ASoC: Intel: avs: Refactor IRQ handling

Merge series from Cezary Rojewski <cezary.rojewski@intel.com>:

The existing code can be both improved and simplified. To make this
change easier to manage, first add new implementation and then remove
deadcode in a separate patch.

Simplification achieved with:

- reduce the amount of resources requested by the driver i.e.: IPC and
  CLDMA request_irq() merged into one
- reduce the number of DSP ops from 2 to 1:
  irq_handler/thread() vs dsp_interrupt()
- drop ambiguity around CLDMA interrupt, let skl.c handle that
  explicitly as it is the only user

With that done, switch to the new implementation and remove unused
members. While the change is non-trivial, from functional perspective
status quo is achieved.

sound/soc/intel/avs/apl.c

@@ -8,11 +8,28 @@
 
 #include <linux/devcoredump.h>
 #include <linux/slab.h>
+#include <sound/hdaudio_ext.h>
 #include "avs.h"
 #include "messages.h"
 #include "path.h"
 #include "topology.h"
 
+static irqreturn_t avs_apl_dsp_interrupt(struct avs_dev *adev)
+{
+	u32 adspis = snd_hdac_adsp_readl(adev, AVS_ADSP_REG_ADSPIS);
+	irqreturn_t ret = IRQ_NONE;
+
+	if (adspis == UINT_MAX)
+		return ret;
+
+	if (adspis & AVS_ADSP_ADSPIS_IPC) {
+		avs_skl_ipc_interrupt(adev);
+		ret = IRQ_HANDLED;
+	}
+
+	return ret;
+}
+
 #ifdef CONFIG_DEBUG_FS
 int avs_apl_enable_logs(struct avs_dev *adev, enum avs_log_enable enable, u32 aging_period,
 			u32 fifo_full_period, unsigned long resource_mask, u32 *priorities)
@@ -237,8 +254,7 @@ const struct avs_dsp_ops avs_apl_dsp_ops = {
 	.power = avs_dsp_core_power,
 	.reset = avs_dsp_core_reset,
 	.stall = avs_dsp_core_stall,
-	.irq_handler = avs_irq_handler,
-	.irq_thread = avs_skl_irq_thread,
+	.dsp_interrupt = avs_apl_dsp_interrupt,
 	.int_control = avs_dsp_interrupt_control,
 	.load_basefw = avs_hda_load_basefw,
 	.load_lib = avs_hda_load_library,

sound/soc/intel/avs/avs.h

@@ -46,8 +46,7 @@ struct avs_dsp_ops {
 	int (* const power)(struct avs_dev *, u32, bool);
 	int (* const reset)(struct avs_dev *, u32, bool);
 	int (* const stall)(struct avs_dev *, u32, bool);
-	irqreturn_t (* const irq_handler)(struct avs_dev *);
-	irqreturn_t (* const irq_thread)(struct avs_dev *);
+	irqreturn_t (* const dsp_interrupt)(struct avs_dev *);
 	void (* const int_control)(struct avs_dev *, bool);
 	int (* const load_basefw)(struct avs_dev *, struct firmware *);
 	int (* const load_lib)(struct avs_dev *, struct firmware *, u32);
@@ -245,7 +244,6 @@ struct avs_ipc {
 #define AVS_IPC_RET(ret) \
 	(((ret) <= 0) ? (ret) : -AVS_EIPC)
 
-irqreturn_t avs_irq_handler(struct avs_dev *adev);
 void avs_dsp_process_response(struct avs_dev *adev, u64 header);
 int avs_dsp_send_msg_timeout(struct avs_dev *adev, struct avs_ipc_msg *request,
 			     struct avs_ipc_msg *reply, int timeout, const char *name);
@@ -267,8 +265,8 @@ void avs_ipc_block(struct avs_ipc *ipc);
 int avs_dsp_disable_d0ix(struct avs_dev *adev);
 int avs_dsp_enable_d0ix(struct avs_dev *adev);
 
-irqreturn_t avs_skl_irq_thread(struct avs_dev *adev);
-irqreturn_t avs_cnl_irq_thread(struct avs_dev *adev);
+void avs_skl_ipc_interrupt(struct avs_dev *adev);
+irqreturn_t avs_cnl_dsp_interrupt(struct avs_dev *adev);
 int avs_apl_enable_logs(struct avs_dev *adev, enum avs_log_enable enable, u32 aging_period,
 			u32 fifo_full_period, unsigned long resource_mask, u32 *priorities);
 int avs_icl_enable_logs(struct avs_dev *adev, enum avs_log_enable enable, u32 aging_period,

sound/soc/intel/avs/cldma.c

@@ -248,32 +248,20 @@ void hda_cldma_setup(struct hda_cldma *cl)
 	snd_hdac_stream_writel(cl, CL_SPBFCTL, 1);
 }
 
-static irqreturn_t cldma_irq_handler(int irq, void *dev_id)
+void hda_cldma_interrupt(struct hda_cldma *cl)
 {
-	struct hda_cldma *cl = dev_id;
-	u32 adspis;
-
-	adspis = snd_hdac_adsp_readl(cl, AVS_ADSP_REG_ADSPIS);
-	if (adspis == UINT_MAX)
-		return IRQ_NONE;
-	if (!(adspis & AVS_ADSP_ADSPIS_CLDMA))
-		return IRQ_NONE;
-
-	cl->sd_status = snd_hdac_stream_readb(cl, SD_STS);
-	dev_warn(cl->dev, "%s sd_status: 0x%08x\n", __func__, cl->sd_status);
-
 	/* disable CLDMA interrupt */
 	snd_hdac_adsp_updatel(cl, AVS_ADSP_REG_ADSPIC, AVS_ADSP_ADSPIC_CLDMA, 0);
 
-	complete(&cl->completion);
+	cl->sd_status = snd_hdac_stream_readb(cl, SD_STS);
+	dev_dbg(cl->dev, "%s sd_status: 0x%08x\n", __func__, cl->sd_status);
 
-	return IRQ_HANDLED;
+	complete(&cl->completion);
 }
 
 int hda_cldma_init(struct hda_cldma *cl, struct hdac_bus *bus, void __iomem *dsp_ba,
 		   unsigned int buffer_size)
 {
-	struct pci_dev *pci = to_pci_dev(bus->dev);
 	int ret;
 
 	ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV_SG, bus->dev, buffer_size, &cl->dmab_data);
@@ -281,8 +269,10 @@ int hda_cldma_init(struct hda_cldma *cl, struct hdac_bus *bus, void __iomem *dsp
 		return ret;
 
 	ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, bus->dev, BDL_SIZE, &cl->dmab_bdl);
-	if (ret < 0)
-		goto alloc_err;
+	if (ret < 0) {
+		snd_dma_free_pages(&cl->dmab_data);
+		return ret;
+	}
 
 	cl->dev = bus->dev;
 	cl->bus = bus;
@@ -290,27 +280,11 @@ int hda_cldma_init(struct hda_cldma *cl, struct hdac_bus *bus, void __iomem *dsp
 	cl->buffer_size = buffer_size;
 	cl->sd_addr = dsp_ba + AZX_CL_SD_BASE;
 
-	ret = pci_request_irq(pci, 0, cldma_irq_handler, NULL, cl, "CLDMA");
-	if (ret < 0) {
-		dev_err(cl->dev, "Failed to request CLDMA IRQ handler: %d\n", ret);
-		goto req_err;
-	}
-
 	return 0;
-
-req_err:
-	snd_dma_free_pages(&cl->dmab_bdl);
-alloc_err:
-	snd_dma_free_pages(&cl->dmab_data);
-
-	return ret;
 }
 
 void hda_cldma_free(struct hda_cldma *cl)
 {
-	struct pci_dev *pci = to_pci_dev(cl->dev);
-
-	pci_free_irq(pci, 0, cl);
 	snd_dma_free_pages(&cl->dmab_data);
 	snd_dma_free_pages(&cl->dmab_bdl);
 }

sound/soc/intel/avs/cldma.h

@@ -24,6 +24,7 @@ int hda_cldma_reset(struct hda_cldma *cl);
 
 void hda_cldma_set_data(struct hda_cldma *cl, void *data, unsigned int size);
 void hda_cldma_setup(struct hda_cldma *cl);
+void hda_cldma_interrupt(struct hda_cldma *cl);
 int hda_cldma_init(struct hda_cldma *cl, struct hdac_bus *bus, void __iomem *dsp_ba,
 		   unsigned int buffer_size);
 void hda_cldma_free(struct hda_cldma *cl);

sound/soc/intel/avs/cnl.c

@@ -10,44 +10,73 @@
 #include "avs.h"
 #include "messages.h"
 
-irqreturn_t avs_cnl_irq_thread(struct avs_dev *adev)
+static void avs_cnl_ipc_interrupt(struct avs_dev *adev)
 {
-	union avs_reply_msg msg;
-	u32 hipctdr, hipctdd, hipctda;
-
-	hipctdr = snd_hdac_adsp_readl(adev, CNL_ADSP_REG_HIPCTDR);
-	hipctdd = snd_hdac_adsp_readl(adev, CNL_ADSP_REG_HIPCTDD);
-
-	/* Ensure DSP sent new response to process. */
-	if (!(hipctdr & CNL_ADSP_HIPCTDR_BUSY))
-		return IRQ_NONE;
-
-	msg.primary = hipctdr;
-	msg.ext.val = hipctdd;
-	avs_dsp_process_response(adev, msg.val);
-
-	/* Tell DSP we accepted its message. */
-	snd_hdac_adsp_updatel(adev, CNL_ADSP_REG_HIPCTDR,
-			      CNL_ADSP_HIPCTDR_BUSY, CNL_ADSP_HIPCTDR_BUSY);
-	/* Ack this response. */
-	snd_hdac_adsp_updatel(adev, CNL_ADSP_REG_HIPCTDA,
-			      CNL_ADSP_HIPCTDA_DONE, CNL_ADSP_HIPCTDA_DONE);
-	/* HW might have been clock gated, give some time for change to propagate. */
-	snd_hdac_adsp_readl_poll(adev, CNL_ADSP_REG_HIPCTDA, hipctda,
-				 !(hipctda & CNL_ADSP_HIPCTDA_DONE), 10, 1000);
-	/* Unmask busy interrupt. */
-	snd_hdac_adsp_updatel(adev, CNL_ADSP_REG_HIPCCTL,
-			      AVS_ADSP_HIPCCTL_BUSY, AVS_ADSP_HIPCCTL_BUSY);
-
-	return IRQ_HANDLED;
+	const struct avs_spec *spec = adev->spec;
+	u32 hipc_ack, hipc_rsp;
+
+	snd_hdac_adsp_updatel(adev, spec->hipc->ctl_offset,
+			      AVS_ADSP_HIPCCTL_DONE | AVS_ADSP_HIPCCTL_BUSY, 0);
+
+	hipc_ack = snd_hdac_adsp_readl(adev, spec->hipc->ack_offset);
+	hipc_rsp = snd_hdac_adsp_readl(adev, spec->hipc->rsp_offset);
+
+	/* DSP acked host's request. */
+	if (hipc_ack & spec->hipc->ack_done_mask) {
+		complete(&adev->ipc->done_completion);
+
+		/* Tell DSP it has our attention. */
+		snd_hdac_adsp_updatel(adev, spec->hipc->ack_offset, spec->hipc->ack_done_mask,
+				      spec->hipc->ack_done_mask);
+	}
+
+	/* DSP sent new response to process. */
+	if (hipc_rsp & spec->hipc->rsp_busy_mask) {
+		union avs_reply_msg msg;
+		u32 hipctda;
+
+		msg.primary = snd_hdac_adsp_readl(adev, CNL_ADSP_REG_HIPCTDR);
+		msg.ext.val = snd_hdac_adsp_readl(adev, CNL_ADSP_REG_HIPCTDD);
+
+		avs_dsp_process_response(adev, msg.val);
+
+		/* Tell DSP we accepted its message. */
+		snd_hdac_adsp_updatel(adev, CNL_ADSP_REG_HIPCTDR,
+				      CNL_ADSP_HIPCTDR_BUSY, CNL_ADSP_HIPCTDR_BUSY);
+		/* Ack this response. */
+		snd_hdac_adsp_updatel(adev, CNL_ADSP_REG_HIPCTDA,
+				      CNL_ADSP_HIPCTDA_DONE, CNL_ADSP_HIPCTDA_DONE);
+		/* HW might have been clock gated, give some time for change to propagate. */
+		snd_hdac_adsp_readl_poll(adev, CNL_ADSP_REG_HIPCTDA, hipctda,
+					 !(hipctda & CNL_ADSP_HIPCTDA_DONE), 10, 1000);
+	}
+
+	snd_hdac_adsp_updatel(adev, spec->hipc->ctl_offset,
+			      AVS_ADSP_HIPCCTL_DONE | AVS_ADSP_HIPCCTL_BUSY,
+			      AVS_ADSP_HIPCCTL_DONE | AVS_ADSP_HIPCCTL_BUSY);
+}
+
+irqreturn_t avs_cnl_dsp_interrupt(struct avs_dev *adev)
+{
+	u32 adspis = snd_hdac_adsp_readl(adev, AVS_ADSP_REG_ADSPIS);
+	irqreturn_t ret = IRQ_NONE;
+
+	if (adspis == UINT_MAX)
+		return ret;
+
+	if (adspis & AVS_ADSP_ADSPIS_IPC) {
+		avs_cnl_ipc_interrupt(adev);
+		ret = IRQ_HANDLED;
+	}
+
+	return ret;
 }
 
 const struct avs_dsp_ops avs_cnl_dsp_ops = {
 	.power = avs_dsp_core_power,
 	.reset = avs_dsp_core_reset,
 	.stall = avs_dsp_core_stall,
-	.irq_handler = avs_irq_handler,
-	.irq_thread = avs_cnl_irq_thread,
+	.dsp_interrupt = avs_cnl_dsp_interrupt,
 	.int_control = avs_dsp_interrupt_control,
 	.load_basefw = avs_hda_load_basefw,
 	.load_lib = avs_hda_load_library,

sound/soc/intel/avs/core.c

@@ -257,67 +257,55 @@ static void hdac_update_stream(struct hdac_bus *bus, struct hdac_stream *stream)
 	}
 }
 
-static irqreturn_t hdac_bus_irq_handler(int irq, void *context)
+static irqreturn_t avs_hda_interrupt(struct hdac_bus *bus)
 {
-	struct hdac_bus *bus = context;
-	u32 mask, int_enable;
+	irqreturn_t ret = IRQ_NONE;
 	u32 status;
-	int ret = IRQ_NONE;
-
-	if (!pm_runtime_active(bus->dev))
-		return ret;
-
-	spin_lock(&bus->reg_lock);
 
 	status = snd_hdac_chip_readl(bus, INTSTS);
-	if (status == 0 || status == UINT_MAX) {
-		spin_unlock(&bus->reg_lock);
-		return ret;
-	}
+	if (snd_hdac_bus_handle_stream_irq(bus, status, hdac_update_stream))
+		ret = IRQ_HANDLED;
 
-	/* clear rirb int */
+	spin_lock_irq(&bus->reg_lock);
+	/* Clear RIRB interrupt. */
 	status = snd_hdac_chip_readb(bus, RIRBSTS);
 	if (status & RIRB_INT_MASK) {
 		if (status & RIRB_INT_RESPONSE)
 			snd_hdac_bus_update_rirb(bus);
 		snd_hdac_chip_writeb(bus, RIRBSTS, RIRB_INT_MASK);
-	}
-
-	mask = (0x1 << bus->num_streams) - 1;
-
-	status = snd_hdac_chip_readl(bus, INTSTS);
-	status &= mask;
-	if (status) {
-		/* Disable stream interrupts; Re-enable in bottom half */
-		int_enable = snd_hdac_chip_readl(bus, INTCTL);
-		snd_hdac_chip_writel(bus, INTCTL, (int_enable & (~mask)));
-		ret = IRQ_WAKE_THREAD;
-	} else {
 		ret = IRQ_HANDLED;
 	}
 
-	spin_unlock(&bus->reg_lock);
+	spin_unlock_irq(&bus->reg_lock);
 	return ret;
 }
 
-static irqreturn_t hdac_bus_irq_thread(int irq, void *context)
+static irqreturn_t avs_hda_irq_handler(int irq, void *dev_id)
+{
+	struct hdac_bus *bus = dev_id;
+	u32 intsts;
+
+	intsts = snd_hdac_chip_readl(bus, INTSTS);
+	if (intsts == UINT_MAX || !(intsts & AZX_INT_GLOBAL_EN))
+		return IRQ_NONE;
+
+	/* Mask GIE, unmasked in irq_thread(). */
+	snd_hdac_chip_updatel(bus, INTCTL, AZX_INT_GLOBAL_EN, 0);
+
+	return IRQ_WAKE_THREAD;
+}
+
+static irqreturn_t avs_hda_irq_thread(int irq, void *dev_id)
 {
-	struct hdac_bus *bus = context;
+	struct hdac_bus *bus = dev_id;
 	u32 status;
-	u32 int_enable;
-	u32 mask;
-	unsigned long flags;
 
 	status = snd_hdac_chip_readl(bus, INTSTS);
+	if (status & ~AZX_INT_GLOBAL_EN)
+		avs_hda_interrupt(bus);
 
-	snd_hdac_bus_handle_stream_irq(bus, status, hdac_update_stream);
-
-	/* Re-enable stream interrupts */
-	mask = (0x1 << bus->num_streams) - 1;
-	spin_lock_irqsave(&bus->reg_lock, flags);
-	int_enable = snd_hdac_chip_readl(bus, INTCTL);
-	snd_hdac_chip_writel(bus, INTCTL, (int_enable | mask));
-	spin_unlock_irqrestore(&bus->reg_lock, flags);
+	/* Unmask GIE, masked in irq_handler(). */
+	snd_hdac_chip_updatel(bus, INTCTL, AZX_INT_GLOBAL_EN, AZX_INT_GLOBAL_EN);
 
 	return IRQ_HANDLED;
 }
@@ -326,14 +314,23 @@ static irqreturn_t avs_dsp_irq_handler(int irq, void *dev_id)
 {
 	struct avs_dev *adev = dev_id;
 
-	return avs_dsp_op(adev, irq_handler);
+	return avs_hda_irq_handler(irq, &adev->base.core);
 }
 
 static irqreturn_t avs_dsp_irq_thread(int irq, void *dev_id)
 {
 	struct avs_dev *adev = dev_id;
+	struct hdac_bus *bus = &adev->base.core;
+	u32 status;
+
+	status = readl(bus->ppcap + AZX_REG_PP_PPSTS);
+	if (status & AZX_PPCTL_PIE)
+		avs_dsp_op(adev, dsp_interrupt);
 
-	return avs_dsp_op(adev, irq_thread);
+	/* Unmask GIE, masked in irq_handler(). */
+	snd_hdac_chip_updatel(bus, INTCTL, AZX_INT_GLOBAL_EN, AZX_INT_GLOBAL_EN);
+
+	return IRQ_HANDLED;
 }
 
 static int avs_hdac_acquire_irq(struct avs_dev *adev)
@@ -349,7 +346,7 @@ static int avs_hdac_acquire_irq(struct avs_dev *adev)
 		return ret;
 	}
 
-	ret = pci_request_irq(pci, 0, hdac_bus_irq_handler, hdac_bus_irq_thread, bus,
+	ret = pci_request_irq(pci, 0, avs_hda_irq_handler, avs_hda_irq_thread, bus,
 			      KBUILD_MODNAME);
 	if (ret < 0) {
 		dev_err(adev->dev, "Failed to request stream IRQ handler: %d\n", ret);
@@ -530,8 +527,6 @@ static void avs_pci_shutdown(struct pci_dev *pci)
 	snd_hdac_bus_stop_chip(bus);
 	snd_hdac_display_power(bus, HDA_CODEC_IDX_CONTROLLER, false);
 
-	if (avs_platattr_test(adev, CLDMA))
-		pci_free_irq(pci, 0, &code_loader);
 	pci_free_irq(pci, 0, adev);
 	pci_free_irq(pci, 0, bus);
 	pci_free_irq_vectors(pci);

sound/soc/intel/avs/icl.c

@@ -188,8 +188,7 @@ const struct avs_dsp_ops avs_icl_dsp_ops = {
 	.power = avs_dsp_core_power,
 	.reset = avs_dsp_core_reset,
 	.stall = avs_dsp_core_stall,
-	.irq_handler = avs_irq_handler,
-	.irq_thread = avs_cnl_irq_thread,
+	.dsp_interrupt = avs_cnl_dsp_interrupt,
 	.int_control = avs_dsp_interrupt_control,
 	.load_basefw = avs_icl_load_basefw,
 	.load_lib = avs_hda_load_library,

sound/soc/intel/avs/ipc.c

@@ -301,54 +301,6 @@ void avs_dsp_process_response(struct avs_dev *adev, u64 header)
 	complete(&ipc->busy_completion);
 }
 
-irqreturn_t avs_irq_handler(struct avs_dev *adev)
-{
-	struct avs_ipc *ipc = adev->ipc;
-	const struct avs_spec *const spec = adev->spec;
-	u32 adspis, hipc_rsp, hipc_ack;
-	irqreturn_t ret = IRQ_NONE;
-
-	adspis = snd_hdac_adsp_readl(adev, AVS_ADSP_REG_ADSPIS);
-	if (adspis == UINT_MAX || !(adspis & AVS_ADSP_ADSPIS_IPC))
-		return ret;
-
-	hipc_ack = snd_hdac_adsp_readl(adev, spec->hipc->ack_offset);
-	hipc_rsp = snd_hdac_adsp_readl(adev, spec->hipc->rsp_offset);
-
-	/* DSP acked host's request */
-	if (hipc_ack & spec->hipc->ack_done_mask) {
-		/*
-		 * As an extra precaution, mask done interrupt. Code executed
-		 * due to complete() found below does not assume any masking.
-		 */
-		snd_hdac_adsp_updatel(adev, spec->hipc->ctl_offset,
-				      AVS_ADSP_HIPCCTL_DONE, 0);
-
-		complete(&ipc->done_completion);
-
-		/* tell DSP it has our attention */
-		snd_hdac_adsp_updatel(adev, spec->hipc->ack_offset,
-				      spec->hipc->ack_done_mask,
-				      spec->hipc->ack_done_mask);
-		/* unmask done interrupt */
-		snd_hdac_adsp_updatel(adev, spec->hipc->ctl_offset,
-				      AVS_ADSP_HIPCCTL_DONE,
-				      AVS_ADSP_HIPCCTL_DONE);
-		ret = IRQ_HANDLED;
-	}
-
-	/* DSP sent new response to process */
-	if (hipc_rsp & spec->hipc->rsp_busy_mask) {
-		/* mask busy interrupt */
-		snd_hdac_adsp_updatel(adev, spec->hipc->ctl_offset,
-				      AVS_ADSP_HIPCCTL_BUSY, 0);
-
-		ret = IRQ_WAKE_THREAD;
-	}
-
-	return ret;
-}
-
 static bool avs_ipc_is_busy(struct avs_ipc *ipc)
 {
 	struct avs_dev *adev = to_avs_dev(ipc->dev);

sound/soc/intel/avs/skl.c

@@ -10,31 +10,67 @@
 #include <linux/slab.h>
 #include <sound/hdaudio_ext.h>
 #include "avs.h"
+#include "cldma.h"
 #include "messages.h"
 
-irqreturn_t avs_skl_irq_thread(struct avs_dev *adev)
+void avs_skl_ipc_interrupt(struct avs_dev *adev)
 {
-	union avs_reply_msg msg;
-	u32 hipct, hipcte;
+	const struct avs_spec *spec = adev->spec;
+	u32 hipc_ack, hipc_rsp;
 
-	hipct = snd_hdac_adsp_readl(adev, SKL_ADSP_REG_HIPCT);
-	hipcte = snd_hdac_adsp_readl(adev, SKL_ADSP_REG_HIPCTE);
+	snd_hdac_adsp_updatel(adev, spec->hipc->ctl_offset,
+			      AVS_ADSP_HIPCCTL_DONE | AVS_ADSP_HIPCCTL_BUSY, 0);
 
-	/* Ensure DSP sent new response to process. */
-	if (!(hipct & SKL_ADSP_HIPCT_BUSY))
-		return IRQ_NONE;
+	hipc_ack = snd_hdac_adsp_readl(adev, spec->hipc->ack_offset);
+	hipc_rsp = snd_hdac_adsp_readl(adev, spec->hipc->rsp_offset);
 
-	msg.primary = hipct;
-	msg.ext.val = hipcte;
-	avs_dsp_process_response(adev, msg.val);
+	/* DSP acked host's request. */
+	if (hipc_ack & spec->hipc->ack_done_mask) {
+		complete(&adev->ipc->done_completion);
 
-	/* Tell DSP we accepted its message. */
-	snd_hdac_adsp_updatel(adev, SKL_ADSP_REG_HIPCT, SKL_ADSP_HIPCT_BUSY, SKL_ADSP_HIPCT_BUSY);
-	/* Unmask busy interrupt. */
-	snd_hdac_adsp_updatel(adev, SKL_ADSP_REG_HIPCCTL, AVS_ADSP_HIPCCTL_BUSY,
-			      AVS_ADSP_HIPCCTL_BUSY);
+		/* Tell DSP it has our attention. */
+		snd_hdac_adsp_updatel(adev, spec->hipc->ack_offset, spec->hipc->ack_done_mask,
+				      spec->hipc->ack_done_mask);
+	}
 
-	return IRQ_HANDLED;
+	/* DSP sent new response to process */
+	if (hipc_rsp & spec->hipc->rsp_busy_mask) {
+		union avs_reply_msg msg;
+
+		msg.primary = snd_hdac_adsp_readl(adev, SKL_ADSP_REG_HIPCT);
+		msg.ext.val = snd_hdac_adsp_readl(adev, SKL_ADSP_REG_HIPCTE);
+
+		avs_dsp_process_response(adev, msg.val);
+
+		/* Tell DSP we accepted its message. */
+		snd_hdac_adsp_updatel(adev, SKL_ADSP_REG_HIPCT, SKL_ADSP_HIPCT_BUSY,
+				      SKL_ADSP_HIPCT_BUSY);
+	}
+
+	snd_hdac_adsp_updatel(adev, spec->hipc->ctl_offset,
+			      AVS_ADSP_HIPCCTL_DONE | AVS_ADSP_HIPCCTL_BUSY,
+			      AVS_ADSP_HIPCCTL_DONE | AVS_ADSP_HIPCCTL_BUSY);
+}
+
+static irqreturn_t avs_skl_dsp_interrupt(struct avs_dev *adev)
+{
+	u32 adspis = snd_hdac_adsp_readl(adev, AVS_ADSP_REG_ADSPIS);
+	irqreturn_t ret = IRQ_NONE;
+
+	if (adspis == UINT_MAX)
+		return ret;
+
+	if (adspis & AVS_ADSP_ADSPIS_CLDMA) {
+		hda_cldma_interrupt(&code_loader);
+		ret = IRQ_HANDLED;
+	}
+
+	if (adspis & AVS_ADSP_ADSPIS_IPC) {
+		avs_skl_ipc_interrupt(adev);
+		ret = IRQ_HANDLED;
+	}
+
+	return ret;
 }
 
 static int __maybe_unused
@@ -128,8 +164,7 @@ const struct avs_dsp_ops avs_skl_dsp_ops = {
 	.power = avs_dsp_core_power,
 	.reset = avs_dsp_core_reset,
 	.stall = avs_dsp_core_stall,
-	.irq_handler = avs_irq_handler,
-	.irq_thread = avs_skl_irq_thread,
+	.dsp_interrupt = avs_skl_dsp_interrupt,
 	.int_control = avs_dsp_interrupt_control,
 	.load_basefw = avs_cldma_load_basefw,
 	.load_lib = avs_cldma_load_library,

sound/soc/intel/avs/tgl.c

@@ -39,8 +39,7 @@ const struct avs_dsp_ops avs_tgl_dsp_ops = {
 	.power = avs_tgl_dsp_core_power,
 	.reset = avs_tgl_dsp_core_reset,
 	.stall = avs_tgl_dsp_core_stall,
-	.irq_handler = avs_irq_handler,
-	.irq_thread = avs_cnl_irq_thread,
+	.dsp_interrupt = avs_cnl_dsp_interrupt,
 	.int_control = avs_dsp_interrupt_control,
 	.load_basefw = avs_icl_load_basefw,
 	.load_lib = avs_hda_load_library,