On Thu, Aug 13, 2020 at 04:43:33PM +0800, Wu, Hao wrote:
> > Subject: [PATCH v5 3/3] fpga: dfl: add support for N3000 Nios private
> > feature
> >
> > This patch adds support for the Nios handshake private feature on Intel
> > PAC (Programmable Acceleration Card) N3000.
> >
> > The Nios is the
From: ChiYuan Huang
Adds support for the RT4801 DSV. It has two regulators (DSVP/DSVN) with an I2C
interface. DSVP/DSVN can provide the display panel module for the
positive/negative
voltage range from (+/-)4V to (+/-)6V.
---
.../regulator/richtek,rt4801-regulator.yaml| 80
On Mon, Aug 3, 2020 at 4:06 AM Robin Murphy wrote:
>
> On 2020-07-29 06:16, John Stultz wrote:
> > This adds a heap that allocates non-contiguous buffers that are
> > marked as writecombined, so they are not cached by the CPU.
> >
...
> > + ret = sg_alloc_table(new_table, table->nents,
Nothing prevents flush_cache_instruction() from being writen in C.
Do it to improve readability and maintainability.
This function is very small and isn't called from assembly,
make it static inline in asm/cacheflush.h
Signed-off-by: Christophe Leroy
---
v2: Written as a static inline instead
The only callers of flush_instruction_cache() are:
arch/powerpc/kernel/swsusp_booke.S: bl flush_instruction_cache
arch/powerpc/mm/nohash/40x.c: flush_instruction_cache();
arch/powerpc/mm/nohash/44x.c: flush_instruction_cache();
arch/powerpc/mm/nohash/fsl_booke.c:
flush_instruction_cache() belongs to the cache flushing function
family.
Move its prototype in asm/cacheflush.h
Signed-off-by: Christophe Leroy
---
v2: new
---
arch/powerpc/include/asm/cacheflush.h | 2 ++
arch/powerpc/include/asm/processor.h | 1 -
Nothing prevents flush_cache_instruction() from being writen in C.
Do it to improve readability and maintainability.
This function is only use by low level callers, it is not
intended to be used by module. Don't export it.
Signed-off-by: Christophe Leroy
---
arch/powerpc/kernel/misc_32.S
If a memory allocation fails within a 'usb_ep_alloc_request()' call, the
already allocated memory must be released.
Fix a mix-up in the code and free the correct requests.
Fixes: c52661d60f63 ("usb-gadget: Initial merge of target module for UASP +
BOT")
Signed-off-by: Christophe JAILLET
---
Le 13/08/2020 à 14:14, Christoph Hellwig a écrit :
On Thu, Aug 13, 2020 at 01:13:08PM +0100, Christoph Hellwig wrote:
On Thu, Aug 13, 2020 at 10:12:00AM +, Christophe Leroy wrote:
-#ifndef CONFIG_PPC_8xx
+#if !defined(CONFIG_PPC_8xx) && !defined(CONFIG_PPC_BOOK3S_32)
On 8/14/20 9:13 AM, Ian Rogers wrote:
> On Thu, Aug 13, 2020 at 3:21 PM Paul A. Clarke wrote:
>>
>> These changes take advantage of the new capability added in
>> merge commit 00e4db51259a5f936fec1424b884f029479d3981
>> "Allow using computed metrics in calculating other metrics".
>>
>> The net
On 08/13/20 at 08:45pm, Youling Tang wrote:
> Regardless of whether the ret value is zero or non-zero, the trajectory
> of the program execution is the same, so there is no need to compare.
>
> Signed-off-by: Youling Tang
> ---
> kernel/kexec_file.c | 2 --
> 1 file changed, 2 deletions(-)
>
>
flush_instruction_cache() is never used on 8xx, remove it.
Signed-off-by: Christophe Leroy
---
v2: Becomes a standalone patch independant of the series dismantling the ASM
flush_instruction_cache()
---
arch/powerpc/mm/nohash/8xx.c | 7 ---
1 file changed, 7 deletions(-)
diff --git
On Thu, Aug 13, 2020 at 10:28 PM Christoph Hellwig wrote:
> > One intended usage is to allow processes to self-document sockets
> > for netstat and friends to report
>
> NAK. There is no way we're going to bloat a criticial structure like
> struct file for some vanity information like this.
The
Add DMA controller driver for Lightning Mountain(LGM) family of SoCs.
The main function of the DMA controller is the transfer of data from/to any
DPlus compliant peripheral to/from the memory. A memory to memory copy
capability can also be configured.
This ldma driver is used for configure the
On Thu, Aug 13, 2020 at 12:02:41PM -0700, Linus Torvalds wrote:
> Yeah, that's ridiculously expensive, and serializes things for no good reason.
>
> Your patch looks obviously correct to me (Christoph?),
It also looks correct to me.
> but it also
> makes me go "why are we doing this in the
LTR (Long Term Reference) frames are the frames that are encoded
sometime in the past and stored in the DPB buffer list to be used
as reference to encode future frames.
This change adds controls to enable this feature.
Signed-off-by: Dikshita Agarwal
---
On Thu, Aug 13, 2020 at 08:54:53PM -0700, Pascal Bouchareine wrote:
> This command attaches a description to a file descriptor for
> troubleshooting purposes. The free string is displayed in the
> process fdinfo file for that fd /proc/pid/fdinfo/fd.
>
> One intended usage is to allow processes to
Add DMA controller driver for Lightning Mountain(LGM) family of SoCs.
The main function of the DMA controller is the transfer of data from/to any
DPlus compliant peripheral to/from the memory. A memory to memory copy
capability can also be configured.
This ldma driver is used for configure the
Add DT bindings YAML schema for DMA controller driver
of Lightning Mountain(LGM) SoC.
Signed-off-by: Amireddy Mallikarjuna reddy
---
v1:
- Initial version.
v2:
- Fix bot errors.
v3:
- No change.
v4:
- Address Thomas langer comments
- use node name pattern as dma-controller as in common
On 2020/8/14 12:04, benbjiang(蒋彪) wrote:
>
>
>> On Aug 14, 2020, at 9:36 AM, Li, Aubrey wrote:
>>
>> On 2020/8/14 8:26, benbjiang(蒋彪) wrote:
>>>
>>>
On Aug 13, 2020, at 12:28 PM, Li, Aubrey wrote:
On 2020/8/13 7:08, Joel Fernandes wrote:
> On Wed, Aug 12, 2020 at 10:01:24AM
'xhci_urb_enqueue()' is passed a 'mem_flags' argument, because "URBs may be
submitted in interrupt context" (see comment related to 'usb_submit_urb()'
in 'drivers/usb/core/urb.c')
So this flag should be used in all the calling chain.
Up to now, 'xhci_check_maxpacket()' which is only called from
On 2020-08-13 20:33, Douglas Anderson wrote:
Add an entry for SC7180 SoC.
Signed-off-by: Douglas Anderson
---
drivers/soc/qcom/socinfo.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/soc/qcom/socinfo.c b/drivers/soc/qcom/socinfo.c
index e19102f46302..e56eea29615c 100644
---
__raise_softirq_irqoff() will update per-CPU mask of pending softirqs,
it need to be called in irq disabled context in order to keep it atomic
operation, otherwise it will be interrupted by hardware interrupt,
and per-CPU softirqs pending mask will be corrupted, the result is
there will be
Hi Linus,
Please pull Kconfig updates for v5.9-rc1
Thanks.
The following changes since commit bcf876870b95592b52519ed4aafcf9d95999bc9c:
Linux 5.8 (2020-08-02 14:21:45 -0700)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild.git
The Flex Book uses the same ALC298 codec as other Samsung laptops which
have the no headphone sound bug, like my Samsung Notebook. The Flex Book
owner used Early Patching to confirm that this quirk fixes the bug.
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=207423
Signed-off-by: Mike
On 8/12/20 5:12 PM, Bingbu Cao wrote:
>
>
> On 8/10/20 10:27 PM, Sakari Ailus wrote:
>> Tell ACPI device PM code that the driver supports the device being in a
>> low power state when the driver's probe function is entered.
>>
>> Signed-off-by: Sakari Ailus
>> ---
>>
On 2020-08-13 23:29, Marc Zyngier wrote:
On 2020-08-13 13:33, Sai Prakash Ranjan wrote:
On 2020-08-13 16:09, Marc Zyngier wrote:
On 2020-08-13 10:40, Will Deacon wrote:
On Thu, Aug 13, 2020 at 02:49:37PM +0530, Sai Prakash Ranjan wrote:
On 2020-08-13 14:33, Will Deacon wrote:
> On Thu, Aug
On 8/13/20 2:35 AM, Xin Long wrote:
> On Wed, Aug 12, 2020 at 7:21 AM kernel test robot wrote:
>>
>> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
>> master
>> head: c636eef2ee3696f261a35f34989842701a107895
>> commit: 5a6f6f579178dbeb33002d93b4f646c31348fac9 tipc:
> From: Steven Rostedt
> Sent: Thursday, August 13, 2020 10:57 PM
>
> On Thu, 13 Aug 2020 03:03:46 +
> Jiafei Pan wrote:
>
> > Any comments? Thanks.
> >
> > @Steven Rostedt, I thinks irq off checking is necessary especially
>
> This is probably more for Thomas Gleixner.
>
> > for
On 8/10/20 10:27 PM, Sakari Ailus wrote:
> Hi all,
>
...snip...
>
> The use case is such that there is a privacy LED next to an integrated
> user-facing laptop camera, and this LED is there to signal the user that
> the camera is recording a video or capturing images. That LED also happens
>
Fix the following build errors:
In file included from ./include/linux/time.h:6:0,
from ./include/linux/compat.h:10,
from arch/mips/kernel/asm-offsets.c:12:
./include/linux/seqlock.h: In function ???write_seqcount_begin_nested???:
./include/linux/seqlock.h:286:2:
> On Aug 14, 2020, at 9:36 AM, Li, Aubrey wrote:
>
> On 2020/8/14 8:26, benbjiang(蒋彪) wrote:
>>
>>
>>> On Aug 13, 2020, at 12:28 PM, Li, Aubrey wrote:
>>>
>>> On 2020/8/13 7:08, Joel Fernandes wrote:
On Wed, Aug 12, 2020 at 10:01:24AM +0800, Li, Aubrey wrote:
> Hi Joel,
>
Let caller specify allocation.
Keep the existing calls with GFP_USER, and enforce the existing
defense against log spam from userspace with __GFP_NOWARN.
Signed-off-by: Pascal Bouchareine
---
drivers/dma-buf/dma-buf.c | 2 +-
drivers/gpu/drm/i915/i915_debugfs_params.c | 2 +-
This is a first attempt at taking Alexey's comments into account
This goes against v5.8
tl;dr in commit 2/2 but motivation is also described a bit in
https://lore.kernel.org/linux-api/CAGbU3_nVvuzMn2wo4_ZKufWcGfmGsopVujzTWw-Bbeky=xs...@mail.gmail.com/
This command attaches a description to a file descriptor for
troubleshooting purposes. The free string is displayed in the
process fdinfo file for that fd /proc/pid/fdinfo/fd.
One intended usage is to allow processes to self-document sockets
for netstat and friends to report
Signed-off-by:
From: Qiwu Huang
Reports what type of wireless adapter connection is
currently active for the supply.
for example it can show if ADAPTER_PD capable source is attached.
Signed-off-by: Qiwu Huang
---
Documentation/ABI/testing/sysfs-class-power | 28 +
From: Qiwu Huang
Interface to control wireless reverse charge.
Signed-off-by: Qiwu Huang
---
Documentation/ABI/testing/sysfs-class-power | 14 ++
drivers/power/supply/power_supply_sysfs.c | 1 +
include/linux/power_supply.h| 1 +
3 files changed, 16
From: Qiwu Huang
reports wireless signal strength.
The value show degree of coupling between tx and rx.
Signed-off-by: Qiwu Huang
---
Documentation/ABI/testing/sysfs-class-power | 22 +
drivers/power/supply/power_supply_sysfs.c | 1 +
include/linux/power_supply.h
From: Qiwu Huang
This patchset aims to provide power supply properties about wireless/wired
charging.
"quick_charge_type" reports different types of quick charge based on the
charging power;
"tx_adapter" shows" the type of wireless charging adapter;
"signal_strength" shows the coupling level
From: Qiwu Huang
Reports the kind of quick charge type based on
different adapter power.
Signed-off-by: Qiwu Huang
---
Documentation/ABI/testing/sysfs-class-power | 21 +
drivers/power/supply/power_supply_sysfs.c | 1 +
drivers/power/supply/qcom_smbb.c| 51
On Thu, Aug 13, 2020 at 3:21 PM Paul A. Clarke wrote:
>
> These changes take advantage of the new capability added in
> merge commit 00e4db51259a5f936fec1424b884f029479d3981
> "Allow using computed metrics in calculating other metrics".
>
> The net is a simplification of the expressions for a
On (20/08/13 12:35), John Ogness wrote:
> I believe I failed to recognize the fundamental problem. The fundamental
> problem is that the pr_cont() semantics are very poor.
The semantics is pretty clear - use it only in UP early bootup,
anything else is broken :)
/*
* Annotation for a
> From: Peter Zijlstra
> Sent: Thursday, August 13, 2020 1:58 PM
>
> On Thu, Aug 06, 2020 at 12:07:29PM +0800, Jiafei Pan wrote:
> > __raise_softirq_irqoff will update per-CPU mask of pending softirqs,
> > it need to be called in irq disabled context in order to keep it
> > atomic operation,
On Fri, Aug 14, 2020 at 10:45:37AM +0800, Zhaoyang Huang wrote:
> On Fri, Aug 14, 2020 at 10:33 AM Andrew Morton
> wrote:
> >
> > On Fri, 14 Aug 2020 10:20:11 +0800 Zhaoyang Huang
> > wrote:
> >
> > > On Fri, Aug 14, 2020 at 10:07 AM Matthew Wilcox
> > > wrote:
> > > >
> > > > On Fri, Aug 14,
The pull request you sent on Thu, 13 Aug 2020 16:10:57 -0700 (PDT):
> git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git refs/heads/master
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/a1d21081a60dfb7fddf4a38b66d9cef603b317a9
Thank you!
--
Deet-doot-dot,
Hi,
On Thu, Aug 13, 2020 at 7:07 PM Thomas Gleixner wrote:
>
> Doug,
>
> On Thu, Aug 13 2020 at 15:58, Doug Anderson wrote:
> > On Thu, Aug 13, 2020 at 3:09 PM Thomas Gleixner wrote:
> >> > * If this interrupt fires while the system is suspended then please
> >> > wake the system up.
> >>
> >>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
master
head: dddcbc139e96bd18d8c65ef7b7e440f0d32457c2
commit: 5e6a9760f7da4dd86cca43ac6423695d6cb0dff4 scsi: smartpqi: add module
param for exposure order
date: 12 months ago
config: ia64-randconfig-m031-20200811
Hi all,
News: The merge window has opened, so please do not add any v5.10
related material to your linux-next included branches until after the
merge window closes again.
Changes since 20200813:
My fixes tree contains:
73c7adb54169 ("device_cgroup: Fix RCU list debugging warning&quo
Rename nlines to num_lines to be consistent with other usage for fields
describing the number of entries in an array.
Signed-off-by: Kent Gibson
---
tools/gpio/gpio-hammer.c | 26 +-
tools/gpio/gpio-utils.c | 20 ++--
tools/gpio/gpio-utils.h | 6 +++---
Extend gpio-event-mon to support monitoring multiple lines.
This would require multiple lineevent requests to implement using uAPI v1,
but can be performed with a single line request using uAPI v2.
Signed-off-by: Kent Gibson
---
tools/gpio/gpio-event-mon.c | 45
Add support for debouncing monitored lines to gpio-event-mon.
Signed-off-by: Kent Gibson
---
tools/gpio/gpio-event-mon.c | 20 +---
1 file changed, 17 insertions(+), 3 deletions(-)
diff --git a/tools/gpio/gpio-event-mon.c b/tools/gpio/gpio-event-mon.c
index
Port the gpio-event-mon tool to the latest GPIO uAPI.
Signed-off-by: Kent Gibson
---
tools/gpio/gpio-event-mon.c | 91 +++--
1 file changed, 47 insertions(+), 44 deletions(-)
diff --git a/tools/gpio/gpio-event-mon.c b/tools/gpio/gpio-event-mon.c
index
Port the lsgpio tool to the latest GPIO uAPI.
Signed-off-by: Kent Gibson
---
tools/gpio/lsgpio.c | 60 -
1 file changed, 38 insertions(+), 22 deletions(-)
diff --git a/tools/gpio/lsgpio.c b/tools/gpio/lsgpio.c
index b08d7a5e779b..deda38244026 100644
Add support for edge detection to lines requested using
GPIO_V2_GET_LINE_IOCTL.
Signed-off-by: Kent Gibson
---
The edge_detector implementation is based on the v1 lineevent implementation.
drivers/gpio/gpiolib-cdev.c | 316 +++-
drivers/gpio/gpiolib.c |
Add support for the GPIO_V2_LINE_SET_VALUES_IOCTL.
Signed-off-by: Kent Gibson
---
drivers/gpio/gpiolib-cdev.c | 67 +
1 file changed, 67 insertions(+)
diff --git a/drivers/gpio/gpiolib-cdev.c b/drivers/gpio/gpiolib-cdev.c
index 04472c2b6678..de88b7a5ba0f
Add support for setting debounce on a line via the GPIO uAPI.
Where debounce is not supported by hardware, a software debounce is
provided.
Signed-off-by: Kent Gibson
---
The implementation of the software debouncer waits for the line to be
stable for the debounce period before determining if a
Port the gpio-hammer tool to the latest GPIO uAPI.
Signed-off-by: Kent Gibson
---
tools/gpio/gpio-hammer.c | 32 +++
tools/gpio/gpio-utils.c | 119 ++-
tools/gpio/gpio-utils.h | 50 +---
3 files changed, 128 insertions(+), 73
Port the gpio-watch tool to the latest GPIO uAPI.
Signed-off-by: Kent Gibson
---
tools/gpio/gpio-watch.c | 16
1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/tools/gpio/gpio-watch.c b/tools/gpio/gpio-watch.c
index 5cea24fddfa7..6f048350a27e 100644
---
Add support for GPIO_V2_LINE_SET_CONFIG_IOCTL, the uAPI v2
line set config ioctl.
Signed-off-by: Kent Gibson
---
drivers/gpio/gpiolib-cdev.c | 92 +
1 file changed, 92 insertions(+)
diff --git a/drivers/gpio/gpiolib-cdev.c b/drivers/gpio/gpiolib-cdev.c
index
Update uAPI documentation to deprecate v1 structs and ioctls.
Signed-off-by: Kent Gibson
---
include/uapi/linux/gpio.h | 26 ++
1 file changed, 26 insertions(+)
diff --git a/include/uapi/linux/gpio.h b/include/uapi/linux/gpio.h
index 0eb1f53b47e0..4af67415d73e 100644
Add support for GPIO_V2_GET_LINEINFO_IOCTL and
GPIO_V2_GET_LINEINFO_WATCH_IOCTL.
Signed-off-by: Kent Gibson
---
The core of this change is the event kfifo switching to contain
struct gpioline_info_changed_v2, instead of v1 as v2 is richer.
The two uAPI versions are mostly independent - other
Add a build option to allow the removal of the CDEV v1 ABI.
Suggested-by: Bartosz Golaszewski
Signed-off-by: Kent Gibson
---
This patch is before the v2 implementation, and is non-functional until
that patch, as some parts of that patch would be written slightly
differently if removing v1 was
Add support for requesting lines using the GPIO_V2_GET_LINE_IOCTL, and
returning their current values using GPIO_V2_LINE_GET_VALUES_IOCTL.
Signed-off-by: Kent Gibson
---
The struct line implementation is based on the v1 struct linehandle
implementation.
The line_ioctl() is a simple wrapper
On Thu, 13 Aug 2020 19:38:18 -0700
Andrew Morton wrote:
> On Thu, 13 Aug 2020 18:30:50 -0400 Steven Rostedt wrote:
>
> > From: Steven Rostedt (VMware)
> >
> > While reviewing some patches for bootconfig, I noticed the following
> > code in xbc_node_compose_key_after():
> >
> > ret =
Replace constant array sizes with a macro constant to clarify the source
of array sizes, provide a place to document any constraints on the size,
and to simplify array sizing in userspace if constructing structs
from their composite fields.
Signed-off-by: Kent Gibson
---
Make the gpiolib-cdev module a build option. This allows the CDEV
interface to be removed from the kernel to reduce kernel size in
applications where is it not required, and provides the parent for
other other CDEV interface specific build options to follow.
Suggested-by: Bartosz Golaszewski
Add a new version of the uAPI to address existing 32/64-bit alignment
issues, add support for debounce and event sequence numbers, allow
requested lines with different configurations, and provide some future
proofing by adding padding reserved for future use.
The alignment issue relates to the
Replace usage of strncpy with strscpy to remove -Wstringop-truncation
warnings.
The structs being populated are zeroed, to prevent stack leakage as
they are returned to userspace, so strscpy performs the equivalent
function without the warnings.
Reported-by: kernel test robot
Signed-off-by:
nvmem device read/write could be called directly once nvmem
device registered, the sanity check should be done before each
nvmem_reg_read/write().
Signed-off-by: Bingbu Cao
---
drivers/nvmem/core.c | 6 ++
1 file changed, 6 insertions(+)
diff --git a/drivers/nvmem/core.c
Set the value of the line info offset in desc_to_lineinfo, rather than
relying on it being passed in the info. This makes the function behave
as you would expect from the name - it generates the line info
corresponding to a given GPIO desc.
Signed-off-by: Kent Gibson
---
There are some
Current sysrq(t) output task fields name are not aligned with
actual task fields value, e.g.:
kernel: sysrq: Show State
kernel: taskPC stack pid father
kernel: systemd S12456 1 0 0x
kernel: Call Trace:
This patchset defines and implements adds a new version of the
GPIO CDEV uAPI to address existing 32/64-bit alignment issues, add
support for debounce, event sequence numbers, and allowing for requested
lines with different configurations.
It provides some future proofing by adding optional
After commit 70b838292bef ("MIPS: Update default config file for
Loongson-3"), CONFIG_VHOST_SCSI and CONFIG_VHOST are set when use
loongson3_defconfig, and then there exists the following two build
warnings related with these two configs, set CONFIG_FRAME_WARN=2048
in loongson3_defconfig to fix
syzbot has bisected this issue to:
commit a51486266c3ba8e035a47fa96df67f274fe0c7d0
Author: Jiri Pirko
Date: Sat Jun 15 09:03:49 2019 +
net: sched: remove NET_CLS_IND config option
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1746350990
start commit: 1ca0fafd
On 2020-08-13 01:55, Stanley Chu wrote:
> I tried many ways to come out the final solution. Currently two options
> are considered,
>
> == Option 1 ==
> pm_runtime_get_sync(hba->dev);
>
> shost_for_each_device(sdev, hba->host) {
> scsi_autopm_get_device(sdev);
>
Hi,
I'm seeing a problem with accessing spi-nor after upgrading a T2081
based system to linux v5.7.15
For this board u-boot and the u-boot environment live on spi-nor.
When I use fw_setenv from userspace I get the following kernel logs
# fw_setenv foo=1
fsl_espi ffe11.spi: Transfer done
On Fri, Aug 14, 2020 at 10:33 AM Andrew Morton
wrote:
>
> On Fri, 14 Aug 2020 10:20:11 +0800 Zhaoyang Huang
> wrote:
>
> > On Fri, Aug 14, 2020 at 10:07 AM Matthew Wilcox wrote:
> > >
> > > On Fri, Aug 14, 2020 at 02:43:55AM +0100, Matthew Wilcox wrote:
> > > > On Fri, Aug 14, 2020 at
From: Jordan Crouse
Add support for using per-instance pagetables if all the dependencies are
available.
Signed-off-by: Jordan Crouse
Signed-off-by: Rob Clark
---
drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 70 +++
drivers/gpu/drm/msm/adreno/a6xx_gpu.h | 1 +
From: Jordan Crouse
Set the qcom,adreno-smmu compatible string for the GPU SMMU to enable
split pagetables and per-instance pagetables for drm/msm.
Signed-off-by: Jordan Crouse
Signed-off-by: Rob Clark
---
arch/arm64/boot/dts/qcom/sdm845.dtsi | 2 +-
1 file changed, 1 insertion(+), 1
From: Jordan Crouse
Add support for allocating private address space instances. Targets that
support per-context pagetables should implement their own function to
allocate private address spaces.
The default will return a pointer to the global address space.
Signed-off-by: Jordan Crouse
From: Jordan Crouse
Use the aperture settings from the IOMMU domain to set up the virtual
address range for the GPU. This allows us to transparently deal with
IOMMU side features (like split pagetables).
Signed-off-by: Jordan Crouse
Signed-off-by: Rob Clark
---
From: Jordan Crouse
Add support to create a io-pgtable for use by targets that support
per-instance pagetables. In order to support per-instance pagetables the
GPU SMMU device needs to have the qcom,adreno-smmu compatible string and
split pagetables enabled.
Signed-off-by: Jordan Crouse
From: Rob Clark
For the Adreno GPU's SMMU, we want SCTLR.HUPCF set to ensure that
pending translations are not terminated on iova fault. Otherwise
a terminated CP read could hang the GPU by returning invalid
command-stream data.
Signed-off-by: Rob Clark
---
From: Jordan Crouse
Now that we can get the ctx from the submitqueue, the extra arg is
redundant.
Signed-off-by: Jordan Crouse
[split out of previous patch to reduce churny noise]
Signed-off-by: Rob Clark
---
drivers/gpu/drm/msm/adreno/a5xx_gpu.c | 12 +---
From: Rob Clark
In $debugfs/gem we already show any vma(s) associated with an object.
Also show process names if the vma's address space is a per-process
address space.
Signed-off-by: Rob Clark
---
drivers/gpu/drm/msm/msm_drv.c | 2 +-
drivers/gpu/drm/msm/msm_gem.c | 25
From: Rob Clark
Sprinkle a few `const`s where helpers don't need write access.
Signed-off-by: Rob Clark
---
drivers/iommu/arm/arm-smmu/arm-smmu.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu.h
From: Jordan Crouse
Add a special implementation for the SMMU attached to most Adreno GPU
target triggered from the qcom,adreno-smmu compatible string.
The new Adreno SMMU implementation will enable split pagetables
(TTBR1) for the domain attached to the GPU device (SID 0) and
hard code it
From: Jordan Crouse
Construct the io-pgtable config before calling the implementation specific
init_context function and pass it so the implementation specific function
can get a chance to change it before the io-pgtable is created.
Signed-off-by: Jordan Crouse
Signed-off-by: Rob Clark
---
From: Jordan Crouse
Each submitqueue is attached to a context. Add a pointer to the
context to the submitqueue at create time and refcount it so
that it stays around through the life of the queue.
Co-developed-by: Rob Clark
Signed-off-by: Jordan Crouse
Signed-off-by: Rob Clark
---
From: Jordan Crouse
Enable TTBR1 for a context bank if IO_PGTABLE_QUIRK_ARM_TTBR1 is selected
by the io-pgtable configuration.
Signed-off-by: Jordan Crouse
Signed-off-by: Rob Clark
---
drivers/iommu/arm/arm-smmu/arm-smmu.c | 21 -
drivers/iommu/arm/arm-smmu/arm-smmu.h |
From: Rob Clark
This interface will be used for drm/msm to coordinate with the
qcom_adreno_smmu_impl to enable/disable TTBR0 translation.
Once TTBR0 translation is enabled, the GPU's CP (Command Processor)
will directly switch TTBR0 pgtables (and do the necessary TLB inv)
synchronized to the
From: Rob Clark
In a later patch, the drvdata will not directly be 'struct msm_gpu *',
so add a helper to reduce the churn.
Signed-off-by: Rob Clark
---
drivers/gpu/drm/msm/adreno/adreno_device.c | 10 --
drivers/gpu/drm/msm/msm_gpu.c | 6 +++---
From: Jordan Crouse
Every Qcom Adreno GPU has an embedded SMMU for its own use. These
devices depend on unique features such as split pagetables,
different stall/halt requirements and other settings. Identify them
with a compatible string so that they can be identified in the
arm-smmu
From: Rob Clark
This will be populated by adreno-smmu, to provide a way for coordinating
enabling/disabling TTBR0 translation.
Signed-off-by: Rob Clark
---
drivers/gpu/drm/msm/adreno/adreno_device.c | 2 --
drivers/gpu/drm/msm/msm_gpu.c | 2 +-
drivers/gpu/drm/msm/msm_gpu.h
From: Jordan Crouse
Do a bit of prep work to add the upcoming adreno-smmu implementation.
Add an hook to allow the implementation to choose which context banks
to allocate.
Move some of the common structs to arm-smmu.h in anticipation of them
being used by the implementations and update some
From: Rob Clark
Currently it doesn't matter, since we free the ctx immediately. But
when we start refcnt'ing the ctx, we don't want old dangling list
entries to hang around.
Signed-off-by: Rob Clark
---
drivers/gpu/drm/msm/msm_submitqueue.c | 4 +++-
1 file changed, 3 insertions(+), 1
There exists redundant #ifdef CONFIG_DYNAMIC_FTRACE in ftrace.c, remove it.
Signed-off-by: Zejiang Tang
Reviewed-by: Steven Rostedt (VMware)
---
arch/mips/kernel/ftrace.c | 4
1 file changed, 4 deletions(-)
diff --git a/arch/mips/kernel/ftrace.c b/arch/mips/kernel/ftrace.c
index
In the original process of pinning/unpinning pages for VFIO-devices,
to make sure the pages are contiguous, we have to check them one by one.
As a result, dma_map/unmap could spend a long time.
Using the hugetlb pages, we can avoid this problem.
All pages in hugetlb pages are contiguous.And the
On Thu, 13 Aug 2020 18:30:50 -0400 Steven Rostedt wrote:
> From: Steven Rostedt (VMware)
>
> While reviewing some patches for bootconfig, I noticed the following
> code in xbc_node_compose_key_after():
>
> ret = snprintf(buf, size, "%s%s", xbc_node_get_data(node),
>
On 8/14/2020 3:04 AM, Jim Mattson wrote:
On Fri, Aug 7, 2020 at 1:47 AM Chenyi Qiang wrote:
Existence of PKS is enumerated via CPUID.(EAX=7H,ECX=0):ECX[31]. It is
enabled by setting CR4.PKS when long mode is active. PKS is only
implemented when EPT is enabled and requires the support of
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