1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
15  * Hardware interface for audio DSP on Cannonlake.
20 #include "hda-ipc.h"
21 #include "../sof-audio.h"
26 	{"dsp", HDA_DSP_BAR,  0, 0x10000, SOF_DEBUGFS_ACCESS_ALWAYS},
32 irqreturn_t cnl_ipc_irq_thread(int irq, void *context)  in cnl_ipc_irq_thread()  argument
48 	/* reply message from DSP */  in cnl_ipc_irq_thread()
53 		dev_vdbg(sdev->dev,  in cnl_ipc_irq_thread()
62 		spin_lock_irq(&sdev->ipc_lock);  in cnl_ipc_irq_thread()
64 		/* handle immediate reply from DSP core */  in cnl_ipc_irq_thread()
70 		spin_unlock_irq(&sdev->ipc_lock);  in cnl_ipc_irq_thread()
75 	/* new message from DSP */  in cnl_ipc_irq_thread()
80 		dev_vdbg(sdev->dev,  in cnl_ipc_irq_thread()
84 		/* handle messages from DSP */  in cnl_ipc_irq_thread()
101 		dev_dbg_ratelimited(sdev->dev,  in cnl_ipc_irq_thread()
102 				    "nothing to do in IPC IRQ thread\n");  in cnl_ipc_irq_thread()
111 	 * clear busy interrupt to tell dsp controller this  in cnl_ipc_host_done()
119 	 * set done bit to ack dsp the msg has been  in cnl_ipc_host_done()
120 	 * processed and send reply msg to dsp  in cnl_ipc_host_done()
131 	 * set DONE bit - tell DSP we have received the reply msg  in cnl_ipc_dsp_done()
132 	 * from DSP, and processed it, don't send more reply to host  in cnl_ipc_dsp_done()
151 	if (msg->header == (SOF_IPC_GLB_PM_MSG | SOF_IPC_PM_GATE)) {  in cnl_compact_ipc_compress()
152 		pm_gate = msg->msg_data;  in cnl_compact_ipc_compress()
158 		*dd = pm_gate->flags;  in cnl_compact_ipc_compress()
168 	struct sof_intel_hda_dev *hdev = sdev->pdata->hw_pdata;  in cnl_ipc_send_msg()
175 	 * IPC which is used for transitioning the DSP between the  in cnl_ipc_send_msg()
178 	 * that a compact IPC results in the DSP exiting D0I3 without  in cnl_ipc_send_msg()
191 	sof_mailbox_write(sdev, sdev->host_box.offset, msg->msg_data,  in cnl_ipc_send_msg()
192 			  msg->msg_size);  in cnl_ipc_send_msg()
196 	hdr = msg->msg_data;  in cnl_ipc_send_msg()
201 	 * IPCs are sent at a high-rate. mod_delayed_work()  in cnl_ipc_send_msg()
204 	 * CTX_SAVE IPC, which is sent before the DSP enters D3.  in cnl_ipc_send_msg()
206 	if (hdr->cmd != (SOF_IPC_GLB_PM_MSG | SOF_IPC_PM_CTX_SAVE))  in cnl_ipc_send_msg()
207 		mod_delayed_work(system_wq, &hdev->d0i3_work,  in cnl_ipc_send_msg()
228 	dev_err(sdev->dev,  in cnl_ipc_dump()
229 		"error: host status 0x%8.8x dsp status 0x%8.8x mask 0x%8.8x\n",  in cnl_ipc_dump()
297 	/* dsp core power up/down */