tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
master
head: 8b12a62a4e3ed4ae99c715034f557eb391d6b196
commit: 000591f1ca3312d9a29e15a9e3fe5c4171f75586 csky: Enable LOCKDEP_SUPPORT
date: 12 months ago
config: csky-randconfig-r012-20210318 (attached as .config
On (21/03/19 14:53), Sergey Senozhatsky wrote:
>
> I don't check my @gmail.com addresses often enough these days.
>
Please ignore this one. It's a different story and does not belong
to this series.
-ss
s/systme/system/
Signed-off-by: Bhaskar Chowdhury
---
drivers/power/supply/charger-manager.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/power/supply/charger-manager.c
b/drivers/power/supply/charger-manager.c
index 4dea8ecd70bc..45da870aecca 100644
---
I don't check my @gmail.com addresses often enough these days.
Signed-off-by: Sergey Senozhatsky
---
MAINTAINERS | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/MAINTAINERS b/MAINTAINERS
index b2baeb5e4a68..01b000cd5774 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@
This patch implements UVC 1.5 Region of Interest (ROI) control.
Note that, UVC 1.5 defines CT_DIGITAL_WINDOW_CONTROL controls
and mentions that ROI rectangle coordinates "must be within
the current Digital Window as specified by the CT_WINDOW control."
(4.2.2.1.20 Digital Region of Interest (ROI)
Document V4L2 selection targets that will be used to ROI
implementation.
Signed-off-by: Sergey Senozhatsky
---
.../media/v4l/selection-api-configuration.rst | 22 +++
.../media/v4l/selection-api-examples.rst | 28 +++
.../media/v4l/v4l2-selection-targets.rst
Document ROI auto controls.
Signed-off-by: Sergey Senozhatsky
---
.../media/v4l/v4l2-selection-flags.rst| 40 +++
1 file changed, 40 insertions(+)
diff --git a/Documentation/userspace-api/media/v4l/v4l2-selection-flags.rst
UVC 1.5 defines the following Region Of Interest auto controls:
D0: Auto Exposure
D1: Auto Iris
D2: Auto White Balance
D3: Auto Focus
D4: Auto Face Detect
D5: Auto Detect and Track
D6: Image Stabilization
D7: Higher Quality
D8 – D15: Reserved, set to zero
Signed-off-by: Sergey Senozhatsky
---
Hello,
This patch set implements UVC 1.5 ROI using v4l2_selection API.
V3:
- reimplemented ROI. We dont' use split controls anymore.
- Ricardo's feedback
Sergey Senozhatsky (6):
media: v4l UAPI: add ROI selection targets
media: v4l UAPI: document ROI selection targets
media: v4l
UVC 1.5 requires Region Of Interest control to implement
GET_CUR, GET_DEF, GET_MIN and GET_MAX requests. This patch
adds new V4L2 selection API targets that will implement
those ROI requests.
Signed-off-by: Sergey Senozhatsky
---
include/uapi/linux/v4l2-common.h | 8
1 file changed, 8
On 16-03-21, 18:35, Jie Deng wrote:
> +++ b/drivers/i2c/busses/i2c-virtio.c
> +static int virtio_i2c_send_reqs(struct virtqueue *vq,
> + struct virtio_i2c_req *reqs,
> + struct i2c_msg *msgs, int nr)
> +{
> + struct scatterlist *sgs[3],
merged into cifs-2.6.git for-next
On Thu, Mar 18, 2021 at 7:50 PM wrote:
>
> From: Liu xuzhi
>
> A typo is found out by codespell tool in 251th lines of cifs_swn.c:
>
> $ codespell ./fs/cifs/
> ./cifs_swn.c:251: funciton ==> function
>
> Fix a typo found by codespell.
>
> Signed-off-by: Liu
Hi Pavel,
On 19/3/2021 4:37 am, Pavel Machek wrote:
> Hi!
>
>
> > > > help
> > > > - Parallel to serial conversion, which is also called SSO
> > > > controller,
> > > > - can drive external shift register for LED outputs.
> > > > - This enables LED support for Serial Shift Output
Since commit 2d1c498072de ("mm: memcontrol: make swap tracking an
integral part of memory control"), the cgroup swap arrays are used to
track memory ownership at the time of swap readahead and swapoff, even
if swap space *accounting* has been turned off by the user via
swapaccount=0 (which sets
The swapaccounting= commandline option already does very little
today. To close a trivial containment failure case, the swap ownership
tracking part of the swap controller has recently become mandatory
(see commit 2d1c498072de ("mm: memcontrol: make swap tracking an
integral part of memory
I don't check my @gmail.com addresses often enough these days.
Signed-off-by: Sergey Senozhatsky
---
MAINTAINERS | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/MAINTAINERS b/MAINTAINERS
index b2baeb5e4a68..01b000cd5774 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@
AMDGPU_DM_DEFAULT_MIN_BACKLIGHT was set to the value of 12
to ensure no display backlight will flicker at low user brightness
settings. However this value is quite bright, so for devices that do not
implement the ACPI ATIF
ATIF_FUNCTION_QUERY_BRIGHTNESS_TRANSFER_CHARACTERISTICS
functionality the
On Fri, Mar 19, 2021 at 12:43:48PM +1100, Finn Thain wrote:
> A few months ago I wrote another patch to move some more platforms away
> from macide but it has not been tested yet. That is not to say you should
> wait. However, my patch does have some changes that are missing from your
> patch
On Fri, Mar 19, 2021 at 05:06:02PM +1300, Kai Huang wrote:
> Below kernel bug happened when running simple SGX application when EPC
> is under pressure. The root cause is with commit 5b8719504e3a
> ("x86/sgx: Add a basic NUMA allocation scheme to sgx_alloc_epc_page()"),
> __sgx_alloc_epc_page()
On 19-03-21, 13:31, Jie Deng wrote:
>
> On 2021/3/19 11:54, Viresh Kumar wrote:
> > On 18-03-21, 15:52, Arnd Bergmann wrote:
> > > Allowing multiple virtio-i2c controllers in one system, and multiple i2c
> > > devices attached to each controller is clearly something that has to work.
> > Good.
>
On Thu, Mar 18, 2021 at 02:49:33PM -0700, Dave Hansen wrote:
> The NUMA fallback in __sgx_alloc_epc_page() recently grew an
> additional 'nid' variable to prevent extra trips through the
> fallback loop in case where the thread is migrated around.
>
> But, the new copy is not properly
On Wed, Mar 17, 2021 at 02:53:54PM +0800, Clark Wang wrote:
> From: Gao Pan
>
> use subsys_initcall for i2c driver to improve i2c driver probe priority
>
> Signed-off-by: Gao Pan
I usually don't take subsys_initcall patches anymore. In most cases, the
client drivers can be fixed instead. If
On Thu, Mar 18, 2021 at 12:43:01PM -0700, Dave Hansen wrote:
>
> From: Dave Hansen
>
> The SGX device file (/dev/sgx_enclave) is unusual in that it requires
> execute permissions. It has to be both "chmod +x" *and* be on a
> filesystem without 'noexec'.
>
> In the future, udev and systemd
On (21/03/18 22:19), Ricardo Ribalda wrote:
> >
> > May I please ask for more opinions on this?
>
> Could you try setting the roi in a loop in your device and verify that
> it accepts all the values with no modification. If so we can implement
> the set/get as a quirk for other devices.
Tested
> -Original Message-
> From: Aisheng Dong
> Sent: Friday, March 19, 2021 12:40
> To: Clark Wang ; shawn...@kernel.org;
> s.ha...@pengutronix.de
> Cc: ker...@pengutronix.de; feste...@gmail.com; dl-linux-imx i...@nxp.com>; sumit.sem...@linaro.org; christian.koe...@amd.com;
>
On 2021/3/19 11:54, Viresh Kumar wrote:
On 18-03-21, 15:52, Arnd Bergmann wrote:
Allowing multiple virtio-i2c controllers in one system, and multiple i2c
devices attached to each controller is clearly something that has to work.
Good.
I don't actually see a limitation though. Viresh, what
Otherwise we may endup blocking on pipe or socket.
Fixes: 6d5d5ac ("io_uring: extend async work merge")
Testcase:
https://github.com/dmonakhov/liburing/commit/16d171b6ef9d68e6db66650a83d98c5c721d01f6
Signed-off-by: Dmitry Monakhov
---
fs/io_uring.c | 3 +++
1 file changed, 3 insertions(+)
> From: Clark Wang
> Sent: Wednesday, March 17, 2021 2:54 PM
>
> Add eDMA receive and send mode support.
> Support to read and write data larger than 256 bytes in one frame.
>
> Signed-off-by: Clark Wang
> Reviewed-by: Li Jun
> ---
> drivers/i2c/busses/i2c-imx-lpi2c.c | 291
s/mesured/measured/ ...twice
Signed-off-by: Bhaskar Chowdhury
---
drivers/w1/slaves/w1_therm.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/w1/slaves/w1_therm.c b/drivers/w1/slaves/w1_therm.c
index 976eea28f268..d3b4ceb07622 100644
---
Hi Nishanth,
On 09/03/21 9:28 pm, Nishanth Menon wrote:
> On 21:20-20210309, Aswath Govindraju wrote:
>> Hi Nishanth,
>>
>> On 09/03/21 8:13 pm, Nishanth Menon wrote:
>>> On 16:59-20210304, Aswath Govindraju wrote:
The following series of patches adds support for gpio on AM642 evm/sk.
On Fri, 2021-03-19 at 10:59 +0800, Wang Qing wrote:
> Using wake_up_process() is more simpler and friendly,
> and it is more convenient for analysis and statistics
I likely needn't bother, and don't have a NAK to paste on this thing,
but here's another copy of my NOPE for yet another gratuitous
Sorry everyone, please ignore these patches as I forgot to update them...
New patches were sent.
On 2021-03-19 13:10, Tianling Shen wrote:
>
> Add devicetree binding documentation for the FriendlyARM NanoPi R4S.
>
> Changes in v5:
> - Dropped the empty PCIe node
> - Dropped useless
Add device tree nodes for GPIO modules and interrupt controller in main
and mcu domains.
Signed-off-by: Aswath Govindraju
---
arch/arm64/boot/dts/ti/k3-am64-main.dtsi | 45
arch/arm64/boot/dts/ti/k3-am64-mcu.dtsi | 27 ++
2 files changed, 72 insertions(+)
The gpio0 subsystem present in MCU domain might be used by firmware and is
not pinned out in evm/sk. Therefore, reserve it for MCU firmware.
Signed-off-by: Aswath Govindraju
---
arch/arm64/boot/dts/ti/k3-am642-evm.dts | 5 +
arch/arm64/boot/dts/ti/k3-am642-sk.dts | 5 +
2 files
The following series of patches adds support for gpio on AM642 evm/sk.
GPIO test logs,
AM642-evm: https://pastebin.ubuntu.com/p/PCGmY34spb/
AM642-sk: https://pastebin.ubuntu.com/p/nrxzyQTKkX/
Changes since v2:
- Rebased the series on top of ti-k3-dts-next branch
- Added gpio test logs.
Changes
s/packt/packet/
Signed-off-by: Bhaskar Chowdhury
---
arch/mips/pci/pci-xtalk-bridge.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/mips/pci/pci-xtalk-bridge.c b/arch/mips/pci/pci-xtalk-bridge.c
index 50f7d42cca5a..d2216942af18 100644
---
Add devicetree binding documentation for the FriendlyARM NanoPi R4S.
Changes in v6:
- Fixed format of LED nodes
Changes in v5:
- Dropped the empty PCIe node
- Dropped useless `/delete-property/`
- Renamed LED nodes
Changes in v4:
- Correctly dropped `display-subsystem` node
- Dropped
This adds support for the NanoPi R4S from FriendlyArm.
Rockchip RK3399 SoC
1GB DDR3 or 4GB LPDDR4 RAM
Gigabit Ethernet (WAN)
Gigabit Ethernet (PCIe) (LAN)
USB 3.0 Port x 2
MicroSD slot
Reset button
WAN - LAN - SYS LED
[initial DTS file]
Co-developed-by: Jensen Huang
Signed-off-by: Jensen Huang
> From: Clark Wang
> Sent: Wednesday, March 17, 2021 2:54 PM
>
> Claim clkhi and clklo as integer type to avoid possible calculation errors
> caused
> by data overflow.
>
> Reviewed-by: Fugang Duan
> Signed-off-by: Clark Wang
Reviewed-by: Dong Aisheng
Regards
Aisheng
> ---
>
> From: Clark Wang
> Sent: Wednesday, March 17, 2021 2:54 PM
>
> The clkhi and clklo ratio was not very precise before that can make the time
> of
> START/STOP/HIGH LEVEL out of specification.
>
> Therefore, the calculation of these times has been modified in this patch.
> At the same time,
Update Chandrasekar Ramakrishnan as maintainer for mcan mmio device driver as I
will be moving to a different role.
Signed-off-by: Pankaj Sharma
---
MAINTAINERS | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/MAINTAINERS b/MAINTAINERS
index a50a543e3c81..76db44337f6c 100644
> From: Clark Wang
> Sent: Wednesday, March 17, 2021 2:54 PM
>
> Add bus recovery feature for LPI2C.
> Need add gpio pinctrl, scl-gpios and sda-gpios configuration in dts.
>
Pls also update dt-binding first
> Signed-off-by: Clark Wang
> ---
> drivers/i2c/busses/i2c-imx-lpi2c.c | 83
> From: Clark Wang
> Sent: Wednesday, March 17, 2021 2:54 PM
>
> Switching the clock frequently will affect the data transmission efficiency,
> and
> prolong the timeout to reduce autosuspend times for lpi2c.
>
> Acked-by: Fugang Duan
> Signed-off-by: Clark Wang
Reviewed-by: Dong Aisheng
Add devicetree binding documentation for the FriendlyARM NanoPi R4S.
Changes in v5:
- Dropped the empty PCIe node
- Dropped useless `/delete-property/`
- Renamed LED nodes
Changes in v4:
- Correctly dropped `display-subsystem` node
- Dropped meaningless `pwm-fan` node
- Dropped wrong `sdmmc`
This adds support for the NanoPi R4S from FriendlyArm.
Rockchip RK3399 SoC
1GB DDR3 or 4GB LPDDR4 RAM
Gigabit Ethernet (WAN)
Gigabit Ethernet (PCIe) (LAN)
USB 3.0 Port x 2
MicroSD slot
Reset button
WAN - LAN - SYS LED
[initial DTS file]
Co-developed-by: Jensen Huang
Signed-off-by: Jensen Huang
Hi,Oleg
> But then I don't understand the SIGNAL_GROUP_EXIT check added by your
> patch. Do we really need it if we want to avoid zap_pid_ns_processes()
> when the global init exits?
I think check SIGNAL_GROUP_EXIT is necessary,or panic() will happen
after all init sub-threads do_exit(),so the
> From: Clark Wang
> Sent: Wednesday, March 17, 2021 2:54 PM
>
> use subsys_initcall for i2c driver to improve i2c driver probe priority
Will this affect DMA support which will be probed much later compared with
subsys_initcall?
>
> Signed-off-by: Gao Pan
Add your sign-off
> ---
>
On Thu, Mar 18, 2021 at 09:00:54PM -0700, Florian Fainelli wrote:
> When SWIOTLB_NO_FORCE is used, there should really be no allocations of
> io_tlb_nslabs to occur since we are not going to use those slabs. If a
> platform was somehow setting swiotlb_no_force and a later call to
> swiotlb_init()
On Thu, Mar 18, 2021 at 11:29:23PM -0500, Alex Elder wrote:
> Convert some commented assertion statements into real calls to
> ipa_assert(). If the IPA device pointer is available, provide it,
> otherwise pass NULL for that.
>
> There are lots more places to convert, but this serves as an
These are "all-in-one" CPU liquid coolers that can be monitored and
controlled through a proprietary USB HID protocol.
While the models have differently sized radiators and come with varying
numbers of fans, they are all indistinguishable at the software level.
The driver exposes fan/pump speeds
Hi Arnaldo,
On 3/18/2021 9:15 PM, Arnaldo Carvalho de Melo wrote:
Em Wed, Mar 17, 2021 at 02:51:42PM -0700, Andi Kleen escreveu:
If you care about not breaking existing scripts, then the output they
get with what they use as command line options must continue to produce
the same output.
It's
> From: Clark Wang
> Sent: Wednesday, March 17, 2021 2:54 PM
>
> add debug message when i2c peripheral clk rate is 0, then directly return
> -EINVAL.
>
> Signed-off-by: Gao Pan
> Reviewed-by: Andy Duan
Drop old review when patch is changed
> ---
> drivers/i2c/busses/i2c-imx-lpi2c.c | 7
s/storign/storing/
Signed-off-by: Bhaskar Chowdhury
---
arch/microblaze/lib/uaccess_old.S | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/microblaze/lib/uaccess_old.S
b/arch/microblaze/lib/uaccess_old.S
index 0e8cc2710c27..eca290090038 100644
---
On Thu, Mar 18, 2021 at 11:29:22PM -0500, Alex Elder wrote:
> Create a new macro ipa_assert() to verify that a condition is true.
> This produces a build-time error if the condition can be evaluated
> at build time; otherwise __ipa_assert_runtime() is called (described
> below).
>
> Another
> From: Clark Wang
> Sent: Wednesday, March 17, 2021 2:54 PM
>
> Manage irq resource request/release in runtime pm to save irq domain's
> power.
>
> Signed-off-by: Frank Li
> Signed-off-by: Fugang Duan
> Reviewed-by: Frank Li
> ---
> drivers/i2c/busses/i2c-imx-lpi2c.c | 26
s/recalcultion/recalculation/
Signed-off-by: Bhaskar Chowdhury
---
include/net/red.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/net/red.h b/include/net/red.h
index 932f0d79d60c..6b418b69dc48 100644
--- a/include/net/red.h
+++ b/include/net/red.h
@@ -287,7
> From: Clark Wang
> Sent: Wednesday, March 17, 2021 2:54 PM
>
> The lpi2c IP needs two clks: ipg clk and per clk. The old lpi2c driver missed
> ipg
> clk. This patch adds ipg clk for lpi2c driver.
>
Pleas also update dt-binding and sent along with this patchset.(before this one)
>
Hi Kishon,
Thank you for the fix!
[...]
> @@ -798,7 +798,8 @@ static int __init ks_pcie_host_init(struct pcie_port *pp)
> int ret;
>
> pp->bridge->ops = _pcie_ops;
> - pp->bridge->child_ops = _child_pcie_ops;
> + if (!ks_pcie->is_am6)
> + pp->bridge->child_ops =
On (21/03/18 16:10), Dan Carpenter wrote:
>
> The shift has higher precedence than mask so this doesn't work as
> intended.
>
> Fixes: ef24dca82789 ("cifsd: add support for ACLs")
> Signed-off-by: Dan Carpenter
Thanks.
Reviewed-by: Sergey Senozhatsky
-ss
On (21/03/18 16:11), Dan Carpenter wrote:
>
> The smb_direct_alloc_sendmsg() function never returns NULL, it only
> returns error pointers so the check needs to be updated.
>
> Fixes: cabcebc31de4 ("cifsd: introduce SMB3 kernel server")
> Signed-off-by: Dan Carpenter
Thanks.
Reviewed-by:
Hi,
[...]
> > + /* Wait for wait_idle */
> > + ret = readl_poll_timeout(phy_cr_para_ack, val, val, 10, 5000);
> > + if (ret)
> > + dev_err(dev, "Wait for wait_ilde state failed!\n");
>
> It would be "wait_idle" rather than "wait_idle".
[...]
Apologies, meant to say "wait_ilde"
On (21/03/18 16:12), Dan Carpenter wrote:
> The ksmbd_free_work_struct() frees "work" so we need to swap the order
> of these two function calls to avoid a use after free.
>
> Fixes: cabcebc31de4 ("cifsd: introduce SMB3 kernel server")
> Signed-off-by: Dan Carpenter
Thanks.
Reviewed-by: Sergey
> From: Clark Wang
> Sent: Wednesday, March 17, 2021 2:54 PM
> Subject: [PATCH 02/11] i2c: imx-lpi2c: add runtime pm support
>
> - Add runtime pm support to dynamicly manage the clock.
> - Put the suspend to suspend_noirq.
> - Call .pm_runtime_force_suspend() to force runtime pm suspended
> in
s/nothign/nothing/
Signed-off-by: Bhaskar Chowdhury
---
drivers/gpu/drm/i915/display/intel_dpll_mgr.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
index
Hi,
[...]
> +static void fu740_phyregwrite(const uint8_t phy, const uint16_t addr,
> + const uint16_t wrdata, struct fu740_pcie *afp)
> +{
> + struct device *dev = afp->pci.dev;
> + void __iomem *phy_cr_para_addr;
> + void __iomem *phy_cr_para_wr_data;
> +
We use ipa_cmd_header_valid() to ensure certain values we will
program into hardware are within range, well in advance of when we
actually program them. This way we avoid having to check for errors
when we actually program the hardware.
Unfortunately the dev_err() call for a bad offset value
Convert some commented assertion statements into real calls to
ipa_assert(). If the IPA device pointer is available, provide it,
otherwise pass NULL for that.
There are lots more places to convert, but this serves as an initial
verification of the new mechanism. The assertions here implement
There are blocks of IPA code that sanity-check various values, at
compile time where possible. Most of these checks can be done once
during development but skipped for normal operation. These checks
permit the driver to make certain assumptions, thereby avoiding the
need for runtime error
Create a new macro ipa_assert() to verify that a condition is true.
This produces a build-time error if the condition can be evaluated
at build time; otherwise __ipa_assert_runtime() is called (described
below).
Another macro, ipa_assert_always() verifies that an expression
yields true at
There is sanity checking code in the IPA driver that's meant to be
enabled only during development. This allows the driver to make
certain assumptions, but not have to verify those assumptions are
true at (operational) runtime. This code is built conditional on
IPA_VALIDATION, set (if desired)
No changes, Just loop lkp in.
Hi lkp,
Sorry for the late reply, thanks for your report.
This patch is to fix the build warning message.
Thanks.
Regards
On Mon, Mar 15, 2021 at 5:45 PM wrote:
>
> From: dillon min
>
> when run make dtbs_check with 'bluetoothi brcm,bcm43438-bt'
> dts enabled
Hi Aswath,
On 19/03/21 9:14 am, Aswath Govindraju wrote:
> The following speed modes are now supported in J7200 SoC,
> - HS200 and HS400 modes at 1.8 V card voltage, in MMCSD0 subsystem [1].
> - UHS-I speed modes in MMCSD1 subsystem [1].
>
> Add support for UHS-I modes by adding voltage
No changes, Just loop lkp in.
Hi lkp,
Sorry for the late reply, thanks for your report.
This patch is to fix the build warning message.
Thanks.
On Mon, Mar 15, 2021 at 5:45 PM wrote:
>
> From: dillon min
>
> This patchset has following changes:
>
> - introduce stm32h750.dtsi to support
> From: Clark Wang
> Sent: Wednesday, March 17, 2021 2:54 PM
>
> A NACK flag in ISR means i2c bus error. In such codition, there is no need to
> do
> read/write operation. It's better to return ISR directly and then stop i2c
> transfer.
>
> Signed-off-by: Gao Pan
> Signed-off-by: Clark Wang
From: Tim Chen
There are x86 CPU architectures (e.g. Jacobsville) where L2 cahce
is shared among a cluster of cores instead of being exclusive
to one single core.
To prevent oversubscription of L2 cache, load should be
balanced between such L2 clusters, especially for tasks with
no shared data.
ARM64 server chip Kunpeng 920 has 6 or 8 clusters in each NUMA node, and each
cluster has 4 cpus. All clusters share L3 cache data while each cluster has
local L3 tag. On the other hand, each cluster will share some internal system
bus. This means cache is much more affine inside one cluster than
On kunpeng920, cpus within one cluster can communicate wit each other
much faster than cpus across different clusters. A simple hackbench
can prove that.
hackbench running on 4 cpus in single one cluster and 4 cpus in
different clusters shows a large contrast:
(1) within a cluster:
root@ubuntu:~#
ARM64 chip Kunpeng 920 has 6 or 8 clusters in each NUMA node, and each
cluster has 4 cpus. All clusters share L3 cache data, but each cluster
has local L3 tag. On the other hand, each clusters will share some
internal system bus. This means cache coherence overhead inside one
cluster is much less
From: Jonathan Cameron
Both ACPI and DT provide the ability to describe additional layers of
topology between that of individual cores and higher level constructs
such as the level at which the last level cache is shared.
In ACPI this can be represented in PPTT as a Processor Hierarchy
Node
Hi Chao,
On Fri, Mar 19, 2021 at 10:15:18AM +0800, Chao Yu wrote:
> On 2021/3/6 12:04, Gao Xiang wrote:
...
> > + (*last_block + 1 != current_block || !*eblks)) {
>
> Xiang,
>
> I found below function during checking bi_max_vecs usage in f2fs:
>
> /**
> * bio_full - check if the bio
On Fri, Mar 19, 2021 at 12:04:47PM +0800, Sieng Piaw Liew wrote:
> Remove this trivial bit of inefficiency from the rx receive loop,
> results in increase of a few Mbps in iperf3. Tested on Intel Core2
> platform.
>
> Signed-off-by: Sieng Piaw Liew
> ---
>
Using napi_alloc_skb in NAPI context avoids enable/disable IRQs, which
increases iperf3 result by a few Mbps. Since napi_alloc_skb() uses
NET_IP_ALIGN, convert other alloc methods to the same padding. Tested
on Intel Core2 and AMD K10 platforms.
Signed-off-by: Sieng Piaw Liew
---
Jim Cromie writes:
> CONFIG_DYNAMIC_DEBUG creates a struct _ddebug (56 bytes) for each
> callsite, which includes 3 pointers to: module, filename, function.
> These are repetetive, and compressible, this patch series goes about
> doing that, it:
So how much memory does it actually save?
-Andi
Hi Mark
On Tue, Mar 16, 2021 at 9:51 PM Mark Brown wrote:
>
> On Tue, Mar 16, 2021 at 01:42:40PM +, Viorel Suman wrote:
>
> > To me it makes sense to manage the clocks and reset from the same place.
> > Currently we have the clocks management moved completely into runtime PM
> >
Below kernel bug happened when running simple SGX application when EPC
is under pressure. The root cause is with commit 5b8719504e3a
("x86/sgx: Add a basic NUMA allocation scheme to sgx_alloc_epc_page()"),
__sgx_alloc_epc_page() returns NULL when there's no free EPC page can be
allocated, while
On Fri, Mar 19, 2021 at 11:40 AM Shakeel Butt wrote:
>
> On Thu, Mar 18, 2021 at 4:08 AM Muchun Song wrote:
> >
> [...]
> >
> > +static inline struct mem_cgroup *get_obj_cgroup_memcg(struct obj_cgroup
> > *objcg)
>
> I would prefer get_mem_cgroup_from_objcg().
Inspired by obj_cgroup_memcg()
Remove this trivial bit of inefficiency from the rx receive loop,
results in increase of a few Mbps in iperf3. Tested on Intel Core2
platform.
Signed-off-by: Sieng Piaw Liew
---
drivers/net/ethernet/atheros/atl1c/atl1c_main.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git
We do not need a SWIOTLB unless we have DRAM that is addressable beyond
the arm_dma_limit. Compare max_pfn with arm_dma_pfn_limit to determine
whether we do need a SWIOTLB to be initialized.
Fixes: ad3c7b18c5b3 ("arm: use swiotlb for bounce buffering on LPAE configs")
Signed-off-by: Florian
On Fri, Mar 05, 2021 at 04:18:36AM +, Matthew Wilcox (Oracle) wrote:
> Our type system does not currently distinguish between tail pages and
> head or single pages. This is a problem because we call compound_head()
> multiple times (and the compiler cannot optimise it out), bloating the
>
When SWIOTLB_NO_FORCE is used, there should really be no allocations of
io_tlb_nslabs to occur since we are not going to use those slabs. If a
platform was somehow setting swiotlb_no_force and a later call to
swiotlb_init() was to be made we would still be proceeding with
allocating the default
Changing to napi_gro_receive() improves efficiency significantly. Tested
on Intel Core2-based motherboards and iperf3.
Signed-off-by: Sieng Piaw Liew
---
drivers/net/ethernet/atheros/atl1c/atl1c_main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git
Hi Hans,
Thank you for your kindly review.
As a beginner in driver coding, I got gains much from your suggestions.
Path v3 is ready at patchwork.^^
Hans de Goede 於 2021年3月19日 週五 上午12:21寫道：
>
> Hi,
>
> On 3/12/21 9:11 AM, YingChieh Ho wrote:
> > From: "Andrea.Ho"
> >
> > Advantech sw_button is
On 3/18/21 8:45 PM, Jisheng Zhang wrote:
Hi,
When trying the latest 5.12-rc3 with both LTO_CLANG_THIN and DEBUG_INFO_BTF
enabled, I met lots of warnings such as:
...
tag__recode_dwarf_type: couldn't find 0x4a7ade5 type for 0x4ab9f88
(subroutine_type)!
ftype__recode_dwarf_types: couldn't
Hi,
Thank you for sending the patches over!
A few nitpicks.
> +title: SiFive fu740 PCIe host controller
> +
> +description:
> + SiFive fu740 PCIe host controller is based on the Synopsys DesignWare
> + PCI core. It shares common features with the PCIe DesignWare core and
> + inherits common
On 18-03-21, 15:52, Arnd Bergmann wrote:
> Allowing multiple virtio-i2c controllers in one system, and multiple i2c
> devices attached to each controller is clearly something that has to work.
Good.
> I don't actually see a limitation though. Viresh, what is the problem
> you see for having
Juniper is known as Acer Chromebook Spin 311 (CP311-3H).
Signed-off-by: Hsin-Yi Wang
---
arch/arm64/boot/dts/mediatek/Makefile | 1 +
.../mt8183-kukui-jacuzzi-juniper-sku16.dts| 13 +
.../mt8183-kukui-jacuzzi-juniper.dtsi | 27 +++
3 files changed,
Damu is known as ASUS Chromebook Flip CM3.
Signed-off-by: Hsin-Yi Wang
---
v3->v4: none
v2->v3: remove unused nodes
v1->v2: fix pp3300_panel regulator property
---
arch/arm64/boot/dts/mediatek/Makefile | 1 +
.../mediatek/mt8183-kukui-jacuzzi-damu.dts| 31 ++
mt8183-kukui-jacuzzi-juniper board also known as Acer Chromebook Spin 311,
using mediatek mt8183 SoC.
Signed-off-by: Hsin-Yi Wang
---
Documentation/devicetree/bindings/arm/mediatek.yaml | 5 +
1 file changed, 5 insertions(+)
diff --git a/Documentation/devicetree/bindings/arm/mediatek.yaml
mt8183-kukui-jacuzzi-damu board also known as ASUS Chromebook Flip CM3,
using mediatek mt8183 SoC.
Signed-off-by: Hsin-Yi Wang
Reviewed-by: Enric Balletbo i Serra
---
Documentation/devicetree/bindings/arm/mediatek.yaml | 4
1 file changed, 4 insertions(+)
diff --git
On Fri, 12 Mar 2021 09:47:08 +, Lee Jones wrote:
> This set is part of a larger effort attempting to clean-up W=1
> kernel builds, which are currently overwhelmingly riddled with
> niggly little warnings.
>
> Lee Jones (30):
> scsi: mpt3sas: mpt3sas_config: Fix a bunch of potential naming
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