1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
12 #include "sof-priv.h"
13 #include "sof-audio.h"
18  * D-states. Platform-specific substates, if any, should be
19  * handled by the platform-specific parts.
25 	switch (sdev->system_suspend_target) {  in snd_sof_dsp_power_target()
37 		 * Additional criteria such Soundwire clock-stop mode and  in snd_sof_dsp_power_target()
59 	list_for_each_entry(dfse, &sdev->dfsentry_list, list) {  in sof_cache_debugfs()
62 		if (dfse->type == SOF_DFSENTRY_TYPE_BUF)  in sof_cache_debugfs()
66 		if (dfse->access_type == SOF_DEBUGFS_ACCESS_D0_ONLY)  in sof_cache_debugfs()
67 			memcpy_fromio(dfse->cache_buf, dfse->io_mem,  in sof_cache_debugfs()
68 				      dfse->size);  in sof_cache_debugfs()
76 	const struct sof_ipc_pm_ops *pm_ops = sdev->ipc->ops->pm;  in sof_resume()
77 	const struct sof_ipc_tplg_ops *tplg_ops = sdev->ipc->ops->tplg;  in sof_resume()
78 	u32 old_state = sdev->dsp_power_state.state;  in sof_resume()
82 	if (!runtime_resume && !sof_ops(sdev)->resume)  in sof_resume()
85 	if (runtime_resume && !sof_ops(sdev)->runtime_resume)  in sof_resume()
89 	if (sdev->first_boot)  in sof_resume()
101 		dev_err(sdev->dev,  in sof_resume()
102 			"error: failed to power up DSP after resume\n");  in sof_resume()
107 	 * Nothing further to be done for platforms that support the low power  in sof_resume()
109 	 * low-power D0 substate  in sof_resume()
111 	if (!runtime_resume && sof_ops(sdev)->set_power_state &&  in sof_resume()
116 			dev_warn(sdev->dev,  in sof_resume()
126 		dev_err(sdev->dev,  in sof_resume()
141 		dev_err(sdev->dev,  in sof_resume()
152 		dev_warn(sdev->dev,  in sof_resume()
158 	if (tplg_ops->set_up_all_pipelines) {  in sof_resume()
159 		ret = tplg_ops->set_up_all_pipelines(sdev, false);  in sof_resume()
161 			dev_err(sdev->dev, "Failed to restore pipeline after resume %d\n", ret);  in sof_resume()
166 	/* Notify clients not managed by pm framework about core resume */  in sof_resume()
170 	if (pm_ops && pm_ops->ctx_restore) {  in sof_resume()
171 		ret = pm_ops->ctx_restore(sdev);  in sof_resume()
173 			dev_err(sdev->dev, "ctx_restore IPC error during resume: %d\n", ret);  in sof_resume()
182 	const struct sof_ipc_pm_ops *pm_ops = sdev->ipc->ops->pm;  in sof_suspend()
183 	const struct sof_ipc_tplg_ops *tplg_ops = sdev->ipc->ops->tplg;  in sof_suspend()
189 	if (!runtime_suspend && !sof_ops(sdev)->suspend)  in sof_suspend()
192 	if (runtime_suspend && !sof_ops(sdev)->runtime_suspend)  in sof_suspend()
195 	if (sdev->fw_state != SOF_FW_BOOT_COMPLETE)  in sof_suspend()
202 			dev_err(sdev->dev,  in sof_suspend()
212 	/* Skip to platform-specific suspend if DSP is entering D0 */  in sof_suspend()
215 		/* Notify clients not managed by pm framework about core suspend */  in sof_suspend()
220 	if (tplg_ops->tear_down_all_pipelines)  in sof_suspend()
221 		tplg_ops->tear_down_all_pipelines(sdev, false);  in sof_suspend()
226 	/* Notify clients not managed by pm framework about core suspend */  in sof_suspend()
234 	/* notify DSP of upcoming power down */  in sof_suspend()
235 	if (pm_ops && pm_ops->ctx_save) {  in sof_suspend()
236 		ret = pm_ops->ctx_save(sdev);  in sof_suspend()
237 		if (ret == -EBUSY || ret == -EAGAIN) {  in sof_suspend()
239 			 * runtime PM has logic to handle -EBUSY/-EAGAIN so  in sof_suspend()
242 			dev_err(sdev->dev, "ctx_save IPC error during suspend: %d\n", ret);  in sof_suspend()
245 			/* FW in unexpected state, continue to power down */  in sof_suspend()
246 			dev_warn(sdev->dev, "ctx_save IPC error: %d, proceeding with suspend\n",  in sof_suspend()
254 	if (sdev->fw_state == SOF_FW_BOOT_NOT_STARTED)  in sof_suspend()
257 	/* platform-specific suspend */  in sof_suspend()
263 		dev_err(sdev->dev,  in sof_suspend()
264 			"error: failed to power down DSP during suspend %d\n",  in sof_suspend()
273 	sdev->enabled_cores_mask = 0;  in sof_suspend()
280 	const struct sof_ipc_pm_ops *pm_ops = sdev->ipc->ops->pm;  in snd_sof_dsp_power_down_notify()
282 	/* Notify DSP of upcoming power down */  in snd_sof_dsp_power_down_notify()
283 	if (sof_ops(sdev)->remove && pm_ops && pm_ops->ctx_save)  in snd_sof_dsp_power_down_notify()
284 		return pm_ops->ctx_save(sdev);  in snd_sof_dsp_power_down_notify()
324 	const struct sof_dev_desc *desc = sdev->pdata->desc;  in snd_sof_prepare()
327 	sdev->system_suspend_target = SOF_SUSPEND_S3;  in snd_sof_prepare()
333 	if (sdev->fw_state == SOF_FW_CRASHED ||  in snd_sof_prepare()
334 	    sdev->fw_state == SOF_FW_BOOT_FAILED)  in snd_sof_prepare()
337 	if (!desc->use_acpi_target_states)  in snd_sof_prepare()
343 		sdev->system_suspend_target = SOF_SUSPEND_S0IX;  in snd_sof_prepare()
348 		sdev->system_suspend_target = SOF_SUSPEND_S3;  in snd_sof_prepare()
351 		sdev->system_suspend_target = SOF_SUSPEND_S4;  in snd_sof_prepare()
354 		sdev->system_suspend_target = SOF_SUSPEND_S5;  in snd_sof_prepare()
369 	sdev->system_suspend_target = SOF_SUSPEND_NONE;  in snd_sof_complete()