Merge Linus master into drm-next

The merge is clean, but the arm build fails afterwards,
due to API changes in the regulator tree.

I've included the patch into the merge to fix the build.

Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 334 insertions, 104 deletions

diff --git a/drivers/scsi/aacraid/src.c b/drivers/scsi/aacraid/src.c
index 9c65aed26212..4596e9dd757c 100644
--- a/drivers/scsi/aacraid/src.c
+++ b/drivers/scsi/aacraid/src.c
@@ -44,98 +44,128 @@
 
 #include "aacraid.h"
 
-static irqreturn_t aac_src_intr_message(int irq, void *dev_id)
+static int aac_src_get_sync_status(struct aac_dev *dev);
+
+irqreturn_t aac_src_intr_message(int irq, void *dev_id)
 {
-	struct aac_dev *dev = dev_id;
+	struct aac_msix_ctx *ctx;
+	struct aac_dev *dev;
 	unsigned long bellbits, bellbits_shifted;
-	int our_interrupt = 0;
-	int isFastResponse;
+	int vector_no;
+	int isFastResponse, mode;
 	u32 index, handle;
 
-	bellbits = src_readl(dev, MUnit.ODR_R);
-	if (bellbits & PmDoorBellResponseSent) {
-		bellbits = PmDoorBellResponseSent;
-		/* handle async. status */
-		src_writel(dev, MUnit.ODR_C, bellbits);
-		src_readl(dev, MUnit.ODR_C);
-		our_interrupt = 1;
-		index = dev->host_rrq_idx;
-		for (;;) {
-			isFastResponse = 0;
-			/* remove toggle bit (31) */
-			handle = le32_to_cpu(dev->host_rrq[index]) & 0x7fffffff;
-			/* check fast response bit (30) */
-			if (handle & 0x40000000)
-				isFastResponse = 1;
-			handle &= 0x0000ffff;
-			if (handle == 0)
-				break;
-
-			aac_intr_normal(dev, handle-1, 0, isFastResponse, NULL);
-
-			dev->host_rrq[index++] = 0;
-			if (index == dev->scsi_host_ptr->can_queue +
-						AAC_NUM_MGT_FIB)
-				index = 0;
-			dev->host_rrq_idx = index;
+	ctx = (struct aac_msix_ctx *)dev_id;
+	dev = ctx->dev;
+	vector_no = ctx->vector_no;
+
+	if (dev->msi_enabled) {
+		mode = AAC_INT_MODE_MSI;
+		if (vector_no == 0) {
+			bellbits = src_readl(dev, MUnit.ODR_MSI);
+			if (bellbits & 0x40000)
+				mode |= AAC_INT_MODE_AIF;
+			if (bellbits & 0x1000)
+				mode |= AAC_INT_MODE_SYNC;
 		}
 	} else {
-		bellbits_shifted = (bellbits >> SRC_ODR_SHIFT);
-		if (bellbits_shifted & DoorBellAifPending) {
+		mode = AAC_INT_MODE_INTX;
+		bellbits = src_readl(dev, MUnit.ODR_R);
+		if (bellbits & PmDoorBellResponseSent) {
+			bellbits = PmDoorBellResponseSent;
+			src_writel(dev, MUnit.ODR_C, bellbits);
+			src_readl(dev, MUnit.ODR_C);
+		} else {
+			bellbits_shifted = (bellbits >> SRC_ODR_SHIFT);
 			src_writel(dev, MUnit.ODR_C, bellbits);
 			src_readl(dev, MUnit.ODR_C);
-			our_interrupt = 1;
-			/* handle AIF */
-			aac_intr_normal(dev, 0, 2, 0, NULL);
-		} else if (bellbits_shifted & OUTBOUNDDOORBELL_0) {
-			unsigned long sflags;
-			struct list_head *entry;
-			int send_it = 0;
-			extern int aac_sync_mode;
 
+			if (bellbits_shifted & DoorBellAifPending)
+				mode |= AAC_INT_MODE_AIF;
+			else if (bellbits_shifted & OUTBOUNDDOORBELL_0)
+				mode |= AAC_INT_MODE_SYNC;
+		}
+	}
+
+	if (mode & AAC_INT_MODE_SYNC) {
+		unsigned long sflags;
+		struct list_head *entry;
+		int send_it = 0;
+		extern int aac_sync_mode;
+
+		if (!aac_sync_mode && !dev->msi_enabled) {
 			src_writel(dev, MUnit.ODR_C, bellbits);
 			src_readl(dev, MUnit.ODR_C);
+		}
 
-			if (!aac_sync_mode) {
-				src_writel(dev, MUnit.ODR_C, bellbits);
-				src_readl(dev, MUnit.ODR_C);
-				our_interrupt = 1;
+		if (dev->sync_fib) {
+			if (dev->sync_fib->callback)
+				dev->sync_fib->callback(dev->sync_fib->callback_data,
+					dev->sync_fib);
+			spin_lock_irqsave(&dev->sync_fib->event_lock, sflags);
+			if (dev->sync_fib->flags & FIB_CONTEXT_FLAG_WAIT) {
+				dev->management_fib_count--;
+				up(&dev->sync_fib->event_wait);
 			}
-
-			if (dev->sync_fib) {
-				our_interrupt = 1;
-				if (dev->sync_fib->callback)
-					dev->sync_fib->callback(dev->sync_fib->callback_data,
-						dev->sync_fib);
-				spin_lock_irqsave(&dev->sync_fib->event_lock, sflags);
-				if (dev->sync_fib->flags & FIB_CONTEXT_FLAG_WAIT) {
-					dev->management_fib_count--;
-					up(&dev->sync_fib->event_wait);
-				}
-				spin_unlock_irqrestore(&dev->sync_fib->event_lock, sflags);
-				spin_lock_irqsave(&dev->sync_lock, sflags);
-				if (!list_empty(&dev->sync_fib_list)) {
-					entry = dev->sync_fib_list.next;
-					dev->sync_fib = list_entry(entry, struct fib, fiblink);
-					list_del(entry);
-					send_it = 1;
-				} else {
-					dev->sync_fib = NULL;
-				}
-				spin_unlock_irqrestore(&dev->sync_lock, sflags);
-				if (send_it) {
-					aac_adapter_sync_cmd(dev, SEND_SYNCHRONOUS_FIB,
-						(u32)dev->sync_fib->hw_fib_pa, 0, 0, 0, 0, 0,
-						NULL, NULL, NULL, NULL, NULL);
-				}
+			spin_unlock_irqrestore(&dev->sync_fib->event_lock,
+						sflags);
+			spin_lock_irqsave(&dev->sync_lock, sflags);
+			if (!list_empty(&dev->sync_fib_list)) {
+				entry = dev->sync_fib_list.next;
+				dev->sync_fib = list_entry(entry,
+							   struct fib,
+							   fiblink);
+				list_del(entry);
+				send_it = 1;
+			} else {
+				dev->sync_fib = NULL;
+			}
+			spin_unlock_irqrestore(&dev->sync_lock, sflags);
+			if (send_it) {
+				aac_adapter_sync_cmd(dev, SEND_SYNCHRONOUS_FIB,
+					(u32)dev->sync_fib->hw_fib_pa,
+					0, 0, 0, 0, 0,
+					NULL, NULL, NULL, NULL, NULL);
 			}
 		}
+		if (!dev->msi_enabled)
+			mode = 0;
+
+	}
+
+	if (mode & AAC_INT_MODE_AIF) {
+		/* handle AIF */
+		aac_intr_normal(dev, 0, 2, 0, NULL);
+		if (dev->msi_enabled)
+			aac_src_access_devreg(dev, AAC_CLEAR_AIF_BIT);
+		mode = 0;
 	}
 
-	if (our_interrupt) {
-		return IRQ_HANDLED;
+	if (mode) {
+		index = dev->host_rrq_idx[vector_no];
+
+		for (;;) {
+			isFastResponse = 0;
+			/* remove toggle bit (31) */
+			handle = (dev->host_rrq[index] & 0x7fffffff);
+			/* check fast response bit (30) */
+			if (handle & 0x40000000)
+				isFastResponse = 1;
+			handle &= 0x0000ffff;
+			if (handle == 0)
+				break;
+			if (dev->msi_enabled && dev->max_msix > 1)
+				atomic_dec(&dev->rrq_outstanding[vector_no]);
+			aac_intr_normal(dev, handle-1, 0, isFastResponse, NULL);
+			dev->host_rrq[index++] = 0;
+			if (index == (vector_no + 1) * dev->vector_cap)
+				index = vector_no * dev->vector_cap;
+			dev->host_rrq_idx[vector_no] = index;
+		}
+		mode = 0;
 	}
-	return IRQ_NONE;
+
+	return IRQ_HANDLED;
 }
 
 /**
@@ -155,7 +185,7 @@ static void aac_src_disable_interrupt(struct aac_dev *dev)
 
 static void aac_src_enable_interrupt_message(struct aac_dev *dev)
 {
-	src_writel(dev, MUnit.OIMR, dev->OIMR = 0xfffffff8);
+	aac_src_access_devreg(dev, AAC_ENABLE_INTERRUPT);
 }
 
 /**
@@ -174,6 +204,7 @@ static int src_sync_cmd(struct aac_dev *dev, u32 command,
 	u32 *status, u32 * r1, u32 * r2, u32 * r3, u32 * r4)
 {
 	unsigned long start;
+	unsigned long delay;
 	int ok;
 
 	/*
@@ -191,7 +222,10 @@ static int src_sync_cmd(struct aac_dev *dev, u32 command,
 	/*
 	 *	Clear the synch command doorbell to start on a clean slate.
 	 */
-	src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
+	if (!dev->msi_enabled)
+		src_writel(dev,
+			   MUnit.ODR_C,
+			   OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
 
 	/*
 	 *	Disable doorbell interrupts
@@ -213,19 +247,29 @@ static int src_sync_cmd(struct aac_dev *dev, u32 command,
 		ok = 0;
 		start = jiffies;
 
-		/*
-		 *	Wait up to 5 minutes
-		 */
-		while (time_before(jiffies, start+300*HZ)) {
+		if (command == IOP_RESET_ALWAYS) {
+			/* Wait up to 10 sec */
+			delay = 10*HZ;
+		} else {
+			/* Wait up to 5 minutes */
+			delay = 300*HZ;
+		}
+		while (time_before(jiffies, start+delay)) {
 			udelay(5);	/* Delay 5 microseconds to let Mon960 get info. */
 			/*
 			 *	Mon960 will set doorbell0 bit when it has completed the command.
 			 */
-			if ((src_readl(dev, MUnit.ODR_R) >> SRC_ODR_SHIFT) & OUTBOUNDDOORBELL_0) {
+			if (aac_src_get_sync_status(dev) & OUTBOUNDDOORBELL_0) {
 				/*
 				 *	Clear the doorbell.
 				 */
-				src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
+				if (dev->msi_enabled)
+					aac_src_access_devreg(dev,
+						AAC_CLEAR_SYNC_BIT);
+				else
+					src_writel(dev,
+						MUnit.ODR_C,
+						OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
 				ok = 1;
 				break;
 			}
@@ -254,11 +298,16 @@ static int src_sync_cmd(struct aac_dev *dev, u32 command,
 			*r3 = readl(&dev->IndexRegs->Mailbox[3]);
 		if (r4)
 			*r4 = readl(&dev->IndexRegs->Mailbox[4]);
-
+		if (command == GET_COMM_PREFERRED_SETTINGS)
+			dev->max_msix =
+				readl(&dev->IndexRegs->Mailbox[5]) & 0xFFFF;
 		/*
 		 *	Clear the synch command doorbell.
 		 */
-		src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
+		if (!dev->msi_enabled)
+			src_writel(dev,
+				MUnit.ODR_C,
+				OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
 	}
 
 	/*
@@ -335,9 +384,14 @@ static void aac_src_notify_adapter(struct aac_dev *dev, u32 event)
 static void aac_src_start_adapter(struct aac_dev *dev)
 {
 	struct aac_init *init;
+	int i;
 
 	 /* reset host_rrq_idx first */
-	dev->host_rrq_idx = 0;
+	for (i = 0; i < dev->max_msix; i++) {
+		dev->host_rrq_idx[i] = i * dev->vector_cap;
+		atomic_set(&dev->rrq_outstanding[i], 0);
+	}
+	dev->fibs_pushed_no = 0;
 
 	init = dev->init;
 	init->HostElapsedSeconds = cpu_to_le32(get_seconds());
@@ -390,15 +444,39 @@ static int aac_src_deliver_message(struct fib *fib)
 {
 	struct aac_dev *dev = fib->dev;
 	struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue];
-	unsigned long qflags;
 	u32 fibsize;
 	dma_addr_t address;
 	struct aac_fib_xporthdr *pFibX;
 	u16 hdr_size = le16_to_cpu(fib->hw_fib_va->header.Size);
 
-	spin_lock_irqsave(q->lock, qflags);
-	q->numpending++;
-	spin_unlock_irqrestore(q->lock, qflags);
+	atomic_inc(&q->numpending);
+
+	if (dev->msi_enabled && fib->hw_fib_va->header.Command != AifRequest &&
+	    dev->max_msix > 1) {
+		u_int16_t vector_no, first_choice = 0xffff;
+
+		vector_no = dev->fibs_pushed_no % dev->max_msix;
+		do {
+			vector_no += 1;
+			if (vector_no == dev->max_msix)
+				vector_no = 1;
+			if (atomic_read(&dev->rrq_outstanding[vector_no]) <
+			    dev->vector_cap)
+				break;
+			if (0xffff == first_choice)
+				first_choice = vector_no;
+			else if (vector_no == first_choice)
+				break;
+		} while (1);
+		if (vector_no == first_choice)
+			vector_no = 0;
+		atomic_inc(&dev->rrq_outstanding[vector_no]);
+		if (dev->fibs_pushed_no == 0xffffffff)
+			dev->fibs_pushed_no = 0;
+		else
+			dev->fibs_pushed_no++;
+		fib->hw_fib_va->header.Handle += (vector_no << 16);
+	}
 
 	if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE2) {
 		/* Calculate the amount to the fibsize bits */
@@ -498,15 +576,34 @@ static int aac_src_restart_adapter(struct aac_dev *dev, int bled)
 		if (bled)
 			printk(KERN_ERR "%s%d: adapter kernel panic'd %x.\n",
 				dev->name, dev->id, bled);
+		dev->a_ops.adapter_enable_int = aac_src_disable_interrupt;
 		bled = aac_adapter_sync_cmd(dev, IOP_RESET_ALWAYS,
 			0, 0, 0, 0, 0, 0, &var, &reset_mask, NULL, NULL, NULL);
-			if (bled || (var != 0x00000001))
-				return -EINVAL;
-		if (dev->supplement_adapter_info.SupportedOptions2 &
-			AAC_OPTION_DOORBELL_RESET) {
-			src_writel(dev, MUnit.IDR, reset_mask);
+		if ((bled || (var != 0x00000001)) &&
+		    !dev->doorbell_mask)
+			return -EINVAL;
+		else if (dev->doorbell_mask) {
+			reset_mask = dev->doorbell_mask;
+			bled = 0;
+			var = 0x00000001;
+		}
+
+		if ((dev->pdev->device == PMC_DEVICE_S7 ||
+		    dev->pdev->device == PMC_DEVICE_S8 ||
+		    dev->pdev->device == PMC_DEVICE_S9) && dev->msi_enabled) {
+			aac_src_access_devreg(dev, AAC_ENABLE_INTX);
+			dev->msi_enabled = 0;
 			msleep(5000); /* Delay 5 seconds */
 		}
+
+		if (!bled && (dev->supplement_adapter_info.SupportedOptions2 &
+		    AAC_OPTION_DOORBELL_RESET)) {
+			src_writel(dev, MUnit.IDR, reset_mask);
+			ssleep(45);
+		} else {
+			src_writel(dev, MUnit.IDR, 0x100);
+			ssleep(45);
+		}
 	}
 
 	if (src_readl(dev, MUnit.OMR) & KERNEL_PANIC)
@@ -527,7 +624,6 @@ int aac_src_select_comm(struct aac_dev *dev, int comm)
 {
 	switch (comm) {
 	case AAC_COMM_MESSAGE:
-		dev->a_ops.adapter_enable_int = aac_src_enable_interrupt_message;
 		dev->a_ops.adapter_intr = aac_src_intr_message;
 		dev->a_ops.adapter_deliver = aac_src_deliver_message;
 		break;
@@ -625,6 +721,7 @@ int aac_src_init(struct aac_dev *dev)
 	 */
 	dev->a_ops.adapter_interrupt = aac_src_interrupt_adapter;
 	dev->a_ops.adapter_disable_int = aac_src_disable_interrupt;
+	dev->a_ops.adapter_enable_int = aac_src_disable_interrupt;
 	dev->a_ops.adapter_notify = aac_src_notify_adapter;
 	dev->a_ops.adapter_sync_cmd = src_sync_cmd;
 	dev->a_ops.adapter_check_health = aac_src_check_health;
@@ -646,8 +743,11 @@ int aac_src_init(struct aac_dev *dev)
 
 	dev->msi = aac_msi && !pci_enable_msi(dev->pdev);
 
+	dev->aac_msix[0].vector_no = 0;
+	dev->aac_msix[0].dev = dev;
+
 	if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
-			IRQF_SHARED, "aacraid", dev) < 0) {
+			IRQF_SHARED, "aacraid", &(dev->aac_msix[0]))  < 0) {
 
 		if (dev->msi)
 			pci_disable_msi(dev->pdev);
@@ -659,6 +759,7 @@ int aac_src_init(struct aac_dev *dev)
 	dev->dbg_base = pci_resource_start(dev->pdev, 2);
 	dev->dbg_base_mapped = dev->regs.src.bar1;
 	dev->dbg_size = AAC_MIN_SRC_BAR1_SIZE;
+	dev->a_ops.adapter_enable_int = aac_src_enable_interrupt_message;
 
 	aac_adapter_enable_int(dev);
 
@@ -688,7 +789,9 @@ int aac_srcv_init(struct aac_dev *dev)
 	unsigned long status;
 	int restart = 0;
 	int instance = dev->id;
+	int i, j;
 	const char *name = dev->name;
+	int cpu;
 
 	dev->a_ops.adapter_ioremap = aac_srcv_ioremap;
 	dev->a_ops.adapter_comm = aac_src_select_comm;
@@ -784,6 +887,7 @@ int aac_srcv_init(struct aac_dev *dev)
 	 */
 	dev->a_ops.adapter_interrupt = aac_src_interrupt_adapter;
 	dev->a_ops.adapter_disable_int = aac_src_disable_interrupt;
+	dev->a_ops.adapter_enable_int = aac_src_disable_interrupt;
 	dev->a_ops.adapter_notify = aac_src_notify_adapter;
 	dev->a_ops.adapter_sync_cmd = src_sync_cmd;
 	dev->a_ops.adapter_check_health = aac_src_check_health;
@@ -802,18 +906,54 @@ int aac_srcv_init(struct aac_dev *dev)
 		goto error_iounmap;
 	if (dev->comm_interface != AAC_COMM_MESSAGE_TYPE2)
 		goto error_iounmap;
-	dev->msi = aac_msi && !pci_enable_msi(dev->pdev);
-	if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
-		IRQF_SHARED, "aacraid", dev) < 0) {
-		if (dev->msi)
-			pci_disable_msi(dev->pdev);
-		printk(KERN_ERR "%s%d: Interrupt unavailable.\n",
-			name, instance);
-		goto error_iounmap;
+	if (dev->msi_enabled)
+		aac_src_access_devreg(dev, AAC_ENABLE_MSIX);
+	if (!dev->sync_mode && dev->msi_enabled && dev->max_msix > 1) {
+		cpu = cpumask_first(cpu_online_mask);
+		for (i = 0; i < dev->max_msix; i++) {
+			dev->aac_msix[i].vector_no = i;
+			dev->aac_msix[i].dev = dev;
+
+			if (request_irq(dev->msixentry[i].vector,
+					dev->a_ops.adapter_intr,
+					0,
+					"aacraid",
+					&(dev->aac_msix[i]))) {
+				printk(KERN_ERR "%s%d: Failed to register IRQ for vector %d.\n",
+						name, instance, i);
+				for (j = 0 ; j < i ; j++)
+					free_irq(dev->msixentry[j].vector,
+						 &(dev->aac_msix[j]));
+				pci_disable_msix(dev->pdev);
+				goto error_iounmap;
+			}
+			if (irq_set_affinity_hint(
+			   dev->msixentry[i].vector,
+			   get_cpu_mask(cpu))) {
+				printk(KERN_ERR "%s%d: Failed to set IRQ affinity for cpu %d\n",
+						name, instance, cpu);
+			}
+			cpu = cpumask_next(cpu, cpu_online_mask);
+		}
+	} else {
+		dev->aac_msix[0].vector_no = 0;
+		dev->aac_msix[0].dev = dev;
+
+		if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
+				IRQF_SHARED,
+				"aacraid",
+				&(dev->aac_msix[0])) < 0) {
+			if (dev->msi)
+				pci_disable_msi(dev->pdev);
+			printk(KERN_ERR "%s%d: Interrupt unavailable.\n",
+					name, instance);
+			goto error_iounmap;
+		}
 	}
 	dev->dbg_base = dev->base_start;
 	dev->dbg_base_mapped = dev->base;
 	dev->dbg_size = dev->base_size;
+	dev->a_ops.adapter_enable_int = aac_src_enable_interrupt_message;
 
 	aac_adapter_enable_int(dev);
 
@@ -831,3 +971,93 @@ error_iounmap:
 	return -1;
 }
 
+void aac_src_access_devreg(struct aac_dev *dev, int mode)
+{
+	u_int32_t val;
+
+	switch (mode) {
+	case AAC_ENABLE_INTERRUPT:
+		src_writel(dev,
+			   MUnit.OIMR,
+			   dev->OIMR = (dev->msi_enabled ?
+					AAC_INT_ENABLE_TYPE1_MSIX :
+					AAC_INT_ENABLE_TYPE1_INTX));
+		break;
+
+	case AAC_DISABLE_INTERRUPT:
+		src_writel(dev,
+			   MUnit.OIMR,
+			   dev->OIMR = AAC_INT_DISABLE_ALL);
+		break;
+
+	case AAC_ENABLE_MSIX:
+		/* set bit 6 */
+		val = src_readl(dev, MUnit.IDR);
+		val |= 0x40;
+		src_writel(dev,  MUnit.IDR, val);
+		src_readl(dev, MUnit.IDR);
+		/* unmask int. */
+		val = PMC_ALL_INTERRUPT_BITS;
+		src_writel(dev, MUnit.IOAR, val);
+		val = src_readl(dev, MUnit.OIMR);
+		src_writel(dev,
+			   MUnit.OIMR,
+			   val & (~(PMC_GLOBAL_INT_BIT2 | PMC_GLOBAL_INT_BIT0)));
+		break;
+
+	case AAC_DISABLE_MSIX:
+		/* reset bit 6 */
+		val = src_readl(dev, MUnit.IDR);
+		val &= ~0x40;
+		src_writel(dev, MUnit.IDR, val);
+		src_readl(dev, MUnit.IDR);
+		break;
+
+	case AAC_CLEAR_AIF_BIT:
+		/* set bit 5 */
+		val = src_readl(dev, MUnit.IDR);
+		val |= 0x20;
+		src_writel(dev, MUnit.IDR, val);
+		src_readl(dev, MUnit.IDR);
+		break;
+
+	case AAC_CLEAR_SYNC_BIT:
+		/* set bit 4 */
+		val = src_readl(dev, MUnit.IDR);
+		val |= 0x10;
+		src_writel(dev, MUnit.IDR, val);
+		src_readl(dev, MUnit.IDR);
+		break;
+
+	case AAC_ENABLE_INTX:
+		/* set bit 7 */
+		val = src_readl(dev, MUnit.IDR);
+		val |= 0x80;
+		src_writel(dev, MUnit.IDR, val);
+		src_readl(dev, MUnit.IDR);
+		/* unmask int. */
+		val = PMC_ALL_INTERRUPT_BITS;
+		src_writel(dev, MUnit.IOAR, val);
+		src_readl(dev, MUnit.IOAR);
+		val = src_readl(dev, MUnit.OIMR);
+		src_writel(dev, MUnit.OIMR,
+				val & (~(PMC_GLOBAL_INT_BIT2)));
+		break;
+
+	default:
+		break;
+	}
+}
+
+static int aac_src_get_sync_status(struct aac_dev *dev)
+{
+
+	int val;
+
+	if (dev->msi_enabled)
+		val = src_readl(dev, MUnit.ODR_MSI) & 0x1000 ? 1 : 0;
+	else
+		val = src_readl(dev, MUnit.ODR_R) >> SRC_ODR_SHIFT;
+
+	return val;
+}