(2012/10/17 15:23), Takao Indoh wrote:
These patches reset PCIe devices at boot time to address DMA problem on
kdump with iommu. When reset_devices is specified, a hot reset is
triggered on each PCIe root port and downstream port to reset its
downstream endpoint.
Background:
A kdump problem
...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
a DMI quirk for a PCIe switch? pci-quirk maybe? there is a hook
in per-device pci reset code path, which could be setup for such
a case.
Yep, I think early-quirk is better.
Thanks,
Takao Indoh
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To unsubscribe
(2012/09/15 0:48), Vivek Goyal wrote:
On Wed, Sep 12, 2012 at 06:00:55PM +0900, Takao Indoh wrote:
(2012/09/11 23:43), Vivek Goyal wrote:
On Tue, Sep 11, 2012 at 07:32:35PM +0900, Takao Indoh wrote:
[..]
I'll post new patch which clears bus master bit and resets devices in
second kernel
(2012/10/16 13:23), Takao Indoh wrote:
(2012/10/16 3:36), Yinghai Lu wrote:
On Mon, Oct 15, 2012 at 12:00 AM, Takao Indoh
indou.ta...@jp.fujitsu.com wrote:
This patch resets PCIe devices at boot time by hot reset when
reset_devices is specified.
how about pci devices that domain_nr
(2012/10/19 0:32), Khalid Aziz wrote:
On Wed, 2012-10-17 at 15:23 +0900, Takao Indoh wrote:
This patch resets PCIe devices at boot time by hot reset when
reset_devices is specified.
Signed-off-by: Takao Indoh indou.ta...@jp.fujitsu.com
---
arch/x86/include/asm/pci-direct.h |1
arch
(2012/10/03 22:23), Don Dutile wrote:
On 10/02/2012 03:49 AM, Takao Indoh wrote:
These patches reset PCIe devices at boot time to address DMA problem on
kdump with iommu. When reset_devices is specified, a hot reset is
triggered on each PCIe root port and downstream port to reset its
downstream
(2012/10/10 1:05), Don Dutile wrote:
On 10/09/2012 05:03 AM, Takao Indoh wrote:
(2012/10/03 22:23), Don Dutile wrote:
On 10/02/2012 03:49 AM, Takao Indoh wrote:
These patches reset PCIe devices at boot time to address DMA problem on
kdump with iommu. When reset_devices is specified, a hot
in setup_arch() because reset need to be done before
interrupt remapping is initialized.
https://lkml.org/lkml/2012/10/2/54
v1:
Add fixup_final quirk to reset PCIe devices
https://lkml.org/lkml/2012/8/3/160
Thanks,
Takao Indoh
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This patch resets PCIe devices at boot time by hot reset when
reset_devices is specified.
Signed-off-by: Takao Indoh indou.ta...@jp.fujitsu.com
---
arch/x86/include/asm/pci-direct.h |1
arch/x86/kernel/setup.c |3
arch/x86/pci/early.c | 299
. This patch fix this problem.
Signed-off-by: Takao Indoh indou.ta...@jp.fujitsu.com
---
arch/x86/pci/common.c |4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 720e973..2bb7ecc 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86
(2012/10/11 5:08), Khalid Aziz wrote:
Please see comments inline:
On Wed, 2012-10-10 at 16:51 +0900, Takao Indoh wrote:
This patch resets PCIe devices at boot time by hot reset when
reset_devices is specified.
Signed-off-by: Takao Indoh indou.ta...@jp.fujitsu.com
---
arch/x86/include/asm
(2012/10/12 2:28), Khalid Aziz wrote:
On Thu, 2012-10-11 at 15:16 +0900, Takao Indoh wrote:
(2012/10/11 5:08), Khalid Aziz wrote:
.
+static void __init do_reset(u8 bus, u8 slot, u8 func)
+{
+ u16 ctrl;
+
+ printk(KERN_INFO pci :%02x:%02x.%d reset\n, bus, slot, func
From: Yinghai Lu ying...@kernel.org
So we can pass pci_dev *dev to reuse some generic pci functions.
Signed-off-by: Yinghai Lu ying...@kernel.org
Signed-off-by: Takao Indoh indou.ta...@jp.fujitsu.com
---
arch/x86/include/asm/pci-direct.h |2 +
arch/x86/pci/early.c | 75
Define the maximum number of PCI function so that PCI functions can be
enumerated without using 8.
Signed-off-by: Takao Indoh indou.ta...@jp.fujitsu.com
---
include/linux/pci.h |2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/include/linux/pci.h b/include/linux/pci.h
Change reset_devices from __setup to early_param so this parameter is
available at early stage.
Signed-off-by: Takao Indoh indou.ta...@jp.fujitsu.com
---
init/main.c |4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/init/main.c b/init/main.c
index e33e09d..f2b24cb
devices by hot reset and its DMA is stopped when reset_devices is
specified.
Signed-off-by: Takao Indoh indou.ta...@jp.fujitsu.com
---
arch/x86/include/asm/pci-direct.h |1 +
arch/x86/kernel/setup.c |3 +
arch/x86/pci/early.c | 228
. This patch fix this problem.
Signed-off-by: Takao Indoh indou.ta...@jp.fujitsu.com
---
arch/x86/pci/common.c |4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 720e973..2bb7ecc 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86
before
interrupt remapping is initialized.
https://lkml.org/lkml/2012/10/2/54
v1:
Add fixup_final quirk to reset PCIe devices
https://lkml.org/lkml/2012/8/3/160
Takao Indoh (4):
PCI: Define the maximum number of PCI function
Make reset_devices available at early stage
x86, pci: Reset PCIe
(2012/11/13 19:01), Andrew Murray wrote:
Hello,
Some comments inline...
On 13 November 2012 09:07, Takao Indoh indou.ta...@jp.fujitsu.com wrote:
From: Yinghai Lu ying...@kernel.org
So we can pass pci_dev *dev to reuse some generic pci functions.
Signed-off-by: Yinghai Lu ying...@kernel.org
to be done before
interrupt remapping is initialized.
https://lkml.org/lkml/2012/10/2/54
v1:
Add fixup_final quirk to reset PCIe devices
https://lkml.org/lkml/2012/8/3/160
Thanks,
Takao Indoh
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the body of a message to majord
This patch resets PCIe devices at boot time by hot reset when
reset_devices is specified.
Signed-off-by: Takao Indoh indou.ta...@jp.fujitsu.com
---
arch/x86/include/asm/pci-direct.h |1
arch/x86/kernel/setup.c |3
arch/x86/pci/early.c | 344
. This patch fix this problem.
Signed-off-by: Takao Indoh indou.ta...@jp.fujitsu.com
---
arch/x86/pci/common.c |4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 720e973..2bb7ecc 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86
(2012/10/16 3:36), Yinghai Lu wrote:
On Mon, Oct 15, 2012 at 12:00 AM, Takao Indoh
indou.ta...@jp.fujitsu.com wrote:
This patch resets PCIe devices at boot time by hot reset when
reset_devices is specified.
how about pci devices that domain_nr is not zero ?
This patch does not support
(2012/10/16 2:17), Khalid Aziz wrote:
On Mon, 2012-10-15 at 16:00 +0900, Takao Indoh wrote:
This patch resets PCIe devices at boot time by hot reset when
reset_devices is specified.
Signed-off-by: Takao Indoh indou.ta...@jp.fujitsu.com
---
arch/x86/include/asm/pci-direct.h |1
arch
fixup_final quirk to reset PCIe devices
https://lkml.org/lkml/2012/8/3/160
Thanks,
Takao Indoh
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More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read
. This patch fix this problem.
Signed-off-by: Takao Indoh indou.ta...@jp.fujitsu.com
---
arch/x86/pci/common.c |4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 720e973..2bb7ecc 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86
This patch resets PCIe devices at boot time by hot reset when
reset_devices is specified.
Signed-off-by: Takao Indoh indou.ta...@jp.fujitsu.com
---
arch/x86/include/asm/pci-direct.h |1
arch/x86/kernel/setup.c |3
arch/x86/pci/early.c | 353
gets merged.
Thanks,
Takao Indoh
(2012/06/12 14:21), Cong Wang wrote:
From: Cong Wang xiyou.wangc...@gmail.com
This reverts the following commit:
commit 8548c84da2f47e71bbbe300f55edb768492575f7
Author: Takashi Iwai ti...@suse.de
Date: Sun Oct 23 23:19:12 2011 +0200
(2013/04/10 13:47), Takao Indoh wrote:
(2013/04/05 20:06), Joerg Roedel wrote:
On Wed, Apr 03, 2013 at 09:24:39AM +0100, David Woodhouse wrote:
On Wed, 2013-04-03 at 16:11 +0900, Takao Indoh wrote:
Yeah, you are right. I forgot such a case.
If you disable translation and there's some device
(2013/04/15 19:18), Joerg Roedel wrote:
On Mon, Apr 15, 2013 at 06:00:13PM +0900, Takao Indoh wrote:
On DMAR initialization during kdump boot, do you guys agree to change
order like this?
Current order:
(1) Disable translation
(2) PCI initialization
(3) Make pgtable and enable translation
above code and fix your patch like this, you need
additinal fix to set iommu-gcmd flag sinse gcmd is always zero here.
See first hunk of this patch.
https://lkml.org/lkml/2013/3/20/707
Thanks,
Takao Indoh
Signed-off-by: Wei Hu w...@aristanetworks.com
---
drivers/iommu/intel-iommu.c |6
(2013/04/22 15:50), Wei Hu wrote:
On Sun, Apr 21, 2013 at 10:31 PM, Takao Indoh
indou.ta...@jp.fujitsu.com wrote:
(2013/04/20 15:58), Wei Hu wrote:
On a VT-d capable machine Linux will enable IOMMU by default. If it
then kexec's a second kernel with intel_iommu=off, this second kernel
(2013/04/03 17:24), David Woodhouse wrote:
On Wed, 2013-04-03 at 16:11 +0900, Takao Indoh wrote:
(2013/04/02 23:05), Joerg Roedel wrote:
On Mon, Apr 01, 2013 at 02:45:18PM +0900, Takao Indoh wrote:
Current flow on kdump boot
enable_IR
intel_enable_irq_remapping
(2013/04/04 23:24), David Woodhouse wrote:
On Thu, 2013-04-04 at 14:48 +0900, Takao Indoh wrote:
- DMAR fault messages floods and second kernel does not boot. Recently I
saw similar report. https://lkml.org/lkml/2013/3/8/120
Right. So the fix for that is to make the subsequent errors
(2013/04/05 20:06), Joerg Roedel wrote:
On Wed, Apr 03, 2013 at 09:24:39AM +0100, David Woodhouse wrote:
On Wed, 2013-04-03 at 16:11 +0900, Takao Indoh wrote:
Yeah, you are right. I forgot such a case.
If you disable translation and there's some device still doing DMA, it's
going to scribble
(2013/03/27 19:31), Joerg Roedel wrote:
On Wed, Mar 27, 2013 at 02:02:44PM +0900, Takao Indoh wrote:
The root cause of this problem is mismatch between iommu-gcmd and
global command register in the case of kdump. At boot time, initial
value of iommu-gcmd is zero as I wrote above, but actual
(2013/04/02 23:05), Joerg Roedel wrote:
On Mon, Apr 01, 2013 at 02:45:18PM +0900, Takao Indoh wrote:
Current flow on kdump boot
enable_IR
intel_enable_irq_remapping
iommu_disable_irq_remapping == IRES/QIES/TES disabled here
dmar_disable_qi == do nothing
() to disable DMAR
before initializing it if already enabled.
Signed-off-by: Takao Indoh indou.ta...@jp.fujitsu.com
---
drivers/iommu/dmar.c| 11 ++-
drivers/iommu/intel-iommu.c | 12
2 files changed, 22 insertions(+), 1 deletions(-)
diff --git a/drivers/iommu/dmar.c b
(2013/03/26 23:46), Joerg Roedel wrote:
On Thu, Mar 21, 2013 at 10:32:36AM +0900, Takao Indoh wrote:
In this function, clearing IRE bit in iommu-gcmd and writing it to
global command register. But initial value of iommu-gcmd is zero, so
this writel means clearing all bits in global command
[2.213618] dmar: DRHD: handling fault status reg 3
[..]
This is the problem I'm working on.
https://lkml.org/lkml/2012/11/26/814
Thansk,
Takao Indoh
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More majordomo
(2013/01/23 9:47), Thomas Renninger wrote:
On Monday, January 21, 2013 10:11:04 AM Takao Indoh wrote:
(2013/01/08 4:09), Thomas Renninger wrote:
...
I tried the provided patches first on 2.6.32, then I verfied with 3.8-rc2
and in both cases the disk is not detected anymore in
reset_devices
(2013/03/05 7:00), Don Dutile wrote:
On 03/03/2013 07:56 PM, Takao Indoh wrote:
(2013/01/23 9:47), Thomas Renninger wrote:
On Monday, January 21, 2013 10:11:04 AM Takao Indoh wrote:
(2013/01/08 4:09), Thomas Renninger wrote:
...
I tried the provided patches first on 2.6.32, then I verfied
(2013/01/29 10:14), Thomas Renninger wrote:
On Thursday, January 24, 2013 09:23:14 AM Takao Indoh wrote:
(2013/01/23 9:47), Thomas Renninger wrote:
On Monday, January 21, 2013 10:11:04 AM Takao Indoh wrote:
(2013/01/08 4:09), Thomas Renninger wrote:
...
I tried the provided patches first
(2013/01/08 4:09), Thomas Renninger wrote:
On Friday, December 21, 2012 08:19:05 AM Yinghai Lu wrote:
On Fri, Nov 30, 2012 at 7:49 AM, MUNEDA Takahiro
muneda.takah...@jp.fujitsu.com wrote:
On Tue, 27 Nov 2012 09:42:20 +0900 (JST),
Takao Indoh indou.ta...@jp.fujitsu.com wrote:
These patches
(2013/01/23 9:47), Thomas Renninger wrote:
On Monday, January 21, 2013 10:11:04 AM Takao Indoh wrote:
(2013/01/08 4:09), Thomas Renninger wrote:
...
I tried the provided patches first on 2.6.32, then I verfied with 3.8-rc2
and in both cases the disk is not detected anymore in
reset_devices
(2012/09/10 11:34), Kaneshige, Kenji wrote:
-Original Message-
From: linux-pci-ow...@vger.kernel.org
[mailto:linux-pci-ow...@vger.kernel.org] On Behalf Of Takao Indoh
Sent: Wednesday, September 05, 2012 8:10 PM
To: vgo...@redhat.com
Cc: ke...@lists.infradead.org; linux-kernel
(2012/09/10 23:36), Vivek Goyal wrote:
On Wed, Sep 05, 2012 at 08:09:58PM +0900, Takao Indoh wrote:
(2012/08/07 5:39), Vivek Goyal wrote:
On Mon, Aug 06, 2012 at 01:30:47PM +0900, Takao Indoh wrote:
Hi Vivek,
(2012/08/03 20:46), Vivek Goyal wrote:
On Fri, Aug 03, 2012 at 08:24:31PM +0900
to disable this function on
such a machine.
Wouldn't a DMI quirk be better for this? That way the second kernel
internally would know not to do this.
That sounds good. I'll try it, thanks.
Thanks,
Takao Indoh
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(2012/09/11 23:43), Vivek Goyal wrote:
On Tue, Sep 11, 2012 at 07:32:35PM +0900, Takao Indoh wrote:
[..]
I'll post new patch which clears bus master bit and resets devices in
second kernel.
As to the boot parameter to enable this function, you suggested using
reset_devices. I found
(2012/08/07 5:39), Vivek Goyal wrote:
On Mon, Aug 06, 2012 at 01:30:47PM +0900, Takao Indoh wrote:
Hi Vivek,
(2012/08/03 20:46), Vivek Goyal wrote:
On Fri, Aug 03, 2012 at 08:24:31PM +0900, Takao Indoh wrote:
Hi all,
This patch adds kernel parameter reset_pcie_devices which resets PCIe
(2012/08/07 5:39), Vivek Goyal wrote:
On Mon, Aug 06, 2012 at 01:30:47PM +0900, Takao Indoh wrote:
Hi Vivek,
(2012/08/03 20:46), Vivek Goyal wrote:
On Fri, Aug 03, 2012 at 08:24:31PM +0900, Takao Indoh wrote:
Hi all,
This patch adds kernel parameter reset_pcie_devices which resets PCIe
out when the link between the port and VGA controller was
reset. So this patch does not reset the port whose child endpoint is VGA
device.
Any comments would be appreciated.
Signed-off-by: Takao Indoh indou.ta...@jp.fujitsu.com
---
Documentation/kernel-parameters.txt |4 +
drivers/pci/quirks.c
Hi Vivek,
(2012/08/03 20:46), Vivek Goyal wrote:
On Fri, Aug 03, 2012 at 08:24:31PM +0900, Takao Indoh wrote:
Hi all,
This patch adds kernel parameter reset_pcie_devices which resets PCIe
devices at boot time to address DMA problem on kdump with iommu. When
this parameter is specified
Hi Don,
(2012/08/06 13:09), Don Dutile wrote:
On 08/03/2012 07:24 AM, Takao Indoh wrote:
Hi all,
This patch adds kernel parameter reset_pcie_devices which resets PCIe
devices at boot time to address DMA problem on kdump with iommu. When
this parameter is specified, a hot reset is triggered
(2012/07/23 19:00), Dave Young wrote:
On 07/17/2012 11:15 AM, Takao Indoh wrote:
Hi Cong,
When I tested kdump with 3.5.0-rc6 kernel, I found a problem of kdump
kernel's panic in find_early_table_space().
init_memory_mapping: [mem 0x-0x36ffafff]
Kernel panic - not syncing: Cannot
(2012/07/25 0:55), Cong Wang wrote:
On Mon, 2012-07-23 at 20:22 +0900, Takao Indoh wrote:
(2012/07/23 19:00), Dave Young wrote:
On 07/17/2012 11:15 AM, Takao Indoh wrote:
Hi Cong,
When I tested kdump with 3.5.0-rc6 kernel, I found a problem of kdump
kernel's panic in find_early_table_space
that
they are called only once.
https://lkml.org/lkml/2012/10/10/57
v2:
Reset devices in setup_arch() because reset need to be done before
interrupt remapping is initialized.
https://lkml.org/lkml/2012/10/2/54
v1:
Add fixup_final quirk to reset PCIe devices
https://lkml.org/lkml/2012/8/3/160
Takao Indoh (5
So we can pass pci_dev *dev to reuse some generic pci functions.
The original patch was written by Yinghai Lu.
Signed-off-by: Takao Indoh indou.ta...@jp.fujitsu.com
---
arch/x86/include/asm/pci-direct.h |2 +
arch/x86/pci/early.c | 74 +
2
Define the maximum number of PCI function so that PCI functions can be
enumerated without using 8.
Signed-off-by: Takao Indoh indou.ta...@jp.fujitsu.com
---
include/linux/pci.h |2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/include/linux/pci.h b/include/linux/pci.h
Change reset_devices from __setup to early_param so this parameter is
available at early stage.
Signed-off-by: Takao Indoh indou.ta...@jp.fujitsu.com
---
init/main.c |4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/init/main.c b/init/main.c
index e33e09d..f2b24cb
during boot to stop its DMA.
Signed-off-by: Takao Indoh indou.ta...@jp.fujitsu.com
---
arch/x86/include/asm/pci-direct.h |1 +
arch/x86/kernel/setup.c |3 +
arch/x86/pci/early.c | 241 +
3 files changed, 245 insertions(+), 0 deletions
. This patch fix this problem.
Signed-off-by: Takao Indoh indou.ta...@jp.fujitsu.com
---
arch/x86/pci/common.c |4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 720e973..2bb7ecc 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86
.
Thanks,
Takao Indoh
2012/11/27 Takao Indoh indou.ta...@jp.fujitsu.com
mailto:indou.ta...@jp.fujitsu.com
These patches reset PCIe devices at boot time to address DMA problem on
kdump with iommu. When reset_devices is specified, a hot reset is
triggered on each PCIe root port
whose child endpoint is VGA device.
v2:
Reset devices in setup_arch() because reset need to be done before
interrupt remapping is initialized.
v1:
https://lkml.org/lkml/2012/8/3/160
Thanks,
Takao Indoh
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This patch resets PCIe devices at boot time by hot reset when
reset_devices is specified.
Signed-off-by: Takao Indoh indou.ta...@jp.fujitsu.com
---
arch/x86/include/asm/pci-direct.h |1
arch/x86/kernel/setup.c |3
arch/x86/pci/early.c | 302
. This patch fix this problem.
Signed-off-by: Takao Indoh indou.ta...@jp.fujitsu.com
---
arch/x86/pci/common.c |4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 720e973..2bb7ecc 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86
(2012/10/03 4:37), Andi Kleen wrote:
Takao Indoh indou.ta...@jp.fujitsu.com writes:
These patches reset PCIe devices at boot time to address DMA problem on
kdump with iommu. When reset_devices is specified, a hot reset is
triggered on each PCIe root port and downstream port to reset its
PCI(e) error handlers get active?)?
Or AER framework may be able to handle this. Actually it has a function
to reset endpoint when error is detected.
Thanks,
Takao Indoh
If this does not help the next step could be to stop DMAR error interrupt
handling or other iommu commands to keep
(2013/07/25 23:24), Vivek Goyal wrote:
On Wed, Jul 24, 2013 at 03:29:58PM +0900, Takao Indoh wrote:
Sorry for letting this discussion slide, I was busy on other works:-(
Anyway, the summary of previous discussion is:
- My patch adds new initcall(fs_initcall) to reset all PCIe endpoints
(2013/07/26 2:00), Bjorn Helgaas wrote:
On Wed, Jul 24, 2013 at 12:29 AM, Takao Indoh
indou.ta...@jp.fujitsu.com wrote:
Sorry for letting this discussion slide, I was busy on other works:-(
Anyway, the summary of previous discussion is:
- My patch adds new initcall(fs_initcall) to reset all
(2013/07/29 23:17), Bjorn Helgaas wrote:
On Sun, Jul 28, 2013 at 6:37 PM, Takao Indoh indou.ta...@jp.fujitsu.com
wrote:
(2013/07/26 2:00), Bjorn Helgaas wrote:
On Wed, Jul 24, 2013 at 12:29 AM, Takao Indoh
indou.ta...@jp.fujitsu.com wrote:
Sorry for letting this discussion slide, I was busy
, at last
kdump fails. This patch fixes this problem.
Signed-off-by: Takao Indoh indou.ta...@jp.fujitsu.com
NOTE:
To reset devices this patch uses bus reset interface introduced by
following commits in PCI next branch.
64e8674fbe6bc848333a9b7e19f8cc019dde9eab
5c32b35b004f5ef70dcf62bbc42b8bed1e50b471
back legacy
VGA mode after reset. It seems not to be easy:-(
Maybe this document is helpful to do this.
http://www.coreboot.org/images/2/2b/Vgabios.pdf
Thanks,
Takao Indoh
We have problems, if 1st kernel is in kms mode kdump kernel will have no
chance to switch back to VGA console. There's
(2013/09/09 18:07), David Woodhouse wrote:
On Wed, 2013-08-21 at 16:15 +0900, Takao Indoh wrote:
This causes problem on kdump. Devices are working in first kernel, and
after switching to second kernel and initializing IOMMU, many DMAR faults
occur and it causes problems like driver error
(2013/07/31 0:59), Bjorn Helgaas wrote:
On Tue, Jul 30, 2013 at 12:09 AM, Takao Indoh
indou.ta...@jp.fujitsu.com wrote:
(2013/07/29 23:17), Bjorn Helgaas wrote:
On Sun, Jul 28, 2013 at 6:37 PM, Takao Indoh indou.ta...@jp.fujitsu.com
wrote:
(2013/07/26 2:00), Bjorn Helgaas wrote:
My point
(2013/07/31 12:11), Alex Williamson wrote:
On Wed, 2013-07-31 at 09:35 +0900, Takao Indoh wrote:
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index e37fea6..c595997 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -3392,6 +3392,59 @@ int pci_reset_function(struct pci_dev *dev
(2013/08/01 6:23), Rafael J. Wysocki wrote:
On Wednesday, July 31, 2013 03:08:03 PM Bjorn Helgaas wrote:
[+cc Rafael, linux-acpi]
On Tue, Jul 30, 2013 at 6:35 PM, Takao Indoh indou.ta...@jp.fujitsu.com
wrote:
On x86, currently IOMMU initialization run *after* PCI enumeration, but
what you
, at
last kdump fails. This patch fixes this problem.
Changelog:
v2:
- Add CONTEXT_ENTRY_NR
v1:
https://lkml.org/lkml/2013/8/21/71
Signed-off-by: Takao Indoh indou.ta...@jp.fujitsu.com
---
drivers/iommu/intel-iommu.c | 56 ++-
1 files changed, 55 insertions
.
Ok, I'll wait for new patches!
Thanks,
Takao Indoh
Bill
-Original Message-
From: Takao Indoh [mailto:indou.ta...@jp.fujitsu.com]
Sent: Tuesday, November 12, 2013 12:45 AM
To: Sumner, William; bhelg...@google.com; alex.william...@redhat.com;
ddut...@redhat.com
Cc: linux
(2013/05/07 21:50), Don Dutile wrote:
On 05/07/2013 03:09 AM, Takao Indoh wrote:
Sorry for the delayed response.
(2013/04/30 23:54), Sumner, William wrote:
I have installed your original patch set (from last November) and tested
with three platforms, each with a different IO configuration
(2013/05/08 7:04), Alex Williamson wrote:
On Tue, 2013-05-07 at 16:10 -0400, Don Dutile wrote:
On 05/07/2013 12:39 PM, Alex Williamson wrote:
On Wed, 2013-04-24 at 13:58 +0900, Takao Indoh wrote:
This patch resets PCIe devices on boot to stop ongoing DMA. When
pci=pcie_reset_devices
(2013/04/26 3:01), Don Dutile wrote:
On 04/25/2013 01:11 AM, Takao Indoh wrote:
(2013/04/25 4:59), Don Dutile wrote:
On 04/24/2013 12:58 AM, Takao Indoh wrote:
This patch resets PCIe devices on boot to stop ongoing DMA. When
pci=pcie_reset_devices is specified, a hot reset is triggered
(2013/06/11 11:20), Bjorn Helgaas wrote:
On Fri, Jun 7, 2013 at 2:46 AM, Takao Indoh indou.ta...@jp.fujitsu.com
wrote:
(2013/06/07 13:14), Bjorn Helgaas wrote:
One thing I'm not sure about is that you are only resetting PCIe
devices, but I don't think the problem is actually specific
(2013/06/12 13:45), Bjorn Helgaas wrote:
[+cc Vivek, Haren; sorry I didn't think to add you earlier]
On Tue, Jun 11, 2013 at 12:08 AM, Takao Indoh
indou.ta...@jp.fujitsu.com wrote:
(2013/06/11 11:20), Bjorn Helgaas wrote:
I'm not sure you need to reset legacy devices (or non-PCI devices
sensitive in them. It'd be nice if they could
be made public if there's not.
I really appreciate your comments! I'll confirm I can make it public.
I would greatly appreciate being able to see the bugzillas relating to
this patch.
Thanks,
Takao Indoh
Thinking out of the box:
Much
(2013/06/13 12:41), Bjorn Helgaas wrote:
On Wed, Jun 12, 2013 at 8:44 PM, Takao Indoh indou.ta...@jp.fujitsu.com
wrote:
(2013/06/12 13:45), Bjorn Helgaas wrote:
[+cc Vivek, Haren; sorry I didn't think to add you earlier]
On Tue, Jun 11, 2013 at 12:08 AM, Takao Indoh
indou.ta
.
Thanks,
Takao Indoh
(2013/05/14 14:29), Takao Indoh wrote:
This patch resets PCIe devices on boot to stop ongoing DMA. When
pci=pcie_reset_endpoint_devices is specified, a hot reset is triggered
on each PCIe root port and downstream port to reset its downstream
endpoint.
Problem:
This patch
, so please pardon (and help me with) any silly
questions or assumptions below.
On Mon, May 13, 2013 at 11:29 PM, Takao Indoh
indou.ta...@jp.fujitsu.com wrote:
This patch resets PCIe devices on boot to stop ongoing DMA. When
pci=pcie_reset_endpoint_devices is specified, a hot reset
-by: Takao Indoh indou.ta...@jp.fujitsu.com
---
drivers/iommu/dmar.c| 11 ++-
drivers/iommu/intel-iommu.c | 15 +++
2 files changed, 25 insertions(+), 1 deletions(-)
diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c
index e5cdaf8..9f69352 100644
--- a/drivers
-by: Takao Indoh indou.ta...@jp.fujitsu.com
---
Documentation/kernel-parameters.txt |2 +
drivers/pci/pci.c | 103 +++
2 files changed, 105 insertions(+), 0 deletions(-)
diff --git a/Documentation/kernel-parameters.txt
b/Documentation/kernel
(2013/04/25 4:59), Don Dutile wrote:
On 04/24/2013 12:58 AM, Takao Indoh wrote:
This patch resets PCIe devices on boot to stop ongoing DMA. When
pci=pcie_reset_devices is specified, a hot reset is triggered on each
PCIe root port and downstream port to reset its downstream endpoint.
Problem
(2013/04/26 3:01), Don Dutile wrote:
On 04/25/2013 01:11 AM, Takao Indoh wrote:
(2013/04/25 4:59), Don Dutile wrote:
On 04/24/2013 12:58 AM, Takao Indoh wrote:
This patch resets PCIe devices on boot to stop ongoing DMA. When
pci=pcie_reset_devices is specified, a hot reset is triggered
, pcie_flr() is called in __pci_dev_reset() and
it returned true, but DMAR error occurred after its driver was loaded.
One of ideas is adding boot parameter so user can choose appropriate
method: just clearing bus master, FLR, hot-reset, etc.
Thanks,
Takao Indoh
Bill Sumner
-Original
Hi Bjorn,
Any comments, ack/nack?
Thanks,
Takao Indoh
(2013/05/15 7:04), Eric W. Biederman wrote:
Takao Indoh indou.ta...@jp.fujitsu.com writes:
This patch resets PCIe devices on boot to stop ongoing DMA. When
pci=pcie_reset_endpoint_devices is specified, a hot reset is triggered
on each
because
the monitor blacks out if VGA controller is reset.
Changelog:
v2:
- Read pci config before de-assert secondary bus reset to flush previous
write
- Change function/variable name
- Make a list of devices to be reset
v1:
https://patchwork.kernel.org/patch/2482291/
Signed-off-by: Takao Indoh
(2013/09/08 20:47), Baoquan He wrote:
Hi,
Patch is great and works on my HP-z420.
Thank you for your test!
There are several small concerns, please see inline comments.
On 08/21/13 at 04:15pm, Takao Indoh wrote:
This patch quiesces devices before disabling IOMMU on boot to stop
ongoing
(2013/09/09 13:28), Takao Indoh wrote:
BTW, what's the status of Alex's PCI patchset which this patch depends
on?
It is merged to Bjorn's tree, will be in v3.12.
This was wrong. Alex's patchset is already in Linus tree, v3.11.
Thanks,
Takao Indoh
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boot
parameter seems to be unpopular for maintainers. Any ideas?
Thanks,
Takao Indoh
(2013/06/14 11:11), Takao Indoh wrote:
(2013/06/13 12:41), Bjorn Helgaas wrote:
On Wed, Jun 12, 2013 at 8:44 PM, Takao Indoh indou.ta...@jp.fujitsu.com
wrote:
(2013/06/12 13:45), Bjorn Helgaas wrote:
[+cc
to rewrite its text at (5), but it fails
because it is already changed to RO at (2) by modules A. The ftrace
waring message is outputted.
I'm not familiar with ftrace/kprobe, so any comments/suggestions would
be appreciatd to fix this.
Thanks,
Takao Indoh
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it?
Yep, I tested using my reproducer and confirmed that this patch fixed
this issue, thanks!
Thanks,
Takao Indoh
In-review-off-by: Steven Rostedt rost...@goodmis.org
diff --git a/include/linux/module.h b/include/linux/module.h
index 5a50539..a1acabf 100644
--- a/include/linux/module.h
1 - 100 of 310 matches
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