On 2020-06-22 17:55:59, Casey Schaufler wrote:
> On 6/22/2020 5:32 PM, Tyler Hicks wrote:
> > Ask the LSM to free its audit rule rather than directly calling kfree().
> > Both AppArmor and SELinux do additional work in their audit_rule_free()
> > hooks. Fix memory leaks by allowing the LSMs to
Das ist deine Chance - https://frigraddschedbe1884.blogspot.co.il/
Alles Gute und bis bald
Bernd Weber
=NEWS=
Pulisic will be big for Chelsea - boss Lampard after 2-1 win at Villa
Chelsea boss Frank Lampard backs Christian Pulisic to play
On Thu, May 28, 2020 at 11:12:46AM +0800, Anson Huang wrote:
> In the nvmem yaml schema, it requires the nodename to be one of
> "eeprom|efuse|nvram", so need to change all i.MX/MXS SoCs ocotp/iim node
> name to efuse:
>
> MXS platforms: i.MX23/28;
> i.MX platforms with IIM:
On Sat, Jun 20, 2020 at 11:03 PM Frank Rowand wrote:
>
> On 2020-06-20 01:44, David Gow wrote:
> > On Sat, Jun 20, 2020 at 1:58 AM Frank Rowand wrote:
> >>
> >> On 2020-06-16 07:08, Paolo Bonzini wrote:
> >>> On 15/06/20 21:07, Bird, Tim wrote:
> >
> >> Finally,
> >> - Should a SKIP
memory_block may have a larger granularity than section, this is why we
have base_section_nr. But base_memory_block_id seems a little
misleading, since there is no larger granularity concept which groups
several memory_block.
What we need here is the exact memory_block_id to a section_nr. Let's
The first parameter of init_memory_block() is intended to retrieve the
memory_block initiated. But now, we never use it.
Drop it for now.
Signed-off-by: Wei Yang
---
drivers/base/memory.c | 9 +++--
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/base/memory.c
When building with LLVM_IAS=1 means using Clang's Integrated Assembly (IAS)
from LLVM/Clang >= v10.0.1-rc1+ instead of GNU/as from GNU/binutils
I see the following breakage in Debian/testing AMD64:
:15:74: error: too many positional arguments
PRECOMPUTE 8*3+8(%rsp), %xmm1, %xmm2, %xmm3, %xmm4,
On Mon, Jun 22, 2020 at 03:27:47PM -0700, Bjorn Andersson wrote:
> The IPCC hardware block provides a mechanism for triggering interrupts
> between co-processors in recent Qualcomm SoCs. This is used as basis for
> most form of communication between co-processors, so enable this
> support.
>
>
Add a DT node for chip identification.
Signed-off-by: Andreas Färber
---
v2: New
arch/arm64/boot/dts/realtek/rtd139x.dtsi | 5 +
1 file changed, 5 insertions(+)
diff --git a/arch/arm64/boot/dts/realtek/rtd139x.dtsi
b/arch/arm64/boot/dts/realtek/rtd139x.dtsi
index
On Mon, Jun 22, 2020 at 03:27:46PM -0700, Bjorn Andersson wrote:
> Add remoteproc nodes for the audio, compute and sensor cores, define
> glink for each one and enable them on the MTP with appropriate firmware
> defined.
>
> Signed-off-by: Bjorn Andersson
Reviewed-by: Manivannan Sadhasivam
Add a DT node for chip identification.
Signed-off-by: Andreas Färber
---
v2: New
arch/arm64/boot/dts/realtek/rtd16xx.dtsi | 7 +++
1 file changed, 7 insertions(+)
diff --git a/arch/arm64/boot/dts/realtek/rtd16xx.dtsi
b/arch/arm64/boot/dts/realtek/rtd16xx.dtsi
index
Hello,
This series adds a soc bus driver for Realtek Digital Home Center SoC families.
v2 is rebased on syscon and RTD1319, adjusts field widths and incorporates
data additions from Stanley's monolithic patch.
The previous RFC's reg hack is superseded in v2 with a trivial read-only
eFuse
Detection logic from downstream drivers/soc/realtek/rtd129x/rtk_chip.c.
Acked-by: James Tai
Signed-off-by: Andreas Färber
---
TODO: Name the bit in ISO_CHIP_INFO1:bound_opts.
v1 -> v2:
* Instead of direct iso register access use the new syscon regmap
drivers/soc/realtek/chip.c | 27
From: Stanley Chang
Identify RTD1319 SoC revisions B00 to B02.
Signed-off-by: Stanley Chang
Signed-off-by: Andreas Färber
---
v2: New
* Split out from Stanley's v1
drivers/soc/realtek/chip.c | 4
1 file changed, 4 insertions(+)
diff --git a/drivers/soc/realtek/chip.c
Revision based on downstream drivers/soc/realtek/rtd13xx/rtk_chip.c.
Signed-off-by: Stanley Chang
Signed-off-by: Andreas Färber
---
v2: New
* Filled in chip ID based on Stanley's v1
drivers/soc/realtek/chip.c | 6 ++
1 file changed, 6 insertions(+)
diff --git
Add a soc bus driver to print chip model and revision details.
Revisions from downstream drivers/soc/realtek/rtd{119x,129x}/rtk_chip.c.
Signed-off-by: Andreas Färber
---
v1 -> v2:
* Added entry to MAINTAINERS
* Changed chip_id and chip_rev from u32 to u16, based on reg field definitions
*
This additional register is needed to distinguish RTD1296 from RTD1295.
Signed-off-by: Andreas Färber
---
v1 -> v2:
* Switched from reg to new iso-syscon phandle
arch/arm64/boot/dts/realtek/rtd129x.dtsi | 1 +
1 file changed, 1 insertion(+)
diff --git
Logic self-determined by comparing DS418j and DS418 registers.
Signed-off-by: Andreas Färber
---
TODO: Identify the bit in ISO_CHIP_INFO1:bound_opts and what it really means.
v1 -> v2:
* Rebased onto iso syscon regmap
drivers/soc/realtek/chip.c | 5 -
1 file changed, 4 insertions(+),
On the HiKey board, where CONFIG_ACPI is not set, we started
to see a graphics regression where the adv7511 HDMI bridge driver
wasn't probing. This was due to the i2c bus failing to start up.
I bisected the problem down to commit f9288fcc5c615 ("i2c:
designware: Move ACPI parts into common
Add a DT node for eFuse.
Signed-off-by: Andreas Färber
---
v2: New
arch/arm64/boot/dts/realtek/rtd139x.dtsi | 10 +-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/realtek/rtd139x.dtsi
b/arch/arm64/boot/dts/realtek/rtd139x.dtsi
index
Detection logic from downstream include/soc/realtek/rtd129x_cpu.h.
Signed-off-by: Andreas Färber
---
Note: We don't have any RTD1294 .dtsi/.dts yet.
v1 -> v2:
* Instead of direct eFuse register access use nvmem cell API
* Warn on errors other than deferred probing
It's "an unsigned" but "a U".
Similarly, "an entry" but "a binary entry".
While at it, also drop superfluous articles for negative and zero.
Fixes: 8b977c5498b8 ("nvmem: core: add nvmem_cell_read_u64")
Fixes: 0a9b2d1ce422 ("nvmem: core: add nvmem_cell_read_u16")
Fixes: d026d70a2e94 ("nvmem:
Replace the local helper with the newly introduced official one.
Cc: Srinivas Kandagatla
Signed-off-by: Andreas Färber
---
This could be squashed if the new API and this commit were to get merged in
subsequent merge windows or with the help of a topic branch.
v2: New
Add the package_id field as sub-node to eFuse and reference it for
chip identification.
Signed-off-by: Andreas Färber
---
v1 -> v2:
* Instead of extending reg, use nvmem-cells reference for eFuse
arch/arm64/boot/dts/realtek/rtd129x.dtsi | 16 +---
1 file changed, 9
Add a DT node for eFuse.
Signed-off-by: Andreas Färber
---
v2: New
arch/arm/boot/dts/rtd1195.dtsi | 8
1 file changed, 8 insertions(+)
diff --git a/arch/arm/boot/dts/rtd1195.dtsi b/arch/arm/boot/dts/rtd1195.dtsi
index 5ad0e81c37af..2ae08f6da9e8 100644
---
On 2020/6/23 上午12:00, Michael S. Tsirkin wrote:
On Wed, Jun 17, 2020 at 11:19:26AM +0800, Jason Wang wrote:
On 2020/6/11 下午7:34, Michael S. Tsirkin wrote:
static void vhost_vq_free_iovecs(struct vhost_virtqueue *vq)
{
kfree(vq->descs);
@@ -394,6 +400,9 @@ static long
Add a DT node for eFuse.
Signed-off-by: Andreas Färber
---
v2: New
arch/arm64/boot/dts/realtek/rtd16xx.dtsi | 8
1 file changed, 8 insertions(+)
diff --git a/arch/arm64/boot/dts/realtek/rtd16xx.dtsi
b/arch/arm64/boot/dts/realtek/rtd16xx.dtsi
index 04cb546142a0..3c955fc7450c 100644
Implement enough of a read-only nvmem driver to easily read efuse cells.
Cc: Cheng-Yu Lee
Signed-off-by: Andreas Färber
---
v2: New
MAINTAINERS | 1 +
drivers/nvmem/Kconfig | 9
drivers/nvmem/Makefile| 2 +
drivers/nvmem/rtk-dhc-efuse.c | 86
Complement the u16, u32 and u64 helpers with a u8 variant to ease
accessing byte-sized values.
This helper will be useful for Realtek Digital Home Center platforms,
which store some byte and sub-byte sized values in non-volatile memory.
Signed-off-by: Andreas Färber
---
v2: New
From: Stanley Chang
Distinguish RTD1392 from RTD1395 via ISO_CHIP_INFO1 register.
Signed-off-by: Stanley Chang
Signed-off-by: Andreas Färber
---
TODO: Name the bit in ISO_CHIP_INFO1:bound_opts.
Note: We don't have any RTD1392 .dtsi/.dts yet.
v2: New
* Split out from Stanley's v1
Add a DT node for eFuse.
Signed-off-by: Andreas Färber
---
v2: New
arch/arm64/boot/dts/realtek/rtd13xx.dtsi | 8
1 file changed, 8 insertions(+)
diff --git a/arch/arm64/boot/dts/realtek/rtd13xx.dtsi
b/arch/arm64/boot/dts/realtek/rtd13xx.dtsi
index e4271ef5cb1e..ed5ee7cc6a44 100644
Allow to optionally specify a phandle to iso syscon to identify the chip.
RTD1295 family will want to check the ISO_CHIP_INFO1 register.
Signed-off-by: Andreas Färber
---
A SoC specific binding would defeat the purpose of the generic Linux driver
detecting the SoC based on registers.
Simply
Define a binding for RTD1195 and later DHC SoCs' chip info registers.
Add the new directory to MAINTAINERS.
Signed-off-by: Andreas Färber
---
Note: The binding gets extended compatibly twice with additional properties.
Could be squashed later if approved.
v1 -> v2:
* Dropped quotes for
Allow to optionally specify nvmem cells to identify the chip.
RTD1295 family will want the eFuse package_id cell.
Signed-off-by: Andreas Färber
---
v1 -> v2:
* Instead of extending reg, allow nvmem-cells reference for eFuse
.../bindings/soc/realtek/realtek,rtd1195-chip.yaml | 12
Add a DT node for eFuse.
Signed-off-by: Andreas Färber
---
v2: New
arch/arm64/boot/dts/realtek/rtd129x.dtsi | 15 +++
1 file changed, 15 insertions(+)
diff --git a/arch/arm64/boot/dts/realtek/rtd129x.dtsi
b/arch/arm64/boot/dts/realtek/rtd129x.dtsi
index
Chip ID from BPi-M4.
Revisions based on downstream drivers/soc/realtek/rtd139x/rtk_chip.c.
Signed-off-by: Andreas Färber
---
v2: New
drivers/soc/realtek/chip.c | 8
1 file changed, 8 insertions(+)
diff --git a/drivers/soc/realtek/chip.c b/drivers/soc/realtek/chip.c
index
Ralph Campbell writes:
> On 6/22/20 4:54 PM, Yang Shi wrote:
>> On Mon, Jun 22, 2020 at 4:02 PM John Hubbard wrote:
>>>
>>> On 2020-06-22 15:33, Yang Shi wrote:
On Mon, Jun 22, 2020 at 3:30 PM Yang Shi wrote:
> On Mon, Jun 22, 2020 at 2:53 PM Zi Yan wrote:
>> On 22 Jun 2020, at
Add a DT binding for eFuse on Realtek Digital Home Center SoCs.
Signed-off-by: Andreas Färber
---
v2: New
.../bindings/nvmem/realtek,rtd1195-efuse.yaml | 53 +++
MAINTAINERS | 1 +
2 files changed, 54 insertions(+)
create mode 100644
Add a DT node for chip identification.
Signed-off-by: Andreas Färber
---
v1 -> v2:
* Rebased onto SB2 syscon
arch/arm/boot/dts/rtd1195.dtsi | 5 +
1 file changed, 5 insertions(+)
diff --git a/arch/arm/boot/dts/rtd1195.dtsi b/arch/arm/boot/dts/rtd1195.dtsi
index
Add a DT node for chip identification.
Acked-by: James Tai
Signed-off-by: Andreas Färber
---
v1 -> v2:
* Rebased onto SB2 syscon
arch/arm64/boot/dts/realtek/rtd129x.dtsi | 5 +
1 file changed, 5 insertions(+)
diff --git a/arch/arm64/boot/dts/realtek/rtd129x.dtsi
Add a DT node for chip identification.
Signed-off-by: Andreas Färber
---
v2: New
arch/arm64/boot/dts/realtek/rtd13xx.dtsi | 7 +++
1 file changed, 7 insertions(+)
diff --git a/arch/arm64/boot/dts/realtek/rtd13xx.dtsi
b/arch/arm64/boot/dts/realtek/rtd13xx.dtsi
index
Revisions based on downstream drivers/soc/realtek/rtd16xx/rtk_chip.c.
Signed-off-by: Andreas Färber
---
v2: New
drivers/soc/realtek/chip.c | 7 +++
1 file changed, 7 insertions(+)
diff --git a/drivers/soc/realtek/chip.c b/drivers/soc/realtek/chip.c
index aa7ca6bb1e64..e3220187e336
skb cannot be NULL here since its already being accessed
before: sock_net(skb->sk). Remove the redundant null check.
Signed-off-by: Gaurav Singh
---
net/dcb/dcbnl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/dcb/dcbnl.c b/net/dcb/dcbnl.c
index
On Thu, Jun 18, 2020 at 09:19:09AM -0700, Tim Harvey wrote:
> Add Gateworks System Controller support to Gateworks Ventana boards:
> - add dt bindings for GSC mfd driver and hwmon driver for ADC's and
> fan controllers.
> - add dt bindings for gpio-keys driver for push-button and interrupt
On Mon, Jun 22, 2020 at 03:27:45PM -0700, Bjorn Andersson wrote:
> SMP2P is used for interrupting and being interrupted about remoteproc
> state changes related to the audio, compute and sensor subsystems.
>
> Signed-off-by: Bjorn Andersson
Reviewed-by: Manivannan Sadhasivam
Thanks,
Mani
>
On Mon, Jun 22, 2020 at 6:45 AM Frank Rowand wrote:
>
> Tim Bird started a thread [1] proposing that he document the selftest result
> format used by Linux kernel tests.
>
> [1]
> https://lore.kernel.org/r/cy4pr13mb1175b804e31e502221bc8163fd...@cy4pr13mb1175.namprd13.prod.outlook.com
>
> The
On Mon, Jun 22, 2020 at 03:27:44PM -0700, Bjorn Andersson wrote:
> Add a node for the QMP AOSS.
>
> Signed-off-by: Bjorn Andersson
Reviewed-by: Manivannan Sadhasivam
Thanks,
Mani
> ---
> arch/arm64/boot/dts/qcom/sm8250.dtsi | 14 ++
> 1 file changed, 14 insertions(+)
>
> diff
Hi Peter,
On Mon, 22 Jun 2020 11:49:23 +0200 Peter Zijlstra wrote:
>
> On Mon, Jun 22, 2020 at 02:37:12AM -0700, syzbot wrote:
> > Hello,
> >
> > syzbot found the following crash on:
> >
> > HEAD commit:27f11fea Add linux-next specific files for 202
On 2020-06-22 15:23, Bjorn Andersson wrote:
On Wed 27 May 13:26 PDT 2020, Rishabh Bhatnagar wrote:
This patch series moves the coredump functionality to a separate
file and adds "inline" coredump feature. Inline coredump directly
copies segments from device memory during coredump to userspace.
On Mon, Jun 22, 2020 at 03:27:43PM -0700, Bjorn Andersson wrote:
> Add the IPCC node, used to send and receive IPC signals with
> remoteprocs.
>
> Signed-off-by: Bjorn Andersson
> ---
> arch/arm64/boot/dts/qcom/sm8250.dtsi | 10 ++
> 1 file changed, 10 insertions(+)
>
> diff --git
On Tue, 2020-06-23 at 12:35 +1000, Alexey Kardashevskiy wrote:
> > I am not sure if this is true in general, but in this device (SR-IOV
> > VF) I am testing it will return 0 windows if the default DMA window is
> > not deleted, and 1 after it's deleted.
>
> Since pHyp can only create windows in
On Mon, Jun 22, 2020 at 03:00:48PM -0700, Bjorn Andersson wrote:
> The SM8250 pinctrl driver provides pin configuration, pin muxing and
> GPIO pin control for many pins on the SM8250 SoC.
>
> Signed-off-by: Bjorn Andersson
Reviewed-by: Manivannan Sadhasivam
Thanks,
Mani
> ---
>
On 23/06/2020 12:31, Leonardo Bras wrote:
> On Tue, 2020-06-23 at 11:11 +1000, Alexey Kardashevskiy wrote:
>>
>> On 23/06/2020 04:59, Leonardo Bras wrote:
>>> Hello Alexey, thanks for the feedback!
>>>
>>> On Mon, 2020-06-22 at 20:02 +1000, Alexey Kardashevskiy wrote:
On 19/06/2020 15:06,
On Mon, Jun 22, 2020 at 08:18:57PM +0100, Matthew Wilcox wrote:
> On Mon, Jun 22, 2020 at 10:32:15AM +1000, Dave Chinner wrote:
> > On Fri, Jun 19, 2020 at 08:50:36AM -0700, Matthew Wilcox wrote:
> > >
> > > This patch lifts the IOCB_CACHED idea expressed by Andreas to the VFS.
> > > The
On Tue, Jun 23, 2020 at 4:02 AM Kees Cook wrote:
>
> Some builds of GCC enable stack protector by default. Simply removing
> the arguments is not sufficient to disable stack protector, as the stack
> protector for those GCC builds must be explicitly disabled. (Removing the
> arguments is left
Changelog:
v2 -> v3
1. Add checking input module parameter value.
2. Change base commit from 5.8/scsi-queue to 5.9/scsi-queue.
3. Cleanup for unused variables and label.
v1 -> v2
1. Change the full boilerplate text to SPDX style.
2. Adopt dynamic allocation for sub-region data structure.
3.
On Tue, 2020-06-23 at 11:11 +1000, Alexey Kardashevskiy wrote:
>
> On 23/06/2020 04:59, Leonardo Bras wrote:
> > Hello Alexey, thanks for the feedback!
> >
> > On Mon, 2020-06-22 at 20:02 +1000, Alexey Kardashevskiy wrote:
> > > On 19/06/2020 15:06, Leonardo Bras wrote:
> > > > On LoPAR "DMA
On 23/06/2020 12:14, Leonardo Bras wrote:
> On Tue, 2020-06-23 at 11:12 +1000, Alexey Kardashevskiy wrote:
> [snip]
> +static int query_ddw_out_sz(struct device_node *par_dn)
Can easily be folded into query_ddw().
>>>
>>> Sure, but it will get inlined by the compiler, and I think
On Mon, 22 Jun 2020 14:10:13 +0900, Masahiro Yamada said:
> > This patch introduces a new build flag 'K=1' which controls whether
> > kerneldoc
> > warnings should be issued, separating them from the compiler warnings that
> > W=
> > controls.
> I do not understand why this change is needed.
On Tue, Jun 16, 2020 at 01:45:27PM -0700, Nitin Gupta wrote:
> For some applications, we need to allocate almost all memory as
> hugepages. However, on a running system, higher-order allocations can
> fail if the memory is fragmented. Linux kernel currently does on-demand
> compaction as we
On Tue, 2020-06-23 at 11:33 +1000, Oliver O'Halloran wrote:
> On Tue, Jun 23, 2020 at 11:12 AM Alexey Kardashevskiy wrote:
> > On 23/06/2020 04:59, Leonardo Bras wrote:
> > > > Also, despite this particular file, the "pdn" name is usually used for
> > > > struct pci_dn (not device_node), let's
On Tue, 2020-06-23 at 11:12 +1000, Alexey Kardashevskiy wrote:
>
> On 23/06/2020 04:59, Leonardo Bras wrote:
> > Hello Alexey, thanks for the feedback!
> >
> > On Mon, 2020-06-22 at 20:02 +1000, Alexey Kardashevskiy wrote:
> > > On 19/06/2020 15:06, Leonardo Bras wrote:
> > > > Move the
Hi Dan
On Tuesday, June 23, 2020 2:20 AM, Dan Carpenter wrote:
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot
> Reported-by: Dan Carpenter
>
> New smatch warnings:
> drivers/usb/gadget/udc/fsl_udc_core.c:1055 fsl_ep_fifo_status() error:
On Tue, 2020-06-23 at 11:11 +1000, Alexey Kardashevskiy wrote:
>
> On 23/06/2020 04:58, Leonardo Bras wrote:
> > Hello Alexey, thanks for the feedback!
> >
> > On Mon, 2020-06-22 at 20:02 +1000, Alexey Kardashevskiy wrote:
> > > On 19/06/2020 15:06, Leonardo Bras wrote:
> > > > Platforms
On 6/22/20 8:07 PM, Jens Axboe wrote:
> On 6/22/20 4:16 PM, Pavel Begunkov wrote:
>> io_do_iopoll() won't do anything with a request unless
>> req->iopoll_completed is set. So io_complete_rw_iopoll() has to set
>> it, otherwise io_do_iopoll() will poll a file again and again even
>> though the
On 2020-06-22 05:27, Luis Chamberlain wrote:
> Note: this will bring you sanity if you try to figure out *why* we still
> get:
>
> [235530.144343] debugfs: Directory 'loop0' with parent 'block' already
> present!
> [235530.149477] blktrace: debugfs_dir not present for loop0 so skipping
>
Hi James,
Am 21.06.20 um 01:32 schrieb Andreas Färber:
From: James Tai
Add Device Trees for Realtek RTD1319 SoC family, RTD1319 SoC and
Realtek Pym Particles EVB.
Signed-off-by: James Tai
Signed-off-by: Andreas Färber
---
v3 -> v4:
* Updated Realtek copyright for 2 out of 3 files from
On Tue, 2020-06-23 at 11:12 +1000, Alexey Kardashevskiy wrote:
[snip]
> > > > +static int query_ddw_out_sz(struct device_node *par_dn)
> > >
> > > Can easily be folded into query_ddw().
> >
> > Sure, but it will get inlined by the compiler, and I think it reads
> > better this way.
> > I mean,
> From: Nathan Chancellor
> Sent: Tuesday, June 23, 2020 9:04 AM
>
> When CONFIG_PM and CONFIG_PM_SLEEP are unset, the following warnings
> occur:
>
> drivers/mailbox/imx-mailbox.c:638:12: warning: 'imx_mu_runtime_resume'
> defined but not used [-Wunused-function]
> 638 | static int
On 6/22/20 4:16 PM, Pavel Begunkov wrote:
> io_do_iopoll() won't do anything with a request unless
> req->iopoll_completed is set. So io_complete_rw_iopoll() has to set
> it, otherwise io_do_iopoll() will poll a file again and again even
> though the request of interest was completed long ago.
I
Quoting peng@nxp.com (2020-06-02 20:36:00)
> From: Peng Fan
>
> Add mu root clk for mu mailbox usage.
>
> Reviewed-by: Dong Aisheng
> Signed-off-by: Peng Fan
> ---
Acked-by: Stephen Boyd
Quoting Adam Ford (2020-06-03 08:43:29)
> The existing driver is expecting the Versaclock to be pre-programmed,
> and only sets the output frequency. Unfortunately, not all devices
> are pre-programmed, and the Versaclock chip has more options beyond
> just the frequency.
>
> This patch enables
Quoting Adam Ford (2020-06-03 08:43:28)
> The VersaClock driver now supports some additional bindings to support
> child nodes which can configure optional settings like mode, voltage
> and slew.
>
> This patch updates the binding document to describe what is available
> in the driver.
>
>
> -Original Message-
> From: Nathan Chancellor [mailto:natechancel...@gmail.com]
> Sent: Tuesday, June 23, 2020 1:59 PM
> To: Andrew Morton
> Cc: linux...@kvack.org; linux-kernel@vger.kernel.org;
> clang-built-li...@googlegroups.com; Song Bao Hua (Barry Song)
> ; Nathan Chancellor
>
>
Quoting Adam Ford (2020-06-03 08:43:27)
> Currently, the Versaclock driver is only expecting one instance and
> uses hard-coded names for the various clock names. Unfortunately,
> this is a problem when there is more than one instance of the driver,
> because the subsequent instantiations of the
Quoting Vincent Knecht (2020-06-13 00:27:43)
> Acked-by: Rob Herring
> Signed-off-by: Vincent Knecht
> ---
Applied to clk-next
Quoting Vincent Knecht (2020-06-13 00:27:42)
> Add missing definition of rpm clk for msm8936 soc (also used by msm8939)
>
> Signed-off-by: Vincent Knecht
> ---
Applied to clk-next
Obj_cgroup API provides an ability to account sub-page sized kernel
objects, which potentially outlive the original memory cgroup.
The top-level API consists of the following functions:
bool obj_cgroup_tryget(struct obj_cgroup *objcg);
void obj_cgroup_get(struct obj_cgroup *objcg);
void
In order to prepare for per-object slab memory accounting, convert
NR_SLAB_RECLAIMABLE and NR_SLAB_UNRECLAIMABLE vmstat items to bytes.
To make it obvious, rename them to NR_SLAB_RECLAIMABLE_B and
NR_SLAB_UNRECLAIMABLE_B (similar to NR_KERNEL_STACK_KB).
Internally global and per-node counters
Deprecate memory.kmem.slabinfo.
An empty file will be presented if corresponding config options are
enabled.
The interface is implementation dependent, isn't present in cgroup v2, and
is generally useful only for core mm debugging purposes. In other words,
it doesn't provide any value for the
Instead of having two sets of kmem_caches: one for system-wide and
non-accounted allocations and the second one shared by all accounted
allocations, we can use just one.
The idea is simple: space for obj_cgroup metadata can be allocated on
demand and filled only for accounted allocations.
It
To implement per-object slab memory accounting, we need to convert slab
vmstat counters to bytes. Actually, out of 4 levels of counters: global,
per-node, per-memcg and per-lruvec only two last levels will require
byte-sized counters. It's because global and per-node counters will be
counting
This is v7 of the slab cgroup controller rework.
The patchset moves the accounting from the page level to the object
level. It allows to share slab pages between memory cgroups.
This leads to a significant win in the slab utilization (up to 45%)
and the corresponding drop in the total kernel
memcg_accumulate_slabinfo() is never called with a non-root kmem_cache as
a first argument, so the is_root_cache(s) check is redundant and can be
removed without any functional change.
Signed-off-by: Roman Gushchin
Reviewed-by: Vlastimil Babka
Reviewed-by: Shakeel Butt
---
mm/slab_common.c |
clang warns:
mm/cma.c:55:14: warning: address of array 'cma->name' will always
evaluate to 'true' [-Wpointer-bool-conversion]
return cma->name ? cma->name : "(undefined)";
~^~~~ ~
1 warning generated.
After commit e7f0557d7de9 ("mm: cma: fix the name of CMA areas"),
Switch to per-object accounting of non-root slab objects.
Charging is performed using obj_cgroup API in the pre_alloc hook.
Obj_cgroup is charged with the size of the object and the size of
metadata: as now it's the size of an obj_cgroup pointer. If the amount of
memory has been charged
Because the number of non-root kmem_caches doesn't depend on the number of
memory cgroups anymore and is generally not very big, there is no more
need for a dedicated workqueue.
Also, as there is no more need to pass any arguments to the
memcg_create_kmem_cache() except the root kmem_cache, it's
This is fairly big but mostly red patch, which makes all accounted slab
allocations use a single set of kmem_caches instead of creating a separate
set for each memory cgroup.
Because the number of non-root kmem_caches is now capped by the number of
root kmem_caches, there is no need to shrink or
The memcg_kmem_get_cache() function became really trivial, so let's just
inline it into the single call point: memcg_slab_pre_alloc_hook().
It will make the code less bulky and can also help the compiler to
generate a better code.
Signed-off-by: Roman Gushchin
Reviewed-by: Vlastimil Babka
Currently there are two lists of kmem_caches:
1) slab_caches, which contains all kmem_caches,
2) slab_root_caches, which contains only root kmem_caches.
And there is some preprocessor magic to have a single list if
CONFIG_MEMCG_KMEM isn't enabled.
It was required earlier because the number of
Quoting Konrad Dybcio (2020-06-22 02:02:52)
> Add rpm smd clocks, PMIC and bus clocks which are required on
> SDM630/660 (and APQ variants) for clients to vote on.
>
> changes since v2:
> - separate from SDM630 enablement series
> - fix indentation in Docs
> - sort compatible strings
This commit implements SLUB version of the obj_to_index() function, which
will be required to calculate the offset of obj_cgroup in the obj_cgroups
vector to store/obtain the objcg ownership data.
To make it faster, let's repeat the SLAB's trick introduced by commit
6a2d7a955d8d ("SLAB: use a
To make the memcg_kmem_bypass() function available outside of the
memcontrol.c, let's move it to memcontrol.h. The function is small and
nicely fits into static inline sort of functions.
It will be used from the slab code.
Signed-off-by: Roman Gushchin
Reviewed-by: Vlastimil Babka
Store the obj_cgroup pointer in the corresponding place of
page->obj_cgroups for each allocated non-root slab object. Make sure that
each allocated object holds a reference to obj_cgroup.
Objcg pointer is obtained from the memcg->objcg dereferencing in
memcg_kmem_get_cache() and passed from
From: Johannes Weiner
The reference counting of a memcg is currently coupled directly to how
many 4k pages are charged to it. This doesn't work well with Roman's new
slab controller, which maintains pools of objects and doesn't want to keep
an extra balance sheet for the pages backing those
Add some tests to cover the kernel memory accounting functionality. These
are covering some issues (and changes) we had recently.
1) A test which allocates a lot of negative dentries, checks memcg slab
statistics, creates memory pressure by setting memory.max to some low
value and checks
Allocate and release memory to store obj_cgroup pointers for each non-root
slab page. Reuse page->mem_cgroup pointer to store a pointer to the
allocated space.
This commit temporarily increases the memory footprint of the kernel memory
accounting. To store obj_cgroup pointers we'll need a place
To convert memcg and lruvec slab counters to bytes there must be a way to
change these counters without touching node counters. Factor out
__mod_memcg_lruvec_state() out of __mod_lruvec_state().
Signed-off-by: Roman Gushchin
Acked-by: Johannes Weiner
Reviewed-by: Vlastimil Babka
Reviewed-by:
On Mon, Jun 22, 2020 at 09:45:35PM +0200, Rafael J. Wysocki wrote:
> On Mon, Jun 22, 2020 at 7:16 PM Chen Yu wrote:
> >
> > Hi Rafael,
> > On Mon, Jun 22, 2020 at 06:19:35PM +0200, Rafael J. Wysocki wrote:
> > [cut]
> > > > +{
> > > > + if (!current_clr_polling_and_test())
> > > > +
On Sat, Jun 20, 2020 at 01:13:56PM +0300, Andy Shevchenko wrote:
> On Sat, Jun 20, 2020 at 1:12 AM Serge Semin wrote:
> > On Thu, Jun 18, 2020 at 11:56:54AM +0300, Andy Shevchenko wrote:
> > > On Wed, Jun 17, 2020 at 01:56:48AM +0300, Serge Semin wrote:
> > > > On Wed, Jun 17, 2020 at 12:40:35AM
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