Merge branch 'master' of /home/davem/src/GIT/linux-2.6/

21 files changed, 129 insertions, 239 deletions

diff --git a/arch/sparc/include/asm/asm-offsets.h b/arch/sparc/include/asm/asm-offsets.h
new file mode 100644
index 000000000000..d370ee36a182
--- /dev/null
+++ b/arch/sparc/include/asm/asm-offsets.h
@@ -0,0 +1 @@
+#include <generated/asm-offsets.h>
diff --git a/arch/sparc/include/asm/elf_32.h b/arch/sparc/include/asm/elf_32.h
index 381a1b5256d6..4269ca6ad18a 100644
--- a/arch/sparc/include/asm/elf_32.h
+++ b/arch/sparc/include/asm/elf_32.h
@@ -104,8 +104,6 @@ typedef struct {
 #define ELF_CLASS	ELFCLASS32
 #define ELF_DATA	ELFDATA2MSB
 
-#define USE_ELF_CORE_DUMP
-
 #define ELF_EXEC_PAGESIZE	4096
 
 
diff --git a/arch/sparc/include/asm/elf_64.h b/arch/sparc/include/asm/elf_64.h
index d42e393078c4..ff66bb88537b 100644
--- a/arch/sparc/include/asm/elf_64.h
+++ b/arch/sparc/include/asm/elf_64.h
@@ -152,7 +152,6 @@ typedef struct {
 					 (x)->e_machine == EM_SPARC32PLUS)
 #define compat_start_thread		start_thread32
 
-#define USE_ELF_CORE_DUMP
 #define ELF_EXEC_PAGESIZE	PAGE_SIZE
 
 /* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
diff --git a/arch/sparc/include/asm/fcntl.h b/arch/sparc/include/asm/fcntl.h
index d4d9c9d852c3..38f37b333cc7 100644
--- a/arch/sparc/include/asm/fcntl.h
+++ b/arch/sparc/include/asm/fcntl.h
@@ -1,14 +1,12 @@
 #ifndef _SPARC_FCNTL_H
 #define _SPARC_FCNTL_H
 
-/* open/fcntl - O_SYNC is only implemented on blocks devices and on files
-   located on an ext2 file system */
 #define O_APPEND	0x0008
 #define FASYNC		0x0040	/* fcntl, for BSD compatibility */
 #define O_CREAT		0x0200	/* not fcntl */
 #define O_TRUNC		0x0400	/* not fcntl */
 #define O_EXCL		0x0800	/* not fcntl */
-#define O_SYNC		0x2000
+#define O_DSYNC		0x2000	/* used to be O_SYNC, see below */
 #define O_NONBLOCK	0x4000
 #if defined(__sparc__) && defined(__arch64__)
 #define O_NDELAY	0x0004
@@ -20,6 +18,21 @@
 #define O_DIRECT        0x100000 /* direct disk access hint */
 #define O_NOATIME	0x200000
 #define O_CLOEXEC	0x400000
+/*
+ * Before Linux 2.6.33 only O_DSYNC semantics were implemented, but using
+ * the O_SYNC flag.  We continue to use the existing numerical value
+ * for O_DSYNC semantics now, but using the correct symbolic name for it.
+ * This new value is used to request true Posix O_SYNC semantics.  It is
+ * defined in this strange way to make sure applications compiled against
+ * new headers get at least O_DSYNC semantics on older kernels.
+ *
+ * This has the nice side-effect that we can simply test for O_DSYNC
+ * wherever we do not care if O_DSYNC or O_SYNC is used.
+ *
+ * Note: __O_SYNC must never be used directly.
+ */
+#define __O_SYNC	0x800000
+#define O_SYNC		(__O_SYNC|O_DSYNC)
 
 #define F_GETOWN	5	/*  for sockets. */
 #define F_SETOWN	6	/*  for sockets. */
diff --git a/arch/sparc/include/asm/pci_64.h b/arch/sparc/include/asm/pci_64.h
index b63e51c3c3ee..b0576df6ec83 100644
--- a/arch/sparc/include/asm/pci_64.h
+++ b/arch/sparc/include/asm/pci_64.h
@@ -16,8 +16,6 @@
 
 #define PCI_IRQ_NONE		0xffffffff
 
-#define PCI_CACHE_LINE_BYTES	64
-
 static inline void pcibios_set_master(struct pci_dev *dev)
 {
 	/* No special bus mastering setup handling */
diff --git a/arch/sparc/include/asm/spinlock_32.h b/arch/sparc/include/asm/spinlock_32.h
index 857630cff636..7f9b9dba38a6 100644
--- a/arch/sparc/include/asm/spinlock_32.h
+++ b/arch/sparc/include/asm/spinlock_32.h
@@ -10,12 +10,12 @@
 
 #include <asm/psr.h>
 
-#define __raw_spin_is_locked(lock) (*((volatile unsigned char *)(lock)) != 0)
+#define arch_spin_is_locked(lock) (*((volatile unsigned char *)(lock)) != 0)
 
-#define __raw_spin_unlock_wait(lock) \
-	do { while (__raw_spin_is_locked(lock)) cpu_relax(); } while (0)
+#define arch_spin_unlock_wait(lock) \
+	do { while (arch_spin_is_locked(lock)) cpu_relax(); } while (0)
 
-static inline void __raw_spin_lock(raw_spinlock_t *lock)
+static inline void arch_spin_lock(arch_spinlock_t *lock)
 {
 	__asm__ __volatile__(
 	"\n1:\n\t"
@@ -35,7 +35,7 @@ static inline void __raw_spin_lock(raw_spinlock_t *lock)
 	: "g2", "memory", "cc");
 }
 
-static inline int __raw_spin_trylock(raw_spinlock_t *lock)
+static inline int arch_spin_trylock(arch_spinlock_t *lock)
 {
 	unsigned int result;
 	__asm__ __volatile__("ldstub [%1], %0"
@@ -45,7 +45,7 @@ static inline int __raw_spin_trylock(raw_spinlock_t *lock)
 	return (result == 0);
 }
 
-static inline void __raw_spin_unlock(raw_spinlock_t *lock)
+static inline void arch_spin_unlock(arch_spinlock_t *lock)
 {
 	__asm__ __volatile__("stb %%g0, [%0]" : : "r" (lock) : "memory");
 }
@@ -65,7 +65,7 @@ static inline void __raw_spin_unlock(raw_spinlock_t *lock)
  * Sort of like atomic_t's on Sparc, but even more clever.
  *
  *	------------------------------------
- *	| 24-bit counter           | wlock |  raw_rwlock_t
+ *	| 24-bit counter           | wlock |  arch_rwlock_t
  *	------------------------------------
  *	 31                       8 7     0
  *
@@ -76,9 +76,9 @@ static inline void __raw_spin_unlock(raw_spinlock_t *lock)
  *
  * Unfortunately this scheme limits us to ~16,000,000 cpus.
  */
-static inline void arch_read_lock(raw_rwlock_t *rw)
+static inline void __arch_read_lock(arch_rwlock_t *rw)
 {
-	register raw_rwlock_t *lp asm("g1");
+	register arch_rwlock_t *lp asm("g1");
 	lp = rw;
 	__asm__ __volatile__(
 	"mov	%%o7, %%g4\n\t"
@@ -89,16 +89,16 @@ static inline void arch_read_lock(raw_rwlock_t *rw)
 	: "g2", "g4", "memory", "cc");
 }
 
-#define __raw_read_lock(lock) \
+#define arch_read_lock(lock) \
 do {	unsigned long flags; \
 	local_irq_save(flags); \
-	arch_read_lock(lock); \
+	__arch_read_lock(lock); \
 	local_irq_restore(flags); \
 } while(0)
 
-static inline void arch_read_unlock(raw_rwlock_t *rw)
+static inline void __arch_read_unlock(arch_rwlock_t *rw)
 {
-	register raw_rwlock_t *lp asm("g1");
+	register arch_rwlock_t *lp asm("g1");
 	lp = rw;
 	__asm__ __volatile__(
 	"mov	%%o7, %%g4\n\t"
@@ -109,16 +109,16 @@ static inline void arch_read_unlock(raw_rwlock_t *rw)
 	: "g2", "g4", "memory", "cc");
 }
 
-#define __raw_read_unlock(lock) \
+#define arch_read_unlock(lock) \
 do {	unsigned long flags; \
 	local_irq_save(flags); \
-	arch_read_unlock(lock); \
+	__arch_read_unlock(lock); \
 	local_irq_restore(flags); \
 } while(0)
 
-static inline void __raw_write_lock(raw_rwlock_t *rw)
+static inline void arch_write_lock(arch_rwlock_t *rw)
 {
-	register raw_rwlock_t *lp asm("g1");
+	register arch_rwlock_t *lp asm("g1");
 	lp = rw;
 	__asm__ __volatile__(
 	"mov	%%o7, %%g4\n\t"
@@ -130,7 +130,7 @@ static inline void __raw_write_lock(raw_rwlock_t *rw)
 	*(volatile __u32 *)&lp->lock = ~0U;
 }
 
-static inline int __raw_write_trylock(raw_rwlock_t *rw)
+static inline int arch_write_trylock(arch_rwlock_t *rw)
 {
 	unsigned int val;
 
@@ -150,9 +150,9 @@ static inline int __raw_write_trylock(raw_rwlock_t *rw)
 	return (val == 0);
 }
 
-static inline int arch_read_trylock(raw_rwlock_t *rw)
+static inline int __arch_read_trylock(arch_rwlock_t *rw)
 {
-	register raw_rwlock_t *lp asm("g1");
+	register arch_rwlock_t *lp asm("g1");
 	register int res asm("o0");
 	lp = rw;
 	__asm__ __volatile__(
@@ -165,27 +165,27 @@ static inline int arch_read_trylock(raw_rwlock_t *rw)
 	return res;
 }
 
-#define __raw_read_trylock(lock) \
+#define arch_read_trylock(lock) \
 ({	unsigned long flags; \
 	int res; \
 	local_irq_save(flags); \
-	res = arch_read_trylock(lock); \
+	res = __arch_read_trylock(lock); \
 	local_irq_restore(flags); \
 	res; \
 })
 
-#define __raw_write_unlock(rw)	do { (rw)->lock = 0; } while(0)
+#define arch_write_unlock(rw)	do { (rw)->lock = 0; } while(0)
 
-#define __raw_spin_lock_flags(lock, flags) __raw_spin_lock(lock)
-#define __raw_read_lock_flags(rw, flags)   __raw_read_lock(rw)
-#define __raw_write_lock_flags(rw, flags)  __raw_write_lock(rw)
+#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
+#define arch_read_lock_flags(rw, flags)   arch_read_lock(rw)
+#define arch_write_lock_flags(rw, flags)  arch_write_lock(rw)
 
-#define _raw_spin_relax(lock)	cpu_relax()
-#define _raw_read_relax(lock)	cpu_relax()
-#define _raw_write_relax(lock)	cpu_relax()
+#define arch_spin_relax(lock)	cpu_relax()
+#define arch_read_relax(lock)	cpu_relax()
+#define arch_write_relax(lock)	cpu_relax()
 
-#define __raw_read_can_lock(rw) (!((rw)->lock & 0xff))
-#define __raw_write_can_lock(rw) (!(rw)->lock)
+#define arch_read_can_lock(rw) (!((rw)->lock & 0xff))
+#define arch_write_can_lock(rw) (!(rw)->lock)
 
 #endif /* !(__ASSEMBLY__) */
 
diff --git a/arch/sparc/include/asm/spinlock_64.h b/arch/sparc/include/asm/spinlock_64.h
index 43e514783582..073936a8b275 100644
--- a/arch/sparc/include/asm/spinlock_64.h
+++ b/arch/sparc/include/asm/spinlock_64.h
@@ -21,13 +21,13 @@
  * the spinner sections must be pre-V9 branches.
  */
 
-#define __raw_spin_is_locked(lp)	((lp)->lock != 0)
+#define arch_spin_is_locked(lp)	((lp)->lock != 0)
 
-#define __raw_spin_unlock_wait(lp)	\
+#define arch_spin_unlock_wait(lp)	\
 	do {	rmb();			\
 	} while((lp)->lock)
 
-static inline void __raw_spin_lock(raw_spinlock_t *lock)
+static inline void arch_spin_lock(arch_spinlock_t *lock)
 {
 	unsigned long tmp;
 
@@ -46,7 +46,7 @@ static inline void __raw_spin_lock(raw_spinlock_t *lock)
 	: "memory");
 }
 
-static inline int __raw_spin_trylock(raw_spinlock_t *lock)
+static inline int arch_spin_trylock(arch_spinlock_t *lock)
 {
 	unsigned long result;
 
@@ -59,7 +59,7 @@ static inline int __raw_spin_trylock(raw_spinlock_t *lock)
 	return (result == 0UL);
 }
 
-static inline void __raw_spin_unlock(raw_spinlock_t *lock)
+static inline void arch_spin_unlock(arch_spinlock_t *lock)
 {
 	__asm__ __volatile__(
 "	stb		%%g0, [%0]"
@@ -68,7 +68,7 @@ static inline void __raw_spin_unlock(raw_spinlock_t *lock)
 	: "memory");
 }
 
-static inline void __raw_spin_lock_flags(raw_spinlock_t *lock, unsigned long flags)
+static inline void arch_spin_lock_flags(arch_spinlock_t *lock, unsigned long flags)
 {
 	unsigned long tmp1, tmp2;
 
@@ -92,7 +92,7 @@ static inline void __raw_spin_lock_flags(raw_spinlock_t *lock, unsigned long fla
 
 /* Multi-reader locks, these are much saner than the 32-bit Sparc ones... */
 
-static void inline arch_read_lock(raw_rwlock_t *lock)
+static void inline arch_read_lock(arch_rwlock_t *lock)
 {
 	unsigned long tmp1, tmp2;
 
@@ -115,7 +115,7 @@ static void inline arch_read_lock(raw_rwlock_t *lock)
 	: "memory");
 }
 
-static int inline arch_read_trylock(raw_rwlock_t *lock)
+static int inline arch_read_trylock(arch_rwlock_t *lock)
 {
 	int tmp1, tmp2;
 
@@ -136,7 +136,7 @@ static int inline arch_read_trylock(raw_rwlock_t *lock)
 	return tmp1;
 }
 
-static void inline arch_read_unlock(raw_rwlock_t *lock)
+static void inline arch_read_unlock(arch_rwlock_t *lock)
 {
 	unsigned long tmp1, tmp2;
 
@@ -152,7 +152,7 @@ static void inline arch_read_unlock(raw_rwlock_t *lock)
 	: "memory");
 }
 
-static void inline arch_write_lock(raw_rwlock_t *lock)
+static void inline arch_write_lock(arch_rwlock_t *lock)
 {
 	unsigned long mask, tmp1, tmp2;
 
@@ -177,7 +177,7 @@ static void inline arch_write_lock(raw_rwlock_t *lock)
 	: "memory");
 }
 
-static void inline arch_write_unlock(raw_rwlock_t *lock)
+static void inline arch_write_unlock(arch_rwlock_t *lock)
 {
 	__asm__ __volatile__(
 "	stw		%%g0, [%0]"
@@ -186,7 +186,7 @@ static void inline arch_write_unlock(raw_rwlock_t *lock)
 	: "memory");
 }
 
-static int inline arch_write_trylock(raw_rwlock_t *lock)
+static int inline arch_write_trylock(arch_rwlock_t *lock)
 {
 	unsigned long mask, tmp1, tmp2, result;
 
@@ -210,21 +210,21 @@ static int inline arch_write_trylock(raw_rwlock_t *lock)
 	return result;
 }
 
-#define __raw_read_lock(p)	arch_read_lock(p)
-#define __raw_read_lock_flags(p, f) arch_read_lock(p)
-#define __raw_read_trylock(p)	arch_read_trylock(p)
-#define __raw_read_unlock(p)	arch_read_unlock(p)
-#define __raw_write_lock(p)	arch_write_lock(p)
-#define __raw_write_lock_flags(p, f) arch_write_lock(p)
-#define __raw_write_unlock(p)	arch_write_unlock(p)
-#define __raw_write_trylock(p)	arch_write_trylock(p)
-
-#define __raw_read_can_lock(rw)		(!((rw)->lock & 0x80000000UL))
-#define __raw_write_can_lock(rw)	(!(rw)->lock)
-
-#define _raw_spin_relax(lock)	cpu_relax()
-#define _raw_read_relax(lock)	cpu_relax()
-#define _raw_write_relax(lock)	cpu_relax()
+#define arch_read_lock(p)	arch_read_lock(p)
+#define arch_read_lock_flags(p, f) arch_read_lock(p)
+#define arch_read_trylock(p)	arch_read_trylock(p)
+#define arch_read_unlock(p)	arch_read_unlock(p)
+#define arch_write_lock(p)	arch_write_lock(p)
+#define arch_write_lock_flags(p, f) arch_write_lock(p)
+#define arch_write_unlock(p)	arch_write_unlock(p)
+#define arch_write_trylock(p)	arch_write_trylock(p)
+
+#define arch_read_can_lock(rw)		(!((rw)->lock & 0x80000000UL))
+#define arch_write_can_lock(rw)	(!(rw)->lock)
+
+#define arch_spin_relax(lock)	cpu_relax()
+#define arch_read_relax(lock)	cpu_relax()
+#define arch_write_relax(lock)	cpu_relax()
 
 #endif /* !(__ASSEMBLY__) */
 
diff --git a/arch/sparc/include/asm/spinlock_types.h b/arch/sparc/include/asm/spinlock_types.h
index 37cbe01c585b..9c454fdeaad8 100644
--- a/arch/sparc/include/asm/spinlock_types.h
+++ b/arch/sparc/include/asm/spinlock_types.h
@@ -7,14 +7,14 @@
 
 typedef struct {
 	volatile unsigned char lock;
-} raw_spinlock_t;
+} arch_spinlock_t;
 
-#define __RAW_SPIN_LOCK_UNLOCKED	{ 0 }
+#define __ARCH_SPIN_LOCK_UNLOCKED	{ 0 }
 
 typedef struct {
 	volatile unsigned int lock;
-} raw_rwlock_t;
+} arch_rwlock_t;
 
-#define __RAW_RW_LOCK_UNLOCKED		{ 0 }
+#define __ARCH_RW_LOCK_UNLOCKED		{ 0 }
 
 #endif
diff --git a/arch/sparc/kernel/iommu.c b/arch/sparc/kernel/iommu.c
index 7690cc219ecc..5fad94950e76 100644
--- a/arch/sparc/kernel/iommu.c
+++ b/arch/sparc/kernel/iommu.c
@@ -11,6 +11,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/errno.h>
 #include <linux/iommu-helper.h>
+#include <linux/bitmap.h>
 
 #ifdef CONFIG_PCI
 #include <linux/pci.h>
@@ -169,7 +170,7 @@ void iommu_range_free(struct iommu *iommu, dma_addr_t dma_addr, unsigned long np
 
 	entry = (dma_addr - iommu->page_table_map_base) >> IO_PAGE_SHIFT;
 
-	iommu_area_free(arena->map, entry, npages);
+	bitmap_clear(arena->map, entry, npages);
 }
 
 int iommu_table_init(struct iommu *iommu, int tsbsize,
diff --git a/arch/sparc/kernel/irq_64.c b/arch/sparc/kernel/irq_64.c
index ce996f97855f..8d6882bb480a 100644
--- a/arch/sparc/kernel/irq_64.c
+++ b/arch/sparc/kernel/irq_64.c
@@ -176,7 +176,7 @@ int show_interrupts(struct seq_file *p, void *v)
 	}
 
 	if (i < NR_IRQS) {
-		spin_lock_irqsave(&irq_desc[i].lock, flags);
+		raw_spin_lock_irqsave(&irq_desc[i].lock, flags);
 		action = irq_desc[i].action;
 		if (!action)
 			goto skip;
@@ -195,7 +195,7 @@ int show_interrupts(struct seq_file *p, void *v)
 
 		seq_putc(p, '\n');
 skip:
-		spin_unlock_irqrestore(&irq_desc[i].lock, flags);
+		raw_spin_unlock_irqrestore(&irq_desc[i].lock, flags);
 	} else if (i == NR_IRQS) {
 		seq_printf(p, "NMI: ");
 		for_each_online_cpu(j)
@@ -785,14 +785,14 @@ void fixup_irqs(void)
 	for (irq = 0; irq < NR_IRQS; irq++) {
 		unsigned long flags;
 
-		spin_lock_irqsave(&irq_desc[irq].lock, flags);
+		raw_spin_lock_irqsave(&irq_desc[irq].lock, flags);
 		if (irq_desc[irq].action &&
 		    !(irq_desc[irq].status & IRQ_PER_CPU)) {
 			if (irq_desc[irq].chip->set_affinity)
 				irq_desc[irq].chip->set_affinity(irq,
 					irq_desc[irq].affinity);
 		}
-		spin_unlock_irqrestore(&irq_desc[irq].lock, flags);
+		raw_spin_unlock_irqrestore(&irq_desc[irq].lock, flags);
 	}
 
 	tick_ops->disable_irq();
diff --git a/arch/sparc/kernel/ldc.c b/arch/sparc/kernel/ldc.c
index e0ba898e30cf..df39a0f0d27a 100644
--- a/arch/sparc/kernel/ldc.c
+++ b/arch/sparc/kernel/ldc.c
@@ -14,6 +14,7 @@
 #include <linux/interrupt.h>
 #include <linux/list.h>
 #include <linux/init.h>
+#include <linux/bitmap.h>
 
 #include <asm/hypervisor.h>
 #include <asm/iommu.h>
@@ -1875,7 +1876,7 @@ EXPORT_SYMBOL(ldc_read);
 static long arena_alloc(struct ldc_iommu *iommu, unsigned long npages)
 {
 	struct iommu_arena *arena = &iommu->arena;
-	unsigned long n, i, start, end, limit;
+	unsigned long n, start, end, limit;
 	int pass;
 
 	limit = arena->limit;
@@ -1883,7 +1884,7 @@ static long arena_alloc(struct ldc_iommu *iommu, unsigned long npages)
 	pass = 0;
 
 again:
-	n = find_next_zero_bit(arena->map, limit, start);
+	n = bitmap_find_next_zero_area(arena->map, limit, start, npages, 0);
 	end = n + npages;
 	if (unlikely(end >= limit)) {
 		if (likely(pass < 1)) {
@@ -1896,16 +1897,7 @@ again:
 			return -1;
 		}
 	}
-
-	for (i = n; i < end; i++) {
-		if (test_bit(i, arena->map)) {
-			start = i + 1;
-			goto again;
-		}
-	}
-
-	for (i = n; i < end; i++)
-		__set_bit(i, arena->map);
+	bitmap_set(arena->map, n, npages);
 
 	arena->hint = end;
 
diff --git a/arch/sparc/kernel/nmi.c b/arch/sparc/kernel/nmi.c
index b129611590a4..f30f4a1ead23 100644
--- a/arch/sparc/kernel/nmi.c
+++ b/arch/sparc/kernel/nmi.c
@@ -47,7 +47,7 @@ static DEFINE_PER_CPU(short, wd_enabled);
 static int endflag __initdata;
 
 static DEFINE_PER_CPU(unsigned int, last_irq_sum);
-static DEFINE_PER_CPU(local_t, alert_counter);
+static DEFINE_PER_CPU(long, alert_counter);
 static DEFINE_PER_CPU(int, nmi_touch);
 
 void touch_nmi_watchdog(void)
@@ -112,13 +112,13 @@ notrace __kprobes void perfctr_irq(int irq, struct pt_regs *regs)
 		touched = 1;
 	}
 	if (!touched && __get_cpu_var(last_irq_sum) == sum) {
-		local_inc(&__get_cpu_var(alert_counter));
-		if (local_read(&__get_cpu_var(alert_counter)) == 30 * nmi_hz)
+		__this_cpu_inc(per_cpu_var(alert_counter));
+		if (__this_cpu_read(per_cpu_var(alert_counter)) == 30 * nmi_hz)
 			die_nmi("BUG: NMI Watchdog detected LOCKUP",
 				regs, panic_on_timeout);
 	} else {
 		__get_cpu_var(last_irq_sum) = sum;
-		local_set(&__get_cpu_var(alert_counter), 0);
+		__this_cpu_write(per_cpu_var(alert_counter), 0);
 	}
 	if (__get_cpu_var(wd_enabled)) {
 		write_pic(picl_value(nmi_hz));
diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c
index c68648662802..539e83f8e087 100644
--- a/arch/sparc/kernel/pci.c
+++ b/arch/sparc/kernel/pci.c
@@ -1064,7 +1064,6 @@ int pci64_dma_supported(struct pci_dev *pdev, u64 device_mask)
 
 	return (device_mask & dma_addr_mask) == dma_addr_mask;
 }
-EXPORT_SYMBOL(pci_dma_supported);
 
 void pci_resource_to_user(const struct pci_dev *pdev, int bar,
 			  const struct resource *rp, resource_size_t *start,
@@ -1081,3 +1080,10 @@ void pci_resource_to_user(const struct pci_dev *pdev, int bar,
 	*start = rp->start - offset;
 	*end = rp->end - offset;
 }
+
+static int __init pcibios_init(void)
+{
+	pci_dfl_cache_line_size = 64 >> 2;
+	return 0;
+}
+subsys_initcall(pcibios_init);
diff --git a/arch/sparc/kernel/sparc_ksyms_64.c b/arch/sparc/kernel/sparc_ksyms_64.c
index 0f26066a08d9..372ad59c4cba 100644
--- a/arch/sparc/kernel/sparc_ksyms_64.c
+++ b/arch/sparc/kernel/sparc_ksyms_64.c
@@ -38,17 +38,5 @@ EXPORT_SYMBOL(sun4v_niagara_setperf);
 EXPORT_SYMBOL(sun4v_niagara2_getperf);
 EXPORT_SYMBOL(sun4v_niagara2_setperf);
 
-#ifdef CONFIG_PCI
-/* inline functions in asm/pci_64.h */
-EXPORT_SYMBOL(pci_alloc_consistent);
-EXPORT_SYMBOL(pci_free_consistent);
-EXPORT_SYMBOL(pci_map_single);
-EXPORT_SYMBOL(pci_unmap_single);
-EXPORT_SYMBOL(pci_map_sg);
-EXPORT_SYMBOL(pci_unmap_sg);
-EXPORT_SYMBOL(pci_dma_sync_single_for_cpu);
-EXPORT_SYMBOL(pci_dma_sync_sg_for_cpu);
-#endif
-
 /* Exporting a symbol from /init/main.c */
 EXPORT_SYMBOL(saved_command_line);
diff --git a/arch/sparc/kernel/sys_sparc32.c b/arch/sparc/kernel/sys_sparc32.c
index 00abe87e5b51..dc0ac197e7e2 100644
--- a/arch/sparc/kernel/sys_sparc32.c
+++ b/arch/sparc/kernel/sys_sparc32.c
@@ -564,28 +564,6 @@ asmlinkage long sparc32_open(const char __user *filename,
 	return do_sys_open(AT_FDCWD, filename, flags, mode);
 }
 
-extern unsigned long do_mremap(unsigned long addr,
-	unsigned long old_len, unsigned long new_len,
-	unsigned long flags, unsigned long new_addr);
-                
-asmlinkage unsigned long sys32_mremap(unsigned long addr,
-	unsigned long old_len, unsigned long new_len,
-	unsigned long flags, u32 __new_addr)
-{
-	unsigned long ret = -EINVAL;
-	unsigned long new_addr = __new_addr;
-
-	if (unlikely(sparc_mmap_check(addr, old_len)))
-		goto out;
-	if (unlikely(sparc_mmap_check(new_addr, new_len)))
-		goto out;
-	down_write(&current->mm->mmap_sem);
-	ret = do_mremap(addr, old_len, new_len, flags, new_addr);
-	up_write(&current->mm->mmap_sem);
-out:
-	return ret;       
-}
-
 long sys32_lookup_dcookie(unsigned long cookie_high,
 			  unsigned long cookie_low,
 			  char __user *buf, size_t len)
diff --git a/arch/sparc/kernel/sys_sparc_32.c b/arch/sparc/kernel/sys_sparc_32.c
index 03035c852a43..3a82e65d8db2 100644
--- a/arch/sparc/kernel/sys_sparc_32.c
+++ b/arch/sparc/kernel/sys_sparc_32.c
@@ -45,7 +45,8 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
 		/* We do not accept a shared mapping if it would violate
 		 * cache aliasing constraints.
 		 */
-		if ((flags & MAP_SHARED) && (addr & (SHMLBA - 1)))
+		if ((flags & MAP_SHARED) &&
+		    ((addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1)))
 			return -EINVAL;
 		return addr;
 	}
@@ -79,15 +80,6 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
 	}
 }
 
-asmlinkage unsigned long sparc_brk(unsigned long brk)
-{
-	if(ARCH_SUN4C) {
-		if ((brk & 0xe0000000) != (current->mm->brk & 0xe0000000))
-			return current->mm->brk;
-	}
-	return sys_brk(brk);
-}
-
 /*
  * sys_pipe() is the normal C calling standard for creating
  * a pipe. It's not the way unix traditionally does this, though.
@@ -234,31 +226,6 @@ int sparc_mmap_check(unsigned long addr, unsigned long len)
 }
 
 /* Linux version of mmap */
-static unsigned long do_mmap2(unsigned long addr, unsigned long len,
-	unsigned long prot, unsigned long flags, unsigned long fd,
-	unsigned long pgoff)
-{
-	struct file * file = NULL;
-	unsigned long retval = -EBADF;
-
-	if (!(flags & MAP_ANONYMOUS)) {
-		file = fget(fd);
-		if (!file)
-			goto out;
-	}
-
-	len = PAGE_ALIGN(len);
-	flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
-
-	down_write(&current->mm->mmap_sem);
-	retval = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
-	up_write(&current->mm->mmap_sem);
-
-	if (file)
-		fput(file);
-out:
-	return retval;
-}
 
 asmlinkage unsigned long sys_mmap2(unsigned long addr, unsigned long len,
 	unsigned long prot, unsigned long flags, unsigned long fd,
@@ -266,14 +233,16 @@ asmlinkage unsigned long sys_mmap2(unsigned long addr, unsigned long len,
 {
 	/* Make sure the shift for mmap2 is constant (12), no matter what PAGE_SIZE
 	   we have. */
-	return do_mmap2(addr, len, prot, flags, fd, pgoff >> (PAGE_SHIFT - 12));
+	return sys_mmap_pgoff(addr, len, prot, flags, fd,
+			      pgoff >> (PAGE_SHIFT - 12));
 }
 
 asmlinkage unsigned long sys_mmap(unsigned long addr, unsigned long len,
 	unsigned long prot, unsigned long flags, unsigned long fd,
 	unsigned long off)
 {
-	return do_mmap2(addr, len, prot, flags, fd, off >> PAGE_SHIFT);
+	/* no alignment check? */
+	return sys_mmap_pgoff(addr, len, prot, flags, fd, off >> PAGE_SHIFT);
 }
 
 long sparc_remap_file_pages(unsigned long start, unsigned long size,
@@ -287,27 +256,6 @@ long sparc_remap_file_pages(unsigned long start, unsigned long size,
 				    (pgoff >> (PAGE_SHIFT - 12)), flags);
 }
 
-extern unsigned long do_mremap(unsigned long addr,
-	unsigned long old_len, unsigned long new_len,
-	unsigned long flags, unsigned long new_addr);
-                
-asmlinkage unsigned long sparc_mremap(unsigned long addr,
-	unsigned long old_len, unsigned long new_len,
-	unsigned long flags, unsigned long new_addr)
-{
-	unsigned long ret = -EINVAL;
-
-	if (unlikely(sparc_mmap_check(addr, old_len)))
-		goto out;
-	if (unlikely(sparc_mmap_check(new_addr, new_len)))
-		goto out;
-	down_write(&current->mm->mmap_sem);
-	ret = do_mremap(addr, old_len, new_len, flags, new_addr);
-	up_write(&current->mm->mmap_sem);
-out:
-	return ret;       
-}
-
 /* we come to here via sys_nis_syscall so it can setup the regs argument */
 asmlinkage unsigned long
 c_sys_nis_syscall (struct pt_regs *regs)
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index e2d102447a43..cfa0e19abe3b 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -317,10 +317,14 @@ bottomup:
 unsigned long get_fb_unmapped_area(struct file *filp, unsigned long orig_addr, unsigned long len, unsigned long pgoff, unsigned long flags)
 {
 	unsigned long align_goal, addr = -ENOMEM;
+	unsigned long (*get_area)(struct file *, unsigned long,
+				  unsigned long, unsigned long, unsigned long);
+
+	get_area = current->mm->get_unmapped_area;
 
 	if (flags & MAP_FIXED) {
 		/* Ok, don't mess with it. */
-		return get_unmapped_area(NULL, orig_addr, len, pgoff, flags);
+		return get_area(NULL, orig_addr, len, pgoff, flags);
 	}
 	flags &= ~MAP_SHARED;
 
@@ -333,7 +337,7 @@ unsigned long get_fb_unmapped_area(struct file *filp, unsigned long orig_addr, u
 		align_goal = (64UL * 1024);
 
 	do {
-		addr = get_unmapped_area(NULL, orig_addr, len + (align_goal - PAGE_SIZE), pgoff, flags);
+		addr = get_area(NULL, orig_addr, len + (align_goal - PAGE_SIZE), pgoff, flags);
 		if (!(addr & ~PAGE_MASK)) {
 			addr = (addr + (align_goal - 1UL)) & ~(align_goal - 1UL);
 			break;
@@ -351,7 +355,7 @@ unsigned long get_fb_unmapped_area(struct file *filp, unsigned long orig_addr, u
 	 * be obtained.
 	 */
 	if (addr & ~PAGE_MASK)
-		addr = get_unmapped_area(NULL, orig_addr, len, pgoff, flags);
+		addr = get_area(NULL, orig_addr, len, pgoff, flags);
 
 	return addr;
 }
@@ -399,18 +403,6 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 	}
 }
 
-SYSCALL_DEFINE1(sparc_brk, unsigned long, brk)
-{
-	/* People could try to be nasty and use ta 0x6d in 32bit programs */
-	if (test_thread_flag(TIF_32BIT) && brk >= STACK_TOP32)
-		return current->mm->brk;
-
-	if (unlikely(straddles_64bit_va_hole(current->mm->brk, brk)))
-		return current->mm->brk;
-
-	return sys_brk(brk);
-}
-                                                                
 /*
  * sys_pipe() is the normal C calling standard for creating
  * a pipe. It's not the way unix traditionally does this, though.
@@ -568,23 +560,13 @@ SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
 		unsigned long, prot, unsigned long, flags, unsigned long, fd,
 		unsigned long, off)
 {
-	struct file * file = NULL;
-	unsigned long retval = -EBADF;
-
-	if (!(flags & MAP_ANONYMOUS)) {
-		file = fget(fd);
-		if (!file)
-			goto out;
-	}
-	flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
-	len = PAGE_ALIGN(len);
+	unsigned long retval = -EINVAL;
 
-	down_write(&current->mm->mmap_sem);
-	retval = do_mmap(file, addr, len, prot, flags, off);
-	up_write(&current->mm->mmap_sem);
-
-	if (file)
-		fput(file);
+	if ((off + PAGE_ALIGN(len)) < off)
+		goto out;
+	if (off & ~PAGE_MASK)
+		goto out;
+	retval = sys_mmap_pgoff(addr, len, prot, flags, fd, off >> PAGE_SHIFT);
 out:
 	return retval;
 }
@@ -614,12 +596,6 @@ SYSCALL_DEFINE5(64_mremap, unsigned long, addr,	unsigned long, old_len,
 
 	if (test_thread_flag(TIF_32BIT))
 		goto out;
-	if (unlikely(new_len >= VA_EXCLUDE_START))
-		goto out;
-	if (unlikely(sparc_mmap_check(addr, old_len)))
-		goto out;
-	if (unlikely(sparc_mmap_check(new_addr, new_len)))
-		goto out;
 
 	down_write(&current->mm->mmap_sem);
 	ret = do_mremap(addr, old_len, new_len, flags, new_addr);
diff --git a/arch/sparc/kernel/systbls.h b/arch/sparc/kernel/systbls.h
index a63c5d2d9849..d2f999ae2b85 100644
--- a/arch/sparc/kernel/systbls.h
+++ b/arch/sparc/kernel/systbls.h
@@ -9,7 +9,6 @@
 struct new_utsname;
 
 extern asmlinkage unsigned long sys_getpagesize(void);
-extern asmlinkage unsigned long sparc_brk(unsigned long brk);
 extern asmlinkage long sparc_pipe(struct pt_regs *regs);
 extern asmlinkage long sys_ipc(unsigned int call, int first,
 			       unsigned long second,
diff --git a/arch/sparc/kernel/systbls_32.S b/arch/sparc/kernel/systbls_32.S
index ceb1530f8aa6..801fc8e5a0e8 100644
--- a/arch/sparc/kernel/systbls_32.S
+++ b/arch/sparc/kernel/systbls_32.S
@@ -19,7 +19,7 @@ sys_call_table:
 /*0*/	.long sys_restart_syscall, sys_exit, sys_fork, sys_read, sys_write
 /*5*/	.long sys_open, sys_close, sys_wait4, sys_creat, sys_link
 /*10*/  .long sys_unlink, sunos_execv, sys_chdir, sys_chown16, sys_mknod
-/*15*/	.long sys_chmod, sys_lchown16, sparc_brk, sys_nis_syscall, sys_lseek
+/*15*/	.long sys_chmod, sys_lchown16, sys_brk, sys_nis_syscall, sys_lseek
 /*20*/	.long sys_getpid, sys_capget, sys_capset, sys_setuid16, sys_getuid16
 /*25*/	.long sys_vmsplice, sys_ptrace, sys_alarm, sys_sigaltstack, sys_pause
 /*30*/	.long sys_utime, sys_lchown, sys_fchown, sys_access, sys_nice
@@ -67,7 +67,7 @@ sys_call_table:
 /*235*/	.long sys_fstatfs64, sys_llseek, sys_mlock, sys_munlock, sys_mlockall
 /*240*/	.long sys_munlockall, sys_sched_setparam, sys_sched_getparam, sys_sched_setscheduler, sys_sched_getscheduler
 /*245*/	.long sys_sched_yield, sys_sched_get_priority_max, sys_sched_get_priority_min, sys_sched_rr_get_interval, sys_nanosleep
-/*250*/	.long sparc_mremap, sys_sysctl, sys_getsid, sys_fdatasync, sys_nfsservctl
+/*250*/	.long sys_mremap, sys_sysctl, sys_getsid, sys_fdatasync, sys_nfsservctl
 /*255*/	.long sys_sync_file_range, sys_clock_settime, sys_clock_gettime, sys_clock_getres, sys_clock_nanosleep
 /*260*/	.long sys_sched_getaffinity, sys_sched_setaffinity, sys_timer_settime, sys_timer_gettime, sys_timer_getoverrun
 /*265*/	.long sys_timer_delete, sys_timer_create, sys_nis_syscall, sys_io_setup, sys_io_destroy
diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S
index cc8e7862e95a..e575b46bd7a9 100644
--- a/arch/sparc/kernel/systbls_64.S
+++ b/arch/sparc/kernel/systbls_64.S
@@ -21,7 +21,7 @@ sys_call_table32:
 /*0*/	.word sys_restart_syscall, sys32_exit, sys_fork, sys_read, sys_write
 /*5*/	.word sys32_open, sys_close, sys32_wait4, sys32_creat, sys_link
 /*10*/  .word sys_unlink, sunos_execv, sys_chdir, sys_chown16, sys32_mknod
-/*15*/	.word sys_chmod, sys_lchown16, sys_sparc_brk, sys32_perfctr, sys32_lseek
+/*15*/	.word sys_chmod, sys_lchown16, sys_brk, sys32_perfctr, sys32_lseek
 /*20*/	.word sys_getpid, sys_capget, sys_capset, sys_setuid16, sys_getuid16
 /*25*/	.word sys32_vmsplice, compat_sys_ptrace, sys_alarm, sys32_sigaltstack, sys_pause
 /*30*/	.word compat_sys_utime, sys_lchown, sys_fchown, sys32_access, sys32_nice
@@ -68,7 +68,7 @@ sys_call_table32:
 	.word compat_sys_fstatfs64, sys_llseek, sys_mlock, sys_munlock, sys32_mlockall
 /*240*/	.word sys_munlockall, sys32_sched_setparam, sys32_sched_getparam, sys32_sched_setscheduler, sys32_sched_getscheduler
 	.word sys_sched_yield, sys32_sched_get_priority_max, sys32_sched_get_priority_min, sys32_sched_rr_get_interval, compat_sys_nanosleep
-/*250*/	.word sys32_mremap, compat_sys_sysctl, sys32_getsid, sys_fdatasync, sys32_nfsservctl
+/*250*/	.word sys_mremap, compat_sys_sysctl, sys32_getsid, sys_fdatasync, sys32_nfsservctl
 	.word sys32_sync_file_range, compat_sys_clock_settime, compat_sys_clock_gettime, compat_sys_clock_getres, sys32_clock_nanosleep
 /*260*/	.word compat_sys_sched_getaffinity, compat_sys_sched_setaffinity, sys32_timer_settime, compat_sys_timer_gettime, sys_timer_getoverrun
 	.word sys_timer_delete, compat_sys_timer_create, sys_ni_syscall, compat_sys_io_setup, sys_io_destroy
@@ -96,7 +96,7 @@ sys_call_table:
 /*0*/	.word sys_restart_syscall, sparc_exit, sys_fork, sys_read, sys_write
 /*5*/	.word sys_open, sys_close, sys_wait4, sys_creat, sys_link
 /*10*/  .word sys_unlink, sys_nis_syscall, sys_chdir, sys_chown, sys_mknod
-/*15*/	.word sys_chmod, sys_lchown, sys_sparc_brk, sys_perfctr, sys_lseek
+/*15*/	.word sys_chmod, sys_lchown, sys_brk, sys_perfctr, sys_lseek
 /*20*/	.word sys_getpid, sys_capget, sys_capset, sys_setuid, sys_getuid
 /*25*/	.word sys_vmsplice, sys_ptrace, sys_alarm, sys_sigaltstack, sys_nis_syscall
 /*30*/	.word sys_utime, sys_nis_syscall, sys_nis_syscall, sys_access, sys_nice
diff --git a/arch/sparc/mm/sun4c.c b/arch/sparc/mm/sun4c.c
index 2ffacd67c424..a89baf0d875a 100644
--- a/arch/sparc/mm/sun4c.c
+++ b/arch/sparc/mm/sun4c.c
@@ -17,6 +17,7 @@
 #include <linux/fs.h>
 #include <linux/seq_file.h>
 #include <linux/scatterlist.h>
+#include <linux/bitmap.h>
 
 #include <asm/sections.h>
 #include <asm/page.h>
@@ -1021,20 +1022,12 @@ static char *sun4c_lockarea(char *vaddr, unsigned long size)
 	npages = (((unsigned long)vaddr & ~PAGE_MASK) +
 		  size + (PAGE_SIZE-1)) >> PAGE_SHIFT;
 
-	scan = 0;
 	local_irq_save(flags);
-	for (;;) {
-		scan = find_next_zero_bit(sun4c_iobuffer_map,
-					  iobuffer_map_size, scan);
-		if ((base = scan) + npages > iobuffer_map_size) goto abend;
-		for (;;) {
-			if (scan >= base + npages) goto found;
-			if (test_bit(scan, sun4c_iobuffer_map)) break;
-			scan++;
-		}
-	}
+	base = bitmap_find_next_zero_area(sun4c_iobuffer_map, iobuffer_map_size,
+						0, npages, 0);
+	if (base >= iobuffer_map_size)
+		goto abend;
 
-found:
 	high = ((base + npages) << PAGE_SHIFT) + sun4c_iobuffer_start;
 	high = SUN4C_REAL_PGDIR_ALIGN(high);
 	while (high > sun4c_iobuffer_high) {