On 2024-02-02 18:04:56 [+0100], Daniel Wagner wrote:
> Dear RT Folks,
Hi,
> This is the RT stable review cycle of patch 4.19.306-rt132-rc1.
…
> Please scream at me if I messed something up. Please test the patches
> too.
Good.
> Enjoy!
> Daniel
Sebastian
On 02/02/2024 15:01, Masahiro Yamada wrote:
--
2.35.3
As you see, several drivers store UTS_RELEASE in their driver data,
and even print it in debug print.
I do not see why it is useful.
I would tend to agree, and mentioned that earlier.
As you discussed in 3/4, if UTS_RELEASE is unneeded
On 2/2/24 20:53, Mathieu Poirier wrote:
> On Thu, Feb 01, 2024 at 07:33:35PM +0100, Arnaud POULIQUEN wrote:
>>
>>
>> On 2/1/24 17:02, Mathieu Poirier wrote:
>>> On Thu, Feb 01, 2024 at 04:06:37PM +0100, Arnaud POULIQUEN wrote:
hello Mathieu,
On 1/31/24 19:52, Mathieu Poirier wrote
On Sat, Feb 03, 2024 at 07:33:51PM -0500, Steven Rostedt wrote:
> On Mon, 29 Jan 2024 14:27:58 +
> Vincent Donnefort wrote:
>
> > --- /dev/null
> > +++ b/include/uapi/linux/trace_mmap.h
> > @@ -0,0 +1,43 @@
> > +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
> > +#ifndef _TRAC
Hook up the PBS & SDAM to the PMI632 LPG so that we can use the
hw_pattern for the LEDs.
Signed-off-by: Luca Weiss
---
Luca Weiss (3):
dt-bindings: mfd: qcom,spmi-pmic: Add pbs to SPMI device types
arm64: dts: qcom: pmi632: Add PBS client and use in LPG node
arm64: defconfig: En
Add the PBS (Programmable Boot Sequencer) to the list of devices.
Signed-off-by: Luca Weiss
---
Documentation/devicetree/bindings/mfd/qcom,spmi-pmic.yaml | 4
1 file changed, 4 insertions(+)
diff --git a/Documentation/devicetree/bindings/mfd/qcom,spmi-pmic.yaml
b/Documentation/devicetree/
With SDAM + PBS the LPG driver can configure the LED pattern in
hardware.
Signed-off-by: Luca Weiss
---
arch/arm64/boot/dts/qcom/pmi632.dtsi | 9 +
1 file changed, 9 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/pmi632.dtsi
b/arch/arm64/boot/dts/qcom/pmi632.dtsi
index 4eb79e0ce40
Enable the PBS driver used on e.g. PMI632.
Signed-off-by: Luca Weiss
---
arch/arm64/configs/defconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
index cfa3e00def09..e92a5fd9f660 100644
--- a/arch/arm64/configs/defconfig
+++ b/a
Hi guys,
With the ipi_raise event enabled and filtered with:
echo 'reason == "Function call interrupts"' > filter, then the 'cat
trace' output below messages:
...
insmod-3355[010] 1.. 24479.230381: ipi_raise:
target_mask=,0bff (Function call interrupts)
...
The above output is
On Tue, 30 Jan 2024 10:32:45 +
Vincent Donnefort wrote:
> > All errors (new ones prefixed by >>):
> >
> >kernel/trace/trace.c: In function 'tracing_set_tracer':
> >kernel/trace/trace.c:6644:17: error: implicit declaration of function
> > 'tracing_disarm_snapshot_locked'; did you mea
On Mon, Feb 05, 2024 at 05:57:29PM +0800, richard clark wrote:
> Hi guys,
>
> With the ipi_raise event enabled and filtered with:
> echo 'reason == "Function call interrupts"' > filter, then the 'cat
> trace' output below messages:
> ...
> insmod-3355[010] 1.. 24479.230381: ipi_raise:
> ta
On Mon, 5 Feb 2024 17:57:29 +0800
richard clark wrote:
> Hi guys,
>
> With the ipi_raise event enabled and filtered with:
> echo 'reason == "Function call interrupts"' > filter, then the 'cat
> trace' output below messages:
> ...
> insmod-3355[010] 1.. 24479.230381: ipi_raise:
> target_m
On 7 Jan 2024, at 19:22, Paul Heidekrüger wrote:
> On 12.12.2023 10:32, Marco Elver wrote:
>> On Tue, 12 Dec 2023 at 10:19, Paul Heidekrüger
>> wrote:
>>>
>>> On 12.12.2023 00:37, Andrey Konovalov wrote:
On Tue, Dec 12, 2023 at 12:35 AM Paul Heidekrüger
wrote:
>
> Using CON
> diff --git a/include/linux/filelock.h b/include/linux/filelock.h
> index 085ff6ba0653..a814664b1053 100644
> --- a/include/linux/filelock.h
> +++ b/include/linux/filelock.h
> @@ -147,6 +147,29 @@ int fcntl_setlk64(unsigned int, struct file *, unsigned
> int,
> int fcntl_setlease(unsigned int fd
On Mon, 2024-02-05 at 12:36 +0100, Christian Brauner wrote:
> > diff --git a/include/linux/filelock.h b/include/linux/filelock.h
> > index 085ff6ba0653..a814664b1053 100644
> > --- a/include/linux/filelock.h
> > +++ b/include/linux/filelock.h
> > @@ -147,6 +147,29 @@ int fcntl_setlk64(unsigned int,
On Mon, Feb 05, 2024 at 06:55:44AM -0500, Jeff Layton wrote:
> On Mon, 2024-02-05 at 12:36 +0100, Christian Brauner wrote:
> > > diff --git a/include/linux/filelock.h b/include/linux/filelock.h
> > > index 085ff6ba0653..a814664b1053 100644
> > > --- a/include/linux/filelock.h
> > > +++ b/include/li
On Mon, 2024-02-05 at 12:57 +0100, Christian Brauner wrote:
> On Mon, Feb 05, 2024 at 06:55:44AM -0500, Jeff Layton wrote:
> > On Mon, 2024-02-05 at 12:36 +0100, Christian Brauner wrote:
> > > > diff --git a/include/linux/filelock.h b/include/linux/filelock.h
> > > > index 085ff6ba0653..a814664b105
On Mon, Feb 05, 2024 at 07:06:00AM -0500, Jeff Layton wrote:
> On Mon, 2024-02-05 at 12:57 +0100, Christian Brauner wrote:
> > On Mon, Feb 05, 2024 at 06:55:44AM -0500, Jeff Layton wrote:
> > > On Mon, 2024-02-05 at 12:36 +0100, Christian Brauner wrote:
> > > > > diff --git a/include/linux/filelock
Currently there seems to be three page frag implementations
which all try to allocate order 3 page, if that fails, it
then fail back to allocate order 0 page, and each of them
all allow order 3 page allocation to fail under certain
condition by using specific gfp bits.
The gfp bits for order 3 pag
The page frag in vhost_net_page_frag_refill() uses the
'struct page_frag' from skb_page_frag_refill(), but it's
implementation is similar to page_frag_alloc_align() now.
This patch removes vhost_net_page_frag_refill() by using
'struct page_frag_cache' instead of 'struct page_frag',
and allocating
introduce vhost_net_test for both vhost_net tx and rx basing
on virtio_test to test vhost_net changing in the kernel.
Steps for vhost_net tx testing:
1. Prepare a out buf.
2. Kick the vhost_net to do tx processing.
3. Do the receiving in the tun side.
4. verify the data received by tun is correct.
On Mon, 5 Feb 2024 07:53:40 +0100
Sven Schnelle wrote:
> tracer_tracing_is_on() checks whether record_disabled is not zero. This
> checks both the record_disabled counter and the RB_BUFFER_OFF flag.
> Reading the source it looks like this function should only check for
> the RB_BUFFER_OFF flag.
On Mon, 5 Feb 2024 10:28:57 +
Mark Rutland wrote:
> > I try to write below:
> > echo 'target_cpus == 11 && reason == "Function call interrupts"' >
> > events/ipi/ipi_raise/filter
>
> The '=' checks if the target_cpus bitmap *only* contains CPU 11. If the
> cpumask
> contains other CPUs, t
Hi Steven,
Steven Rostedt writes:
> On Mon, 5 Feb 2024 07:53:40 +0100
> Sven Schnelle wrote:
>
>> tracer_tracing_is_on() checks whether record_disabled is not zero. This
>> checks both the record_disabled counter and the RB_BUFFER_OFF flag.
>> Reading the source it looks like this function sho
nced schema matching $id:
http://devicetree.org/schemas/soc/qcom/qcom,pbs.yaml
doc reference errors (make refcheckdocs):
See
https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20240205-pmi632-ppg-v1-1-e236c95a2...@fairphone.com
The base for the series is generally the latest rc1. A
3][ T42] rcu-scale: Test complete
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20240205/202402052141.769871e2-...@intel.com
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
On Mon, 05 Feb 2024 14:16:30 +0100
Sven Schnelle wrote:
>
> Another issue i'm hitting sometimes is this part:
>
> csum1=`md5sum trace`
> sleep $SLEEP_TIME
> csum2=`md5sum trace`
>
> if [ "$csum1" != "$csum2" ]; then
> fail "Tracing file is still changing"
> fi
>
> This is because the comma
[adding Valentin]
On Mon, Feb 05, 2024 at 08:06:09AM -0500, Steven Rostedt wrote:
> On Mon, 5 Feb 2024 10:28:57 +
> Mark Rutland wrote:
>
> > > I try to write below:
> > > echo 'target_cpus == 11 && reason == "Function call interrupts"' >
> > > events/ipi/ipi_raise/filter
> >
> > The '='
Hi Steven,
Steven Rostedt writes:
> On Mon, 05 Feb 2024 14:16:30 +0100
> Sven Schnelle wrote:
>>
>> Another issue i'm hitting sometimes is this part:
>>
>> csum1=`md5sum trace`
>> sleep $SLEEP_TIME
>> csum2=`md5sum trace`
>>
>> if [ "$csum1" != "$csum2" ]; then
>> fail "Tracing file is s
o
the next release.
>
> doc reference errors (make refcheckdocs):
>
> See
> https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20240205-pmi
> 632-ppg-v1-1-e236c95a2...@fairphone.com
>
> The base for the series is generally the latest rc1. A different dependenc
On 05/02/24 14:39, Mark Rutland wrote:
> [adding Valentin]
>
Thanks!
> On Mon, Feb 05, 2024 at 08:06:09AM -0500, Steven Rostedt wrote:
>> On Mon, 5 Feb 2024 10:28:57 +
>> Mark Rutland wrote:
>>
>> > > I try to write below:
>> > > echo 'target_cpus == 11 && reason == "Function call interrupts
Hi Evgenii,
On Fri, Feb 02, 2024 at 02:30:00PM -0800, Evgenii Stepanov wrote:
> On Thu, Jan 25, 2024 at 8:44 AM Alexandru Elisei
> wrote:
> >
> > Before enabling MTE tag storage management, make sure that the CMA areas
> > have been successfully activated. If a CMA area fails activation, the page
The tracing ring-buffers can be stored on disk or sent to network
without any copy via splice. However the later doesn't allow real time
processing of the traces. A solution is to give userspace direct access
to the ring-buffer pages via a mapping. An application can now become a
consumer of the ri
In preparation for the ring-buffer memory mapping where each subbuf will
be accessible to user-space, zero all the page allocations.
Signed-off-by: Vincent Donnefort
Reviewed-by: Masami Hiramatsu (Google)
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index fd4bfe3ecf01..c
In preparation for allowing the user-space to map a ring-buffer, add
a set of mapping functions:
ring_buffer_{map,unmap}()
ring_buffer_map_fault()
And controls on the ring-buffer:
ring_buffer_map_get_reader() /* swap reader and head */
Mapping the ring-buffer also involves:
A unique I
When a ring-buffer is memory mapped by user-space, no trace or
ring-buffer swap is possible. This means the snapshot feature is
mutually exclusive with the memory mapping. Having a refcount on
snapshot users will help to know if a mapping is possible or not.
Instead of relying on the global trace_
Currently, user-space extracts data from the ring-buffer via splice,
which is handy for storage or network sharing. However, due to splice
limitations, it is imposible to do real-time analysis without a copy.
A solution for that problem is to let the user-space map the ring-buffer
directly.
The m
It is now possible to mmap() a ring-buffer to stream its content. Add
some documentation and a code example.
Signed-off-by: Vincent Donnefort
diff --git a/Documentation/trace/index.rst b/Documentation/trace/index.rst
index 5092d6c13af5..0b300901fd75 100644
--- a/Documentation/trace/index.rst
+++
On 2024-02-05 11:34, Vincent Donnefort wrote:
Currently, user-space extracts data from the ring-buffer via splice,
which is handy for storage or network sharing. However, due to splice
limitations, it is imposible to do real-time analysis without a copy.
A solution for that problem is to let the
On 2/4/24 1:20 PM, Ricardo B. Marliere wrote:
> Now that the driver core can properly handle constant struct bus_type,
> move the nvdimm_bus_type variable to be a constant structure as well,
> placing it into read-only memory which can not be modified at runtime.
>
> Cc: Greg Kroah-Hartman
> S
Hello all,
This series uses various devm_ helpers to simplify the device
removal path.
Removing an unused var "ret1" got squashed into the wrong patch in
the v1 series causing a bisectability error. v2 is based on -next
with the first 3 already taken. These are the last 5 patches of the
v1 series
Use the device lifecycle managed TI-SCI get() function. This helps prevent
mistakes like not put()'ing in the wrong order in cleanup functions and
forgetting to put() on error paths.
Signed-off-by: Andrew Davis
---
drivers/remoteproc/ti_k3_dsp_remoteproc.c | 32 +++
1 file ch
Use a device lifecycle managed action to release tps ti_sci_proc handle.
This helps prevent mistakes like releasing out of order in cleanup
functions and forgetting to release on error paths.
Signed-off-by: Andrew Davis
---
drivers/remoteproc/ti_k3_dsp_remoteproc.c | 27 +++
Use device lifecycle managed devm_kzalloc() helper function. This helps
prevent mistakes like freeing out of order in cleanup functions and
forgetting to free on all error paths.
Signed-off-by: Andrew Davis
---
drivers/remoteproc/ti_k3_dsp_remoteproc.c | 8 ++--
1 file changed, 2 insertions(
Use device lifecycle managed devm_rproc_add() helper function. This helps
prevent mistakes like deleting out of order in cleanup functions and
forgetting to delete on all error paths.
Signed-off-by: Andrew Davis
---
drivers/remoteproc/ti_k3_dsp_remoteproc.c | 9 ++---
1 file changed, 2 inser
Use a device lifecycle managed ioremap helper function. This helps prevent
mistakes like unmapping out of order in cleanup functions and forgetting
to unmap on all error paths.
Signed-off-by: Andrew Davis
---
drivers/remoteproc/ti_k3_dsp_remoteproc.c | 48 +--
1 file changed,
On Mon, Feb 05, 2024 at 11:55:08AM -0500, Mathieu Desnoyers wrote:
> On 2024-02-05 11:34, Vincent Donnefort wrote:
> > Currently, user-space extracts data from the ring-buffer via splice,
> > which is handy for storage or network sharing. However, due to splice
> > limitations, it is imposible to d
On 2024-02-05 13:34, Vincent Donnefort wrote:
On Mon, Feb 05, 2024 at 11:55:08AM -0500, Mathieu Desnoyers wrote:
[...]
How are the kernel linear mapping and the userspace mapping made coherent
on architectures with virtually aliasing data caches ?
Ref.
https://lore.kernel.org/lkml/202402022
On Sun, Feb 04, 2024 at 05:52:51PM -0300, Ricardo B. Marliere wrote:
> Now that the driver core can properly handle constant struct bus_type,
> move the virtio_bus variable to be a constant structure as well,
> placing it into read-only memory which can not be modified at runtime.
>
> Cc: Greg Kro
On Sun, Feb 04, 2024 at 05:50:45PM -0300, Ricardo B. Marliere wrote:
> Now that the driver core can properly handle constant struct bus_type,
> move the vdpa_bus variable to be a constant structure as well,
> placing it into read-only memory which can not be modified at runtime.
>
> Cc: Greg Kroah
On Sun, Feb 04, 2024 at 05:32:05PM -0300, Ricardo B. Marliere wrote:
> Now that the driver core can properly handle constant struct bus_type,
> move the rpmsg_bus variable to be a constant structure as well,
> placing it into read-only memory which can not be modified at runtime.
>
> Cc: Greg Kroa
On Sun, Feb 04, 2024 at 05:20:07PM -0300, Ricardo B. Marliere wrote:
> Now that the driver core can properly handle constant struct bus_type,
> move the nvdimm_bus_type variable to be a constant structure as well,
> placing it into read-only memory which can not be modified at runtime.
>
> Cc: Gre
On Sun, Feb 04, 2024 at 01:07:11PM -0300, Ricardo B. Marliere wrote:
> Now that the driver core can properly handle constant struct bus_type,
> move the dax_bus_type variable to be a constant structure as well,
> placing it into read-only memory which can not be modified at runtime.
>
> Cc: Greg K
On Mon, Feb 05, 2024 at 01:44:47PM -0500, Mathieu Desnoyers wrote:
> On 2024-02-05 13:34, Vincent Donnefort wrote:
> > On Mon, Feb 05, 2024 at 11:55:08AM -0500, Mathieu Desnoyers wrote:
> [...]
>
> > >
> > > How are the kernel linear mapping and the userspace mapping made coherent
> > > on archit
On Mon, Feb 05, 2024 at 12:27:48PM -0600, Andrew Davis wrote:
> Hello all,
>
> This series uses various devm_ helpers to simplify the device
> removal path.
>
> Removing an unused var "ret1" got squashed into the wrong patch in
> the v1 series causing a bisectability error. v2 is based on -next
>
On Sun, Feb 04, 2024 at 05:32:05PM -0300, Ricardo B. Marliere wrote:
> Now that the driver core can properly handle constant struct bus_type,
> move the rpmsg_bus variable to be a constant structure as well,
> placing it into read-only memory which can not be modified at runtime.
>
> Cc: Greg Kroa
SGX Enclave Page Cache (EPC) memory allocations are separate from normal
RAM allocations, and are managed solely by the SGX subsystem. The existing
cgroup memory controller cannot be used to limit or account for SGX EPC
memory, which is a desirable feature in some environments, e.g., support
for po
From: Kristen Carlson Accardi
Add SGX EPC memory, MISC_CG_RES_SGX_EPC, to be a valid resource type
for the misc controller.
Signed-off-by: Kristen Carlson Accardi
Co-developed-by: Haitao Huang
Signed-off-by: Haitao Huang
Reviewed-by: Jarkko Sakkinen
---
V6:
- Split the original patch into th
From: Kristen Carlson Accardi
The misc cgroup controller (subsystem) currently does not perform
resource type specific action for Cgroups Subsystem State (CSS) events:
the 'css_alloc' event when a cgroup is created and the 'css_free' event
when a cgroup is destroyed.
Define callbacks for those e
From: Kristen Carlson Accardi
The SGX EPC cgroup will reclaim EPC pages when a usage in a cgroup
reaches its or ancestor's limit. This requires a walk from the current
cgroup up to the root similar to misc_cg_try_charge(). Export
misc_cg_parent() to enable this walk.
The SGX driver may also need
From: Kristen Carlson Accardi
The functions, sgx_{mark,unmark}_page_reclaimable(), manage the tracking
of reclaimable EPC pages: sgx_mark_page_reclaimable() adds a newly
allocated page into the global LRU list while
sgx_unmark_page_reclaimable() does the opposite. Abstract the hard coded
global L
From: Kristen Carlson Accardi
SGX Enclave Page Cache (EPC) memory allocations are separate from normal
RAM allocations, and are managed solely by the SGX subsystem. The
existing cgroup memory controller cannot be used to limit or account for
SGX EPC memory, which is a desirable feature in some en
From: Sean Christopherson
Each EPC cgroup will have an LRU structure to track reclaimable EPC pages.
When a cgroup usage reaches its limit, the cgroup needs to reclaim pages
from its LRU or LRUs of its descendants to make room for any new
allocations.
To prepare for reclamation per cgroup, expos
From: Sean Christopherson
Introduce a data structure to wrap the existing reclaimable list and its
spinlock. Each cgroup later will have one instance of this structure to
track EPC pages allocated for processes associated with the same cgroup.
Just like the global SGX reclaimer (ksgxd), an EPC cg
From: Kristen Carlson Accardi
Implement the reclamation flow for cgroup, encapsulated in the top-level
function sgx_epc_cgroup_reclaim_pages(). It does a pre-order walk on its
subtree, and make calls to sgx_reclaim_pages() at each node passing in
the LRU of that node. It keeps track of total recl
Enclave Page Cache(EPC) memory can be swapped out to regular system
memory, and the consumed memory should be charged to a proper
mem_cgroup. Currently the selection of mem_cgroup to charge is done in
sgx_encl_get_mem_cgroup(). But it only considers two contexts in which
the swapping can be done: n
From: Kristen Carlson Accardi
When the EPC usage of a cgroup is near its limit, the cgroup needs to
reclaim pages used in the same cgroup to make room for new allocations.
This is analogous to the behavior that the global reclaimer is triggered
when the global usage is close to total available EP
From: Kristen Carlson Accardi
To determine if any page available for reclamation at the global level,
only checking for emptiness of the global LRU is not adequate when pages
are tracked in multiple LRUs, one per cgroup. For this purpose, create a
new helper, sgx_can_reclaim(), currently only che
From: Kristen Carlson Accardi
When cgroup is enabled, all reclaimable pages will be tracked in cgroup
LRUs. The global reclaimer needs to start reclamation from the root
cgroup. Expose the top level cgroup reclamation function so the global
reclaimer can reuse it.
Co-developed-by: Sean Christoph
From: Sean Christopherson
Add initial documentation of how to regulate the distribution of
SGX Enclave Page Cache (EPC) memory via the Miscellaneous cgroup
controller.
Signed-off-by: Sean Christopherson
Co-developed-by: Kristen Carlson Accardi
Signed-off-by: Kristen Carlson Accardi
Co-develop
The scripts rely on cgroup-tools package from libcgroup [1].
To run selftests for epc cgroup:
sudo ./run_epc_cg_selftests.sh
To watch misc cgroup 'current' changes during testing, run this in a
separate terminal:
./watch_misc_for_tests.sh current
With different cgroups, the script starts one o
From: Kristen Carlson Accardi
Previous patches have implemented all infrastructure needed for
per-cgroup EPC page tracking and reclaiming. But all reclaimable EPC
pages are still tracked in the global LRU as sgx_lru_list() returns hard
coded reference to the global LRU.
Change sgx_lru_list() to
On 2/4/24 9:07 AM, Ricardo B. Marliere wrote:
> Now that the driver core can properly handle constant struct bus_type,
> move the dax_bus_type variable to be a constant structure as well,
> placing it into read-only memory which can not be modified at runtime.
>
> Cc: Greg Kroah-Hartman
> Sugg
On 2/2/24 11:55 AM, Hari Nagalla wrote:
From: Martyn Welch
We will be adding the M4F driver which shares a lot of commonality
with the DSP driver. Common data structures are introduced here.
Signed-off-by: Martyn Welch
Signed-off-by: Hari Nagalla
---
Changes since v5:
- Created a separate
On 2/2/24 11:55 AM, Hari Nagalla wrote:
From: Martyn Welch
In the next commit we will be adding the M4F driver which shares a lot of
commonality with the DSP driver. Move this shared functionality out so
that it can be used by both drivers.
Signed-off-by: Martyn Welch
Signed-off-by: Hari Naga
From: Ankit Agrawal
NVIDIA's upcoming Grace Hopper Superchip provides a PCI-like device
for the on-chip GPU that is the logical OS representation of the
internal proprietary chip-to-chip cache coherent interconnect.
The device is peculiar compared to a real PCI device in that whilst
there is a r
From: Ankit Agrawal
do_io_rw() is used to read/write to the device MMIO. The grace hopper
VFIO PCI variant driver require this functionality to read/write to
its memory.
Rename this as vfio_pci_core functions and export as GPL.
Signed-off-by: Ankit Agrawal
---
drivers/vfio/pci/vfio_pci_rdwr.c
From: Ankit Agrawal
range_intesect_range determines an overlap between two ranges. If an
overlap, the helper function returns the overlapping offset and size.
The VFIO PCI variant driver emulates the PCI config space BAR offset
registers. These offset may be accessed for read/write with a variet
From: Ankit Agrawal
NVIDIA's upcoming Grace Hopper Superchip provides a PCI-like device
for the on-chip GPU that is the logical OS representation of the
internal proprietary chip-to-chip cache coherent interconnect.
The device is peculiar compared to a real PCI device in that whilst
there is a r
On Mon, Feb 5, 2024 at 5:25 PM John Garry wrote:
>
> On 02/02/2024 15:01, Masahiro Yamada wrote:
> >> --
> >> 2.35.3
> >
> > As you see, several drivers store UTS_RELEASE in their driver data,
> > and even print it in debug print.
> >
> >
> > I do not see why it is useful.
>
> I would tend to agre
Hi Steve,
On Mon, Feb 5, 2024 at 6:38 PM Steven Rostedt wrote:
>
> On Mon, 5 Feb 2024 17:57:29 +0800
> richard clark wrote:
>
> > I try to write below:
> > echo 'target_cpus == 11 && reason == "Function call interrupts"' >
> > events/ipi/ipi_raise/filter
>
> You mean when it is sent only to CPU
On Mon, Feb 5, 2024 at 4:52 AM Ricardo B. Marliere wrote:
>
> Now that the driver core can properly handle constant struct bus_type,
> move the virtio_bus variable to be a constant structure as well,
> placing it into read-only memory which can not be modified at runtime.
>
> Cc: Greg Kroah-Hartma
On Mon, Feb 5, 2024 at 8:46 PM Yunsheng Lin wrote:
>
> introduce vhost_net_test for both vhost_net tx and rx basing
> on virtio_test to test vhost_net changing in the kernel.
>
> Steps for vhost_net tx testing:
> 1. Prepare a out buf.
> 2. Kick the vhost_net to do tx processing.
> 3. Do the receiv
This change adds ftrace support for following functions which
helps in debugging the issues when there is Channel state & MHI
state change and also when we receive data and control events:
1. mhi_intvec_mhi_states
2. mhi_process_data_event_ring
3. mhi_process_ctrl_ev_ring
4. mhi_gen_tre
5. mhi_upda
On Tue, Feb 06, 2024 at 10:02:05AM +0530, Krishna chaitanya chundru wrote:
> This change adds ftrace support for following functions which
> helps in debugging the issues when there is Channel state & MHI
> state change and also when we receive data and control events:
> 1. mhi_intvec_mhi_states
>
Steven Rostedt writes:
> On Mon, 05 Feb 2024 14:16:30 +0100
> Sven Schnelle wrote:
>>
>> Another issue i'm hitting sometimes is this part:
>>
>> csum1=`md5sum trace`
>> sleep $SLEEP_TIME
>> csum2=`md5sum trace`
>>
>> if [ "$csum1" != "$csum2" ]; then
>> fail "Tracing file is still changing"
On 2/6/2024 11:56 AM, Manivannan Sadhasivam wrote:
On Tue, Feb 06, 2024 at 10:02:05AM +0530, Krishna chaitanya chundru wrote:
This change adds ftrace support for following functions which
helps in debugging the issues when there is Channel state & MHI
state change and also when we receive dat
On 2/5/24 07:53, Sven Schnelle wrote:
tracer_tracing_is_on() checks whether record_disabled is not zero. This
checks both the record_disabled counter and the RB_BUFFER_OFF flag.
Reading the source it looks like this function should only check for
the RB_BUFFER_OFF flag. Therefore use ring_buffer_
On 2024/2/6 11:08, Jason Wang wrote:
...
>> +
>> +static void wait_for_interrupt(struct vq_info *vq)
>> +{
>> + unsigned long long val;
>> +
>> + poll(&vq->fds, 1, -1);
>
> It's not good to wait indefinitely.
How about a timeout value of 100ms as below?
poll(&vq->fds, 1, 100);
>
>
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