Commit graph

1105317 commits

Author SHA1 Message Date
Miaoqian Lin
afaa7b933e
regulator: pfuze100: Fix refcount leak in pfuze_parse_regulators_dt
of_node_get() returns a node with refcount incremented.
Calling of_node_put() to drop the reference when not needed anymore.

Fixes: 3784b6d64d ("regulator: pfuze100: add pfuze100 regulator driver")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220511113506.45185-1-linmq006@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2022-05-11 17:42:17 +01:00
Charles Keepax
de2427207d
ASoC: wm9090: Remove redundant endianness flag
The endianness flag is used on the CODEC side to specify an
ambivalence to endian, typically because it is lost over the hardware
link. This device has no DAI links and as such the flag would have
no effect, remove the redundant flag.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220510153843.1029540-2-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2022-05-11 17:42:15 +01:00
Charles Keepax
69b53a097d
ASoC: wm2000: Remove redundant endianness flag
The endianness flag is used on the CODEC side to specify an
ambivalence to endian, typically because it is lost over the hardware
link. This device has no DAI links and as such the flag would have
no effect, remove the redundant flag.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220510153843.1029540-1-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2022-05-11 17:42:14 +01:00
Miaoqian Lin
2be84f7378
ASoC: mxs-saif: Fix refcount leak in mxs_saif_probe
of_parse_phandle() returns a node pointer with refcount
incremented, we should use of_node_put() on it when done.

Fixes: 08641c7c74 ("ASoC: mxs: add device tree support for mxs-saif")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220511133725.39039-1-linmq006@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2022-05-11 17:42:13 +01:00
Zheyu Ma
1a9fa95447
ASoC: cs42l56: Fix the error handling of cs42l56_i2c_probe()
The driver should goto label 'err_enable' when failing at regmap_read().

Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220511015514.1777923-1-zheyuma97@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2022-05-11 17:42:12 +01:00
Miaoqian Lin
ed46731d8e
ASoC: imx-hdmi: Fix refcount leak in imx_hdmi_probe
of_find_device_by_node() takes reference, we should use put_device()
to release it. when devm_kzalloc() fails, it doesn't have a
put_device(), it will cause refcount leak.
Add missing put_device() to fix this.

Fixes: 6a5f850aa8 ("ASoC: fsl: Add imx-hdmi machine driver")
Fixes: f670b274f7 ("ASoC: imx-hdmi: add put_device() after of_find_device_by_node()")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220511052740.46903-1-linmq006@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2022-05-11 17:42:11 +01:00
Shengjiu Wang
7aded7003a
ASoC: fsl_ssi: Add support multi fifo script
With dual fifo enabled, the case that recording mono sound
in the background, playback mono sound twice in parallal,
at second time playback sound may distort, the possible
reason is using dual fifo to playback mono sound is not
recommended.

This patch is to provide a option to use multi fifo script,
which can be dynamically configured as one fifo or two fifo
mode.

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Link: https://lore.kernel.org/r/1652183808-3745-1-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2022-05-11 17:42:10 +01:00
Miaoqian Lin
41cd312dfe
ASoC: fsl: Fix refcount leak in imx_sgtl5000_probe
of_find_i2c_device_by_node() takes a reference,
In error paths, we should call put_device() to drop
the reference to aviod refount leak.

Fixes: 81e8e49261 ("ASoC: fsl: add sgtl5000 clock support for imx-sgtl5000")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20220511065803.3957-1-linmq006@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2022-05-11 17:42:09 +01:00
Zheyu Ma
c1ce4ba502
ASoC: cs42l46: Fix the error handling of cs42l56_i2c_probe()
The driver should goto label 'err_enable' when failing at regmap_read().

Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Link: https://lore.kernel.org/r/20220510153251.1741210-2-zheyuma97@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2022-05-11 17:40:18 +01:00
Zheyu Ma
83d1b65d4c
ASoC: wm8903: Fix the error handling of wm8903_i2c_probe()
The driver should goto label 'err' when failing to request the irq.

Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220510153251.1741210-7-zheyuma97@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2022-05-11 17:40:17 +01:00
Zheyu Ma
68cacb5cf5
ASoC: tas6424: Fix the error handling of tas6424_i2c_probe()
After enabling the regulator, The driver should disable the regulator
when failing at probing.

Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Link: https://lore.kernel.org/r/20220510153251.1741210-6-zheyuma97@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2022-05-11 17:40:16 +01:00
Zheyu Ma
ef1878fd0c
ASoC: tas571x: Fix the error handling of tas571x_i2c_probe()
After enabling the regulator, The driver should disable the regulator
when failing at probing.

Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Link: https://lore.kernel.org/r/20220510153251.1741210-5-zheyuma97@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2022-05-11 17:40:15 +01:00
Zheyu Ma
7883c193d7
ASoC: rt5645: Fix the error handling of rt5645_i2c_probe()
After enabling the regulator, The driver should disable the regulator
when failing at probing.

Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Link: https://lore.kernel.org/r/20220510153251.1741210-4-zheyuma97@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2022-05-11 17:40:14 +01:00
Zheyu Ma
cf7250e95d
ASoC: cs35l36: Fix the error handling of cs35l36_i2c_probe()
The driver should goto label 'err' when failing at regmap_read().

Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220510153251.1741210-3-zheyuma97@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2022-05-11 17:40:13 +01:00
Patrice Chotard
ae16cc18f3
spi: stm32-qspi: Remove SR_BUSY bit check before sending command
Waiting for SR_BUSY bit when receiving a new command is not needed.
SR_BUSY bit is already managed in the previous command treatment.

Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Link: https://lore.kernel.org/r/20220511074644.558874-4-patrice.chotard@foss.st.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2022-05-11 17:40:10 +01:00
Patrice Chotard
0cf8d32600
spi: stm32-qspi: Always check SR_TCF flags in stm32_qspi_wait_cmd()
Currently, SR_TCF flag is checked in case there is data, this criteria
is not correct.

SR_TCF flags is set when programmed number of bytes has been transferred
to the memory device ("bytes" comprised command and data send to the
SPI device).
So even if there is no data, we must check SR_TCF flag.

Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Link: https://lore.kernel.org/r/20220511074644.558874-3-patrice.chotard@foss.st.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2022-05-11 17:40:09 +01:00
Patrice Chotard
d83d89ea68
spi: stm32-qspi: Fix wait_cmd timeout in APM mode
In APM mode, TCF and TEF flags are not set. To avoid timeout in
stm32_qspi_wait_cmd(), don't check if TCF/TEF are set.

Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reported-by: eberhard.stoll@kontron.de
Link: https://lore.kernel.org/r/20220511074644.558874-2-patrice.chotard@foss.st.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2022-05-11 17:40:08 +01:00
Mark Brown
71013db522
ASoC: Intel: boards: Chromebook configuration updates
Merge series from Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>:

Two minor changes to enable DMIC and capture for CS35L41, and one new
configuration for AlderLake hardware.
2022-05-11 17:38:15 +01:00
Alex Deucher
c65b364c52 drm/amdgpu/ctx: only reset stable pstate if the user changed it (v2)
Check if the requested stable pstate matches the current one before
changing it.  This avoids changing the stable pstate on context
destroy if the user never changed it in the first place via the
IOCTL.

v2: compare the current and requested rather than setting a flag (Lijo)

Fixes: 8cda7a4f96 ("drm/amdgpu/UAPI: add new CTX OP to get/set stable pstates")
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2022-05-11 11:50:43 -04:00
Alex Deucher
a56f445f80 Revert "drm/amd/pm: keep the BACO feature enabled for suspend"
This reverts commit eaa090538e.

Commit ebc002e3ee ("drm/amdgpu: don't use BACO for reset in S3")
stops using BACO for reset during suspend, so it's no longer
necessary to leave BACO enabled during suspend.  This fixes
resume from suspend on the navy flounder dGPU in the ASUS ROG
Strix G513QY.

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/2008
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1982
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2022-05-11 11:47:51 -04:00
Arnaldo Carvalho de Melo
467cd948f8 Merge remote-tracking branch 'torvalds/master' into perf/core
Get fixes sent via perf/urgent, etc.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-11 12:37:19 -03:00
Alexei Starovoitov
99f785d5e5 Merge branch 'selftests: xsk: add busy-poll testing plus various fixes'
Magnus Karlsson says:

====================

This patch set adds busy-poll testing to the xsk selftests. It runs
exactly the same tests as with regular softirq processing, but with
busy-poll enabled. I have also included a number of fixes to the
selftests that have been bugging me for a while or was discovered
while implementing the busy-poll support. In summary these are:

* Fix the error reporting of failed tests. Each failed test used to be
  reported as both failed and passed, messing up things.

* Added a summary test printout at the end of the test suite so that
  users do not have to scroll up and look at the result of both the
  softirq run and the busy_poll run.

* Added a timeout to the tests, so that if a test locks up, we report
  a fail and still get to run all the other tests.

* Made the stats test just look and feel like all the other
  tests. Makes the code simpler and the test reporting more
  consistent. These are the 3 last commits.

* Replaced zero length packets with packets of 64 byte length. This so
  that some of the tests will pass after commit 726e2c5929 ("veth:
  Ensure eth header is in skb's linear part").

* Added clean-up of the veth pair when terminating the test run.

* Some smaller clean-ups of unused stuff.

Note, to pass the busy-poll tests commit 8de8b71b78 ("xsk: Fix
l2fwd for copy mode + busy poll combo") need to be present. It is
present in bpf but not yet in bpf-next.

Thanks: Magnus
====================

Acked-by: Björn Töpel <bjorn@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-05-11 08:03:21 -07:00
Magnus Karlsson
27e934bec3 selftests: xsk: make stat tests not spin on getsockopt
Convert the stats tests from spinning on the getsockopt to just check
getsockopt once when the Rx thread has received all the packets. The
actual completion of receiving the last packet forms a natural point
in time when the receiver is ready to call the getsockopt to check the
stats. In the previous version , we just span on the getsockopt until
we received the right answer. This could be forever or just getting
the "correct" answer by shear luck.

The pacing_on variable can now be dropped since all test can now
handle pacing properly.

Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Link: https://lore.kernel.org/r/20220510115604.8717-10-magnus.karlsson@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-05-11 08:03:16 -07:00
Magnus Karlsson
4fec7028ff selftests: xsk: make the stats tests normal tests
Make the stats tests look and feel just like normal tests instead of
bunched under the umbrella of TEST_STATS. This means we will always
run each of them even if one fails. Also gets rid of some special case
code.

Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Link: https://lore.kernel.org/r/20220510115604.8717-9-magnus.karlsson@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-05-11 08:03:16 -07:00
Magnus Karlsson
76c576638f selftests: xsk: introduce validation functions
Introduce validation functions that can be optionally called by the Rx
and Tx threads. These are then used to replace the Rx and Tx stats
dispatchers. This so that we in the next commit can make the stats
tests proper normal tests and not be some special case, as today.

Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Link: https://lore.kernel.org/r/20220510115604.8717-8-magnus.karlsson@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-05-11 08:03:16 -07:00
Magnus Karlsson
d41cb6c474 selftests: xsk: cleanup veth pair at ctrl-c
Remove the veth pair when the tests are aborted by pressing
ctrl-c. Currently in this situation, the veth pair is left on the
system polluting the netdev space.

Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Link: https://lore.kernel.org/r/20220510115604.8717-7-magnus.karlsson@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-05-11 08:03:16 -07:00
Magnus Karlsson
db1bd7a994 selftests: xsk: add timeout to tests
Add a timeout to the tests so that if all packets have not been
received within 3 seconds, fail the ongoing test. Hinders a test from
dead-locking if there is something wrong.

Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Link: https://lore.kernel.org/r/20220510115604.8717-6-magnus.karlsson@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-05-11 08:03:15 -07:00
Magnus Karlsson
895b62eed2 selftests: xsk: fix reporting of failed tests
Fix the reporting of failed tests as it was broken in several
ways. First, a failed test was reported as both failed and passed
messing up the count. Second, tests were not aborted after a failure
and could generate more "failures" messing up the count even
more. Third, the failure reporting from the application to the shell
script was wrong. It always reported pass. And finally, the handling
of the failures in the launch script was not correct.

Correct all this by propagating the failure up through the function
calls to a calling function that can abort the test. A receiver or
sender thread will mark the new variable in the test spec called fail,
if a test has failed. This is then picked up by the main thread when
everyone else has exited and this is then marked and propagated up to
the calling script.

Also add a summary function in the calling script so that a user
does not have to go through the sub tests to see if something has
failed.

Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Link: https://lore.kernel.org/r/20220510115604.8717-5-magnus.karlsson@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-05-11 08:03:15 -07:00
Magnus Karlsson
f90062b532 selftests: xsk: run all tests for busy-poll
Execute all xsk selftests for busy-poll mode too. Currently they were
only run for the standard interrupt driven softirq mode. Replace the
unused option queue-id with the new option busy-poll.

Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Link: https://lore.kernel.org/r/20220510115604.8717-4-magnus.karlsson@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-05-11 08:03:15 -07:00
Magnus Karlsson
f3e619bb34 selftests: xsk: do not send zero-length packets
Do not try to send packets of zero length since they are dropped by
veth after commit 726e2c5929 ("veth: Ensure eth header is in skb's
linear part"). Replace these two packets with packets of length 60 so
that they are not dropped.

Also clean up the confusing naming. MIN_PKT_SIZE was really
MIN_ETH_PKT_SIZE and PKT_SIZE was both MIN_ETH_SIZE and the default
packet size called just PKT_SIZE. Make it consistent by using the
right define in the right place.

Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Link: https://lore.kernel.org/r/20220510115604.8717-3-magnus.karlsson@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-05-11 08:03:15 -07:00
Magnus Karlsson
685e64a3c9 selftests: xsk: cleanup bash scripts
Remove the spec-file that is not used any longer from the shell
scripts. Also remove an unused option.

Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Link: https://lore.kernel.org/r/20220510115604.8717-2-magnus.karlsson@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-05-11 08:03:15 -07:00
Peter Geis
e8aae154df PCI: rockchip-dwc: Add legacy interrupt support
The legacy interrupts on the rk356x PCIe controller are handled by a
single muxed interrupt. Add IRQ domain support to the pcie-dw-rockchip
driver to support the virtual domain.

Link: https://lore.kernel.org/r/20220429123832.2376381-4-pgwipeout@gmail.com
Signed-off-by: Peter Geis <pgwipeout@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Marc Zyngier <maz@kernel.org>
2022-05-11 16:01:26 +01:00
Peter Geis
431e7d2eec PCI: rockchip-dwc: Reset core at driver probe
The PCIe controller is in an unknown state at driver probe. This can
lead to undesireable effects when the driver attempts to configure the
controller.

Prevent issues in the future by resetting the core during probe.

Link: https://lore.kernel.org/r/20220429123832.2376381-3-pgwipeout@gmail.com
Tested-by: Nicolas Frattaroli <frattaroli.nicolas@gmail.com>
Signed-off-by: Peter Geis <pgwipeout@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
2022-05-11 16:01:26 +01:00
Peter Geis
931262e646 dt-bindings: PCI: Remove fallback from Rockchip DesignWare binding
The snps,dw-pcie binds to a standalone driver. It is not fully
compatible with the Rockchip implementation and causes a hang if it
binds to the device.

Remove this binding as a valid fallback.

Link: https://lore.kernel.org/r/20220429123832.2376381-2-pgwipeout@gmail.com
Signed-off-by: Peter Geis <pgwipeout@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
2022-05-11 16:01:25 +01:00
Michael Kelley
f1f8288d19 x86/hyperv: Disable hardlockup detector by default in Hyper-V guests
In newer versions of Hyper-V, the x86/x64 PMU can be virtualized
into guest VMs by explicitly enabling it. Linux kernels are typically
built to automatically enable the hardlockup detector if the PMU is
found. To prevent the possibility of false positives due to the
vagaries of VM scheduling, disable the PMU-based hardlockup detector
by default in a VM on Hyper-V.  The hardlockup detector can still be
enabled by overriding the default with the nmi_watchdog=1 option on
the kernel boot line or via sysctl at runtime.

This change mimics the approach taken with KVM guests in
commit 692297d8f9 ("watchdog: introduce the hardlockup_detector_disable()
function").

Linux on ARM64 does not provide a PMU-based hardlockup detector, so
there's no corresponding disable in the Hyper-V init code on ARM64.

Signed-off-by: Michael Kelley <mikelley@microsoft.com>
Link: https://lore.kernel.org/r/1652111063-6535-1-git-send-email-mikelley@microsoft.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
2022-05-11 14:36:46 +00:00
Michael Shych
abcebcd39f platform_data/mlxreg: Add field for notification callback
Add notification callback to inform caller that platform driver probing
has been completed. It allows to caller to perform some initialization
flow steps depending on specific driver probing completion.

Signed-off-by: Michael Shych <michaelsh@nvidia.com>
Reviewed-by: Vadim Pasternak <vadimp@nvidia.com>
Link: https://lore.kernel.org/r/20220430115809.54565-2-michaelsh@nvidia.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-05-11 16:32:30 +02:00
Hao Jia
734387ec2f sched/deadline: Remove superfluous rq clock update in push_dl_task()
The change to call update_rq_clock() before activate_task()
commit 840d719604 ("sched/deadline: Update rq_clock of later_rq
when pushing a task") is no longer needed since commit f4904815f9
("sched/deadline: Fix double accounting of rq/running bw in push & pull")
removed the add_running_bw() before the activate_task().

So we remove some comments that are no longer needed and update
rq clock in activate_task().

Signed-off-by: Hao Jia <jiahao.os@bytedance.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Reviewed-by: Daniel Bristot de Oliveira <bristot@redhat.com>
Link: https://lore.kernel.org/r/20220430085843.62939-3-jiahao.os@bytedance.com
2022-05-11 16:27:12 +02:00
Hao Jia
2679a83731 sched/core: Avoid obvious double update_rq_clock warning
When we use raw_spin_rq_lock() to acquire the rq lock and have to
update the rq clock while holding the lock, the kernel may issue
a WARN_DOUBLE_CLOCK warning.

Since we directly use raw_spin_rq_lock() to acquire rq lock instead of
rq_lock(), there is no corresponding change to rq->clock_update_flags.
In particular, we have obtained the rq lock of other CPUs, the
rq->clock_update_flags of this CPU may be RQCF_UPDATED at this time, and
then calling update_rq_clock() will trigger the WARN_DOUBLE_CLOCK warning.

So we need to clear RQCF_UPDATED of rq->clock_update_flags to avoid
the WARN_DOUBLE_CLOCK warning.

For the sched_rt_period_timer() and migrate_task_rq_dl() cases
we simply replace raw_spin_rq_lock()/raw_spin_rq_unlock() with
rq_lock()/rq_unlock().

For the {pull,push}_{rt,dl}_task() cases, we add the
double_rq_clock_clear_update() function to clear RQCF_UPDATED of
rq->clock_update_flags, and call double_rq_clock_clear_update()
before double_lock_balance()/double_rq_lock() returns to avoid the
WARN_DOUBLE_CLOCK warning.

Some call trace reports:
Call Trace 1:
 <IRQ>
 sched_rt_period_timer+0x10f/0x3a0
 ? enqueue_top_rt_rq+0x110/0x110
 __hrtimer_run_queues+0x1a9/0x490
 hrtimer_interrupt+0x10b/0x240
 __sysvec_apic_timer_interrupt+0x8a/0x250
 sysvec_apic_timer_interrupt+0x9a/0xd0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x12/0x20

Call Trace 2:
 <TASK>
 activate_task+0x8b/0x110
 push_rt_task.part.108+0x241/0x2c0
 push_rt_tasks+0x15/0x30
 finish_task_switch+0xaa/0x2e0
 ? __switch_to+0x134/0x420
 __schedule+0x343/0x8e0
 ? hrtimer_start_range_ns+0x101/0x340
 schedule+0x4e/0xb0
 do_nanosleep+0x8e/0x160
 hrtimer_nanosleep+0x89/0x120
 ? hrtimer_init_sleeper+0x90/0x90
 __x64_sys_nanosleep+0x96/0xd0
 do_syscall_64+0x34/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Call Trace 3:
 <TASK>
 deactivate_task+0x93/0xe0
 pull_rt_task+0x33e/0x400
 balance_rt+0x7e/0x90
 __schedule+0x62f/0x8e0
 do_task_dead+0x3f/0x50
 do_exit+0x7b8/0xbb0
 do_group_exit+0x2d/0x90
 get_signal+0x9df/0x9e0
 ? preempt_count_add+0x56/0xa0
 ? __remove_hrtimer+0x35/0x70
 arch_do_signal_or_restart+0x36/0x720
 ? nanosleep_copyout+0x39/0x50
 ? do_nanosleep+0x131/0x160
 ? audit_filter_inodes+0xf5/0x120
 exit_to_user_mode_prepare+0x10f/0x1e0
 syscall_exit_to_user_mode+0x17/0x30
 do_syscall_64+0x40/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Call Trace 4:
 update_rq_clock+0x128/0x1a0
 migrate_task_rq_dl+0xec/0x310
 set_task_cpu+0x84/0x1e4
 try_to_wake_up+0x1d8/0x5c0
 wake_up_process+0x1c/0x30
 hrtimer_wakeup+0x24/0x3c
 __hrtimer_run_queues+0x114/0x270
 hrtimer_interrupt+0xe8/0x244
 arch_timer_handler_phys+0x30/0x50
 handle_percpu_devid_irq+0x88/0x140
 generic_handle_domain_irq+0x40/0x60
 gic_handle_irq+0x48/0xe0
 call_on_irq_stack+0x2c/0x60
 do_interrupt_handler+0x80/0x84

Steps to reproduce:
1. Enable CONFIG_SCHED_DEBUG when compiling the kernel
2. echo 1 > /sys/kernel/debug/clear_warn_once
   echo "WARN_DOUBLE_CLOCK" > /sys/kernel/debug/sched/features
   echo "NO_RT_PUSH_IPI" > /sys/kernel/debug/sched/features
3. Run some rt/dl tasks that periodically work and sleep, e.g.
Create 2*n rt or dl (90% running) tasks via rt-app (on a system
with n CPUs), and Dietmar Eggemann reports Call Trace 4 when running
on PREEMPT_RT kernel.

Signed-off-by: Hao Jia <jiahao.os@bytedance.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Link: https://lore.kernel.org/r/20220430085843.62939-2-jiahao.os@bytedance.com
2022-05-11 16:27:11 +02:00
Ravi Bangoria
9cb23f598c perf/ibs: Fix comment
s/IBS Op Data 2/IBS Op Data 1/ for MSR 0xc0011035.

Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220509044914.1473-9-ravi.bangoria@amd.com
2022-05-11 16:27:10 +02:00
Ravi Bangoria
838de1d843 perf/amd/ibs: Advertise zen4_ibs_extensions as pmu capability attribute
PMU driver can advertise certain feature via capability attribute('caps'
sysfs directory) which can be consumed by userspace tools like perf. Add
zen4_ibs_extensions capability attribute for IBS pmus. This attribute
will be enabled when CPUID_Fn8000001B_EAX[11] is set.

With patch on Zen4:

  $ ls /sys/bus/event_source/devices/ibs_op/caps
  zen4_ibs_extensions

Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220509044914.1473-5-ravi.bangoria@amd.com
2022-05-11 16:27:10 +02:00
Ravi Bangoria
ba5d35b442 perf/amd/ibs: Add support for L3 miss filtering
IBS L3 miss filtering works by tagging an instruction on IBS counter
overflow and generating an NMI if the tagged instruction causes an L3
miss. Samples without an L3 miss are discarded and counter is reset
with random value (between 1-15 for fetch pmu and 1-127 for op pmu).
This helps in reducing sampling overhead when user is interested only
in such samples. One of the use case of such filtered samples is to
feed data to page-migration daemon in tiered memory systems.

Add support for L3 miss filtering in IBS driver via new pmu attribute
"l3missonly". Example usage:

  # perf record -a -e ibs_op/l3missonly=1/ --raw-samples sleep 5

Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220509044914.1473-4-ravi.bangoria@amd.com
2022-05-11 16:27:10 +02:00
Ravi Bangoria
2a7a7e6586 perf/amd/ibs: Use ->is_visible callback for dynamic attributes
Currently, some attributes are added at build time whereas others
at boot time depending on IBS pmu capabilities. Instead, we can
just add all attribute groups at build time but hide individual
group at boot time using more appropriate ->is_visible() callback.

Also, struct perf_ibs has bunch of fields for pmu attributes which
just pass on the pointer, does not do anything else. Remove them.

Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220509044914.1473-3-ravi.bangoria@amd.com
2022-05-11 16:27:09 +02:00
Ravi Bangoria
39b2ca75ee perf/amd/ibs: Cascade pmu init functions' return value
IBS pmu initialization code ignores return value provided by
callee functions. Fix it.

Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220509044914.1473-2-ravi.bangoria@amd.com
2022-05-11 16:27:09 +02:00
Kan Liang
f758bc5a91 perf/x86/uncore: Add new Alder Lake and Raptor Lake support
From the perspective of the uncore PMU, there is nothing changed for the
new Alder Lake N and Raptor Lake P.

Add new PCIIDs of IMC.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220504194413.1003071-5-kan.liang@linux.intel.com
2022-05-11 16:27:09 +02:00
Kan Liang
e5ae168e83 perf/x86/uncore: Clean up uncore_pci_ids[]
The initialization code to assign PCI IDs for different platforms is
similar. Add the new macros to reduce the redundant code.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220504194413.1003071-4-kan.liang@linux.intel.com
2022-05-11 16:27:08 +02:00
Kan Liang
cd971104ac perf/x86/cstate: Add new Alder Lake and Raptor Lake support
From the perspective of Intel cstate residency counters, there is nothing
changed for the new Alder Lake N and Raptor Lake P.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220504194413.1003071-3-kan.liang@linux.intel.com
2022-05-11 16:27:08 +02:00
Kan Liang
d773a73366 perf/x86/msr: Add new Alder Lake and Raptor Lake support
The new Alder Lake N and Raptor Lake P also support PPERF and SMI_COUNT
MSRs.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220504194413.1003071-2-kan.liang@linux.intel.com
2022-05-11 16:27:08 +02:00
Kan Liang
c2a960f7c5 perf/x86: Add new Alder Lake and Raptor Lake support
From PMU's perspective, there is no difference for the new Alder Lake N
and Raptor Lake P.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220504194413.1003071-1-kan.liang@linux.intel.com
2022-05-11 16:27:08 +02:00
Peter Zijlstra
47319846a9 Linux 5.18-rc5
-----BEGIN PGP SIGNATURE-----
 
 iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAmJu9FYeHHRvcnZhbGRz
 QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiGAyEH/16xtJSpLmLwrQzG
 o+4ToQxSQ+/9UHyu0RTEvHg2THm9/8emtIuYyc/5FgdoWctcSa3AaDcveWmuWmkS
 KYcdhfJsaEqjNHS3OPYXN84fmo9Hel7263shu5+IYmP/sN0DfQp6UWTryX1q4B3Q
 4Pdutkuq63Uwd8nBZ5LXQBumaBrmkkuMgWEdT4+6FOo1mPzwdIGBxCuz1UsNNl5k
 chLWxkQfe2eqgWbYJrgCQfrVdORXVtoU2fGilZUNrHRVGkkldXkkz5clJfapyZD3
 odmZCEbrE4GPKgZwCmDERMfD1hzhZDtYKiHfOQ506szH5ykJjPBcOjHed7dA60eB
 J3+wdek=
 =39Ca
 -----END PGP SIGNATURE-----

Merge branch 'v5.18-rc5'

Obtain the new INTEL_FAM6 stuff required.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
2022-05-11 16:27:06 +02:00
Waiman Long
434e09e757 locking/qrwlock: Change "queue rwlock" to "queued rwlock"
Queued rwlock was originally named "queue rwlock" which wasn't quite
grammatically correct. However there are still some "queue rwlock"
references in the code. Change those to "queued rwlock" for consistency.

Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20220510192134.434753-1-longman@redhat.com
2022-05-11 16:27:04 +02:00