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| author | Ranjani Sridharan <ranjani.sridharan@linux.intel.com> | 2021-11-19 22:26:14 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2021-11-22 18:40:17 +0300 |
| commit | c414d5df9d05471aa47f50fca7fa4412daca7ac7 (patch) | |
| tree | b2d484b996b7d6667a903b1c1376c81fa91871fd /sound/soc/sof | |
| parent | 5974f6843203f0061d9df05c32262a10359740a6 (diff) | |
| download | linux-c414d5df9d05471aa47f50fca7fa4412daca7ac7.tar.xz | |
ASoC: SOF: Add ops for core_get and core_put
Add ops to get/put a core that will be used to power
up/down a core along with incrementing/decrementing
its ref_count.
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20211119192621.4096077-4-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/sof')
| -rw-r--r-- | sound/soc/sof/ops.h | 63 | ||||
| -rw-r--r-- | sound/soc/sof/sof-priv.h | 2 |
2 files changed, 65 insertions, 0 deletions
diff --git a/sound/soc/sof/ops.h b/sound/soc/sof/ops.h index 09bf38fdfb8a..61dc2768b000 100644 --- a/sound/soc/sof/ops.h +++ b/sound/soc/sof/ops.h @@ -103,6 +103,69 @@ static inline int snd_sof_dsp_core_power_down(struct snd_sof_dev *sdev, return ret; } +static inline int snd_sof_dsp_core_get(struct snd_sof_dev *sdev, int core) +{ + if (core > sdev->num_cores - 1) { + dev_err(sdev->dev, "invalid core id: %d for num_cores: %d\n", core, + sdev->num_cores); + return -EINVAL; + } + + if (sof_ops(sdev)->core_get) { + int ret; + + /* if current ref_count is > 0, increment it and return */ + if (sdev->dsp_core_ref_count[core] > 0) { + sdev->dsp_core_ref_count[core]++; + return 0; + } + + /* power up the core */ + ret = sof_ops(sdev)->core_get(sdev, core); + if (ret < 0) + return ret; + + /* increment ref_count */ + sdev->dsp_core_ref_count[core]++; + + /* and update enabled_cores_mask */ + sdev->enabled_cores_mask |= BIT(core); + + dev_dbg(sdev->dev, "Core %d powered up\n", core); + } + + return 0; +} + +static inline int snd_sof_dsp_core_put(struct snd_sof_dev *sdev, int core) +{ + if (core > sdev->num_cores - 1) { + dev_err(sdev->dev, "invalid core id: %d for num_cores: %d\n", core, + sdev->num_cores); + return -EINVAL; + } + + if (sof_ops(sdev)->core_put) { + int ret; + + /* decrement ref_count and return if it is > 0 */ + if (--(sdev->dsp_core_ref_count[core]) > 0) + return 0; + + /* power down the core */ + ret = sof_ops(sdev)->core_put(sdev, core); + if (ret < 0) + return ret; + + /* and update enabled_cores_mask */ + sdev->enabled_cores_mask &= ~BIT(core); + + dev_dbg(sdev->dev, "Core %d powered down\n", core); + } + + return 0; +} + /* pre/post fw load */ static inline int snd_sof_dsp_pre_fw_run(struct snd_sof_dev *sdev) { diff --git a/sound/soc/sof/sof-priv.h b/sound/soc/sof/sof-priv.h index a56f3c8b483f..f7c86a72ac10 100644 --- a/sound/soc/sof/sof-priv.h +++ b/sound/soc/sof/sof-priv.h @@ -134,6 +134,8 @@ struct snd_sof_dsp_ops { unsigned int core_mask); /* optional */ int (*core_power_down)(struct snd_sof_dev *sof_dev, unsigned int core_mask); /* optional */ + int (*core_get)(struct snd_sof_dev *sof_dev, int core); /* optional */ + int (*core_put)(struct snd_sof_dev *sof_dev, int core); /* optional */ /* * Register IO: only used by respective drivers themselves, |