Merge branch 'linus' into x86/cleanups

25 files changed, 236 insertions, 211 deletions

diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 5ddad7bd60ac..0d428278356d 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -77,7 +77,7 @@ libs-y	+= arch/parisc/lib/ `$(CC) -print-libgcc-file-name`
 
 drivers-$(CONFIG_OPROFILE)		+= arch/parisc/oprofile/
 
-PALO := $(shell if which palo; then : ; \
+PALO := $(shell if (which palo 2>&1); then : ; \
 	elif [ -x /sbin/palo ]; then echo /sbin/palo; \
 	fi)
 
diff --git a/arch/parisc/include/asm/Kbuild b/arch/parisc/include/asm/Kbuild
index f88b252e419c..2121d99f8364 100644
--- a/arch/parisc/include/asm/Kbuild
+++ b/arch/parisc/include/asm/Kbuild
@@ -1,3 +1,4 @@
 include include/asm-generic/Kbuild.asm
 
 unifdef-y += pdc.h
+unifdef-y += swab.h
diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
index 57fcc4a5ebb4..edbfe25c5fc1 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -155,14 +155,11 @@ static inline unsigned long __cmpxchg_local(volatile void *ptr,
 #define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
 #endif
 
-/* Note that we need not lock read accesses - aligned word writes/reads
- * are atomic, so a reader never sees unconsistent values.
- *
- * Cache-line alignment would conflict with, for example, linux/module.h
+/*
+ * Note that we need not lock read accesses - aligned word writes/reads
+ * are atomic, so a reader never sees inconsistent values.
  */
 
-typedef struct { volatile int counter; } atomic_t;
-
 /* It's possible to reduce all atomic operations to either
  * __atomic_add_return, atomic_set and atomic_read (the latter
  * is there only for consistency).
@@ -260,8 +257,6 @@ static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)
 
 #ifdef CONFIG_64BIT
 
-typedef struct { volatile s64 counter; } atomic64_t;
-
 #define ATOMIC64_INIT(i) ((atomic64_t) { (i) })
 
 static __inline__ int
diff --git a/arch/parisc/include/asm/byteorder.h b/arch/parisc/include/asm/byteorder.h
index db148313de5d..da66029c4cb2 100644
--- a/arch/parisc/include/asm/byteorder.h
+++ b/arch/parisc/include/asm/byteorder.h
@@ -1,82 +1,7 @@
 #ifndef _PARISC_BYTEORDER_H
 #define _PARISC_BYTEORDER_H
 
-#include <asm/types.h>
-#include <linux/compiler.h>
-
-#ifdef __GNUC__
-
-static __inline__ __attribute_const__ __u16 ___arch__swab16(__u16 x)
-{
-	__asm__("dep %0, 15, 8, %0\n\t"		/* deposit 00ab -> 0bab */
-		"shd %%r0, %0, 8, %0"		/* shift 000000ab -> 00ba */
-		: "=r" (x)
-		: "0" (x));
-	return x;
-}
-
-static __inline__ __attribute_const__ __u32 ___arch__swab24(__u32 x)
-{
-	__asm__("shd %0, %0, 8, %0\n\t"		/* shift xabcxabc -> cxab */
-		"dep %0, 15, 8, %0\n\t"		/* deposit cxab -> cbab */
-		"shd %%r0, %0, 8, %0"		/* shift 0000cbab -> 0cba */
-		: "=r" (x)
-		: "0" (x));
-	return x;
-}
-
-static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x)
-{
-	unsigned int temp;
-	__asm__("shd %0, %0, 16, %1\n\t"	/* shift abcdabcd -> cdab */
-		"dep %1, 15, 8, %1\n\t"		/* deposit cdab -> cbab */
-		"shd %0, %1, 8, %0"		/* shift abcdcbab -> dcba */
-		: "=r" (x), "=&r" (temp)
-		: "0" (x));
-	return x;
-}
-
-
-#if BITS_PER_LONG > 32
-/*
-** From "PA-RISC 2.0 Architecture", HP Professional Books.
-** See Appendix I page 8 , "Endian Byte Swapping".
-**
-** Pretty cool algorithm: (* == zero'd bits)
-**      PERMH   01234567 -> 67452301 into %0
-**      HSHL    67452301 -> 7*5*3*1* into %1
-**      HSHR    67452301 -> *6*4*2*0 into %0
-**      OR      %0 | %1  -> 76543210 into %0 (all done!)
-*/
-static __inline__ __attribute_const__ __u64 ___arch__swab64(__u64 x) {
-	__u64 temp;
-	__asm__("permh,3210 %0, %0\n\t"
-		"hshl %0, 8, %1\n\t"
-		"hshr,u %0, 8, %0\n\t"
-		"or %1, %0, %0"
-		: "=r" (x), "=&r" (temp)
-		: "0" (x));
-	return x;
-}
-#define __arch__swab64(x) ___arch__swab64(x)
-#define __BYTEORDER_HAS_U64__
-#elif !defined(__STRICT_ANSI__)
-static __inline__ __attribute_const__ __u64 ___arch__swab64(__u64 x)
-{
-	__u32 t1 = ___arch__swab32((__u32) x);
-	__u32 t2 = ___arch__swab32((__u32) (x >> 32));
-	return (((__u64) t1 << 32) | t2);
-}
-#define __arch__swab64(x) ___arch__swab64(x)
-#define __BYTEORDER_HAS_U64__
-#endif
-
-#define __arch__swab16(x) ___arch__swab16(x)
-#define __arch__swab24(x) ___arch__swab24(x)
-#define __arch__swab32(x) ___arch__swab32(x)
-
-#endif /* __GNUC__ */
-
+#include <asm/swab.h>
 #include <linux/byteorder/big_endian.h>
 
 #endif /* _PARISC_BYTEORDER_H */
diff --git a/arch/parisc/include/asm/checksum.h b/arch/parisc/include/asm/checksum.h
index e9639ccc3fce..c84b2fcb18a9 100644
--- a/arch/parisc/include/asm/checksum.h
+++ b/arch/parisc/include/asm/checksum.h
@@ -182,7 +182,7 @@ static __inline__ __sum16 csum_ipv6_magic(const struct in6_addr *saddr,
 #endif
 	: "=r" (sum), "=r" (saddr), "=r" (daddr), "=r" (len)
 	: "0" (sum), "1" (saddr), "2" (daddr), "3" (len), "r" (proto)
-	: "r19", "r20", "r21", "r22");
+	: "r19", "r20", "r21", "r22", "memory");
 	return csum_fold(sum);
 }
 
diff --git a/arch/parisc/include/asm/io.h b/arch/parisc/include/asm/io.h
index 55ddb1842107..d3031d1f9d03 100644
--- a/arch/parisc/include/asm/io.h
+++ b/arch/parisc/include/asm/io.h
@@ -4,12 +4,6 @@
 #include <linux/types.h>
 #include <asm/pgtable.h>
 
-extern unsigned long parisc_vmerge_boundary;
-extern unsigned long parisc_vmerge_max_size;
-
-#define BIO_VMERGE_BOUNDARY	parisc_vmerge_boundary
-#define BIO_VMERGE_MAX_SIZE	parisc_vmerge_max_size
-
 #define virt_to_phys(a) ((unsigned long)__pa(a))
 #define phys_to_virt(a) __va(a)
 #define virt_to_bus virt_to_phys
@@ -182,9 +176,9 @@ static inline void __raw_writeq(unsigned long long b, volatile void __iomem *add
 
 /* readb can never be const, so use __fswab instead of le*_to_cpu */
 #define readb(addr) __raw_readb(addr)
-#define readw(addr) __fswab16(__raw_readw(addr))
-#define readl(addr) __fswab32(__raw_readl(addr))
-#define readq(addr) __fswab64(__raw_readq(addr))
+#define readw(addr) le16_to_cpu(__raw_readw(addr))
+#define readl(addr) le32_to_cpu(__raw_readl(addr))
+#define readq(addr) le64_to_cpu(__raw_readq(addr))
 #define writeb(b, addr) __raw_writeb(b, addr)
 #define writew(b, addr) __raw_writew(cpu_to_le16(b), addr)
 #define writel(b, addr) __raw_writel(cpu_to_le32(b), addr)
diff --git a/arch/parisc/include/asm/mmu_context.h b/arch/parisc/include/asm/mmu_context.h
index 85856c74ad1d..354b2aca990e 100644
--- a/arch/parisc/include/asm/mmu_context.h
+++ b/arch/parisc/include/asm/mmu_context.h
@@ -34,16 +34,21 @@ destroy_context(struct mm_struct *mm)
 	mm->context = 0;
 }
 
-static inline void load_context(mm_context_t context)
+static inline unsigned long __space_to_prot(mm_context_t context)
 {
-	mtsp(context, 3);
 #if SPACEID_SHIFT == 0
-	mtctl(context << 1,8);
+	return context << 1;
 #else
-	mtctl(context >> (SPACEID_SHIFT - 1),8);
+	return context >> (SPACEID_SHIFT - 1);
 #endif
 }
 
+static inline void load_context(mm_context_t context)
+{
+	mtsp(context, 3);
+	mtctl(__space_to_prot(context), 8);
+}
+
 static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, struct task_struct *tsk)
 {
 
diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index 3c9d34844c83..9d64df8754ba 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -17,6 +17,7 @@
 #include <asm/ptrace.h>
 #include <asm/types.h>
 #include <asm/system.h>
+#include <asm/percpu.h>
 #endif /* __ASSEMBLY__ */
 
 #define KERNEL_STACK_SIZE 	(4*PAGE_SIZE)
@@ -109,8 +110,7 @@ struct cpuinfo_parisc {
 };
 
 extern struct system_cpuinfo_parisc boot_cpu_data;
-extern struct cpuinfo_parisc cpu_data[NR_CPUS];
-#define current_cpu_data cpu_data[smp_processor_id()]
+DECLARE_PER_CPU(struct cpuinfo_parisc, cpu_data);
 
 #define CPU_HVERSION ((boot_cpu_data.hversion >> 4) & 0x0FFF)
 
diff --git a/arch/parisc/include/asm/swab.h b/arch/parisc/include/asm/swab.h
new file mode 100644
index 000000000000..3ff16c5a3358
--- /dev/null
+++ b/arch/parisc/include/asm/swab.h
@@ -0,0 +1,66 @@
+#ifndef _PARISC_SWAB_H
+#define _PARISC_SWAB_H
+
+#include <asm/types.h>
+#include <linux/compiler.h>
+
+#define __SWAB_64_THRU_32__
+
+static inline __attribute_const__ __u16 __arch_swab16(__u16 x)
+{
+	__asm__("dep %0, 15, 8, %0\n\t"		/* deposit 00ab -> 0bab */
+		"shd %%r0, %0, 8, %0"		/* shift 000000ab -> 00ba */
+		: "=r" (x)
+		: "0" (x));
+	return x;
+}
+#define __arch_swab16 __arch_swab16
+
+static inline __attribute_const__ __u32 __arch_swab24(__u32 x)
+{
+	__asm__("shd %0, %0, 8, %0\n\t"		/* shift xabcxabc -> cxab */
+		"dep %0, 15, 8, %0\n\t"		/* deposit cxab -> cbab */
+		"shd %%r0, %0, 8, %0"		/* shift 0000cbab -> 0cba */
+		: "=r" (x)
+		: "0" (x));
+	return x;
+}
+
+static inline __attribute_const__ __u32 __arch_swab32(__u32 x)
+{
+	unsigned int temp;
+	__asm__("shd %0, %0, 16, %1\n\t"	/* shift abcdabcd -> cdab */
+		"dep %1, 15, 8, %1\n\t"		/* deposit cdab -> cbab */
+		"shd %0, %1, 8, %0"		/* shift abcdcbab -> dcba */
+		: "=r" (x), "=&r" (temp)
+		: "0" (x));
+	return x;
+}
+#define __arch_swab32 __arch_swab32
+
+#if BITS_PER_LONG > 32
+/*
+** From "PA-RISC 2.0 Architecture", HP Professional Books.
+** See Appendix I page 8 , "Endian Byte Swapping".
+**
+** Pretty cool algorithm: (* == zero'd bits)
+**      PERMH   01234567 -> 67452301 into %0
+**      HSHL    67452301 -> 7*5*3*1* into %1
+**      HSHR    67452301 -> *6*4*2*0 into %0
+**      OR      %0 | %1  -> 76543210 into %0 (all done!)
+*/
+static inline __attribute_const__ __u64 __arch_swab64(__u64 x)
+{
+	__u64 temp;
+	__asm__("permh,3210 %0, %0\n\t"
+		"hshl %0, 8, %1\n\t"
+		"hshr,u %0, 8, %0\n\t"
+		"or %1, %0, %0"
+		: "=r" (x), "=&r" (temp)
+		: "0" (x));
+	return x;
+}
+#define __arch_swab64 __arch_swab64
+#endif /* BITS_PER_LONG > 32 */
+
+#endif /* _PARISC_SWAB_H */
diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index 4878b9501f24..1c6dbb6f6e56 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -241,4 +241,6 @@ unsigned long copy_in_user(void __user *dst, const void __user *src, unsigned lo
 #define __copy_to_user_inatomic __copy_to_user
 #define __copy_from_user_inatomic __copy_from_user
 
+int fixup_exception(struct pt_regs *regs);
+
 #endif /* __PARISC_UACCESS_H */
diff --git a/arch/parisc/kernel/drivers.c b/arch/parisc/kernel/drivers.c
index 884b7ce16a3b..994bcd980909 100644
--- a/arch/parisc/kernel/drivers.c
+++ b/arch/parisc/kernel/drivers.c
@@ -549,6 +549,38 @@ static int parisc_generic_match(struct device *dev, struct device_driver *drv)
 	return match_device(to_parisc_driver(drv), to_parisc_device(dev));
 }
 
+static ssize_t make_modalias(struct device *dev, char *buf)
+{
+	const struct parisc_device *padev = to_parisc_device(dev);
+	const struct parisc_device_id *id = &padev->id;
+
+	return sprintf(buf, "parisc:t%02Xhv%04Xrev%02Xsv%08X\n",
+		(u8)id->hw_type, (u16)id->hversion, (u8)id->hversion_rev,
+		(u32)id->sversion);
+}
+
+static int parisc_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+	const struct parisc_device *padev;
+	char modalias[40];
+
+	if (!dev)
+		return -ENODEV;
+
+	padev = to_parisc_device(dev);
+	if (!padev)
+		return -ENODEV;
+
+	if (add_uevent_var(env, "PARISC_NAME=%s", padev->name))
+		return -ENOMEM;
+
+	make_modalias(dev, modalias);
+	if (add_uevent_var(env, "MODALIAS=%s", modalias))
+		return -ENOMEM;
+
+	return 0;
+}
+
 #define pa_dev_attr(name, field, format_string)				\
 static ssize_t name##_show(struct device *dev, struct device_attribute *attr, char *buf)		\
 {									\
@@ -566,12 +598,7 @@ pa_dev_attr_id(sversion, "0x%05x\n");
 
 static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
-	struct parisc_device *padev = to_parisc_device(dev);
-	struct parisc_device_id *id = &padev->id;
-
-	return sprintf(buf, "parisc:t%02Xhv%04Xrev%02Xsv%08X\n",
-		(u8)id->hw_type, (u16)id->hversion, (u8)id->hversion_rev,
-		(u32)id->sversion);
+	return make_modalias(dev, buf);
 }
 
 static struct device_attribute parisc_device_attrs[] = {
@@ -587,6 +614,7 @@ static struct device_attribute parisc_device_attrs[] = {
 struct bus_type parisc_bus_type = {
 	.name = "parisc",
 	.match = parisc_generic_match,
+	.uevent = parisc_uevent,
 	.dev_attrs = parisc_device_attrs,
 	.probe = parisc_driver_probe,
 	.remove = parisc_driver_remove,
diff --git a/arch/parisc/kernel/hpmc.S b/arch/parisc/kernel/hpmc.S
index 2cbf13b3ef11..5595a2f31181 100644
--- a/arch/parisc/kernel/hpmc.S
+++ b/arch/parisc/kernel/hpmc.S
@@ -80,6 +80,7 @@ END(hpmc_pim_data)
 
 	.import intr_save, code
 ENTRY(os_hpmc)
+.os_hpmc:
 
 	/*
 	 * registers modified:
@@ -295,5 +296,10 @@ os_hpmc_6:
 	b .
 	nop
 ENDPROC(os_hpmc)
-ENTRY(os_hpmc_end)	/* this label used to compute os_hpmc checksum */
+.os_hpmc_end:
 	nop
+.data
+.align 4
+	.export os_hpmc_size
+os_hpmc_size:
+	.word .os_hpmc_end-.os_hpmc
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 4cea935e2f99..ac2c822928c7 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -298,7 +298,7 @@ unsigned long txn_affinity_addr(unsigned int irq, int cpu)
 	irq_desc[irq].affinity = cpumask_of_cpu(cpu);
 #endif
 
-	return cpu_data[cpu].txn_addr;
+	return per_cpu(cpu_data, cpu).txn_addr;
 }
 
 
@@ -309,8 +309,9 @@ unsigned long txn_alloc_addr(unsigned int virt_irq)
 	next_cpu++; /* assign to "next" CPU we want this bugger on */
 
 	/* validate entry */
-	while ((next_cpu < NR_CPUS) && (!cpu_data[next_cpu].txn_addr || 
-		!cpu_online(next_cpu)))
+	while ((next_cpu < NR_CPUS) &&
+		(!per_cpu(cpu_data, next_cpu).txn_addr ||
+		 !cpu_online(next_cpu)))
 		next_cpu++;
 
 	if (next_cpu >= NR_CPUS) 
@@ -359,7 +360,7 @@ void do_cpu_irq_mask(struct pt_regs *regs)
 		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);
+			   per_cpu(cpu_data, cpu).hpa);
 		goto set_out;
 	}
 #endif
@@ -421,5 +422,5 @@ void __init init_IRQ(void)
 
 void ack_bad_irq(unsigned int irq)
 {
-	printk("unexpected IRQ %d\n", irq);
+	printk(KERN_WARNING "unexpected IRQ %d\n", irq);
 }
diff --git a/arch/parisc/kernel/pdc_cons.c b/arch/parisc/kernel/pdc_cons.c
index ccb68090781e..1ff366cb9685 100644
--- a/arch/parisc/kernel/pdc_cons.c
+++ b/arch/parisc/kernel/pdc_cons.c
@@ -52,7 +52,7 @@
 #include <linux/tty.h>
 #include <asm/pdc.h>		/* for iodc_call() proto and friends */
 
-static spinlock_t pdc_console_lock = SPIN_LOCK_UNLOCKED;
+static DEFINE_SPINLOCK(pdc_console_lock);
 
 static void pdc_console_write(struct console *co, const char *s, unsigned count)
 {
diff --git a/arch/parisc/kernel/perf.c b/arch/parisc/kernel/perf.c
index f696f57faa15..75099efb3bf3 100644
--- a/arch/parisc/kernel/perf.c
+++ b/arch/parisc/kernel/perf.c
@@ -541,9 +541,9 @@ static int __init perf_init(void)
 	spin_lock_init(&perf_lock);
 
 	/* TODO: this only lets us access the first cpu.. what to do for SMP? */
-	cpu_device = cpu_data[0].dev;
+	cpu_device = per_cpu(cpu_data, 0).dev;
 	printk("Performance monitoring counters enabled for %s\n",
-		cpu_data[0].dev->name);
+		per_cpu(cpu_data, 0).dev->name);
 
 	return 0;
 }
diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index 370086fb8333..ecb609342feb 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -3,7 +3,7 @@
  *    Initial setup-routines for HP 9000 based hardware.
  *
  *    Copyright (C) 1991, 1992, 1995  Linus Torvalds
- *    Modifications for PA-RISC (C) 1999 Helge Deller <deller@gmx.de>
+ *    Modifications for PA-RISC (C) 1999-2008 Helge Deller <deller@gmx.de>
  *    Modifications copyright 1999 SuSE GmbH (Philipp Rumpf)
  *    Modifications copyright 2000 Martin K. Petersen <mkp@mkp.net>
  *    Modifications copyright 2000 Philipp Rumpf <prumpf@tux.org>
@@ -46,7 +46,7 @@
 struct system_cpuinfo_parisc boot_cpu_data __read_mostly;
 EXPORT_SYMBOL(boot_cpu_data);
 
-struct cpuinfo_parisc cpu_data[NR_CPUS] __read_mostly;
+DEFINE_PER_CPU(struct cpuinfo_parisc, cpu_data);
 
 extern int update_cr16_clocksource(void);	/* from time.c */
 
@@ -69,6 +69,23 @@ extern int update_cr16_clocksource(void);	/* from time.c */
 */
 
 /**
+ * init_cpu_profiler - enable/setup per cpu profiling hooks.
+ * @cpunum: The processor instance.
+ *
+ * FIXME: doesn't do much yet...
+ */
+static void __cpuinit
+init_percpu_prof(unsigned long cpunum)
+{
+	struct cpuinfo_parisc *p;
+
+	p = &per_cpu(cpu_data, cpunum);
+	p->prof_counter = 1;
+	p->prof_multiplier = 1;
+}
+
+
+/**
  * processor_probe - Determine if processor driver should claim this device.
  * @dev: The device which has been found.
  *
@@ -147,7 +164,7 @@ static int __cpuinit processor_probe(struct parisc_device *dev)
 	}
 #endif
 
-	p = &cpu_data[cpuid];
+	p = &per_cpu(cpu_data, cpuid);
 	boot_cpu_data.cpu_count++;
 
 	/* initialize counters - CPU 0 gets it_value set in time_init() */
@@ -162,12 +179,9 @@ static int __cpuinit processor_probe(struct parisc_device *dev)
 #ifdef CONFIG_SMP
 	/*
 	** FIXME: review if any other initialization is clobbered
-	**	for boot_cpu by the above memset().
+	**	  for boot_cpu by the above memset().
 	*/
-
-	/* stolen from init_percpu_prof() */
-	cpu_data[cpuid].prof_counter = 1;
-	cpu_data[cpuid].prof_multiplier = 1;
+	init_percpu_prof(cpuid);
 #endif
 
 	/*
@@ -261,19 +275,6 @@ void __init collect_boot_cpu_data(void)
 }
 
 
-/**
- * init_cpu_profiler - enable/setup per cpu profiling hooks.
- * @cpunum: The processor instance.
- *
- * FIXME: doesn't do much yet...
- */
-static inline void __init
-init_percpu_prof(int cpunum)
-{
-	cpu_data[cpunum].prof_counter = 1;
-	cpu_data[cpunum].prof_multiplier = 1;
-}
-
 
 /**
  * init_per_cpu - Handle individual processor initializations.
@@ -293,7 +294,7 @@ init_percpu_prof(int cpunum)
  *
  * o Enable CPU profiling hooks.
  */
-int __init init_per_cpu(int cpunum)
+int __cpuinit init_per_cpu(int cpunum)
 {
 	int ret;
 	struct pdc_coproc_cfg coproc_cfg;
@@ -307,8 +308,8 @@ int __init init_per_cpu(int cpunum)
 		/* FWIW, FP rev/model is a more accurate way to determine
 		** CPU type. CPU rev/model has some ambiguous cases.
 		*/
-		cpu_data[cpunum].fp_rev = coproc_cfg.revision;
-		cpu_data[cpunum].fp_model = coproc_cfg.model;
+		per_cpu(cpu_data, cpunum).fp_rev = coproc_cfg.revision;
+		per_cpu(cpu_data, cpunum).fp_model = coproc_cfg.model;
 
 		printk(KERN_INFO  "FP[%d] enabled: Rev %ld Model %ld\n",
 			cpunum, coproc_cfg.revision, coproc_cfg.model);
@@ -344,16 +345,17 @@ int __init init_per_cpu(int cpunum)
 int
 show_cpuinfo (struct seq_file *m, void *v)
 {
-	int	n;
+	unsigned long cpu;
 
-	for(n=0; n<boot_cpu_data.cpu_count; n++) {
+	for_each_online_cpu(cpu) {
+		const struct cpuinfo_parisc *cpuinfo = &per_cpu(cpu_data, cpu);
 #ifdef CONFIG_SMP
-		if (0 == cpu_data[n].hpa)
+		if (0 == cpuinfo->hpa)
 			continue;
 #endif
-		seq_printf(m, "processor\t: %d\n"
+		seq_printf(m, "processor\t: %lu\n"
 				"cpu family\t: PA-RISC %s\n",
-				 n, boot_cpu_data.family_name);
+				 cpu, boot_cpu_data.family_name);
 
 		seq_printf(m, "cpu\t\t: %s\n",  boot_cpu_data.cpu_name );
 
@@ -365,8 +367,8 @@ show_cpuinfo (struct seq_file *m, void *v)
 		seq_printf(m, "model\t\t: %s\n"
 				"model name\t: %s\n",
 				 boot_cpu_data.pdc.sys_model_name,
-				 cpu_data[n].dev ? 
-				 cpu_data[n].dev->name : "Unknown" );
+				 cpuinfo->dev ?
+				 cpuinfo->dev->name : "Unknown");
 
 		seq_printf(m, "hversion\t: 0x%08x\n"
 			        "sversion\t: 0x%08x\n",
@@ -377,8 +379,8 @@ show_cpuinfo (struct seq_file *m, void *v)
 		show_cache_info(m);
 
 		seq_printf(m, "bogomips\t: %lu.%02lu\n",
-			     cpu_data[n].loops_per_jiffy / (500000 / HZ),
-			     (cpu_data[n].loops_per_jiffy / (5000 / HZ)) % 100);
+			     cpuinfo->loops_per_jiffy / (500000 / HZ),
+			     (cpuinfo->loops_per_jiffy / (5000 / HZ)) % 100);
 
 		seq_printf(m, "software id\t: %ld\n\n",
 				boot_cpu_data.pdc.model.sw_id);
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 7d27853ff8c8..82131ca8e05c 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -58,11 +58,6 @@ int parisc_bus_is_phys __read_mostly = 1;	/* Assume no IOMMU is present */
 EXPORT_SYMBOL(parisc_bus_is_phys);
 #endif
 
-/* This sets the vmerge boundary and size, it's here because it has to
- * be available on all platforms (zero means no-virtual merging) */
-unsigned long parisc_vmerge_boundary = 0;
-unsigned long parisc_vmerge_max_size = 0;
-
 void __init setup_cmdline(char **cmdline_p)
 {
 	extern unsigned int boot_args[];
@@ -321,7 +316,7 @@ static int __init parisc_init(void)
 	
 	processor_init();
 	printk(KERN_INFO "CPU(s): %d x %s at %d.%06d MHz\n",
-			boot_cpu_data.cpu_count,
+			num_present_cpus(),
 			boot_cpu_data.cpu_name,
 			boot_cpu_data.cpu_hz / 1000000,
 			boot_cpu_data.cpu_hz % 1000000	);
@@ -387,8 +382,8 @@ void start_parisc(void)
 	if (ret >= 0 && coproc_cfg.ccr_functional) {
 		mtctl(coproc_cfg.ccr_functional, 10);
 
-		cpu_data[cpunum].fp_rev = coproc_cfg.revision;
-		cpu_data[cpunum].fp_model = coproc_cfg.model;
+		per_cpu(cpu_data, cpunum).fp_rev = coproc_cfg.revision;
+		per_cpu(cpu_data, cpunum).fp_model = coproc_cfg.model;
 
 		asm volatile ("fstd	%fr0,8(%sp)");
 	} else {
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 80bc000523fa..9995d7ed5819 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -56,16 +56,17 @@ static int smp_debug_lvl = 0;
 		if (lvl >= smp_debug_lvl)	\
 			printk(printargs);
 #else
-#define smp_debug(lvl, ...)
+#define smp_debug(lvl, ...)	do { } while(0)
 #endif /* DEBUG_SMP */
 
 DEFINE_SPINLOCK(smp_lock);
 
 volatile struct task_struct *smp_init_current_idle_task;
 
-static volatile int cpu_now_booting __read_mostly = 0;	/* track which CPU is booting */
+/* track which CPU is booting */
+static volatile int cpu_now_booting __cpuinitdata;
 
-static int parisc_max_cpus __read_mostly = 1;
+static int parisc_max_cpus __cpuinitdata = 1;
 
 DEFINE_PER_CPU(spinlock_t, ipi_lock) = SPIN_LOCK_UNLOCKED;
 
@@ -123,7 +124,7 @@ irqreturn_t
 ipi_interrupt(int irq, void *dev_id) 
 {
 	int this_cpu = smp_processor_id();
-	struct cpuinfo_parisc *p = &cpu_data[this_cpu];
+	struct cpuinfo_parisc *p = &per_cpu(cpu_data, this_cpu);
 	unsigned long ops;
 	unsigned long flags;
 
@@ -202,13 +203,13 @@ ipi_interrupt(int irq, void *dev_id)
 static inline void
 ipi_send(int cpu, enum ipi_message_type op)
 {
-	struct cpuinfo_parisc *p = &cpu_data[cpu];
+	struct cpuinfo_parisc *p = &per_cpu(cpu_data, cpu);
 	spinlock_t *lock = &per_cpu(ipi_lock, cpu);
 	unsigned long flags;
 
 	spin_lock_irqsave(lock, flags);
 	p->pending_ipi |= 1 << op;
-	gsc_writel(IPI_IRQ - CPU_IRQ_BASE, cpu_data[cpu].hpa);
+	gsc_writel(IPI_IRQ - CPU_IRQ_BASE, p->hpa);
 	spin_unlock_irqrestore(lock, flags);
 }
 
@@ -224,10 +225,7 @@ send_IPI_mask(cpumask_t mask, enum ipi_message_type op)
 static inline void
 send_IPI_single(int dest_cpu, enum ipi_message_type op)
 {
-	if (dest_cpu == NO_PROC_ID) {
-		BUG();
-		return;
-	}
+	BUG_ON(dest_cpu == NO_PROC_ID);
 
 	ipi_send(dest_cpu, op);
 }
@@ -309,8 +307,7 @@ smp_cpu_init(int cpunum)
 	/* Initialise the idle task for this CPU */
 	atomic_inc(&init_mm.mm_count);
 	current->active_mm = &init_mm;
-	if(current->mm)
-		BUG();
+	BUG_ON(current->mm);
 	enter_lazy_tlb(&init_mm, current);
 
 	init_IRQ();   /* make sure no IRQs are enabled or pending */
@@ -345,6 +342,7 @@ void __init smp_callin(void)
  */
 int __cpuinit smp_boot_one_cpu(int cpuid)
 {
+	const struct cpuinfo_parisc *p = &per_cpu(cpu_data, cpuid);
 	struct task_struct *idle;
 	long timeout;
 
@@ -376,7 +374,7 @@ int __cpuinit smp_boot_one_cpu(int cpuid)
 	smp_init_current_idle_task = idle ;
 	mb();
 
-	printk("Releasing cpu %d now, hpa=%lx\n", cpuid, cpu_data[cpuid].hpa);
+	printk(KERN_INFO "Releasing cpu %d now, hpa=%lx\n", cpuid, p->hpa);
 
 	/*
 	** This gets PDC to release the CPU from a very tight loop.
@@ -387,7 +385,7 @@ int __cpuinit smp_boot_one_cpu(int cpuid)
 	** EIR{0}). MEM_RENDEZ is valid only when it is nonzero and the 
 	** contents of memory are valid."
 	*/
-	gsc_writel(TIMER_IRQ - CPU_IRQ_BASE, cpu_data[cpuid].hpa);
+	gsc_writel(TIMER_IRQ - CPU_IRQ_BASE, p->hpa);
 	mb();
 
 	/* 
@@ -419,12 +417,12 @@ alive:
 	return 0;
 }
 
-void __devinit smp_prepare_boot_cpu(void)
+void __init smp_prepare_boot_cpu(void)
 {
-	int bootstrap_processor=cpu_data[0].cpuid;	/* CPU ID of BSP */
+	int bootstrap_processor = per_cpu(cpu_data, 0).cpuid;
 
 	/* Setup BSP mappings */
-	printk("SMP: bootstrap CPU ID is %d\n",bootstrap_processor);
+	printk(KERN_INFO "SMP: bootstrap CPU ID is %d\n", bootstrap_processor);
 
 	cpu_set(bootstrap_processor, cpu_online_map);
 	cpu_set(bootstrap_processor, cpu_present_map);
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 4d09203bc693..9d46c43a4152 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -60,7 +60,7 @@ irqreturn_t timer_interrupt(int irq, void *dev_id)
 	unsigned long cycles_elapsed, ticks_elapsed;
 	unsigned long cycles_remainder;
 	unsigned int cpu = smp_processor_id();
-	struct cpuinfo_parisc *cpuinfo = &cpu_data[cpu];
+	struct cpuinfo_parisc *cpuinfo = &per_cpu(cpu_data, cpu);
 
 	/* gcc can optimize for "read-only" case with a local clocktick */
 	unsigned long cpt = clocktick;
@@ -213,7 +213,7 @@ void __init start_cpu_itimer(void)
 
 	mtctl(next_tick, 16);		/* kick off Interval Timer (CR16) */
 
-	cpu_data[cpu].it_value = next_tick;
+	per_cpu(cpu_data, cpu).it_value = next_tick;
 }
 
 struct platform_device rtc_parisc_dev = {
diff --git a/arch/parisc/kernel/topology.c b/arch/parisc/kernel/topology.c
index d71cb018a21e..f5159381fdd6 100644
--- a/arch/parisc/kernel/topology.c
+++ b/arch/parisc/kernel/topology.c
@@ -22,14 +22,14 @@
 #include <linux/cpu.h>
 #include <linux/cache.h>
 
-static struct cpu cpu_devices[NR_CPUS] __read_mostly;
+static DEFINE_PER_CPU(struct cpu, cpu_devices);
 
 static int __init topology_init(void)
 {
 	int num;
 
 	for_each_present_cpu(num) {
-		register_cpu(&cpu_devices[num], num);
+		register_cpu(&per_cpu(cpu_devices, num), num);
 	}
 	return 0;
 }
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 4c771cd580ec..ba658d2086f7 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -745,6 +745,10 @@ void handle_interruption(int code, struct pt_regs *regs)
 		/* Fall Through */
 	case 27: 
 		/* Data memory protection ID trap */
+		if (code == 27 && !user_mode(regs) &&
+			fixup_exception(regs))
+			return;
+
 		die_if_kernel("Protection id trap", regs, code);
 		si.si_code = SEGV_MAPERR;
 		si.si_signo = SIGSEGV;
@@ -821,8 +825,8 @@ void handle_interruption(int code, struct pt_regs *regs)
 
 int __init check_ivt(void *iva)
 {
+	extern u32 os_hpmc_size;
 	extern const u32 os_hpmc[];
-	extern const u32 os_hpmc_end[];
 
 	int i;
 	u32 check = 0;
@@ -839,8 +843,7 @@ int __init check_ivt(void *iva)
 	    *ivap++ = 0;
 
 	/* Compute Checksum for HPMC handler */
-
-	length = os_hpmc_end - os_hpmc;
+	length = os_hpmc_size;
 	ivap[7] = length;
 
 	hpmcp = (u32 *)os_hpmc;
diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c
index 6773c582e457..69dad5a850a8 100644
--- a/arch/parisc/kernel/unwind.c
+++ b/arch/parisc/kernel/unwind.c
@@ -372,7 +372,7 @@ void unwind_frame_init_from_blocked_task(struct unwind_frame_info *info, struct
 	struct pt_regs *r = &t->thread.regs;
 	struct pt_regs *r2;
 
-	r2 = kmalloc(sizeof(struct pt_regs), GFP_KERNEL);
+	r2 = kmalloc(sizeof(struct pt_regs), GFP_ATOMIC);
 	if (!r2)
 		return;
 	*r2 = *r;
diff --git a/arch/parisc/lib/iomap.c b/arch/parisc/lib/iomap.c
index 9abed07db7fc..5069e8b2ca71 100644
--- a/arch/parisc/lib/iomap.c
+++ b/arch/parisc/lib/iomap.c
@@ -261,7 +261,7 @@ static const struct iomap_ops iomem_ops = {
 	iomem_write32r,
 };
 
-const struct iomap_ops *iomap_ops[8] = {
+static const struct iomap_ops *iomap_ops[8] = {
 	[0] = &ioport_ops,
 	[7] = &iomem_ops
 };
diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c
index 2d68431fc22e..bbda909c866e 100644
--- a/arch/parisc/lib/memcpy.c
+++ b/arch/parisc/lib/memcpy.c
@@ -275,7 +275,7 @@ handle_store_error:
 
 
 /* Returns 0 for success, otherwise, returns number of bytes not transferred. */
-unsigned long pa_memcpy(void *dstp, const void *srcp, unsigned long len)
+static unsigned long pa_memcpy(void *dstp, const void *srcp, unsigned long len)
 {
 	register unsigned long src, dst, t1, t2, t3;
 	register unsigned char *pcs, *pcd;
diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index b2e3e9a8cece..92c7fa4ecc3f 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -139,13 +139,41 @@ parisc_acctyp(unsigned long code, unsigned int inst)
 			}
 #endif
 
+int fixup_exception(struct pt_regs *regs)
+{
+	const struct exception_table_entry *fix;
+
+	fix = search_exception_tables(regs->iaoq[0]);
+	if (fix) {
+		struct exception_data *d;
+		d = &__get_cpu_var(exception_data);
+		d->fault_ip = regs->iaoq[0];
+		d->fault_space = regs->isr;
+		d->fault_addr = regs->ior;
+
+		regs->iaoq[0] = ((fix->fixup) & ~3);
+		/*
+		 * NOTE: In some cases the faulting instruction
+		 * may be in the delay slot of a branch. We
+		 * don't want to take the branch, so we don't
+		 * increment iaoq[1], instead we set it to be
+		 * iaoq[0]+4, and clear the B bit in the PSW
+		 */
+		regs->iaoq[1] = regs->iaoq[0] + 4;
+		regs->gr[0] &= ~PSW_B; /* IPSW in gr[0] */
+
+		return 1;
+	}
+
+	return 0;
+}
+
 void do_page_fault(struct pt_regs *regs, unsigned long code,
 			      unsigned long address)
 {
 	struct vm_area_struct *vma, *prev_vma;
 	struct task_struct *tsk = current;
 	struct mm_struct *mm = tsk->mm;
-	const struct exception_table_entry *fix;
 	unsigned long acc_type;
 	int fault;
 
@@ -229,32 +257,8 @@ bad_area:
 
 no_context:
 
-	if (!user_mode(regs)) {
-		fix = search_exception_tables(regs->iaoq[0]);
-
-		if (fix) {
-			struct exception_data *d;
-
-			d = &__get_cpu_var(exception_data);
-			d->fault_ip = regs->iaoq[0];
-			d->fault_space = regs->isr;
-			d->fault_addr = regs->ior;
-
-			regs->iaoq[0] = ((fix->fixup) & ~3);
-
-			/*
-			 * NOTE: In some cases the faulting instruction
-			 * may be in the delay slot of a branch. We
-			 * don't want to take the branch, so we don't
-			 * increment iaoq[1], instead we set it to be
-			 * iaoq[0]+4, and clear the B bit in the PSW
-			 */
-
-			regs->iaoq[1] = regs->iaoq[0] + 4;
-			regs->gr[0] &= ~PSW_B; /* IPSW in gr[0] */
-
-			return;
-		}
+	if (!user_mode(regs) && fixup_exception(regs)) {
+		return;
 	}
 
 	parisc_terminate("Bad Address (null pointer deref?)", regs, code, address);