[PATCH 04/10] ASoC: SOF: Intel: TGL: set core_get/put ops

From: Kai Vehmanen <kai.vehmanen@linux.intel.com>
To: alsa-devel@alsa-project.org, broonie@kernel.org
Cc: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>,
	kai.vehmanen@linux.intel.com, yung-chuan.liao@linux.intel.com,
	lgirdwood@gmail.com, pierre-louis.bossart@linux.intel.com,
	ranjani.sridharan@linux.intel.com, daniel.baluta@nxp.com
Subject: [PATCH 04/10] ASoC: SOF: Intel: TGL: set core_get/put ops
Date: Fri, 19 Nov 2021 21:26:15 +0200	[thread overview]
Message-ID: <20211119192621.4096077-5-kai.vehmanen@linux.intel.com> (raw)
In-Reply-To: <20211119192621.4096077-1-kai.vehmanen@linux.intel.com>

From: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>

Set core_get/put() ops for TGL. When core_get()
is requested for a core, its ref_count is incremented
and the PM_CORE_ENABLE IPC sent to the firmware to
power up the core if the current ref_count is 1.
Conversely, the ref_count is decremented in core_put()
and an IPC is sent to the DSP to power off the core
if the ref_count is 0.

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>
---
 sound/soc/sof/intel/tgl.c | 42 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/sound/soc/sof/intel/tgl.c b/sound/soc/sof/intel/tgl.c
index 48da8e7a67bc..51011b0b8c11 100644
--- a/sound/soc/sof/intel/tgl.c
+++ b/sound/soc/sof/intel/tgl.c
@@ -20,6 +20,46 @@ static const struct snd_sof_debugfs_map tgl_dsp_debugfs[] = {
 	{"dsp", HDA_DSP_BAR,  0, 0x10000, SOF_DEBUGFS_ACCESS_ALWAYS},
 };
 
+static int tgl_dsp_core_get(struct snd_sof_dev *sdev, int core)
+{
+	struct sof_ipc_pm_core_config pm_core_config = {
+		.hdr = {
+			.cmd = SOF_IPC_GLB_PM_MSG | SOF_IPC_PM_CORE_ENABLE,
+			.size = sizeof(pm_core_config),
+		},
+		.enable_mask = sdev->enabled_cores_mask | BIT(core),
+	};
+
+	/* power up primary core if not already powered up and return */
+	if (core == SOF_DSP_PRIMARY_CORE)
+		return hda_dsp_enable_core(sdev, BIT(core));
+
+	/* notify DSP for secondary cores */
+	return sof_ipc_tx_message(sdev->ipc, pm_core_config.hdr.cmd,
+				 &pm_core_config, sizeof(pm_core_config),
+				 &pm_core_config, sizeof(pm_core_config));
+}
+
+static int tgl_dsp_core_put(struct snd_sof_dev *sdev, int core)
+{
+	struct sof_ipc_pm_core_config pm_core_config = {
+		.hdr = {
+			.cmd = SOF_IPC_GLB_PM_MSG | SOF_IPC_PM_CORE_ENABLE,
+			.size = sizeof(pm_core_config),
+		},
+		.enable_mask = sdev->enabled_cores_mask & ~BIT(core),
+	};
+
+	/* power down primary core and return */
+	if (core == SOF_DSP_PRIMARY_CORE)
+		return hda_dsp_core_reset_power_down(sdev, BIT(core));
+
+	/* notify DSP for secondary cores */
+	return sof_ipc_tx_message(sdev->ipc, pm_core_config.hdr.cmd,
+				 &pm_core_config, sizeof(pm_core_config),
+				 &pm_core_config, sizeof(pm_core_config));
+}
+
 /* Tigerlake ops */
 const struct snd_sof_dsp_ops sof_tgl_ops = {
 	/* probe/remove/shutdown */
@@ -96,6 +136,8 @@ const struct snd_sof_dsp_ops sof_tgl_ops = {
 	/* dsp core power up/down */
 	.core_power_up = hda_dsp_enable_core,
 	.core_power_down = hda_dsp_core_reset_power_down,
+	.core_get = tgl_dsp_core_get,
+	.core_put = tgl_dsp_core_put,
 
 	/* firmware run */
 	.run = hda_dsp_cl_boot_firmware_iccmax,
-- 
2.33.0

