1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
12 #include "sof-priv.h"
13 #include "sof-audio.h"
16  * Helper function to determine the target DSP state during
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()
28 		/* DSP should be in D3 if the system is suspending to S3+ */  in snd_sof_dsp_power_target()
30 		/* DSP should be in D3 if the system is suspending to S3 */  in snd_sof_dsp_power_target()
35 		 * Currently, the only criterion for retaining the DSP in D0  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()
78 	u32 old_state = sdev->dsp_power_state.state;  in sof_resume()
81 	/* do nothing if dsp resume callbacks are not set */  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()
88 	/* DSP was never successfully started, nothing to 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()
106 	if (sdev->dspless_mode_selected) {  in sof_resume()
114 	 * low-power D0 substate  in sof_resume()
116 	if (!runtime_resume && sof_ops(sdev)->set_power_state &&  in sof_resume()
121 			dev_warn(sdev->dev,  in sof_resume()
131 		dev_err(sdev->dev,  in sof_resume()
132 			"error: failed to load DSP firmware after resume %d\n",  in sof_resume()
146 		dev_err(sdev->dev,  in sof_resume()
147 			"error: failed to boot DSP firmware after resume %d\n",  in sof_resume()
157 		dev_warn(sdev->dev,  in sof_resume()
163 	if (tplg_ops && tplg_ops->set_up_all_pipelines) {  in sof_resume()
164 		ret = tplg_ops->set_up_all_pipelines(sdev, false);  in sof_resume()
166 			dev_err(sdev->dev, "Failed to restore pipeline after resume %d\n", ret);  in sof_resume()
174 	/* notify DSP of system resume */  in sof_resume()
175 	if (pm_ops && pm_ops->ctx_restore) {  in sof_resume()
176 		ret = pm_ops->ctx_restore(sdev);  in sof_resume()
178 			dev_err(sdev->dev, "ctx_restore IPC error during resume: %d\n", ret);  in sof_resume()
187 		 * possible DSP coredump information.  in sof_resume()
203 	u32 old_state = sdev->dsp_power_state.state;  in sof_suspend()
206 	/* do nothing if dsp suspend callback is not set */  in sof_suspend()
207 	if (!runtime_suspend && !sof_ops(sdev)->suspend)  in sof_suspend()
210 	if (runtime_suspend && !sof_ops(sdev)->runtime_suspend)  in sof_suspend()
213 	/* we need to tear down pipelines only if the DSP hardware is  in sof_suspend()
218 	if (tplg_ops && tplg_ops->tear_down_all_pipelines && (old_state == SOF_DSP_PM_D0))  in sof_suspend()
219 		tplg_ops->tear_down_all_pipelines(sdev, false);  in sof_suspend()
221 	if (sdev->fw_state != SOF_FW_BOOT_COMPLETE)  in sof_suspend()
228 			dev_err(sdev->dev,  in sof_suspend()
243 	/* Skip to platform-specific suspend if DSP is entering D0 */  in sof_suspend()
252 	/* notify DSP of upcoming power down */  in sof_suspend()
253 	if (pm_ops && pm_ops->ctx_save) {  in sof_suspend()
254 		ret = pm_ops->ctx_save(sdev);  in sof_suspend()
255 		if (ret == -EBUSY || ret == -EAGAIN) {  in sof_suspend()
257 			 * runtime PM has logic to handle -EBUSY/-EAGAIN so  in sof_suspend()
260 			dev_err(sdev->dev, "ctx_save IPC error during suspend: %d\n", ret);  in sof_suspend()
264 			dev_warn(sdev->dev, "ctx_save IPC error: %d, proceeding with suspend\n",  in sof_suspend()
271 	/* return if the DSP was not probed successfully */  in sof_suspend()
272 	if (sdev->fw_state == SOF_FW_BOOT_NOT_STARTED)  in sof_suspend()
275 	/* platform-specific suspend */  in sof_suspend()
281 		dev_err(sdev->dev,  in sof_suspend()
282 			"error: failed to power down DSP during suspend %d\n",  in sof_suspend()
285 	/* Do not reset FW state if DSP is in D0 */  in sof_suspend()
289 	/* reset FW state */  in sof_suspend()
291 	sdev->enabled_cores_mask = 0;  in sof_suspend()
300 	/* Notify DSP of upcoming power down */  in snd_sof_dsp_power_down_notify()
301 	if (sof_ops(sdev)->remove && pm_ops && pm_ops->ctx_save)  in snd_sof_dsp_power_down_notify()
302 		return pm_ops->ctx_save(sdev);  in snd_sof_dsp_power_down_notify()
342 	const struct sof_dev_desc *desc = sdev->pdata->desc;  in snd_sof_prepare()
345 	sdev->system_suspend_target = SOF_SUSPEND_S3;  in snd_sof_prepare()
351 	if (sdev->fw_state == SOF_FW_CRASHED ||  in snd_sof_prepare()
352 	    sdev->fw_state == SOF_FW_BOOT_FAILED)  in snd_sof_prepare()
355 	if (!desc->use_acpi_target_states)  in snd_sof_prepare()
361 		sdev->system_suspend_target = SOF_SUSPEND_S0IX;  in snd_sof_prepare()
366 		sdev->system_suspend_target = SOF_SUSPEND_S3;  in snd_sof_prepare()
369 		sdev->system_suspend_target = SOF_SUSPEND_S4;  in snd_sof_prepare()
372 		sdev->system_suspend_target = SOF_SUSPEND_S5;  in snd_sof_prepare()
387 	sdev->system_suspend_target = SOF_SUSPEND_NONE;  in snd_sof_complete()