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2019-05-10ALSA: hda/realtek - Avoid superfluous COEF EAPD setupsTakashi Iwai
Realtek codec driver applied the COEF setups to change the EAPD control to the default mode (i.e. control by EPAD verbs) at the init callback. It works, but this is too excessive at the same time, since it's called at each runtime PM resume. That is, the initialization should be done only once after the probe. One may think that moving this to the probe should be OK, but no -- there is a catch; when a system resumes from S4 (hibernation), we need to re-initialize this again manually, because it's out of regcache restoration. This patch addresses the issue by introducing alc_pre_init() function that performs such a task. This is called from each codec probe function, and it's called from the resume callback conditionally only from S4 resume. Reported-and-tested-by: Kailang Yang <kailang@realtek.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-05-10ALSA: hda/realtek - Fixup headphone noise via runtime suspendKailang Yang
Dell platform with ALC298. system enter to runtime suspend. Headphone had noise. Let Headset Mic not shutup will solve this issue. [ Fixed minor coding style issues by tiwai ] Signed-off-by: Kailang Yang <kailang@realtek.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-05-09Merge tag 'asoc-v5.2-5' of ↵Takashi Iwai
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus ASoC: Fixes for v5.2 A bunch of driver specific fixes that came in since the initial pull request for v5.2, mainly warning fixes for the newly added Sound Open Firmware code which people appeared to only start looking at after I'd sent the pull request.
2019-05-09ASoC: SOF: Fix unused variable warningsTakashi Iwai
The recent fix for the build fix caused a couple of unused variable compiler warnings when CONFIG_SND_SOC_SOF_NOCODEC isn't set: sound/soc/sof/core.c:263:6: warning: unused variable ‘ret’ [-Wunused-variable] sound/soc/sof/core.c:262:28: warning: unused variable ‘machine’ [-Wunused-variable] Fix them by adding another ifdef. Fixes: ce38a75089f7 ("ASoC: SOF: core: fix undefined nocodec reference") Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-05-08ALSA: line6: toneport: Fix broken usage of timer for delayed executionTakashi Iwai
The line6 toneport driver has code for some delayed initialization, and this hits the kernel Oops because mutex and other sleepable functions are used in the timer callback. Fix the abuse by a delayed work instead so that everything works gracefully. Reported-by: syzbot+a07d0142e74fdd595cfb@syzkaller.appspotmail.com Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-05-08ALSA: aica: Fix a long-time build breakageTakashi Iwai
The build of aica sound driver has been broken since the timer API conversion and some code rewrite. This patch fixes the breakage by using the common substream field, as well as a bit cleaning up wrt the timer handling in the code. Fixes: d522bb6a105f ("ALSA: sh: aica: Convert timers to use timer_setup()") Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-05-08ALSA: hda/realtek - Support low power consumption for ALC256Kailang Yang
Remove hp_pin = 0 return. Add the default pin 0x21 as headphone. Supported low power consumption, it must do depop procedure when headset jack was plugged or unplugged. So, alc256_init() and alc256_shutup() must run delay when headset jack was plugged or unplugged. If depop procedure not run with delay, it will have a chance to let power consumption raise high. [ NOTE: this is a quite quite similar change for ALC295 by commit d3ba58bb8959 ("ALSA: hda/realtek - Support low power consumption for ALC295"), but applied to ALC256 codec instead -- tiwai ] Fixes: 8983eb602af5 ("ALSA: hda/realtek - Move to ACT_INIT state") Signed-off-by: Kailang Yang <kailang@realtek.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-05-08Merge tag 'asoc-v5.2-2' of ↵Takashi Iwai
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus ASoC: Fixes for v5.2 A bunch of driver specific fixes that came in since the initial pull request for v5.2, mainly warning fixes for the newly added Sound Open Firmware code which people appeared to only start looking at after I'd sent the pull request.
2019-05-08ASoC: stm32: i2s: update pcm hardware constraintsOlivier Moysan
- Set period minimum size. Ensure at least 5ms period up to 48kHz/16 bits to prevent underrun/overrun. - Remove MDMA constraints on period maximum size and set period maximum to half the buffer maximum size. Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-05-08ASoC: codec: hdac_hdmi: no checking monitor in hw_paramsLibin Yang
Some userspace apps, like pulseaudio, may call open, hw_params, prepare to judge whether the pcm is ready or not. Current hdac_hdmi will return -ENODEV if monitor is not connected, which will cause the apps believe the pcm is not ready. Actually PCM for hdmi is ready, even the monitor is not connected. This patch removes the check of monitor presence in hw_params, just like what the legacy HD-Audio driver does. Signed-off-by: Libin Yang <libin.yang@intel.com> Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-05-08ASoC: mediatek: mt6358: save PGA for mixer controlTzung-Bi Shih
mt6358_amic_disable() resets PGA to 0. Save the gain settings from mixer control and restore them when using the microphone. Signed-off-by: Tzung-Bi Shih <tzungbi@google.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-05-08ASoC: mediatek: mt6358: save output volume for mixer controlsTzung-Bi Shih
Output volume settings from mixer controls would be lost. Imagine that "Headphone Volume" has set to -10dB via amixer: - in mtk_hp_enable() - hp_store_gain() saves the volume setting -10dB from regmap_read() to ana_gain[AUDIO_ANALOG_VOLUME_HPOUTL] - headset_volume_ramp() ramps up from -10dB to -10dB - in mtk_hp_disable() - headset_volume_ramp() ramps down from -10dB to -40dB Next time in mtk_hp_enable(), hp_store_gain() would save -40dB but not -10dB. As a result, headset_volume_ramp() would ramp from -10dB to -40dB (which is mute). Signed-off-by: Tzung-Bi Shih <tzungbi@google.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-05-08ASoC: mediatek: mt6358: initialize setting when ramping volumeTzung-Bi Shih
Mt6358 ramps up from the smallest volume (i.e. -10dB) to target dB when opening and ramps down from target dB to mute (i.e. -40dB) when closing. If target is equal to -10dB when opening, headset_volume_ramp() simply leaves current setting (which may not be -10dB) unchanged. Execute the loop at least once to initialize the setting to the starting point (i.e. from). Signed-off-by: Tzung-Bi Shih <tzungbi@google.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-05-08ASoC: SOF: core: fix undefined nocodec referencePierre-Louis Bossart
The existing code mistakenly uses IS_ENABLED in C code instead of as in conditional compilation, leading to the following error: ld: sound/soc/sof/core.o: in function `sof_machine_check': sound/soc/sof/core.c:279: undefined reference to `sof_nocodec_setup' Fix by using #if !IS_ENABLED() Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-05-08ASoC: SOF: xtensa: fix undefined referencesPierre-Louis Bossart
The SND_SOC_INTEL_COMMON Kconfig was removed months ago from SOF Kconfig files but is still selected instead of the correct SND_SOC_SOF_INTEL_COMMON kconfig which does select xtensa stuff, leading to the following errors. ld: sound/soc/sof/sof-acpi-dev.o:(.rodata+0x120): undefined reference to `sof_xtensa_arch_ops' ld: sound/soc/sof/sof-acpi-dev.o:(.rodata+0x180): undefined reference to `sof_xtensa_arch_ops' ld: sound/soc/sof/sof-acpi-dev.o:(.rodata+0x1e0): undefined reference to `sof_xtensa_arch_ops' Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-05-08ASoC: SOF: Propagate sof_get_ctrl_copy_params() error properlyTakashi Iwai
This fixes a compile warning below by properly handling the error code from sof_get_ctrl_copy_params(): include/linux/kernel.h:843:43: warning: 'sparams.pl_size' may be used uninitialized in this function [-Wmaybe-uninitialized] sound/soc/sof/ipc.c:639:34: note: 'sparams.pl_size' was declared here The function returns an error before setting sparams.pl_size, so it'd assign an uninitialized value at a later point. Fixes: 53e0c72d98ba ("ASoC: SOF: Add support for IPC IO between DSP and Host") Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-05-08ALSA: hdea/realtek - Headset fixup for System76 Gazelle (gaze14)Jeremy Soller
On the System76 Gazelle (gaze14), there is a headset microphone input attached to 0x1a that does not have a jack detect. In order to get it working, the pin configuration needs to be set correctly, and the ALC269_FIXUP_HEADSET_MODE_NO_HP_MIC fixup needs to be applied. This is identical to the patch already applied for the System76 Darter Pro (darp5). Signed-off-by: Jeremy Soller <jeremy@system76.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-05-07ALSA: hda/intel: add CometLake PCI IDsPierre-Louis Bossart
Add PCI IDs for LP and H skews. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-05-07ALSA: hda/realtek - Support low power consumption for ALC295Kailang Yang
Enter to close more power control widgets at suspend. Remove hp_pin check. Add the default pin 0x21 as headphone. Supported low power consumption, it must do depop procedure when headset jack was plugged or unplugged. So, alc225_init() and alc225_shutup() must run delay when headset jack was plugged or unplugged. If depop procedure not run with delay, it will have a chance to let power consumption raise high. [ A few compile fixes by tiwai ] Fixes: 8983eb602af5 ("ALSA: hda/realtek - Move to ACT_INIT state") Signed-off-by: Kailang Yang <kailang@realtek.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-05-07ASoC: rockchip: Fix an uninitialized variable compile warningTakashi Iwai
Paper over a trivial case leading to an uninitialized variable compile warning: sound/soc/rockchip/rockchip_pdm.c:179:3: warning: ‘clk_out’ may be used uninitialized in this function [-Wmaybe-uninitialized] Fixes: 624e8e00acaf ("ASoC: rockchip: pdm: fixup pdm fractional div") Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-05-07ASoC: SOF: Fix a compile warning with CONFIG_PCI=nTakashi Iwai
A trivial fix for the randconfig build error: sound/soc/sof/ops.c:20:6: warning: ‘ret’ is used uninitialized in this function [-Wuninitialized] Fixes: d1d95fcb63e3 ("ASoC: SOF: Add DSP HW abstraction operations") Signed-off-by: Takashi Iwai <tiwai@suse.de> Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-05-07ASoC: da7219: Fix a compile warning at CONFIG_COMMON_CLK=nTakashi Iwai
A trivial fix for the randconfig build error: sound/soc/codecs/da7219.c:2366:6: warning: unused variable ‘i’ [-Wunused-variable] Fixes: d90ba6c8b53e ("ASoC: da7219: Expose BCLK and WCLK control through CCF") Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-05-07ASoC: sound/soc/sof/: fix kconfig dependency warningRandy Dunlap
Fix kconfig warning for unmet dependency for IOSF_MBI when PCI is not set/enabled. Fixes this warning: WARNING: unmet direct dependencies detected for IOSF_MBI Depends on [n]: PCI [=n] Selected by [y]: - SND_SOC_SOF_ACPI [=y] && SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && SND_SOC_SOF_TOPLEVEL [=y] && (ACPI [=y] || COMPILE_TEST [=n]) && X86 [=y] Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Liam Girdwood <lgirdwood@gmail.com> Cc: Mark Brown <broonie@kernel.org> Cc: alsa-devel@alsa-project.org Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-05-06ASoC: stm32: spdifrx: change trace level on iec controlOlivier Moysan
Change trace level to debug to avoid spurious messages. Return quietly when accessing iec958 control, while no S/PDIF signal is available. Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-05-06ASoC: stm32: spdifrx: update pcm hardware constraintsOlivier Moysan
- Set period minimum size. Ensure at least 5ms period up to 48kHz/16 bits to prevent underrun/overrun. - Remove MDMA constraints on period maximum size and set period maximum to half the buffer maximum size. Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-05-06ASoC: max98090: Fix restore of DAPM MuxesJon Hunter
The max98090 driver defines 3 DAPM muxes; one for the right line output (LINMOD Mux), one for the left headphone mixer source (MIXHPLSEL Mux) and one for the right headphone mixer source (MIXHPRSEL Mux). The same bit is used for the mux as well as the DAPM enable, and although the mux can be correctly configured, after playback has completed, the mux will be reset during the disable phase. This is preventing the state of these muxes from being saved and restored correctly on system reboot. Fix this by marking these muxes as SND_SOC_NOPM. Note this has been verified this on the Tegra124 Nyan Big which features the MAX98090 codec. Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Mark Brown <broonie@kernel.org> Cc: stable@vger.kernel.org
2019-05-06ASoC: RT5677-SPI: Disable 16Bit SPI TransfersCurtis Malainey
The current algorithm allows 3 types of transfers, 16bit, 32bit and burst. According to Realtek, 16bit transfers have a special restriction in that it is restricted to the memory region of 0x18020000 ~ 0x18021000. This region is the memory location of the I2C registers. The current algorithm does not uphold this restriction and therefore fails to complete writes. Since this has been broken for some time it likely no one is using it. Better to simply disable the 16 bit writes. This will allow users to properly load firmware over SPI without data corruption. Signed-off-by: Curtis Malainey <cujomalainey@chromium.org> Reviewed-by: Ben Zhang <benzh@chromium.org> Signed-off-by: Mark Brown <broonie@kernel.org> Cc: stable@vger.kernel.org
2019-05-06ALSA: hda/hdmi - Consider eld_valid when reporting jack eventHui Wang
On the machines with AMD GPU or Nvidia GPU, we often meet this issue: after s3, there are 4 HDMI/DP audio devices in the gnome-sound-setting even there is no any monitors plugged. When this problem happens, we check the /proc/asound/cardX/eld#N.M, we will find the monitor_present=1, eld_valid=0. The root cause is BIOS or GPU driver makes the PRESENCE valid even no monitor plugged, and of course the driver will not get the valid eld_data subsequently. In this situation, we should not report the jack_plugged event, to do so, let us change the function hdmi_present_sense_via_verbs(). In this function, it reads the pin_sense via snd_hda_pin_sense(), after calling this function, the jack_dirty is 0, and before exiting via_verbs(), we change the shadow pin_sense according to both monitor_present and eld_valid, then in the snd_hda_jack_report_sync(), since the jack_dirty is still 0, it will report jack event according to this modified shadow pin_sense. After this change, the driver will not report Jack_is_plugged event through hdmi_present_sense_via_verbs() if monitor_present is 1 and eld_valid is 0. Signed-off-by: Hui Wang <hui.wang@canonical.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-05-06ALSA: hda/hdmi - Read the pin sense from register when repollingHui Wang
The driver will check the monitor presence when resuming from suspend, starting poll or interrupt triggers. In these 3 situations, the jack_dirty will be set to 1 first, then the hda_jack.c reads the pin_sense from register, after reading the register, the jack_dirty will be set to 0. But hdmi_repoll_work() is enabled in these 3 situations, It will read the pin_sense a couple of times subsequently, since the jack_dirty is 0 now, It does not read the register anymore, instead it uses the shadow pin_sense which is read at the first time. It is meaningless to check the shadow pin_sense a couple of times, we need to read the register to check the real plugging state, so we set the jack_dirty to 1 in the hdmi_repoll_work(). Signed-off-by: Hui Wang <hui.wang@canonical.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-05-06Merge tag 'asoc-v5.2' of ↵Takashi Iwai
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus ASoC: Updates for v5.2 This is a pretty huge set of changes, it's been a pretty active release all round but the big thing with this release is the Sound Open Firmware changes from Intel, providing another DSP framework for use with the DSPs in their SoCs. This one works with the firmware of the same name which is free software (unlike the previous DSP firmwares and framework) and there has been some interest in adoption by other systems already so hopefully we will see adoption by other vendors in the future. Other highlights include: - Support for MCLK/sample rate ratio setting in the generic cards. - Support for pin switches in the generic cards. - A big set of improvements to the TLV320AIC32x4 drivers from Annaliese McDermond. - New drivers for Freescale audio mixers, several Intel machines, several Mediatek machines, Meson G12A, Sound Open Firmware and Spreadtrum compressed audio and DMA devices.
2019-05-06Merge branch 'asoc-5.2' into asoc-nextMark Brown
2019-05-06Merge branch 'asoc-5.1' into asoc-linusMark Brown
2019-05-06ASoC: sprd: Add reserved DMA memory supportBaolin Wang
For Spreadtrum audio platform driver, it need allocate a larger DMA buffer dynamically to copy audio data between userspace and kernel space, but that will increase the risk of memory allocation failure especially the system is under heavy load situation. To make sure the audio can work in this scenario, we usually reserve one region of memory to be used as a shared pool of DMA buffers for the platform component. So add of_reserved_mem_device_init_by_idx() function to initialize the shared pool of DMA buffers to be used by the platform component. Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-05-06ALSA: synth: emux: soundfont.c: divide by zero in calc_gus_envelope_time()Dan Carpenter
This function is called from load_guspatch() and the rate is specified by the user. If they accidentally selected zero then it would crash the kernel. I've just changed the zero to a one. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-05-06Merge branch 'for-linus' into for-nextTakashi Iwai
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-05-05Linux 5.1v5.1Linus Torvalds
2019-05-05Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Ingo Molnar: "I'd like to apologize for this very late pull request: I was dithering through the week whether to send the fixes, and then yesterday Jiri's crash fix for a regression introduced in this cycle clearly marked perf/urgent as 'must merge now'. Most of the commits are tooling fixes, plus there's three kernel fixes via four commits: - race fix in the Intel PEBS code - fix an AUX bug and roll back a previous attempt - fix AMD family 17h generic HW cache-event perf counters The largest diffstat contribution comes from the AMD fix - a new event table is introduced, which is a fairly low risk change but has a large linecount" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86/intel: Fix race in intel_pmu_disable_event() perf/x86/intel/pt: Remove software double buffering PMU capability perf/ring_buffer: Fix AUX software double buffering perf tools: Remove needless asm/unistd.h include fixing build in some places tools arch uapi: Copy missing unistd.h headers for arc, hexagon and riscv tools build: Add -ldl to the disassembler-four-args feature test perf cs-etm: Always allocate memory for cs_etm_queue::prev_packet perf cs-etm: Don't check cs_etm_queue::prev_packet validity perf report: Report OOM in status line in the GTK UI perf bench numa: Add define for RUSAGE_THREAD if not present tools lib traceevent: Change tag string for error perf annotate: Fix build on 32 bit for BPF annotation tools uapi x86: Sync vmx.h with the kernel perf bpf: Return value with unlocking in perf_env__find_btf() MAINTAINERS: Include vendor specific files under arch/*/events/* perf/x86/amd: Update generic hardware cache events for Family 17h
2019-05-05Merge branch 'sched-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler fix from Ingo Molnar: "Fix a kobject memory leak in the cpufreq code" * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/cpufreq: Fix kobject memleak
2019-05-05Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fix from Ingo Molnar: "Disable function tracing during early SME setup to fix a boot crash on SME-enabled kernels running distro kernels (some of which have function tracing enabled)" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mm/mem_encrypt: Disable all instrumentation for early SME setup
2019-05-05Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds
Pull vfs fixes from Al Viro: - a couple of ->i_link use-after-free fixes - regression fix for wrong errno on absent device name in mount(2) (this cycle stuff) - ancient UFS braino in large GID handling on Solaris UFS images (bogus cut'n'paste from large UID handling; wrong field checked to decide whether we should look at old (16bit) or new (32bit) field) * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: ufs: fix braino in ufs_get_inode_gid() for solaris UFS flavour Abort file_remove_privs() for non-reg. files [fix] get rid of checking for absent device name in vfs_get_tree() apparmorfs: fix use-after-free on symlink traversal securityfs: fix use-after-free on symlink traversal
2019-05-05perf/x86/intel: Fix race in intel_pmu_disable_event()Jiri Olsa
New race in x86_pmu_stop() was introduced by replacing the atomic __test_and_clear_bit() of cpuc->active_mask by separate test_bit() and __clear_bit() calls in the following commit: 3966c3feca3f ("x86/perf/amd: Remove need to check "running" bit in NMI handler") The race causes panic for PEBS events with enabled callchains: BUG: unable to handle kernel NULL pointer dereference at 0000000000000000 ... RIP: 0010:perf_prepare_sample+0x8c/0x530 Call Trace: <NMI> perf_event_output_forward+0x2a/0x80 __perf_event_overflow+0x51/0xe0 handle_pmi_common+0x19e/0x240 intel_pmu_handle_irq+0xad/0x170 perf_event_nmi_handler+0x2e/0x50 nmi_handle+0x69/0x110 default_do_nmi+0x3e/0x100 do_nmi+0x11a/0x180 end_repeat_nmi+0x16/0x1a RIP: 0010:native_write_msr+0x6/0x20 ... </NMI> intel_pmu_disable_event+0x98/0xf0 x86_pmu_stop+0x6e/0xb0 x86_pmu_del+0x46/0x140 event_sched_out.isra.97+0x7e/0x160 ... The event is configured to make samples from PEBS drain code, but when it's disabled, we'll go through NMI path instead, where data->callchain will not get allocated and we'll crash: x86_pmu_stop test_bit(hwc->idx, cpuc->active_mask) intel_pmu_disable_event(event) { ... intel_pmu_pebs_disable(event); ... EVENT OVERFLOW -> <NMI> intel_pmu_handle_irq handle_pmi_common TEST PASSES -> test_bit(bit, cpuc->active_mask)) perf_event_overflow perf_prepare_sample { ... if (!(sample_type & __PERF_SAMPLE_CALLCHAIN_EARLY)) data->callchain = perf_callchain(event, regs); CRASH -> size += data->callchain->nr; } </NMI> ... x86_pmu_disable_event(event) } __clear_bit(hwc->idx, cpuc->active_mask); Fixing this by disabling the event itself before setting off the PEBS bit. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: David Arcari <darcari@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Lendacky Thomas <Thomas.Lendacky@amd.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Fixes: 3966c3feca3f ("x86/perf/amd: Remove need to check "running" bit in NMI handler") Link: http://lkml.kernel.org/r/20190504151556.31031-1-jolsa@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-05-04Merge tag 'powerpc-5.1-7' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fix from Michael Ellerman: "One regression fix. Changes we merged to STRICT_KERNEL_RWX on 32-bit were causing crashes under load on some machines depending on memory layout. Thanks to Christophe Leroy" * tag 'powerpc-5.1-7' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/32s: Fix BATs setting with CONFIG_STRICT_KERNEL_RWX
2019-05-03Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull KVM fixes from Paolo Bonzini: - PPC and ARM bugfixes from submaintainers - Fix old Windows versions on AMD (recent regression) - Fix old Linux versions on processors without EPT - Fixes for LAPIC timer optimizations * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (21 commits) KVM: nVMX: Fix size checks in vmx_set_nested_state KVM: selftests: make hyperv_cpuid test pass on AMD KVM: lapic: Check for in-kernel LAPIC before deferencing apic pointer KVM: fix KVM_CLEAR_DIRTY_LOG for memory slots of unaligned size x86/kvm/mmu: reset MMU context when 32-bit guest switches PAE KVM: x86: Whitelist port 0x7e for pre-incrementing %rip Documentation: kvm: fix dirty log ioctl arch lists KVM: VMX: Move RSB stuffing to before the first RET after VM-Exit KVM: arm/arm64: Don't emulate virtual timers on userspace ioctls kvm: arm: Skip stage2 huge mappings for unaligned ipa backed by THP KVM: arm/arm64: Ensure vcpu target is unset on reset failure KVM: lapic: Convert guest TSC to host time domain if necessary KVM: lapic: Allow user to disable adaptive tuning of timer advancement KVM: lapic: Track lapic timer advance per vCPU KVM: lapic: Disable timer advancement if adaptive tuning goes haywire x86: kvm: hyper-v: deal with buggy TLB flush requests from WS2012 KVM: x86: Consider LAPIC TSC-Deadline timer expired if deadline too short KVM: PPC: Book3S: Protect memslots while validating user address KVM: PPC: Book3S HV: Perserve PSSCR FAKE_SUSPEND bit on guest exit KVM: arm/arm64: vgic-v3: Retire pending interrupts on disabling LPIs ...
2019-05-03Merge branch 'i2c/for-current-fixed' of ↵Linus Torvalds
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c fixes from Wolfram Sang: "I2C driver bugfixes and a MAINTAINERS update for you" * 'i2c/for-current-fixed' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: Prevent runtime suspend of adapter when Host Notify is required i2c: synquacer: fix enumeration of slave devices MAINTAINERS: friendly takeover of i2c-gpio driver i2c: designware: ratelimit 'transfer when suspended' errors i2c: imx: correct the method of getting private data in notifier_call
2019-05-03Merge tag 'drm-fixes-2019-05-03' of git://anongit.freedesktop.org/drm/drmLinus Torvalds
Pull drm fix from Dave Airlie: "Just a single qxl revert" * tag 'drm-fixes-2019-05-03' of git://anongit.freedesktop.org/drm/drm: Revert "drm/qxl: drop prime import/export callbacks"
2019-05-03Merge tag 'clk-fixes-for-linus' of ↵Linus Torvalds
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk fixes from Stephen Boyd: "Two fixes for the NKMP clks on Allwinner SoCs, a locking fix for clkdev where we forgot to hold a lock while iterating a list that can change, and finally a build fix that adds some stubs for clk APIs that are used by devfreq drivers on platforms without the clk APIs" * tag 'clk-fixes-for-linus' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/clk/linux: clk: Add missing stubs for a few functions clkdev: Hold clocks_mutex while iterating clocks list clk: sunxi-ng: nkmp: Explain why zero width check is needed clk: sunxi-ng: nkmp: Avoid GENMASK(-1, 0)
2019-05-03Merge tag 'sound-5.1' of ↵Linus Torvalds
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "A few stable fixes at this round. The USB Line6 audio fixes are a bit large, but they are rather trivial and pretty much device-specific, so should be safe to apply at this late stage. Ditto for other HD-audio quirks" * tag 'sound-5.1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: hda/realtek - Apply the fixup for ASUS Q325UAR ALSA: line6: use dynamic buffers ALSA: hda/realtek - Fixed Dell AIO speaker noise ALSA: hda/realtek - Add new Dell platform for headset mode
2019-05-03MAINTAINERS: update git tree for sound entriesRoss Zwisler
Several sound related entries in MAINTAINERS refer to the old git tree at "git://git.alsa-project.org/alsa-kernel.git". This is no longer used for development, and Takashi Iwai's kernel.org tree is used instead. Signed-off-by: Ross Zwisler <zwisler@google.com> Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-05-03perf/x86/intel/pt: Remove software double buffering PMU capabilityAlexander Shishkin
Now that all AUX allocations are high-order by default, the software double buffering PMU capability doesn't make sense any more, get rid of it. In case some PMUs choose to opt out, we can re-introduce it. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Cc: adrian.hunter@intel.com Link: http://lkml.kernel.org/r/20190503085536.24119-3-alexander.shishkin@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-05-03perf/ring_buffer: Fix AUX software double bufferingAlexander Shishkin
This recent commit: 5768402fd9c6e87 ("perf/ring_buffer: Use high order allocations for AUX buffers optimistically") overlooked the fact that the previous one page granularity of the AUX buffer provided an implicit double buffering capability to the PMU driver, which went away when the entire buffer became one high-order page. Always make the full-trace mode AUX allocation at least two-part to preserve the previous behavior and allow the implicit double buffering to continue. Reported-by: Ammy Yi <ammy.yi@intel.com> Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Cc: adrian.hunter@intel.com Fixes: 5768402fd9c6e87 ("perf/ring_buffer: Use high order allocations for AUX buffers optimistically") Link: http://lkml.kernel.org/r/20190503085536.24119-2-alexander.shishkin@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>