1 // SPDX-License-Identifier: GPL-2.0-only
13 #include <linux/io-64-nonatomic-lo-hi.h>
16 #include "sst-dsp.h"
17 #include "sst-dsp-priv.h"
20 #include <trace/events/intel-sst.h>
22 /* Internal generic low-level SST IO functions - can be overidden */
52 	spin_lock_irqsave(&sst->spinlock, flags);  in sst_dsp_shim_write()
53 	sst->ops->write(sst->addr.shim, offset, value);  in sst_dsp_shim_write()
54 	spin_unlock_irqrestore(&sst->spinlock, flags);  in sst_dsp_shim_write()
63 	spin_lock_irqsave(&sst->spinlock, flags);  in sst_dsp_shim_read()
64 	val = sst->ops->read(sst->addr.shim, offset);  in sst_dsp_shim_read()
65 	spin_unlock_irqrestore(&sst->spinlock, flags);  in sst_dsp_shim_read()
73 	sst->ops->write(sst->addr.shim, offset, value);  in sst_dsp_shim_write_unlocked()
79 	return sst->ops->read(sst->addr.shim, offset);  in sst_dsp_shim_read_unlocked()
125 	spin_lock_irqsave(&sst->spinlock, flags);  in sst_dsp_shim_update_bits()
127 	spin_unlock_irqrestore(&sst->spinlock, flags);  in sst_dsp_shim_update_bits()
138 	spin_lock_irqsave(&sst->spinlock, flags);  in sst_dsp_shim_update_bits_forced()
140 	spin_unlock_irqrestore(&sst->spinlock, flags);  in sst_dsp_shim_update_bits_forced()
148 	unsigned long timeout;  in sst_dsp_register_poll()  local
154 	 * Phase 1(first 5ms): min sleep 0.5ms; max sleep 1ms.  in sst_dsp_register_poll()
155 	 * Phase 2:( 5ms to 10ms) : min sleep 0.5ms; max sleep 10ms  in sst_dsp_register_poll()
158 	 * Phase 3: (beyond 10 ms) min sleep 5ms; max sleep 10ms.  in sst_dsp_register_poll()
161 	timeout = jiffies + msecs_to_jiffies(time);  in sst_dsp_register_poll()
163 		&& time_before(jiffies, timeout)) {  in sst_dsp_register_poll()
172 		dev_dbg(ctx->dev, "FW Poll Status: reg=%#x %s successful\n",  in sst_dsp_register_poll()
178 	dev_dbg(ctx->dev, "FW Poll Status: reg=%#x %s timedout\n",  in sst_dsp_register_poll()
180 	return -ETIME;  in sst_dsp_register_poll()
187 	sst->mailbox.in_base = sst->addr.lpe + inbox_offset;  in sst_dsp_mailbox_init()
188 	sst->mailbox.out_base = sst->addr.lpe + outbox_offset;  in sst_dsp_mailbox_init()
189 	sst->mailbox.in_size = inbox_size;  in sst_dsp_mailbox_init()
190 	sst->mailbox.out_size = outbox_size;  in sst_dsp_mailbox_init()
201 	memcpy_toio(sst->mailbox.out_base, message, bytes);  in sst_dsp_outbox_write()
214 	memcpy_fromio(message, sst->mailbox.out_base, bytes);  in sst_dsp_outbox_read()
227 	memcpy_toio(sst->mailbox.in_base, message, bytes);  in sst_dsp_inbox_write()
240 	memcpy_fromio(message, sst->mailbox.in_base, bytes);  in sst_dsp_inbox_read()