1 // SPDX-License-Identifier: GPL-2.0-only
3  * skl-sst-dsp.c - SKL SST library generic function
5  * Copyright (C) 2014-15, Intel Corporation.
12 #include "../common/sst-dsp.h"
13 #include "../common/sst-ipc.h"
14 #include "../common/sst-dsp-priv.h"
24 	mutex_lock(&ctx->mutex);  in skl_dsp_set_state_locked()
25 	ctx->sst_state = state;  in skl_dsp_set_state_locked()
26 	mutex_unlock(&ctx->mutex);  in skl_dsp_set_state_locked()
32  * will be reset
36 	struct skl_dev *skl = ctx->thread_context;  in skl_dsp_init_core_state()
39 	skl->cores.state[SKL_DSP_CORE0_ID] = SKL_DSP_RUNNING;  in skl_dsp_init_core_state()
40 	skl->cores.usage_count[SKL_DSP_CORE0_ID] = 1;  in skl_dsp_init_core_state()
42 	for (i = SKL_DSP_CORE0_ID + 1; i < skl->cores.count; i++) {  in skl_dsp_init_core_state()
43 		skl->cores.state[i] = SKL_DSP_RESET;  in skl_dsp_init_core_state()
44 		skl->cores.usage_count[i] = 0;  in skl_dsp_init_core_state()
51 	struct skl_dev *skl = ctx->thread_context;  in skl_dsp_get_enabled_cores()
55 	core_mask = SKL_DSP_CORES_MASK(skl->cores.count);  in skl_dsp_get_enabled_cores()
72 	dev_dbg(ctx->dev, "DSP enabled cores mask = %x\n", en_cores_mask);  in skl_dsp_get_enabled_cores()
93 			"Set reset");  in skl_dsp_core_set_reset_state()
97 		dev_err(ctx->dev, "Set reset state failed: core_mask %x\n",  in skl_dsp_core_set_reset_state()
99 		ret = -EIO;  in skl_dsp_core_set_reset_state()
110 	dev_dbg(ctx->dev, "In %s\n", __func__);  in skl_dsp_core_unset_reset_state()
122 			"Unset reset");  in skl_dsp_core_unset_reset_state()
126 		dev_err(ctx->dev, "Unset reset state failed: core_mask %x\n",  in skl_dsp_core_unset_reset_state()
128 		ret = -EIO;  in skl_dsp_core_unset_reset_state()
147 	dev_dbg(ctx->dev, "DSP core(s) enabled? %d : core_mask %x\n",  in is_skl_dsp_core_enable()
160 	/* set reset state */  in skl_dsp_reset_core()
168 	/* unset reset state */  in skl_dsp_start_core()
174 	dev_dbg(ctx->dev, "unstall/run core: core_mask = %x\n", core_mask);  in skl_dsp_start_core()
180 		dev_err(ctx->dev, "DSP start core failed: core_mask %x\n",  in skl_dsp_start_core()
182 		ret = -EIO;  in skl_dsp_start_core()
208 		dev_err(ctx->dev, "DSP core power up failed: core_mask %x\n",  in skl_dsp_core_power_up()
210 		ret = -EIO;  in skl_dsp_core_power_up()
238 		dev_err(ctx->dev, "dsp core power up failed: core_mask %x\n",  in skl_dsp_enable_core()
252 		dev_err(ctx->dev, "dsp core reset failed: core_mask %x\n",  in skl_dsp_disable_core()
260 		dev_err(ctx->dev, "dsp core power down fail mask %x: %d\n",  in skl_dsp_disable_core()
266 		dev_err(ctx->dev, "dsp core disable fail mask %x: %d\n",  in skl_dsp_disable_core()
268 		ret = -EIO;  in skl_dsp_disable_core()
281 			dev_err(ctx->dev, "dsp core0 reset fail: %d\n", ret);  in skl_dsp_boot()
287 			dev_err(ctx->dev, "dsp core0 start fail: %d\n", ret);  in skl_dsp_boot()
293 			dev_err(ctx->dev, "dsp core0 disable fail: %d\n", ret);  in skl_dsp_boot()
308 	spin_lock(&ctx->spinlock);  in skl_dsp_sst_interrupt()
311 	ctx->intr_status = val;  in skl_dsp_sst_interrupt()
314 		spin_unlock(&ctx->spinlock);  in skl_dsp_sst_interrupt()
328 	spin_unlock(&ctx->spinlock);  in skl_dsp_sst_interrupt()
338 	struct skl_dev *skl = ctx->thread_context;  in skl_dsp_get_core()
341 	if (core_id >= skl->cores.count) {  in skl_dsp_get_core()
342 		dev_err(ctx->dev, "invalid core id: %d\n", core_id);  in skl_dsp_get_core()
343 		return -EINVAL;  in skl_dsp_get_core()
346 	skl->cores.usage_count[core_id]++;  in skl_dsp_get_core()
348 	if (skl->cores.state[core_id] == SKL_DSP_RESET) {  in skl_dsp_get_core()
349 		ret = ctx->fw_ops.set_state_D0(ctx, core_id);  in skl_dsp_get_core()
351 			dev_err(ctx->dev, "unable to get core%d\n", core_id);  in skl_dsp_get_core()
357 	dev_dbg(ctx->dev, "core id %d state %d usage_count %d\n",  in skl_dsp_get_core()
358 			core_id, skl->cores.state[core_id],  in skl_dsp_get_core()
359 			skl->cores.usage_count[core_id]);  in skl_dsp_get_core()
367 	struct skl_dev *skl = ctx->thread_context;  in skl_dsp_put_core()
370 	if (core_id >= skl->cores.count) {  in skl_dsp_put_core()
371 		dev_err(ctx->dev, "invalid core id: %d\n", core_id);  in skl_dsp_put_core()
372 		return -EINVAL;  in skl_dsp_put_core()
375 	if ((--skl->cores.usage_count[core_id] == 0) &&  in skl_dsp_put_core()
376 		(skl->cores.state[core_id] != SKL_DSP_RESET)) {  in skl_dsp_put_core()
377 		ret = ctx->fw_ops.set_state_D3(ctx, core_id);  in skl_dsp_put_core()
379 			dev_err(ctx->dev, "unable to put core %d: %d\n",  in skl_dsp_put_core()
381 			skl->cores.usage_count[core_id]++;  in skl_dsp_put_core()
385 	dev_dbg(ctx->dev, "core id %d state %d usage_count %d\n",  in skl_dsp_put_core()
386 			core_id, skl->cores.state[core_id],  in skl_dsp_put_core()
387 			skl->cores.usage_count[core_id]);  in skl_dsp_put_core()
415 	spin_lock_init(&sst->spinlock);  in skl_dsp_ctx_init()
416 	mutex_init(&sst->mutex);  in skl_dsp_ctx_init()
417 	sst->dev = dev;  in skl_dsp_ctx_init()
418 	sst->sst_dev = sst_dev;  in skl_dsp_ctx_init()
419 	sst->irq = irq;  in skl_dsp_ctx_init()
420 	sst->ops = sst_dev->ops;  in skl_dsp_ctx_init()
421 	sst->thread_context = sst_dev->thread_context;  in skl_dsp_ctx_init()
423 	/* Initialise SST Audio DSP */  in skl_dsp_ctx_init()
424 	if (sst->ops->init) {  in skl_dsp_ctx_init()
425 		ret = sst->ops->init(sst);  in skl_dsp_ctx_init()
435 	struct sst_dsp_device *sst_dev = sst->sst_dev;  in skl_dsp_acquire_irq()
439 	ret = request_threaded_irq(sst->irq, sst->ops->irq_handler,  in skl_dsp_acquire_irq()
440 		sst_dev->thread, IRQF_SHARED, "AudioDSP", sst);  in skl_dsp_acquire_irq()
442 		dev_err(sst->dev, "unable to grab threaded IRQ %d, disabling device\n",  in skl_dsp_acquire_irq()
443 			       sst->irq);  in skl_dsp_acquire_irq()
448 void skl_dsp_free(struct sst_dsp *dsp)  in skl_dsp_free()  argument
450 	skl_ipc_int_disable(dsp);  in skl_dsp_free()
452 	free_irq(dsp->irq, dsp);  in skl_dsp_free()
453 	skl_ipc_op_int_disable(dsp);  in skl_dsp_free()
454 	skl_dsp_disable_core(dsp, SKL_DSP_CORE0_MASK);  in skl_dsp_free()
460 	return (ctx->sst_state == SKL_DSP_RUNNING);  in is_skl_dsp_running()