[PATCH 2/3] ASoC: expand snd_soc_dpcm_mutex_lock/unlock()

soc-pcm.c has snd_soc_dpcm_mutex_lock/unlock(), but other files can't use it because it is static function.

It requests snd_soc_pcm_runtime as parameter (A), but sometimes we want to use it by snd_soc_card (B).

(A) static inline void snd_soc_dpcm_mutex_lock(struct snd_soc_pcm_runtime *rtd) { mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); } ^^^^^^^^^

(B) mutex_lock_nested(&card->pcm_mutex, card->pcm_subclass); ^^^^

We want to use it with both "rtd" and "card" for dapm lock/unlock. To enable it, this patch uses _Generic macro.

This patch makes snd_soc_dpcm_mutex_{un}lock() global function, and use it on each files.

Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com --- include/sound/soc.h | 45 +++++++++++++++++++++++++++++++++++++++ sound/soc/soc-component.c | 12 +++++------ sound/soc/soc-compress.c | 42 ++++++++++++++++++------------------ sound/soc/soc-core.c | 4 ++-- sound/soc/soc-pcm.c | 17 ++------------- 5 files changed, 76 insertions(+), 44 deletions(-)

diff --git a/include/sound/soc.h b/include/sound/soc.h index 0e17e3230c7a..05004c048dd5 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -1425,6 +1425,51 @@ static inline void _snd_soc_dapm_mutex_assert_held_d(struct snd_soc_dapm_context struct snd_soc_card * : _snd_soc_dapm_mutex_assert_held_c, \ struct snd_soc_dapm_context * : _snd_soc_dapm_mutex_assert_held_d)(x)

+/* + * PCM helper functions + */ +static inline void _snd_soc_dpcm_mutex_lock_c(struct snd_soc_card *card) +{ + mutex_lock_nested(&card->pcm_mutex, card->pcm_subclass); +} + +static inline void _snd_soc_dpcm_mutex_unlock_c(struct snd_soc_card *card) +{ + mutex_unlock(&card->pcm_mutex); +} + +static inline void _snd_soc_dpcm_mutex_assert_held_c(struct snd_soc_card *card) +{ + lockdep_assert_held(&card->pcm_mutex); +} + +static inline void _snd_soc_dpcm_mutex_lock_r(struct snd_soc_pcm_runtime *rtd) +{ + _snd_soc_dpcm_mutex_lock_c(rtd->card); +} + +static inline void _snd_soc_dpcm_mutex_unlock_r(struct snd_soc_pcm_runtime *rtd) +{ + _snd_soc_dpcm_mutex_unlock_c(rtd->card); +} + +static inline void _snd_soc_dpcm_mutex_assert_held_r(struct snd_soc_pcm_runtime *rtd) +{ + _snd_soc_dpcm_mutex_assert_held_c(rtd->card); +} + +#define snd_soc_dpcm_mutex_lock(x) _Generic((x), \ + struct snd_soc_card * : _snd_soc_dpcm_mutex_lock_c, \ + struct snd_soc_pcm_runtime * : _snd_soc_dpcm_mutex_lock_r)(x) + +#define snd_soc_dpcm_mutex_unlock(x) _Generic((x), \ + struct snd_soc_card * : _snd_soc_dpcm_mutex_unlock_c, \ + struct snd_soc_pcm_runtime * : _snd_soc_dpcm_mutex_unlock_r)(x) + +#define snd_soc_dpcm_mutex_assert_held(x) _Generic((x), \ + struct snd_soc_card * : _snd_soc_dpcm_mutex_assert_held_c, \ + struct snd_soc_pcm_runtime * : _snd_soc_dpcm_mutex_assert_held_r)(x) + #include <sound/soc-component.h> #include <sound/soc-card.h> #include <sound/soc-jack.h> diff --git a/sound/soc/soc-component.c b/sound/soc/soc-component.c index 3cd6952212e1..ff25718ff2e8 100644 --- a/sound/soc/soc-component.c +++ b/sound/soc/soc-component.c @@ -550,7 +550,7 @@ int snd_soc_component_compr_get_caps(struct snd_compr_stream *cstream, struct snd_soc_component *component; int i, ret = 0;

- mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); + snd_soc_dpcm_mutex_lock(rtd);

for_each_rtd_components(rtd, i, component) { if (component->driver->compress_ops && @@ -561,7 +561,7 @@ int snd_soc_component_compr_get_caps(struct snd_compr_stream *cstream, } }

- mutex_unlock(&rtd->card->pcm_mutex); + snd_soc_dpcm_mutex_unlock(rtd);

return soc_component_ret(component, ret); } @@ -574,7 +574,7 @@ int snd_soc_component_compr_get_codec_caps(struct snd_compr_stream *cstream, struct snd_soc_component *component; int i, ret = 0;

- mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); + snd_soc_dpcm_mutex_lock(rtd);

for_each_rtd_components(rtd, i, component) { if (component->driver->compress_ops && @@ -585,7 +585,7 @@ int snd_soc_component_compr_get_codec_caps(struct snd_compr_stream *cstream, } }

- mutex_unlock(&rtd->card->pcm_mutex); + snd_soc_dpcm_mutex_unlock(rtd);

return soc_component_ret(component, ret); } @@ -638,7 +638,7 @@ int snd_soc_component_compr_copy(struct snd_compr_stream *cstream, struct snd_soc_component *component; int i, ret = 0;

- mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); + snd_soc_dpcm_mutex_lock(rtd);

for_each_rtd_components(rtd, i, component) { if (component->driver->compress_ops && @@ -649,7 +649,7 @@ int snd_soc_component_compr_copy(struct snd_compr_stream *cstream, } }

- mutex_unlock(&rtd->card->pcm_mutex); + snd_soc_dpcm_mutex_unlock(rtd);

return soc_component_ret(component, ret); } diff --git a/sound/soc/soc-compress.c b/sound/soc/soc-compress.c index 6e74a6c48986..661e9d70994f 100644 --- a/sound/soc/soc-compress.c +++ b/sound/soc/soc-compress.c @@ -62,7 +62,7 @@ static int soc_compr_clean(struct snd_compr_stream *cstream, int rollback) struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); int stream = cstream->direction; /* SND_COMPRESS_xxx is same as SNDRV_PCM_STREAM_xxx */

- mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); + snd_soc_dpcm_mutex_lock(rtd);

if (!rollback) snd_soc_runtime_deactivate(rtd, stream); @@ -84,7 +84,7 @@ static int soc_compr_clean(struct snd_compr_stream *cstream, int rollback) if (!rollback) snd_soc_dapm_stream_stop(rtd, stream);

- mutex_unlock(&rtd->card->pcm_mutex); + snd_soc_dpcm_mutex_unlock(rtd);

snd_soc_pcm_component_pm_runtime_put(rtd, cstream, rollback);

@@ -107,7 +107,7 @@ static int soc_compr_open(struct snd_compr_stream *cstream) if (ret < 0) goto err_no_lock;

- mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); + snd_soc_dpcm_mutex_lock(rtd);

ret = snd_soc_dai_compr_startup(cpu_dai, cstream); if (ret < 0) @@ -123,7 +123,7 @@ static int soc_compr_open(struct snd_compr_stream *cstream)

snd_soc_runtime_activate(rtd, stream); err: - mutex_unlock(&rtd->card->pcm_mutex); + snd_soc_dpcm_mutex_unlock(rtd); err_no_lock: if (ret < 0) soc_compr_clean(cstream, 1); @@ -146,7 +146,7 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream) if (ret < 0) goto be_err;

- mutex_lock_nested(&fe->card->pcm_mutex, fe->card->pcm_subclass); + snd_soc_dpcm_mutex_lock(fe);

/* calculate valid and active FE <-> BE dpcms */ dpcm_process_paths(fe, stream, &list, 1); @@ -182,7 +182,7 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream) fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO;

snd_soc_runtime_activate(fe, stream); - mutex_unlock(&fe->card->pcm_mutex); + snd_soc_dpcm_mutex_unlock(fe);

mutex_unlock(&fe->card->mutex);

@@ -209,7 +209,7 @@ static int soc_compr_free_fe(struct snd_compr_stream *cstream)

mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME);

- mutex_lock_nested(&fe->card->pcm_mutex, fe->card->pcm_subclass); + snd_soc_dpcm_mutex_lock(fe); snd_soc_runtime_deactivate(fe, stream);

fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; @@ -229,7 +229,7 @@ static int soc_compr_free_fe(struct snd_compr_stream *cstream)

dpcm_be_disconnect(fe, stream);

- mutex_unlock(&fe->card->pcm_mutex); + snd_soc_dpcm_mutex_unlock(fe);

snd_soc_link_compr_shutdown(cstream, 0);

@@ -249,7 +249,7 @@ static int soc_compr_trigger(struct snd_compr_stream *cstream, int cmd) int stream = cstream->direction; /* SND_COMPRESS_xxx is same as SNDRV_PCM_STREAM_xxx */ int ret;

- mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); + snd_soc_dpcm_mutex_lock(rtd);

ret = snd_soc_component_compr_trigger(cstream, cmd); if (ret < 0) @@ -269,7 +269,7 @@ static int soc_compr_trigger(struct snd_compr_stream *cstream, int cmd) }

out: - mutex_unlock(&rtd->card->pcm_mutex); + snd_soc_dpcm_mutex_unlock(rtd); return ret; }

@@ -327,7 +327,7 @@ static int soc_compr_set_params(struct snd_compr_stream *cstream, int stream = cstream->direction; /* SND_COMPRESS_xxx is same as SNDRV_PCM_STREAM_xxx */ int ret;

- mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); + snd_soc_dpcm_mutex_lock(rtd);

/* * First we call set_params for the CPU DAI, then the component @@ -352,14 +352,14 @@ static int soc_compr_set_params(struct snd_compr_stream *cstream,

/* cancel any delayed stream shutdown that is pending */ rtd->pop_wait = 0; - mutex_unlock(&rtd->card->pcm_mutex); + snd_soc_dpcm_mutex_unlock(rtd);

cancel_delayed_work_sync(&rtd->delayed_work);

return 0;

err: - mutex_unlock(&rtd->card->pcm_mutex); + snd_soc_dpcm_mutex_unlock(rtd); return ret; }

@@ -404,9 +404,9 @@ static int soc_compr_set_params_fe(struct snd_compr_stream *cstream, ret = snd_soc_link_compr_set_params(cstream); if (ret < 0) goto out; - mutex_lock_nested(&fe->card->pcm_mutex, fe->card->pcm_subclass); + snd_soc_dpcm_mutex_lock(fe); dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_START); - mutex_unlock(&fe->card->pcm_mutex); + snd_soc_dpcm_mutex_unlock(fe); fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE;

out: @@ -422,7 +422,7 @@ static int soc_compr_get_params(struct snd_compr_stream *cstream, struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); int ret = 0;

- mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); + snd_soc_dpcm_mutex_lock(rtd);

ret = snd_soc_dai_compr_get_params(cpu_dai, cstream, params); if (ret < 0) @@ -430,7 +430,7 @@ static int soc_compr_get_params(struct snd_compr_stream *cstream,

ret = snd_soc_component_compr_get_params(cstream, params); err: - mutex_unlock(&rtd->card->pcm_mutex); + snd_soc_dpcm_mutex_unlock(rtd); return ret; }

@@ -440,7 +440,7 @@ static int soc_compr_ack(struct snd_compr_stream *cstream, size_t bytes) struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); int ret;

- mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); + snd_soc_dpcm_mutex_lock(rtd);

ret = snd_soc_dai_compr_ack(cpu_dai, cstream, bytes); if (ret < 0) @@ -448,7 +448,7 @@ static int soc_compr_ack(struct snd_compr_stream *cstream, size_t bytes)

ret = snd_soc_component_compr_ack(cstream, bytes); err: - mutex_unlock(&rtd->card->pcm_mutex); + snd_soc_dpcm_mutex_unlock(rtd); return ret; }

@@ -459,7 +459,7 @@ static int soc_compr_pointer(struct snd_compr_stream *cstream, int ret; struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);

- mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); + snd_soc_dpcm_mutex_lock(rtd);

ret = snd_soc_dai_compr_pointer(cpu_dai, cstream, tstamp); if (ret < 0) @@ -467,7 +467,7 @@ static int soc_compr_pointer(struct snd_compr_stream *cstream,

ret = snd_soc_component_compr_pointer(cstream, tstamp); out: - mutex_unlock(&rtd->card->pcm_mutex); + snd_soc_dpcm_mutex_unlock(rtd); return ret; }

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 9bbcff492c1e..4594505cdae2 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -348,7 +348,7 @@ void snd_soc_close_delayed_work(struct snd_soc_pcm_runtime *rtd) struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); int playback = SNDRV_PCM_STREAM_PLAYBACK;

- mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); + snd_soc_dpcm_mutex_lock(rtd);

dev_dbg(rtd->dev, "ASoC: pop wq checking: %s status: %s waiting: %s\n", @@ -364,7 +364,7 @@ void snd_soc_close_delayed_work(struct snd_soc_pcm_runtime *rtd) SND_SOC_DAPM_STREAM_STOP); }

- mutex_unlock(&rtd->card->pcm_mutex); + snd_soc_dpcm_mutex_unlock(rtd); } EXPORT_SYMBOL_GPL(snd_soc_close_delayed_work);

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 1d0c3d57f66d..7247f44faa1c 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -49,19 +49,6 @@ static inline int _soc_pcm_ret(struct snd_soc_pcm_runtime *rtd, return ret; }

-static inline void snd_soc_dpcm_mutex_lock(struct snd_soc_pcm_runtime *rtd) -{ - mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); -} - -static inline void snd_soc_dpcm_mutex_unlock(struct snd_soc_pcm_runtime *rtd) -{ - mutex_unlock(&rtd->card->pcm_mutex); -} - -#define snd_soc_dpcm_mutex_assert_held(rtd) \ - lockdep_assert_held(&(rtd)->card->pcm_mutex) - static inline void snd_soc_dpcm_stream_lock_irq(struct snd_soc_pcm_runtime *rtd, int stream) { @@ -2664,7 +2651,7 @@ int snd_soc_dpcm_runtime_update(struct snd_soc_card *card) struct snd_soc_pcm_runtime *fe; int ret = 0;

- mutex_lock_nested(&card->pcm_mutex, card->pcm_subclass); + snd_soc_dpcm_mutex_lock(card); /* shutdown all old paths first */ for_each_card_rtds(card, fe) { ret = soc_dpcm_fe_runtime_update(fe, 0); @@ -2680,7 +2667,7 @@ int snd_soc_dpcm_runtime_update(struct snd_soc_card *card) }

out: - mutex_unlock(&card->pcm_mutex); + snd_soc_dpcm_mutex_unlock(card); return ret; } EXPORT_SYMBOL_GPL(snd_soc_dpcm_runtime_update);