:
Replace/remove use of RIO v.1.2 registers/bits that are not forward-compatible
with newer versions of RapidIO specification.
RapidIO specification v. 1.3 removed Write Port CSR, Doorbell CSR,
Mailbox CSR
On 22/08/11 15:22, Timur Tabi wrote:
of_parse_phandle increments the reference count of np, so this should be
decremented before trying the next possibility.
Since we don't actually use np, we can decrement the reference count
immediately.
Reported-by: Julia Lawall ju...@diku.dk
On Mon, 2011-08-22 at 13:29 -0700, aafabbri wrote:
Each device fd would then support a
similar set of ioctls and mapping (mmio/pio/config) interface as current
vfio, except for the obvious domain and dma ioctls superseded by the
group fd.
Another valid model might be that
On Mon, 2011-08-22 at 09:30 +0300, Avi Kivity wrote:
On 08/20/2011 07:51 PM, Alex Williamson wrote:
We need to address both the description and enforcement of device
groups. Groups are formed any time the iommu does not have resolution
between a set of devices. On x86, this typically
On Mon, 2011-08-22 at 09:45 -0600, Alex Williamson wrote:
Yes, that's the idea. An open question I have towards the configuration
side is whether we might add iommu driver specific options to the
groups. For instance on x86 where we typically have B:D.F granularity,
should we have an option
I am in favour of /dev/vfio/$GROUP. If multiple devices should be
assigned to a guest, there can also be an ioctl to bind a group to an
address-space of another group (certainly needs some care to not allow
that both groups belong to different processes).
Btw, a problem we havn't talked
I wouldn't use uiommu for that.
Any particular reason besides saving a file descriptor?
We use it today, and it seems like a cleaner API than what you propose
changing it to.
Well for one, we are back to square one vs. grouping constraints.
.../...
If we in singleton-group land were
On Mon, Aug 22, 2011 at 09:22:41AM -0500, Timur Tabi wrote:
of_parse_phandle increments the reference count of np, so this should be
decremented before trying the next possibility.
Since we don't actually use np, we can decrement the reference count
immediately.
Applied, thanks.
On Mon, Aug 22, 2011 at 09:22:41AM -0500, Timur Tabi wrote:
of_parse_phandle increments the reference count of np, so this should be
decremented before trying the next possibility.
Since we don't actually use np, we can decrement the reference count
immediately.
Applied, thanks.
On Sat, Aug 20, 2011 at 09:02:01AM +0200, Julia Lawall wrote:
From: Julia Lawall ju...@diku.dk
The first change is to add an of_node_put, since codec_np has previously
been allocated. The rest of the patch reorganizes the error handling code
so the only code executed is that which is
On 8/20/11 9:51 AM, Alex Williamson alex.william...@redhat.com wrote:
We had an extremely productive VFIO BoF on Monday. Here's my attempt to
capture the plan that I think we agreed to:
We need to address both the description and enforcement of device
groups. Groups are formed any time
On 8/22/11 1:49 PM, Benjamin Herrenschmidt b...@kernel.crashing.org
wrote:
On Mon, 2011-08-22 at 13:29 -0700, aafabbri wrote:
Each device fd would then support a
similar set of ioctls and mapping (mmio/pio/config) interface as current
vfio, except for the obvious domain and dma ioctls
On 8/22/11 2:49 PM, Benjamin Herrenschmidt b...@kernel.crashing.org
wrote:
I wouldn't use uiommu for that.
Any particular reason besides saving a file descriptor?
We use it today, and it seems like a cleaner API than what you propose
changing it to.
Well for one, we are back to
Hi Dave,
On Mon, 22 Aug 2011 11:30:32 +1000 Stephen Rothwell s...@canb.auug.org.au
wrote:
Here's what I am applying as a merge fixup to the net tree today so that
my ppc64_defconfig builds actually build more or less the same set of
drivers as before this rearrangement.
And this today:
Hi Dave,
On Tue, 23 Aug 2011 11:40:11 +1000 Stephen Rothwell s...@canb.auug.org.au
wrote:
On Mon, 22 Aug 2011 11:30:32 +1000 Stephen Rothwell s...@canb.auug.org.au
wrote:
Here's what I am applying as a merge fixup to the net tree today so that
my ppc64_defconfig builds actually build
From: Stephen Rothwell s...@canb.auug.org.au
Date: Tue, 23 Aug 2011 11:41:29 +1000
On Tue, 23 Aug 2011 11:40:11 +1000 Stephen Rothwell s...@canb.auug.org.au
wrote:
On Mon, 22 Aug 2011 11:30:32 +1000 Stephen Rothwell s...@canb.auug.org.au
wrote:
Here's what I am applying as a merge
On Mon, 2011-08-22 at 19:13 -0700, David Miller wrote:
From: Stephen Rothwell s...@canb.auug.org.au
Date: Tue, 23 Aug 2011 11:41:29 +1000
On Tue, 23 Aug 2011 11:40:11 +1000 Stephen Rothwell s...@canb.auug.org.au
wrote:
On Mon, 22 Aug 2011 11:30:32 +1000 Stephen Rothwell
On Mon, Aug 22, 2011 at 09:45:48AM -0600, Alex Williamson wrote:
On Mon, 2011-08-22 at 15:55 +1000, David Gibson wrote:
On Sat, Aug 20, 2011 at 09:51:39AM -0700, Alex Williamson wrote:
We had an extremely productive VFIO BoF on Monday. Here's my attempt to
capture the plan that I think
于 2011年08月23日 00:19, Scott Wood 写道:
On 08/22/2011 11:13 AM, Matthieu CASTET wrote:
Scott Wood a écrit :
To eliminate it we'd need to do an extra data transfer without reissuing
the command, which Shuo was unable to get to work.
That's weird because our controller seems quite flexible [1].
Hi,
[Added linux-kbuild@ to the Cc: list.]
On Mon, Aug 22, 2011 at 10:13 PM, David Miller da...@davemloft.net wrote:
From: Stephen Rothwell s...@canb.auug.org.au
Date: Tue, 23 Aug 2011 11:41:29 +1000
On Tue, 23 Aug 2011 11:40:11 +1000 Stephen Rothwell s...@canb.auug.org.au
wrote:
On Mon,
From: Arnaud Lacombe lacom...@gmail.com
Date: Mon, 22 Aug 2011 23:50:02 -0400
Are you implying we need some kind of way to migrate config ?
The issue is that the dependencies for every single ethernet driver
have changed. Some dependencies have been dropped (f.e. NETDEV_1
and some have
On Fri, Aug 19, 2011 at 01:21:36PM +0530, K.Prasad wrote:
PPC_PTRACE_GETHWDBGINFO, PPC_PTRACE_SETHWDEBUG and PPC_PTRACE_DELHWDEBUG are
PowerPC specific ptrace flags that use the watchpoint register. While they are
targeted primarily towards BookE users, user-space applications such as GDB
have
On Fri, Aug 19, 2011 at 01:23:38PM +0530, K.Prasad wrote:
While PPC_PTRACE_SETHWDEBUG ptrace flag in PowerPC accepts
PPC_BREAKPOINT_MODE_EXACT mode of breakpoint, the same is not intimated to the
user-space debuggers (like GDB) who may want to use it. Hence we introduce a
new
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