Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6:
sparc: Support show_unhandled_signals.
sparc: use __ratelimit
sunxvr500: Additional PCI id for sunxvr500 driver
sparc: use asm-generic/scatterlist.h
sparc64: If 'slot-names' property exist, create sysfs PCI slot information.
sparc: remove trailing space in messages
sparc: remove redundant return statements

arch/sparc/include/asm/scatterlist.h

···
 #ifndef _SPARC_SCATTERLIST_H
 #define _SPARC_SCATTERLIST_H
 
-#include <asm/page.h>
-#include <asm/types.h>
-
-struct scatterlist {
-#ifdef CONFIG_DEBUG_SG
-	unsigned long	sg_magic;
-#endif
-	unsigned long	page_link;
-	unsigned int	offset;
-
-	unsigned int	length;
-
-	dma_addr_t	dma_address;
-	__u32		dma_length;
-};
-
-#define sg_dma_address(sg)	((sg)->dma_address)
 #define sg_dma_len(sg)     	((sg)->dma_length)
 
-#define ISA_DMA_THRESHOLD	(~0UL)
-
-#define ARCH_HAS_SG_CHAIN
+#include <asm-generic/scatterlist.h>
 
 #endif /* !(_SPARC_SCATTERLIST_H) */

arch/sparc/kernel/devices.c

···
 
 	if (ARCH_SUN4C)
 		sun4c_probe_memerr_reg();
-
-	return;
 }

arch/sparc/kernel/leon_kernel.c

···
 
 		if (!(LEON3_BYPASS_LOAD_PA(&leon3_gptimer_regs->config) &
 		      (1<<LEON3_GPTIMER_SEPIRQ))) {
-			prom_printf("irq timer not configured with seperate irqs \n");
+			prom_printf("irq timer not configured with separate irqs\n");
 			BUG();
 		}
 

arch/sparc/kernel/leon_smp.c

···
 	int nrcpu = leon_smp_nrcpus();
 	int me = smp_processor_id();
 
-	printk(KERN_INFO "%d:(%d:%d) cpus mpirq at 0x%x \n", (unsigned int)me,
+	printk(KERN_INFO "%d:(%d:%d) cpus mpirq at 0x%x\n", (unsigned int)me,
 	       (unsigned int)nrcpu, (unsigned int)NR_CPUS,
 	       (unsigned int)&(leon3_irqctrl_regs->mpstatus));
 
···
 			break;
 		udelay(200);
 	}
-	printk(KERN_INFO "Started CPU %d \n", (unsigned int)i);
+	printk(KERN_INFO "Started CPU %d\n", (unsigned int)i);
 
 	if (!(cpu_callin_map[i])) {
 		printk(KERN_ERR "Processor %d is stuck.\n", i);

arch/sparc/kernel/pci.c

···
 	return 0;
 }
 subsys_initcall(pcibios_init);
+
+#ifdef CONFIG_SYSFS
+static void __devinit pci_bus_slot_names(struct device_node *node,
+					 struct pci_bus *bus)
+{
+	const struct pci_slot_names {
+		u32	slot_mask;
+		char	names[0];
+	} *prop;
+	const char *sp;
+	int len, i;
+	u32 mask;
+
+	prop = of_get_property(node, "slot-names", &len);
+	if (!prop)
+		return;
+
+	mask = prop->slot_mask;
+	sp = prop->names;
+
+	if (ofpci_verbose)
+		printk("PCI: Making slots for [%s] mask[0x%02x]\n",
+		       node->full_name, mask);
+
+	i = 0;
+	while (mask) {
+		struct pci_slot *pci_slot;
+		u32 this_bit = 1 << i;
+
+		if (!(mask & this_bit)) {
+			i++;
+			continue;
+		}
+
+		if (ofpci_verbose)
+			printk("PCI: Making slot [%s]\n", sp);
+
+		pci_slot = pci_create_slot(bus, i, sp, NULL);
+		if (IS_ERR(pci_slot))
+			printk(KERN_ERR "PCI: pci_create_slot returned %ld\n",
+			       PTR_ERR(pci_slot));
+
+		sp += strlen(sp) + 1;
+		mask &= ~this_bit;
+		i++;
+	}
+}
+
+static int __init of_pci_slot_init(void)
+{
+	struct pci_bus *pbus = NULL;
+
+	while ((pbus = pci_find_next_bus(pbus)) != NULL) {
+		struct device_node *node;
+
+		if (pbus->self) {
+			struct dev_archdata *sd = pbus->self->sysdata;
+
+			/* PCI->PCI bridge */
+			node = sd->prom_node;
+		} else {
+			struct pci_pbm_info *pbm = pbus->sysdata;
+
+			/* Host PCI controller */
+			node = pbm->op->node;
+		}
+
+		pci_bus_slot_names(node, pbus);
+	}
+
+	return 0;
+}
+
+module_init(of_pci_slot_init);
+#endif

arch/sparc/kernel/pcic.c

···
 			writew(ivec, pcic->pcic_regs+PCI_INT_SELECT_LO);
 		}
  	}
-
-	return;
 }
 
 /*

arch/sparc/kernel/setup_32.c

···
 			     "nop\n\t"
 			     "nop\n\t" : : "r" (prom_tbr));
 	local_irq_restore(flags);
-
-	return;
 }
 
 static unsigned int boot_flags __initdata = 0;

arch/sparc/kernel/sun4d_smp.c

···
 			smp_penguin_ctable.reg_size = 0;
 
 			/* whirrr, whirrr, whirrrrrrrrr... */
-			SMP_PRINTK(("Starting CPU %d at %p \n", i, entry));
+			SMP_PRINTK(("Starting CPU %d at %p\n", i, entry));
 			local_flush_cache_all();
 			prom_startcpu(cpu_node,
 				      &smp_penguin_ctable, 0, (char *)entry);

arch/sparc/kernel/unaligned_64.c

···
 #include <linux/smp.h>
 #include <linux/bitops.h>
 #include <linux/perf_event.h>
+#include <linux/ratelimit.h>
 #include <asm/fpumacro.h>
 
 enum direction {
···
 
 static void log_unaligned(struct pt_regs *regs)
 {
-	static unsigned long count, last_time;
+	static DEFINE_RATELIMIT_STATE(ratelimit, 5 * HZ, 5);
 
-	if (time_after(jiffies, last_time + 5 * HZ))
-		count = 0;
-	if (count < 5) {
-		last_time = jiffies;
-		count++;
+	if (__ratelimit(&ratelimit)) {
 		printk("Kernel unaligned access at TPC[%lx] %pS\n",
 		       regs->tpc, (void *) regs->tpc);
 	}
···
 		return;
 	}
 	advance(regs);
-	return;
 }
 
 void handle_stdfmna(struct pt_regs *regs, unsigned long sfar, unsigned long sfsr)
···
 		return;
 	}
 	advance(regs);
-	return;
 }

arch/sparc/mm/fault_32.c

···
 
 extern int prom_node_root;
 
+int show_unhandled_signals = 1;
+
 /* At boot time we determine these two values necessary for setting
  * up the segment maps and page table entries (pte's).
  */
···
 	return 0;
 }
 
+static inline void
+show_signal_msg(struct pt_regs *regs, int sig, int code,
+		unsigned long address, struct task_struct *tsk)
+{
+	if (!unhandled_signal(tsk, sig))
+		return;
+
+	if (!printk_ratelimit())
+		return;
+
+	printk("%s%s[%d]: segfault at %lx ip %p (rpc %p) sp %p error %x",
+	       task_pid_nr(tsk) > 1 ? KERN_INFO : KERN_EMERG,
+	       tsk->comm, task_pid_nr(tsk), address,
+	       (void *)regs->pc, (void *)regs->u_regs[UREG_I7],
+	       (void *)regs->u_regs[UREG_FP], code);
+
+	print_vma_addr(KERN_CONT " in ", regs->pc);
+
+	printk(KERN_CONT "\n");
+}
+
+static void __do_fault_siginfo(int code, int sig, struct pt_regs *regs,
+			       unsigned long addr)
+{
+	siginfo_t info;
+
+	info.si_signo = sig;
+	info.si_code = code;
+	info.si_errno = 0;
+	info.si_addr = (void __user *) addr;
+	info.si_trapno = 0;
+
+	if (unlikely(show_unhandled_signals))
+		show_signal_msg(regs, sig, info.si_code,
+				addr, current);
+
+	force_sig_info (sig, &info, current);
+}
+
 extern unsigned long safe_compute_effective_address(struct pt_regs *,
 						    unsigned int);
 
···
 	return safe_compute_effective_address(regs, insn);
 }
 
+static noinline void do_fault_siginfo(int code, int sig, struct pt_regs *regs,
+				      int text_fault)
+{
+	unsigned long addr = compute_si_addr(regs, text_fault);
+
+	__do_fault_siginfo(code, sig, regs, addr);
+}
+
 asmlinkage void do_sparc_fault(struct pt_regs *regs, int text_fault, int write,
 			       unsigned long address)
 {
···
 	struct mm_struct *mm = tsk->mm;
 	unsigned int fixup;
 	unsigned long g2;
-	siginfo_t info;
 	int from_user = !(regs->psr & PSR_PS);
-	int fault;
+	int fault, code;
 
 	if(text_fault)
 		address = regs->pc;
···
 	if (!ARCH_SUN4C && address >= TASK_SIZE)
 		goto vmalloc_fault;
 
-	info.si_code = SEGV_MAPERR;
+	code = SEGV_MAPERR;
 
 	/*
 	 * If we're in an interrupt or have no user
···
 	 * we can handle it..
 	 */
 good_area:
-	info.si_code = SEGV_ACCERR;
+	code = SEGV_ACCERR;
 	if(write) {
 		if(!(vma->vm_flags & VM_WRITE))
 			goto bad_area;
···
 
 bad_area_nosemaphore:
 	/* User mode accesses just cause a SIGSEGV */
-	if(from_user) {
-#if 0
-		printk("Fault whee %s [%d]: segfaults at %08lx pc=%08lx\n",
-		       tsk->comm, tsk->pid, address, regs->pc);
-#endif
-		info.si_signo = SIGSEGV;
-		info.si_errno = 0;
-		/* info.si_code set above to make clear whether
-		   this was a SEGV_MAPERR or SEGV_ACCERR fault.  */
-		info.si_addr = (void __user *)compute_si_addr(regs, text_fault);
-		info.si_trapno = 0;
-		force_sig_info (SIGSEGV, &info, tsk);
+	if (from_user) {
+		do_fault_siginfo(code, SIGSEGV, regs, text_fault);
 		return;
 	}
 
···
 
 do_sigbus:
 	up_read(&mm->mmap_sem);
-	info.si_signo = SIGBUS;
-	info.si_errno = 0;
-	info.si_code = BUS_ADRERR;
-	info.si_addr = (void __user *) compute_si_addr(regs, text_fault);
-	info.si_trapno = 0;
-	force_sig_info (SIGBUS, &info, tsk);
+	do_fault_siginfo(BUS_ADRERR, SIGBUS, regs, text_fault);
 	if (!from_user)
 		goto no_context;
 
···
 	struct vm_area_struct *vma;
 	struct task_struct *tsk = current;
 	struct mm_struct *mm = tsk->mm;
-	siginfo_t info;
+	int code;
 
-	info.si_code = SEGV_MAPERR;
+	code = SEGV_MAPERR;
 
-#if 0
-	printk("wf<pid=%d,wr=%d,addr=%08lx>\n",
-	       tsk->pid, write, address);
-#endif
 	down_read(&mm->mmap_sem);
 	vma = find_vma(mm, address);
 	if(!vma)
···
 	if(expand_stack(vma, address))
 		goto bad_area;
 good_area:
-	info.si_code = SEGV_ACCERR;
+	code = SEGV_ACCERR;
 	if(write) {
 		if(!(vma->vm_flags & VM_WRITE))
 			goto bad_area;
···
 	return;
 bad_area:
 	up_read(&mm->mmap_sem);
-#if 0
-	printk("Window whee %s [%d]: segfaults at %08lx\n",
-	       tsk->comm, tsk->pid, address);
-#endif
-	info.si_signo = SIGSEGV;
-	info.si_errno = 0;
-	/* info.si_code set above to make clear whether
-	   this was a SEGV_MAPERR or SEGV_ACCERR fault.  */
-	info.si_addr = (void __user *) address;
-	info.si_trapno = 0;
-	force_sig_info (SIGSEGV, &info, tsk);
+	__do_fault_siginfo(code, SIGSEGV, tsk->thread.kregs, address);
 	return;
 
 do_sigbus:
 	up_read(&mm->mmap_sem);
-	info.si_signo = SIGBUS;
-	info.si_errno = 0;
-	info.si_code = BUS_ADRERR;
-	info.si_addr = (void __user *) address;
-	info.si_trapno = 0;
-	force_sig_info (SIGBUS, &info, tsk);
+	__do_fault_siginfo(BUS_ADRERR, SIGBUS, tsk->thread.kregs, address);
 }
 
 void window_overflow_fault(void)

arch/sparc/mm/fault_64.c

···
 #include <asm/sections.h>
 #include <asm/mmu_context.h>
 
+int show_unhandled_signals = 1;
+
 static inline __kprobes int notify_page_fault(struct pt_regs *regs)
 {
 	int ret = 0;
···
 	return insn;
 }
 
+static inline void
+show_signal_msg(struct pt_regs *regs, int sig, int code,
+		unsigned long address, struct task_struct *tsk)
+{
+	if (!unhandled_signal(tsk, sig))
+		return;
+
+	if (!printk_ratelimit())
+		return;
+
+	printk("%s%s[%d]: segfault at %lx ip %p (rpc %p) sp %p error %x",
+	       task_pid_nr(tsk) > 1 ? KERN_INFO : KERN_EMERG,
+	       tsk->comm, task_pid_nr(tsk), address,
+	       (void *)regs->tpc, (void *)regs->u_regs[UREG_I7],
+	       (void *)regs->u_regs[UREG_FP], code);
+
+	print_vma_addr(KERN_CONT " in ", regs->tpc);
+
+	printk(KERN_CONT "\n");
+}
+
 extern unsigned long compute_effective_address(struct pt_regs *, unsigned int, unsigned int);
 
 static void do_fault_siginfo(int code, int sig, struct pt_regs *regs,
 			     unsigned int insn, int fault_code)
 {
+	unsigned long addr;
 	siginfo_t info;
 
 	info.si_code = code;
 	info.si_signo = sig;
 	info.si_errno = 0;
 	if (fault_code & FAULT_CODE_ITLB)
-		info.si_addr = (void __user *) regs->tpc;
+		addr = regs->tpc;
 	else
-		info.si_addr = (void __user *)
-			compute_effective_address(regs, insn, 0);
+		addr = compute_effective_address(regs, insn, 0);
+	info.si_addr = (void __user *) addr;
 	info.si_trapno = 0;
+
+	if (unlikely(show_unhandled_signals))
+		show_signal_msg(regs, sig, code, addr, current);
+
 	force_sig_info(sig, &info, current);
 }
 

arch/sparc/prom/console_32.c

···
 prom_putchar(char c)
 {
 	while(prom_nbputchar(c) == -1) ;
-	return;
 }

arch/sparc/prom/console_64.c

···
 prom_putchar(char c)
 {
 	prom_nbputchar(c);
-	return;
 }
 
 void

arch/sparc/prom/devmap.c

···
 	(*(romvec->pv_v2devops.v2_dumb_munmap))(vaddr, num_bytes);
 	restore_current();
 	spin_unlock_irqrestore(&prom_lock, flags);
-	return;
 }

arch/sparc/prom/devops_32.c

···
 	};
 	restore_current();
 	spin_unlock_irqrestore(&prom_lock, flags);
-
-	return;
 }

arch/sparc/prom/init_32.c

···
 	       romvec->pv_romvers, prom_rev);
 
 	/* Initialization successful. */
-	return;
 }

arch/sparc/prom/palloc.c

···
 {
 	if((prom_vers == PROM_V0) || (num_bytes == 0x0)) return;
 	(*(romvec->pv_v2devops.v2_dumb_mem_free))(vaddr, num_bytes);
-	return;
 }

arch/sparc/prom/ranges.c

···
 
 	if(num_obio_ranges)
 		prom_printf("PROMLIB: obio_ranges %d\n", num_obio_ranges);
-
-	return;
 }
 
 void

arch/sparc/prom/segment.c

···
 	(*(romvec->pv_setctxt))(ctx, (char *) vaddr, segment);
 	restore_current();
 	spin_unlock_irqrestore(&prom_lock, flags);
-	return;
 }

arch/sparc/prom/tree_32.c

···
 	len = prom_getproperty(node, prop, user_buf, ubuf_size);
 	if(len != -1) return;
 	user_buf[0] = 0;
-	return;
 }
 EXPORT_SYMBOL(prom_getstring);
 

arch/sparc/prom/tree_64.c

···
 	len = prom_getproperty(node, prop, user_buf, ubuf_size);
 	if(len != -1) return;
 	user_buf[0] = 0;
-	return;
 }
 EXPORT_SYMBOL(prom_getstring);
 

drivers/video/sunxvr500.c

···
 
 static struct pci_device_id e3d_pci_table[] = {
 	{	PCI_DEVICE(PCI_VENDOR_ID_3DLABS, 0x7a0),	},
+	{	PCI_DEVICE(0x1091, 0x7a0),			},
 	{	PCI_DEVICE(PCI_VENDOR_ID_3DLABS, 0x7a2),	},
 	{	.vendor = PCI_VENDOR_ID_3DLABS,
 		.device = PCI_ANY_ID,

kernel/sysctl.c

···
 };
 
 static struct ctl_table debug_table[] = {
-#if defined(CONFIG_X86) || defined(CONFIG_PPC)
+#if defined(CONFIG_X86) || defined(CONFIG_PPC) || defined(CONFIG_SPARC)
 	{
 		.procname	= "exception-trace",
 		.data		= &show_unhandled_signals,