[SPARC64]: Kill ino_bucket->pil

And reuse that struct member for virt_irq, which will
be used in future changesets for the implementation of
mapping between real and virtual IRQ numbers.

This nicely kills off a ton of SBUS and PCI controller
PIL assignment code which is no longer necessary.

Signed-off-by: David S. Miller <davem@davemloft.net>

8 files changed, 43 insertions, 381 deletions

diff --git a/arch/sparc64/kernel/devices.c b/arch/sparc64/kernel/devices.c
index 007e8922cd1..0684899d998 100644
--- a/arch/sparc64/kernel/devices.c
+++ b/arch/sparc64/kernel/devices.c
@@ -157,7 +157,7 @@ unsigned int sun4v_vdev_device_interrupt(unsigned int dev_node)
 		return 0;
 	}
 
-	return sun4v_build_irq(sun4v_vdev_devhandle, irq, 5, 0);
+	return sun4v_build_irq(sun4v_vdev_devhandle, irq, 0);
 }
 
 static const char *cpu_mid_prop(void)
diff --git a/arch/sparc64/kernel/irq.c b/arch/sparc64/kernel/irq.c
index ad134bbc151..f2668f2bed9 100644
--- a/arch/sparc64/kernel/irq.c
+++ b/arch/sparc64/kernel/irq.c
@@ -70,7 +70,7 @@ struct ino_bucket ivector_table[NUM_IVECS] __attribute__ ((aligned (SMP_CACHE_BY
  */
 #define irq_work(__cpu)	&(trap_block[(__cpu)].irq_worklist)
 
-static struct irqaction *irq_action[NR_IRQS+1];
+static struct irqaction *irq_action[NR_IRQS];
 
 /* This only synchronizes entities which modify IRQ handler
  * state and some selected user-level spots that want to
@@ -116,12 +116,9 @@ int show_interrupts(struct seq_file *p, void *v)
 				   kstat_cpu(j).irqs[i]);
 		}
 #endif
-		seq_printf(p, " %s:%lx", action->name,
-			   get_ino_in_irqaction(action));
-		for (action = action->next; action; action = action->next) {
-			seq_printf(p, ", %s:%lx", action->name,
-				   get_ino_in_irqaction(action));
-		}
+		seq_printf(p, " %s", action->name);
+		for (action = action->next; action; action = action->next)
+			seq_printf(p, ", %s", action->name);
 		seq_putc(p, '\n');
 	}
 out_unlock:
@@ -245,48 +242,47 @@ void disable_irq(unsigned int irq)
 	}
 }
 
-static void build_irq_error(const char *msg, unsigned int ino, int pil, int inofixup,
+static void build_irq_error(const char *msg, unsigned int ino, int inofixup,
 			    unsigned long iclr, unsigned long imap,
 			    struct ino_bucket *bucket)
 {
-	prom_printf("IRQ: INO %04x (%d:%016lx:%016lx) --> "
-		    "(%d:%d:%016lx:%016lx), halting...\n",
-		    ino, bucket->pil, bucket->iclr, bucket->imap,
-		    pil, inofixup, iclr, imap);
+	prom_printf("IRQ: INO %04x (%016lx:%016lx) --> "
+		    "(%d:%016lx:%016lx), halting...\n",
+		    ino, bucket->iclr, bucket->imap,
+		    inofixup, iclr, imap);
 	prom_halt();
 }
 
-unsigned int build_irq(int pil, int inofixup, unsigned long iclr, unsigned long imap)
+unsigned int build_irq(int inofixup, unsigned long iclr, unsigned long imap)
 {
 	struct ino_bucket *bucket;
 	int ino;
 
-	BUG_ON(pil == 0);
 	BUG_ON(tlb_type == hypervisor);
 
 	/* RULE: Both must be specified in all other cases. */
 	if (iclr == 0UL || imap == 0UL) {
-		prom_printf("Invalid build_irq %d %d %016lx %016lx\n",
-			    pil, inofixup, iclr, imap);
+		prom_printf("Invalid build_irq %d %016lx %016lx\n",
+			    inofixup, iclr, imap);
 		prom_halt();
 	}
 	
 	ino = (upa_readl(imap) & (IMAP_IGN | IMAP_INO)) + inofixup;
 	if (ino > NUM_IVECS) {
-		prom_printf("Invalid INO %04x (%d:%d:%016lx:%016lx)\n",
-			    ino, pil, inofixup, iclr, imap);
+		prom_printf("Invalid INO %04x (%d:%016lx:%016lx)\n",
+			    ino, inofixup, iclr, imap);
 		prom_halt();
 	}
 
 	bucket = &ivector_table[ino];
 	if (bucket->flags & IBF_ACTIVE)
 		build_irq_error("IRQ: Trying to build active INO bucket.\n",
-				ino, pil, inofixup, iclr, imap, bucket);
+				ino, inofixup, iclr, imap, bucket);
 
 	if (bucket->irq_info) {
 		if (bucket->imap != imap || bucket->iclr != iclr)
 			build_irq_error("IRQ: Trying to reinit INO bucket.\n",
-					ino, pil, inofixup, iclr, imap, bucket);
+					ino, inofixup, iclr, imap, bucket);
 
 		goto out;
 	}
@@ -302,14 +298,13 @@ unsigned int build_irq(int pil, int inofixup, unsigned long iclr, unsigned long
 	 */
 	bucket->imap  = imap;
 	bucket->iclr  = iclr;
-	bucket->pil   = pil;
 	bucket->flags = 0;
 
 out:
 	return __irq(bucket);
 }
 
-unsigned int sun4v_build_irq(u32 devhandle, unsigned int devino, int pil, unsigned char flags)
+unsigned int sun4v_build_irq(u32 devhandle, unsigned int devino, unsigned char flags)
 {
 	struct ino_bucket *bucket;
 	unsigned long sysino;
@@ -328,7 +323,6 @@ unsigned int sun4v_build_irq(u32 devhandle, unsigned int devino, int pil, unsign
 	bucket->imap = ~0UL - sysino;
 	bucket->iclr = ~0UL - sysino;
 
-	bucket->pil = pil;
 	bucket->flags = flags;
 
 	bucket->irq_info = kzalloc(sizeof(struct irq_desc), GFP_ATOMIC);
@@ -356,16 +350,12 @@ static void atomic_bucket_insert(struct ino_bucket *bucket)
 
 static int check_irq_sharing(int pil, unsigned long irqflags)
 {
-	struct irqaction *action, *tmp;
+	struct irqaction *action;
 
 	action = *(irq_action + pil);
 	if (action) {
-		if ((action->flags & SA_SHIRQ) && (irqflags & SA_SHIRQ)) {
-			for (tmp = action; tmp->next; tmp = tmp->next)
-				;
-		} else {
+		if (!(action->flags & SA_SHIRQ) || !(irqflags & SA_SHIRQ))
 			return -EBUSY;
-		}
 	}
 	return 0;
 }
@@ -425,12 +415,12 @@ int request_irq(unsigned int irq, irqreturn_t (*handler)(int, void *, struct pt_
 	 	 * installing a new handler, but is this really a problem,
 	 	 * only the sysadmin is able to do this.
 	 	 */
-		rand_initialize_irq(irq);
+		rand_initialize_irq(PIL_DEVICE_IRQ);
 	}
 
 	spin_lock_irqsave(&irq_action_lock, flags);
 
-	if (check_irq_sharing(bucket->pil, irqflags)) {
+	if (check_irq_sharing(PIL_DEVICE_IRQ, irqflags)) {
 		spin_unlock_irqrestore(&irq_action_lock, flags);
 		return -EBUSY;
 	}
@@ -454,7 +444,7 @@ int request_irq(unsigned int irq, irqreturn_t (*handler)(int, void *, struct pt_
 	put_ino_in_irqaction(action, irq);
 	put_smpaff_in_irqaction(action, CPU_MASK_NONE);
 
-	append_irq_action(bucket->pil, action);
+	append_irq_action(PIL_DEVICE_IRQ, action);
 
 	enable_irq(irq);
 
@@ -478,16 +468,15 @@ EXPORT_SYMBOL(request_irq);
 
 static struct irqaction *unlink_irq_action(unsigned int irq, void *dev_id)
 {
-	struct ino_bucket *bucket = __bucket(irq);
 	struct irqaction *action, **pp;
 
-	pp = irq_action + bucket->pil;
+	pp = irq_action + PIL_DEVICE_IRQ;
 	action = *pp;
 	if (unlikely(!action))
 		return NULL;
 
 	if (unlikely(!action->handler)) {
-		printk("Freeing free IRQ %d\n", bucket->pil);
+		printk("Freeing free IRQ %d\n", PIL_DEVICE_IRQ);
 		return NULL;
 	}
 
@@ -648,7 +637,7 @@ static void process_bucket(struct ino_bucket *bp, struct pt_regs *regs)
 
 	/* Test and add entropy */
 	if (random & SA_SAMPLE_RANDOM)
-		add_interrupt_randomness(bp->pil);
+		add_interrupt_randomness(PIL_DEVICE_IRQ);
 out:
 	bp->flags &= ~IBF_INPROGRESS;
 }
@@ -691,7 +680,7 @@ void handler_irq(int irq, struct pt_regs *regs)
 	while (bp) {
 		struct ino_bucket *nbp = __bucket(bp->irq_chain);
 
-		kstat_this_cpu.irqs[bp->pil]++;
+		kstat_this_cpu.irqs[bp->virt_irq]++;
 
 		bp->irq_chain = 0;
 		process_bucket(bp, regs);
@@ -817,16 +806,9 @@ static void distribute_irqs(void)
 	spin_lock_irqsave(&irq_action_lock, flags);
 	cpu = 0;
 
-	/*
-	 * Skip the timer at [0], and very rare error/power intrs at [15].
-	 * Also level [12], it causes problems on Ex000 systems.
-	 */
 	for (level = 1; level < NR_IRQS; level++) {
 		struct irqaction *p = irq_action[level];
 
-		if (level == 12)
-			continue;
-
 		while(p) {
 			cpu = retarget_one_irq(p, cpu);
 			p = p->next;
diff --git a/arch/sparc64/kernel/pci_psycho.c b/arch/sparc64/kernel/pci_psycho.c
index d17878b145c..5743e1316a9 100644
--- a/arch/sparc64/kernel/pci_psycho.c
+++ b/arch/sparc64/kernel/pci_psycho.c
@@ -276,74 +276,6 @@ static unsigned long __onboard_imap_off[] = {
 	((ino & 0x20) ? (PSYCHO_ICLR_SCSI + (((ino) & 0x1f) << 3)) :  \
 			(PSYCHO_ICLR_A_SLOT0 + (((ino) & 0x1f)<<3)))
 
-/* PCI PSYCHO INO number to Sparc PIL level. */
-static unsigned char psycho_pil_table[] = {
-/*0x00*/0, 0, 0, 0,	/* PCI A slot 0  Int A, B, C, D */
-/*0x04*/0, 0, 0, 0,	/* PCI A slot 1  Int A, B, C, D */
-/*0x08*/0, 0, 0, 0,	/* PCI A slot 2  Int A, B, C, D */
-/*0x0c*/0, 0, 0, 0,	/* PCI A slot 3  Int A, B, C, D */
-/*0x10*/0, 0, 0, 0,	/* PCI B slot 0  Int A, B, C, D */
-/*0x14*/0, 0, 0, 0,	/* PCI B slot 1  Int A, B, C, D */
-/*0x18*/0, 0, 0, 0,	/* PCI B slot 2  Int A, B, C, D */
-/*0x1c*/0, 0, 0, 0,	/* PCI B slot 3  Int A, B, C, D */
-/*0x20*/5,		/* SCSI				*/
-/*0x21*/5,		/* Ethernet			*/
-/*0x22*/8,		/* Parallel Port		*/
-/*0x23*/13,		/* Audio Record			*/
-/*0x24*/14,		/* Audio Playback		*/
-/*0x25*/15,		/* PowerFail			*/
-/*0x26*/5,		/* second SCSI			*/
-/*0x27*/11,		/* Floppy			*/
-/*0x28*/5,		/* Spare Hardware		*/
-/*0x29*/9,		/* Keyboard			*/
-/*0x2a*/5,		/* Mouse			*/
-/*0x2b*/12,		/* Serial			*/
-/*0x2c*/10,		/* Timer 0			*/
-/*0x2d*/11,		/* Timer 1			*/
-/*0x2e*/15,		/* Uncorrectable ECC		*/
-/*0x2f*/15,		/* Correctable ECC		*/
-/*0x30*/15,		/* PCI Bus A Error		*/
-/*0x31*/15,		/* PCI Bus B Error		*/
-/*0x32*/15,		/* Power Management		*/
-};
-
-static int psycho_ino_to_pil(struct pci_dev *pdev, unsigned int ino)
-{
-	int ret;
-
-	ret = psycho_pil_table[ino];
-	if (ret == 0 && pdev == NULL) {
-		ret = 5;
-	} else if (ret == 0) {
-		switch ((pdev->class >> 16) & 0xff) {
-		case PCI_BASE_CLASS_STORAGE:
-			ret = 5;
-			break;
-
-		case PCI_BASE_CLASS_NETWORK:
-			ret = 6;
-			break;
-
-		case PCI_BASE_CLASS_DISPLAY:
-			ret = 9;
-			break;
-
-		case PCI_BASE_CLASS_MULTIMEDIA:
-		case PCI_BASE_CLASS_MEMORY:
-		case PCI_BASE_CLASS_BRIDGE:
-		case PCI_BASE_CLASS_SERIAL:
-			ret = 10;
-			break;
-
-		default:
-			ret = 5;
-			break;
-		};
-	}
-
-	return ret;
-}
-
 static unsigned int psycho_irq_build(struct pci_pbm_info *pbm,
 				     struct pci_dev *pdev,
 				     unsigned int ino)
@@ -351,7 +283,7 @@ static unsigned int psycho_irq_build(struct pci_pbm_info *pbm,
 	struct ino_bucket *bucket;
 	unsigned long imap, iclr;
 	unsigned long imap_off, iclr_off;
-	int pil, inofixup = 0;
+	int inofixup = 0;
 
 	ino &= PCI_IRQ_INO;
 	if (ino < PSYCHO_ONBOARD_IRQ_BASE) {
@@ -367,11 +299,6 @@ static unsigned int psycho_irq_build(struct pci_pbm_info *pbm,
 	}
 
 	/* Now build the IRQ bucket. */
-	pil = psycho_ino_to_pil(pdev, ino);
-
-	if (PIL_RESERVED(pil))
-		BUG();
-
 	imap = pbm->controller_regs + imap_off;
 	imap += 4;
 
@@ -382,7 +309,7 @@ static unsigned int psycho_irq_build(struct pci_pbm_info *pbm,
 	if ((ino & 0x20) == 0)
 		inofixup = ino & 0x03;
 
-	bucket = __bucket(build_irq(pil, inofixup, iclr, imap));
+	bucket = __bucket(build_irq(inofixup, iclr, imap));
 	bucket->flags |= IBF_PCI;
 
 	return __irq(bucket);
diff --git a/arch/sparc64/kernel/pci_sabre.c b/arch/sparc64/kernel/pci_sabre.c
index f67bb7f078c..caa7aeed5d1 100644
--- a/arch/sparc64/kernel/pci_sabre.c
+++ b/arch/sparc64/kernel/pci_sabre.c
@@ -523,78 +523,6 @@ static unsigned long __onboard_imap_off[] = {
 	((ino & 0x20) ? (SABRE_ICLR_SCSI + (((ino) & 0x1f) << 3)) :  \
 			(SABRE_ICLR_A_SLOT0 + (((ino) & 0x1f)<<3)))
 
-/* PCI SABRE INO number to Sparc PIL level. */
-static unsigned char sabre_pil_table[] = {
-/*0x00*/0, 0, 0, 0,	/* PCI A slot 0  Int A, B, C, D */
-/*0x04*/0, 0, 0, 0,	/* PCI A slot 1  Int A, B, C, D */
-/*0x08*/0, 0, 0, 0,	/* PCI A slot 2  Int A, B, C, D */
-/*0x0c*/0, 0, 0, 0,	/* PCI A slot 3  Int A, B, C, D */
-/*0x10*/0, 0, 0, 0,	/* PCI B slot 0  Int A, B, C, D */
-/*0x14*/0, 0, 0, 0,	/* PCI B slot 1  Int A, B, C, D */
-/*0x18*/0, 0, 0, 0,	/* PCI B slot 2  Int A, B, C, D */
-/*0x1c*/0, 0, 0, 0,	/* PCI B slot 3  Int A, B, C, D */
-/*0x20*/5,		/* SCSI				*/
-/*0x21*/5,		/* Ethernet			*/
-/*0x22*/8,		/* Parallel Port		*/
-/*0x23*/13,		/* Audio Record			*/
-/*0x24*/14,		/* Audio Playback		*/
-/*0x25*/15,		/* PowerFail			*/
-/*0x26*/5,		/* second SCSI			*/
-/*0x27*/11,		/* Floppy			*/
-/*0x28*/5,		/* Spare Hardware		*/
-/*0x29*/9,		/* Keyboard			*/
-/*0x2a*/5,		/* Mouse			*/
-/*0x2b*/12,		/* Serial			*/
-/*0x2c*/10,		/* Timer 0			*/
-/*0x2d*/11,		/* Timer 1			*/
-/*0x2e*/15,		/* Uncorrectable ECC		*/
-/*0x2f*/15,		/* Correctable ECC		*/
-/*0x30*/15,		/* PCI Bus A Error		*/
-/*0x31*/15,		/* PCI Bus B Error		*/
-/*0x32*/15,		/* Power Management		*/
-};
-
-static int sabre_ino_to_pil(struct pci_dev *pdev, unsigned int ino)
-{
-	int ret;
-
-	if (pdev &&
-	    pdev->vendor == PCI_VENDOR_ID_SUN &&
-	    pdev->device == PCI_DEVICE_ID_SUN_RIO_USB)
-		return 9;
-
-	ret = sabre_pil_table[ino];
-	if (ret == 0 && pdev == NULL) {
-		ret = 5;
-	} else if (ret == 0) {
-		switch ((pdev->class >> 16) & 0xff) {
-		case PCI_BASE_CLASS_STORAGE:
-			ret = 5;
-			break;
-
-		case PCI_BASE_CLASS_NETWORK:
-			ret = 6;
-			break;
-
-		case PCI_BASE_CLASS_DISPLAY:
-			ret = 9;
-			break;
-
-		case PCI_BASE_CLASS_MULTIMEDIA:
-		case PCI_BASE_CLASS_MEMORY:
-		case PCI_BASE_CLASS_BRIDGE:
-		case PCI_BASE_CLASS_SERIAL:
-			ret = 10;
-			break;
-
-		default:
-			ret = 5;
-			break;
-		};
-	}
-	return ret;
-}
-
 /* When a device lives behind a bridge deeper in the PCI bus topology
  * than APB, a special sequence must run to make sure all pending DMA
  * transfers at the time of IRQ delivery are visible in the coherency
@@ -619,7 +547,7 @@ static unsigned int sabre_irq_build(struct pci_pbm_info *pbm,
 	struct ino_bucket *bucket;
 	unsigned long imap, iclr;
 	unsigned long imap_off, iclr_off;
-	int pil, inofixup = 0;
+	int inofixup = 0;
 
 	ino &= PCI_IRQ_INO;
 	if (ino < SABRE_ONBOARD_IRQ_BASE) {
@@ -635,11 +563,6 @@ static unsigned int sabre_irq_build(struct pci_pbm_info *pbm,
 	}
 
 	/* Now build the IRQ bucket. */
-	pil = sabre_ino_to_pil(pdev, ino);
-
-	if (PIL_RESERVED(pil))
-		BUG();
-
 	imap = pbm->controller_regs + imap_off;
 	imap += 4;
 
@@ -650,7 +573,7 @@ static unsigned int sabre_irq_build(struct pci_pbm_info *pbm,
 	if ((ino & 0x20) == 0)
 		inofixup = ino & 0x03;
 
-	bucket = __bucket(build_irq(pil, inofixup, iclr, imap));
+	bucket = __bucket(build_irq(inofixup, iclr, imap));
 	bucket->flags |= IBF_PCI;
 
 	if (pdev) {
diff --git a/arch/sparc64/kernel/pci_schizo.c b/arch/sparc64/kernel/pci_schizo.c
index 7fe4de03ac2..ca49ef08236 100644
--- a/arch/sparc64/kernel/pci_schizo.c
+++ b/arch/sparc64/kernel/pci_schizo.c
@@ -232,101 +232,6 @@ static unsigned long schizo_iclr_offset(unsigned long ino)
 	return SCHIZO_ICLR_BASE + (ino * 8UL);
 }
 
-/* PCI SCHIZO INO number to Sparc PIL level.  This table only matters for
- * INOs which will not have an associated PCI device struct, ie. onboard
- * EBUS devices and PCI controller internal error interrupts.
- */
-static unsigned char schizo_pil_table[] = {
-/*0x00*/0, 0, 0, 0,	/* PCI slot 0  Int A, B, C, D	*/
-/*0x04*/0, 0, 0, 0,	/* PCI slot 1  Int A, B, C, D	*/
-/*0x08*/0, 0, 0, 0,	/* PCI slot 2  Int A, B, C, D	*/
-/*0x0c*/0, 0, 0, 0,	/* PCI slot 3  Int A, B, C, D	*/
-/*0x10*/0, 0, 0, 0,	/* PCI slot 4  Int A, B, C, D	*/
-/*0x14*/0, 0, 0, 0,	/* PCI slot 5  Int A, B, C, D	*/
-/*0x18*/5,		/* SCSI				*/
-/*0x19*/5,		/* second SCSI			*/
-/*0x1a*/0,		/* UNKNOWN			*/
-/*0x1b*/0,		/* UNKNOWN			*/
-/*0x1c*/8,		/* Parallel			*/
-/*0x1d*/5,		/* Ethernet			*/
-/*0x1e*/8,		/* Firewire-1394		*/
-/*0x1f*/9,		/* USB				*/
-/*0x20*/13,		/* Audio Record			*/
-/*0x21*/14,		/* Audio Playback		*/
-/*0x22*/12,		/* Serial			*/
-/*0x23*/5,		/* EBUS I2C 			*/
-/*0x24*/10,		/* RTC Clock			*/
-/*0x25*/11,		/* Floppy			*/
-/*0x26*/0,		/* UNKNOWN			*/
-/*0x27*/0,		/* UNKNOWN			*/
-/*0x28*/0,		/* UNKNOWN			*/
-/*0x29*/0,		/* UNKNOWN			*/
-/*0x2a*/10,		/* UPA 1			*/
-/*0x2b*/10,		/* UPA 2			*/
-/*0x2c*/0,		/* UNKNOWN			*/
-/*0x2d*/0,		/* UNKNOWN			*/
-/*0x2e*/0,		/* UNKNOWN			*/
-/*0x2f*/0,		/* UNKNOWN			*/
-/*0x30*/15,		/* Uncorrectable ECC		*/
-/*0x31*/15,		/* Correctable ECC		*/
-/*0x32*/15,		/* PCI Bus A Error		*/
-/*0x33*/15,		/* PCI Bus B Error		*/
-/*0x34*/15,		/* Safari Bus Error		*/
-/*0x35*/0,		/* Reserved			*/
-/*0x36*/0,		/* Reserved			*/
-/*0x37*/0,		/* Reserved			*/
-/*0x38*/0,		/* Reserved for NewLink		*/
-/*0x39*/0,		/* Reserved for NewLink		*/
-/*0x3a*/0,		/* Reserved for NewLink		*/
-/*0x3b*/0,		/* Reserved for NewLink		*/
-/*0x3c*/0,		/* Reserved for NewLink		*/
-/*0x3d*/0,		/* Reserved for NewLink		*/
-/*0x3e*/0,		/* Reserved for NewLink		*/
-/*0x3f*/0,		/* Reserved for NewLink		*/
-};
-
-static int schizo_ino_to_pil(struct pci_dev *pdev, unsigned int ino)
-{
-	int ret;
-
-	if (pdev &&
-	    pdev->vendor == PCI_VENDOR_ID_SUN &&
-	    pdev->device == PCI_DEVICE_ID_SUN_RIO_USB)
-		return 9;
-
-	ret = schizo_pil_table[ino];
-	if (ret == 0 && pdev == NULL) {
-		ret = 5;
-	} else if (ret == 0) {
-		switch ((pdev->class >> 16) & 0xff) {
-		case PCI_BASE_CLASS_STORAGE:
-			ret = 5;
-			break;
-
-		case PCI_BASE_CLASS_NETWORK:
-			ret = 6;
-			break;
-
-		case PCI_BASE_CLASS_DISPLAY:
-			ret = 9;
-			break;
-
-		case PCI_BASE_CLASS_MULTIMEDIA:
-		case PCI_BASE_CLASS_MEMORY:
-		case PCI_BASE_CLASS_BRIDGE:
-		case PCI_BASE_CLASS_SERIAL:
-			ret = 10;
-			break;
-
-		default:
-			ret = 5;
-			break;
-		};
-	}
-
-	return ret;
-}
-
 static void tomatillo_wsync_handler(struct ino_bucket *bucket, void *_arg1, void *_arg2)
 {
 	unsigned long sync_reg = (unsigned long) _arg2;
@@ -372,17 +277,12 @@ static unsigned int schizo_irq_build(struct pci_pbm_info *pbm,
 	struct ino_bucket *bucket;
 	unsigned long imap, iclr;
 	unsigned long imap_off, iclr_off;
-	int pil, ign_fixup;
+	int ign_fixup;
 
 	ino &= PCI_IRQ_INO;
 	imap_off = schizo_imap_offset(ino);
 
 	/* Now build the IRQ bucket. */
-	pil = schizo_ino_to_pil(pdev, ino);
-
-	if (PIL_RESERVED(pil))
-		BUG();
-
 	imap = pbm->pbm_regs + imap_off;
 	imap += 4;
 
@@ -405,7 +305,7 @@ static unsigned int schizo_irq_build(struct pci_pbm_info *pbm,
 			ign_fixup = (1 << 6);
 	}
 
-	bucket = __bucket(build_irq(pil, ign_fixup, iclr, imap));
+	bucket = __bucket(build_irq(ign_fixup, iclr, imap));
 	bucket->flags |= IBF_PCI;
 
 	if (pdev && pbm->chip_type == PBM_CHIP_TYPE_TOMATILLO) {
diff --git a/arch/sparc64/kernel/pci_sun4v.c b/arch/sparc64/kernel/pci_sun4v.c
index 0c089520297..b97c81ba883 100644
--- a/arch/sparc64/kernel/pci_sun4v.c
+++ b/arch/sparc64/kernel/pci_sun4v.c
@@ -843,38 +843,8 @@ static unsigned int pci_sun4v_irq_build(struct pci_pbm_info *pbm,
 					unsigned int devino)
 {
 	u32 devhandle = pbm->devhandle;
-	int pil;
 
-	pil = 5;
-	if (pdev) {
-		switch ((pdev->class >> 16) & 0xff) {
-		case PCI_BASE_CLASS_STORAGE:
-			pil = 5;
-			break;
-
-		case PCI_BASE_CLASS_NETWORK:
-			pil = 6;
-			break;
-
-		case PCI_BASE_CLASS_DISPLAY:
-			pil = 9;
-			break;
-
-		case PCI_BASE_CLASS_MULTIMEDIA:
-		case PCI_BASE_CLASS_MEMORY:
-		case PCI_BASE_CLASS_BRIDGE:
-		case PCI_BASE_CLASS_SERIAL:
-			pil = 10;
-			break;
-
-		default:
-			pil = 5;
-			break;
-		};
-	}
-	BUG_ON(PIL_RESERVED(pil));
-
-	return sun4v_build_irq(devhandle, devino, pil, IBF_PCI);
+	return sun4v_build_irq(devhandle, devino, IBF_PCI);
 }
 
 static void pci_sun4v_base_address_update(struct pci_dev *pdev, int resource)
diff --git a/arch/sparc64/kernel/sbus.c b/arch/sparc64/kernel/sbus.c
index 1d6ffdeabd4..8812417247d 100644
--- a/arch/sparc64/kernel/sbus.c
+++ b/arch/sparc64/kernel/sbus.c
@@ -691,36 +691,6 @@ void sbus_set_sbus64(struct sbus_dev *sdev, int bursts)
 	upa_writeq(val, cfg_reg);
 }
 
-/* SBUS SYSIO INO number to Sparc PIL level. */
-static unsigned char sysio_ino_to_pil[] = {
-	0, 5, 5, 7, 5, 7, 8, 9,		/* SBUS slot 0 */
-	0, 5, 5, 7, 5, 7, 8, 9,		/* SBUS slot 1 */
-	0, 5, 5, 7, 5, 7, 8, 9,		/* SBUS slot 2 */
-	0, 5, 5, 7, 5, 7, 8, 9,		/* SBUS slot 3 */
-	5, /* Onboard SCSI */
-	5, /* Onboard Ethernet */
-/*XXX*/	8, /* Onboard BPP */
-	0, /* Bogon */
-       13, /* Audio */
-/*XXX*/15, /* PowerFail */
-	0, /* Bogon */
-	0, /* Bogon */
-       12, /* Zilog Serial Channels (incl. Keyboard/Mouse lines) */
-       11, /* Floppy */
-	0, /* Spare Hardware (bogon for now) */
-	0, /* Keyboard (bogon for now) */
-	0, /* Mouse (bogon for now) */
-	0, /* Serial (bogon for now) */
-     0, 0, /* Bogon, Bogon */
-       10, /* Timer 0 */
-       11, /* Timer 1 */
-     0, 0, /* Bogon, Bogon */
-       15, /* Uncorrectable SBUS Error */
-       15, /* Correctable SBUS Error */
-       15, /* SBUS Error */
-/*XXX*/ 0, /* Power Management (bogon for now) */
-};
-
 /* INO number to IMAP register offset for SYSIO external IRQ's.
  * This should conform to both Sunfire/Wildfire server and Fusion
  * desktop designs.
@@ -812,21 +782,12 @@ unsigned int sbus_build_irq(void *buscookie, unsigned int ino)
 	struct sbus_iommu *iommu = sbus->iommu;
 	unsigned long reg_base = iommu->sbus_control_reg - 0x2000UL;
 	unsigned long imap, iclr;
-	int pil, sbus_level = 0;
-
-	pil = sysio_ino_to_pil[ino];
-	if (!pil) {
-		printk("sbus_irq_build: Bad SYSIO INO[%x]\n", ino);
-		panic("Bad SYSIO IRQ translations...");
-	}
-
-	if (PIL_RESERVED(pil))
-		BUG();
+	int sbus_level = 0;
 
 	imap = sysio_irq_offsets[ino];
 	if (imap == ((unsigned long)-1)) {
-		prom_printf("get_irq_translations: Bad SYSIO INO[%x] cpu[%d]\n",
-			    ino, pil);
+		prom_printf("get_irq_translations: Bad SYSIO INO[%x]\n",
+			    ino);
 		prom_halt();
 	}
 	imap += reg_base;
@@ -860,7 +821,7 @@ unsigned int sbus_build_irq(void *buscookie, unsigned int ino)
 
 		iclr += ((unsigned long)sbus_level - 1UL) * 8UL;
 	}
-	return build_irq(pil, sbus_level, iclr, imap);
+	return build_irq(sbus_level, iclr, imap);
 }
 
 /* Error interrupt handling. */
diff --git a/include/asm-sparc64/irq.h b/include/asm-sparc64/irq.h
index bbdf89e6faa..d66c7cd820c 100644
--- a/include/asm-sparc64/irq.h
+++ b/include/asm-sparc64/irq.h
@@ -37,14 +37,14 @@ struct irq_desc {
  * line.  Keep this in mind please.
  */
 struct ino_bucket {
-	/* Next handler in per-CPU PIL worklist.  We know that
+	/* Next handler in per-CPU IRQ worklist.  We know that
 	 * bucket pointers have the high 32-bits clear, so to
 	 * save space we only store the bits we need.
 	 */
 /*0x00*/unsigned int irq_chain;
 
-	/* PIL to schedule this IVEC at. */
-/*0x04*/unsigned char pil;
+	/* Virtual interrupt number assigned to this INO.  */
+/*0x04*/unsigned char virt_irq;
 
 	/* If an IVEC arrives while irq_info is NULL, we
 	 * set this to notify request_irq() about the event.
@@ -95,7 +95,6 @@ extern struct ino_bucket ivector_table[NUM_IVECS];
 
 #define __irq_ino(irq) \
         (((struct ino_bucket *)(unsigned long)(irq)) - &ivector_table[0])
-#define __irq_pil(irq) ((struct ino_bucket *)(unsigned long)(irq))->pil
 #define __bucket(irq) ((struct ino_bucket *)(unsigned long)(irq))
 #define __irq(bucket) ((unsigned int)(unsigned long)(bucket))
 
@@ -105,8 +104,8 @@ extern struct ino_bucket ivector_table[NUM_IVECS];
 extern void disable_irq(unsigned int);
 #define disable_irq_nosync disable_irq
 extern void enable_irq(unsigned int);
-extern unsigned int build_irq(int pil, int inofixup, unsigned long iclr, unsigned long imap);
-extern unsigned int sun4v_build_irq(u32 devhandle, unsigned int devino, int pil, unsigned char flags);
+extern unsigned int build_irq(int inofixup, unsigned long iclr, unsigned long imap);
+extern unsigned int sun4v_build_irq(u32 devhandle, unsigned int devino, unsigned char flags);
 extern unsigned int sbus_build_irq(void *sbus, unsigned int ino);
 
 static __inline__ void set_softint(unsigned long bits)