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The old value allows measuring fan speeds down to about 970 RPM and
gives timeout for anything less than that. It is problematic because it
can also be used as an indicator for fan failure or absence.
Despite having read the relevant section of "ASPEED AST2500/AST2520 A2
Datasheet – V1.7" multiple times I wasn't able to figure out what
exactly "fan tach period" and "fan tach falling point of period" mean
(both are set by the driver from the constant this patch is amending).
Experimentation with a Tioga Pass OCP board (AST2500 BMC) showed that
value of 0x0108 gives time outs for speeds below 1500 RPM and the value
offered by the patch is good for at least 750 RPM (the fans can't spin
any slower so the lower bound is unknown). Measuring with the fans
spinning takes about 30 ms, sometimes down to 18 ms, so about the same
as with the previous value.
This constant was last changed with commit 762b1e888013 ("hwmon:
(aspeed-pwm-tacho) increase fan tach period")
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Link: https://lore.kernel.org/r/20220714142344.27071-1-fercerpav@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Define pump and fan speed register offsets in
D5 Next control report, as well as its size, to expose PWM fan control.
Originally-from: Jack Doan <me@jackdoan.com>
Signed-off-by: Aleksa Savic <savicaleksa83@gmail.com>
Link: https://lore.kernel.org/r/20220717171412.11142-1-savicaleksa83@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/defconfig
Qualcomm ARM64 defconfig more updates for v5.20
This enables a few of the core drivers needed to boot the 8cx Gen 3
platform and demotes the Qualcomm USB PHY drivers to modules, as they
don't need to be builtin.
* tag 'qcom-arm64-defconfig-for-5.20-2' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
arm64: defconfig: Demote Qualcomm USB PHYs to modules
arm64: defconfig: Enable Qualcomm SC8280XP providers
Link: https://lore.kernel.org/r/20220720230140.2113129-1-bjorn.andersson@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/drivers
More Qualcomm driver changes for v5.20
This adds support for booting secondary cores, SPM, SMD-RPM and RPM
power-domain support for the MSM8909 platform.
It drops an unnecessary print in icc-bwmon, corrects SA8540P entries in
socinfo and a Kconfig build dependency for QCOM_RPMPD.
Lastly it continues to clean up up the Devicetree bindings for the
Qualcomm drivers.
* tag 'qcom-drivers-for-5.20-2' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
dt-bindings: soc: qcom: qcom,smd-rpm: add power-controller
dt-bindings: soc: qcom: aoss: document qcom,sm8450-aoss-qmp
dt-bindings: soc: qcom,rpmh-rsc: simplify qcom,tcs-config
ARM: mach-qcom: Add support for MSM8909
dt-bindings: arm: cpus: Document "qcom,msm8909-smp" enable-method
soc: qcom: spm: Add CPU data for MSM8909
dt-bindings: soc: qcom: spm: Add MSM8909 CPU compatible
soc: qcom: rpmpd: Add compatible for MSM8909
dt-bindings: power: qcom-rpmpd: Add MSM8909 power domains
soc: qcom: smd-rpm: Add compatible for MSM8909
dt-bindings: soc: qcom: smd-rpm: Add MSM8909
soc: qcom: icc-bwmon: Remove unnecessary print function dev_err()
soc: qcom: socinfo: Fix the id of SA8540P SoC
soc: qcom: Make QCOM_RPMPD depend on PM
Link: https://lore.kernel.org/r/20220720230648.2113609-1-bjorn.andersson@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux into arm/soc
AT91 SoC for 5.20
It contains updates for integration with OP-TEE by having a
dummy outer_cache.write_sec function to avoid triggering
exception when Linux tries to update secure registers.
* tag 'at91-soc-5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux:
ARM: at91: setup outer cache .write_sec() callback if needed
ARM: at91: add sam_linux_is_optee_available() function
Link: https://lore.kernel.org/r/20220721085852.1740924-1-claudiu.beznea@microchip.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux into arm/fixes
AT91 fixes for 5.19 #3
It contains one fix for LAN966 based SoCs fixing the frequency of
sys_clk. sys_clk is feeding different IPs so having proper frequency
for it in DT is necessary for proper working of different drivers.
* tag 'at91-fixes-5.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux:
ARM: dts: lan966x: fix sys_clk frequency
Link: https://lore.kernel.org/r/20220721075705.1739915-1-claudiu.beznea@microchip.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/dt
More Qualcomm ARM64 DTS updates for v5.20
Related to SDM845, the Xiaomi Mi Mix2s is introduced, the DB845c on
SDM845 gains support for the second GPI DMA controller and has the GENI
I2C and SPI instances wired up to their respective GPI DMA controller.
QCS404 USB controller and PHY assignment is corrected and IPQ8074 gains
APCS definition to handle outgoing IPC interrupts.
Lastly a range of Devicetree validation issues are addressed.
* tag 'qcom-arm64-for-5.20-2' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux: (53 commits)
arm64: dts: qcom: Add support for Xiaomi Mi Mix2s
dt-bindings: arm: qcom: Add Xiaomi Mi Mix2s bindings
dt-bindings: arm: qcom: Document lg,judyln and lg,judyp devices
dt-bindings: arm: qcom: add missing SM6350 board compatibles
dt-bindings: arm: qcom: add missing SM6125 board compatibles
dt-bindings: arm: qcom: add missing SDM845 board compatibles
dt-bindings: arm: qcom: add missing SDM636 board compatibles
dt-bindings: arm: qcom: add missing SDM630 board compatibles
dt-bindings: arm: qcom: add missing QCS404 board compatibles
dt-bindings: arm: qcom: add missing MSM8992 board compatibles
dt-bindings: arm: qcom: add missing MSM8998 board compatibles
dt-bindings: vendor-prefixes: add Shift GmbH
dt-bindings: arm: qcom: add missing SM8350 board compatibles
dt-bindings: arm: qcom: add missing SM8250 board compatibles
dt-bindings: arm: qcom: add missing SM8150 board compatibles
dt-bindings: arm: qcom: add missing MSM8994 board compatibles
dt-bindings: arm: qcom: add missing MSM8916 board compatibles
dt-bindings: arm: qcom: fix MSM8994 boards compatibles
dt-bindings: arm: qcom: fix MSM8916 MTP compatibles
dt-bindings: arm: qcom: fix Longcheer L8150 compatibles
...
Link: https://lore.kernel.org/r/20220720231643.2114565-1-bjorn.andersson@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/dt
More Qualcomm DTS updates for v5.20
This adds an additional GSBI, hwclock, smem and tsens nodes for IPQ8064,
in addition to fixing up and improving the existing descriptions of the
platform.
USB interrupts are reordered to please the Devicetree binding.
The Light Pulse Generator is defined for PM8941 and LEDs are defined for
the FairPhone2, Nexus 5 and Sony Xperia devices.
* tag 'qcom-dts-for-5.20-2' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
ARM: dts: qcom: add rpmcc missing clocks for apq/ipq8064 and msm8660
ARM: dts: qcom: msm8974: Disable remoteprocs by default
ARM: dts: qcom: ipq8064: add missing smem compatible
ARM: dts: qcom: ipq8064: add missing hwlock
ARM: dts: qcom: ipq8064: add speedbin efuse nvmem node
ARM: dts: qcom: ipq8064: fix and add some missing gsbi node
ARM: dts: qcom: ipq8064: reduce pci IO size to 64K
ARM: dts: qcom: ipq8064: disable usb phy by default
ARM: dts: qcom: ipq8064: add missing snps,dwmac compatible for gmac
ARM: dts: qcom: ipq8064: add specific dtsi with smb208 rpm regulators
ARM: dts: qcom: ipq8064: add gsbi6 missing definition
ARM: dts: qcom: ipq8064: add multiple missing pin definition
ARM: dts: qcom: msm8974-hammerhead: Add notification LED
ARM: dts: qcom: msm8974-FP2: Add notification LED
ARM: dts: qcom: msm8974-sony: Enable LPG
ARM: dts: qcom: Add LPG node to pm8941
ARM: dts: qcom: sdx65: reorder USB interrupts
ARM: dts: qcom: apq8064: create tsens device node
Link: https://lore.kernel.org/r/20220720231111.2114025-1-bjorn.andersson@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-dt into arm/dt
Devicetree bindings for Aspeed boards
1. Document the compatibles of existing Aspeed-based boards.
2. Add jabil,rbp-bmc compatible.
* tag 'dt-bindings-aspeed-5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-dt:
dt-bindings: arm: aspeed: add Aspeed Evaluation boards
dt-bindings: arm: aspeed: document board compatibles
dt-bindings: arm: aspeed: document board compatibles
Link: https://lore.kernel.org/r/20220721072415.11424-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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On Fri, Jun 17, 2022 at 02:08:52PM +0300, Stephane Eranian wrote:
> Some changes to the way invalid MSR accesses are reported by the
> kernel is causing some problems with messages printed on the
> console.
>
> We have seen several cases of ex_handler_msr() printing invalid MSR
> accesses once but the callstack multiple times causing confusion on
> the console.
> The problem here is that another earlier commit (5.13):
>
> a358f40600b3 ("once: implement DO_ONCE_LITE for non-fast-path "do once" functionality")
>
> Modifies all the pr_*_once() calls to always return true claiming
> that no caller is ever checking the return value of the functions.
>
> This is why we are seeing the callstack printed without the
> associated printk() msg.
Extract the ONCE_IF(cond) part into __ONCE_LTE_IF() and use that to
implement DO_ONCE_LITE_IF() and fix the extable code.
Fixes: a358f40600b3 ("once: implement DO_ONCE_LITE for non-fast-path "do once" functionality")
Reported-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Stephane Eranian <eranian@google.com>
Link: https://lkml.kernel.org/r/YqyVFsbviKjVGGZ9@worktop.programming.kicks-ass.net
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Have {JMP,CALL}_NOSPEC generate the same code GCC does for indirect
calls and rely on the objtool retpoline patching infrastructure.
There's no reason these should be alternatives while the vast bulk of
compiler generated retpolines are not.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
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cookie
In function sched_core_update_cookie(), a task will enqueue into the
core tree only when it enqueued before, that is, if an uncookied task
is cookied, it will not enqueue into the core tree until it enqueue
again, which will result in unnecessary force idle.
Here follows the scenario:
CPU x and CPU y are a pair of SMT siblings.
1. Start task a running on CPU x without sleeping, and task b and
task c running on CPU y without sleeping.
2. We create a cookie and share it to task a and task b, and then
we create another cookie and share it to task c.
3. Simpling core_forceidle_sum of task a and b from /proc/PID/sched
And we will find out that core_forceidle_sum of task a takes 30%
time of the sampling period, which shouldn't happen as task a and b
have the same cookie.
Then we migrate task a to CPU x', migrate task b and c to CPU y', where
CPU x' and CPU y' are a pair of SMT siblings, and sampling again, we
will found out that core_forceidle_sum of task a and b are almost zero.
To solve this problem, we enqueue the task into the core tree if it's
on rq.
Fixes: 6e33cad0af49("sched: Trivial core scheduling cookie management")
Signed-off-by: Cruz Zhao <CruzZhao@linux.alibaba.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/1656403045-100840-2-git-send-email-CruzZhao@linux.alibaba.com
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dequeue_task_rt() only decrements 'rt_rq->rt_nr_running' after having
called sched_update_tick_dependency() preventing it from re-enabling the
tick on systems that no longer have pending SCHED_RT tasks but have
multiple runnable SCHED_OTHER tasks:
dequeue_task_rt()
dequeue_rt_entity()
dequeue_rt_stack()
dequeue_top_rt_rq()
sub_nr_running() // decrements rq->nr_running
sched_update_tick_dependency()
sched_can_stop_tick() // checks rq->rt.rt_nr_running,
...
__dequeue_rt_entity()
dec_rt_tasks() // decrements rq->rt.rt_nr_running
...
Every other scheduler class performs the operation in the opposite
order, and sched_update_tick_dependency() expects the values to be
updated as such. So avoid the misbehaviour by inverting the order in
which the above operations are performed in the RT scheduler.
Fixes: 76d92ac305f2 ("sched: Migrate sched to use new tick dependency mask model")
Signed-off-by: Nicolas Saenz Julienne <nsaenzju@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Valentin Schneider <vschneid@redhat.com>
Reviewed-by: Phil Auld <pauld@redhat.com>
Link: https://lore.kernel.org/r/20220628092259.330171-1-nsaenzju@redhat.com
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Tasks the are being deboosted from SCHED_DEADLINE might enter
enqueue_task_dl() one last time and hit an erroneous BUG_ON condition:
since they are not boosted anymore, the if (is_dl_boosted()) branch is
not taken, but the else if (!dl_prio) is and inside this one we
BUG_ON(!is_dl_boosted), which is of course false (BUG_ON triggered)
otherwise we had entered the if branch above. Long story short, the
current condition doesn't make sense and always leads to triggering of a
BUG.
Fix this by only checking enqueue flags, properly: ENQUEUE_REPLENISH has
to be present, but additional flags are not a problem.
Fixes: 64be6f1f5f71 ("sched/deadline: Don't replenish from a !SCHED_DEADLINE entity")
Signed-off-by: Juri Lelli <juri.lelli@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20220714151908.533052-1-juri.lelli@redhat.com
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Document the new compatibles used on Aspeed Evaluation boards.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220529104928.79636-3-krzysztof.kozlowski@linaro.org
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https://gitlab.freedesktop.org/agd5f/linux into drm-fixes
amd-drm-fixes-5.19-2022-07-20:
amdgpu:
- Drop redundant buffer cleanup that can lead to a segfault
- Add a bo_list mutex to avoid possible list corruption in CS
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220720210917.6202-1-alexander.deucher@amd.com
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git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
- Fix the regression caused by the lack of GuC v70.
Let's accept the fallback to v69.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/YtgguaR5JYK083oZ@intel.com
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Protect the struct amdgpu_bo_list with a mutex. This is used during command
submission in order to avoid buffer object corruption as recorded in
the link below.
v2 (chk): Keep the mutex looked for the whole CS to avoid using the
list from multiple CS threads at the same time.
Suggested-by: Christian König <christian.koenig@amd.com>
Cc: Alex Deucher <Alexander.Deucher@amd.com>
Cc: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Cc: Vitaly Prosyak <Vitaly.Prosyak@amd.com>
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2048
Signed-off-by: Luben Tuikov <luben.tuikov@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Tested-by: Luben Tuikov <luben.tuikov@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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Add support for Xiaomi Mi Mix2s (polaris) handsets.
Currently working features:
- UFS
- Touchscreen
- USB 2
- Bluetooth
- Wi-Fi
- GPU
- Venus
- Display (need jdi-fhd-nt35596s panel driver, which I have sent a
patch but it haven't been into upstream yet)
Signed-off-by: Molly Sophia <mollysophia379@gmail.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220712145139.9473-2-mollysophia379@gmail.com
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Add documentation for "xiaomi,polaris" device.
Signed-off-by: Molly Sophia <mollysophia379@gmail.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220712145139.9473-1-mollysophia379@gmail.com
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Merge series from Tomer Maimon <tmaimon77@gmail.com>:
This patch set adds Arbel NPCM8XX Flash Interface Unit (FIU) support to FIU NPCM
driver and modify direct read dummy configuration.
NPCM8XX FIU supports four controllers.
The NPCM FIU driver tested on NPCM845 evaluation board.
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Add binding documentation for the LG G7 and LG V35 smartphones
which are based on Snapdragon 845 (sdm845).
Signed-off-by: Stefan Hansson <newbie13xd@gmail.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220626164536.16011-1-newbie13xd@gmail.com
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When the pipe is closed, we mark the associated watchqueue defunct by
calling watch_queue_clear(). However, while that is protected by the
watchqueue lock, new watchqueue entries aren't actually added under that
lock at all: they use the pipe->rd_wait.lock instead, and looking up
that pipe happens without any locking.
The watchqueue code uses the RCU read-side section to make sure that the
wqueue entry itself hasn't disappeared, but that does not protect the
pipe_info in any way.
So make sure to actually hold the wqueue lock when posting watch events,
properly serializing against the pipe being torn down.
Reported-by: Noam Rathaus <noamr@ssd-disclosure.com>
Cc: Greg KH <gregkh@linuxfoundation.org>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Fix SPI NO Slave Select macro definition, when all the SPI CS bits
are high which means no slave is selected.
Fixes: 21b511ddee09 ("spi: spi-cadence: Fix SPI CS gets toggling sporadically")
Signed-off-by: Sai Krishna Potthuri <lakshmi.sai.krishna.potthuri@xilinx.com>
Signed-off-by: Amit Kumar Mahapatra <amit.kumar-mahapatra@xilinx.com>
Link: https://lore.kernel.org/r/20220713164529.28444-1-amit.kumar-mahapatra@xilinx.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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The fuzzer triggers the below trace.
[ 7763.384369] unchecked MSR access error: WRMSR to 0x689
(tried to write 0x1fffffff8101349e) at rIP: 0xffffffff810704a4
(native_write_msr+0x4/0x20)
[ 7763.397420] Call Trace:
[ 7763.399881] <TASK>
[ 7763.401994] intel_pmu_lbr_restore+0x9a/0x1f0
[ 7763.406363] intel_pmu_lbr_sched_task+0x91/0x1c0
[ 7763.410992] __perf_event_task_sched_in+0x1cd/0x240
On a machine with the LBR format LBR_FORMAT_EIP_FLAGS2, when the TSX is
disabled, a TSX quirk is required to access LBR from registers.
The lbr_from_signext_quirk_needed() is introduced to determine whether
the TSX quirk should be applied. However, the
lbr_from_signext_quirk_needed() is invoked before the
intel_pmu_lbr_init(), which parses the LBR format information. Without
the correct LBR format information, the TSX quirk never be applied.
Move the lbr_from_signext_quirk_needed() into the intel_pmu_lbr_init().
Checking x86_pmu.lbr_has_tsx in the lbr_from_signext_quirk_needed() is
not required anymore.
Both LBR_FORMAT_EIP_FLAGS2 and LBR_FORMAT_INFO have LBR_TSX flag, but
only the LBR_FORMAT_EIP_FLAGS2 requirs the quirk. Update the comments
accordingly.
Fixes: 1ac7fd8159a8 ("perf/x86/intel/lbr: Support LBR format V7")
Reported-by: Vince Weaver <vincent.weaver@maine.edu>
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20220714182630.342107-1-kan.liang@linux.intel.com
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Document board compatibles already present in Linux kernel.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220521164550.91115-9-krzysztof.kozlowski@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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Document board compatibles already present in Linux kernel.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220521164550.91115-8-krzysztof.kozlowski@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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Document board compatibles already present in Linux kernel.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220521164550.91115-7-krzysztof.kozlowski@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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Document board compatibles already present in Linux kernel.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220521164550.91115-6-krzysztof.kozlowski@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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Document board compatibles already present in Linux kernel.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220521164550.91115-5-krzysztof.kozlowski@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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The following warning was seen:
WARNING: CPU: 0 PID: 0 at arch/x86/kernel/alternative.c:557 apply_returns (arch/x86/kernel/alternative.c:557 (discriminator 1))
Modules linked in:
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.19.0-rc4-00008-gee88d363d156 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.0-debian-1.16.0-4 04/01/2014
RIP: 0010:apply_returns (arch/x86/kernel/alternative.c:557 (discriminator 1))
Code: ff ff 74 cb 48 83 c5 04 49 39 ee 0f 87 81 fe ff ff e9 22 ff ff ff 0f 0b 48 83 c5 04 49 39 ee 0f 87 6d fe ff ff e9 0e ff ff ff <0f> 0b 48 83 c5 04 49 39 ee 0f 87 59 fe ff ff e9 fa fe ff ff 48 89
The warning happened when apply_returns() failed to convert "JMP
__x86_return_thunk" to RET. It was instead a JMP to nowhere, due to the
thunk relocation not getting resolved.
That rodata.o code is objcopy'd to .rodata, and later memcpy'd, so
relocations don't work (and are apparently silently ignored).
LKDTM is only used for testing, so the naked RET should be fine. So
just disable return thunks for that file.
While at it, disable objtool and KCSAN for the file.
Fixes: 0b53c374b9ef ("x86/retpoline: Use -mfunction-return")
Reported-by: kernel test robot <oliver.sang@intel.com>
Debugged-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/lkml/Ys58BxHxoDZ7rfpr@xsang-OptiPlex-9020/
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IBRS mitigation for spectre_v2 forces write to MSR_IA32_SPEC_CTRL at
every kernel entry/exit. On Enhanced IBRS parts setting
MSR_IA32_SPEC_CTRL[IBRS] only once at boot is sufficient. MSR writes at
every kernel entry/exit incur unnecessary performance loss.
When Enhanced IBRS feature is present, print a warning about this
unnecessary performance loss.
Signed-off-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/2a5eaf54583c2bfe0edc4fea64006656256cca17.1657814857.git.pawan.kumar.gupta@linux.intel.com
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Debugging missing return thunks is easier if we can see where they're
happening.
Suggested-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/lkml/Ys66hwtFcGbYmoiZ@hirez.programming.kicks-ass.net/
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Document board compatibles already present in Linux kernel.
In itself this resulted in a dt_binding_check in qcom-cpufrq-nvmem.yaml,
which was reported by Rob, solved in below change by Krzysztof and acked
by Viresh. The fix is squashed into this to avoid bisect problems.
Link: https://lore.kernel.org/r/20220627143340.477120-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220521164550.91115-4-krzysztof.kozlowski@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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The lockdown LSM is primarily used in conjunction with UEFI Secure Boot.
This LSM may also be used on machines without UEFI. It can also be
enabled when UEFI Secure Boot is disabled. One of lockdown's features
is to prevent kexec from loading untrusted kernels. Lockdown can be
enabled through a bootparam or after the kernel has booted through
securityfs.
If IMA appraisal is used with the "ima_appraise=log" boot param,
lockdown can be defeated with kexec on any machine when Secure Boot is
disabled or unavailable. IMA prevents setting "ima_appraise=log" from
the boot param when Secure Boot is enabled, but this does not cover
cases where lockdown is used without Secure Boot.
To defeat lockdown, boot without Secure Boot and add ima_appraise=log to
the kernel command line; then:
$ echo "integrity" > /sys/kernel/security/lockdown
$ echo "appraise func=KEXEC_KERNEL_CHECK appraise_type=imasig" > \
/sys/kernel/security/ima/policy
$ kexec -ls unsigned-kernel
Add a call to verify ima appraisal is set to "enforce" whenever lockdown
is enabled. This fixes CVE-2022-21505.
Cc: stable@vger.kernel.org
Fixes: 29d3c1c8dfe7 ("kexec: Allow kexec_file() with appropriate IMA policy when locked down")
Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
Acked-by: Mimi Zohar <zohar@linux.ibm.com>
Reviewed-by: John Haxby <john.haxby@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Recent Qualcomm Geni SPI nodes, e.g. on SM8450, come also with three
interconnects. This fixes dtbs_check warnings like:
sm8450-qrd.dtb: spi@a98000: interconnects: [[46, 1, 0, 46, 4, 0], [47, 2, 0, 48, 12, 0], [49, 1, 0, 50, 1, 0]] is too long
sm8450-qrd.dtb: spi@a98000: interconnect-names: ['qup-core', 'qup-config', 'qup-memory'] is too long
Fixes: 5bdcae1fe1c5 ("spi: dt-bindings: qcom,spi-geni-qcom: convert to dtschema")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220720163841.7283-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
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The NMI infrastructure cannot currently be used in loadable modules:
ERROR: modpost: "free_nmi" [drivers/soc/fujitsu/a64fx-diag.ko] undefined!
ERROR: modpost: "request_nmi" [drivers/soc/fujitsu/a64fx-diag.ko] undefined!
ERROR: modpost: "enable_nmi" [drivers/soc/fujitsu/a64fx-diag.ko] undefined!
Disable this for now to make allmodconfig build again. We may revisit
this and export those symbols instead in the future.
Reported-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Adding FIU NPCM8XX support to NPCM FIU driver.
NPCM8XX FIU supports four controllers.
As part of adding NPCM8XX support:
- Add NPCM8XX specific compatible string.
- Using an internal burst configuration register instead of a GCR
register.
- Support FIU1 controller.
Signed-off-by: Tomer Maimon <tmaimon77@gmail.com>
Link: https://lore.kernel.org/r/20220718081146.256070-4-tmaimon77@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Add a compatible string and description for Nuvoton BMC NPCM845 FIU.
Signed-off-by: Tomer Maimon <tmaimon77@gmail.com>
Link: https://lore.kernel.org/r/20220718081146.256070-3-tmaimon77@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Modify NPCM BMC FIU direct read dummy configuration that according
spi-mem direct read function.
Signed-off-by: Tomer Maimon <tmaimon77@gmail.com>
Link: https://lore.kernel.org/r/20220718081146.256070-2-tmaimon77@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Add the support for CCD offsets used on family 17h models A0h-AFh,
and family 19h models 60h-7Fh.
[ bp: Merge into a single patch. ]
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220719195256.1516-1-mario.limonciello@amd.com
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Add support for SMN communication on family 17h model A0h and family 19h
models 60h-70h.
[ bp: Merge into a single patch. ]
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Yazen Ghannam <yazen.ghannam@amd.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com> # pci_ids.h
Acked-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220719195256.1516-1-mario.limonciello@amd.com
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Document board compatibles already present in Linux kernel.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220521164550.91115-3-krzysztof.kozlowski@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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Document board compatibles already present in Linux kernel.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220521164550.91115-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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Add prefix for SHIFT GmbH, phone manufacturer
(https://www.shiftphones.com/en/).
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220521164550.91115-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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Document several board compatibles already present in Linux kernel.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220520123252.365762-9-krzysztof.kozlowski@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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Document several board compatibles already present in Linux kernel.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220520123252.365762-8-krzysztof.kozlowski@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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Document several board compatibles already present in Linux kernel.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220520123252.365762-7-krzysztof.kozlowski@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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Document several board compatibles already present in Linux kernel.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220520123252.365762-6-krzysztof.kozlowski@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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Document several board compatibles already present in Linux kernel.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20220520123252.365762-5-krzysztof.kozlowski@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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