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2020-08-05ALSA: hda: Add dma stop delay variableMohan Kumar
A variable dma_stop_delay is added as a new member in hdac_bus structure to avoid memory decode error incase DMA RUN bit is not disabled in the given timeout from snd_hdac_stream_sync function and followed by stream reset which results in memory decode error between reset set and clear operation. Signed-off-by: Mohan Kumar <mkumard@nvidia.com> Link: https://lore.kernel.org/r/20200805095221.5476-3-mkumard@nvidia.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-06-22Merge tag 'asoc-fix-v5.8-rc2' of ↵Takashi Iwai
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus ASoC: Fixes for v5.8 This is a collection of mostly small fixes, mostly fixing fallout from some of the DPCM changes that went in last time around which shook out some issues on i.MX and Qualcomm platforms. The addition of a managed version of snd_soc_register_dai() is to fix resource leaks. There's also a few new device IDs for x86 systems.
2020-06-17ASoC: Intel: SOF: merge COMETLAKE_LP and COMETLAKE_HPierre-Louis Bossart
We already have two configurations for CometLake, and a third one coming. On other platforms, we used a single Kconfig option, so we should follow the same trend by merging the two cases in a backwards compatible way. The backwards compatibility is handled by overloading the COMETLAKE_LP kconfig as COMETLAKE. In practice we've never seen a case where COMETLAKE_H is not selected along with COMETLAKE_LP, so keeping one of the two is enough. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com> Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Link: https://lore.kernel.org/r/20200617164755.18104-2-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-06-01Merge tag 'asoc-v5.8' of ↵Takashi Iwai
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus ASoC: Updates for v5.8 This has been another very active release with a bunch of new drivers, lots of fixes everywhere and continued core improvements from Morimoto-san: - Lots of core cleanups and refactorings from Morimoto-san, factoring out common operations and making the card abstraction more solid. - Continued work on cleaning up and improving the Intel drivers, along with some new platform support for them. - Fixes to make the Marvell SSPA driver work upstream. - Support for AMD Renoir ACP, Dialog DA7212, Freescale EASRC and i.MX8M, Intel Elkhard Lake, Maxim MAX98390, Nuvoton NAU8812 and NAU8814 and Realtek RT1016.
2020-06-01Merge remote-tracking branch 'asoc/for-5.8' into asoc-linusMark Brown
2020-05-16ALSA: hda: Unexport some local helper functionsTakashi Iwai
snd_hdac_bus_queue_event() and snd_hdac_bus_exec_verb() are used only internally in HD-audio core. Let's drop the exports and move the declarations into local.h. Link: https://lore.kernel.org/r/20200516062854.22141-3-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-05-16ALSA: hda: Fix potential race in unsol event handlerTakashi Iwai
The unsol event handling code has a loop retrieving the read/write indices and the arrays without locking while the append to the array may happen concurrently. This may lead to some inconsistency. Although there hasn't been any proof of this bad results, it's still safer to protect the racy accesses. This patch adds the spinlock protection around the unsol handling loop for addressing it. Here we take bus->reg_lock as the writer side snd_hdac_bus_queue_event() is also protected by that lock. Link: https://lore.kernel.org/r/20200516062556.30951-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-05-07ALSA: hda: Allow SST driver on SKL and KBL platforms with DMICCezary Rojewski
Update intel-dspcfg with FLAG_SST_ONLY_IF_DMIC option and use it for Skylake and Kabylake platforms when DMIC is present. Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com> Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20200506203951.6369-1-cezary.rojewski@intel.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-05-05ALSA: hda: Use dev_to_hdac_dev macroKai-Heng Feng
Use dev_to_hdac_dev() instead of container_of(). No functional change intended. Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Link: https://lore.kernel.org/r/20200505030357.28004-1-kai.heng.feng@canonical.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-05-04ALSA: hda: add member to store ratio for stripe controlSameer Pujar
Stripe control programming is governed by following formula, which is referenced from the HD Audio specification(Revision 1.0a). { ((num_channels * bits_per_sample) / number of SDOs) >= 8 } Currently above is implemented in snd_hdac_get_stream_stripe_ctl(). This patch introduces a structure member to store the default factor of '8'. If any HW wants to use a different value, this member can be easily updated. Signed-off-by: Sameer Pujar <spujar@nvidia.com> Link: https://lore.kernel.org/r/1588580176-2801-3-git-send-email-spujar@nvidia.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-05-01ASoC: SOF/Intel: clarify SPDX license with GPL-2.0-onlyPierre-Louis Bossart
Remove the ambiguity with GPL-2.0 and use an explicit GPL-2.0-only tag. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com> Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com> Link: https://lore.kernel.org/r/20200501145850.15178-1-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-04-24Merge branch 'topic/nhlt' into for-nextTakashi Iwai
Merge NHLT init cleanup. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-04-24ALSA: hda: Refactor Intel NHLT initCezary Rojewski
NHLT fetch based on _DSM prevents ACPI table override mechanism from being utilized. Make use of acpi_get_table to enable it and get rid of redundant code. In consequence, NHLT can be overridden just like any other ACPI table, e.g.: DSDT or SSDT. Change has been verified on all Intel AVS architecture platforms, RVP and production laptops both. Change possible due to addition of NHLT signature to the list of standard ACPI tables: https://patchwork.kernel.org/patch/11463235/ Override helps not only with debug purposes but also allows user for table adjustment when one found on their production hardware is invalid. Shared official NHLT spec is now available to community at: https://01.org/blogs/intel-smart-sound-technology-audio-dsp NHLT support for iASL is still ongoing subject but should be available in nearest future. Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com> Link: https://lore.kernel.org/r/20200423160310.28019-1-cezary.rojewski@intel.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-04-13ALSA: hda: Allow setting preallocation again for x86Takashi Iwai
The commit c31427d0d21e ("ALSA: hda: No preallocation on x86 platforms") changed CONFIG_SND_HDA_PREALLOC_SIZE setup and its default to zero for x86, as the preallocation should work almost all cases. However, this expectation was too naive; some applications try to allocate as the max buffer size as possible, and it leads to the memory exhaustion. More badly, the commit changed the kconfig no longer adjustable for x86, so you can't fix it statically (although it can be still adjusted via procfs). So, practically seen, it's more recommended to set a reasonable limit for x86, too. This patch follows to that experience, and changes the default to 2048 and allow the kconfig adjustable again. Fixes: c31427d0d21e ("ALSA: hda: No preallocation on x86 platforms") Cc: <stable@vger.kernel.org> BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=207223 Link: https://lore.kernel.org/r/20200413201919.24241-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-04-11ALSA: hda: add autodetection for SoundWirePierre-Louis Bossart
When an ACPI companion device is present and the SoundWire link mask information is available, use SoundWire instead of legacy HDA or Skylake drivers. The SOF driver is selected when SoundWire or DMIC are detected. There is no precedence at this level. In the SOF driver proper, SoundWire will be handled first since it is mutually exclusive with HDaudio. Known devices with an existing DMI quirk bypass this detection to avoid any dependency on ACPI/DSDT tables. Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com> Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com> Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20200409190251.16569-1-pierre-louis.bossart@linux.intel.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-03-13ALSA: hda: Use scnprintf() for string truncationTakashi Iwai
snd_hdac_codec_modalias() truncates the string to the given size and returns its size, but it returned a wrong size from snprintf(). snprintf() returns the would-be-output size, not the actual size. Use scnprintf() instead to return the correct size. Link: https://lore.kernel.org/r/20200313130241.8970-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-02-18Merge tag 'asoc-fix-v5.6-rc2' of ↵Takashi Iwai
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus ASoC: Fixes for v5.6 A few fixes sent in since the merge window, none of them with global impact but all important for the users they affect.
2020-02-18ALSA: hda: Use scnprintf() for printing texts for sysfs/procfsTakashi Iwai
Some code in HD-audio driver calls snprintf() in a loop and still expects that the return value were actually written size, while snprintf() returns the expected would-be length instead. When the given buffer limit were small, this leads to a buffer overflow. Use scnprintf() for addressing those issues. It returns the actually written size unlike snprintf(). Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20200218091409.27162-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-02-10ALSA: hda: do not override bus codec_mask in link_get()Kai Vehmanen
snd_hdac_ext_bus_link_get() does not work correctly in case there are multiple codecs on the bus. It unconditionally resets the bus->codec_mask value. As per documentation in hdaudio.h and existing use in client code, this field should be used to store bit flag of detected codecs on the bus. By overwriting value of the codec_mask, information on all detected codecs is lost. No current user of hdac is impacted, but use of bus->codec_mask is planned in future patches for SOF. Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20200206200223.7715-1-kai.vehmanen@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-01-28ALSA: hda: Reset stream if DMA RUN bit not clearedMohan Kumar
Tegra HDA has FIFO size which can hold upto 10 audio frames to support DVFS. When HDA DMA RUN bit is set to 0 to stop the stream, the DMA RUN bit will be cleared to 0 only after transferring all the remaining audio frames queued up in the fifo. This is not in sync with spec which states the controller will stop transmitting(output) in the beginning of the next frame for the relevant stream. The above behavior with Tegra HDA was resulting in machine check error during the system suspend flow with active audio playback with below kernel error logs. [ 33.524583] mc-err: [mcerr] (hda) csr_hdar: EMEM address decode error [ 33.531088] mc-err: [mcerr] status = 0x20000015; addr = 0x00000000 [ 33.537431] mc-err: [mcerr] secure: no, access-type: read, SMMU fault: none This was due to the fifo has more than one audio frame when the DMA RUN bit is set to 0 during system suspend flow and the timeout handling in snd_hdac_stream_sync() was not designed to handle this scenario. So the DMA will continue running even after timeout hit until all remaining audio frames in the fifo are transferred, but the suspend flow will try to reset the controller and turn off the hda clocks without the knowledge of the DMA is still running and could result in mc-err. The above issue can be resolved by doing stream reset with the help of snd_hdac_stream_reset() which would ensure the DMA RUN bit is cleared if the timeout was hit in snd_hdac_stream_sync(). Signed-off-by: Mohan Kumar <mkumard@nvidia.com> Link: https://lore.kernel.org/r/20200128051508.26064-1-mkumard@nvidia.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-21ALSA: hda: No preallocation on x86 platformsTakashi Iwai
Like many other drivers, HD-audio drivers also do PCM buffer preallocation to assure the buffer pages allocated at the early boot stage. This step is useful for platforms that may fail to allocate the PCM hardware buffers -- which is mostly for either large continuous pages or with the specific DMA mask (like emu10k1). OTOH, when a buffer is allocated as SG-buffer and the DMA mask is either 32 or 64 bits, the allocation almost never fails unless it hits the real OOM situation. In such a case, we don't need the preallocation inevitably unlike the cases above. That said, we may drop the preallocation for HD-audio that does allocate via SG-buffers, and the patch achieves it. However, there is one caveat: the buffer allocation behavior depends on CONFIG_SND_DMA_SGBUF, and it falls back to the continuous pages when it's not set. And, currently this SG buffer allocation is enabled only on x86 platforms. So, covering those fall-outs, the patch adjusts CONFIG_SND_HDA_PREALLOC_SIZE depending on the condition, and keeps the old behavior as-is for non-x86 platforms. On x86, the kconfig item is no longer adjustable but always set to zero for disabling the preallocation. You can still enable the preallocation via procfs interface at any time later, too. Link: https://lore.kernel.org/r/20200120124423.11862-2-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-14ALSA: hda: Update kernel-doc function parameter descriptionsKeyon Jie
Make W=1 throws a lot of warnings, with multiple misalignments between function params and their descriptions. Signed-off-by: Keyon Jie <yang.jie@linux.intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20200113205638.27338-1-pierre-louis.bossart@linux.intel.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-13ALSA: hda: Manage concurrent reg access more properlyTakashi Iwai
In the commit 8e85def5723e ("ALSA: hda: enable regmap internal locking"), we re-enabled the regmap lock due to the reported regression that showed the possible concurrent accesses. It was a temporary workaround, and there are still a few opened races even after the revert. In this patch, we cover those still opened windows with a proper mutex lock and disable the regmap internal lock again. First off, the patch introduces a new snd_hdac_device.regmap_lock mutex that is applied for each snd_hdac_regmap_*() call, including read, write and update helpers. The mutex is applied carefully so that it won't block the self-power-up procedure in the helper function. Also, this assures the protection for the accesses without regmap, too. The snd_hdac_regmap_update_raw() is refactored to use the standard regmap_update_bits_check() function instead of the open-code. The non-regmap case is still open-coded but it's an easy part. The all read and write operations are in the single mutex protection, so it's now race-free. In addition, a couple of new helper functions are added: snd_hdac_regmap_update_raw_once() and snd_hdac_regmap_sync(). Both are called from HD-audio legacy driver. The former is to initialize the given verb bits but only once when it's not initialized yet. Due to this condition, the function invokes regcache_cache_only(), and it's now performed inside the regmap_lock (formerly it was racy) too. The latter function is for simply invoking regcache_sync() inside the regmap_lock, which is called from the codec resume call path. Along with that, the HD-audio codec driver code is slightly modified / simplified to adapt those new functions. And finally, snd_hdac_regmap_read_raw(), *_write_raw(), etc are rewritten with the helper macro. It's just for simplification because the code logic is identical among all those functions. Tested-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Link: https://lore.kernel.org/r/20200109090104.26073-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-11Merge branch 'for-linus' into for-nextTakashi Iwai
Sync 5.5-devel branch once again for applying the HD-audio fixes. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-08ALSA: hda: enable regmap internal lockingKai Vehmanen
This reverts commit 42ec336f1f9d ("ALSA: hda: Disable regmap internal locking"). Without regmap locking, there is a race between snd_hda_codec_amp_init() and PM callbacks issuing regcache_sync(). This was caught by following kernel warning trace: <4> [358.080081] WARNING: CPU: 2 PID: 4157 at drivers/base/regmap/regcache.c:498 regcache_cache_only+0xf5/0x130 [...] <4> [358.080148] Call Trace: <4> [358.080158] snd_hda_codec_amp_init+0x4e/0x100 [snd_hda_codec] <4> [358.080169] snd_hda_codec_amp_init_stereo+0x40/0x80 [snd_hda_codec] Suggested-by: Takashi Iwai <tiwai@suse.de> BugLink: https://gitlab.freedesktop.org/drm/intel/issues/592 Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Link: https://lore.kernel.org/r/20200108180856.5194-1-kai.vehmanen@linux.intel.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-08ALSA: hda: Fix a typo in commentsTakashi Iwai
Link: https://lore.kernel.org/r/20200108153430.31456-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-05ALSA: hda: More constificationsTakashi Iwai
Apply const prefix to the remaining possible places: the string tables, the rate tables, the verb tables, the index tables, etc. Just for minor optimization and no functional changes. Link: https://lore.kernel.org/r/20200105144823.29547-10-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-12-18Merge branch 'for-linus' into for-nextTakashi Iwai
Taking the 5.5 devel branch back into the main devel branch. A USB-audio fix needs to be adjusted to adapt the changes that have been formerly applied for stop_sync. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-12-14ALSA: hda: Comment about snd_hdac_bus_update_rirb() and spinlockTakashi Iwai
The call of snd_hdac_bus_update_rirb() needs the bus->reg_lock spinlock protection for concurrency. Comment about it more explicitly. Link: https://lore.kernel.org/r/20191213163005.19116-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-12-14ALSA: hda: Fix regression by strip mask fixTakashi Iwai
The commit e38e486d66e2 ("ALSA: hda: Modify stream stripe mask only when needed") tried to address the regression by the unconditional application of the stripe mask, but this caused yet another regression for the previously working devices. Namely, the patch clears the azx_dev->stripe flag at snd_hdac_stream_clear(), but this may be called multiple times before restarting the stream, so this ended up with clearance of the flag for the whole time. This patch fixes the regression by moving the azx_dev->stripe flag clearance at the counter-part, the close callback of HDMI codec driver instead. Fixes: e38e486d66e2 ("ALSA: hda: Modify stream stripe mask only when needed") BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=205855 BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=204477 Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20191214175217.31852-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-12-13ALSA: hda: Unify get_response handlingTakashi Iwai
Now most of the get_response handling became quite similar between HDA-core and legacy drivers, and the only differences are: - the handling of extra-long polling delay for some codecs - the debug message for the stalled communication and both are worth to share in the common code. This patch unifies the code into snd_hdac_bus_get_response(), and use this from the legacy get_response callback. It results in a good amount of code reduction in the end. Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Link: https://lore.kernel.org/r/20191212191101.19517-3-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-12-13ALSA: hda: Use waitqueue for RIRB in HDA-core helper, tooTakashi Iwai
This patch implements the same logic that was done for the legacy HD-audio controller driver by the commit 88452da92ba2 ("ALSA: hda: Use standard waitqueue for RIRB wakeup") to the HDA-core helper code, too. This makes snd_hdac_bus_get_response() waiting for the response with bus->rirb_wq instead of polling when bus->polling is false. It'll save both CPU time and response latency. Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Link: https://lore.kernel.org/r/20191212191101.19517-2-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-12-10ALSA: hda: Use standard waitqueue for RIRB wakeupTakashi Iwai
The HD-audio CORB/RIRB communication was programmed in a way that was documented in the reference in decades ago, which is essentially a polling in the waiter side. It's working fine but costs CPU cycles on some platforms that support only slow communications. Also, for some platforms that had unreliable communications, we put longer wait time (2 ms), which accumulate quite long time if you execute many verbs in a shot (e.g. at the initialization or resume phase). This patch attempts to improve the situation by introducing the standard waitqueue in the RIRB waiter side instead of polling. The test results on my machine show significant improvements. The time spent for "cat /proc/asound/card*/codec#*" were changed like: * Intel SKL + Realtek codec before the patch: 0.00user 0.04system 0:00.10elapsed 40.0%CPU after the patch: 0.00user 0.01system 0:00.10elapsed 10.0%CPU * Nvidia GP107GL + Nvidia HDMI codec before the patch: 0.00user 0.00system 0:02.76elapsed 0.0%CPU after the patch: 0.00user 0.00system 0:00.01elapsed 17.0%CPU So, for Intel chips, the total time is same, while the total time is greatly reduced (from 2.76 to 0.01s) for Nvidia chips. The only negative data here is the increase of CPU time for Nvidia, but this is the unavoidable cost for faster wakeups, supposedly. Link: https://lore.kernel.org/r/20191210145727.22054-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-12-03ALSA: hda: Modify stream stripe mask only when neededTakashi Iwai
The recent commit in HD-audio stream management for changing the stripe control seems causing a regression on some platforms. The stripe control is currently used only by HDMI codec, and applying the stripe mask unconditionally may lead to scratchy and static noises as seen on some MacBooks. For addressing the regression, this patch changes the stream management code to apply the stripe mask conditionally only when the codec driver requested. Fixes: 9b6f7e7a296e ("ALSA: hda: program stripe bits for controller") BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=204477 Tested-by: Michael Pobega <mpobega@neverware.com> Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20191202074947.1617-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-11-05ALSA: hda: Disable regmap internal lockingTakashi Iwai
Since we apply the own mutex (bus->cmd_mutex) in HDA core side, the internal locking in regmap is superfluous. This patch adds the flag to indicate that. Also, an infamous side-effect by this change is that it disables the regmap debugfs, too, and this is seen rather good; the regmap debugfs isn't quite useful for HD-audio as it provides the very sparse registers and its debugfs access tends to lead to the way too high resource usages or sometimes hang up. So it'd be rather safe to disable it altogether. Link: https://lore.kernel.org/r/2029139028.10333037.1572874551626.JavaMail.zimbra@redhat.com Link: https://lore.kernel.org/r/20191105081806.4896-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-10-28ALSA: hda: Allow non-Intel device probe gracefullyTakashi Iwai
The recent addition of snd_intel_dsp_driver_probe() check caused a spurious kernel warning when the driver is loaded for a non-Intel hardware due to snd_BUG_ON(). Moreover, for such a hardware, we should always return SND_INTEL_DSP_DRIVER_ANY, not check the dsp_driver option at all. This patch fixes these issues for non-Intel devices. Fixes: 82d9d54a6c0e ("ALSA: hda: add Intel DSP configuration / probe code") Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20191028130634.3501-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-10-28Merge branch 'for-linus' into for-nextTakashi Iwai
Back-merge the development process for catching up the HD-audio fix (and apply a new one on top of that). Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-10-28Revert "ALSA: hda: Flush interrupts on disabling"Takashi Iwai
This reverts commit caa8422d01e983782548648e125fd617cadcec3f. It turned out that this commit caused a regression at shutdown / reboot, as the synchronize_irq() calls seems blocking the whole shutdown. Also another part of the change about shuffling the call order looks suspicious; the azx_stop_chip() call disables the CORB / RIRB while the others may still need the CORB/RIRB update. Since the original commit itself was a cargo-fix, let's revert the whole patch. Fixes: caa8422d01e9 ("ALSA: hda: Flush interrupts on disabling") BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=205333 BugLinK: https://bugs.freedesktop.org/show_bug.cgi?id=111174 Signed-off-by: Takashi Iwai <tiwai@suse.de> Cc: Chris Wilson <chris@chris-wilson.co.uk> Link: https://lore.kernel.org/r/20191028081056.22010-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-10-23ALSA: hda: fix intel DSP configPierre-Louis Bossart
Reshuffle list of devices by historical order and add correct information as needed. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Jaroslav Kysela <perex@perex.cz> Link: https://lore.kernel.org/r/20191022174313.29087-2-perex@perex.cz Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-10-23ALSA: hda: add Intel DSP configuration / probe codeJaroslav Kysela
For distributions, we need one place where we can decide which driver will be activated for the auto-configation of the Intel's HDA hardware with DSP. Actually, we cover three drivers: * Legacy HDA * Intel SST * Intel Sound Open Firmware (SOF) All those drivers registers similar PCI IDs, so the first driver probed from the PCI stack can win. But... it is not guaranteed that the correct driver wins. This commit changes Intel's NHLT ACPI module to a common DSP probe module for the Intel's hardware. All above sound drivers calls this code. The user can force another behaviour using the module parameter 'dsp_driver' located in the 'snd-intel-dspcfg' module. This change allows to add specific dmi checks for the specific systems. The examples are taken from the pull request: https://github.com/thesofproject/linux/pull/927 Tested on Lenovo Carbon X1 7th gen. Signed-off-by: Jaroslav Kysela <perex@perex.cz> Tested-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20191022174313.29087-1-perex@perex.cz Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-10-07ALSA: hdac: clear link output stream mappingRander Wang
Fix potential DMA hang upon starting playback on devices in HDA mode on Intel platforms (Gemini Lake/Whiskey Lake/Comet Lake/Ice Lake). It doesn't affect platforms before Gemini Lake or any Intel device in non-HDA mode. The reset value for the LOSDIV register is all output streams valid. Clear this register to invalidate non-existent streams when the bus is powered up. Signed-off-by: Rander Wang <rander.wang@linux.intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20190930142945.7805-1-pierre-louis.bossart@linux.intel.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-15Revert "ALSA: hda: Add codec on bus address table lately"Takashi Iwai
This reverts commit ee5f85d9290f ("ALSA: hda: Add codec on bus address table lately"). The commit caused several regression since I've overlooked that the function doesn't manage only the caddr_tbl but also the codec linked list that is referred indirectly in the other drivers. Revert for now to make everything back to work. Fixes: ee5f85d9290f ("ALSA: hda: Add codec on bus address table lately") Reported-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-14ALSA: hda: Unexport a few more stuffTakashi Iwai
Drop EXPORT_SYMBOL*() from a few more stuff in HD-audio core that aren't used outside. Particular the unsol event handler can be staticized now because the recent change removed all external callers. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-14ALSA: hda: Drop export of snd_hdac_bus_add/remove_device()Takashi Iwai
snd_hdac_bus_add_device() and snd_hdac_remove_device() are called only internally in hda-core. Let's drop the exports of them and move the declarations into local.h. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-14ALSA: hda: Add codec on bus address table latelyTakashi Iwai
The call of snd_hdac_bus_add_device() is needed only for registering the codec onto the bus caddr_tbl[] that is referred essentially only in the unsol event handler. That is, the reason of this call and the release by the counter-part function snd_hdac_bus_remove_device() is just to assure that the unsol event gets notified to the codec. But the current implementation of the unsol notification wouldn't work properly when the codec is still in a premature init state. So this patch tries to work around it by delaying the caddr_tbl[] registration at the point of snd_hdac_device_register(). Also, the order of snd_hdac_bus_remove_device() and device_del() calls are shuffled to make sure that the unsol event is masked before deleting the device. BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=204565 Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-12ALSA: hda: Set fifo_size for both playback and capture streamsTakashi Iwai
Currently we set hdac_stream.fifo_size field only for the playback stream by some odd reason I forgot, while this field isn't referred in any places. Actually this fifo_size field would have been required in the position report correction for VIA chipset, but due to the lack of the fifo_size set for capture streams, snd-hda-intel driver fetches the register by itself. This patch straightens and simplifies the code by setting the fifo_size field for both playback and capture streams, and use it in the HD-audio controller driver. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-09Merge branch 'topic/hda-bus-ops-cleanup' into for-nextTakashi Iwai
Pull the compile fix on arm due to missing include. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-09ALSA: hda: readl/writel need linux/io.hStephen Rothwell
Fixes: 19abfefd4c76 ("ALSA: hda: Direct MMIO accesses") Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-08Merge branch 'topic/hda-bus-ops-cleanup' into for-nextTakashi Iwai
Pull HD-audio bus ops cleanups. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-08ALSA: hda: Direct MMIO accessesTakashi Iwai
HD-audio drivers access to the mmio registers indirectly via the corresponding bus->io_ops callbacks. This is because some platform (notably Tegra SoC) requires the word-aligned access. But it's rather a rare case, and other platforms suffer from the penalties by indirect calls unnecessarily. This patch is an attempt to optimize and cleanup for this situation. Now the special aligned access is used only when a new kconfig CONFIG_SND_HDA_ALIGNED_MMIO is set. And the HD-audio core itself provides the aligned MMIO access helpers instead of the driver side. If Kconfig isn't set (as default), the standard helpers like readl() or writel() are used directly. A couple of places in ASoC Intel drivers have the access via io_ops reg_writel(), and they are replaced with the direct writel() calls. And now with this patch, the whole bus->io_ops becomes empty, so it's dropped completely. The bus initialization functions are changed accordingly as well to drop the whole bus->io_ops. Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>