Merge branch 'parisc' of master.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6

CREDITS

@@ -611,8 +611,7 @@ S: USA
 N: Randolph Chung
 E: tausq@debian.org
 D: Linux/PA-RISC hacker
-S: Los Altos, CA 94022
-S: USA
+S: Hong Kong
 
 N: Juan Jose Ciarlante
 W: http://juanjox.kernelnotes.org/
@@ -3405,6 +3404,15 @@ S: Chudenicka 8
 S: 10200 Prague 10, Hostivar
 S: Czech Republic
 
+N: Thibaut Varene
+E: T-Bone@parisc-linux.org
+W: http://www.parisc-linux.org/
+P: 1024D/B7D2F063 E67C 0D43 A75E 12A5 BB1C  FA2F 1E32 C3DA B7D2 F063
+D: PA-RISC port minion, PDC and GSCPS2 drivers, debuglocks and other bits
+D: Some bits in an ARM port, S1D13XXX FB driver, random patches here and there
+D: AD1889 sound driver
+S: Paris, France
+
 N: Heikki Vatiainen
 E: hessu@cs.tut.fi
 D: Co-author of Multi-Protocol Over ATM (MPOA), some LANE hacks

arch/parisc/kernel/drivers.c

@@ -499,8 +499,12 @@ alloc_pa_dev(unsigned long hpa, struct hardware_path *mod_path)
 
 	dev = create_parisc_device(mod_path);
 	if (dev->id.hw_type != HPHW_FAULTY) {
-		printk("Two devices have hardware path %s.  Please file a bug with HP.\n"
-			"In the meantime, you could try rearranging your cards.\n", parisc_pathname(dev));
+		printk(KERN_ERR "Two devices have hardware path [%s].  "
+				"IODC data for second device: "
+				"%02x%02x%02x%02x%02x%02x\n"
+				"Rearranging GSC cards sometimes helps\n",
+			parisc_pathname(dev), iodc_data[0], iodc_data[1],
+			iodc_data[3], iodc_data[4], iodc_data[5], iodc_data[6]);
 		return NULL;
 	}
 

arch/parisc/kernel/entry.S

@@ -1846,6 +1846,7 @@ sys_clone_wrapper:
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #endif
 
+	/* WARNING - Clobbers r19 and r21, userspace must save these! */
 	STREG	%r2,PT_GR19(%r1)	/* save for child */
 	STREG	%r30,PT_GR21(%r1)
 	BL	sys_clone,%r2

arch/parisc/kernel/inventory.c

@@ -188,7 +188,7 @@ pat_query_module(ulong pcell_loc, ulong mod_index)
 	temp = pa_pdc_cell.cba;
 	dev = alloc_pa_dev(PAT_GET_CBA(temp), &pa_pdc_cell.mod_path);
 	if (!dev) {
-		return PDC_NE_MOD;
+		return PDC_OK;
 	}
 
 	/* alloc_pa_dev sets dev->hpa */

arch/parisc/kernel/irq.c

@@ -30,6 +30,9 @@
 #include <linux/seq_file.h>
 #include <linux/spinlock.h>
 #include <linux/types.h>
+#include <asm/io.h>
+
+#include <asm/smp.h>
 
 #undef PARISC_IRQ_CR16_COUNTS
 
@@ -43,26 +46,34 @@ extern irqreturn_t ipi_interrupt(int, void *, struct pt_regs *);
 */
 static volatile unsigned long cpu_eiem = 0;
 
-static void cpu_set_eiem(void *info)
-{
-	set_eiem((unsigned long) info);
-}
-
-static inline void cpu_disable_irq(unsigned int irq)
+static void cpu_disable_irq(unsigned int irq)
 {
 	unsigned long eirr_bit = EIEM_MASK(irq);
 
 	cpu_eiem &= ~eirr_bit;
-        on_each_cpu(cpu_set_eiem, (void *) cpu_eiem, 1, 1);
+	/* Do nothing on the other CPUs.  If they get this interrupt,
+	 * The & cpu_eiem in the do_cpu_irq_mask() ensures they won't
+	 * handle it, and the set_eiem() at the bottom will ensure it
+	 * then gets disabled */
 }
 
 static void cpu_enable_irq(unsigned int irq)
 {
 	unsigned long eirr_bit = EIEM_MASK(irq);
 
-	mtctl(eirr_bit, 23);	/* clear EIRR bit before unmasking */
 	cpu_eiem |= eirr_bit;
-        on_each_cpu(cpu_set_eiem, (void *) cpu_eiem, 1, 1);
+
+	/* FIXME: while our interrupts aren't nested, we cannot reset
+	 * the eiem mask if we're already in an interrupt.  Once we
+	 * implement nested interrupts, this can go away
+	 */
+	if (!in_interrupt())
+		set_eiem(cpu_eiem);
+
+	/* This is just a simple NOP IPI.  But what it does is cause
+	 * all the other CPUs to do a set_eiem(cpu_eiem) at the end
+	 * of the interrupt handler */
+	smp_send_all_nop();
 }
 
 static unsigned int cpu_startup_irq(unsigned int irq)
@@ -74,6 +85,35 @@ static unsigned int cpu_startup_irq(unsigned int irq)
 void no_ack_irq(unsigned int irq) { }
 void no_end_irq(unsigned int irq) { }
 
+#ifdef CONFIG_SMP
+int cpu_check_affinity(unsigned int irq, cpumask_t *dest)
+{
+	int cpu_dest;
+
+	/* timer and ipi have to always be received on all CPUs */
+	if (irq == TIMER_IRQ || irq == IPI_IRQ) {
+		/* Bad linux design decision.  The mask has already
+		 * been set; we must reset it */
+		irq_affinity[irq] = CPU_MASK_ALL;
+		return -EINVAL;
+	}
+
+	/* whatever mask they set, we just allow one CPU */
+	cpu_dest = first_cpu(*dest);
+	*dest = cpumask_of_cpu(cpu_dest);
+
+	return 0;
+}
+
+static void cpu_set_affinity_irq(unsigned int irq, cpumask_t dest)
+{
+	if (cpu_check_affinity(irq, &dest))
+		return;
+
+	irq_affinity[irq] = dest;
+}
+#endif
+
 static struct hw_interrupt_type cpu_interrupt_type = {
 	.typename	= "CPU",
 	.startup	= cpu_startup_irq,
@@ -82,7 +122,9 @@ static struct hw_interrupt_type cpu_interrupt_type = {
 	.disable	= cpu_disable_irq,
 	.ack		= no_ack_irq,
 	.end		= no_end_irq,
-//	.set_affinity	= cpu_set_affinity_irq,
+#ifdef CONFIG_SMP
+	.set_affinity	= cpu_set_affinity_irq,
+#endif
 };
 
 int show_interrupts(struct seq_file *p, void *v)
@@ -219,6 +261,17 @@ int txn_alloc_irq(unsigned int bits_wide)
 	return -1;
 }
 
+
+unsigned long txn_affinity_addr(unsigned int irq, int cpu)
+{
+#ifdef CONFIG_SMP
+	irq_affinity[irq] = cpumask_of_cpu(cpu);
+#endif
+
+	return cpu_data[cpu].txn_addr;
+}
+
+
 unsigned long txn_alloc_addr(unsigned int virt_irq)
 {
 	static int next_cpu = -1;
@@ -233,7 +286,7 @@ unsigned long txn_alloc_addr(unsigned int virt_irq)
 	if (next_cpu >= NR_CPUS) 
 		next_cpu = 0;	/* nothing else, assign monarch */
 
-	return cpu_data[next_cpu].txn_addr;
+	return txn_affinity_addr(virt_irq, next_cpu);
 }
 
 
@@ -250,10 +303,11 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 	irq_enter();
 
 	/*
-	 * Only allow interrupt processing to be interrupted by the
-	 * timer tick
+	 * Don't allow TIMER or IPI nested interrupts.
+	 * Allowing any single interrupt to nest can lead to that CPU
+	 * handling interrupts with all enabled interrupts unmasked.
 	 */
-	set_eiem(EIEM_MASK(TIMER_IRQ));
+	set_eiem(0UL);
 
 	/* 1) only process IRQs that are enabled/unmasked (cpu_eiem)
 	 * 2) We loop here on EIRR contents in order to avoid
@@ -267,23 +321,41 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 		if (!eirr_val)
 			break;
 
-		if (eirr_val & EIEM_MASK(TIMER_IRQ))
-			set_eiem(0);
-
 		mtctl(eirr_val, 23); /* reset bits we are going to process */
 
 		/* Work our way from MSb to LSb...same order we alloc EIRs */
 		for (irq = TIMER_IRQ; eirr_val && bit; bit>>=1, irq++) {
+#ifdef CONFIG_SMP
+			cpumask_t dest = irq_affinity[irq];
+#endif
 			if (!(bit & eirr_val))
 				continue;
 
 			/* clear bit in mask - can exit loop sooner */
 			eirr_val &= ~bit;
 
+#ifdef CONFIG_SMP
+			/* FIXME: because generic set affinity mucks
+			 * with the affinity before sending it to us
+			 * we can get the situation where the affinity is
+			 * wrong for our CPU type interrupts */
+			if (irq != TIMER_IRQ && irq != IPI_IRQ &&
+			    !cpu_isset(smp_processor_id(), dest)) {
+				int cpu = first_cpu(dest);
+
+				printk(KERN_DEBUG "redirecting irq %d from CPU %d to %d\n",
+				       irq, smp_processor_id(), cpu);
+				gsc_writel(irq + CPU_IRQ_BASE,
+					   cpu_data[cpu].hpa);
+				continue;
+			}
+#endif
+
 			__do_IRQ(irq, regs);
 		}
 	}
-	set_eiem(cpu_eiem);
+
+	set_eiem(cpu_eiem);	/* restore original mask */
 	irq_exit();
 }
 
@@ -291,12 +363,14 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 static struct irqaction timer_action = {
 	.handler = timer_interrupt,
 	.name = "timer",
+	.flags = SA_INTERRUPT,
 };
 
 #ifdef CONFIG_SMP
 static struct irqaction ipi_action = {
 	.handler = ipi_interrupt,
 	.name = "IPI",
+	.flags = SA_INTERRUPT,
 };
 #endif
 

arch/parisc/kernel/perf.c

@@ -196,8 +196,7 @@ static int perf_open(struct inode *inode, struct file *file);
 static ssize_t perf_read(struct file *file, char __user *buf, size_t cnt, loff_t *ppos);
 static ssize_t perf_write(struct file *file, const char __user *buf, size_t count, 
 	loff_t *ppos);
-static int perf_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
-	unsigned long arg);
+static long perf_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
 static void perf_start_counters(void);
 static int perf_stop_counters(uint32_t *raddr);
 static struct rdr_tbl_ent * perf_rdr_get_entry(uint32_t rdr_num);
@@ -438,48 +437,56 @@ static void perf_patch_images(void)
  * must be running on the processor that you wish to change.
  */
 
-static int perf_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
-	unsigned long arg)
+static long perf_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
 	long error_start;
 	uint32_t raddr[4];
+	int error = 0;
 
+	lock_kernel();
 	switch (cmd) {
 
 	    case PA_PERF_ON:
 			/* Start the counters */
 			perf_start_counters();
-			return 0;
+			break;
 
 	    case PA_PERF_OFF:
 			error_start = perf_stop_counters(raddr);
 			if (error_start != 0) {
 				printk(KERN_ERR "perf_off: perf_stop_counters = %ld\n", error_start);
-				return -EFAULT;	
+				error = -EFAULT;
+				break;
 			}
 
 			/* copy out the Counters */
 			if (copy_to_user((void __user *)arg, raddr, 
 					sizeof (raddr)) != 0) {
-				return -EFAULT;
+				error =  -EFAULT;
+				break;
 			}
-			return 0;
+			break;
 
 	    case PA_PERF_VERSION:
   	  		/* Return the version # */
-			return put_user(PERF_VERSION, (int *)arg);
+			error = put_user(PERF_VERSION, (int *)arg);
+			break;
 
 	    default:
-  	 		break;
+  	 		error = -ENOTTY;
 	}
-	return -ENOTTY;
+
+	unlock_kernel();
+
+	return error;
 }
 
 static struct file_operations perf_fops = {
 	.llseek = no_llseek,
 	.read = perf_read,
 	.write = perf_write,
-	.ioctl = perf_ioctl,
+	.unlocked_ioctl = perf_ioctl,
+	.compat_ioctl = perf_ioctl,
 	.open = perf_open,
 	.release = perf_release
 };

arch/parisc/kernel/ptrace.c

@@ -264,6 +264,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		 * sigkill.  perhaps it should be put in the status
 		 * that it wants to exit.
 		 */
+		ret = 0;
 		DBG("sys_ptrace(KILL)\n");
 		if (child->exit_state == EXIT_ZOMBIE)	/* already dead */
 			goto out_tsk;
@@ -344,11 +345,11 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 
 	case PTRACE_GETEVENTMSG:
                 ret = put_user(child->ptrace_message, (unsigned int __user *) data);
-		goto out;
+		goto out_tsk;
 
 	default:
 		ret = ptrace_request(child, request, addr, data);
-		goto out;
+		goto out_tsk;
 	}
 
 out_wake_notrap:

arch/parisc/kernel/signal.c

@@ -296,7 +296,6 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 	struct rt_sigframe __user *frame;
 	unsigned long rp, usp;
 	unsigned long haddr, sigframe_size;
-	struct siginfo si;
 	int err = 0;
 #ifdef __LP64__
 	compat_int_t compat_val;

arch/parisc/kernel/smp.c

@@ -181,12 +181,19 @@ ipi_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 		while (ops) {
 			unsigned long which = ffz(~ops);
 
+			ops &= ~(1 << which);
+
 			switch (which) {
+			case IPI_NOP:
+#if (kDEBUG>=100)
+				printk(KERN_DEBUG "CPU%d IPI_NOP\n",this_cpu);
+#endif /* kDEBUG */
+				break;
+				
 			case IPI_RESCHEDULE:
 #if (kDEBUG>=100)
 				printk(KERN_DEBUG "CPU%d IPI_RESCHEDULE\n",this_cpu);
 #endif /* kDEBUG */
-				ops &= ~(1 << IPI_RESCHEDULE);
 				/*
 				 * Reschedule callback.  Everything to be
 				 * done is done by the interrupt return path.
@@ -197,7 +204,6 @@ ipi_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 #if (kDEBUG>=100)
 				printk(KERN_DEBUG "CPU%d IPI_CALL_FUNC\n",this_cpu);
 #endif /* kDEBUG */
-				ops &= ~(1 << IPI_CALL_FUNC);
 				{
 					volatile struct smp_call_struct *data;
 					void (*func)(void *info);
@@ -231,7 +237,6 @@ ipi_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 #if (kDEBUG>=100)
 				printk(KERN_DEBUG "CPU%d IPI_CPU_START\n",this_cpu);
 #endif /* kDEBUG */
-				ops &= ~(1 << IPI_CPU_START);
 #ifdef ENTRY_SYS_CPUS
 				p->state = STATE_RUNNING;
 #endif
@@ -241,7 +246,6 @@ ipi_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 #if (kDEBUG>=100)
 				printk(KERN_DEBUG "CPU%d IPI_CPU_STOP\n",this_cpu);
 #endif /* kDEBUG */
-				ops &= ~(1 << IPI_CPU_STOP);
 #ifdef ENTRY_SYS_CPUS
 #else
 				halt_processor();
@@ -252,13 +256,11 @@ ipi_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 #if (kDEBUG>=100)
 				printk(KERN_DEBUG "CPU%d is alive!\n",this_cpu);
 #endif /* kDEBUG */
-				ops &= ~(1 << IPI_CPU_TEST);
 				break;
 
 			default:
 				printk(KERN_CRIT "Unknown IPI num on CPU%d: %lu\n",
 					this_cpu, which);
-				ops &= ~(1 << which);
 				return IRQ_NONE;
 			} /* Switch */
 		} /* while (ops) */
@@ -312,6 +314,12 @@ smp_send_start(void)	{ send_IPI_allbutself(IPI_CPU_START); }
 void 
 smp_send_reschedule(int cpu) { send_IPI_single(cpu, IPI_RESCHEDULE); }
 
+void
+smp_send_all_nop(void)
+{
+	send_IPI_allbutself(IPI_NOP);
+}
+
 
 /**
  * Run a function on all other CPUs.
@@ -339,6 +347,10 @@ smp_call_function (void (*func) (void *info), void *info, int retry, int wait)
 	/* Can deadlock when called with interrupts disabled */
 	WARN_ON(irqs_disabled());
 
+	/* can also deadlock if IPIs are disabled */
+	WARN_ON((get_eiem() & (1UL<<(CPU_IRQ_MAX - IPI_IRQ))) == 0);
+
+	
 	data.func = func;
 	data.info = info;
 	data.wait = wait;

arch/parisc/kernel/syscall.S

@@ -164,7 +164,7 @@ linux_gateway_entry:
 #endif
 	STREG	%r2,  TASK_PT_GR30(%r1)		/* ... and save it */
 	
-	STREG	%r20, TASK_PT_GR20(%r1)
+	STREG	%r20, TASK_PT_GR20(%r1)		/* Syscall number */
 	STREG	%r21, TASK_PT_GR21(%r1)
 	STREG	%r22, TASK_PT_GR22(%r1)
 	STREG	%r23, TASK_PT_GR23(%r1)		/* 4th argument */
@@ -527,6 +527,7 @@ lws_compare_and_swap:
 		We *must* giveup this call and fail.
 	*/
 	ldw	4(%sr2,%r20), %r28			/* Load thread register */
+	/* WARNING: If cr27 cycles to the same value we have problems */
 	mfctl	%cr27, %r21				/* Get current thread register */
 	cmpb,<>,n	%r21, %r28, cas_lock		/* Called recursive? */
 	b	lws_exit				/* Return error! */

drivers/ide/Kconfig

@@ -625,7 +625,7 @@ config BLK_DEV_NS87415
 	tristate "NS87415 chipset support"
 	help
 	  This driver adds detection and support for the NS87415 chip
-	  (used in SPARC64, among others).
+	  (used mainly on SPARC64 and PA-RISC machines).
 
 	  Please read the comments at the top of <file:drivers/ide/pci/ns87415.c>.
 

drivers/isdn/hisax/Kconfig

@@ -110,7 +110,7 @@ config HISAX_16_3
 
 config HISAX_TELESPCI
 	bool "Teles PCI"
-	depends on PCI && (BROKEN || !(SPARC64 || PPC))
+	depends on PCI && (BROKEN || !(SPARC || PPC || PARISC || M68K))
 	help
 	  This enables HiSax support for the Teles PCI.
 	  See <file:Documentation/isdn/README.HiSax> on how to configure it.
@@ -238,7 +238,7 @@ config HISAX_MIC
 
 config HISAX_NETJET
 	bool "NETjet card"
-	depends on PCI && (BROKEN || !(SPARC64 || PPC))
+	depends on PCI && (BROKEN || !(SPARC || PPC || PARISC || M68K))
 	help
 	  This enables HiSax support for the NetJet from Traverse
 	  Technologies.
@@ -249,7 +249,7 @@ config HISAX_NETJET
 
 config HISAX_NETJET_U
 	bool "NETspider U card"
-	depends on PCI && (BROKEN || !(SPARC64 || PPC))
+	depends on PCI && (BROKEN || !(SPARC || PPC || PARISC || M68K))
 	help
 	  This enables HiSax support for the Netspider U interface ISDN card
 	  from Traverse Technologies.
@@ -317,7 +317,7 @@ config HISAX_GAZEL
 
 config HISAX_HFC_PCI
 	bool "HFC PCI-Bus cards"
-	depends on PCI && (BROKEN || !(SPARC64 || PPC))
+	depends on PCI && (BROKEN || !(SPARC || PPC || PARISC || M68K))
 	help
 	  This enables HiSax support for the HFC-S PCI 2BDS0 based cards.
 
@@ -344,14 +344,14 @@ config HISAX_HFC_SX
 
 config HISAX_ENTERNOW_PCI
 	bool "Formula-n enter:now PCI card"
-	depends on PCI && (BROKEN || !(SPARC64 || PPC))
+	depends on PCI && (BROKEN || !(SPARC || PPC || PARISC || M68K))
 	help
 	  This enables HiSax support for the Formula-n enter:now PCI
 	  ISDN card.
 
 config HISAX_AMD7930
 	bool "Am7930 (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && (SPARC32 || SPARC64)
+	depends on EXPERIMENTAL && SPARC
 	help
 	  This enables HiSax support for the AMD7930 chips on some SPARCs.
 	  This code is not finished yet.

drivers/isdn/pcbit/Kconfig

@@ -3,7 +3,7 @@
 #
 config ISDN_DRV_PCBIT
 	tristate "PCBIT-D support"
-	depends on ISDN_I4L && ISA && (BROKEN || !PPC)
+	depends on ISDN_I4L && ISA && (BROKEN || X86)
 	help
 	  This enables support for the PCBIT ISDN-card.  This card is
 	  manufactured in Portugal by Octal.  For running this card,

drivers/parisc/iosapic.c

@@ -700,6 +700,28 @@ static unsigned int iosapic_startup_irq(unsigned int irq)
 	return 0;
 }
 
+#ifdef CONFIG_SMP
+static void iosapic_set_affinity_irq(unsigned int irq, cpumask_t dest)
+{
+	struct vector_info *vi = iosapic_get_vector(irq);
+	u32 d0, d1, dummy_d0;
+	unsigned long flags;
+
+	if (cpu_check_affinity(irq, &dest))
+		return;
+
+	vi->txn_addr = txn_affinity_addr(irq, first_cpu(dest));
+
+	spin_lock_irqsave(&iosapic_lock, flags);
+	/* d1 contains the destination CPU, so only want to set that
+	 * entry */
+	iosapic_rd_irt_entry(vi, &d0, &d1);
+	iosapic_set_irt_data(vi, &dummy_d0, &d1);
+	iosapic_wr_irt_entry(vi, d0, d1);
+	spin_unlock_irqrestore(&iosapic_lock, flags);
+}
+#endif
+
 static struct hw_interrupt_type iosapic_interrupt_type = {
 	.typename =	"IO-SAPIC-level",
 	.startup =	iosapic_startup_irq,
@@ -708,7 +730,9 @@ static struct hw_interrupt_type iosapic_interrupt_type = {
 	.disable =	iosapic_disable_irq,
 	.ack =		no_ack_irq,
 	.end =		iosapic_end_irq,
-//	.set_affinity =	iosapic_set_affinity_irq,
+#ifdef CONFIG_SMP
+	.set_affinity =	iosapic_set_affinity_irq,
+#endif
 };
 
 int iosapic_fixup_irq(void *isi_obj, struct pci_dev *pcidev)

drivers/parisc/superio.c

@@ -24,6 +24,9 @@
  *      Major changes to get basic interrupt infrastructure working to
  *      hopefully be able to support all SuperIO devices. Currently
  *      works with serial. -- John Marvin <jsm@fc.hp.com>
+ *
+ *	Converted superio_init() to be a PCI_FIXUP_FINAL callee.
+ *         -- Kyle McMartin <kyle@parisc-linux.org>
  */
 
 
@@ -141,10 +144,10 @@ superio_interrupt(int parent_irq, void *devp, struct pt_regs *regs)
 }
 
 /* Initialize Super I/O device */
-
-static void __devinit
-superio_init(struct superio_device *sio)
+static void
+superio_init(struct pci_dev *pcidev)
 {
+	struct superio_device *sio = &sio_dev;
 	struct pci_dev *pdev = sio->lio_pdev;
 	u16 word;
 
@@ -160,8 +163,8 @@ superio_init(struct superio_device *sio)
 	/* ...then properly fixup the USB to point at suckyio PIC */
 	sio->usb_pdev->irq = superio_fixup_irq(sio->usb_pdev);
 
-	printk (KERN_INFO "SuperIO: Found NS87560 Legacy I/O device at %s (IRQ %i) \n",
-		pci_name(pdev),pdev->irq);
+	printk(KERN_INFO "SuperIO: Found NS87560 Legacy I/O device at %s (IRQ %i) \n",
+	       pci_name(pdev), pdev->irq);
 
 	pci_read_config_dword (pdev, SIO_SP1BAR, &sio->sp1_base);
 	sio->sp1_base &= ~1;
@@ -274,7 +277,7 @@ superio_init(struct superio_device *sio)
 
 	sio->suckyio_irq_enabled = 1;
 }
-
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87560_LIO, superio_init);
 
 static void superio_disable_irq(unsigned int irq)
 {
@@ -452,8 +455,10 @@ static void superio_fixup_pci(struct pci_dev *pdev)
 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87415, superio_fixup_pci);
 
 
-static int __devinit superio_probe(struct pci_dev *dev, const struct pci_device_id *id)
+static int __devinit
+superio_probe(struct pci_dev *dev, const struct pci_device_id *id)
 {
+	struct superio_device *sio = &sio_dev;
 
 	/*
 	** superio_probe(00:0e.0) ven 0x100b dev 0x2 sv 0x0 sd 0x0 class 0x1018a
@@ -466,7 +471,8 @@ static int __devinit superio_probe(struct pci_dev *dev, const struct pci_device_
 		dev->subsystem_vendor, dev->subsystem_device,
 		dev->class);
 
-	superio_init(&sio_dev);
+	if (!sio->suckyio_irq_enabled)
+		BUG(); /* Enabled by PCI_FIXUP_FINAL */
 
 	if (dev->device == PCI_DEVICE_ID_NS_87560_LIO) {	/* Function 1 */
 		superio_parport_init();
@@ -486,7 +492,9 @@ static int __devinit superio_probe(struct pci_dev *dev, const struct pci_device_
 }
 
 static struct pci_device_id superio_tbl[] = {
-	{ PCI_VENDOR_ID_NS, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+	{ PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87560_LIO) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87560_USB) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87415) },
 	{ 0, }
 };
 
@@ -506,6 +514,5 @@ static void __exit superio_exit(void)
 	pci_unregister_driver(&superio_driver);
 }
 
-
 module_init(superio_modinit);
 module_exit(superio_exit);

drivers/serial/Kconfig

@@ -507,7 +507,7 @@ config SERIAL_SUNSU_CONSOLE
 
 config SERIAL_MUX
 	tristate "Serial MUX support"
-	depends on PARISC
+	depends on GSC
 	select SERIAL_CORE
 	default y
 	---help---

drivers/serial/mux.c

@@ -65,8 +65,8 @@ static struct uart_driver mux_driver = {
 
 static struct timer_list mux_timer;
 
-#define UART_PUT_CHAR(p, c) __raw_writel((c), (unsigned long)(p)->membase + IO_DATA_REG_OFFSET)
-#define UART_GET_FIFO_CNT(p) __raw_readl((unsigned long)(p)->membase + IO_DCOUNT_REG_OFFSET)
+#define UART_PUT_CHAR(p, c) __raw_writel((c), (p)->membase + IO_DATA_REG_OFFSET)
+#define UART_GET_FIFO_CNT(p) __raw_readl((p)->membase + IO_DCOUNT_REG_OFFSET)
 #define GET_MUX_PORTS(iodc_data) ((((iodc_data)[4] & 0xf0) >> 4) * 8) + 8
 
 /**
@@ -79,10 +79,7 @@ static struct timer_list mux_timer;
  */
 static unsigned int mux_tx_empty(struct uart_port *port)
 {
-	unsigned int cnt = __raw_readl((unsigned long)port->membase 
-				+ IO_DCOUNT_REG_OFFSET);
-
-	return cnt ? 0 : TIOCSER_TEMT;
+	return UART_GET_FIFO_CNT(port) ? 0 : TIOCSER_TEMT;
 } 
 
 /**
@@ -218,8 +215,7 @@ static void mux_read(struct uart_port *port)
 	__u32 start_count = port->icount.rx;
 
 	while(1) {
-		data = __raw_readl((unsigned long)port->membase
-						+ IO_DATA_REG_OFFSET);
+		data = __raw_readl(port->membase + IO_DATA_REG_OFFSET);
 
 		if (MUX_STATUS(data))
 			continue;
@@ -481,6 +477,13 @@ static int __init mux_probe(struct parisc_device *dev)
 		port->ops	= &mux_pops;
 		port->flags	= UPF_BOOT_AUTOCONF;
 		port->line	= port_cnt;
+
+		/* The port->timeout needs to match what is present in
+		 * uart_wait_until_sent in serial_core.c.  Otherwise
+		 * the time spent in msleep_interruptable will be very
+		 * long, causing the appearance of a console hang.
+		 */
+		port->timeout   = HZ / 50;
 		spin_lock_init(&port->lock);
 		status = uart_add_one_port(&mux_driver, port);
 		BUG_ON(status);

include/asm-parisc/irq.h

@@ -8,6 +8,7 @@
 #define _ASM_PARISC_IRQ_H
 
 #include <linux/config.h>
+#include <linux/cpumask.h>
 #include <asm/types.h>
 
 #define NO_IRQ		(-1)
@@ -49,10 +50,10 @@ extern int txn_alloc_irq(unsigned int nbits);
 extern int txn_claim_irq(int);
 extern unsigned int txn_alloc_data(unsigned int);
 extern unsigned long txn_alloc_addr(unsigned int);
+extern unsigned long txn_affinity_addr(unsigned int irq, int cpu);
 
 extern int cpu_claim_irq(unsigned int irq, struct hw_interrupt_type *, void *);
-
-extern int cpu_claim_irq(unsigned int irq, struct hw_interrupt_type *, void *);
+extern int cpu_check_affinity(unsigned int irq, cpumask_t *dest);
 
 /* soft power switch support (power.c) */
 extern struct tasklet_struct power_tasklet;

include/asm-parisc/smp.h

@@ -29,6 +29,7 @@ extern cpumask_t cpu_online_map;
 #define cpu_logical_map(cpu)	(cpu)
 
 extern void smp_send_reschedule(int cpu);
+extern void smp_send_all_nop(void);
 
 #endif /* !ASSEMBLY */
 
@@ -53,7 +54,11 @@ extern unsigned long cpu_present_mask;
 
 #define raw_smp_processor_id()	(current_thread_info()->cpu)
 
-#endif /* CONFIG_SMP */
+#else /* CONFIG_SMP */
+
+static inline void smp_send_all_nop(void) { return; }
+
+#endif
 
 #define NO_PROC_ID		0xFF		/* No processor magic marker */
 #define ANY_PROC_ID		0xFF		/* Any processor magic marker */

include/asm-parisc/spinlock.h

@@ -11,18 +11,25 @@ static inline int __raw_spin_is_locked(raw_spinlock_t *x)
 	return *a == 0;
 }
 
-#define __raw_spin_lock_flags(lock, flags) __raw_spin_lock(lock)
+#define __raw_spin_lock(lock) __raw_spin_lock_flags(lock, 0)
 #define __raw_spin_unlock_wait(x) \
 		do { cpu_relax(); } while (__raw_spin_is_locked(x))
 
-static inline void __raw_spin_lock(raw_spinlock_t *x)
+static inline void __raw_spin_lock_flags(raw_spinlock_t *x,
+					 unsigned long flags)
 {
 	volatile unsigned int *a;
 
 	mb();
 	a = __ldcw_align(x);
 	while (__ldcw(a) == 0)
-		while (*a == 0);
+		while (*a == 0)
+			if (flags & PSW_SM_I) {
+				local_irq_enable();
+				cpu_relax();
+				local_irq_disable();
+			} else
+				cpu_relax();
 	mb();
 }
 
@@ -60,26 +67,20 @@ static inline int __raw_spin_trylock(raw_spinlock_t *x)
 
 static  __inline__ void __raw_read_lock(raw_rwlock_t *rw)
 {
-	unsigned long flags;
-	local_irq_save(flags);
 	__raw_spin_lock(&rw->lock);
 
 	rw->counter++;
 
 	__raw_spin_unlock(&rw->lock);
-	local_irq_restore(flags);
 }
 
 static  __inline__ void __raw_read_unlock(raw_rwlock_t *rw)
 {
-	unsigned long flags;
-	local_irq_save(flags);
 	__raw_spin_lock(&rw->lock);
 
 	rw->counter--;
 
 	__raw_spin_unlock(&rw->lock);
-	local_irq_restore(flags);
 }
 
 /* write_lock is less trivial.  We optimistically grab the lock and check

include/asm-parisc/tlbflush.h

@@ -12,21 +12,15 @@
  * N class systems, only one PxTLB inter processor broadcast can be
  * active at any one time on the Merced bus.  This tlb purge
  * synchronisation is fairly lightweight and harmless so we activate
- * it on all SMP systems not just the N class. */
-#ifdef CONFIG_SMP
+ * it on all SMP systems not just the N class.  We also need to have
+ * preemption disabled on uniprocessor machines, and spin_lock does that
+ * nicely.
+ */
 extern spinlock_t pa_tlb_lock;
 
 #define purge_tlb_start(x) spin_lock(&pa_tlb_lock)
 #define purge_tlb_end(x) spin_unlock(&pa_tlb_lock)
 
-#else
-
-#define purge_tlb_start(x) do { } while(0)
-#define purge_tlb_end(x) do { } while (0)
-
-#endif
-
-
 extern void flush_tlb_all(void);
 
 /*
@@ -88,7 +82,6 @@ static inline void flush_tlb_range(struct vm_area_struct *vma,
 	if (npages >= 512)  /* 2MB of space: arbitrary, should be tuned */
 		flush_tlb_all();
 	else {
-		preempt_disable();
 		mtsp(vma->vm_mm->context,1);
 		purge_tlb_start();
 		if (split_tlb) {
@@ -102,7 +95,6 @@ static inline void flush_tlb_range(struct vm_area_struct *vma,
 				pdtlb(start);
 				start += PAGE_SIZE;
 			}
-		preempt_enable();
 		}
 		purge_tlb_end();
 	}

include/linux/mm.h

@@ -940,7 +940,9 @@ unsigned long max_sane_readahead(unsigned long nr);
 
 /* Do stack extension */
 extern int expand_stack(struct vm_area_struct *vma, unsigned long address);
+#ifdef CONFIG_IA64
 extern int expand_upwards(struct vm_area_struct *vma, unsigned long address);
+#endif
 
 /* Look up the first VMA which satisfies  addr < vm_end,  NULL if none. */
 extern struct vm_area_struct * find_vma(struct mm_struct * mm, unsigned long addr);

mm/mmap.c

@@ -1501,7 +1501,7 @@ static int acct_stack_growth(struct vm_area_struct * vma, unsigned long size, un
  * PA-RISC uses this for its stack; IA64 for its Register Backing Store.
  * vma is the last one with address > vma->vm_end.  Have to extend vma.
  */
-#ifdef CONFIG_STACK_GROWSUP
+#ifndef CONFIG_IA64
 static inline
 #endif
 int expand_upwards(struct vm_area_struct *vma, unsigned long address)