June 2020 - Sound-open-firmware - mailman.alsa-project.org

[Sound-open-firmware] [PATCH v3 0/5] Add a vhost RPMsg API
by Guennadi Liakhovetski 14 Jul '20

14 Jul '20

v3: - address several checkpatch warnings - address comments from Mathieu Poirier v2: - update patch #5 with a correct vhost_dev_init() prototype - drop patch #6 - it depends on a different patch, that is currently an RFC - address comments from Pierre-Louis Bossart: * remove "default n" from Kconfig Linux supports RPMsg over VirtIO for "remote processor" /AMP use cases. It can however also be used for virtualisation scenarios, e.g. when using KVM to run Linux on both the host and the guests. This patch set adds a wrapper API to facilitate writing vhost drivers for such RPMsg-based solutions. The first use case is an audio DSP virtualisation project, currently under development, ready for review and submission, available at https://github.com/thesofproject/linux/pull/1501/commits A further patch for the ADSP vhost RPMsg driver will be sent separately for review only since it cannot be merged without audio patches being upstreamed first. Thanks Guennadi Guennadi Liakhovetski (5): vhost: convert VHOST_VSOCK_SET_RUNNING to a generic ioctl vhost: (cosmetic) remove a superfluous variable initialisation rpmsg: move common structures and defines to headers rpmsg: update documentation vhost: add an RPMsg API Documentation/rpmsg.txt | 6 +- drivers/rpmsg/virtio_rpmsg_bus.c | 78 +------- drivers/vhost/Kconfig | 7 + drivers/vhost/Makefile | 3 + drivers/vhost/rpmsg.c | 382 +++++++++++++++++++++++++++++++++++++++ drivers/vhost/vhost.c | 2 +- drivers/vhost/vhost_rpmsg.h | 74 ++++++++ include/linux/virtio_rpmsg.h | 81 +++++++++ include/uapi/linux/rpmsg.h | 3 + include/uapi/linux/vhost.h | 4 +- 10 files changed, 559 insertions(+), 81 deletions(-) create mode 100644 drivers/vhost/rpmsg.c create mode 100644 drivers/vhost/vhost_rpmsg.h create mode 100644 include/linux/virtio_rpmsg.h -- 1.9.3

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[Sound-open-firmware] revised SOF ABI change process now in effect
by Kai Vehmanen 02 Jul '20

02 Jul '20

Hi all, we’ve been working on some improvements to the SOF ABI change process since April this year, to address some of the issues seen in pull-req reviews at start of this year. The problem statement and resulting discussing can be seen at: https://github.com/orgs/thesofproject/teams/sof-developers/discussions/35 https://github.com/thesofproject/sof-docs/pull/244 The new process is now in effect and documented at: https://thesofproject.github.io/latest/contribute/process/abiprocess.html The main changes: - the process is now documented in sof-docs with a diagram - a new RFC step to discuss the interface before implementation is done - driver PR is no longer mandatory to be done at same time (but depends on type of change) - when driver+FW changes are both needed, driver change must be merged first Br, Kai

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[Sound-open-firmware] Platform vs CPU component driver
by Daniel Baluta 30 Jun '20

30 Jun '20

Hi Ranjani, In sound/soc/sof/core.c there is this code » /* set up platform component driver */ » snd_sof_new_platform_drv(sdev); Components in ALSA are of type: CPU, platform and codec. So, my question is that ignoring some language semantics isn't this function setting up the CPU component driver? thanks, Daniel.

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Re: [Sound-open-firmware] [PATCH AUTOSEL 5.7 055/388] ASoC: SOF: Do nothing when DSP PM callbacks are not set
by Daniel Baluta 18 Jun '20

18 Jun '20

On 6/18/20 2:01 PM, Mark Brown wrote: > On Wed, Jun 17, 2020 at 09:02:32PM -0400, Sasha Levin wrote: >> From: Daniel Baluta <daniel.baluta(a)nxp.com> >> >> [ Upstream commit c26fde3b15ed41f5f452f1da727795f787833287 ] >> >> This provides a better separation between runtime and PM sleep >> callbacks. >> >> Only do nothing if given runtime flag is set and calback is not set. >> >> With the current implementation, if PM sleep callback is set but runtime >> callback is not set then at runtime resume we reload the firmware even >> if we do not support runtime resume callback. > This doesn't look like a bugfix, just an optimization? Indeed can be seen as an optimization, but it does unexpected things which can cause trouble and weird behavior for people not familiar with the matter. For example, as explained in the commit message if you only provide System PM handler but not runtime PM handler, then the DSP will be resetted even if this is not the intention.

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[Sound-open-firmware] [PATCH AUTOSEL 5.4 251/266] ASoC: SOF: nocodec: conditionally set dpcm_capture/dpcm_playback flags
by Sasha Levin 18 Jun '20

18 Jun '20

From: Pierre-Louis Bossart <pierre-louis.bossart(a)linux.intel.com> [ Upstream commit ba4e5abc6c4e173af7c941c03c067263b686665d ] With additional checks on dailinks, we see errors such as [ 3.000418] sof-nocodec sof-nocodec: CPU DAI DMIC01 Pin for rtd NoCodec-6 does not support playback It's not clear why we set the dpcm_playback and dpcm_capture flags unconditionally, add a check on number of channels for each direction to avoid invalid configurations. Fixes: 8017b8fd37bf5e ('ASoC: SOF: Add Nocodec machine driver support') Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart(a)linux.intel.com> Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski(a)linux.intel.com> Reviewed-by: Daniel Baluta <daniel.baluta(a)gmail.com> Reviewed-by: Bard Liao <yung-chuan.liao(a)linux.intel.com> Link: https://lore.kernel.org/r/20200608194415.4663-5-pierre-louis.bossart@linux.… Signed-off-by: Mark Brown <broonie(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- sound/soc/sof/nocodec.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/sound/soc/sof/nocodec.c b/sound/soc/sof/nocodec.c index 3d128e5a132c..ea0fe9a09f3f 100644 --- a/sound/soc/sof/nocodec.c +++ b/sound/soc/sof/nocodec.c @@ -52,8 +52,10 @@ static int sof_nocodec_bes_setup(struct device *dev, links[i].platforms->name = dev_name(dev); links[i].codecs->dai_name = "snd-soc-dummy-dai"; links[i].codecs->name = "snd-soc-dummy"; - links[i].dpcm_playback = 1; - links[i].dpcm_capture = 1; + if (ops->drv[i].playback.channels_min) + links[i].dpcm_playback = 1; + if (ops->drv[i].capture.channels_min) + links[i].dpcm_capture = 1; } card->dai_link = links; -- 2.25.1

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[Sound-open-firmware] [PATCH AUTOSEL 5.4 130/266] ASoC: SOF: core: fix error return code in sof_probe_continue()
by Sasha Levin 18 Jun '20

18 Jun '20

From: Wei Yongjun <weiyongjun1(a)huawei.com> [ Upstream commit 7d8785bc7adbb4dc5ba8ee06994107637848ded8 ] Fix to return negative error code -ENOMEM from the IPC init error handling case instead of 0, as done elsewhere in this function. Fixes: c16211d6226d ("ASoC: SOF: Add Sound Open Firmware driver core") Reported-by: Hulk Robot <hulkci(a)huawei.com> Signed-off-by: Wei Yongjun <weiyongjun1(a)huawei.com> Link: https://lore.kernel.org/r/20200509093337.78897-1-weiyongjun1@huawei.com Signed-off-by: Mark Brown <broonie(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- sound/soc/sof/core.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/soc/sof/core.c b/sound/soc/sof/core.c index 12aec140819a..2a6b84d2781e 100644 --- a/sound/soc/sof/core.c +++ b/sound/soc/sof/core.c @@ -372,6 +372,7 @@ static int sof_probe_continue(struct snd_sof_dev *sdev) /* init the IPC */ sdev->ipc = snd_sof_ipc_init(sdev); if (!sdev->ipc) { + ret = -ENOMEM; dev_err(sdev->dev, "error: failed to init DSP IPC %d\n", ret); goto ipc_err; } -- 2.25.1

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[Sound-open-firmware] [PATCH AUTOSEL 5.4 041/266] ASoC: SOF: Do nothing when DSP PM callbacks are not set
by Sasha Levin 18 Jun '20

18 Jun '20

From: Daniel Baluta <daniel.baluta(a)nxp.com> [ Upstream commit c26fde3b15ed41f5f452f1da727795f787833287 ] This provides a better separation between runtime and PM sleep callbacks. Only do nothing if given runtime flag is set and calback is not set. With the current implementation, if PM sleep callback is set but runtime callback is not set then at runtime resume we reload the firmware even if we do not support runtime resume callback. Signed-off-by: Daniel Baluta <daniel.baluta(a)nxp.com> Signed-off-by: Kai Vehmanen <kai.vehmanen(a)linux.intel.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart(a)linux.intel.com> Reviewed-by: Ranjani Sridharan <ranjani.sridharan(a)linux.intel.com> Link: https://lore.kernel.org/r/20200515135958.17511-2-kai.vehmanen@linux.intel.c… Signed-off-by: Mark Brown <broonie(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- sound/soc/sof/pm.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/sound/soc/sof/pm.c b/sound/soc/sof/pm.c index 195af259e78e..128680b09c20 100644 --- a/sound/soc/sof/pm.c +++ b/sound/soc/sof/pm.c @@ -266,7 +266,10 @@ static int sof_resume(struct device *dev, bool runtime_resume) int ret; /* do nothing if dsp resume callbacks are not set */ - if (!sof_ops(sdev)->resume || !sof_ops(sdev)->runtime_resume) + if (!runtime_resume && !sof_ops(sdev)->resume) + return 0; + + if (runtime_resume && !sof_ops(sdev)->runtime_resume) return 0; /* DSP was never successfully started, nothing to resume */ @@ -346,7 +349,10 @@ static int sof_suspend(struct device *dev, bool runtime_suspend) int ret; /* do nothing if dsp suspend callback is not set */ - if (!sof_ops(sdev)->suspend) + if (!runtime_suspend && !sof_ops(sdev)->suspend) + return 0; + + if (runtime_suspend && !sof_ops(sdev)->runtime_suspend) return 0; if (sdev->fw_state != SOF_FW_BOOT_COMPLETE) -- 2.25.1

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[Sound-open-firmware] [PATCH AUTOSEL 5.4 005/266] ASoC: SOF: imx8: Fix randbuild error
by Sasha Levin 18 Jun '20

18 Jun '20

From: YueHaibing <yuehaibing(a)huawei.com> [ Upstream commit fe17e6cdc0fefca96ba9659be4b2b07487cbf0c5 ] when do randconfig like this: CONFIG_SND_SOC_SOF_IMX8_SUPPORT=y CONFIG_SND_SOC_SOF_IMX8=y CONFIG_SND_SOC_SOF_OF=y CONFIG_IMX_DSP=m CONFIG_IMX_SCU=y there is a link error: sound/soc/sof/imx/imx8.o: In function 'imx8_send_msg': imx8.c:(.text+0x380): undefined reference to 'imx_dsp_ring_doorbell' Select IMX_DSP in SND_SOC_SOF_IMX8_SUPPORT to fix this Fixes: f9ad75468453 ("ASoC: SOF: imx: fix reverse CONFIG_SND_SOC_SOF_OF dependency") Reported-by: Hulk Robot <hulkci(a)huawei.com> Signed-off-by: YueHaibing <yuehaibing(a)huawei.com> Signed-off-by: Daniel Baluta <daniel.baluta(a)nxp.com> Link: https://lore.kernel.org/r/20200409071832.2039-2-daniel.baluta@oss.nxp.com Signed-off-by: Mark Brown <broonie(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- sound/soc/sof/imx/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/sof/imx/Kconfig b/sound/soc/sof/imx/Kconfig index 71f318bc2c74..b4f0426685c4 100644 --- a/sound/soc/sof/imx/Kconfig +++ b/sound/soc/sof/imx/Kconfig @@ -14,7 +14,7 @@ if SND_SOC_SOF_IMX_TOPLEVEL config SND_SOC_SOF_IMX8_SUPPORT bool "SOF support for i.MX8" depends on IMX_SCU - depends on IMX_DSP + select IMX_DSP help This adds support for Sound Open Firmware for NXP i.MX8 platforms Say Y if you have such a device. -- 2.25.1

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[Sound-open-firmware] [PATCH AUTOSEL 5.7 364/388] ASoC: SOF: nocodec: conditionally set dpcm_capture/dpcm_playback flags
by Sasha Levin 18 Jun '20

18 Jun '20

From: Pierre-Louis Bossart <pierre-louis.bossart(a)linux.intel.com> [ Upstream commit ba4e5abc6c4e173af7c941c03c067263b686665d ] With additional checks on dailinks, we see errors such as [ 3.000418] sof-nocodec sof-nocodec: CPU DAI DMIC01 Pin for rtd NoCodec-6 does not support playback It's not clear why we set the dpcm_playback and dpcm_capture flags unconditionally, add a check on number of channels for each direction to avoid invalid configurations. Fixes: 8017b8fd37bf5e ('ASoC: SOF: Add Nocodec machine driver support') Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart(a)linux.intel.com> Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski(a)linux.intel.com> Reviewed-by: Daniel Baluta <daniel.baluta(a)gmail.com> Reviewed-by: Bard Liao <yung-chuan.liao(a)linux.intel.com> Link: https://lore.kernel.org/r/20200608194415.4663-5-pierre-louis.bossart@linux.… Signed-off-by: Mark Brown <broonie(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- sound/soc/sof/nocodec.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/sound/soc/sof/nocodec.c b/sound/soc/sof/nocodec.c index 2233146386cc..71cf5f9db79d 100644 --- a/sound/soc/sof/nocodec.c +++ b/sound/soc/sof/nocodec.c @@ -52,8 +52,10 @@ static int sof_nocodec_bes_setup(struct device *dev, links[i].platforms->name = dev_name(dev); links[i].codecs->dai_name = "snd-soc-dummy-dai"; links[i].codecs->name = "snd-soc-dummy"; - links[i].dpcm_playback = 1; - links[i].dpcm_capture = 1; + if (ops->drv[i].playback.channels_min) + links[i].dpcm_playback = 1; + if (ops->drv[i].capture.channels_min) + links[i].dpcm_capture = 1; } card->dai_link = links; -- 2.25.1

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[Sound-open-firmware] [PATCH AUTOSEL 5.7 307/388] ASoC: SOF: Intel: hda: fix generic hda codec support
by Sasha Levin 18 Jun '20

18 Jun '20

From: Kai Vehmanen <kai.vehmanen(a)linux.intel.com> [ Upstream commit 89d73ccab20a684d8446cea4d8ac6a2608c8d390 ] Add support for using generic codec driver with SOF. Generic driver is used if: - snd_sof_intel_hda_common.hda_model="generic" is set, or - fallback if no other codec driver is found The implementation is aligned with snd-hda-intel driver, and fixes audio support for systems like Acer Swift 3 SF314-57G, on which this issue was originally reported. Signed-off-by: Kai Vehmanen <kai.vehmanen(a)linux.intel.com> Reviewed-by: Hui Wang <hui.wang(a)canonical.com> Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski(a)linux.intel.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart(a)linux.intel.com> BugLink: https://github.com/thesofproject/linux/issues/1807 BugLink: https://bugs.launchpad.net/bugs/1877757 Link: https://lore.kernel.org/r/20200529160358.12134-1-kai.vehmanen@linux.intel.c… Signed-off-by: Mark Brown <broonie(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- sound/soc/sof/intel/hda-codec.c | 51 +++++++++++++++++++++++++++++---- 1 file changed, 45 insertions(+), 6 deletions(-) diff --git a/sound/soc/sof/intel/hda-codec.c b/sound/soc/sof/intel/hda-codec.c index 3041fbbb010a..ea021db697b8 100644 --- a/sound/soc/sof/intel/hda-codec.c +++ b/sound/soc/sof/intel/hda-codec.c @@ -24,19 +24,44 @@ #define IDISP_VID_INTEL 0x80860000 /* load the legacy HDA codec driver */ -static int hda_codec_load_module(struct hda_codec *codec) +static int request_codec_module(struct hda_codec *codec) { #ifdef MODULE char alias[MODULE_NAME_LEN]; - const char *module = alias; + const char *mod = NULL; - snd_hdac_codec_modalias(&codec->core, alias, sizeof(alias)); - dev_dbg(&codec->core.dev, "loading codec module: %s\n", module); - request_module(module); + switch (codec->probe_id) { + case HDA_CODEC_ID_GENERIC: +#if IS_MODULE(CONFIG_SND_HDA_GENERIC) + mod = "snd-hda-codec-generic"; #endif + break; + default: + snd_hdac_codec_modalias(&codec->core, alias, sizeof(alias)); + mod = alias; + break; + } + + if (mod) { + dev_dbg(&codec->core.dev, "loading codec module: %s\n", mod); + request_module(mod); + } +#endif /* MODULE */ return device_attach(hda_codec_dev(codec)); } +static int hda_codec_load_module(struct hda_codec *codec) +{ + int ret = request_codec_module(codec); + + if (ret <= 0) { + codec->probe_id = HDA_CODEC_ID_GENERIC; + ret = request_codec_module(codec); + } + + return ret; +} + /* enable controller wake up event for all codecs with jack connectors */ void hda_codec_jack_wake_enable(struct snd_sof_dev *sdev) { @@ -78,6 +103,13 @@ void hda_codec_jack_check(struct snd_sof_dev *sdev) {} EXPORT_SYMBOL_NS(hda_codec_jack_wake_enable, SND_SOC_SOF_HDA_AUDIO_CODEC); EXPORT_SYMBOL_NS(hda_codec_jack_check, SND_SOC_SOF_HDA_AUDIO_CODEC); +#if IS_ENABLED(CONFIG_SND_HDA_GENERIC) +#define is_generic_config(bus) \ + ((bus)->modelname && !strcmp((bus)->modelname, "generic")) +#else +#define is_generic_config(x) 0 +#endif + /* probe individual codec */ static int hda_codec_probe(struct snd_sof_dev *sdev, int address, bool hda_codec_use_common_hdmi) @@ -87,6 +119,7 @@ static int hda_codec_probe(struct snd_sof_dev *sdev, int address, #endif struct hda_bus *hbus = sof_to_hbus(sdev); struct hdac_device *hdev; + struct hda_codec *codec; u32 hda_cmd = (address << 28) | (AC_NODE_ROOT << 20) | (AC_VERB_PARAMETERS << 8) | AC_PAR_VENDOR_ID; u32 resp = -1; @@ -108,6 +141,7 @@ static int hda_codec_probe(struct snd_sof_dev *sdev, int address, hda_priv->codec.bus = hbus; hdev = &hda_priv->codec.core; + codec = &hda_priv->codec; ret = snd_hdac_ext_bus_device_init(&hbus->core, address, hdev); if (ret < 0) @@ -122,6 +156,11 @@ static int hda_codec_probe(struct snd_sof_dev *sdev, int address, hda_priv->need_display_power = true; } + if (is_generic_config(hbus)) + codec->probe_id = HDA_CODEC_ID_GENERIC; + else + codec->probe_id = 0; + /* * if common HDMI codec driver is not used, codec load * is skipped here and hdac_hdmi is used instead @@ -129,7 +168,7 @@ static int hda_codec_probe(struct snd_sof_dev *sdev, int address, if (hda_codec_use_common_hdmi || (resp & 0xFFFF0000) != IDISP_VID_INTEL) { hdev->type = HDA_DEV_LEGACY; - ret = hda_codec_load_module(&hda_priv->codec); + ret = hda_codec_load_module(codec); /* * handle ret==0 (no driver bound) as an error, but pass * other return codes without modification -- 2.25.1

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Sound-open-firmware June 2020