On Wed, Apr 25, 2018 at 08:34:55AM +0200, Daniel Vetter wrote:
> On Wed, Apr 25, 2018 at 09:07:07AM +0300, Oleksandr Andrushchenko wrote:
> > On 04/24/2018 11:35 PM, Dongwon Kim wrote:
> > > Had a meeting with Daniel and talked about bringing out generic
> > > part of hyper-dmabuf to the userspace,
On 04/25, Andrey Grodzovsky wrote:
>
> here (drm_sched_entity_fini) is also a bad idea, but we still want to be
> able to exit immediately
> and not wait for GPU jobs completion when the reason for reaching this code
> is because of KILL
> signal to the user process who opened the device file.
Can
On 04/24/2018 12:30 PM, Eric W. Biederman wrote:
"Panariti, David" writes:
Andrey Grodzovsky writes:
Kind of dma_fence_wait_killable, except that we don't have such API
(maybe worth adding ?)
Depends on how many places it would be called, or think it might be called.
Can always factor o
Em Wed, 25 Apr 2018 17:58:25 +0200
Arnd Bergmann escreveu:
> On Wed, Apr 25, 2018 at 5:26 PM, Christoph Hellwig wrote:
> > On Wed, Apr 25, 2018 at 01:15:18PM +0200, Arnd Bergmann wrote:
> >> That thought had occurred to me as well. I removed the oldest ISDN
> >> drivers already some years ago,
On Wed, Apr 25, 2018 at 07:02:42PM +0200, Vlastimil Babka wrote:
> On 04/25/2018 06:48 PM, Roman Gushchin wrote:
> > On Wed, Apr 25, 2018 at 05:47:26PM +0200, Vlastimil Babka wrote:
> >> On 04/25/2018 02:52 PM, Roman Gushchin wrote:
> >>> On Wed, Apr 25, 2018 at 09:19:29AM +0530, Vijayanand Jitta w
From: Anders Roxell
Date: Wed, 25 Apr 2018 00:19:52 +0200
> Script in_netns.sh is a utility function and not its own test so it
> shouldn't be part of the TEST_PROGS. The in_netns.sh get used by
> run_afpackettests.
> To install in_netns.sh without being added to the main run_kselftest.sh
> scrip
Hi Russell,
(Woops, seems like I forgot to send the email below, while waiting for
a success report for my submission to your patch queue)
On Wed, Apr 11, 2018 at 12:19 AM, Russell King - ARM Linux
wrote:
> On Tue, Apr 10, 2018 at 03:21:42PM +0200, Geert Uytterhoeven wrote:
>> This patch series
On 04/25/2018 12:15 PM, Borislav Petkov wrote:
> On Wed, Apr 25, 2018 at 10:00:53AM -0500, Alex G. wrote:
>> Firmware-first.
>
> Ok, my guess was right.
>
>> We could probably use more of the native AER print functions, but that's
>> beyond the scope of this patch.
>
> No no, this does not bel
On Wed, Apr 25, 2018 at 06:49:06PM +0200, Stefan Potyra wrote:
> Additionally, prepare/enable the pll_clk before calling clk_get_rate()
> for the same reason.
I don't see this change in the code:
> struct clk *pll_clk = devm_clk_get(dev, "pll");
>
> - if (IS_ERR(pll_c
On Wed, Apr 25, 2018 at 6:45 AM, tip-bot for Thomas Gleixner
wrote:
>
> As stated in the pull request for the unification of CLOCK_MONOTONIC and
> CLOCK_BOOTTIME, it was clear that we might have to revert the change.
I'm ok with the revert., but I do want the revert message to talk
about *exactly
Greetings,
I have been sending patches out like:
$ git send-email --to=foo-l...@vger.kernel.org \
--cc-cmd='scripts/get_maintainer.pl -non -norolestats' \
*.patch
For some reason, when git sends the emails, it sends each patch both
directly to, and also cc's, everyone mentioned by get_mainta
On 04/25/18 08:16, Greg Kroah-Hartman wrote:
> On Tue, Apr 24, 2018 at 09:57:29PM +0200, Kirill Marinushkin wrote:
>> In the current implementation, vchi_instance is inited during the first
>> call of bcm2835_audio_open_connection(), and is never freed. It causes a
>> memory leak when the module `s
On Dienstag, 24. April 2018 15:18:46 CEST Luc Van Oostenryck wrote:
> The method ndo_start_xmit() is defined as returning an 'netdev_tx_t',
> which is a typedef for an enum type, but the implementation in this
> driver returns an 'int'.
>
> Fix this by returning 'netdev_tx_t' in this driver too.
>
This patch adds parallel display support for i.MX6DL Mamoj board
along with relevant backlight through pwm.
LCD power sequence is added by 'Michael Trimarchi'.
Signed-off-by: Simone CIANNI
Signed-off-by: Raffaele RECALCATI
Signed-off-by: Michael Trimarchi
Signed-off-by: Jagan Teki
---
arch/a
Add TI WL18XX Wifi for BTicino i.MX6DL board.
Signed-off-by: Simone CIANNI
Signed-off-by: Raffaele RECALCATI
Signed-off-by: Michael Trimarchi
Signed-off-by: Jagan Teki
---
arch/arm/boot/dts/imx6dl-mamoj.dts | 53 ++
1 file changed, 53 insertions(+)
diff --
This adds support for the Rocktech Display Ltd. RK070ER9427
800(RGB)x480 TFT LCD panel, which can be supported by the
simple panel driver.
Signed-off-by: Jagan Teki
---
.../display/panel/rocktech,rk070er9427.txt | 25
drivers/gpu/drm/panel/panel-simple.c |
On Wed, Apr 25, 2018 at 12:27:59PM -0500, Alex G. wrote:
> SURPRISE!!!
What does that mean? You've had too much coffee?
> It's coming (eventually). I'm trying to avoid pushing more than one
> series per week.
You better. Flooding people with patchsets won't get you very far.
--
Regards/Gruss,
From: Michael Trimarchi
Add USB host and device support for BTicino i.MX6DL Mamoj board.
Signed-off-by: Simone CIANNI
Signed-off-by: Raffaele RECALCATI
Signed-off-by: Michael Trimarchi
Signed-off-by: Jagan Teki
---
arch/arm/boot/dts/imx6dl-mamoj.dts | 27 +++
1 file
Display the license GPL NON/compatible string in bpftool
prog command, like:
# bpftool prog list
3: kprobe name func_begin tag 57cd311f2e27366b license GPL NON compatible
loaded_at Apr 25/11:20 uid 0
xlated 16B not jited memlock 4096B
# bpftool prog list
4: kprobe
On 4/25/2018 6:27 AM, Kishon Vijay Abraham I wrote:
Update mmc dt node to use sdhci-omap binding instead of omap_hsmmc
binding.
I've also updated keystone_defconfig to enable CONFIG_MMC_SDHCI_OMAP.
Everyone who use a custom .config should also enable
CONFIG_MMC_SDHCI_OMAP for MMC to work.
This
Adding gpl_compatible flag to struct bpf_prog_info
so it can be dumped via bpf_prog_get_info_by_fd and
displayed via bpftool progs dump.
Alexei noticed 4-byte hole in struct bpf_prog_info,
so we put the u32 flags field in there, and we can
keep adding bit fields in there without breaking
user spac
On 04/25/18 07:59, Alan Tull wrote:
> On Tue, Apr 24, 2018 at 3:56 PM, Frank Rowand wrote:
>> Hi Alan,
>>
>> On 04/23/18 15:38, Frank Rowand wrote:
>>> Hi Jan,
>>>
>>> + Alan Tull for fpga perspective
>>>
>>> On 04/22/18 03:30, Jan Kiszka wrote:
On 2018-04-11 07:42, Jan Kiszka wrote:
> On
hi,
sending the change to store and dump the license
info for loaded BPF programs. It's important for
us get the license info, when investigating on
screwed up machine.
v2 changes:
- dumping only the GPL compatible bool, without
storing the whole license string
Adding change to bpftool to d
Syncing the bpf.h uapi header with tools.
Signed-off-by: Jiri Olsa
---
tools/include/uapi/linux/bpf.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
index e6679393b687..da8801860c7d 100644
--- a/tools/include/uapi/linux/bpf.h
+
Nothing in the entire tree ever sets this, which means this is dead
code. Remove it.
Cc: Lee Jones
Cc: Daniel Thompson
Cc: Jingoo Han
Acked-by: Daniel Thompson
Signed-off-by: Daniel Vetter
---
drivers/video/backlight/generic_bl.c | 5 -
1 file changed, 5 deletions(-)
diff --git a/driver
Now that the 3 drivers using this are cleaned up we can also remove
this final bit of confusion of leaking driver internals into the
backlight power interface.
The backlight power interface itself is still a massive mess.
Cc: Lee Jones
Cc: Daniel Thompson
Cc: Jingoo Han
Acked-by: Daniel Thomps
For the same reasons we've added dri-devel for all fbdev patches: Most
of the actively developed drivers using this infrastructure are in
drivers/gpu/. It just makes sense to cross-post patches and keep
aligned. And total activity in the backlight subsystem is miniscule
compared to drm overall.
Cc
On Wed, Apr 25, 2018 at 03:41:59PM +0200, Greg KH wrote:
> On Wed, Apr 25, 2018 at 10:20:50PM +0900, DaeRyong Jeong wrote:
> > tty_insert_flip_string_fixed_flag() copies chars to the buffer indicated
> > by th->used and updates tb->used.
> > But tty_insert_flip_string_fixed_flag() can be executed c
On Wed, 2018-04-25 at 14:22 -0300, Mauro Carvalho Chehab wrote:
> Em Wed, 25 Apr 2018 17:58:25 +0200
> Arnd Bergmann escreveu:
>
> > On Wed, Apr 25, 2018 at 5:26 PM, Christoph Hellwig > rg> wrote:
> > > On Wed, Apr 25, 2018 at 01:15:18PM +0200, Arnd Bergmann wrote:
> > > > That thought had occ
Leaking driver internal tracking into the already massively confusing
backlight power tracking is really confusing.
Luckily we have already a drvdata structure, so fixing this is really
easy.
Cc: Lee Jones
Cc: Daniel Thompson
Cc: Jingoo Han
Cc: Thomas Petazzoni
Acked-by: Daniel Thompson
Sign
Leaking driver internal tracking into the already massively confusing
backlight power tracking is really confusing.
Stop that by allocating a tiny driver private data structure instead.
Cc: Lee Jones
Cc: Daniel Thompson
Cc: Jingoo Han
Acked-by: Daniel Thompson
Signed-off-by: Daniel Vetter
--
The backlight power state handling is supremely confusing. We have:
- props.power, using FB_BLANK_* defines
- props.fb_blank, using the same, but deprecated int favour of
props.state
- props.state, using the BL_CORE_* defines
- and finally a bunch of backlight drivers treat brightness == 0 as
o
On Wed, Apr 25, 2018 at 2:41 AM, Christoph Hellwig wrote:
> On Wed, Apr 25, 2018 at 02:24:36AM -0400, Alex Deucher wrote:
>> > It has a non-coherent transaction mode (which the chipset can opt to
>> > not implement and still flush), to make sure the AGP horror show
>> > doesn't happen again and GP
Hi Jagan,
On Wed, Apr 25, 2018 at 2:39 PM, Jagan Teki wrote:
> This adds support for the Rocktech Display Ltd. RK070ER9427
> 800(RGB)x480 TFT LCD panel, which can be supported by the
> simple panel driver.
>
> Signed-off-by: Jagan Teki
You missed to send this to the drm panel maintainers.
./sc
On 2018-04-25 18:27, Lorenzo Pieralisi wrote:
> On Tue, Apr 24, 2018 at 05:13:37PM +0200, Jan Kiszka wrote:
>> From: Jan Kiszka
>>
>> The only user of that function is of_pci_bus_find_domain_nr. Pure
>> cleanup.
>
> "The only user of pci_get_new_domain_nr() is of_pci_bus_find_domain_nr().
> Since
Hallo
Christoph Hellwig wrote:
On Wed, Apr 25, 2018 at 09:08:13AM +0200, Arnd Bergmann wrote:
That probably also means it can use dma_mmap_coherent instead of the
handcrafted remap_pfn_range loop and the PageReserved abuse.
I'd rather not touch that code. How about adding a comment about
the
On Tue, Apr 24, 2018 at 02:45:50PM -0700, Subhra Mazumdar wrote:
> So what you said makes sense in theory but is not borne out by real
> world results. This indicates that threads of these benchmarks care more
> about running immediately on any idle cpu rather than spending time to find
> fully idl
On Wed, 2018-04-25 at 13:06 +0200, Greg KH wrote:
> On Wed, Apr 25, 2018 at 01:44:20PM +0300, Jarkko Sakkinen wrote:
> > "tpm: add retry logic" caused merge conflicts so I picked couple of
> > other fixes in order to get it apply cleanly.
>
> Are these only needed in 4.16.y? Nothing earlier?
The
Hi Greg,
On Wed, Apr 25, 2018 at 6:06 PM, Greg Kroah-Hartman
wrote:
> On Tue, Apr 10, 2018 at 03:21:44PM +0200, Geert Uytterhoeven wrote:
>> The driver_override implementation is susceptible to a race condition
>> when different threads are reading vs storing a different driver
>> override. Add
On Wed, Apr 25, 2018 at 03:39:48PM +0100, Alan Cox wrote:
> On Wed, 25 Apr 2018 22:20:50 +0900
> DaeRyong Jeong wrote:
>
> > tty_insert_flip_string_fixed_flag() copies chars to the buffer indicated
> > by th->used and updates tb->used.
> > But tty_insert_flip_string_fixed_flag() can be executed c
On Tue, Apr 24, 2018 at 05:13:42PM +0200, Jan Kiszka wrote:
> From: Jan Kiszka
>
> Required when running over Jailhouse, and there is already a physical
> host controller that Jailhouse does not intercept and rather adds a
> virtual one. That is the case for the Tegra TK1, e.g.
>
> Signed-off-by
On Thu, Apr 19, 2018 at 08:29:01PM +0300, Kirill Tkhai wrote:
> tg_rt_schedulable() iterates over all child task groups,
> while tg_has_rt_tasks() iterates over all linked tasks.
> In case of systems with big number of tasks, this may
> take a lot of time.
So you're actually using RT cgroups?
Som
On Wed, Apr 25, 2018 at 01:00:09AM -0400, Mimi Zohar wrote:
> On Tue, 2018-04-24 at 23:42 +, Luis R. Rodriguez wrote:
> > On Tue, Apr 24, 2018 at 12:07:01PM -0400, Mimi Zohar wrote:
> > > On Tue, 2018-04-24 at 17:09 +0200, Hans de Goede wrote:
> > > > On 23-04-18 23:11, Luis R. Rodriguez wrote:
Hi,
Dne sreda, 25. april 2018 ob 12:34:09 CEST je Jagan Teki napisal(a):
> On Tue, Apr 24, 2018 at 9:02 PM, Jernej Škrabec
wrote:
> > Hi,
> >
> > Dne torek, 24. april 2018 ob 15:34:12 CEST je Jagan Teki napisal(a):
> >> Allwinner A64 has display engine pipeline like other Allwinner SOC's
> >> A
From: Kan Liang
Perf stat doesn't count the uncore event aliases from the same uncore
block in a group, for example:
perf stat -e '{unc_m_cas_count.all,unc_m_clockticks}' -a -I 1000
# time counts unit events
1.000447342unc_m_cas_count.all
1.000
On Wed, Apr 25, 2018 at 05:36:00PM +0200, Peter Zijlstra wrote:
> On Tue, Apr 24, 2018 at 05:10:34PM -0700, Subhra Mazumdar wrote:
> > On 04/24/2018 05:53 AM, Peter Zijlstra wrote:
>
> > > Why do you need to put a max on? Why isn't the proportional thing
> > > working as is? (is the average no goo
On 4/24/18 2:17 AM, Alexey Dobriyan wrote:
> On Mon, Apr 23, 2018 at 10:21:01PM -0400, je...@suse.com wrote:
>> Memory pressure isn't really an issue on this machine, so we
>> end up using well over 100GB for proc files.
>
> Text files at scale!
>
>> With these patches applied, running the same t
Hi Andy,
> Am 11.04.2018 um 07:00 schrieb H. Nikolaus Schaller :
>
> Hi Andy,
>
>> Am 10.04.2018 um 20:06 schrieb Andy Shevchenko :
>>
>> On Tue, Apr 10, 2018 at 7:07 PM, H. Nikolaus Schaller
>> wrote:
>>> PCAL chips ("L" seems to stand for "latched") have additional
>>> registers starting at
On 04/24/2018 05:58 PM, Florian Fainelli wrote:
Hi Linus, Rafael, all
Our GPIO controller driver: gpio-brcmstb.c has a shutdown callback which
gets invoked when the system is brought into poweroff aka S5. So far so
good, except that we also wish to use gpio_keys.c as a possible wake-up
source,
Hi,
Dne sreda, 25. april 2018 ob 15:55:48 CEST je Maxime Ripard napisal(a):
> On Wed, Apr 25, 2018 at 06:29:05PM +0530, Jagan Teki wrote:
> > On Tue, Apr 24, 2018 at 7:38 PM, Maxime Ripard
> >
> > wrote:
> > > On Tue, Apr 24, 2018 at 07:04:12PM +0530, Jagan Teki wrote:
> > >> Allwinner A64 has d
On Wed, Apr 25, 2018 at 12:33:40PM +0200, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 4.14.37 release.
> There are 183 patches in this series, all will be posted as a response
> to this one. If anyone has any issues with these being applied, please
> let me kno
From: "K. Y. Srinivasan"
Implement APIC related enlightenments.
K. Y. Srinivasan (5):
X86: Hyper-V: Enlighten APIC access
X86: Hyper-V: Enable IPI enlightenments
X86: Hyper-V: Enhanced IPI enlightenment
X86: Hyper-V: Consolidate code for converting cpumask to vpset
X86: Hyper-V: Consol
Currently when a new resource group is created its allocations would be
those that belonged to the resource group to which its closid belonged
previously.
That is, we can encounter a case like:
mkdir newgroup
cat newgroup/schemata
L2:0=ff;1=ff
echo 'L2:0=0xf0;1=0xf0' > newgroup/schemata
cat newgro
Dear Maintainers,
This third series of Cache Pseudo-Locking enabling addresses all feedback
received during the upstream review of RFC V2.
The last patch of this series depends on the series:
"[RFC PATCH 0/3] Interface for higher order contiguous allocations"
submitted at:
http://lkml.kernel.org/
A pseudo-locked region is introduced representing an instance of a
pseudo-locked cache region. Each cache instance (domain) can support
one pseudo-locked region. Similarly a resource group can be used for
one pseudo-locked region.
Include a pointer to a pseudo-locked region from the domain and res
With the new calls find_alloc_contig_pages() and free_contig_pages()
it is possible to allocate contiguous memory regions larger than what
the SLAB allocators can support.
Use the new API to support allocation of large contiguous memory regions
in order to support pseudo-locked regions larger than
In preparation for support of debugging of RDT sub features the user can
now enable a RDT debugfs region.
Introduce the Kconfig option to enable this debug area and the subsequent
creation of the resctrl debugfs directory.
Signed-off-by: Reinette Chatre
---
arch/x86/Kconfig
From: "K. Y. Srinivasan"
Support enhanced IPI enlightenments (to target more than 64 CPUs).
Signed-off-by: K. Y. Srinivasan
---
arch/x86/hyperv/hv_apic.c | 49 --
arch/x86/include/asm/hyperv-tlfs.h | 1 +
arch/x86/include/asm/mshyperv.h| 39 +++
Information about resources as well as resource groups are contained in
a variety of resctrl files. Now that pseudo-locked regions can be
created the files can be updated to present appropriate information to
the user.
Update the resource group's schemata file to show only the information
of the p
From: "K. Y. Srinivasan"
Consolidate the allocation of the hypercall input page.
Signed-off-by: K. Y. Srinivasan
---
arch/x86/hyperv/hv_init.c | 2 --
arch/x86/hyperv/mmu.c | 33 +
arch/x86/include/asm/mshyperv.h | 1 -
3 files changed, 9 inser
From: "K. Y. Srinivasan"
Hyper-V supports MSR based APIC access; implement
the enlightenment.
Signed-off-by: K. Y. Srinivasan
---
arch/x86/hyperv/Makefile| 2 +-
arch/x86/hyperv/hv_apic.c | 98 +
arch/x86/hyperv/hv_init.c | 5 ++-
a
On Wed, Apr 25, 2018 at 10:00:31AM -0500, Rob Herring wrote:
> On Tue, Apr 24, 2018 at 5:58 PM, Florian Fainelli
> wrote:
> > Hi Linus, Rafael, all
> >
> > Our GPIO controller driver: gpio-brcmstb.c has a shutdown callback which
> > gets invoked when the system is brought into poweroff aka S5. So
From: "K. Y. Srinivasan"
Consolidate code for converting cpumask to vpset.
Signed-off-by: K. Y. Srinivasan
---
arch/x86/hyperv/hv_apic.c | 2 +-
arch/x86/hyperv/mmu.c | 45 +++---
arch/x86/include/asm/hyperv-tlfs.h | 2 +-
3 files changed
From: "K. Y. Srinivasan"
Hyper-V supports hypercalls to implement IPI; use them.
Signed-off-by: K. Y. Srinivasan
---
arch/x86/hyperv/hv_apic.c | 125 +
arch/x86/hyperv/hv_init.c | 17 +
arch/x86/include/asm/hyperv-tlfs.h | 9 +++
arc
On Mon, 02 Apr 2018 19:06:14 +0200,
Pierre-Louis Bossart wrote:
>
> The split between ACPI and PCI platforms generated issues with randconfig:
>
> with SND_SST_ATOM_HIFI2_PLATFORM_PCI=y and
> SND_SST_ATOM_HIFI2_PLATFORM=m, we get this module link failure:
>
> ERROR: "sst_context_init"
> [sound/s
From: Colin King
Date: Wed, 25 Apr 2018 11:43:07 +0100
> From: Colin Ian King
>
> The check for len > 0 is always true and hence is redundant as
> this check is already being made to execute the code inside the
> while-loop. Hence it is redundant and can be removed.
>
> Cleans up cppcheck warn
Knowing the model specific prefetch disable bits is required to support
cache pseudo-locking because the hardware prefetchers need to be disabled
when the kernel memory is pseudo-locked to cache. We add these bits only
for platforms known to support cache pseudo-locking.
When the user requests loc
We intend to modify file permissions to make the "tasks", "cpus", and
"cpus_list" not accessible to the user when cache pseudo-locking in
progress. Even so, it is still possible for the user to force the file
permissions (using chmod) to make them writeable. Similarly, directory
permissions will be
The user triggers the creation of a pseudo-locked region when writing a
valid schemata to the schemata file of a resource group in the
pseudo-locksetup mode.
A valid schemata is one that: (1) does not overlap with any other resource
group, (2) does not involve a cache that already contains a
pseud
Deeper C-states impact cache content through shrinking of the cache or
flushing entire cache to memory before reducing power to the cache.
Deeper C-states will thus negatively impact the pseudo-locked regions.
To avoid impacting pseudo-locked regions C-states are limited on
pseudo-locked region cr
Broadwell microarchitecture supports pseudo-locking. Add support for
the L3 cache related performance events of these systems so that
the success of pseudo-locking can be measured more accurately on these
platforms.
Signed-off-by: Reinette Chatre
---
arch/x86/kernel/cpu/intel_rdt_pseudo_lock.c
When the administrator requests a change in a resource group's schemata
we have to ensure that the new schemata respects the current resource
group as well as the other active resource groups' schemata.
The new schemata is not allowed to overlap with the schemata of any
exclusive resource groups.
With cache regions now explicitly marked as "shareable" or "exclusive"
we would like to communicate to the user how portions of the cache
are used.
Introduce "bit_usage" that indicates for each resource
how portions of the cache are configured to be used.
To assist the user to distinguish whether
In considering changes to a resource group it becomes necessary to know
whether tasks have been assigned to the resource group in question.
Introduce a new utility that can be used to check if any tasks have been
assigned to a particular resource group.
Signed-off-by: Reinette Chatre
---
arch/x
On Tue, Apr 24, 2018 at 11:34 AM, Johan Hovold wrote:
> Add binding for u-blox GNSS receivers.
>
> Note that the u-blox product names encodes form factor (e.g. "neo"),
> chipset (e.g. "8") and variant (e.g. "q"), but that only formfactor and
> chipset is used for the compatible strings (for now).
Intel Goldmont processors supports non-architectural precise events that
can be used to give us more insight into the success of L2 cache
pseudo-locking on these platforms.
Introduce a new measurement trigger that will enable two precise events,
MEM_LOAD_UOPS_RETIRED.L2_HIT and MEM_LOAD_UOPS_RETIR
After a pseudo-locked region is created it needs to be made
available to user space for usage.
A character device supporting mmap() is created for each pseudo-locked
region. A user space application can now use mmap() system call to map
pseudo-locked region into its virtual address space.
Signed-
There is no simple yes/no test to determine if pseudo-locking was
successful. In order to test pseudo-locking we expose a debugfs file for
each pseudo-locked region that will record the latency of reading the
pseudo-locked memory at a stride of 32 bytes (hardcoded). These numbers
will give us an id
The schemata file displays the allocations associated with each domain
of each resource. The syntax of this file reflects the capacity bitmask
(CBM) of the actual allocation. In order to determine the actual size of
an allocation the user needs to dig through three different files to query
the vari
The RDT system's initialization does not have the corresponding exit
handling to ensure everything initialized on load is cleaned up also.
Introduce the cleanup routines that complement all initialization. This
includes the removal of a duplicate rdtgroup_init() declaration.
Signed-off-by: Reinet
A pseudo-locked region does not have a class of service associated with
it and thus not tracked in the array of control values maintained as
part of the domain. Even so, when the user provides a new bitmask for
another resource group it needs to be checked for interference with
existing pseudo-lock
The user requests a pseudo-locked region by providing a schemata to a
resource group that is in the pseudo-locksetup mode. This is the
functionality that consumes the parsed user data and creates the
pseudo-locked region.
First, required information is deduced from user provided data.
This include
Resource groups used for pseudo-locking do not require the same work on
removal as the other resource groups.
The resource group removal is split in two in preparation for support of
pseudo-locking resource groups. A single re-ordering occurs - the
setting of the rdtgrp flag is moved to later. Thi
The locksetup mode is the way in which the user communicates that the
resource group will be used for a pseudo-locked region. Locksetup mode
should thus ensure that all restrictions on a resource group are met
before locksetup mode can be entered. The resource group should also be
configured to ens
The user can request entering pseudo-locksetup mode by writing
"pseudo-locksetup" to the mode file. Act on this request as well as
support switching from a pseudo-locksetup mode (before pseudo-locked
mode was entered). It is not supported to modify the mode once
pseudo-locked mode has been entered.
When a resource group is pseudo-locked it is orphaned without a class of
service associated with it. We thus do not want any monitoring in
progress on a resource group that will be used for pseudo-locking.
Introduce a test that can be used to determine if pseudo-locking in
progress on a resource g
In support of Cache Pseudo-Locking we need to restrict access to
specific resctrl files to protect the state of a resource group used for
pseudo-locking from being changed in unsupported ways.
Introduce two utilities that can be used to either restrict or restore
the access to all files irrelevant
On Wed, Apr 25, 2018 at 12:41 PM, Frank Rowand wrote:
> On 04/25/18 07:59, Alan Tull wrote:
>> On Tue, Apr 24, 2018 at 3:56 PM, Frank Rowand wrote:
>>> Hi Alan,
>>>
>>> On 04/23/18 15:38, Frank Rowand wrote:
Hi Jan,
+ Alan Tull for fpga perspective
On 04/22/18 03:30, Jan
Marvell PPv2.2 controller present on CP-110 need the extra "mg_core_clk"
clock to avoid system hangs when powering some network interfaces up.
This issue appeared after a recent clock rework on Armada 7K/8K platforms.
This commit adds the new clock and updates the documentation accordingly.
Fixe
Marvell's PPv2.2 IP needs an additional clock named "MG Core clock".
This is required on Armada 7K and 8K.
This commit adds the required clock in mvpp2, making sure it's only
used on PPv2.2.
Fixes: c7e92def1ef4 ("clk: mvebu: cp110: Fix clock tree representation")
Signed-off-by: Maxime Chevallier
Armada 7K / 8K clock management has recently been reworked, see :
commit c7e92def1ef4 ("clk: mvebu: cp110: Fix clock tree representation")
I have been experiencing overall system hangs on MacchiatoBin when starting
the eth1 interface since then. It turns out some clocks dependencies were
missing
When clk_prepare_enable fails for the axi_clk, the mg_clk isn't properly
cleaned up. Add another jump label to handle that case, and make sure we
jump to it in the later error cases.
Fixes: 4792ea04bcd0 ("net: mvpp2: Fix clock resource by adding an optional bus
clock")
Signed-off-by: Maxime Cheva
A new resctrl file "mode" associated with each resource group
is introduced. This file will display the resource group's current mode
and an administrator can also use it to modify the resource group's
mode.
Only shareable mode is currently supported.
Signed-off-by: Reinette Chatre
fixme: merge
During CAT feature discovery the capacity bitmasks (CBMs) associated
with all the classes of service are initialized to all ones, even if the
class of service is not in use. Introduce a test that can be used to
determine if a class of service is in use. This test enables code
interested in parsing
The two modes used to manage Cache Pseudo-Locked regions are introduced.
A resource group is assigned "pseudo-locksetup" mode when the user
indicates that this resource group will be used for a Cache
Pseudo-Locked region. When the Cache Pseudo-Locked region has been set
up successfully after the us
When a resource group is used for Cache Pseudo-Locking then the region
of cache ends up being orphaned with no class of service referring to
it. The resctrl files intended to manage how the classes of services are
utilized thus become irrelevant.
The fact that a resctrl file is not relevant can be
Add description of Cache Pseudo-Locking feature, its interface,
as well as an example of its usage.
Signed-off-by: Reinette Chatre
---
Documentation/x86/intel_rdt_ui.txt | 278 -
1 file changed, 276 insertions(+), 2 deletions(-)
diff --git a/Documentation/x86
By default, if the opener has CAP_DAC_OVERRIDE, a kernfs file can be
opened regardless of RW permissions. Writing to a kernfs file will thus
succeed even if permissions are .
We would like to restrict the actions that can be performed on a
resource group from userspace based on the mode of the
At this time there are no constraints on how bitmasks represented by
schemata can be associated with closids represented by resource groups.
A bitmask of one class of service can without any objections overlap
with the bitmask of another class of service.
The concept of "mode" is introduced in pre
Each resource is associated with a configurable callback that should be
used to parse the information provided for the particular resource from
user space. In addition to the resource and domain pointers this callback
is provided with just the character buffer being parsed.
In support of flexible
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