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1,308,922 commits

Author SHA1 Message Date
Andrii Nakryiko
c634d6f4e1 libbpf: Fix bpf_object__open_skeleton()'s mishandling of options
We do an ugly copying of options in bpf_object__open_skeleton() just to
be able to set object name from skeleton's recorded name (while still
allowing user to override it through opts->object_name).

This is not just ugly, but it also is broken due to memcpy() that
doesn't take into account potential skel_opts' and user-provided opts'
sizes differences due to backward and forward compatibility. This leads
to copying over extra bytes and then failing to validate options
properly. It could, technically, lead also to SIGSEGV, if we are unlucky.

So just get rid of that memory copy completely and instead pass
default object name into bpf_object_open() directly, simplifying all
this significantly. The rule now is that obj_name should be non-NULL for
bpf_object_open() when called with in-memory buffer, so validate that
explicitly as well.

We adopt bpf_object__open_mem() to this as well and generate default
name (based on buffer memory address and size) outside of bpf_object_open().

Fixes: d66562fba1 ("libbpf: Add BPF object skeleton support")
Reported-by: Daniel Müller <deso@posteo.net>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Daniel Müller <deso@posteo.net>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/bpf/20240827203721.1145494-1-andrii@kernel.org
2024-08-29 17:47:27 +02:00
Jinjie Ruan
4d57a84056 soc/tegra: pmc: Simplify with scoped for each OF child loop
Use scoped for_each_child_of_node_scoped() when iterating over device
nodes to make code a bit simpler.

Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-08-29 17:43:43 +02:00
Jon Hunter
12803ded10 arm64: defconfig: Enable Tegra194 PCIe Endpoint
Build the Tegra194 PCIe Endpoint driver as a module by default for
ARM64.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-08-29 17:41:58 +02:00
Jose Marinho
703c730794 ACPICA: Implement the Dword_PCC Resource Descriptor Macro
ACPICA commit 1209ecf682e03d9ef0c22f4986a2e53b03bd2985

The Dword_pcc (alongside word_pcc and Qword_pcc) were accepted to ACPI
inclusion via a code-first process.

This patch implements support in iASL for Dword_pcc.

Link: https://bugzilla.tianocore.org/show_bug.cgi?id=4594
Link: 1209ecf6
Signed-off-by: Jose Marinho <jose.marinho@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2024-08-29 17:41:49 +02:00
Dara Stotland
93ff968622 arm64: tegra: Add thermal nodes to AGX Orin SKU8
One of the key differences between p3701-0000 and p3701-0008 is the
temperature range. Add this info for p3701-0008.

Signed-off-by: Dara Stotland <dstotland@nvidia.com>
Reviewed-by: Brad Griffis <bgriffis@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-08-29 17:40:35 +02:00
Dara Stotland
1f190117a1 arm64: tegra: Move BPMP nodes to AGX Orin module
All SKUs of the p3701 module contain a temp sensor connected to the
BPMP I2C. Move the associated nodes from tegra234-p3701-0008.dtsi
to tegra234-p3701.dtsi. Add missing compatible.

Signed-off-by: Dara Stotland <dstotland@nvidia.com>
Reviewed-by: Brad Griffis <bgriffis@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-08-29 17:40:35 +02:00
Dara Stotland
7662fe9639 arm64: tegra: Move padctl supply nodes to AGX Orin module
Some padctl supply nodes currently reside in board file, when they
should reside on module level. The nodes are part of module,
not board. Move these nodes to the correct AGX Orin
module file.

Signed-off-by: Dara Stotland <dstotland@nvidia.com>
Reviewed-by: Brad Griffis <bgriffis@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-08-29 17:40:35 +02:00
Dara Stotland
d075995c11 arm64: tegra: Move AGX Orin nodes to correct location
Some of the nodes inside the AGX Orin module file are in the
wrong location. In particular, the SD card interface and
two of the PCIe regulators in the module file should instead
reside in the board file. These components are not part of the
module. They are part of the carrier board. Move these
nodes to the correct location.

Fixes: cd42b26a52 ("arm64: tegra: Add regulators required for PCIe")
Fixes: d71b893a11 ("arm64: tegra: Add Tegra234 SDMMC1 device tree node")
Signed-off-by: Dara Stotland <dstotland@nvidia.com>
Reviewed-by: Brad Griffis <bgriffis@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-08-29 17:40:35 +02:00
Dara Stotland
a034db9e4d arm64: tegra: Combine IGX Orin board files
Current IGX Orin structure has both a top-level module+board
file as well as a board file. Most of the data in the board-file
is closely related to the module itself. The benefit of this
extra file is outweighed by the additional complexity. Merge
the board file into the module+board file for simplicity.

Signed-off-by: Dara Stotland <dstotland@nvidia.com>
Reviewed-by: Brad Griffis <bgriffis@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-08-29 17:40:35 +02:00
Dara Stotland
7a3f6cb1de arm64: tegra: Combine AGX Orin board files
The current AGX Orin structure has both a top-level module+board
file as well as a board file. Most of the data in the board-file
is closely related to the module itself. The benefit of this
extra file is outweighed by the additional complexity. Merge
the board file into the module+board file for simplicity.

Signed-off-by: Dara Stotland <dstotland@nvidia.com>
Reviewed-by: Brad Griffis <bgriffis@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-08-29 17:40:34 +02:00
Dara Stotland
ab9cd79d41 arm64: tegra: Add common nodes to AGX Orin module
The AGX Orin module boards contain common nodes that can
be moved to the included module dtsi. This eliminates
redundancy within the files and reduces lines of code.
Data from tegra234-p3701-0000 and tegra234-p3701-0008 that
is common is now in tegra234-p3701.dtsi.

Signed-off-by: Dara Stotland <dstotland@nvidia.com>
Reviewed-by: Brad Griffis <bgriffis@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-08-29 17:40:13 +02:00
Tomasz Maciej Nowak
8f4c834d89 ARM: tegra: Wire up two front panel LEDs on TrimSlice
Pins responsible for controlling these LEDs need to have tristate
control removed if we want them as GPIOs. This change aligns with
pinmux configuration of "dte" pin group in downstream kernel[1].
These LEDs had no function assigned on vendor kernel and there is no
label on the case, the only markings are on PCB which are part of node
names (ds1 marking is on power LED controlled by PMIC), so generic term
is assigned as the function.

1. https://github.com/compulab/trimslice-android-kernel/blob/upstream/arch/arm/mach-tegra/board-trimslice-pinmux.c#L45

Signed-off-by: Tomasz Maciej Nowak <tmn505@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-08-29 17:36:39 +02:00
Sia Jee Heng
4aca2bef90 ACPICA: Headers: Add RISC-V SBI Subtype to DBG2
ACPICA commit 6f4c900bcf9ca065129353f17a83773aa58095aa

Include the RISC-V SBI debugging subtype as documented in DBG2
dated April 10, 2023 [1].

Link: https://learn.microsoft.com/en-us/windows-hardware/drivers/bringup/acpi-debug-port-table # [1]
Link: 6f4c900b
Signed-off-by: Sia Jee Heng <jeeheng.sia@starfivetech.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2024-08-29 17:36:31 +02:00
Tomasz Maciej Nowak
a50d5dcd28 arm64: tegra: Wire up WiFi on Jetson TX1 module
P2180 modules have WiFi in form of BCM4354 chip, and kernel driver
supports this one, so enable it for all users. The necessary calibration
file can be obtained from Jetson Linux Archive. nvram.txt file is
located in "Driver Package (BSP)" in
nv_tegra/l4t_deb_packages/nvidia-l4t-firmware_<version>_arm64.deb
archive. The rest of necessary blobs can be obtained from official
Linux Firmware repository or (newer ones) from Infineon
ifx-linux-firmware repository (look in older releases).

Signed-off-by: Tomasz Maciej Nowak <tmn505@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-08-29 17:35:11 +02:00
Tomasz Maciej Nowak
6eba6471bb arm64: tegra: Wire up Bluetooth on Jetson TX1 module
P2180 modules have Bluetooth in form of BCM4354 chip, and kernel driver
supports this one, so enable it for all users. The necessary firmware
can be obtained from Jetson Linux Archive. bcm4354.hcd file is located
in "Driver Package (BSP)" in
nv_tegra/l4t_deb_packages/nvidia-l4t-firmware_<version>_arm64.deb
archive.

Signed-off-by: Tomasz Maciej Nowak <tmn505@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-08-29 17:34:57 +02:00
James Clark
57880a7966 perf: cs-etm: Allocate queues for all CPUs
Make cs_etm__setup_queue() setup a queue even if it's empty, and
pre-allocate queues based on the max CPU that was recorded. In per-CPU
mode aux queues are indexed based on CPU ID even if all CPUs aren't
recorded, sparse queue arrays aren't used.

This will allow HW_IDs to be saved even if no aux data was received in
that queue without having to call cs_etm__setup_queue() from two
different places.

Reviewed-by: Mike Leach <mike.leach@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Ganapatrao Kulkarni <gankulkarni@os.amperecomputing.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linux.dev>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20240722101202.26915-3-james.clark@linaro.org
Signed-off-by: James Clark <james.clark@linaro.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2024-08-29 12:34:55 -03:00
Tomasz Maciej Nowak
3ed4e09860 arm64: tegra: Wire up power sensors on Jetson TX1 DevKit
One INA3221 sensor is located on P2180 module and the other two are on
P2597 base board.

Signed-off-by: Tomasz Maciej Nowak <tmn505@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-08-29 17:34:48 +02:00
Sia Jee Heng
7741e3c5f8 ACPICA: SPCR: Update the SPCR table to version 4
ACPICA commit 1eeff52124a45d5cd887ba5687bbad0116e4d211

The Microsoft Serial Port Console Redirection (SPCR) specification
revision 1.09 comprises additional fields [1]. The newly added fields
are:
- RISC-V SBI
- Precise Baud Rate
- namespace_string_length
- namespace_string_offset
- namespace_string

Additionaly, this code will support up to SPCR revision 1.10, as it
includes only minor wording changes.

Link: https://learn.microsoft.com/en-us/windows-hardware/drivers/serports/serial-port-console-redirection-table # [1]
Link: 1eeff521
Signed-off-by: Sia Jee Heng <jeeheng.sia@starfivetech.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2024-08-29 17:34:36 +02:00
James Clark
b6aa0de9a5 perf cs-etm: Create decoders after both AUX and HW_ID search passes
Both of these passes gather information about how to create the
decoders. AUX records determine formatted/unformatted, and the HW_IDs
determine the traceID/metadata mappings.

Therefore it makes sense to cache the information and wait until both
passes are over until creating the decoders, rather than creating them
at the first HW_ID found.

This will allow a simplification of the creation process where
cs_etm_queue->traceid_list will exclusively used to create the decoders,
rather than the current two methods depending on whether the trace is
formatted or not.

Previously the sample CPU from the AUX record was used to initialize
the decoder CPU, but actually sample CPU == AUX queue index in per-CPU
mode, so saving the sample CPU isn't required.

Similarly formatted/unformatted was used upfront to create the decoders,
but now it's cached until later.

Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Signed-off-by: James Clark <james.clark@linaro.org>
Tested-by: Ganapatrao Kulkarni <gankulkarni@os.amperecomputing.com>
Tested-by: Leo Yan <leo.yan@arm.com>
Acked-by: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linux.dev>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20240722101202.26915-2-james.clark@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2024-08-29 12:33:02 -03:00
Vedant Deshpande
6e1a196425 arm64: tegra: Add p3767 PCIe C4 EP details
Add implementation details for Orin NX/Nano PCIe EP on C4.

Signed-off-by: Vedant Deshpande <vedantd@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-08-29 17:32:16 +02:00
Vedant Deshpande
0580286d0d arm64: tegra: Add Tegra234 PCIe C4 EP definition
Add PCIe C4 EP controller definition in device tree for Tegra234
devices.

Signed-off-by: Vedant Deshpande <vedantd@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-08-29 17:32:01 +02:00
Zhang Rui
ff418f34ba ACPICA: Complete CXL 3.0 CXIMS structures
ACPICA commit eb2a2ff303416fb3f6c425d519dbcd6988dbd91f

Commit 2d8dc0383d3c9 ("Add CXL 3.0 structures (CXIMS & RDPAS) to the
CEDT table") introduces basic support for CXL XOR Interleave Math
Structure (CXIMS).

Complete the CXIMS structures.

No functional change.

Link: eb2a2ff3
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2024-08-29 17:31:25 +02:00
Diogo Ivo
ebe899563a arm64: tegra: Add wp-gpio for P2597's external card slot
Add the definition for the wp-gpio of the P2597's external card slot,
enabling this functionality.

Tested on a P2597 board.

Signed-off-by: Diogo Ivo <diogo.ivo@tecnico.ulisboa.pt>
Tested-by: Tomasz Maciej Nowak <tmn505@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-08-29 17:29:13 +02:00
Diogo Ivo
46a26db827 arm64: tegra: Fix gpio for P2597 vmmc regulator
The current declaration is off-by-one and actually corresponds to the
wp-gpio of the external slot.

Tested on a P2597 board.

Signed-off-by: Diogo Ivo <diogo.ivo@tecnico.ulisboa.pt>
Tested-by: Tomasz Maciej Nowak <tmn505@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-08-29 17:29:13 +02:00
Adrien Destugues
7afea7bc49 ACPICA: haiku: Fix invalid value used for semaphores
ACPICA commit 49fe4f25483feec2f685b204ef19e28d92979e95

In Haiku, semaphores are represented by integers, not pointers.
So, we can't use NULL as the invalid/destroyed value, the correct value
is -1. Introduce a platform overridable define to allow this.

Fixes #162 (which was closed after coming to the conclusion that this
should be done, but the change was never done).

Link: 49fe4f25
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2024-08-29 17:26:51 +02:00
David Heidelberg
c20ebc7fbd dt-bindings: arm: tegra: Document Nyan, all revisions in kernel tree
Avoid firing useless warnings when running make dtbs_check

Signed-off-by: David Heidelberg <david@ixit.cz>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-08-29 17:24:49 +02:00
Svyatoslav Ryhel
c6d17e1a42 ARM: tegra: tf701t: Configure USB
Fixes issue when resuming after suspend made USB in peripheral
mode inaccessible.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-08-29 17:16:28 +02:00
Svyatoslav Ryhel
8c80f44126 ARM: tegra: tf701t: Use dedicated backlight regulator
Downstream kernel states that backlight has no actual enable GPIO
and uses fixed regulator.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-08-29 17:16:28 +02:00
Svyatoslav Ryhel
003b99aa30 ARM: tegra: tf701t: Re-group GPIO keys
Group GPIO keys into keys and switches.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-08-29 17:16:28 +02:00
Svyatoslav Ryhel
1731cbba9f ARM: tegra: tf701t: Bind WIFI SDIO and EMMC
Add MMC nodes configuration along with WIFI binding to ASUS TF701T
device-tree.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-08-29 17:16:28 +02:00
Svyatoslav Ryhel
e4cee35431 ARM: tegra: tf701t: Complete sound bindings
With these changes sound works, only UCM configs are needed for
complete support.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-08-29 17:16:28 +02:00
Svyatoslav Ryhel
c79e35e606 ARM: tegra: tf701t: Adjust sensors nodes
Complete and adjust magnetometer, thermal sensor, motion tracker,
power and light sensors according to available sources.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-08-29 17:16:28 +02:00
Svyatoslav Ryhel
6ca426a095 ARM: tegra: tf701t: Add Bluetooth node
Add serial node along with bluetooth node to ASUS TF701T device-tree.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-08-29 17:16:28 +02:00
Svyatoslav Ryhel
fceb6acd5d ARM: tegra: tf701t: Add HDMI bindings
Add HDMI nodes to ASUS TF701T device-tree.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-08-29 17:16:28 +02:00
Svyatoslav Ryhel
1f02c9fb3a ARM: tegra: tf701t: Correct and complete PMIC and PMC bindings
Add missing parts of PMIC complex, extend PMC binding and add missing
fixed regulators. Additionally, refresh naming to better reflect
regulator purpose.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-08-29 17:16:28 +02:00
Svyatoslav Ryhel
984d444a10 ARM: tegra: tf701t: Bind VDE device
Add Video Decoder Engine node to ASUS TF701T device-tree.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-08-29 17:16:28 +02:00
Svyatoslav Ryhel
b457e191a7 ARM: tegra: tf701t: Use unimomentary pinmux setup
Mimic original downstream board behavior to set up all pinmux at once.
Per-device pinmux is good but we have no complete board schematics
to allow such luxury.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-08-29 17:16:23 +02:00
Hongbo Li
ce4a60592e lsm: Use IS_ERR_OR_NULL() helper function
Use the IS_ERR_OR_NULL() helper instead of open-coding a
NULL and an error pointer checks to simplify the code and
improve readability.

Signed-off-by: Hongbo Li <lihongbo22@huawei.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
2024-08-29 11:12:13 -04:00
Matteo Martelli
3e83957e8d
ASoC: sunxi: sun4i-i2s: fix LRCLK polarity in i2s mode
This fixes the LRCLK polarity for sun8i-h3 and sun50i-h6 in i2s mode
which was wrongly inverted.

The LRCLK was being set in reversed logic compared to the DAI format:
inverted LRCLK for SND_SOC_DAIFMT_IB_NF and SND_SOC_DAIFMT_NB_NF; normal
LRCLK for SND_SOC_DAIFMT_IB_IF and SND_SOC_DAIFMT_NB_IF. Such reversed
logic applies properly for DSP_A, DSP_B, LEFT_J and RIGHT_J modes but
not for I2S mode, for which the LRCLK signal results reversed to what
expected on the bus. The issue is due to a misinterpretation of the
LRCLK polarity bit of the H3 and H6 i2s controllers. Such bit in this
case does not mean "0 => normal" or "1 => inverted" according to the
expected bus operation, but it means "0 => frame starts on low edge" and
"1 => frame starts on high edge" (from the User Manuals).

This commit fixes the LRCLK polarity by setting the LRCLK polarity bit
according to the selected bus mode and renames the LRCLK polarity bit
definition to avoid further confusion.

Fixes: dd657eae81 ("ASoC: sun4i-i2s: Fix the LRCK polarity")
Fixes: 73adf87b7a ("ASoC: sun4i-i2s: Add support for H6 I2S")
Signed-off-by: Matteo Martelli <matteomartelli3@gmail.com>
Link: https://patch.msgid.link/20240801-asoc-fix-sun4i-i2s-v2-1-a8e4e9daa363@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-08-29 15:57:07 +01:00
Jani Nikula
a74549dd55 drm/i915: deprecate the i915.modeset module parameter
The i915.modeset parameter doesn't really provide any useful benefit
over the nomodeset kernel parameter. Anything that i915.modeset does can
be achieved via nomodeset or not probing i915 at all.

Unfortunately, the i915.modeset parameter is widely referenced on
various forums, and removing it is not that simple. Start off by
deprecating it in the module parameter documentation, and logging a
warning message on non-default values.

Cc: Daniel Veter <daniel.vetter@ffwll.ch>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/2c63e2048eed64f728478fbcfc84f51c7f3212e6.1724843853.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2024-08-29 17:53:02 +03:00
Jani Nikula
b2fcb48214 drm/i915: fail module probe on nomodeset and i915.modeset=0
Since commit b30324adaf ("drm/i915: Deprecated UMS support") we've
silently failed the probe, without propagating errors, on nomodeset and
i915.modeset=0. This has been to not upset userspace. See the above
commit for details.

Since then, we've removed both the UMS and KMS kconfig options in commit
03dae59c72 ("drm/i915: Ditch UMS config option") and commit
fd930478fb ("drm/i915: Remove KMS Kconfig option") respectively.

Another ten years or so have passed. Continue with the deprecation by
actually failing the probe with nomodeset and i915.modeset=0.

Cc: Daniel Veter <daniel.vetter@ffwll.ch>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/1f34651ae8ae96dd5ecd9969b5bc43d23feda08c.1724843853.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2024-08-29 17:53:02 +03:00
Arnaldo Carvalho de Melo
0fd77ae4a3 Revert "tools build: Remove leftover libcap tests that prevents fast path feature detection from working"
Ian pointed out that the libcap feature test is also used by bpftool, so
we can't remove it just because perf stopped using it, revert the
removal of the feature test.

Since both perf and libcap uses the fast path feature detection
(tools/build/feature/test-all.c), probably the best thing is to keep
libcap-devel when building perf even it not being used there.

This reverts commit 47b3b6435e.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2024-08-29 11:51:43 -03:00
Fei Shao
be03b30b7a drm/mediatek: Use spin_lock_irqsave() for CRTC event lock
Use the state-aware spin_lock_irqsave() and spin_unlock_irqrestore()
to avoid unconditionally re-enabling the local interrupts.

Fixes: 411f5c1eac ("drm/mediatek: handle events when enabling/disabling crtc")
Signed-off-by: Fei Shao <fshao@chromium.org>
Link: https://patchwork.kernel.org/project/dri-devel/patch/20240828101511.3269822-1-fshao@chromium.org/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
2024-08-29 14:49:35 +00:00
Jens Axboe
ae98dbf43d io_uring/kbuf: add support for incremental buffer consumption
By default, any recv/read operation that uses provided buffers will
consume at least 1 buffer fully (and maybe more, in case of bundles).
This adds support for incremental consumption, meaning that an
application may add large buffers, and each read/recv will just consume
the part of the buffer that it needs.

For example, let's say an application registers 1MB buffers in a
provided buffer ring, for streaming receives. If it gets a short recv,
then the full 1MB buffer will be consumed and passed back to the
application. With incremental consumption, only the part that was
actually used is consumed, and the buffer remains the current one.

This means that both the application and the kernel needs to keep track
of what the current receive point is. Each recv will still pass back a
buffer ID and the size consumed, the only difference is that before the
next receive would always be the next buffer in the ring. Now the same
buffer ID may return multiple receives, each at an offset into that
buffer from where the previous receive left off. Example:

Application registers a provided buffer ring, and adds two 32K buffers
to the ring.

Buffer1 address: 0x1000000 (buffer ID 0)
Buffer2 address: 0x2000000 (buffer ID 1)

A recv completion is received with the following values:

cqe->res	0x1000	(4k bytes received)
cqe->flags	0x11	(CQE_F_BUFFER|CQE_F_BUF_MORE set, buffer ID 0)

and the application now knows that 4096b of data is available at
0x1000000, the start of that buffer, and that more data from this buffer
will be coming. Now the next receive comes in:

cqe->res	0x2010	(8k bytes received)
cqe->flags	0x11	(CQE_F_BUFFER|CQE_F_BUF_MORE set, buffer ID 0)

which tells the application that 8k is available where the last
completion left off, at 0x1001000. Next completion is:

cqe->res	0x5000	(20k bytes received)
cqe->flags	0x1	(CQE_F_BUFFER set, buffer ID 0)

and the application now knows that 20k of data is available at
0x1003000, which is where the previous receive ended. CQE_F_BUF_MORE
isn't set, as no more data is available in this buffer ID. The next
completion is then:

cqe->res	0x1000	(4k bytes received)
cqe->flags	0x10001	(CQE_F_BUFFER|CQE_F_BUF_MORE set, buffer ID 1)

which tells the application that buffer ID 1 is now the current one,
hence there's 4k of valid data at 0x2000000. 0x2001000 will be the next
receive point for this buffer ID.

When a buffer will be reused by future CQE completions,
IORING_CQE_BUF_MORE will be set in cqe->flags. This tells the application
that the kernel isn't done with the buffer yet, and that it should expect
more completions for this buffer ID. Will only be set by provided buffer
rings setup with IOU_PBUF_RING INC, as that's the only type of buffer
that will see multiple consecutive completions for the same buffer ID.
For any other provided buffer type, any completion that passes back
a buffer to the application is final.

Once a buffer has been fully consumed, the buffer ring head is
incremented and the next receive will indicate the next buffer ID in the
CQE cflags.

On the send side, the application can manage how much data is sent from
an existing buffer by setting sqe->len to the desired send length.

An application can request incremental consumption by setting
IOU_PBUF_RING_INC in the provided buffer ring registration. Outside of
that, any provided buffer ring setup and buffer additions is done like
before, no changes there. The only change is in how an application may
see multiple completions for the same buffer ID, hence needing to know
where the next receive will happen.

Note that like existing provided buffer rings, this should not be used
with IOSQE_ASYNC, as both really require the ring to remain locked over
the duration of the buffer selection and the operation completion. It
will consume a buffer otherwise regardless of the size of the IO done.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-08-29 08:44:58 -06:00
Jens Axboe
6733e678ba io_uring/kbuf: pass in 'len' argument for buffer commit
In preparation for needing the consumed length, pass in the length being
completed. Unused right now, but will be used when it is possible to
partially consume a buffer.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-08-29 08:44:51 -06:00
Jens Axboe
641a681679 Revert "io_uring: Require zeroed sqe->len on provided-buffers send"
This reverts commit 79996b45f7.

Revert the change that restricts a send provided buffer to be zero, so
it will always consume the whole buffer. This is strictly needed for
partial consumption, as the send may very well be a subset of the
current buffer. In fact, that's the intended use case.

For non-incremental provided buffer rings, an application should set
sqe->len carefully to avoid the potential issue described in the
reverted commit. It is recommended that '0' still be set for len for
that case, if the application is set on maintaining more than 1 send
inflight for the same socket. This is somewhat of a nonsensical thing
to do.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-08-29 08:44:46 -06:00
Jens Axboe
2c8fa70bf3 io_uring/kbuf: move io_ring_head_to_buf() to kbuf.h
In preparation for using this helper in kbuf.h as well, move it there and
turn it into a macro.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-08-29 08:44:42 -06:00
Jens Axboe
ecd5c9b296 io_uring/kbuf: add io_kbuf_commit() helper
Committing the selected ring buffer is currently done in three different
spots, combine it into a helper and just call that.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-08-29 08:44:38 -06:00
Hongbo Li
4609c6eab6 irqdomain: Use IS_ERR_OR_NULL() in irq_domain_trim_hierarchy()
Use IS_ERR_OR_NULL() instead of open-coding a NULL and a error pointer
check.

Signed-off-by: Hongbo Li <lihongbo22@huawei.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20240828122724.3697447-1-lihongbo22@huawei.com
2024-08-29 16:42:07 +02:00
Jinjie Ruan
bf1e0fb69a genirq/msi: Use kmemdup_array() instead of kmemdup()
Let kmemdup_array() take care about sizing instead of doing it open coded.

Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20240828072219.1249250-1-ruanjinjie@huawei.com
2024-08-29 16:42:07 +02:00