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coxuintel and others added 30 commits July 29, 2020 14:18
When system enters S3 state, device enters D3 state while RAM remains
powered. From vGPU/GVT perspective, ppgtt_mm is residual in guest memory
during vGPU in D3 state, so that when guest state transits from S3->S0,
ppgtt_mm can be re-used and no need rebuild.

Previous implementation invalidate and destroy ppgtt_mm at DMLR,
regardless the power state transition is S0->S3->S0 (guest suspend or
resume) or OFF->S0 (normal boot/reboot), invalidate and destroy ppgtt_mm
is unnecessary in the former transition case.

The patch saves the vGPU D3/D0 transition state when guest writes the
PCI_PM_CTRL in vGPU's configure space, then in later DMLR, GVT can decide
whether or not invalidate and destroy ppgtt_mm is required. The
d3_entered flags is reset after DMLR.

To test this feature, make sure S3 is enabled in QEMU parameters:
i440fx: PIIX4_PM.disable_s3=0
q35: ICH9-LPC.disable_s3=0
Also need enable sleep option in guest OS if it's disabled.

v2:
- Revise commit message to more accurate description. (Kevin)
- Split patch by logic. (Zhenyu)

Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Hang Yuan <hang.yuan@linux.intel.com>
Signed-off-by: Colin Xu <colin.xu@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20200709071002.247960-2-colin.xu@intel.com
Unlike full initialization like normal boot, guest driver won't
pv_notified GVT when vGPU transit from D3->D0. If pv_notified is reset,
later vGPU operations will trigger enter into failsafe mode.

Considering the fact that vGPU will at least notify GVT pv_notified once
before D3/D0 transition, it's safe to skip reset pv_notified in D3->D0.

To test this feature, make sure S3 is enabled in QEMU parameters:
i440fx: PIIX4_PM.disable_s3=0
q35: ICH9-LPC.disable_s3=0
Also need enable sleep option in guest OS if it's disabled.

v2:
- Revise commit message to more accurate description. (Kevin)
- Split patch by logic. (Zhenyu)

Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Hang Yuan <hang.yuan@linux.intel.com>
Signed-off-by: Colin Xu <colin.xu@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20200709071002.247960-3-colin.xu@intel.com
With this case:
aplay -Dhw:x 16khz.wav 24khz.wav
There is sound distortion for 24khz.wav. The reason is that setting
PLL of WM8962 with set_bias_level function, the bias level is not
changed when 24khz.wav is played, then the PLL won't be reset, the
clock is not correct, so distortion happens.

The resolution of this issue is to remove fsl_asoc_card_set_bias_level.
Move PLL configuration to hw_params and hw_free.

After removing fsl_asoc_card_set_bias_level, also test WM8960 case,
it can work.

Fixes: 708b435 ("ASoC: fsl: Add Freescale Generic ASoC Sound Card with ASRC support")
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Acked-by: Nicolin Chen <nicoleotsuka@gmail.com>
Link: https://lore.kernel.org/r/1596420811-16690-1-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
…er list

Removing ADDITIONAL_CONTROL_4 from the list of readable registers cause
audio distortion.

This change was sent as a comment below the --- line when submitting
commit 658bb29 ("ASoC: wm8962: Do not access WM8962_GPIO_BASE"), so
it was not supposed to get merged.

Keep WM8962_ADDITIONAL_CONTROL_4 inside wm8962_readable_register() to
fix the regression.

Fixes: 658bb29 ("ASoC: wm8962: Do not access WM8962_GPIO_BASE")
Reported-by: Shengjiu Wang <shengjiu.wang@gmail.com>
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20200803115233.19034-1-festevam@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Recently we found an issue about the suspend and resume. If dmic is
recording the sound, and we run suspend and resume, after the resume,
the dmic can't work well anymore. we need to close the app and reopen
the app, then the dmic could record the sound again.

For example, we run "arecord -D hw:CARD=acp,DEV=0 -f S32_LE -c 2
-r 48000 test.wav", then suspend and resume, after the system resume
back, we speak to the dmic. then stop the arecord, use aplay to play
the test.wav, we could hear the sound recorded after resume is weird,
it is not what we speak to the dmic.

I found two registers are set in the dai_hw_params(), if the two
registers are set during the resume, this issue could be fixed.
Move the code of the dai_hw_params() into the pdm_dai_trigger(), then
these two registers will be set during resume since pdm_dai_trigger()
will be called during resume. And delete the empty function
dai_hw_params().

Signed-off-by: Hui Wang <hui.wang@canonical.com>
Reviewed-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20200730123138.5659-1-hui.wang@canonical.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Fix trivial compile warnings wrt unused functions by adding
__maybe_unused prefix:
  sound/soc/tegra/tegra186_dspk.c:74:12: warning: 'tegra186_dspk_runtime_suspend' defined but not used [-Wunused-function]
  sound/soc/tegra/tegra186_dspk.c:86:12: warning: 'tegra186_dspk_runtime_resume' defined but not used [-Wunused-function]

Fixes: 327ef64 ("ASoC: tegra: Add Tegra186 based DSPK driver")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20200803141850.23713-2-tiwai@suse.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Fix trivial compile warnings wrt unused functions by adding
__maybe_unused prefix:
  sound/soc/tegra/tegra210_admaif.c:232:12: warning: 'tegra_admaif_runtime_resume' defined but not used [-Wunused-function]
  sound/soc/tegra/tegra210_ahub.c:567:12: warning: 'tegra_ahub_runtime_suspend' defined but not used [-Wunused-function]

Fixes: f74028e ("ASoC: tegra: Add Tegra210 based ADMAIF driver")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20200803141850.23713-3-tiwai@suse.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Fix trivial compile warnings wrt unused functions by adding
__maybe_unused prefix:
  sound/soc/tegra/tegra210_ahub.c:567:12: warning: 'tegra_ahub_runtime_suspend' defined but not used [-Wunused-function]
  sound/soc/tegra/tegra210_ahub.c:579:12: warning: 'tegra_ahub_runtime_resume' defined but not used [-Wunused-function]

Fixes: 16e1bcc ("ASoC: tegra: Add Tegra210 based AHUB driver")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20200803141850.23713-4-tiwai@suse.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Fix trivial compile warnings wrt unused functions by adding
__maybe_unused prefix:
  sound/soc/tegra/tegra210_dmic.c:43:12: warning: 'tegra210_dmic_runtime_suspend' defined but not used [-Wunused-function]
  sound/soc/tegra/tegra210_dmic.c:55:12: warning: 'tegra210_dmic_runtime_resume' defined but not used [-Wunused-function]

Fixes: 8c8ff98 ("ASoC: tegra: Add Tegra210 based DMIC driver")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20200803141850.23713-5-tiwai@suse.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Fix trivial compile warnings wrt unused functions by adding
__maybe_unused prefix:
  sound/soc/tegra/tegra210_i2s.c:167:12: warning: 'tegra210_i2s_runtime_suspend' defined but not used [-Wunused-function]
  sound/soc/tegra/tegra210_i2s.c:179:12: warning: 'tegra210_i2s_runtime_resume' defined but not used [-Wunused-function]

Fixes: c0bfa98 ("ASoC: tegra: Add Tegra210 based I2S driver")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20200803141850.23713-6-tiwai@suse.de
Signed-off-by: Mark Brown <broonie@kernel.org>
The variable rtd was left unused in psc_dma_free(), even unnoticed
during conversion to a new style:
  sound/soc/fsl/mpc5200_dma.c:342:30: warning: unused variable 'rtd' [-Wunused-variable]

Drop the superfluous one.

Fixes: 6d1048b ("ASoC: fsl: mpc5200_dma: remove snd_pcm_ops")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20200803144630.9615-1-tiwai@suse.de
Signed-off-by: Mark Brown <broonie@kernel.org>
… Takashi Iwai <tiwai@suse.de>:

Hi,

this is a trivial patch set to add the missing __maybe_unused for
covering the compile warnings with CONFIG_PM=n.

Takashi

===

Takashi Iwai (5):
  ASoC: tegra: tegra186_dspk: Fix compile warning with CONFIG_PM=n
  ASoC: tegra: tegra210_admaif: Fix compile warning with CONFIG_PM=n
  ASoC: tegra: tegra210_ahub: Fix compile warning with CONFIG_PM=n
  ASoC: tegra: tegra210_dmic: Fix compile warning with CONFIG_PM=n
  ASoC: tegra: tegra210_i2s: Fix compile warning with CONFIG_PM=n

 sound/soc/tegra/tegra186_dspk.c   | 4 ++--
 sound/soc/tegra/tegra210_admaif.c | 4 ++--
 sound/soc/tegra/tegra210_ahub.c   | 4 ++--
 sound/soc/tegra/tegra210_dmic.c   | 4 ++--
 sound/soc/tegra/tegra210_i2s.c    | 4 ++--
 5 files changed, 10 insertions(+), 10 deletions(-)

--
2.16.4
We should put the reference count of the fence after calling
virtio_gpu_cmd_submit(). So add the missing dma_fence_put().

Fixes: 2cd7b6f ("drm/virtio: add in/out fence support for explicit synchronization")
Co-developed-by: Xin He <hexin.op@bytedance.com>
Signed-off-by: Xin He <hexin.op@bytedance.com>
Signed-off-by: Qi Liu <liuqi.16@bytedance.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20200721101647.42653-1-hexin.op@bytedance.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Before setting shmem->pages to NULL, kfree() should
be called.

Signed-off-by: Xin He <hexin.op@bytedance.com>
Reviewed-by: Qi Liu <liuqi.16@bytedance.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20200722051851.72662-1-hexin.op@bytedance.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Replacing string compare with "codec_dai->name" instead of comparing with
"codec_dai->component->name" in hw_params because,
Here the component name for codec RT1015 is "i2c-10EC5682:00"
and will never be "rt1015-aif1" as it is codec-dai->name.
So, strcmp() always compares and fails to set the
sysclk,pll,bratio for expected codec-dai="rt1015-aif1".

Signed-off-by: Ravulapati Vishnu vardhan rao <Vishnuvardhanrao.Ravulapati@amd.com>
Link: https://lore.kernel.org/r/20200807161046.17932-1-Vishnuvardhanrao.Ravulapati@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
When '*sgt' is allocated, we must allocated 'sizeof(**sgt)' bytes instead
of 'sizeof(*sg)'.

The sizeof(*sg) is bigger than sizeof(**sgt) so this wastes memory but
it won't lead to corruption.

Fixes: f44ffd6 ("drm/amdgpu: add support for exporting VRAM using DMA-buf v3")
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Some registers are not accessible to virtual function setup, so
skip their initialization when in VF-SRIOV mode.

v2: move SRIOV VF check into specify functions;
modify commit description and comment.

Signed-off-by: Liu ChengZhe <ChengZhe.Liu@amd.com>
Reviewed-by: Luben Tuikov <luben.tuikov@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Correct the cached smu feature state on pp_features sysfs
setting.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
The UVD/VCE PG state is managed by UVD and VCE IP. It's error-prone to
assume the bootup state in SMU based on the dpm status.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Update golden setting to improve performance on HPC
and ML apps

Signed-off-by: shiwu.zhang <shiwu.zhang@amd.com>
Tested-by: gang.long <gang.long@amd.com>
Reviewed-by: guchun.chen <guchun.chen@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
Typo in backlight refactor inctroduced wrong register offset.

[How]
Change DCE to DCN register map for PWRSEQ_REF_DIV

Cc: stable@vger.kernel.org
Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Reviewed-by: Ashley Thomas <Ashley.Thomas2@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
1. There is a calculation that is using frame_time_in_us instead of
last_render_time_in_us to calculate whether choosing an LFC multiplier
would cause the inserted frame duration to be outside of range.

2. We do not handle unsigned integer subtraction correctly and it underflows
to a really large value, which causes some logic errors.

[How]
1. Fix logic to calculate 'within range' using last_render_time_in_us
2. Split out delta_from_mid_point_delta_in_us calculation to ensure
we don't underflow and wrap around

Signed-off-by: Anthony Koo <Anthony.Koo@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
Using FRAME_UPDATE will result in infopacket to be potentially updated
one frame late.
In commit stream scenarios for previously active stream, some stale
infopacket data from previous config might be erroneously sent out on
initial frame after stream is re-enabled.

[How]
Switch to using IMMEDIATE_UPDATE mode

Signed-off-by: Anthony Koo <Anthony.Koo@amd.com>
Reviewed-by: Ashley Thomas <Ashley.Thomas2@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
Resuming from suspend, CEA blocks from EDID are not parsed and no video
modes can support YUV420. When this happens, output bpc cannot go over
8-bit with 4K modes on HDMI.

[How]
In amdgpu_dm_update_connector_after_detect(), drm_add_edid_modes() is
called after drm_connector_update_edid_property() to fully parse EDID
and update display info.

Cc: stable@vger.kernel.org
Signed-off-by: Stylon Wang <stylon.wang@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
Stream disable sequence incorretly destroys HDCP session while stream is
not blanked and while audio is not muted. This sequence causes a flash
of corruption during mode change and an audio click.

[How]
Change sequence to blank stream before destroying HDCP session. Audio will
also be muted by blanking the stream.

Cc: stable@vger.kernel.org
Signed-off-by: Jaehyun Chung <jaehyun.chung@amd.com>
Reviewed-by: Alvin Lee <Alvin.Lee2@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
GFP_KERNEL may and will sleep, and this is being executed in
a non-preemptible context; this will mess things up since it's
called inbetween DC_FP_START/END, and rescheduling will result
in the DC_FP_END later being called in a different context (or
just crashing if any floating point/vector registers/instructions
are used after the call is resumed in a different context).

Signed-off-by: Daniel Kolesa <daniel@octaforge.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Along with the recent unification of snd_soc_component_read*()
functions, the behavior of snd_soc_component_read() was changed
slightly; namely it returns the register read value directly, and even
if an error happens, it returns zero (but it prints an error
message).  That said, the caller side can't know whether it's an error
or not any longer.

Ideally this shouldn't matter much, but in practice this seems causing
a regression, as John reported.  And, grepping the tree revealed that
there are still plenty of callers that do check the error code, so
we'll need to deal with them in anyway.

As a quick band-aid over the regression, this patch changes the return
value of snd_soc_component_read() again to the negative error code.
It can't work, obviously, for 32bit register values, but it should be
enough for the known regressions, so far.

Fixes: cf6e26c ("ASoC: soc-component: merge snd_soc_component_read() and snd_soc_component_read32()")
Reported-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20200810134631.19742-1-tiwai@suse.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Looks like the q6afe-dai dapm widget registers are set as "0",
which is a not correct.

As this registers will be read by ASoC core during startup
which will throw up errors, Fix this by making the registers
as SND_SOC_NOPM as these should be never used.

With recent changes to ASoC core, every register read/write
failures are reported very verbosely. Prior to this fails to reads
are totally ignored, so we never saw any error messages.

Fixes: 24c4cbc ("ASoC: qdsp6: q6afe: Add q6afe dai driver")
Reported-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20200811120205.21805-1-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Most of the DAPM widgets for DSP ASoC components reuse reg field
of the widgets for its internal calculations, however these are not
real registers. So read/writes to these numbers are not really
valid. However ASoC core will read these registers to get default
state during startup.

With recent changes to ASoC core, every register read/write
failures are reported very verbosely. Prior to this fails to reads
are totally ignored, so we never saw any error messages.

To fix this add dummy read/write function to return default value.

Fixes: e3a3367 ("ASoC: qdsp6: q6routing: Add q6routing driver")
Reported-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20200811120205.21805-2-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
The Flex Book uses the same ALC298 codec as other Samsung laptops which
have the no headphone sound bug, like my Samsung Notebook. The Flex Book
owner used Early Patching to confirm that this quirk fixes the bug.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=207423
Signed-off-by: Mike Pozulp <pozulp.kernel@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200814045346.645367-1-pozulp.kernel@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
tiwai and others added 22 commits August 19, 2020 08:03
…/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v5.9

A bunch of fixes that came in during the merge window, mostly for issues
that were uncovered by the changes to report errors on invalid register
access plus one important fix in that code itself.
The Galaxy Book Ion uses the same ALC298 codec as other Samsung laptops
which have the no headphone sound bug, like my Samsung Notebook. The
Galaxy Book owner confirmed that this patch fixes the bug.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=207423
Signed-off-by: Mike Pozulp <pozulp.kernel@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200818165446.499821-1-pozulp.kernel@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
…-linux into drm-intel-fixes

gvt-next-fixes-2020-08-05

- Fix guest suspend/resume low performance handling of shadow ppgtt (Colin)
- Fix PV notifier handling for guest suspend/resume (Colin)

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
From: Zhenyu Wang <zhenyuw@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200805080207.GY27035@zhen-hp.sh.intel.com
Rather than manually implement our own module reference counting for perf
pmu events, finally realise that there is a module parameter to struct
pmu for this very purpose.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: stable@vger.kernel.org
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200716094643.31410-1-chris@chris-wilson.co.uk
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
(cherry picked from commit 27e897b)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Since we use the module parameters stored inside the drm_i915_device
itself, we need to ensure the mock i915_device also sets up the right
defaults.

Fixes: 8a25c4b ("drm/i915/params: switch to device specific parameters")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200728150600.4509-1-chris@chris-wilson.co.uk
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
(cherry picked from commit 98ef067)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Avoid a GPF at

<1>[   20.177320] BUG: kernel NULL pointer dereference, address: 000000000000007c
<1>[   20.177322] #PF: supervisor read access in kernel mode
<1>[   20.177323] #PF: error_code(0x0000) - not-present page
<6>[   20.177324] PGD 0 P4D 0
<4>[   20.177327] Oops: 0000 [#1] PREEMPT SMP PTI
<4>[   20.177328] CPU: 1 PID: 944 Comm: debugfs_test Not tainted 5.8.0-rc7-CI-CI_DRM_8814+ #1
<4>[   20.177330] Hardware name: Dell Inc. XPS 13 9360/0823VW, BIOS 2.9.0 07/09/2018
<4>[   20.177372] RIP: 0010:i915_lpsp_capability_show+0x44/0xc0 [i915]
<4>[   20.177374] Code: 0f b6 81 ca 0d 00 00 3c 0b 74 77 76 19 3c 0c 75 44 83 7e 7c 01 7e 2f 48 c7 c6 d7 b9 47 a0 e8 43 df 06 e1 31 c0 c3 3c 09 72 2b <8b> 46 7c 85 c0 75 e6 8b 82 e4 00 00 00 89 c2 83 e2 fb 83 fa 0a 74
<4>[   20.177376] RSP: 0018:ffffc90000cebe38 EFLAGS: 00010246
<4>[   20.177377] RAX: 0000000000000009 RBX: ffff888267fe6a58 RCX: ffff888252d10000
<4>[   20.177378] RDX: ffff88824a9a4000 RSI: 0000000000000000 RDI: ffff888267fe6a30
<4>[   20.177379] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001
<4>[   20.177380] R10: 0000000000000001 R11: 0000000000000000 R12: ffffc90000cebf08
<4>[   20.177381] R13: 00000000ffffffff R14: 0000000000000001 R15: ffff888267fe6a30
<4>[   20.177383] FS:  00007f6f9c6b5e40(0000) GS:ffff888276480000(0000) knlGS:0000000000000000
<4>[   20.177384] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4>[   20.177385] CR2: 000000000000007c CR3: 0000000255f04006 CR4: 00000000003606e0
<4>[   20.177386] Call Trace:
<4>[   20.177390]  seq_read+0xcb/0x420

which is presumably from having no encoder attached at that time.

Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/2175
Fixes: 8806211 ("drm/i915: Add i915_lpsp_capability debugfs")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Animesh Manna <animesh.manna@intel.com>
Cc: Anshuman Gupta <anshuman.gupta@intel.com>
Cc: Uma Shankar <uma.shankar@intel.com>
Cc: "Ville Syrjälä" <ville.syrjala@linux.intel.com>
Reviewed-by: Anshuman Gupta <anshuman.gupta@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200729130912.30093-1-chris@chris-wilson.co.uk
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
(cherry picked from commit a22b1a9)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
A recent bspec update removed the LPDDR4 single channel entry from the
buddy register table, but added a new four-channel entry.

Workaround 1409767108 hasn't been updated with any guidance for four
channel configurations, so we leave that alternate table unchanged for
now.

Bspec 49218
Fixes: 3fa01d6 ("drm/i915/tgl: Program BW_BUDDY registers during display init")
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200612204734.3674650-1-matthew.d.roper@intel.com
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
(cherry picked from commit ecb40d0)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
In the case of calling check_digital_port_conflicts() failed, a
negative error code -EINVAL should be returned.

Fixes: bf5da83 ("drm/i915: Move check_digital_port_conflicts() earier")
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200802111535.5200-1-tianjia.zhang@linux.alibaba.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
(cherry picked from commit 66b51b8)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
igt_mm_config() calls ilog2() on the (pseudo)random 21-bit number
s>>12.  Once in 2 million seeds, this is zero and ilog2 summons
the nasal demons.

There was an attempt to handle this case with a max(), but that's
too late; ms could already be something bizarre.

Given that the low 12 bits of s and ms are always zero, it's a lot
simpler just to divide them by 4096, then everything fits into 32
bits, and we can easily generate a random number 1 <= s <= 0x1fffff.

Fixes: 14d1b9a ("drm/i915: buddy allocator")
Signed-off-by: George Spelvin <lkml@sdf.org>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: intel-gfx@lists.freedesktop.org
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20200325192429.GA8865@SDF.ORG
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
(cherry picked from commit 21118e8)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
…er wells

The dependency between power wells is determined by the ordering of the
power well list: when enabling the power wells for a domain, this
happens walking the power well list forward, while disabling them
happens in the reverse direction. Accordingly a power well on the list
must follow any other power well it depends on.

Since the TC AUX power wells depend on TC-cold being blocked, move the
TC-cold off power well before all AUX power wells.

Fixes: 3c02934 ("drm/i915/tc/tgl: Implement TC cold sequences")
Cc: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200720232952.16228-1-imre.deak@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
(cherry picked from commit b302a2e)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
By default 'sdo_limit' is initialized with a default value of '8'
as per spec. This is overridden in cases where a different value is
required. However this is getting reset when snd_hdac_bus_init_chip()
is called again, which happens during runtime PM cycle.

Avoid this reset by moving 'sdo_limit' setup to 'snd_hdac_bus_init()'
function which would be called only once.

Fixes: 67ae482 ("ALSA: hda: add member to store ratio for stripe control")
Cc: <stable@vger.kernel.org>
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Link: https://lore.kernel.org/r/1597851130-6765-1-git-send-email-spujar@nvidia.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This reverts commit 9c9b17a.
Newly released sdma fw (51.52) provides a fix for the issue.

Signed-off-by: Jiansong Chen <Jiansong.Chen@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
There is a spelling mistake in a pr_warn message. Fix it.

Link: https://lore.kernel.org/r/20200810075824.46770-1-colin.king@canonical.com
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Driver shall add only the kernel qps to the flush list for clean up.
During async error events from the HW, driver is adding qps to this list
without checking if the qp is kernel qp or not.

Add a check to avoid user qp addition to the flush list.

Fixes: 942c9b6 ("RDMA/bnxt_re: Avoid Hard lockup during error CQE processing")
Fixes: c50866e ("bnxt_re: fix the regression due to changes in alloc_pbl")
Link: https://lore.kernel.org/r/1596689148-4023-1-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
The following message occurs when running an AI application with TID RDMA
enabled:

hfi1 0000:7f:00.0: hfi1_0: [QP74] hfi1_tid_timeout 4084
hfi1 0000:7f:00.0: hfi1_0: [QP70] hfi1_tid_timeout 4084

The issue happens when TID RDMA WRITE request is followed by an
IB_WR_RDMA_WRITE_WITH_IMM request, the latter could be completed first on
the responder side. As a result, no ACK packet for the latter could be
sent because the TID RDMA WRITE request is still being processed on the
responder side.

When the TID RDMA WRITE request is eventually completed, the requester
will wait for the IB_WR_RDMA_WRITE_WITH_IMM request to be acknowledged.

If the next request is another TID RDMA WRITE request, no TID RDMA WRITE
DATA packet could be sent because the preceding IB_WR_RDMA_WRITE_WITH_IMM
request is not completed yet.

Consequently the IB_WR_RDMA_WRITE_WITH_IMM will be retried but it will be
ignored on the responder side because the responder thinks it has already
been completed. Eventually the retry will be exhausted and the qp will be
put into error state on the requester side. On the responder side, the TID
resource timer will eventually expire because no TID RDMA WRITE DATA
packets will be received for the second TID RDMA WRITE request.  There is
also risk of a write-after-write memory corruption due to the issue.

Fix by adding a requester side interlock to prevent any potential data
corruption and TID RDMA protocol error.

Fixes: a0b34f7 ("IB/hfi1: Add interlock between a TID RDMA request and other requests")
Link: https://lore.kernel.org/r/20200811174931.191210.84093.stgit@awfm-01.aw.intel.com
Cc: <stable@vger.kernel.org> # 5.4.x+
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Kaike Wan <kaike.wan@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This patch caused some issues on SEND operation, and it should be reverted
to make the drivers work correctly. There will be a better solution that
has been tested carefully to solve the original problem.

This reverts commit 711195e.

Fixes: 711195e ("RDMA/hns: Reserve one sge in order to avoid local length error")
Link: https://lore.kernel.org/r/1597829984-20223-1-git-send-email-liweihang@huawei.com
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
…org/~agd5f/linux into drm-fixes

amd-drm-fixes-5.9-2020-08-20:

amdgpu:
- Fixes for Navy Flounder
- Misc display fixes
- RAS fix

amdkfd:
- SDMA fix for renoir

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200820041938.3928-1-alexander.deucher@amd.com
…rg/drm/drm-intel into drm-fixes

drm/i915 fixes for v5.9-rc2:
- GVT fixes
- Fix device parameter usage for selftest mock i915 device
- Fix LPSP capability debugfs NULL dereference
- Fix buddy register pagemask table
- Fix intel_atomic_check() non-negative return value
- Fix selftests passing a random 0 into ilog2()
- Fix TGL power well enable/disable ordering
- Switch to PMU module refcounting

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/87a6yp7jp3.fsf@intel.com
Mellanox and Cumulus Network were acquired by Nvidia, so change the
maintainers emails to new domain name.

Link: https://lore.kernel.org/r/20200810091100.243932-1-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
…/drm

Pull drm fixes from Dave Airlie:
 "Regular fixes pull for rc2. Usual rc2 doesn't seem too busy, mainly
  i915 and amdgpu. I'd expect the usual uptick for rc3.

  amdgpu:
   - Fix allocation size
   - SR-IOV fixes
   - Vega20 SMU feature state caching fix
   - Fix custom pptable handling
   - Arcturus golden settings update
   - Several display fixes
   - Fixes for Navy Flounder
   - Misc display fixes
   - RAS fix

  amdkfd:
   - SDMA fix for renoir

  i915:
   - Fix device parameter usage for selftest mock i915 device
   - Fix LPSP capability debugfs NULL dereference
   - Fix buddy register pagemask table
   - Fix intel_atomic_check() non-negative return value
   - Fix selftests passing a random 0 into ilog2()
   - Fix TGL power well enable/disable ordering
   - Switch to PMU module refcounting
   - GVT fixes

  virtio:
   - Add missing dma_fence_put() in virtio_gpu_execbuffer_ioctl()
   - Fix memory leak in virtio_gpu_cleanup_object()"

* tag 'drm-fixes-2020-08-21' of git://anongit.freedesktop.org/drm/drm: (34 commits)
  Revert "drm/amdgpu: disable gfxoff for navy_flounder"
  drm/i915/tgl: Make sure TC-cold is blocked before enabling TC AUX power wells
  drm/i915/selftests: Avoid passing a random 0 into ilog2
  drm/i915: Fix wrong return value in intel_atomic_check()
  drm/i915: Update bw_buddy pagemask table
  drm/i915/display: Check for an LPSP encoder before dereferencing
  drm/i915: Copy default modparams to mock i915_device
  drm/i915: Provide the perf pmu.module
  drm/amd/display: fix pow() crashing when given base 0
  drm/amd/display: Reset scrambling on Test Pattern
  drm/amd/display: fix dcn3 wide timing dsc validation
  drm/amd/display: Fix DFPstate hang due to view port changed
  drm/amd/display: Assign correct left shift
  drm/amd/display: Call DMUB for eDP power control
  drm/amdkfd: fix the wrong sdma instance query for renoir
  drm/amdgpu: parse ta firmware for navy_flounder
  drm/amdgpu: fix NULL pointer access issue when unloading driver
  drm/amdgpu: fix uninit-value in arcturus_log_thermal_throttling_event()
  drm/amdgpu: disable gfxoff for navy_flounder
  drm/amdgpu/display: use GFP_ATOMIC in dcn20_validate_bandwidth_internal
  ...
…l/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A collection of small fixes over several drivers, but all are driver-
  specific and nothing looks scary.

  Slightly large changes are seen in ASoC qcom driver for the bugs that
  were revealed by the recent ASoC core change to report the invalid
  register access errors. Also ASoC fsl got a slight intensive change
  for the distortion fix.

  Others are only trivial fixes or device-specific quirks"

* tag 'sound-5.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (25 commits)
  ALSA: hda: avoid reset of sdo_limit
  ALSA: hda/realtek: Add quirk for Samsung Galaxy Book Ion
  ALSA: usb-audio: ignore broken processing/extension unit
  ASoC: intel: Fix memleak in sst_media_open
  ASoC: wm8994: Avoid attempts to read unreadable registers
  ASoC: msm8916-wcd-analog: fix register Interrupt offset
  ASoC: wm8994: Prevent access to invalid VU register bits on WM1811
  ALSA: hda/realtek: Add model alc298-samsung-headphone
  ALSA: usb-audio: Update documentation comment for MS2109 quirk
  ALSA: isa: fix spelling mistakes in the comments
  ALSA: usb-audio: Add capture support for Saffire 6 (USB 1.1)
  ALSA: hda/realtek: Add quirk for Samsung Galaxy Flex Book
  ASoC: q6routing: add dummy register read/write function
  ASoC: q6afe-dai: mark all widgets registers as SND_SOC_NOPM
  ASoC: Make soc_component_read() returning an error code again
  ASoC: amd: Replacing component->name with codec_dai->name.
  ASoC: fsl: Fix unused variable warning
  ASoC: tegra: tegra210_i2s: Fix compile warning with CONFIG_PM=n
  ASoC: tegra: tegra210_dmic: Fix compile warning with CONFIG_PM=n
  ASoC: tegra: tegra210_ahub: Fix compile warning with CONFIG_PM=n
  ...
…t/rdma/rdma

Pull rdma fixes from Jason Gunthorpe:
 "One regression from 5.8 and a few bugs from earlier kernels:

   - Various spelling corrections in kernel prints

   - Bug fixes in hfi1 and bntx_re

   - Revert a 5.8 patch in hns

   - Batch update for Mellanox and Cumulus maintainers emails"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  MAINTAINERS: Update Mellanox and Cumulus Network addresses to new domain
  Revert "RDMA/hns: Reserve one sge in order to avoid local length error"
  RDMA/hfi1: Correct an interlock issue for TID RDMA WRITE request
  RDMA/bnxt_re: Do not add user qps to flushlist
  RDMA/core: Fix spelling mistake "Could't" -> "Couldn't"
  RDMA/usnic: Fix spelling mistake "transistion" -> "transition"
  RDMA/hns: Fix spelling mistake "epmty" -> "empty"
@pull pull bot added the ⤵️ pull label Aug 21, 2020
@pull pull bot merged commit cd02217 into vchong:master Aug 21, 2020
pull bot pushed a commit that referenced this pull request Dec 17, 2020
 CHECK: Alignment should match open parenthesis
 #24: FILE: drivers/mfd/tps65910.c:296:
 +	ret = regmap_clear_bits(tps65910->regmap, TPS65910_DEVCTRL,
  						DEVCTRL_CK32K_CTRL_MASK);

 CHECK: Alignment should match open parenthesis
 #33: FILE: drivers/mfd/tps65910.c:318:
 +	ret = regmap_set_bits(tps65910->regmap, TPS65910_DEVCTRL,
  				DEVCTRL_DEV_SLP_MASK);

 CHECK: Alignment should match open parenthesis
 #42: FILE: drivers/mfd/tps65910.c:326:
 +		ret = regmap_set_bits(tps65910->regmap,
  				TPS65910_SLEEP_KEEP_RES_ON,

 CHECK: Alignment should match open parenthesis
 #51: FILE: drivers/mfd/tps65910.c:336:
 +		ret = regmap_set_bits(tps65910->regmap,
  				TPS65910_SLEEP_KEEP_RES_ON,

 CHECK: Alignment should match open parenthesis
 #60: FILE: drivers/mfd/tps65910.c:346:
 +		ret = regmap_set_bits(tps65910->regmap,
  				TPS65910_SLEEP_KEEP_RES_ON,

 CHECK: Alignment should match open parenthesis
 #69: FILE: drivers/mfd/tps65910.c:358:
 +	regmap_clear_bits(tps65910->regmap, TPS65910_DEVCTRL,
  				DEVCTRL_DEV_SLP_MASK);

 CHECK: Alignment should match open parenthesis
 #78: FILE: drivers/mfd/tps65910.c:440:
 +	if (regmap_set_bits(tps65910->regmap, TPS65910_DEVCTRL,
  			DEVCTRL_PWR_OFF_MASK) < 0)

 CHECK: Alignment should match open parenthesis
 #83: FILE: drivers/mfd/tps65910.c:444:
 +	regmap_clear_bits(tps65910->regmap, TPS65910_DEVCTRL,
  			DEVCTRL_DEV_ON_MASK);

Signed-off-by: Lee Jones <lee.jones@linaro.org>
pull bot pushed a commit that referenced this pull request Mar 25, 2021
setup_fritz() in avmfritz.c might fail with -EIO and in this case the
isac.type and isac.write_reg is not initialized and remains 0(NULL).
A subsequent call to isac_release() will dereference isac->write_reg and
crash.

[    1.737444] BUG: kernel NULL pointer dereference, address: 0000000000000000
[    1.737809] #PF: supervisor instruction fetch in kernel mode
[    1.738106] #PF: error_code(0x0010) - not-present page
[    1.738378] PGD 0 P4D 0
[    1.738515] Oops: 0010 [#1] SMP NOPTI
[    1.738711] CPU: 0 PID: 180 Comm: systemd-udevd Not tainted 5.12.0-rc2+ #78
[    1.739077] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-48-gd9c812dda519-p
rebuilt.qemu.org 04/01/2014
[    1.739664] RIP: 0010:0x0
[    1.739807] Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
[    1.740200] RSP: 0018:ffffc9000027ba10 EFLAGS: 00010202
[    1.740478] RAX: 0000000000000000 RBX: ffff888102f41840 RCX: 0000000000000027
[    1.740853] RDX: 00000000000000ff RSI: 0000000000000020 RDI: ffff888102f41800
[    1.741226] RBP: ffffc9000027ba20 R08: ffff88817bc18440 R09: ffffc9000027b808
[    1.741600] R10: 0000000000000001 R11: 0000000000000001 R12: ffff888102f41840
[    1.741976] R13: 00000000fffffffb R14: ffff888102f41800 R15: ffff8881008b0000
[    1.742351] FS:  00007fda3a38a8c0(0000) GS:ffff88817bc00000(0000) knlGS:0000000000000000
[    1.742774] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    1.743076] CR2: ffffffffffffffd6 CR3: 00000001021ec000 CR4: 00000000000006f0
[    1.743452] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    1.743828] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    1.744206] Call Trace:
[    1.744339]  isac_release+0xcc/0xe0 [mISDNipac]
[    1.744582]  fritzpci_probe.cold+0x282/0x739 [avmfritz]
[    1.744861]  local_pci_probe+0x48/0x80
[    1.745063]  pci_device_probe+0x10f/0x1c0
[    1.745278]  really_probe+0xfb/0x420
[    1.745471]  driver_probe_device+0xe9/0x160
[    1.745693]  device_driver_attach+0x5d/0x70
[    1.745917]  __driver_attach+0x8f/0x150
[    1.746123]  ? device_driver_attach+0x70/0x70
[    1.746354]  bus_for_each_dev+0x7e/0xc0
[    1.746560]  driver_attach+0x1e/0x20
[    1.746751]  bus_add_driver+0x152/0x1f0
[    1.746957]  driver_register+0x74/0xd0
[    1.747157]  ? 0xffffffffc00d8000
[    1.747334]  __pci_register_driver+0x54/0x60
[    1.747562]  AVM_init+0x36/0x1000 [avmfritz]
[    1.747791]  do_one_initcall+0x48/0x1d0
[    1.747997]  ? __cond_resched+0x19/0x30
[    1.748206]  ? kmem_cache_alloc_trace+0x390/0x440
[    1.748458]  ? do_init_module+0x28/0x250
[    1.748669]  do_init_module+0x62/0x250
[    1.748870]  load_module+0x23ee/0x26a0
[    1.749073]  __do_sys_finit_module+0xc2/0x120
[    1.749307]  ? __do_sys_finit_module+0xc2/0x120
[    1.749549]  __x64_sys_finit_module+0x1a/0x20
[    1.749782]  do_syscall_64+0x38/0x90

Signed-off-by: Tong Zhang <ztong0001@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
pull bot pushed a commit that referenced this pull request Jul 11, 2021
commit 03623b4 ("rtc: pcf2127: add tamper detection support")
added support for timestamp interrupts. However they are not being
handled in the irq handler. If a timestamp interrupt occurs it
results in kernel disabling the interrupt and displaying the call
trace:

[  121.145580] irq 78: nobody cared (try booting with the "irqpoll" option)
...
[  121.238087] [<00000000c4d69393>] irq_default_primary_handler threaded [<000000000a90d25b>] pcf2127_rtc_irq [rtc_pcf2127]
[  121.248971] Disabling IRQ #78

Handle timestamp interrupts in pcf2127_rtc_irq(). Save time stamp
before clearing TSF1 and TSF2 flags so that it can't be overwritten.
Set a flag to mark if the timestamp is valid and only report to sysfs
if the flag is set. To mimic the hardware behavior, don’t save
another timestamp until the first one has been read by the userspace.

However, if the alarm irq is not configured, keep the old way of
handling timestamp interrupt in the timestamp0 sysfs calls.

Signed-off-by: Mian Yousaf Kaukab <ykaukab@suse.de>
Reviewed-by: Bruno Thomsen <bruno.thomsen@gmail.com>
Tested-by: Bruno Thomsen <bruno.thomsen@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210629150643.31551-1-ykaukab@suse.de
pull bot pushed a commit that referenced this pull request Dec 21, 2022
We need to detach from the power domains also on remove, not just on
probe fail so a subsequent probe works as expected.

Otherwise the following error appears on re-probe:

[   29.452005] sysfs: cannot create duplicate filename '/devices/genpd:0:3000000.remoteproc'
[   29.477121] CPU: 1 PID: 483 Comm: sh Tainted: G        W          6.1.0-rc4-00075-g71a113770bda #78
[   29.510319] Hardware name: Fairphone 4 (DT)
[   29.538335] Call trace:
[   29.564470]  dump_backtrace.part.0+0xe0/0xf0
[   29.592602]  show_stack+0x18/0x30
[   29.619616]  dump_stack_lvl+0x64/0x80
[   29.646834]  dump_stack+0x18/0x34
[   29.673541]  sysfs_warn_dup+0x60/0x7c
[   29.700592]  sysfs_create_dir_ns+0xec/0x110
[   29.728057]  kobject_add_internal+0xb8/0x374
[   29.755530]  kobject_add+0x9c/0x104
[   29.782072]  device_add+0xbc/0x8a0
[   29.808445]  device_register+0x20/0x30
[   29.835175]  genpd_dev_pm_attach_by_id+0xa4/0x190
[   29.862851]  genpd_dev_pm_attach_by_name+0x3c/0xb0
[   29.890472]  dev_pm_domain_attach_by_name+0x20/0x30
[   29.918212]  adsp_probe+0x278/0x580
[   29.944384]  platform_probe+0x68/0xc0
[   29.970603]  really_probe+0xbc/0x2dc
[   29.996662]  __driver_probe_device+0x78/0xe0
[   30.023491]  device_driver_attach+0x48/0xac
[   30.050215]  bind_store+0xb8/0x114
[   30.075957]  drv_attr_store+0x24/0x3c
[   30.101874]  sysfs_kf_write+0x44/0x54
[   30.127751]  kernfs_fop_write_iter+0x120/0x1f0
[   30.154448]  vfs_write+0x1ac/0x380
[   30.179937]  ksys_write+0x70/0x104
[   30.205274]  __arm64_sys_write+0x1c/0x2c
[   30.231060]  invoke_syscall+0x48/0x114
[   30.256594]  el0_svc_common.constprop.0+0x44/0xec
[   30.283183]  do_el0_svc+0x2c/0xd0
[   30.308320]  el0_svc+0x2c/0x84
[   30.333059]  el0t_64_sync_handler+0xf4/0x120
[   30.359001]  el0t_64_sync+0x18c/0x190
[   30.384385] kobject_add_internal failed for genpd:0:3000000.remoteproc with -EEXIST, don't try to register things with the same name in the same directory.
[   30.406029] remoteproc remoteproc0: releasing 3000000.remoteproc
[   30.416064] qcom_q6v5_pas: probe of 3000000.remoteproc failed with error -17

Fixes: 17ee2fb ("remoteproc: qcom: pas: Vote for active/proxy power domains")
Reviewed-by: Sibi Sankar <quic_sibis@quicinc.com>
Reviewed-by: Mukesh Ojha <quic_mojha@quicinc.com>
Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221118090816.100012-2-luca.weiss@fairphone.com
pull bot pushed a commit that referenced this pull request Nov 20, 2024
While fuzzing an arm64 kernel, Alexander Potapenko reported:

| BUG: KCSAN: data-race in ktime_get_mono_fast_ns / timekeeping_update
|
| write to 0xffffffc082e74248 of 56 bytes by interrupt on cpu 0:
|  update_fast_timekeeper kernel/time/timekeeping.c:430 [inline]
|  timekeeping_update+0x1d8/0x2d8 kernel/time/timekeeping.c:768
|  timekeeping_advance+0x9e8/0xb78 kernel/time/timekeeping.c:2344
|  update_wall_time+0x18/0x38 kernel/time/timekeeping.c:2360
|  [...]
|
| read to 0xffffffc082e74258 of 8 bytes by task 5260 on cpu 1:
|  __ktime_get_fast_ns kernel/time/timekeeping.c:372 [inline]
|  ktime_get_mono_fast_ns+0x88/0x174 kernel/time/timekeeping.c:489
|  init_srcu_struct_fields+0x40c/0x530 kernel/rcu/srcutree.c:263
|  init_srcu_struct+0x14/0x20 kernel/rcu/srcutree.c:311
|  [...]
|
| value changed: 0x000002f875d33266 -> 0x000002f877416866
|
| Reported by Kernel Concurrency Sanitizer on:
| CPU: 1 UID: 0 PID: 5260 Comm: syz.2.7483 Not tainted 6.12.0-rc3-dirty #78

This is a false positive data race between a seqcount latch writer and a reader
accessing stale data. Since its introduction, KCSAN has never understood the
seqcount_latch interface (due to being unannotated).

Unlike the regular seqlock interface, the seqcount_latch interface for latch
writers never has had a well-defined critical section, making it difficult to
teach tooling where the critical section starts and ends.

Introduce an instrumentable (non-raw) seqcount_latch interface, with
which we can clearly denote writer critical sections. This both helps
readability and tooling like KCSAN to understand when the writer is done
updating all latch copies.

Fixes: 88ecd15 ("seqlock, kcsan: Add annotations for KCSAN")
Reported-by: Alexander Potapenko <glider@google.com>
Co-developed-by: "Peter Zijlstra (Intel)" <peterz@infradead.org>
Signed-off-by: "Peter Zijlstra (Intel)" <peterz@infradead.org>
Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20241104161910.780003-4-elver@google.com
pull bot pushed a commit that referenced this pull request Jul 17, 2025
The conversion from compiler assisted indexing to manual
indexing wasn't done correctly. The array is still made
up of __le16 elements so multiplying the outer index by
the element size is not what we want. Fix it up.

This causes the kernel to oops when trying to transfer any
significant amount of data over wifi:

BUG: unable to handle page fault for address: ffffc900009f5282
PGD 100000067 P4D 100000067 PUD 1000fb067 PMD 102e82067 PTE 0
Oops: Oops: 0002 [#1] SMP
CPU: 1 UID: 0 PID: 99 Comm: kworker/u8:3 Not tainted 6.15.0-rc2-cl-bisect3-00604-g6204d5130a64-dirty #78 PREEMPT
Hardware name: Dell Inc. Latitude E5400                  /0D695C, BIOS A19 06/13/2013
Workqueue: events_unbound cfg80211_wiphy_work [cfg80211]
RIP: 0010:iwl_trans_pcie_tx+0x4dd/0xe60 [iwlwifi]
Code: 00 00 66 81 fa ff 0f 0f 87 42 09 00 00 3d ff 00 00 00 0f 8f 37 09 00 00 41 c1 e0 0c 41 09 d0 48 8d 14 b6 48 c1 e2 07 48 01 ca <66> 44 89 04 57 48 8d 0c 12 83 f8 3f 0f 8e 84 01 00 00 41 8b 85 80
RSP: 0018:ffffc900001c3b50 EFLAGS: 00010206
RAX: 00000000000000c1 RBX: ffff88810b180028 RCX: 00000000000000c1
RDX: 0000000000002141 RSI: 000000000000000d RDI: ffffc900009f1000
RBP: 0000000000000002 R08: 0000000000000025 R09: ffffffffa050fa60
R10: 00000000fbdbf4bc R11: 0000000000000082 R12: ffff88810e5ade40
R13: ffff88810af81588 R14: 000000000000001a R15: ffff888100dfe0c8
FS:  0000000000000000(0000) GS:ffff8881998c3000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc900009f5282 CR3: 0000000001e39000 CR4: 00000000000426f0
Call Trace:
 <TASK>
 ? rcu_is_watching+0xd/0x40
 ? __iwl_dbg+0xb1/0xe0 [iwlwifi]
 iwlagn_tx_skb+0x8e2/0xcb0 [iwldvm]
 iwlagn_mac_tx+0x18/0x30 [iwldvm]
 ieee80211_handle_wake_tx_queue+0x6c/0xc0 [mac80211]
 ieee80211_agg_start_txq+0x140/0x2e0 [mac80211]
 ieee80211_agg_tx_operational+0x126/0x210 [mac80211]
 ieee80211_process_addba_resp+0x27b/0x2a0 [mac80211]
 ieee80211_iface_work+0x4bd/0x4d0 [mac80211]
 ? _raw_spin_unlock_irq+0x1f/0x40
 cfg80211_wiphy_work+0x117/0x1f0 [cfg80211]
 process_one_work+0x1ee/0x570
 worker_thread+0x1c5/0x3b0
 ? bh_worker+0x240/0x240
 kthread+0x110/0x220
 ? kthread_queue_delayed_work+0x90/0x90
 ret_from_fork+0x28/0x40
 ? kthread_queue_delayed_work+0x90/0x90
 ret_from_fork_asm+0x11/0x20
 </TASK>
Modules linked in: ctr aes_generic ccm sch_fq_codel bnep xt_tcpudp xt_multiport xt_state iptable_filter iptable_nat nf_nat nf_conntrack nf_defrag_ipv4 ip_tables x_tables btusb btrtl btintel btbcm bluetooth ecdh_generic ecc libaes hid_generic usbhid hid binfmt_misc joydev mousedev snd_hda_codec_hdmi iwldvm snd_hda_codec_idt snd_hda_codec_generic mac80211 coretemp iTCO_wdt watchdog kvm_intel i2c_dev snd_hda_intel libarc4 kvm snd_intel_dspcfg sdhci_pci sdhci_uhs2 snd_hda_codec iwlwifi sdhci irqbypass cqhci snd_hwdep snd_hda_core cfg80211 firewire_ohci mmc_core psmouse snd_pcm i2c_i801 firewire_core pcspkr led_class uhci_hcd i2c_smbus tg3 crc_itu_t iosf_mbi snd_timer rfkill libphy ehci_pci snd ehci_hcd lpc_ich mfd_core usbcore video intel_agp usb_common soundcore intel_gtt evdev agpgart parport_pc wmi parport backlight
CR2: ffffc900009f5282
---[ end trace 0000000000000000 ]---
RIP: 0010:iwl_trans_pcie_tx+0x4dd/0xe60 [iwlwifi]
Code: 00 00 66 81 fa ff 0f 0f 87 42 09 00 00 3d ff 00 00 00 0f 8f 37 09 00 00 41 c1 e0 0c 41 09 d0 48 8d 14 b6 48 c1 e2 07 48 01 ca <66> 44 89 04 57 48 8d 0c 12 83 f8 3f 0f 8e 84 01 00 00 41 8b 85 80
RSP: 0018:ffffc900001c3b50 EFLAGS: 00010206
RAX: 00000000000000c1 RBX: ffff88810b180028 RCX: 00000000000000c1
RDX: 0000000000002141 RSI: 000000000000000d RDI: ffffc900009f1000
RBP: 0000000000000002 R08: 0000000000000025 R09: ffffffffa050fa60
R10: 00000000fbdbf4bc R11: 0000000000000082 R12: ffff88810e5ade40
R13: ffff88810af81588 R14: 000000000000001a R15: ffff888100dfe0c8
FS:  0000000000000000(0000) GS:ffff8881998c3000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc900009f5282 CR3: 0000000001e39000 CR4: 00000000000426f0
Kernel panic - not syncing: Fatal exception in interrupt
Kernel Offset: disabled
---[ end Kernel panic - not syncing: Fatal exception in interrupt ]---

Cc: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Fixes: 6204d51 ("wifi: iwlwifi: use bc entries instead of bc table also for pre-ax210")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20250711205744.28723-1-ville.syrjala@linux.intel.com
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
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