On 2018/05/25 2:45, Mike Kravetz wrote:
[...]
>> THP does not guarantee to use the Huge Page, but may use the normal page.
>
> Note. You do not want to use THP because "THP does not guarantee".
[...]
>> One of the answers I have reached is to use HugeTLBfs by overcommitting
>> without creating a
On 2018/05/24 22:24, Michal Hocko wrote
[...]> I do not see anything like that. adjust_pool_surplus is simply and
> accounting thing. At least the last time I've checked. Maybe your
> patchset handles that?
As you said, my patch did not consider handling when manipulating the
pool. And even if tha
On Thu, May 24, 2018 at 09:41:08AM +0200, Jesper Dangaard Brouer wrote:
> On Wed, 23 May 2018 15:02:45 -0700
> Alexei Starovoitov wrote:
>
> > On Wed, May 23, 2018 at 02:18:19PM +0200, Eugene Syromiatnikov wrote:
> > > Some BPF sysctl knobs affect the loading of BPF programs, and during
> > > sys
When specifying PCI devices on the kernel command line using a
BDF, the bus numbers can change when adding or replacing a device,
changing motherboard firmware, or applying kernel parameters like
pci=assign-buses. When this happens, it is usually undesirable to
apply whatever command line tweak to
Hi,
As discussed in our PCI P2PDMA series, we'd like to add a kernel
parameter for selectively disabling ACS redirection for select
bridges. Seeing this turned out to be a small series in itself, we've
decided to send this separately from the P2P work.
This series generalizes the code already don
In order to support P2P traffic on a segment of the PCI hierarchy,
we must be able to disable the ACS redirect bits for select
PCI bridges. The bridges must be selected before the devices are
discovered by the kernel and the IOMMU groups created. Therefore,
a kernel command line parameter is create
Separate out the code to match a PCI device with a string (typically
originating from a kernel parameter) from the
pci_specified_resource_alignment() function into its own helper
function.
While we are at it, this change fixes the kernel style of the function
(fixing a number of long lines and ext
On 05/24/2018 11:43 AM, Peter Zijlstra wrote:
> On Thu, May 17, 2018 at 04:55:42PM -0400, Waiman Long wrote:
>> The sched.load_balance flag is needed to enable CPU isolation similar to
>> what can be done with the "isolcpus" kernel boot parameter. Its value
>> can only be changed in a scheduling do
On 05/24/2018 11:41 AM, Peter Zijlstra wrote:
> On Thu, May 17, 2018 at 04:55:41PM -0400, Waiman Long wrote:
>> A new cpuset.sched.domain boolean flag is added to cpuset v2. This new
>> flag indicates that the CPUs in the current cpuset should be treated
>> as a separate scheduling domain.
> The tr
On 05/23/2018 09:26 PM, TSUKADA Koutaro wrote:
>
> I do not know if it is really a strong use case, but I will explain my
> motive in detail. English is not my native language, so please pardon
> my poor English.
>
> I am one of the developers for software that managing the resource used
> from u
Hi Richard,
On Thu, May 24, 2018 at 11:33:14AM -0500, richard.g...@linux.intel.com wrote:
> From: Richard Gong
>
> Add Intel Stratix10 service layer to the device tree
>
> Signed-off-by: Richard Gong
> Signed-off-by: Alan Tull
Acked-by: Moritz Fischer
> ---
> v2: Change to put service layer
On Thu, May 24, 2018 at 11:33:13AM -0500, richard.g...@linux.intel.com wrote:
> From: Richard Gong
>
> Add a device tree binding for the Intel Stratix10 service layer driver
>
> Signed-off-by: Richard Gong
> Signed-off-by: Alan Tull
> Reviewed-by: Rob Herring
Acked-by: Moritz Fischer
> ---
>
From: Alan Tull
Add a Device Tree binding for the Intel Stratix10 SoC FPGA manager.
Signed-off-by: Alan Tull
Signed-off-by: Richard Gong
Reviewed-by: Rob Herring
---
v2: this patch is added in patch set version 2
v3: change to put fpga_mgr node under firmware/svc node
v4: s/fpga-mgr@0/fpga-mg
From: Richard Gong
Add Intel Stratix10 service layer to the device tree
Signed-off-by: Richard Gong
Signed-off-by: Alan Tull
---
v2: Change to put service layer driver node under the firmware node
Change compatible to "intel, stratix10-svc"
v3: No change
v4: s/service driver/stratix10 serv
From: Richard Gong
Add a device tree binding for the Intel Stratix10 service layer driver
Signed-off-by: Richard Gong
Signed-off-by: Alan Tull
Reviewed-by: Rob Herring
---
v2: Change to put service layer driver node under the firmware node
Change compatible to "intel, stratix10-svc"
v3: N
From: Richard Gong
Enable fpga framework, Stratix 10 SoC FPGA manager and Stratix10
Service Layer
Signed-off-by: Richard Gong
Signed-off-by: Alan Tull
---
v2: this patch is added in patch set version 2
v3: no change
v4: s/CONFIG_INTEL_SERVICE/CONFIG_STRATIX10_SERVICE/
add CONFIG_OF_FPGA_RE
From: Richard Gong
Some features of the Intel Stratix10 SoC require a level of privilege
higher than the kernel is granted. Such secure features include
FPGA programming. In terms of the ARMv8 architecture, the kernel runs
at Exception Level 1 (EL1), access to the features requires
Exception Leve
From: Alan Tull
Add driver for reconfiguring Intel Stratix10 SoC FPGA devices.
This driver communicates through the Intel Service Driver which
does communication with privileged hardware (that does the
FPGA programming) through a secure mailbox.
Signed-off-by: Alan Tull
Signed-off-by: Richard G
From: Richard Gong
Add new file stratix10-svc.rst
Add stratix10-svc.rst to driver-api/index.rst
Signed-off-by: Richard Gong
Signed-off-by: Alan Tull
---
v5: this patch is added in patch set version 5
---
Documentation/driver-api/index.rst | 1 +
Documentation/driver-api/stratix10-svc
From: Alan Tull
Add the Stratix10 FPGA manager and a FPGA region to the
device tree.
Signed-off-by: Alan Tull
Signed-off-by: Richard Gong
---
v2: this patch is added in patch set version 2
v3: change to put fpga_mgr node under firmware/svc node
v4: s/fpga-mgr@0/fpga-mgr/ to remove unit_address
From: Richard Gong
This is the 5th submission of Intel stratix10 service layer patches. Intel
Stratix10 FPGA manager, which is 1st Stratix10 service layer client, is
included in this submission.
Stratix10 service layer patches have been reviewed internally by Alan Tull
and other colleagues at In
Hi Ravi,
sorry for delay!
I am trying to recall what this code should do ;) At first glance, I do
not see any serious problem in this version... except it doesn't apply
to Linus's tree. just one question for now.
On 04/17, Ravi Bangoria wrote:
>
> @@ -941,6 +1091,9 @@ typedef bool (*filter_func_
On Thu, May 17, 2018 at 04:55:42PM -0400, Waiman Long wrote:
> The sched.load_balance flag is needed to enable CPU isolation similar to
> what can be done with the "isolcpus" kernel boot parameter. Its value
> can only be changed in a scheduling domain with no child cpusets. On
> a non-scheduling d
On Thu, May 17, 2018 at 04:55:41PM -0400, Waiman Long wrote:
> A new cpuset.sched.domain boolean flag is added to cpuset v2. This new
> flag indicates that the CPUs in the current cpuset should be treated
> as a separate scheduling domain.
The traditional name for this is a partition.
>
On 05/24/2018 11:16 AM, Juri Lelli wrote:
> On 24/05/18 11:09, Waiman Long wrote:
>> On 05/24/2018 10:36 AM, Juri Lelli wrote:
>>> On 17/05/18 16:55, Waiman Long wrote:
>>>
>>> [...]
>>>
+ A parent cgroup cannot distribute all its CPUs to child
+ scheduling domain cgroups unless its loa
On 24/05/18 11:09, Waiman Long wrote:
> On 05/24/2018 10:36 AM, Juri Lelli wrote:
> > On 17/05/18 16:55, Waiman Long wrote:
> >
> > [...]
> >
> >> + A parent cgroup cannot distribute all its CPUs to child
> >> + scheduling domain cgroups unless its load balancing flag is
> >> + turned off.
> >>
On 05/24/2018 10:36 AM, Juri Lelli wrote:
> On 17/05/18 16:55, Waiman Long wrote:
>
> [...]
>
>> +A parent cgroup cannot distribute all its CPUs to child
>> +scheduling domain cgroups unless its load balancing flag is
>> +turned off.
>> +
>> + cpuset.sched.load_balance
>> +A read-w
On 17/05/18 16:55, Waiman Long wrote:
[...]
> + A parent cgroup cannot distribute all its CPUs to child
> + scheduling domain cgroups unless its load balancing flag is
> + turned off.
> +
> + cpuset.sched.load_balance
> + A read-write single value file which exists on non-root
>
On Thu 24-05-18 21:58:49, TSUKADA Koutaro wrote:
> On 2018/05/24 17:20, Michal Hocko wrote:
> > On Thu 24-05-18 13:39:59, TSUKADA Koutaro wrote:
> >> On 2018/05/23 3:54, Michal Hocko wrote:
> > [...]
> >>> I am also quite confused why you keep distinguishing surplus hugetlb
> >>> pages from regular
On 2018-05-07 17:52:16 [+0200], To Tejun Heo wrote:
> On 2018-05-07 08:49:08 [-0700], Tejun Heo wrote:
> > Hello, Sebastian.
Hi Tejun,
> > On Fri, May 04, 2018 at 05:06:20PM +0200, Sebastian Andrzej Siewior wrote:
> > > ata_sff_data_xfer_noirq() is invoked via the ->sff_data_xfer hook. The
> > > l
On 2018/05/24 17:20, Michal Hocko wrote:
> On Thu 24-05-18 13:39:59, TSUKADA Koutaro wrote:
>> On 2018/05/23 3:54, Michal Hocko wrote:
> [...]
>>> I am also quite confused why you keep distinguishing surplus hugetlb
>>> pages from regular preallocated ones. Being a surplus page is an
>>> implementa
Yury & Pavel,
> On 24 May 2018, at 14:15, Yury Norov wrote:
>
> Hi Pavel,
>
> On Wed, May 23, 2018 at 04:06:20PM +0200, Pavel Machek wrote:
>> On Wed 2018-05-16 11:18:52, Yury Norov wrote:
>>> Based on Andrew Pinski's patch-series.
>>>
>>> Signed-off-by: Yury Norov
>>
>> So Andrew's signoff
Hi Pavel,
On Wed, May 23, 2018 at 04:06:20PM +0200, Pavel Machek wrote:
> On Wed 2018-05-16 11:18:52, Yury Norov wrote:
> > Based on Andrew Pinski's patch-series.
> >
> > Signed-off-by: Yury Norov
>
> So Andrew's signoff should be here?
Yes it should, but it lost since v4. I'll restore it.
>
On 24/05/18 10:04, Patrick Bellasi wrote:
[...]
> From 84bb8137ce79f74849d97e30871cf67d06d8d682 Mon Sep 17 00:00:00 2001
> From: Patrick Bellasi
> Date: Wed, 23 May 2018 16:33:06 +0100
> Subject: [PATCH 1/1] cgroup/cpuset: disable sched domain rebuild when not
> required
>
> The generate_sched
On 17/05/18 16:55, Waiman Long wrote:
[...]
> @@ -849,7 +860,12 @@ static void rebuild_sched_domains_locked(void)
>* passing doms with offlined cpu to partition_sched_domains().
>* Anyways, hotplug work item will rebuild sched domains.
>*/
> - if (!cpumask_equal(top_cp
On 23-May 16:18, Waiman Long wrote:
> On 05/23/2018 01:34 PM, Patrick Bellasi wrote:
> > Hi Waiman,
> >
> > On 17-May 16:55, Waiman Long wrote:
> >
> > [...]
> >
> >> @@ -672,13 +672,14 @@ static int generate_sched_domains(cpumask_var_t
> >> **domains,
> >>int ndoms = 0; /* number of
On Thu 24-05-18 13:26:12, TSUKADA Koutaro wrote:
[...]
> I do not know if it is really a strong use case, but I will explain my
> motive in detail. English is not my native language, so please pardon
> my poor English.
>
> I am one of the developers for software that managing the resource used
> f
On Thu 24-05-18 13:39:59, TSUKADA Koutaro wrote:
> On 2018/05/23 3:54, Michal Hocko wrote:
[...]
> > I am also quite confused why you keep distinguishing surplus hugetlb
> > pages from regular preallocated ones. Being a surplus page is an
> > implementation detail that we use for an internal accoun
On Wed, 23 May 2018 15:02:45 -0700
Alexei Starovoitov wrote:
> On Wed, May 23, 2018 at 02:18:19PM +0200, Eugene Syromiatnikov wrote:
> > Some BPF sysctl knobs affect the loading of BPF programs, and during
> > system boot/init stages these sysctls are not yet configured.
> > A concrete example is
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