18 files changed, 176 insertions, 159 deletions

diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 8474f9e5ca10..42598abf4576 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -954,21 +954,6 @@ intr_return:
 	/* NOTE: Need to enable interrupts incase we schedule. */
 	ssm     PSW_SM_I, %r0
 
-	/* Check for software interrupts */
-
-	.import irq_stat,data
-
-	load32	irq_stat,%r19
-#ifdef CONFIG_SMP
-	mfctl   %cr30,%r1
-	ldw	TI_CPU(%r1),%r1 /* get cpu # - int */
-	/* shift left ____cacheline_aligned (aka L1_CACHE_BYTES) amount
-	** irq_stat[] is defined using ____cacheline_aligned.
-	*/
-	SHLREG	%r1,L1_CACHE_SHIFT,%r20
-	add     %r19,%r20,%r19	/* now have &irq_stat[smp_processor_id()] */
-#endif /* CONFIG_SMP */
-
 intr_check_resched:
 
 	/* check for reschedule */
@@ -2034,10 +2019,9 @@ ENTRY(syscall_exit)
 	STREG     %r28,TASK_PT_GR28(%r1)
 
 #ifdef CONFIG_HPUX
-
 /* <linux/personality.h> cannot be easily included */
 #define PER_HPUX 0x10
-	LDREG     TASK_PERSONALITY(%r1),%r19
+	ldw	TASK_PERSONALITY(%r1),%r19
 
 	/* We can't use "CMPIB<> PER_HPUX" since "im5" field is sign extended */
 	ldo	  -PER_HPUX(%r19), %r19
@@ -2055,24 +2039,6 @@ ENTRY(syscall_exit)
 	 */
 	loadgp
 
-syscall_check_bh:
-
-	/* Check for software interrupts */
-
-	.import irq_stat,data
-
-	load32	irq_stat,%r19
-
-#ifdef CONFIG_SMP
-	/* sched.h: int processor */
-	/* %r26 is used as scratch register to index into irq_stat[] */
-	ldw     TI_CPU-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r26 /* cpu # */
-
-	/* shift left ____cacheline_aligned (aka L1_CACHE_BYTES) bits */
-	SHLREG	%r26,L1_CACHE_SHIFT,%r20
-	add     %r19,%r20,%r19	/* now have &irq_stat[smp_processor_id()] */
-#endif /* CONFIG_SMP */
-
 syscall_check_resched:
 
 	/* check for reschedule */
@@ -2114,7 +2080,7 @@ syscall_restore:
 	/* Are we being ptraced? */
 	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1
 
-	LDREG	TASK_PTRACE(%r1), %r19
+	ldw	TASK_PTRACE(%r1), %r19
 	bb,<	%r19,31,syscall_restore_rfi
 	nop
 
@@ -2244,7 +2210,7 @@ syscall_do_resched:
 #else
 	nop
 #endif
-	b       syscall_check_bh  /* if resched, we start over again */
+	b	syscall_check_resched	/* if resched, we start over again */
 	nop
 ENDPROC(syscall_exit)
 
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index 39dc835bf89e..fd6552c4c08c 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -634,7 +634,7 @@ EXPORT_SYMBOL(pdc_lan_station_id);
  * pdc_stable_read - Read data from Stable Storage.
  * @staddr: Stable Storage address to access.
  * @memaddr: The memory address where Stable Storage data shall be copied.
- * @count: number of bytes to transfert. count is multiple of 4.
+ * @count: number of bytes to transfer. count is multiple of 4.
  *
  * This PDC call reads from the Stable Storage address supplied in staddr
  * and copies count bytes to the memory address memaddr.
@@ -660,7 +660,7 @@ EXPORT_SYMBOL(pdc_stable_read);
  * pdc_stable_write - Write data to Stable Storage.
  * @staddr: Stable Storage address to access.
  * @memaddr: The memory address where Stable Storage data shall be read from.
- * @count: number of bytes to transfert. count is multiple of 4.
+ * @count: number of bytes to transfer. count is multiple of 4.
  *
  * This PDC call reads count bytes from the supplied memaddr address,
  * and copies count bytes to the Stable Storage address staddr.
diff --git a/arch/parisc/kernel/hardware.c b/arch/parisc/kernel/hardware.c
index 18ba4cb9159b..04848b2b381c 100644
--- a/arch/parisc/kernel/hardware.c
+++ b/arch/parisc/kernel/hardware.c
@@ -38,7 +38,7 @@
  *	so don't reference this table after starting the init process
  */
  
-static struct hp_hardware hp_hardware_list[] __initdata = {
+static struct hp_hardware hp_hardware_list[] __devinitdata = {
 	{HPHW_NPROC,0x01,0x4,0x0,"Indigo (840, 930)"},
 	{HPHW_NPROC,0x8,0x4,0x01,"Firefox(825,925)"},
 	{HPHW_NPROC,0xA,0x4,0x01,"Top Gun (835,834,935,635)"},
@@ -1219,7 +1219,7 @@ static struct hp_cpu_type_mask {
 	unsigned short model;
 	unsigned short mask;
 	enum cpu_type cpu;
-} hp_cpu_type_mask_list[] __initdata = {
+} hp_cpu_type_mask_list[] __devinitdata = {
 
 	{ 0x0000, 0x0ff0, pcx    },  /* 0x0000 - 0x000f */
 	{ 0x0048, 0x0ff0, pcxl   },  /* 0x0040 - 0x004f */
@@ -1296,10 +1296,11 @@ static struct hp_cpu_type_mask {
 	{ 0x05f0, 0x0ff0, pcxw2  },  /* 0x05f0 - 0x05ff */
 	{ 0x0600, 0x0fe0, pcxl   },  /* 0x0600 - 0x061f */
 	{ 0x0880, 0x0ff0, mako   },  /* 0x0880 - 0x088f */
+	{ 0x0890, 0x0ff0, mako2  },  /* 0x0890 - 0x089f */
 	{ 0x0000, 0x0000, pcx    }	/* terminate table */
 };
 
-char *cpu_name_version[][2] = {
+const char * const cpu_name_version[][2] = {
 	[pcx]	= { "PA7000 (PCX)",	"1.0" },
 	[pcxs]	= { "PA7000 (PCX-S)",	"1.1a" },
 	[pcxt]	= { "PA7100 (PCX-T)",	"1.1b" },
@@ -1311,10 +1312,11 @@ char *cpu_name_version[][2] = {
 	[pcxw]	= { "PA8500 (PCX-W)",	"2.0" },
 	[pcxw_]	= { "PA8600 (PCX-W+)",	"2.0" },
 	[pcxw2]	= { "PA8700 (PCX-W2)",	"2.0" },
-	[mako]	= { "PA8800 (Mako)",	"2.0" }
+	[mako]	= { "PA8800 (Mako)",	"2.0" },
+	[mako2] = { "PA8900 (Shortfin)",	"2.0" }
 };
 
-const char * __init
+const char * __devinit
 parisc_hardware_description(struct parisc_device_id *id)
 {
 	struct hp_hardware *listptr;
@@ -1353,7 +1355,7 @@ parisc_hardware_description(struct parisc_device_id *id)
 
 
 /* Interpret hversion (ret[0]) from PDC_MODEL(4)/PDC_MODEL_INFO(0) */
-enum cpu_type __init
+enum cpu_type __cpuinit
 parisc_get_cpu_type(unsigned long hversion)
 {
 	struct hp_cpu_type_mask *ptr;
diff --git a/arch/parisc/kernel/hpmc.S b/arch/parisc/kernel/hpmc.S
index d8baa158d8a0..43b41df0b541 100644
--- a/arch/parisc/kernel/hpmc.S
+++ b/arch/parisc/kernel/hpmc.S
@@ -295,8 +295,5 @@ os_hpmc_6:
 	b .
 	nop
 ENDPROC(os_hpmc)
-
-	/* this label used to compute os_hpmc checksum */
-ENTRY(os_hpmc_end)
-
+ENTRY(os_hpmc_end)	/* this label used to compute os_hpmc checksum */
 	nop
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index c5c9125dacec..76ce5e3b0050 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -46,14 +46,10 @@ extern irqreturn_t ipi_interrupt(int, void *);
 static volatile unsigned long cpu_eiem = 0;
 
 /*
-** ack bitmap ... habitually set to 1, but reset to zero
+** local ACK bitmap ... habitually set to 1, but reset to zero
 ** between ->ack() and ->end() of the interrupt to prevent
 ** re-interruption of a processing interrupt.
 */
-static volatile unsigned long global_ack_eiem = ~0UL;
-/*
-** Local bitmap, same as above but for per-cpu interrupts
-*/
 static DEFINE_PER_CPU(unsigned long, local_ack_eiem) = ~0UL;
 
 static void cpu_disable_irq(unsigned int irq)
@@ -94,13 +90,11 @@ void cpu_ack_irq(unsigned int irq)
 	int cpu = smp_processor_id();
 
 	/* Clear in EIEM so we can no longer process */
-	if (CHECK_IRQ_PER_CPU(irq_desc[irq].status))
-		per_cpu(local_ack_eiem, cpu) &= ~mask;
-	else
-		global_ack_eiem &= ~mask;
+	per_cpu(local_ack_eiem, cpu) &= ~mask;
 
 	/* disable the interrupt */
-	set_eiem(cpu_eiem & global_ack_eiem & per_cpu(local_ack_eiem, cpu));
+	set_eiem(cpu_eiem & per_cpu(local_ack_eiem, cpu));
+
 	/* and now ack it */
 	mtctl(mask, 23);
 }
@@ -111,13 +105,10 @@ void cpu_end_irq(unsigned int irq)
 	int cpu = smp_processor_id();
 
 	/* set it in the eiems---it's no longer in process */
-	if (CHECK_IRQ_PER_CPU(irq_desc[irq].status))
-		per_cpu(local_ack_eiem, cpu) |= mask;
-	else
-		global_ack_eiem |= mask;
+	per_cpu(local_ack_eiem, cpu) |= mask;
 
 	/* enable the interrupt */
-	set_eiem(cpu_eiem & global_ack_eiem & per_cpu(local_ack_eiem, cpu));
+	set_eiem(cpu_eiem & per_cpu(local_ack_eiem, cpu));
 }
 
 #ifdef CONFIG_SMP
@@ -354,8 +345,7 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 	local_irq_disable();
 	irq_enter();
 
-	eirr_val = mfctl(23) & cpu_eiem & global_ack_eiem &
-		per_cpu(local_ack_eiem, cpu);
+	eirr_val = mfctl(23) & cpu_eiem & per_cpu(local_ack_eiem, cpu);
 	if (!eirr_val)
 		goto set_out;
 	irq = eirr_to_irq(eirr_val);
@@ -381,7 +371,7 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 	return;
 
  set_out:
-	set_eiem(cpu_eiem & global_ack_eiem & per_cpu(local_ack_eiem, cpu));
+	set_eiem(cpu_eiem & per_cpu(local_ack_eiem, cpu));
 	goto out;
 }
 
diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index 0c3aecb85a5c..23c1388df1f5 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -21,6 +21,7 @@
 #include <linux/mm.h>
 #include <linux/pci.h>
 #include <linux/proc_fs.h>
+#include <linux/seq_file.h>
 #include <linux/slab.h>
 #include <linux/string.h>
 #include <linux/types.h>
@@ -34,7 +35,6 @@
 #include <asm/tlbflush.h>	/* for purge_tlb_*() macros */
 
 static struct proc_dir_entry * proc_gsc_root __read_mostly = NULL;
-static int pcxl_proc_info(char *buffer, char **start, off_t offset, int length);
 static unsigned long pcxl_used_bytes __read_mostly = 0;
 static unsigned long pcxl_used_pages __read_mostly = 0;
 
@@ -330,6 +330,54 @@ pcxl_free_range(unsigned long vaddr, size_t size)
 	dump_resmap();
 }
 
+static int proc_pcxl_dma_show(struct seq_file *m, void *v)
+{
+#if 0
+	u_long i = 0;
+	unsigned long *res_ptr = (u_long *)pcxl_res_map;
+#endif
+	unsigned long total_pages = pcxl_res_size << 3;   /* 8 bits per byte */
+
+	seq_printf(m, "\nDMA Mapping Area size    : %d bytes (%ld pages)\n",
+		PCXL_DMA_MAP_SIZE, total_pages);
+
+	seq_printf(m, "Resource bitmap : %d bytes\n", pcxl_res_size);
+
+	seq_puts(m,  "     	  total:    free:    used:   % used:\n");
+	seq_printf(m, "blocks  %8d %8ld %8ld %8ld%%\n", pcxl_res_size,
+		pcxl_res_size - pcxl_used_bytes, pcxl_used_bytes,
+		(pcxl_used_bytes * 100) / pcxl_res_size);
+
+	seq_printf(m, "pages   %8ld %8ld %8ld %8ld%%\n", total_pages,
+		total_pages - pcxl_used_pages, pcxl_used_pages,
+		(pcxl_used_pages * 100 / total_pages));
+
+#if 0
+	seq_puts(m, "\nResource bitmap:");
+
+	for(; i < (pcxl_res_size / sizeof(u_long)); ++i, ++res_ptr) {
+		if ((i & 7) == 0)
+		    seq_puts(m,"\n   ");
+		seq_printf(m, "%s %08lx", buf, *res_ptr);
+	}
+#endif
+	seq_putc(m, '\n');
+	return 0;
+}
+
+static int proc_pcxl_dma_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, proc_pcxl_dma_show, NULL);
+}
+
+static const struct file_operations proc_pcxl_dma_ops = {
+	.owner		= THIS_MODULE,
+	.open		= proc_pcxl_dma_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
 static int __init
 pcxl_dma_init(void)
 {
@@ -348,9 +396,10 @@ pcxl_dma_init(void)
 			"pcxl_dma_init: Unable to create gsc /proc dir entry\n");
 	else {
 		struct proc_dir_entry* ent;
-		ent = create_proc_info_entry("pcxl_dma", 0,
-				proc_gsc_root, pcxl_proc_info);
-		if (!ent)
+		ent = create_proc_entry("pcxl_dma", 0, proc_gsc_root);
+		if (ent)
+			ent->proc_fops = &proc_pcxl_dma_ops;
+		else
 			printk(KERN_WARNING
 				"pci-dma.c: Unable to create pcxl_dma /proc entry.\n");
 	}
@@ -551,40 +600,3 @@ struct hppa_dma_ops pcx_dma_ops = {
 	.dma_sync_sg_for_cpu =		pa11_dma_sync_sg_for_cpu,
 	.dma_sync_sg_for_device =	pa11_dma_sync_sg_for_device,
 };
-
-
-static int pcxl_proc_info(char *buf, char **start, off_t offset, int len)
-{
-#if 0
-	u_long i = 0;
-	unsigned long *res_ptr = (u_long *)pcxl_res_map;
-#endif
-	unsigned long total_pages = pcxl_res_size << 3;   /* 8 bits per byte */
-
-	sprintf(buf, "\nDMA Mapping Area size    : %d bytes (%ld pages)\n",
-		PCXL_DMA_MAP_SIZE, total_pages);
-	
-	sprintf(buf, "%sResource bitmap : %d bytes\n", buf, pcxl_res_size);
-
-	strcat(buf,  "     	  total:    free:    used:   % used:\n");
-	sprintf(buf, "%sblocks  %8d %8ld %8ld %8ld%%\n", buf, pcxl_res_size,
-		pcxl_res_size - pcxl_used_bytes, pcxl_used_bytes,
-		(pcxl_used_bytes * 100) / pcxl_res_size);
-
-	sprintf(buf, "%spages   %8ld %8ld %8ld %8ld%%\n", buf, total_pages,
-		total_pages - pcxl_used_pages, pcxl_used_pages,
-		(pcxl_used_pages * 100 / total_pages));
-
-#if 0
-	strcat(buf, "\nResource bitmap:");
-
-	for(; i < (pcxl_res_size / sizeof(u_long)); ++i, ++res_ptr) {
-		if ((i & 7) == 0)
-		    strcat(buf,"\n   ");
-		sprintf(buf, "%s %08lx", buf, *res_ptr);
-	}
-#endif
-	strcat(buf, "\n");
-	return strlen(buf);
-}
-
diff --git a/arch/parisc/kernel/perf.c b/arch/parisc/kernel/perf.c
index a46bc62b643e..89d6d5ad44b5 100644
--- a/arch/parisc/kernel/perf.c
+++ b/arch/parisc/kernel/perf.c
@@ -171,7 +171,7 @@ static const uint64_t perf_bitmasks[] = {
 
 /*
  * Write control bitmasks for Pa-8700 processor given
- * somethings have changed slightly.
+ * some things have changed slightly.
  */
 static const uint64_t perf_bitmasks_piranha[] = {
 	0x0000000000000000ul,     /* first dbl word must be zero */
@@ -511,10 +511,12 @@ static int __init perf_init(void)
 	} else if (boot_cpu_data.cpu_type == pcxw ||
 		 boot_cpu_data.cpu_type == pcxw_ ||
 		 boot_cpu_data.cpu_type == pcxw2 ||
-		 boot_cpu_data.cpu_type == mako) {
+		 boot_cpu_data.cpu_type == mako ||
+		 boot_cpu_data.cpu_type == mako2) {
 		perf_processor_interface = CUDA_INTF;
 		if (boot_cpu_data.cpu_type == pcxw2 ||
-		    boot_cpu_data.cpu_type == mako) 
+		    boot_cpu_data.cpu_type == mako ||
+		    boot_cpu_data.cpu_type == mako2)
 			bitmask_array = perf_bitmasks_piranha;
 	} else {
 		perf_processor_interface = UNKNOWN_INTF;
@@ -574,27 +576,27 @@ static int perf_stop_counters(uint32_t *raddr)
 		if (!perf_rdr_read_ubuf(16, userbuf))
 			return -13;
 
-		/* Counter0 is bits 1398 thru 1429 */
+		/* Counter0 is bits 1398 to 1429 */
 		tmp64 =  (userbuf[21] << 22) & 0x00000000ffc00000;
 		tmp64 |= (userbuf[22] >> 42) & 0x00000000003fffff;
 		/* OR sticky0 (bit 1430) to counter0 bit 32 */
 		tmp64 |= (userbuf[22] >> 10) & 0x0000000080000000;
 		raddr[0] = (uint32_t)tmp64;
 
-		/* Counter1 is bits 1431 thru 1462 */
+		/* Counter1 is bits 1431 to 1462 */
 		tmp64 =  (userbuf[22] >> 9) & 0x00000000ffffffff;
 		/* OR sticky1 (bit 1463) to counter1 bit 32 */
 		tmp64 |= (userbuf[22] << 23) & 0x0000000080000000;
 		raddr[1] = (uint32_t)tmp64;
 
-		/* Counter2 is bits 1464 thru 1495 */
+		/* Counter2 is bits 1464 to 1495 */
 		tmp64 =  (userbuf[22] << 24) & 0x00000000ff000000;
 		tmp64 |= (userbuf[23] >> 40) & 0x0000000000ffffff;
 		/* OR sticky2 (bit 1496) to counter2 bit 32 */
 		tmp64 |= (userbuf[23] >> 8) & 0x0000000080000000;
 		raddr[2] = (uint32_t)tmp64;
 		
-		/* Counter3 is bits 1497 thru 1528 */
+		/* Counter3 is bits 1497 to 1528 */
 		tmp64 =  (userbuf[23] >> 7) & 0x00000000ffffffff;
 		/* OR sticky3 (bit 1529) to counter3 bit 32 */
 		tmp64 |= (userbuf[23] << 25) & 0x0000000080000000;
@@ -616,7 +618,7 @@ static int perf_stop_counters(uint32_t *raddr)
 		userbuf[23] = 0;
 
 		/* 
-		 * Write back the zero'ed bytes + the image given
+		 * Write back the zeroed bytes + the image given
 		 * the read was destructive.
 		 */
 		perf_rdr_write(16, userbuf);
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index 0dd3847f494c..355664812b83 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -381,6 +381,10 @@ get_wchan(struct task_struct *p)
 	struct unwind_frame_info info;
 	unsigned long ip;
 	int count = 0;
+
+	if (!p || p == current || p->state == TASK_RUNNING)
+		return 0;
+
 	/*
 	 * These bracket the sleeping functions..
 	 */
diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index 566226d78bc9..549f5484342c 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -63,7 +63,7 @@ extern int update_cr16_clocksource(void);	/* from time.c */
 ** will call register_parisc_driver(&cpu_driver) before calling do_inventory().
 **
 ** The goal of consolidating CPU initialization into one place is
-** to make sure all CPU's get initialized the same way.
+** to make sure all CPUs get initialized the same way.
 ** The code path not shared is how PDC hands control of the CPU to the OS.
 ** The initialization of OS data structures is the same (done below).
 */
@@ -76,7 +76,7 @@ extern int update_cr16_clocksource(void);	/* from time.c */
  * (return 1).  If so, initialize the chip and tell other partners in crime 
  * they have work to do.
  */
-static int __init processor_probe(struct parisc_device *dev)
+static int __cpuinit processor_probe(struct parisc_device *dev)
 {
 	unsigned long txn_addr;
 	unsigned long cpuid;
@@ -166,7 +166,7 @@ static int __init processor_probe(struct parisc_device *dev)
 #endif
 
 	/*
-	** CONFIG_SMP: init_smp_config() will attempt to get CPU's into
+	** CONFIG_SMP: init_smp_config() will attempt to get CPUs into
 	** OS control. RENDEZVOUS is the default state - see mem_set above.
 	**	p->state = STATE_RENDEZVOUS;
 	*/
@@ -334,7 +334,7 @@ int __init init_per_cpu(int cpunum)
 }
 
 /*
- * Display cpu info for all cpu's.
+ * Display CPU info for all CPUs.
  */
 int
 show_cpuinfo (struct seq_file *m, void *v)
@@ -381,19 +381,19 @@ show_cpuinfo (struct seq_file *m, void *v)
 	return 0;
 }
 
-static struct parisc_device_id processor_tbl[] __read_mostly = {
+static const struct parisc_device_id processor_tbl[] = {
 	{ HPHW_NPROC, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, SVERSION_ANY_ID },
 	{ 0, }
 };
 
-static struct parisc_driver cpu_driver __read_mostly = {
+static struct parisc_driver cpu_driver = {
 	.name		= "CPU",
 	.id_table	= processor_tbl,
 	.probe		= processor_probe
 };
 
 /**
- * processor_init - Processor initalization procedure.
+ * processor_init - Processor initialization procedure.
  *
  * Register this driver.
  */
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 9818919571fd..c44b8c51f5d1 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -45,7 +45,7 @@
 #include <asm/io.h>
 #include <asm/setup.h>
 
-char	__initdata command_line[COMMAND_LINE_SIZE];
+static char __initdata command_line[COMMAND_LINE_SIZE];
 
 /* Intended for ccio/sba/cpu statistics under /proc/bus/{runway|gsc} */
 struct proc_dir_entry * proc_runway_root __read_mostly = NULL;
@@ -162,7 +162,7 @@ void __init setup_arch(char **cmdline_p)
 }
 
 /*
- * Display cpu info for all cpu's.
+ * Display CPU info for all CPUs.
  * for parisc this is in processor.c
  */
 extern int show_cpuinfo (struct seq_file *m, void *v);
@@ -225,6 +225,7 @@ static void __init parisc_proc_mkdir(void)
                 }
                 break;
 	case mako:
+	case mako2:
                 if (NULL == proc_mckinley_root)
                 {
                         proc_mckinley_root = proc_mkdir("bus/mckinley", NULL);
diff --git a/arch/parisc/kernel/signal32.h b/arch/parisc/kernel/signal32.h
index e39b38a67a87..c7800846422c 100644
--- a/arch/parisc/kernel/signal32.h
+++ b/arch/parisc/kernel/signal32.h
@@ -113,7 +113,7 @@ int copy_siginfo_from_user32 (siginfo_t *to, compat_siginfo_t __user *from);
 /* In a deft move of uber-hackery, we decide to carry the top half of all
  * 64-bit registers in a non-portable, non-ABI, hidden structure.
  * Userspace can read the hidden structure if it *wants* but is never
- * guaranteed to be in the same place. Infact the uc_sigmask from the
+ * guaranteed to be in the same place. In fact the uc_sigmask from the
  * ucontext_t structure may push the hidden register file downards
  */
 struct compat_regfile {
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 6ba9257fdb7f..04c7e1d36cea 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -8,7 +8,7 @@
 ** Lots of stuff stolen from arch/alpha/kernel/smp.c
 ** ...and then parisc stole from arch/ia64/kernel/smp.c. Thanks David! :^)
 **
-** Thanks to John Curry and Ullas Ponnadi. I learned alot from their work.
+** Thanks to John Curry and Ullas Ponnadi. I learned a lot from their work.
 ** -grant (1/12/2001)
 **
 **	This program is free software; you can redistribute it and/or modify
@@ -419,7 +419,7 @@ smp_cpu_init(int cpunum)
 		BUG();
 	enter_lazy_tlb(&init_mm, current);
 
-	init_IRQ();   /* make sure no IRQ's are enabled or pending */
+	init_IRQ();   /* make sure no IRQs are enabled or pending */
 	start_cpu_itimer();
 }
 
@@ -461,7 +461,7 @@ void __init smp_callin(void)
 /*
  * Bring one cpu online.
  */
-int __init smp_boot_one_cpu(int cpuid)
+int __cpuinit smp_boot_one_cpu(int cpuid)
 {
 	struct task_struct *idle;
 	long timeout;
@@ -552,7 +552,7 @@ void __devinit smp_prepare_boot_cpu(void)
 
 /*
 ** inventory.c:do_inventory() hasn't yet been run and thus we
-** don't 'discover' the additional CPU's until later.
+** don't 'discover' the additional CPUs until later.
 */
 void __init smp_prepare_cpus(unsigned int max_cpus)
 {
diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c
index ce3245f87fdd..bb23ff71c28e 100644
--- a/arch/parisc/kernel/sys_parisc32.c
+++ b/arch/parisc/kernel/sys_parisc32.c
@@ -311,14 +311,13 @@ struct readdir32_callback {
 	int count;
 };
 
-#define ROUND_UP(x,a)	((__typeof__(x))(((unsigned long)(x) + ((a) - 1)) & ~((a) - 1)))
 #define NAME_OFFSET(de) ((int) ((de)->d_name - (char __user *) (de)))
 static int filldir32 (void *__buf, const char *name, int namlen,
 			loff_t offset, u64 ino, unsigned int d_type)
 {
 	struct linux32_dirent __user * dirent;
 	struct getdents32_callback * buf = (struct getdents32_callback *) __buf;
-	int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 1, 4);
+	int reclen = ALIGN(NAME_OFFSET(dirent) + namlen + 1, 4);
 	u32 d_ino;
 
 	buf->error = -EINVAL;	/* only used if we fail.. */
@@ -350,6 +349,10 @@ sys32_getdents (unsigned int fd, void __user * dirent, unsigned int count)
 	struct getdents32_callback buf;
 	int error;
 
+	error = -EFAULT;
+	if (!access_ok(VERIFY_WRITE, dirent, count))
+		goto out;
+
 	error = -EBADF;
 	file = fget(fd);
 	if (!file)
@@ -366,8 +369,10 @@ sys32_getdents (unsigned int fd, void __user * dirent, unsigned int count)
 	error = buf.error;
 	lastdirent = buf.previous;
 	if (lastdirent) {
-		put_user(file->f_pos, &lastdirent->d_off);
-		error = count - buf.count;
+		if (put_user(file->f_pos, &lastdirent->d_off))
+			error = -EFAULT;
+		else
+			error = count - buf.count;
 	}
 
 out_putf:
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 10859f53e94f..56f6231cb863 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -181,7 +181,7 @@ linux_gateway_entry:
 	/* Are we being ptraced? */
 	mfctl	%cr30, %r1
 	LDREG	TI_TASK(%r1),%r1
-	LDREG	TASK_PTRACE(%r1), %r1
+	ldw	TASK_PTRACE(%r1), %r1
 	bb,<,n	%r1,31,.Ltracesys
 	
 	/* Note!  We cannot use the syscall table that is mapped
@@ -198,7 +198,7 @@ linux_gateway_entry:
 	ldil	L%sys_call_table, %r1
 	ldo     R%sys_call_table(%r1), %r19
 #endif	
-	comiclr,>>=	__NR_Linux_syscalls, %r20, %r0
+	comiclr,>>	__NR_Linux_syscalls, %r20, %r0
 	b,n	.Lsyscall_nosys
 	
 	LDREGX  %r20(%r19), %r19
@@ -501,7 +501,7 @@ lws_compare_and_swap:
 	shlw	%r20, 4, %r20
 	add	%r20, %r28, %r20
 
-# ifdef ENABLE_LWS_DEBUG
+# if ENABLE_LWS_DEBUG
 	/*	
 		DEBUG, check for deadlock! 
 		If the thread register values are the same
@@ -550,7 +550,7 @@ cas_wouldblock:
 		perspective
 	*/
 cas_action:
-#if defined CONFIG_SMP && defined ENABLE_LWS_DEBUG
+#if defined CONFIG_SMP && ENABLE_LWS_DEBUG
 	/* DEBUG */
 	mfctl	%cr27, %r1
 	stw	%r1, 4(%sr2,%r20)
@@ -562,7 +562,7 @@ cas_action:
 #ifdef CONFIG_SMP
 	/* Free lock */
 	stw	%r20, 0(%sr2,%r20)
-# ifdef ENABLE_LWS_DEBUG
+# if ENABLE_LWS_DEBUG
 	/* Clear thread register indicator */
 	stw	%r0, 4(%sr2,%r20)
 # endif
@@ -576,7 +576,7 @@ cas_action:
 #ifdef CONFIG_SMP
 	/* Free lock */
 	stw	%r20, 0(%sr2,%r20)
-# ifdef ENABLE_LWS_DEBUG
+# if ENABLE_LWS_DEBUG
 	stw	%r0, 4(%sr2,%r20)
 # endif
 #endif
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 8bf87e5d9c37..627f3c28ad8c 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -30,11 +30,6 @@
  *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
-#undef ENTRY_SAME
-#undef ENTRY_DIFF
-#undef ENTRY_UHOH
-#undef ENTRY_COMP
-#undef ENTRY_OURS
 #if defined(CONFIG_64BIT) && !defined(SYSCALL_TABLE_64BIT)
 /* Use ENTRY_SAME for 32-bit syscalls which are the same on wide and
  * narrow palinux.  Use ENTRY_DIFF for those where a 32-bit specific
@@ -405,5 +400,16 @@
 	ENTRY_SAME(epoll_pwait)
 	ENTRY_COMP(statfs64)
 	ENTRY_COMP(fstatfs64)
+	ENTRY_COMP(kexec_load)		/* 300 */
+	ENTRY_COMP(utimensat)
+	ENTRY_COMP(signalfd)
+	ENTRY_COMP(timerfd)
+	ENTRY_SAME(eventfd)
+
 	/* Nothing yet */
 
+#undef ENTRY_SAME
+#undef ENTRY_DIFF
+#undef ENTRY_UHOH
+#undef ENTRY_COMP
+#undef ENTRY_OURS
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 07a991aa9b0c..8b3062a5c812 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -191,7 +191,7 @@ int update_cr16_clocksource(void)
 {
 	int change = 0;
 
-	/* since the cr16 cycle counters are not syncronized across CPUs,
+	/* since the cr16 cycle counters are not synchronized across CPUs,
 	   we'll check if we should switch to a safe clocksource: */
 	if (clocksource_cr16.rating != 0 && num_online_cpus() > 1) {
 		clocksource_change_rating(&clocksource_cr16, 0);
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 745ff741490a..f9bca2d74b38 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -302,7 +302,7 @@ static void handle_break(struct pt_regs *regs)
 	if (unlikely(iir == PARISC_BUG_BREAK_INSN && !user_mode(regs))) {
 		/* check if a BUG() or WARN() trapped here.  */
 		enum bug_trap_type tt;
-		tt = report_bug(regs->iaoq[0] & ~3);
+		tt = report_bug(regs->iaoq[0] & ~3, regs);
 		if (tt == BUG_TRAP_TYPE_WARN) {
 			regs->iaoq[0] += 4;
 			regs->iaoq[1] += 4;
@@ -615,7 +615,7 @@ void handle_interruption(int code, struct pt_regs *regs)
 		
 	case 13:
 		/* Conditional Trap
-		   The condition succees in an instruction which traps 
+		   The condition succeeds in an instruction which traps
 		   on condition  */
 		if(user_mode(regs)){
 			si.si_signo = SIGFPE;
@@ -802,13 +802,14 @@ void handle_interruption(int code, struct pt_regs *regs)
 
 int __init check_ivt(void *iva)
 {
+	extern const u32 os_hpmc[];
+	extern const u32 os_hpmc_end[];
+
 	int i;
 	u32 check = 0;
 	u32 *ivap;
 	u32 *hpmcp;
 	u32 length;
-	extern void os_hpmc(void);
-	extern void os_hpmc_end(void);
 
 	if (strcmp((char *)iva, "cows can fly"))
 		return -1;
@@ -820,7 +821,7 @@ int __init check_ivt(void *iva)
 
 	/* Compute Checksum for HPMC handler */
 
-	length = (u32)((unsigned long)os_hpmc_end - (unsigned long)os_hpmc);
+	length = os_hpmc_end - os_hpmc;
 	ivap[7] = length;
 
 	hpmcp = (u32 *)os_hpmc;
diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c
index 89c03707eccc..322167737de7 100644
--- a/arch/parisc/kernel/unwind.c
+++ b/arch/parisc/kernel/unwind.c
@@ -16,6 +16,8 @@
 
 #include <asm/uaccess.h>
 #include <asm/assembly.h>
+#include <asm/asm-offsets.h>
+#include <asm/ptrace.h>
 
 #include <asm/unwind.h>
 
@@ -26,6 +28,8 @@
 #define dbg(x...)
 #endif
 
+#define KERNEL_START (KERNEL_BINARY_TEXT_START - 0x1000)
+
 extern struct unwind_table_entry __start___unwind[];
 extern struct unwind_table_entry __stop___unwind[];
 
@@ -197,6 +201,29 @@ static int unwind_init(void)
 	return 0;
 }
 
+#ifdef CONFIG_64BIT
+#define get_func_addr(fptr) fptr[2]
+#else
+#define get_func_addr(fptr) fptr[0]
+#endif
+
+static int unwind_special(struct unwind_frame_info *info, unsigned long pc, int frame_size)
+{
+	void handle_interruption(int, struct pt_regs *);
+	static unsigned long *hi = (unsigned long)&handle_interruption;
+
+	if (pc == get_func_addr(hi)) {
+		struct pt_regs *regs = (struct pt_regs *)(info->sp - frame_size - PT_SZ_ALGN);
+		dbg("Unwinding through handle_interruption()\n");
+		info->prev_sp = regs->gr[30];
+		info->prev_ip = regs->iaoq[0];
+
+		return 1;
+	}
+
+	return 0;
+}
+
 static void unwind_frame_regs(struct unwind_frame_info *info)
 {
 	const struct unwind_table_entry *e;
@@ -216,8 +243,10 @@ static void unwind_frame_regs(struct unwind_frame_info *info)
 		/* Handle some frequent special cases.... */
 		{
 			char symname[KSYM_NAME_LEN+1];
+			char *modname;
 
-			kallsyms_lookup(info->ip, NULL, NULL, NULL, symname);
+			kallsyms_lookup(info->ip, NULL, NULL, &modname,
+				symname);
 
 			dbg("info->ip = 0x%lx, name = %s\n", info->ip, symname);
 
@@ -308,13 +337,15 @@ static void unwind_frame_regs(struct unwind_frame_info *info)
 			}
 		}
 
-		info->prev_sp = info->sp - frame_size;
-		if (e->Millicode)
-			info->rp = info->r31;
-		else if (rpoffset)
-			info->rp = *(unsigned long *)(info->prev_sp - rpoffset);
-		info->prev_ip = info->rp;
-		info->rp = 0;
+		if (!unwind_special(info, e->region_start, frame_size)) {
+			info->prev_sp = info->sp - frame_size;
+			if (e->Millicode)
+				info->rp = info->r31;
+			else if (rpoffset)
+				info->rp = *(unsigned long *)(info->prev_sp - rpoffset);
+			info->prev_ip = info->rp;
+			info->rp = 0;
+		}
 
 		dbg("analyzing func @ %lx, setting prev_sp=%lx "
 		    "prev_ip=%lx npc=%lx\n", info->ip, info->prev_sp,