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1,426,898 commits

Author SHA1 Message Date
Josephine Pfeiffer
a74f038fa5 riscv: ptdump: use seq_puts() in pt_dump_seq_puts() macro
The pt_dump_seq_puts() macro incorrectly uses seq_printf() instead of
seq_puts(). This is both a performance issue and conceptually wrong,
as the macro name suggests plain string output (puts) but the
implementation uses formatted output (printf).

The macro is used in ptdump.c:301 to output a newline character. Using
seq_printf() adds unnecessary overhead for format string parsing when
outputting this constant string.

This bug was introduced in commit 59c4da8640 ("riscv: Add support to
dump the kernel page tables") in 2020, which copied the implementation
pattern from other architectures that had the same bug.

Fixes: 59c4da8640 ("riscv: Add support to dump the kernel page tables")
Signed-off-by: Josephine Pfeiffer <hi@josie.lol>
Link: https://lore.kernel.org/r/20251018170451.3355496-1-hi@josie.lol
Signed-off-by: Paul Walmsley <pjw@kernel.org>
2025-10-27 11:40:43 -06:00
Chunyan Zhang
060ea84a48 riscv: stacktrace: Disable KASAN checks for non-current tasks
Unwinding the stack of a task other than current, KASAN would report
"BUG: KASAN: out-of-bounds in walk_stackframe+0x41c/0x460"

There is a same issue on x86 and has been resolved by the commit
84936118bd ("x86/unwind: Disable KASAN checks for non-current tasks")
The solution could be applied to RISC-V too.

This patch also can solve the issue:
https://seclists.org/oss-sec/2025/q4/23

Fixes: 5d8544e2d0 ("RISC-V: Generic library routines and assembly")
Co-developed-by: Jiakai Xu <xujiakai2025@iscas.ac.cn>
Signed-off-by: Jiakai Xu <xujiakai2025@iscas.ac.cn>
Signed-off-by: Chunyan Zhang <zhangchunyan@iscas.ac.cn>
Link: https://lore.kernel.org/r/20251022072608.743484-1-zhangchunyan@iscas.ac.cn
[pjw@kernel.org: clean up checkpatch issues]
Signed-off-by: Paul Walmsley <pjw@kernel.org>
2025-10-27 11:40:43 -06:00
David Heidelberg
ab9a2c821a arm64: dts: qcom: sdm845: Define guard pages within the rmtfs region
Use qcom,use-guard-pages property instead of polluting device-tree with
lower and upper rmtfs guard nodes.

No functional change intended.

cosmetic: set name the node rmtfs-region.

Signed-off-by: David Heidelberg <david@ixit.cz>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Tested-By: Paul Sajna <sajattack@postmarketos.org>
Link: https://lore.kernel.org/r/20251020-sdm845-use-guard-pages-v1-1-64d714f8bd73@ixit.cz
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-10-27 12:31:20 -05:00
Guido Günther
720ebcc3e6 arm64: dts: qcom: sdm845-shift-axolotl: Drop address and size cells from panel
They're set in the parent to describe the panel's reg property already.

Fixes the

linux/arch/arm64/boot/dts/qcom/sdm845-shift-axolotl.dtb: panel@0 (visionox,rm69299-shift): '#address-cells', '#size-cells' do not match any of the regexes: '^pinctrl-[0-9]+$'

warning.

Signed-off-by: Guido Günther <agx@sigxcpu.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251020-shift6mq-dt-v2-1-d8fc3ec71281@sigxcpu.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-10-27 12:30:51 -05:00
Konrad Dybcio
222c975e06 arm64: dts: qcom: sdx75: Fix the USB interrupt entry order
The DP and DM interrupts are expected to come in a different order.
Reorder them to align with bindings.

Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Abel Vesa <abel.vesa@linaro.org>
Link: https://lore.kernel.org/r/20251020-topic-sdx75_usb-v1-1-1a96d5de19c9@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-10-27 12:30:45 -05:00
Konrad Dybcio
4b6e99e488 arm64: dts: qcom: lemans: Align ethernet interconnect-names with schema
Reshuffle the entries to match the expected order.

Fixes the following warnings:

(qcom,sa8775p-ethqos): interconnect-names:0: 'cpu-mac' was expected
(qcom,sa8775p-ethqos): interconnect-names:1: 'mac-mem' was expected

Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251020-topic-lemans_eth_dt-v1-1-25f4532addb2@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-10-27 12:30:37 -05:00
Gaurav Kohli
8053174aac arm64: dts: qcom: lemans-evk: Enable AMC6821 fan controller
Enable AMC6821 fan controller for lemans-evk platform and
configure pwm polarity as inverted.

Signed-off-by: Gaurav Kohli <gaurav.kohli@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251017050256.987660-1-gaurav.kohli@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-10-27 12:29:29 -05:00
Tingguo Cheng
84ff999ae4 arm64: dts: qcom: lemans-pmics: enable rtc
Add RTC node, the RTC is controlled by PMIC device via spmi bus.

Signed-off-by: Tingguo Cheng <tingguo.cheng@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251017-add-rtc-for-lemans-v2-1-0aaf174b25b9@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-10-27 12:27:01 -05:00
Eric Gonçalves
42e56b53a1 arm64: dts: qcom: sm8250-samsung-common: correct reserved pins
The S20 series has additional reserved pins for the fingerprint sensor,
GPIO 20-23. Correct it by adding them into gpio-reserved-ranges.

Fixes: 6657fe9e9f ("arm64: dts: qcom: add initial support for Samsung Galaxy S20 FE")
Signed-off-by: Eric Gonçalves <ghatto404@gmail.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251016202129.226449-1-ghatto404@gmail.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-10-27 12:27:01 -05:00
Konrad Dybcio
6030fa0636 arm64: dts: qcom: sdm845-starqltechn: Fix i2c-gpio node name
Fix the following DT checker warning:

$nodename:0: 'i2c21' does not match '^i2c(@.+|-[a-z0-9]+)?$'

Fixes: 3a4600448b ("arm64: dts: qcom: sdm845-starqltechn: add display PMIC")
Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251015-topic-starltechn_i2c_gpio-v1-1-6d303184ee87@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-10-27 12:27:00 -05:00
Rakesh Kota
bc303efddf arm64: dts: qcom: lemans-evk: Add resin key code for PMM8654AU
Update the PMM8654AU resin input code to KEY_VOLUMEDOWN
and enable it.

Signed-off-by: Rakesh Kota <rakesh.kota@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251015-add_pon_resin-v2-1-44e2e45de5f1@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-10-27 12:21:49 -05:00
Barnabás Czémán
2144f6d57d arm64: dts: qcom: Add Xiaomi Redmi 3S
Add initial support for Xiaomi Redmi 3S (land).

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Barnabás Czémán <barnabas.czeman@mainlining.org>
Link: https://lore.kernel.org/r/20251014-msm8937-v10-3-b3e8da82e968@mainlining.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-10-27 12:19:35 -05:00
Barnabás Czémán
1a61426728 dt-bindings: arm: qcom: Add Xiaomi Redmi 3S
Document Xiaomi Redmi 3S (land).
Add qcom,msm8937 for msm-id, board-id allow-list.

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Barnabás Czémán <barnabas.czeman@mainlining.org>
Link: https://lore.kernel.org/r/20251014-msm8937-v10-2-b3e8da82e968@mainlining.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-10-27 12:18:42 -05:00
Dang Huynh
a829f6f2e8 arm64: dts: qcom: Add initial support for MSM8937
Add initial support for MSM8937 SoC.

Signed-off-by: Dang Huynh <danct12@riseup.net>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Co-developed-by: Barnabás Czémán <barnabas.czeman@mainlining.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Barnabás Czémán <barnabas.czeman@mainlining.org>
Link: https://lore.kernel.org/r/20251014-msm8937-v10-1-b3e8da82e968@mainlining.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-10-27 12:18:42 -05:00
Abel Vesa
9b21c3bd24 soc: qcom: ubwc: Add configuration Glymur platform
Describe the Universal Bandwidth Compression (UBWC) configuration
for the new Glymur platform.

Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251014-glymur-display-v2-7-ff935e2f88c5@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-10-27 12:17:45 -05:00
Yuya Ishikawa
9de5f847ef Documentation: kunit: add description of kunit.enable parameter
The current KUnit documentation does not mention the kunit.enable
kernel parameter, making it unclear how to troubleshoot cases where
KUnit tests do not run as expected.
Add a note explaining kunit.enable parmaeter. Disabling this parameter
prevents all KUnit tests from running even if CONFIG_KUNIT is enabled.

Link: https://lore.kernel.org/r/20251021030605.41610-1-ishikawa.yuy-00@jp.fujitsu.com
Signed-off-by: Yuya Ishikawa <ishikawa.yuy-00@jp.fujitsu.com>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-10-27 11:16:09 -06:00
Luca Weiss
4158379863 arm64: defconfig: Enable configs for Fairphone 3, 4, 5 smartphones
Enable base options for MSM8953 and SM6350 SoCs and device-specific
options which are used on the Fairphone 3, Fairphone 4 and Fairphone 5.

* MSM8953 SoC
    MSM_GCC_8953, INTERCONNECT_QCOM_MSM8953
* Fairphone 3
    NFC_NXP_NCI*, TOUCHSCREEN_HIMAX_HX83112B, DRM_PANEL_HIMAX_HX83112B

* SM6350 SoC
    SM_CAMCC_6350, SM_DISPCC_6350, SM_GCC_6350, SM_GPUCC_6350,
    SM_VIDEOCC_6350, INTERCONNECT_QCOM_SM6350
* Fairphone 4
    DRM_PANEL_HIMAX_HX83112A

* Fairphone 5
    DRM_PANEL_RAYDIUM_RM692E5, TYPEC_MUX_PTN36502, INPUT_AW86927

* QCOM PMICs (used on multiple of the devices)
    BACKLIGHT_QCOM_WLED, MFD_QCOM_PM8008, REGULATOR_QCOM_PM8008,
    LEDS_CLASS_FLASH, LEDS_QCOM_FLASH

* USB audio offloading (enabled on Fairphone 4 & 5)
    SND_USB_AUDIO*, SND_SOC_USB, SND_SOC_QDSP6_USB, USB_XHCI_SIDEBAND

Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251014-arm64-defconfig-fp345-v1-1-53fe1eeb598d@fairphone.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-10-27 12:15:57 -05:00
Carlos Llamas
8080c67dd5 kunit: prevent log overwrite in param_tests
When running parameterized tests, each test case is initialized with
kunit_init_test(). This function takes the test_case->log as a parameter
but it clears it via string_stream_clear() on each iteration.

This results in only the log from the last parameter being preserved in
the test_case->log and the results from the previous parameters are lost
from the debugfs entry.

Fix this by manually setting the param_test.log to the test_case->log
after it has been initialized. This prevents kunit_init_test() from
clearing the log on each iteration.

Link: https://lore.kernel.org/r/20251024190101.2091549-1-cmllamas@google.com
Fixes: 4b59300ba4 ("kunit: Add parent kunit for parameterized test context")
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-10-27 11:13:31 -06:00
Vladimir Zapolskiy
08ce527403 arm64: dts: qcom: sm8550-hdk: Add SM8550-HDK Rear Camera Card overlay
Lantronix SM8550-HDK board may be equipped with a Rear Camera Card PCB
which contains:
* Samsung S3K33D time-of-fligt image sensor connected to CSIPHY0 (TOF),
* Omnivision OV64B40 image sensor connected to CSIPHY1 (uWide),
* Sony IMX766 image sensor connected to CSIPHY2 (Wide),
* Samsung S5K3M5 image sensor connected to CSIPHY3 (Tele),
* two flash leds.

The change adds support of a Samsung S5K3M5 camera image sensor and
two flash leds on the external camera card module.

Signed-off-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20251013235500.1883847-4-vladimir.zapolskiy@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-10-27 12:06:35 -05:00
Vladimir Zapolskiy
3f85737757 arm64: dts: qcom: sm8550-qrd: Enable CAMSS and S5K3M5 camera sensor
Enable CAMSS IP and Samsung S5K3M5 camera sensor on SM8550-QRD board.

Signed-off-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20251013235500.1883847-3-vladimir.zapolskiy@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-10-27 12:06:35 -05:00
Vladimir Zapolskiy
78db965913 arm64: dts: qcom: sm8550: Add description of MCLK pins
Add MCLK pin descriptions for all pins with such supported function
on SM8550 SoC.

Signed-off-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20251013235500.1883847-2-vladimir.zapolskiy@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-10-27 12:06:35 -05:00
Pengyu Luo
fb48d3f3ab arm64: dts: qcom: sc8280xp: Fix shifted GPI DMA channels
The GPI DMA channels in sc8280xp.dtsi are wrong. Let's fix it.

Origianl patch was rebased to the linux-next and formated to a new
patch again later, then it got the GPI DMA channels in the new patch
shifted.

Fixes: 71b12166a2 ("arm64: dts: qcom: sc8280xp: Describe GPI DMA controller nodes")
Signed-off-by: Pengyu Luo <mitltlatltl@gmail.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251013115506.103649-1-mitltlatltl@gmail.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-10-27 12:06:13 -05:00
Krishna Chaitanya Chundru
cfd8f45ddf arm64: dts: qcom: x1e80100: Add opp-level to indicate PCIe data rates
The existing OPP table for PCIe is shared across different link
configurations such as data rates 8GT/s x2 and 16GT/s x1. These
configurations often operate at the same frequency, allowing them
to reuse the same OPP entries. However, 8GT/s and 16 GT/s may have
different RPMh votes which cannot be represented accurately when
sharing a single OPP.

To address this, introduce an `opp-level` to indicate the PCIe data
rate and uniquely differentiate OPP entries even when the frequenc
is the same.

Although this platform does not currently suffer from this issue, the
change is introduced to support unification across platforms.

Append the opp level to name of the opp node to indicate both frequency
and level.

Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>
Acked-by: Manivannan Sadhasivam <mani@kernel.org>
Link: https://lore.kernel.org/r/20251013-opp_pcie-v5-4-eb64db2b4bd3@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-10-27 12:05:54 -05:00
Krishna Chaitanya Chundru
860d514f09 arm64: dts: qcom: sm8650: Add opp-level to indicate PCIe data rates
The existing OPP table for PCIe is shared across different link
configurations such as data rates 8GT/s x2 and 16GT/s x1. These
configurations often operate at the same frequency, allowing them
to reuse the same OPP entries. However, 8GT/s and 16 GT/s may have
different RPMh votes which cannot be represented accurately when
sharing a single OPP.

To address this, introduce an `opp-level` to indicate the PCIe data
rate and uniquely differentiate OPP entries even when the frequenc
is the same.

Although this platform does not currently suffer from this issue, the
change is introduced to support unification across platforms.

Append the opp level to name of the opp node to indicate both frequency
and level.

Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>
Acked-by: Manivannan Sadhasivam <mani@kernel.org>
Link: https://lore.kernel.org/r/20251013-opp_pcie-v5-3-eb64db2b4bd3@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-10-27 12:05:40 -05:00
Krishna Chaitanya Chundru
fc0ed54869 arm64: dts: qcom: sm8550: Add opp-level to indicate PCIe data rates
The existing OPP table for PCIe is shared across different link
configurations such as data rates 8GT/s x2 and 16GT/s x1. These
configurations often operate at the same frequency, allowing them
to reuse the same OPP entries. However, 8GT/s and 16 GT/s may have
different RPMh votes which cannot be represented accurately when
sharing a single OPP.

To address this, introduce an `opp-level` to indicate the PCIe data
rate and uniquely differentiate OPP entries even when the frequency
is the same.

Although this platform does not currently suffer from this issue, the
change is introduced to support unification across platforms.

Append the opp level to name of the opp node to indicate both frequency
and level.

Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>
Acked-by: Manivannan Sadhasivam <mani@kernel.org>
Link: https://lore.kernel.org/r/20251013-opp_pcie-v5-2-eb64db2b4bd3@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-10-27 12:05:40 -05:00
Krishna Chaitanya Chundru
367c2f473f arm64: dts: qcom: sm8450: Add opp-level to indicate PCIe data rates
The existing OPP table for PCIe is shared across different link
configurations such as data rates 8GT/s x2 and 16GT/s x1. These
configurations often operate at the same frequency, allowing them
to reuse the same OPP entries. However, 8GT/s and 16 GT/s may have
different RPMh votes which cannot be represented accurately when
sharing a single OPP.

To address this, introduce an `opp-level` to indicate the PCIe data
rate and uniquely differentiate OPP entries even when the frequency
is the same.

Although this platform does not currently suffer from this issue, the
change is introduced to support unification across platforms.

Append the opp level to name of the opp node to indicate both frequency
and level.

Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>
Acked-by: Manivannan Sadhasivam <mani@kernel.org>
Link: https://lore.kernel.org/r/20251013-opp_pcie-v5-1-eb64db2b4bd3@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-10-27 12:05:40 -05:00
Alexei Starovoitov
ff880798de Merge branch 'bpf-introduce-file-dynptr'
Mykyta Yatsenko says:

====================
bpf: Introduce file dynptr

From: Mykyta Yatsenko <yatsenko@meta.com>

This series adds a new dynptr kind, file dynptr, which enables BPF
programs to perform safe reads from files in a structured way.
Initial motivations include:
 * Parsing the executable’s ELF to locate thread-local variable symbols
 * Capturing stack traces when frame pointers are disabled

By leveraging the existing dynptr abstraction, we reuse the verifier’s
lifetime/size checks and keep the API consistent with existing dynptr
read helpers.

Technical details:
1. Reuses the existing freader library to read files a folio at a time.
2. bpf_dynptr_slice() and bpf_dynptr_read() always copy data from folios
into a program-provided buffer; zero-copy access is intentionally not
supported to keep it simple.
3. Reads may sleep if the requested folios are not in the page cache.
4. Few verifier changes required:
  * Support dynptr destruction in kfuncs
  * Add kfunc address substitution based on whether the program runs in
  a sleepable or non-sleepable context.

Testing:
The final patch adds a selftest that validates BPF program reads the
same data as userspace, page faults are enabled in sleepable context and
disabled in non-sleepable.

Changelog:
---
v4 -> v5
v4: https://lore.kernel.org/all/20251021200334.220542-1-mykyta.yatsenko5@gmail.com/
 * Inlined and removed kfunc_call_imm(), run overflow check for call_imm
 only if !bpf_jit_supports_far_kfunc_call().

v3 -> v4
v3: https://lore.kernel.org/bpf/20251020222538.932915-1-mykyta.yatsenko5@gmail.com/
 * Remove ringbuf usage from selftests
 * bpf_dynptr_set_null(ptr) when discarding file dynptr
 * call kfunc_call_imm() in specialize_kfunc() only, removed
 call from add_kfunc_call()

v2 -> v3
v2: https://lore.kernel.org/bpf/20251015161155.120148-1-mykyta.yatsenko5@gmail.com/
 * Add negative tests
 * Rewrote tests to use LSM for bpf_get_task_exe_file()
 * Move call_imm overflow check into kfunc_call_imm()

v1 -> v2
v1: https://lore.kernel.org/bpf/20251003160416.585080-1-mykyta.yatsenko5@gmail.com/
 * Remove ELF parsing selftest
 * Expanded u32 -> u64 refactoring, changes in include/uapi/linux/bpf.h
 * Removed freader.{c,h}, instead move freader definitions into
 buildid.h.
 * Small refactoring of the multiple folios reading algorithm
 * Directly return error after unmark_stack_slots_dynptr().
 * Make kfuncs receive trusted arguments.
 * Remove enum bpf_is_sleepable, use bool instead
 * Remove unnecessary sorting from specialize_kfunc()
 * Remove bool kfunc_in_sleepable_ctx; field from the struct
 bpf_insn_aux_data, rely on non_sleepable field introduced by Kumar
 * Refactor selftests, do madvise(...MADV_PAGEOUT) for all pages read by
 the test
 * Introduce the test for non-sleepable case, verify it fails with -EFAULT
====================

Link: https://lore.kernel.org/r/20251026203853.135105-1-mykyta.yatsenko5@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-10-27 09:56:28 -07:00
Mykyta Yatsenko
784cdf9315 selftests/bpf: add file dynptr tests
Introducing selftests for validating file-backed dynptr works as
expected.
 * validate implementation supports dynptr slice and read operations
 * validate destructors should be paired with initializers
 * validate sleepable progs can page in.

Signed-off-by: Mykyta Yatsenko <yatsenko@meta.com>
Reviewed-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20251026203853.135105-11-mykyta.yatsenko5@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-10-27 09:56:27 -07:00
Mykyta Yatsenko
2c52e8943a bpf: dispatch to sleepable file dynptr
File dynptr reads may sleep when the requested folios are not in
the page cache. To avoid sleeping in non-sleepable contexts while still
supporting valid sleepable use, given that dynptrs are non-sleepable by
default, enable sleeping only when bpf_dynptr_from_file() is invoked
from a sleepable context.

This change:
  * Introduces a sleepable constructor: bpf_dynptr_from_file_sleepable()
  * Override non-sleepable constructor with sleepable if it's always
  called in sleepable context

Signed-off-by: Mykyta Yatsenko <yatsenko@meta.com>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20251026203853.135105-10-mykyta.yatsenko5@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-10-27 09:56:27 -07:00
Mykyta Yatsenko
d869d56ca8 bpf: verifier: refactor kfunc specialization
Move kfunc specialization (function address substitution) to later stage
of verification to support a new use case, where we need to take into
consideration whether kfunc is called in sleepable context.

Minor refactoring in add_kfunc_call(), making sure that if function
fails, kfunc desc is not added to tab->descs (previously it could be
added or not, depending on what failed).

Signed-off-by: Mykyta Yatsenko <yatsenko@meta.com>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20251026203853.135105-9-mykyta.yatsenko5@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-10-27 09:56:27 -07:00
Mykyta Yatsenko
e3e36edb1b bpf: add kfuncs and helpers support for file dynptrs
Add support for file dynptr.

Introduce struct bpf_dynptr_file_impl to hold internal state for file
dynptrs, with 64-bit size and offset support.

Introduce lifecycle management kfuncs:
  - bpf_dynptr_from_file() for initialization
  - bpf_dynptr_file_discard() for destruction

Extend existing helpers to support file dynptrs in:
  - bpf_dynptr_read()
  - bpf_dynptr_slice()

Write helpers (bpf_dynptr_write() and bpf_dynptr_data()) are not
modified, as file dynptr is read-only.

Signed-off-by: Mykyta Yatsenko <yatsenko@meta.com>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20251026203853.135105-8-mykyta.yatsenko5@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-10-27 09:56:27 -07:00
Mykyta Yatsenko
8d8771dc03 bpf: add plumbing for file-backed dynptr
Add the necessary verifier plumbing for the new file-backed dynptr type.
Introduce two kfuncs for its lifecycle management:
 * bpf_dynptr_from_file() for initialization
 * bpf_dynptr_file_discard() for destruction

Currently there is no mechanism for kfunc to release dynptr, this patch
add one:
 * Dynptr release function sets meta->release_regno
 * Call unmark_stack_slots_dynptr() if meta->release_regno is set and
 dynptr ref_obj_id is set as well.

Signed-off-by: Mykyta Yatsenko <yatsenko@meta.com>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20251026203853.135105-7-mykyta.yatsenko5@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-10-27 09:56:27 -07:00
Mykyta Yatsenko
9cba966f1c bpf: verifier: centralize const dynptr check in unmark_stack_slots_dynptr()
Move the const dynptr check into unmark_stack_slots_dynptr() so callers
don’t have to duplicate it. This puts the validation next to the code
that manipulates dynptr stack slots and allows upcoming changes to reuse
it directly.

Signed-off-by: Mykyta Yatsenko <yatsenko@meta.com>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20251026203853.135105-6-mykyta.yatsenko5@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-10-27 09:56:27 -07:00
Mykyta Yatsenko
5a5fff604f lib/freader: support reading more than 2 folios
freader_fetch currently reads from at most two folios. When a read spans
into a third folio, the overflow bytes are copied adjacent to the second
folio’s data instead of being handled as a separate folio.
This patch modifies fetch algorithm to support reading from many folios.

Signed-off-by: Mykyta Yatsenko <yatsenko@meta.com>
Reviewed-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20251026203853.135105-5-mykyta.yatsenko5@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-10-27 09:56:27 -07:00
Mykyta Yatsenko
76e4fed847 lib: move freader into buildid.h
Move struct freader and prototypes of the functions operating on it into
the buildid.h.

This allows reusing freader outside buildid, e.g. for file dynptr
support added later.

Signed-off-by: Mykyta Yatsenko <yatsenko@meta.com>
Link: https://lore.kernel.org/r/20251026203853.135105-4-mykyta.yatsenko5@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-10-27 09:56:27 -07:00
Mykyta Yatsenko
531b87d865 bpf: widen dynptr size/offset to 64 bit
Dynptr currently caps size and offset at 24 bits, which isn’t sufficient
for file-backed use cases; even 32 bits can be limiting. Refactor dynptr
helpers/kfuncs to use 64-bit size and offset, ensuring consistency
across the APIs.

This change does not affect internals of xdp, skb or other dynptrs,
which continue to behave as before. Also it does not break binary
compatibility.

The widening enables large-file access support via dynptr, implemented
in the next patches.

Signed-off-by: Mykyta Yatsenko <yatsenko@meta.com>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20251026203853.135105-3-mykyta.yatsenko5@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-10-27 09:56:26 -07:00
Mykyta Yatsenko
a61a257ff5 selftests/bpf: remove unnecessary kfunc prototypes
Remove unnecessary kfunc prototypes from test programs, these are
provided by vmlinux.h

Signed-off-by: Mykyta Yatsenko <yatsenko@meta.com>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20251026203853.135105-2-mykyta.yatsenko5@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-10-27 09:56:26 -07:00
Val Packett
147d5eefab arm64: dts: qcom: x1-dell-thena: remove dp data-lanes
The commit 458de58424 ("arm64: dts: qcom: x1e80100: move dp0/1/2
data-lanes to SoC dtsi") has landed before this file was added, so
the data-lanes lines here remained.

Remove them to enable 4-lane DP on the X1E Dell Inspiron/Latitude.

Fixes: e7733b4211 ("arm64: dts: qcom: Add support for Dell Inspiron 7441 / Latitude 7455")
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Val Packett <val@packett.cool>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251012224909.14988-1-val@packett.cool
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-10-27 11:49:40 -05:00
Val Packett
1bdfe3edd4 arm64: dts: qcom: x1-dell-thena: Add missing pinctrl for eDP HPD
The commit a41d23142d ("arm64: dts: qcom: x1e80100-dell-xps13-9345:
Add missing pinctrl for eDP HPD") has applied this change to a very
similar machine, so apply it here too.

This allows us not to rely on the boot firmware to set up the pinctrl
for the eDP HPD line of the internal display.

Fixes: e7733b4211 ("arm64: dts: qcom: Add support for Dell Inspiron 7441 / Latitude 7455")
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Val Packett <val@packett.cool>
Link: https://lore.kernel.org/r/20251012224706.14311-1-val@packett.cool
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-10-27 11:49:21 -05:00
Konrad Dybcio
5b5014f667 arm64: dts: qcom: x1e80100: Move CPU idle states to their respective PSCI PDs
To make things uniform with other Qualcomm platforms, move the CPU idle
states under their PSCI power domains. No functional change.

Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251010-topic-x1e_dt_idle-v1-1-b1c8d558e635@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-10-27 11:48:36 -05:00
Le Qi
210d525d9c arm64: dts: qcom: hamoa-iot-evk: Fix 4-speaker playback support
On the HAMOA-IOT-EVK board only 2 out of 4 speakers were functional.
Unlike the CRD, which shares a single GPIO reset line for WSA1/2,
this board provides a dedicated GPIO reset for each WSA, resulting
in 4 separate reset lines.

Update the device tree accordingly so that all 4 speakers can
playback audio as expected.

Signed-off-by: Le Qi <le.qi@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251010033728.1808133-1-le.qi@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-10-27 11:47:05 -05:00
Konrad Dybcio
752c3765a9 arm64: dts: qcom: x1e80100: Describe the full 'link' region of DP hosts
The regions are larger than currently described. Rather inconveniently,
some control registers, including some related to USB4, are in that
left-out chunk.

Extend it to cover the entire region, as per the hw specification.

Fixes: 1940c25eaa ("arm64: dts: qcom: x1e80100: Add display nodes")
Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Abel Vesa <abel.vesa@linaro.org>
Link: https://lore.kernel.org/r/20251009-topic-hamoa_dp_reg-v1-1-4c70afa5f029@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-10-27 11:46:56 -05:00
Wojciech Slenska
89e4902ac7 arm64: dts: qcom: qcm2290: Add uart1 and uart5 nodes
Add nodes to support uart1 and uart5.

Signed-off-by: Wojciech Slenska <wojciech.slenska@gmail.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251009090858.32911-1-wojciech.slenska@gmail.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-10-27 11:46:32 -05:00
Wojciech Slenska
cdf9756037 arm64: dts: qcom: qcm2290: Fix uart3 QUP interconnect
The config_noc interconnect should use SLAVE_QUP_0.

Signed-off-by: Wojciech Slenska <wojciech.slenska@gmail.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251009090718.32503-1-wojciech.slenska@gmail.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-10-27 11:46:23 -05:00
Alexander Martinz
6e66efe16b arm64: dts: qcom: qcm6490-shift-otter: Enable venus node
Enable the venus node so that the video encoder/decoder will start
working.

Signed-off-by: Alexander Martinz <amartinz@shiftphones.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251009-otter-further-bringup-v2-6-5bb2f4a02cea@fairphone.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-10-27 11:46:12 -05:00
Luca Weiss
66e7483966 arm64: dts: qcom: qcm6490-shift-otter: Enable RGB LED
Enable the RGB LED connected to the PM7350C (PM8350C).

Signed-off-by: Luca Weiss <luca@lucaweiss.eu>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Reviewed-by: Pavel Machek <pavel@ucw.cz>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251009-otter-further-bringup-v2-5-5bb2f4a02cea@fairphone.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-10-27 11:46:12 -05:00
Casey Connolly
2fd302ea31 arm64: dts: qcom: qcm6490-shift-otter: Enable flash LED
Describe the flash LED on this phone.

Signed-off-by: Casey Connolly <casey.connolly@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Pavel Machek <pavel@ucw.cz>
Link: https://lore.kernel.org/r/20251009-otter-further-bringup-v2-4-5bb2f4a02cea@fairphone.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-10-27 11:46:12 -05:00
Alexander Martinz
f404fdcb50 arm64: dts: qcom: qcm6490-shift-otter: Add missing reserved-memory
It seems we also need to reserve a region of 81 MiB called "removed_mem"
otherwise we can easily hit memory errors with higher RAM usage.

Fixes: 249666e34c ("arm64: dts: qcom: add QCM6490 SHIFTphone 8")
Signed-off-by: Alexander Martinz <amartinz@shiftphones.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251009-otter-further-bringup-v2-3-5bb2f4a02cea@fairphone.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-10-27 11:46:12 -05:00
Alexander Martinz
a206ee34db arm64: dts: qcom: qcm6490-shift-otter: Remove thermal zone polling delays
As with all other devices in commit 7747a49db7 ("arm64: dts: qcom:
sc7280-*: Remove thermal zone polling delays"), apply the same change to
this device as the delays are assumed to be equal to "0" if not set.

Signed-off-by: Alexander Martinz <amartinz@shiftphones.com>
Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251009-otter-further-bringup-v2-2-5bb2f4a02cea@fairphone.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-10-27 11:46:12 -05:00
Alexander Martinz
03eb18495d arm64: dts: qcom: qcm6490-shift-otter: Fix sorting and indentation
Make sure the nodes are sorted correctly, and the indentation is
correct.

Signed-off-by: Alexander Martinz <amartinz@shiftphones.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251009-otter-further-bringup-v2-1-5bb2f4a02cea@fairphone.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-10-27 11:46:12 -05:00