Commit Graph

842026 Commits

Author SHA1 Message Date
Kuninori Morimoto
ca1c67d160
ASoC: atmel: atmel-classd: consider CPU-Platform possibility
commit 02602401e5 ("ASoC: atmel: atmel-classd: don't select
unnecessary Platform")

Current ALSA SoC avoid to add duplicate component to rtd,
and this driver was selecting CPU component as Platform component.
Thus, above patch removed Platform settings from this driver,
because it assumed these are same component.

But, some CPU driver is using generic DMAEngine, in such case, both
CPU component and Platform component will have same of_node/name.
In other words, there are some components which are different but
have same of_node/name.

In such case, Card driver definitely need to select Platform even
though it is same as CPU.
It is depends on CPU driver, but is difficult to know it from Card driver.
This patch reverts above patch.

Fixes: commit 02602401e5 ("ASoC: atmel: atmel-classd: don't select unnecessary Platform")
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-28 15:09:19 +01:00
Kuninori Morimoto
8a90efd15e
ASoC: vc4: vc4_htmi: consider CPU-Platform possibility
commit 6c6de1c9e2 ("ASoC: vc4: vc4_hdmi: don't select unnecessary
Platform")

Current ALSA SoC avoid to add duplicate component to rtd,
and this driver was selecting CPU component as Platform component.
Thus, above patch removed Platform settings from this driver,
because it assumed these are same component.

But, some CPU driver is using generic DMAEngine, in such case, both
CPU component and Platform component will have same of_node/name.
In other words, there are some components which are different but
have same of_node/name.

In such case, Card driver definitely need to select Platform even
though it is same as CPU.
It is depends on CPU driver, but is difficult to know it from Card driver.
This patch reverts above patch.

Fixes: commit 6c6de1c9e2 ("ASoC: vc4: vc4_hdmi: don't select unnecessary Platform")
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-28 15:09:09 +01:00
Colin Ian King
1ad741d0e8
ASoC: topology: fix memory leaks on sm, se and sbe
Currently when a kstrdup fails the error exit paths don't free
the allocations for sm, se and sbe.  This can be fixed by assigning
kc[i].private_value to these before doing the ksrtdup so that the error
exit path will be able to free these objects.

Addresses-Coverity: ("Resource leak")
Fixes: 9f90af3a99 ("ASoC: topology: Consolidate and fix asoc_tplg_dapm_widget_*_create flow")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-28 15:08:49 +01:00
Kuninori Morimoto
8af26493c0
ASoC: atmel: atmel-pcm-dma.c: use devm_snd_dmaengine_pcm_register()
We have devm_xxx version of snd_dmaengine_pcm_register,
let's use it.

This patch also removes related empty functions

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-28 15:08:38 +01:00
Jerome Brunet
8fc22fa4b2
ASoC: meson: axg-card: remove useless check on codec
While checking cpus before dereferencing the pointer is required, it is
not necessary for codecs. 'codec' can't possibly be NULL in the loop

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-28 13:43:32 +01:00
Jerome Brunet
3461473998
ASoC: soc-core: support dai_link with platforms_num != 1
Add support platforms_num != 1 in dai_link. Initially, the main purpose of
this change was to make the platform optional in the dai_link, instead of
inserting the dummy platform driver.

This particular case had just been solved by Kuninori Morimoto with
commit 1d76898928 ("ASoC: soc-core: allow no Platform on dai_link").

However, this change may still be useful for those who need multiple
platform components on a single dai_link (it solves one of the FIXME
note in soc-core)

Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-28 13:41:19 +01:00
Jerome Brunet
af18b13fed
ASoC: soc-core: defer card registration if codec component is missing
Like cpus and platforms, defer sound card initialization if the codec
component is missing when initializing the dai_link

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-28 13:40:58 +01:00
Codrin Ciubotariu
8af6b2291e
ASoC: codecs: ad193x: Reset used registers at probe
Since the ad193x codecs have no software reset, we have to reinitialize the
registers after a hardware reset to assure no previous values are kept.

Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-28 13:40:37 +01:00
Codrin Ciubotariu
bc0a5f43d7
ASoC: codecs: ad193x: Group register initialization at probe
Create a structure with the register initialization values at probe and
use it to initialize all the registers at once.

Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-28 13:40:15 +01:00
Mark Brown
53c8b29abe Linux 5.2-rc6
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Merge tag 'v5.2-rc6' into asoc-5.3

Linux 5.2-rc6
2019-06-26 12:39:34 +01:00
Kuninori Morimoto
e3303268f9
ASoC: soc-core: don't use soc_find_component() at snd_soc_find_dai()
commit b9f2e25c59 ("ASoC: soc-core: use soc_find_component() at
snd_soc_find_dai()") used soc_find_component() at snd_soc_find_dai(),
but, some CPU driver has CPU component for DAI and Platform component,
for example generic DMAEngine component.
In such case, CPU component and Platform component have same
of_node / name.

Here soc_find_component() returns *1st* found component.
Thus, we shouldn't use soc_find_component() at snd_soc_find_dai().
This patch fixup this it, and add comment to indicate this limitation.

Fixes: commit b9f2e25c59 ("ASoC: soc-core: use soc_find_component() at snd_soc_find_dai()")
Reported-by: Dmitry Osipenko <digetx@gmail.com>
Reported-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-26 12:28:56 +01:00
Kuninori Morimoto
526a6d45b0
ASoC: rsnd: add missing pin sharing with SSI9
When SSI9 is sharing pin with SSI0, we need to care about it,
but is missing. This patch fixup it.

Reported-by: Hien Dang <hien.dang.eb@renesas.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: Chaoliang Qin <chaoliang.qin.jg@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-26 12:28:35 +01:00
Kuninori Morimoto
dfea7b2c5c
ASoC: rsnd: ssiu: tidyup SSI_MODE1/2 settings
R-Car Sound can use pin sharing and multi-SSI for
SSI0/1/2/3/4/9.
Because complex HW settings and spaghetti code,
the settings for SSI9 pin sharing with SSI0 doesn't work.

This patch tidyup settings for it.

Reported-by: Hien Dang <hien.dang.eb@renesas.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: Chaoliang Qin <chaoliang.qin.jg@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-26 12:28:14 +01:00
Charles Keepax
472e5df013
ASoC: madera: Update SPDX headers
The madera driver was merged too late to catch Thomas Gleixner's cleanup
of the SPDX headers tree wide. Update the headers to match what was done
in that patch.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-26 12:27:50 +01:00
Kamil Lulko
a8cd7066f0
ASoC: Intel: Skylake: Strip T and L from TLV IPCs
cAVS modules do not require Type and Length header within the
set_module_params IPC. This is also true for Vendor modules. The
userspace (like tinymix) always appends this header to TLV controls
which are used for set_module_params. Simply assume this header is
always present in the payload and omit it from the IPC.

Signed-off-by: Kamil Lulko <kamilx.lulko@intel.com>
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-25 15:33:57 +01:00
Amadeusz Sławiński
02923faa6b
ASoC: Intel: Skylake: Reset pipeline before its deletion
Before actual deletion, pipeline should enter RESET state. Currently,
pipe skips this checkpoint and goes straight to the finish line.
This is not the expected path by the FW, so correct it.

Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@intel.com>
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-25 15:33:54 +01:00
Cezary Rojewski
9f4f42d710
ASoC: Intel: Common: Fix NULL dereference in tx_wait_done
rx_data and rx_bytes present for tx_wait_done are optional parameters.
If not provided, function should not attempt to copy received data.
This change fixes memcpy NULL pointer dereference issue occurring when
optional rx_data is NULL while received message size is non-zero.

Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-25 15:33:50 +01:00
Gustaw Lewandowski
26ae204908
ASoC: Intel: Fix race condition in IPC rx list
Since there are multiple IPCs being sent in a short span of time, there
is a possibility of more than one message being on the Rx list after
receiving response from firmware. In such cases, when the first
notification of interrupt from firmware is received, driver retrieves
the message from the Rx list but does not delete it from the list till
the next lock. In the meantime, when another interrupt is received from
the firmware, driver is reading the previous message again since the
previous message has not been removed from the list.

Signed-off-by: Gustaw Lewandowski <gustaw.lewandowski@intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-25 15:33:43 +01:00
Cezary Rojewski
078759399f
ASoC: Intel: Skylake: Read HIPCT extension before clearing DONE bit
Host clears DONE bit to signal IPC target it has completed the
operation. Once this is done, IPC target i.e. DSP may proceed with the
next reply, filling registers with new portion of data.

Because of this, host should always read all registers prior to clearing
DONE and BUSY bits to ensure no desynchronization happens the time in
between clearing bits and reading message data (here, extension).

Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-25 15:33:39 +01:00
Amadeusz Sławiński
9f90af3a99
ASoC: topology: Consolidate and fix asoc_tplg_dapm_widget_*_create flow
There are a few soc_tplg_dapm_widget_*_create functions with similar
content, but slightly different flow, unify their flow and make sure
that we go to error handler and free memory in case of failure.

Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Acked-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-25 15:33:34 +01:00
Amadeusz Sławiński
3cde818cd0
ASoC: topology: Consolidate how dtexts and dvalues are freed
Provide helper functions and use them to free dtexts and dvalues in
topology. This is followup cleanup after related changes in this area as
suggested in:
https://mailman.alsa-project.org/pipermail/alsa-devel/2019-January/144761.html

Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-25 15:33:30 +01:00
Amadeusz Sławiński
0f6ff78540
ASoC: Intel: hdac_hdmi: Set ops to NULL on remove
When we unload Skylake driver we may end up calling
hdac_component_master_unbind(), it uses acomp->audio_ops, which we set
in hdmi_codec_probe(), so we need to set it to NULL in hdmi_codec_remove(),
otherwise we will dereference no longer existing pointer.

Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-25 15:33:25 +01:00
Amadeusz Sławiński
6ee927f2f0
ASoC: Intel: Skylake: Fix NULL ptr dereference when unloading clk dev
When driver is probed, we iterate over NHLT and check if clk entries are
present. For each such entry we call register_skl_clk and keep the
result in data->clk[].
Currently data->clk is sparsely indexed using NHLT table iterator, while
when freeing we use number of registered entries. Let's just use
data->avail_clk_cnt as index, so it can be reset back in
unregister_src_clk.

Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-25 15:33:21 +01:00
Amadeusz Sławiński
e79986ce50
ASoC: Intel: Skylake: Properly cleanup on component removal
When we remove component we need to reverse things which were done on
init, this consists of topology cleanup, lists cleanup and releasing
firmware.

Currently cleanup handlers are put in wrong places or otherwise missing.
So add proper component cleanup function and perform cleanups in it.

Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-25 15:33:16 +01:00
Amadeusz Sławiński
5b8e4c1c66
ASoC: Intel: Skylake: Add function to cleanup debugfs interface
Currently debugfs has no cleanup function. Add skl_debufs_exit function
so we can clean after ourselves properly.

Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-25 15:33:12 +01:00
Amadeusz Sławiński
9f6115acc3
ASoC: Intel: Skylake: Don't return failure on machine driver reload
When we unload and reload machine driver, we shouldn't return that we
failed to initialize. This allows to reload machine driver, without
having to unload whole stack.

Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-25 15:33:08 +01:00
Amadeusz Sławiński
09f448a415
ASoC: compress: Fix memory leak from snd_soc_new_compress
Change kzalloc to devm_kzalloc, so compr gets automatically freed when
it's no longer needed.

Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-25 15:33:04 +01:00
Amadeusz Sławiński
8a5b0177a7
ALSA: hdac: Fix codec name after machine driver is unloaded and reloaded
Currently on each driver reload internal counter is being increased. It
causes failure to enumerate driver devices, as they have hardcoded:
.codec_name = "ehdaudio0D2",
As there is currently no devices with multiple hda codecs and there is
currently no established way to reliably differentiate, between them,
always assign bus->idx = 0;

This fixes a problem when we unload and reload machine driver idx gets
incremented, so .codec_name would've needed to be set to "ehdaudio1D2"
after first reload and so on.

Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-25 15:32:58 +01:00
Amadeusz Sławiński
776cb3b80e
ASoC: Intel: Skylake: Initialize lists before access so they are safe to use
If skl_probe_work() was not run driver ends up dereferencing NULL
pointer when operating on lists in skl_platform_unregister().
To fix this initialize lists in skl_create(). Also run
cancel_work_sync() before all cleanup functions, so we don't end up
unnecessarily running probe work.

Easily reproducible with:
while true; do modprobe snd_soc_skl; rmmod snd_soc_skl; done
(with the assumption that relevant drivers are added to blacklist on
system boot)

Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-25 15:32:47 +01:00
Paweł Harłoziński
d5fcaaba54
ASoC: Intel: Skylake: Use recommended SDxFMT programming sequence
For BXT platforms, the recommended sequence to program the SDxFMT is to
first couple the stream, write the format and decouple again.
For all other platforms said sequence remains unchanged.

To prevent code duplication, IS_BXT (and consequently IS_CFL) macro is
relocated to hda_codec.h file so it can be accessed by SKL driver.

Signed-off-by: Paweł Harłoziński <pawel.harlozinski@intel.com>
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-25 15:32:36 +01:00
Curtis Malainey
24043d60ff
ASoC: rt5677: depop stereo dac
Upon enabling the ASRC DAC we need a delay to avoid popping the
speakers.

Signed-off-by: Curtis Malainey <cujomalainey@chromium.org>
Cc: Ross Zwisler <zwisler@chromium.org>
Tested-by: Ross Zwisler <zwisler@google.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-25 12:11:55 +01:00
Enric Balletbo i Serra
30b233b1cb
ASoC: rk3399_gru_sound: Support 32, 44.1 and 88.2 kHz sample rates
According to the datasheet the max98357a also supports 32, 44.1 and
88.2 kHz sample rate. This support was also introduced recently by
commit fdf34366d3 ("ASoC: max98357a: add missing supported rates").

Actually the machine driver validates the supported sample rates but
this is not really needed because the component driver can all apply
whatever constraints are needed and do their own validation. So, remove
the checks from the machine driver as are not needed at all. This way,
we also support 32, 44.1 and 88.2 kHz sample rates and we get rid of the
errors like the below.

  rk3399-gru-sound sound: rockchip_sound_max98357a_hw_params() doesn't support this sample rate: 44100
  rk3399-gru-sound sound: ASoC: machine hw_params failed: -22

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-24 17:24:25 +01:00
Kuninori Morimoto
b9f2e25c59
ASoC: soc-core: use soc_find_component() at snd_soc_find_dai()
snd_soc_find_dai() finds component first via specified
snd_soc_dai_link_component, and find DAI from it.

We already have soc_find_component() to find component,
but soc_find_dai() has original implementation to find component.

We shouldn't have duplicate implementation to do same things.
This patch uses soc_find_component() at soc_find_dai()

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-24 17:24:03 +01:00
Kuninori Morimoto
c1e230f0f7
ASoC: soc-core: soc_find_component() uses snd_soc_dai_link_component
soc_find_component() is using "of_node" and "name" to finding component,
but we should use snd_soc_dai_link_component now, because it is created
to such purpose.

This patch uses snd_soc_dai_link_component for soc_find_component().

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-24 17:23:42 +01:00
Kuninori Morimoto
a9ec84966f
ASoC: soc-core: soc_find_component() uses snd_soc_is_matching_component()
ALSA SoC already has snd_soc_is_matching_component() to confirming
matching component, but, soc_find_component() has original
implementation to confirm component.

We shouldn't have duplicate implementation to do same things.
This patch uses snd_soc_is_matching_component() at soc_find_component()

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-24 17:23:19 +01:00
Kuninori Morimoto
7d7db5d3c3
ASoC: soc-core: move soc_find_component()
move soc_find_component() next to snd_soc_is_matching_component().
This is prepare for soc_find_component() cleanup

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-24 17:22:53 +01:00
YueHaibing
a2438253ba
ASoC: SOF: Intel: hda: remove duplicated include from hda.c
Remove duplicated include.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-24 17:22:43 +01:00
Linus Torvalds
4b972a01a7 Linux 5.2-rc6 2019-06-22 16:01:36 -07:00
Linus Torvalds
6698a71a1e IOMMU Fix for v5.2-rc5:
- Revert a commit from the previous pile of fixes which causes
 	  new lockdep splats. It is better to revert it for now and work
 	  on a better and more well tested fix.
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Merge tag 'iommu-fix-v5.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull iommu fix from Joerg Roedel:
 "Revert a commit from the previous pile of fixes which causes new
  lockdep splats. It is better to revert it for now and work on a better
  and more well tested fix"

* tag 'iommu-fix-v5.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  Revert "iommu/vt-d: Fix lock inversion between iommu->lock and device_domain_lock"
2019-06-22 14:08:47 -07:00
Peter Xu
0aafc8ae66 Revert "iommu/vt-d: Fix lock inversion between iommu->lock and device_domain_lock"
This reverts commit 7560cc3ca7.

With 5.2.0-rc5 I can easily trigger this with lockdep and iommu=pt:

    ======================================================
    WARNING: possible circular locking dependency detected
    5.2.0-rc5 #78 Not tainted
    ------------------------------------------------------
    swapper/0/1 is trying to acquire lock:
    00000000ea2b3beb (&(&iommu->lock)->rlock){+.+.}, at: domain_context_mapping_one+0xa5/0x4e0
    but task is already holding lock:
    00000000a681907b (device_domain_lock){....}, at: domain_context_mapping_one+0x8d/0x4e0
    which lock already depends on the new lock.
    the existing dependency chain (in reverse order) is:
    -> #1 (device_domain_lock){....}:
           _raw_spin_lock_irqsave+0x3c/0x50
           dmar_insert_one_dev_info+0xbb/0x510
           domain_add_dev_info+0x50/0x90
           dev_prepare_static_identity_mapping+0x30/0x68
           intel_iommu_init+0xddd/0x1422
           pci_iommu_init+0x16/0x3f
           do_one_initcall+0x5d/0x2b4
           kernel_init_freeable+0x218/0x2c1
           kernel_init+0xa/0x100
           ret_from_fork+0x3a/0x50
    -> #0 (&(&iommu->lock)->rlock){+.+.}:
           lock_acquire+0x9e/0x170
           _raw_spin_lock+0x25/0x30
           domain_context_mapping_one+0xa5/0x4e0
           pci_for_each_dma_alias+0x30/0x140
           dmar_insert_one_dev_info+0x3b2/0x510
           domain_add_dev_info+0x50/0x90
           dev_prepare_static_identity_mapping+0x30/0x68
           intel_iommu_init+0xddd/0x1422
           pci_iommu_init+0x16/0x3f
           do_one_initcall+0x5d/0x2b4
           kernel_init_freeable+0x218/0x2c1
           kernel_init+0xa/0x100
           ret_from_fork+0x3a/0x50

    other info that might help us debug this:
     Possible unsafe locking scenario:
           CPU0                    CPU1
           ----                    ----
      lock(device_domain_lock);
                                   lock(&(&iommu->lock)->rlock);
                                   lock(device_domain_lock);
      lock(&(&iommu->lock)->rlock);

     *** DEADLOCK ***
    2 locks held by swapper/0/1:
     #0: 00000000033eb13d (dmar_global_lock){++++}, at: intel_iommu_init+0x1e0/0x1422
     #1: 00000000a681907b (device_domain_lock){....}, at: domain_context_mapping_one+0x8d/0x4e0

    stack backtrace:
    CPU: 2 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc5 #78
    Hardware name: LENOVO 20KGS35G01/20KGS35G01, BIOS N23ET50W (1.25 ) 06/25/2018
    Call Trace:
     dump_stack+0x85/0xc0
     print_circular_bug.cold.57+0x15c/0x195
     __lock_acquire+0x152a/0x1710
     lock_acquire+0x9e/0x170
     ? domain_context_mapping_one+0xa5/0x4e0
     _raw_spin_lock+0x25/0x30
     ? domain_context_mapping_one+0xa5/0x4e0
     domain_context_mapping_one+0xa5/0x4e0
     ? domain_context_mapping_one+0x4e0/0x4e0
     pci_for_each_dma_alias+0x30/0x140
     dmar_insert_one_dev_info+0x3b2/0x510
     domain_add_dev_info+0x50/0x90
     dev_prepare_static_identity_mapping+0x30/0x68
     intel_iommu_init+0xddd/0x1422
     ? printk+0x58/0x6f
     ? lockdep_hardirqs_on+0xf0/0x180
     ? do_early_param+0x8e/0x8e
     ? e820__memblock_setup+0x63/0x63
     pci_iommu_init+0x16/0x3f
     do_one_initcall+0x5d/0x2b4
     ? do_early_param+0x8e/0x8e
     ? rcu_read_lock_sched_held+0x55/0x60
     ? do_early_param+0x8e/0x8e
     kernel_init_freeable+0x218/0x2c1
     ? rest_init+0x230/0x230
     kernel_init+0xa/0x100
     ret_from_fork+0x3a/0x50

domain_context_mapping_one() is taking device_domain_lock first then
iommu lock, while dmar_insert_one_dev_info() is doing the reverse.

That should be introduced by commit:

7560cc3ca7 ("iommu/vt-d: Fix lock inversion between iommu->lock and
              device_domain_lock", 2019-05-27)

So far I still cannot figure out how the previous deadlock was
triggered (I cannot find iommu lock taken before calling of
iommu_flush_dev_iotlb()), however I'm pretty sure that that change
should be incomplete at least because it does not fix all the places
so we're still taking the locks in different orders, while reverting
that commit is very clean to me so far that we should always take
device_domain_lock first then the iommu lock.

We can continue to try to find the real culprit mentioned in
7560cc3ca7, but for now I think we should revert it to fix current
breakage.

CC: Joerg Roedel <joro@8bytes.org>
CC: Lu Baolu <baolu.lu@linux.intel.com>
CC: dave.jiang@intel.com
Signed-off-by: Peter Xu <peterx@redhat.com>
Tested-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2019-06-22 21:19:58 +02:00
Linus Torvalds
b253d5f3ec pci-v5.2-fixes-1
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Merge tag 'pci-v5.2-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI fix from Bjorn Helgaas:
 "If an IOMMU is present, ignore the P2PDMA whitelist we added for v5.2
  because we don't yet know how to support P2PDMA in that case (Logan
  Gunthorpe)"

* tag 'pci-v5.2-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  PCI/P2PDMA: Ignore root complex whitelist when an IOMMU is present
2019-06-22 09:42:29 -07:00
Linus Torvalds
f410276646 SCSI fixes on 20190622
Three driver fixes (and one version number update): a suspend hang in
 ufs, a qla hard lock on module removal and a qedi panic during
 discovery.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Three driver fixes (and one version number update): a suspend hang in
  ufs, a qla hard lock on module removal and a qedi panic during
  discovery"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: qla2xxx: Fix hardlockup in abort command during driver remove
  scsi: ufs: Avoid runtime suspend possibly being blocked forever
  scsi: qedi: update driver version to 8.37.0.20
  scsi: qedi: Check targetname while finding boot target information
2019-06-22 09:39:03 -07:00
Linus Torvalds
a8282bf087 powerpc fixes for 5.2 #5
Seven fixes, all for bugs introduced this cycle.
 
 The commit to add KASAN support broke booting on 32-bit SMP machines, due to a
 refactoring that moved some setup out of the secondary CPU path.
 
 A fix for another 32-bit SMP bug introduced by the fast syscall entry
 implementation for 32-bit BOOKE. And a build fix for the same commit.
 
 Our change to allow the DAWR to be force enabled on Power9 introduced a bug in
 KVM, where we clobber r3 leading to a host crash.
 
 The same commit also exposed a previously unreachable bug in the nested KVM
 handling of DAWR, which could lead to an oops in a nested host.
 
 One of the DMA reworks broke the b43legacy WiFi driver on some people's
 powermacs, fix it by enabling a 30-bit ZONE_DMA on 32-bit.
 
 A fix for TLB flushing in KVM introduced a new bug, as it neglected to also
 flush the ERAT, this could lead to memory corruption in the guest.
 
 Thanks to:
   Aaro Koskinen, Christoph Hellwig, Christophe Leroy, Larry Finger, Michael
   Neuling, Suraj Jitindar Singh.
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Merge tag 'powerpc-5.2-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:
 "This is a frustratingly large batch at rc5. Some of these were sent
  earlier but were missed by me due to being distracted by other things,
  and some took a while to track down due to needing manual bisection on
  old hardware. But still we clearly need to improve our testing of KVM,
  and of 32-bit, so that we catch these earlier.

  Summary: seven fixes, all for bugs introduced this cycle.

   - The commit to add KASAN support broke booting on 32-bit SMP
     machines, due to a refactoring that moved some setup out of the
     secondary CPU path.

   - A fix for another 32-bit SMP bug introduced by the fast syscall
     entry implementation for 32-bit BOOKE. And a build fix for the same
     commit.

   - Our change to allow the DAWR to be force enabled on Power9
     introduced a bug in KVM, where we clobber r3 leading to a host
     crash.

   - The same commit also exposed a previously unreachable bug in the
     nested KVM handling of DAWR, which could lead to an oops in a
     nested host.

   - One of the DMA reworks broke the b43legacy WiFi driver on some
     people's powermacs, fix it by enabling a 30-bit ZONE_DMA on 32-bit.

   - A fix for TLB flushing in KVM introduced a new bug, as it neglected
     to also flush the ERAT, this could lead to memory corruption in the
     guest.

  Thanks to: Aaro Koskinen, Christoph Hellwig, Christophe Leroy, Larry
  Finger, Michael Neuling, Suraj Jitindar Singh"

* tag 'powerpc-5.2-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  KVM: PPC: Book3S HV: Invalidate ERAT when flushing guest TLB entries
  powerpc: enable a 30-bit ZONE_DMA for 32-bit pmac
  KVM: PPC: Book3S HV: Only write DAWR[X] when handling h_set_dawr in real mode
  KVM: PPC: Book3S HV: Fix r3 corruption in h_set_dabr()
  powerpc/32: fix build failure on book3e with KVM
  powerpc/booke: fix fast syscall entry on SMP
  powerpc/32s: fix initial setup of segment registers on secondary CPU
2019-06-22 09:09:42 -07:00
Marcel Holtmann
693cd8ce3f Bluetooth: Fix regression with minimum encryption key size alignment
When trying to align the minimum encryption key size requirement for
Bluetooth connections, it turns out doing this in a central location in
the HCI connection handling code is not possible.

Original Bluetooth version up to 2.0 used a security model where the
L2CAP service would enforce authentication and encryption.  Starting
with Bluetooth 2.1 and Secure Simple Pairing that model has changed into
that the connection initiator is responsible for providing an encrypted
ACL link before any L2CAP communication can happen.

Now connecting Bluetooth 2.1 or later devices with Bluetooth 2.0 and
before devices are causing a regression.  The encryption key size check
needs to be moved out of the HCI connection handling into the L2CAP
channel setup.

To achieve this, the current check inside hci_conn_security() has been
moved into l2cap_check_enc_key_size() helper function and then called
from four decisions point inside L2CAP to cover all combinations of
Secure Simple Pairing enabled devices and device using legacy pairing
and legacy service security model.

Fixes: d5bb334a8e ("Bluetooth: Align minimum encryption key size for LE and BR/EDR connections")
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=203643
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-06-22 09:07:39 -07:00
Linus Torvalds
c356dc4b54 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Fix leak of unqueued fragments in ipv6 nf_defrag, from Guillaume
    Nault.

 2) Don't access the DDM interface unless the transceiver implements it
    in bnx2x, from Mauro S. M. Rodrigues.

 3) Don't double fetch 'len' from userspace in sock_getsockopt(), from
    JingYi Hou.

 4) Sign extension overflow in lio_core, from Colin Ian King.

 5) Various netem bug fixes wrt. corrupted packets from Jakub Kicinski.

 6) Fix epollout hang in hvsock, from Sunil Muthuswamy.

 7) Fix regression in default fib6_type, from David Ahern.

 8) Handle memory limits in tcp_fragment more appropriately, from Eric
    Dumazet.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (24 commits)
  tcp: refine memory limit test in tcp_fragment()
  inet: clear num_timeout reqsk_alloc()
  net: mvpp2: debugfs: Add pmap to fs dump
  ipv6: Default fib6_type to RTN_UNICAST when not set
  net: hns3: Fix inconsistent indenting
  net/af_iucv: always register net_device notifier
  net/af_iucv: build proper skbs for HiperTransport
  net/af_iucv: remove GFP_DMA restriction for HiperTransport
  net: dsa: mv88e6xxx: fix shift of FID bits in mv88e6185_g1_vtu_loadpurge()
  hvsock: fix epollout hang from race condition
  net/udp_gso: Allow TX timestamp with UDP GSO
  net: netem: fix use after free and double free with packet corruption
  net: netem: fix backlog accounting for corrupted GSO frames
  net: lio_core: fix potential sign-extension overflow on large shift
  tipc: pass tunnel dev as NULL to udp_tunnel(6)_xmit_skb
  ip6_tunnel: allow not to count pkts on tstats by passing dev as NULL
  ip_tunnel: allow not to count pkts on tstats by setting skb's dev to NULL
  tun: wake up waitqueues after IFF_UP is set
  net: remove duplicate fetch in sock_getsockopt
  tipc: fix issues with early FAILOVER_MSG from peer
  ...
2019-06-21 22:23:35 -07:00
Eric Dumazet
b6653b3629 tcp: refine memory limit test in tcp_fragment()
tcp_fragment() might be called for skbs in the write queue.

Memory limits might have been exceeded because tcp_sendmsg() only
checks limits at full skb (64KB) boundaries.

Therefore, we need to make sure tcp_fragment() wont punish applications
that might have setup very low SO_SNDBUF values.

Fixes: f070ef2ac6 ("tcp: tcp_fragment() should apply sane memory limits")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Christoph Paasch <cpaasch@apple.com>
Tested-by: Christoph Paasch <cpaasch@apple.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-21 20:58:42 -04:00
Linus Torvalds
121bddf39a Pull request for 5.1-rc5
- 2 minor EFA fixes
 - 10 hfi1 fixes related to scaling issues
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma fixes from Doug Ledford:
 "This is probably our last -rc pull request. We don't have anything
  else outstanding at the moment anyway, and with the summer months on
  us and people taking trips, I expect the next weeks leading up to the
  merge window to be pretty calm and sedate.

  This has two simple, no brainer fixes for the EFA driver.

  Then it has ten not quite so simple fixes for the hfi1 driver. The
  problem with them is that they aren't simply one liner typo fixes.
  They're still fixes, but they're more complex issues like livelock
  under heavy load where the answer was to change work queue usage and
  spinlock usage to resolve the problem, or issues with orphaned
  requests during certain types of failures like link down which
  required some more complex work to fix too. They all look like
  legitimate fixes to me, they just aren't small like I wish they were.

  Summary:

   - 2 minor EFA fixes

   - 10 hfi1 fixes related to scaling issues"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  RDMA/efa: Handle mmap insertions overflow
  RDMA/efa: Fix success return value in case of error
  IB/hfi1: Handle port down properly in pio
  IB/hfi1: Handle wakeup of orphaned QPs for pio
  IB/hfi1: Wakeup QPs orphaned on wait list after flush
  IB/hfi1: Use aborts to trigger RC throttling
  IB/hfi1: Create inline to get extended headers
  IB/hfi1: Silence txreq allocation warnings
  IB/hfi1: Avoid hardlockup with flushlist_lock
  IB/hfi1: Correct tid qp rcd to match verbs context
  IB/hfi1: Close PSM sdma_progress sleep window
  IB/hfi1: Validate fault injection opcode user input
2019-06-21 14:47:09 -07:00
Linus Torvalds
c036f7dabc More NFS client fixes for Linux 5.2
Bugfixes:
 - SUNRPC: Fix a credential refcount leak
 - Revert "SUNRPC: Declare RPC timers as TIMER_DEFERRABLE"
 - SUNRPC: Fix xps refcount imbalance on the error path
 - NFS4: Only set creation opendata if O_CREAT
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Merge tag 'nfs-for-5.2-3' of git://git.linux-nfs.org/projects/anna/linux-nfs

Pull more NFS client fixes from Anna Schumaker:
 "These are mostly refcounting issues that people have found recently.
  The revert fixes a suspend recovery performance issue.

   - SUNRPC: Fix a credential refcount leak

   - Revert "SUNRPC: Declare RPC timers as TIMER_DEFERRABLE"

   - SUNRPC: Fix xps refcount imbalance on the error path

   - NFS4: Only set creation opendata if O_CREAT"

* tag 'nfs-for-5.2-3' of git://git.linux-nfs.org/projects/anna/linux-nfs:
  SUNRPC: Fix a credential refcount leak
  Revert "SUNRPC: Declare RPC timers as TIMER_DEFERRABLE"
  net :sunrpc :clnt :Fix xps refcount imbalance on the error path
  NFS4: Only set creation opendata if O_CREAT
2019-06-21 13:45:41 -07:00
Andy Lutomirski
ff17bbe0bb x86/vdso: Prevent segfaults due to hoisted vclock reads
GCC 5.5.0 sometimes cleverly hoists reads of the pvclock and/or hvclock
pages before the vclock mode checks.  This creates a path through
vclock_gettime() in which no vclock is enabled at all (due to disabled
TSC on old CPUs, for example) but the pvclock or hvclock page
nevertheless read.  This will segfault on bare metal.

This fixes commit 459e3a2153 ("gcc-9: properly declare the
{pv,hv}clock_page storage") in the sense that, before that commit, GCC
didn't seem to generate the offending code.  There was nothing wrong
with that commit per se, and -stable maintainers should backport this to
all supported kernels regardless of whether the offending commit was
present, since the same crash could just as easily be triggered by the
phase of the moon.

On GCC 9.1.1, this doesn't seem to affect the generated code at all, so
I'm not too concerned about performance regressions from this fix.

Cc: stable@vger.kernel.org
Cc: x86@kernel.org
Cc: Borislav Petkov <bp@alien8.de>
Reported-by: Duncan Roe <duncan_roe@optusnet.com.au>
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-06-21 13:31:52 -07:00
Trond Myklebust
19d55046cd SUNRPC: Fix a credential refcount leak
All callers of __rpc_clone_client() pass in a value for args->cred,
meaning that the credential gets assigned and referenced in
the call to rpc_new_client().

Reported-by: Ido Schimmel <idosch@idosch.org>
Fixes: 79caa5fad4 ("SUNRPC: Cache cred of process creating the rpc_client")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Tested-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2019-06-21 14:45:09 -04:00