Merge branch 'upstream'

67 files changed, 766 insertions, 512 deletions

diff --git a/include/asm-arm/arch-ixp23xx/uncompress.h b/include/asm-arm/arch-ixp23xx/uncompress.h
index 62623fa9b2f7..013575e6a9a1 100644
--- a/include/asm-arm/arch-ixp23xx/uncompress.h
+++ b/include/asm-arm/arch-ixp23xx/uncompress.h
@@ -16,26 +16,21 @@
 
 #define UART_BASE	((volatile u32 *)IXP23XX_UART1_PHYS)
 
-static __inline__ void putc(char c)
+static inline void putc(char c)
 {
 	int j;
 
 	for (j = 0; j < 0x1000; j++) {
 		if (UART_BASE[UART_LSR] & UART_LSR_THRE)
 			break;
+		barrier();
 	}
 
 	UART_BASE[UART_TX] = c;
 }
 
-static void putstr(const char *s)
+static inline void flush(void)
 {
-	while (*s) {
-		putc(*s);
-		if (*s == '\n')
-			putc('\r');
-		s++;
-	}
 }
 
 #define arch_decomp_setup()
diff --git a/include/asm-arm/arch-pxa/pxa-regs.h b/include/asm-arm/arch-pxa/pxa-regs.h
index 1409c5bd703f..c8f53a71c076 100644
--- a/include/asm-arm/arch-pxa/pxa-regs.h
+++ b/include/asm-arm/arch-pxa/pxa-regs.h
@@ -485,7 +485,7 @@
 #define SACR1_ENLBF	(1 << 5)	/* Enable Loopback */
 #define SACR1_DRPL	(1 << 4) 	/* Disable Replaying Function */
 #define SACR1_DREC	(1 << 3)	/* Disable Recording Function */
-#define SACR1_AMSL	(1 << 1)	/* Specify Alternate Mode */
+#define SACR1_AMSL	(1 << 0)	/* Specify Alternate Mode */
 
 #define SASR0_I2SOFF	(1 << 7)	/* Controller Status */
 #define SASR0_ROR	(1 << 6)	/* Rx FIFO Overrun */
diff --git a/include/asm-arm/arch-pxa/sharpsl.h b/include/asm-arm/arch-pxa/sharpsl.h
index 0b43495d24b4..94cb4982af82 100644
--- a/include/asm-arm/arch-pxa/sharpsl.h
+++ b/include/asm-arm/arch-pxa/sharpsl.h
@@ -27,6 +27,8 @@ struct corgits_machinfo {
  */
 struct corgibl_machinfo {
 	int max_intensity;
+	int default_intensity;
+	int limit_mask;
 	void (*set_bl_intensity)(int intensity);
 };
 extern void corgibl_limit_intensity(int limit);
diff --git a/include/asm-arm/unistd.h b/include/asm-arm/unistd.h
index 8f331bbd39a8..65ac305c2d45 100644
--- a/include/asm-arm/unistd.h
+++ b/include/asm-arm/unistd.h
@@ -308,8 +308,6 @@
 #define __NR_mq_notify			(__NR_SYSCALL_BASE+278)
 #define __NR_mq_getsetattr		(__NR_SYSCALL_BASE+279)
 #define __NR_waitid			(__NR_SYSCALL_BASE+280)
-
-#if defined(__ARM_EABI__)  /* reserve these for un-muxing socketcall */
 #define __NR_socket			(__NR_SYSCALL_BASE+281)
 #define __NR_bind			(__NR_SYSCALL_BASE+282)
 #define __NR_connect			(__NR_SYSCALL_BASE+283)
@@ -327,9 +325,6 @@
 #define __NR_getsockopt			(__NR_SYSCALL_BASE+295)
 #define __NR_sendmsg			(__NR_SYSCALL_BASE+296)
 #define __NR_recvmsg			(__NR_SYSCALL_BASE+297)
-#endif
-
-#if defined(__ARM_EABI__)  /* reserve these for un-muxing ipc */
 #define __NR_semop			(__NR_SYSCALL_BASE+298)
 #define __NR_semget			(__NR_SYSCALL_BASE+299)
 #define __NR_semctl			(__NR_SYSCALL_BASE+300)
@@ -341,16 +336,10 @@
 #define __NR_shmdt			(__NR_SYSCALL_BASE+306)
 #define __NR_shmget			(__NR_SYSCALL_BASE+307)
 #define __NR_shmctl			(__NR_SYSCALL_BASE+308)
-#endif
-
 #define __NR_add_key			(__NR_SYSCALL_BASE+309)
 #define __NR_request_key		(__NR_SYSCALL_BASE+310)
 #define __NR_keyctl			(__NR_SYSCALL_BASE+311)
-
-#if defined(__ARM_EABI__)  /* reserved for un-muxing ipc */
 #define __NR_semtimedop			(__NR_SYSCALL_BASE+312)
-#endif
-
 #define __NR_vserver			(__NR_SYSCALL_BASE+313)
 #define __NR_ioprio_set			(__NR_SYSCALL_BASE+314)
 #define __NR_ioprio_get			(__NR_SYSCALL_BASE+315)
diff --git a/include/asm-generic/local.h b/include/asm-generic/local.h
index de4614840c2c..9291c24f5819 100644
--- a/include/asm-generic/local.h
+++ b/include/asm-generic/local.h
@@ -7,8 +7,15 @@
 #include <asm/atomic.h>
 #include <asm/types.h>
 
-/* An unsigned long type for operations which are atomic for a single
- * CPU.  Usually used in combination with per-cpu variables. */
+/*
+ * A signed long type for operations which are atomic for a single CPU.
+ * Usually used in combination with per-cpu variables.
+ *
+ * This is the default implementation, which uses atomic_long_t.  Which is
+ * rather pointless.  The whole point behind local_t is that some processors
+ * can perform atomic adds and subtracts in a manner which is atomic wrt IRQs
+ * running on this CPU.  local_t allows exploitation of such capabilities.
+ */
 
 /* Implement in terms of atomics. */
 
@@ -20,7 +27,7 @@ typedef struct
 
 #define LOCAL_INIT(i)	{ ATOMIC_LONG_INIT(i) }
 
-#define local_read(l)	((unsigned long)atomic_long_read(&(l)->a))
+#define local_read(l)	atomic_long_read(&(l)->a)
 #define local_set(l,i)	atomic_long_set((&(l)->a),(i))
 #define local_inc(l)	atomic_long_inc(&(l)->a)
 #define local_dec(l)	atomic_long_dec(&(l)->a)
diff --git a/include/asm-generic/mutex-dec.h b/include/asm-generic/mutex-dec.h
index 40c6d1f86598..29c6ac34e236 100644
--- a/include/asm-generic/mutex-dec.h
+++ b/include/asm-generic/mutex-dec.h
@@ -17,13 +17,14 @@
  * it wasn't 1 originally. This function MUST leave the value lower than
  * 1 even when the "1" assertion wasn't true.
  */
-#define __mutex_fastpath_lock(count, fail_fn)				\
-do {									\
-	if (unlikely(atomic_dec_return(count) < 0))			\
-		fail_fn(count);						\
-	else								\
-		smp_mb();						\
-} while (0)
+static inline void
+__mutex_fastpath_lock(atomic_t *count, fastcall void (*fail_fn)(atomic_t *))
+{
+	if (unlikely(atomic_dec_return(count) < 0))
+		fail_fn(count);
+	else
+		smp_mb();
+}
 
 /**
  *  __mutex_fastpath_lock_retval - try to take the lock by moving the count
@@ -36,7 +37,7 @@ do {									\
  * or anything the slow path function returns.
  */
 static inline int
-__mutex_fastpath_lock_retval(atomic_t *count, int (*fail_fn)(atomic_t *))
+__mutex_fastpath_lock_retval(atomic_t *count, fastcall int (*fail_fn)(atomic_t *))
 {
 	if (unlikely(atomic_dec_return(count) < 0))
 		return fail_fn(count);
@@ -59,12 +60,13 @@ __mutex_fastpath_lock_retval(atomic_t *count, int (*fail_fn)(atomic_t *))
  * __mutex_slowpath_needs_to_unlock() macro needs to return 1, it needs
  * to return 0 otherwise.
  */
-#define __mutex_fastpath_unlock(count, fail_fn)				\
-do {									\
-	smp_mb();							\
-	if (unlikely(atomic_inc_return(count) <= 0))			\
-		fail_fn(count);						\
-} while (0)
+static inline void
+__mutex_fastpath_unlock(atomic_t *count, fastcall void (*fail_fn)(atomic_t *))
+{
+	smp_mb();
+	if (unlikely(atomic_inc_return(count) <= 0))
+		fail_fn(count);
+}
 
 #define __mutex_slowpath_needs_to_unlock()		1
 
diff --git a/include/asm-generic/mutex-xchg.h b/include/asm-generic/mutex-xchg.h
index 1d24f47e6c48..32a2100c1aeb 100644
--- a/include/asm-generic/mutex-xchg.h
+++ b/include/asm-generic/mutex-xchg.h
@@ -3,7 +3,7 @@
  *
  * Generic implementation of the mutex fastpath, based on xchg().
  *
- * NOTE: An xchg based implementation is less optimal than an atomic
+ * NOTE: An xchg based implementation might be less optimal than an atomic
  *       decrement/increment based implementation. If your architecture
  *       has a reasonable atomic dec/inc then you should probably use
  *	 asm-generic/mutex-dec.h instead, or you could open-code an
@@ -22,14 +22,14 @@
  * wasn't 1 originally. This function MUST leave the value lower than 1
  * even when the "1" assertion wasn't true.
  */
-#define __mutex_fastpath_lock(count, fail_fn)				\
-do {									\
-	if (unlikely(atomic_xchg(count, 0) != 1))			\
-		fail_fn(count);						\
-	else								\
-		smp_mb();						\
-} while (0)
-
+static inline void
+__mutex_fastpath_lock(atomic_t *count, fastcall void (*fail_fn)(atomic_t *))
+{
+	if (unlikely(atomic_xchg(count, 0) != 1))
+		fail_fn(count);
+	else
+		smp_mb();
+}
 
 /**
  *  __mutex_fastpath_lock_retval - try to take the lock by moving the count
@@ -42,7 +42,7 @@ do {									\
  * or anything the slow path function returns
  */
 static inline int
-__mutex_fastpath_lock_retval(atomic_t *count, int (*fail_fn)(atomic_t *))
+__mutex_fastpath_lock_retval(atomic_t *count, fastcall int (*fail_fn)(atomic_t *))
 {
 	if (unlikely(atomic_xchg(count, 0) != 1))
 		return fail_fn(count);
@@ -64,12 +64,13 @@ __mutex_fastpath_lock_retval(atomic_t *count, int (*fail_fn)(atomic_t *))
  * __mutex_slowpath_needs_to_unlock() macro needs to return 1, it needs
  * to return 0 otherwise.
  */
-#define __mutex_fastpath_unlock(count, fail_fn)				\
-do {									\
-	smp_mb();							\
-	if (unlikely(atomic_xchg(count, 1) != 0))			\
-		fail_fn(count);						\
-} while (0)
+static inline void
+__mutex_fastpath_unlock(atomic_t *count, fastcall void (*fail_fn)(atomic_t *))
+{
+	smp_mb();
+	if (unlikely(atomic_xchg(count, 1) != 0))
+		fail_fn(count);
+}
 
 #define __mutex_slowpath_needs_to_unlock()		0
 
diff --git a/include/asm-i386/apicdef.h b/include/asm-i386/apicdef.h
index 03185cef8e0a..5e4a35af2921 100644
--- a/include/asm-i386/apicdef.h
+++ b/include/asm-i386/apicdef.h
@@ -37,6 +37,7 @@
 #define			APIC_SPIV_FOCUS_DISABLED	(1<<9)
 #define			APIC_SPIV_APIC_ENABLED		(1<<8)
 #define		APIC_ISR	0x100
+#define         APIC_ISR_NR     0x8     /* Number of 32 bit ISR registers. */
 #define		APIC_TMR	0x180
 #define 	APIC_IRR	0x200
 #define 	APIC_ESR	0x280
diff --git a/include/asm-i386/floppy.h b/include/asm-i386/floppy.h
index 79727afb94c9..03403045c182 100644
--- a/include/asm-i386/floppy.h
+++ b/include/asm-i386/floppy.h
@@ -56,7 +56,6 @@ static irqreturn_t floppy_hardint(int irq, void *dev_id, struct pt_regs * regs)
 	register unsigned char st;
 
 #undef TRACE_FLPY_INT
-#define NO_FLOPPY_ASSEMBLER
 
 #ifdef TRACE_FLPY_INT
 	static int calls=0;
@@ -71,38 +70,6 @@ static irqreturn_t floppy_hardint(int irq, void *dev_id, struct pt_regs * regs)
 		bytes = virtual_dma_count;
 #endif
 
-#ifndef NO_FLOPPY_ASSEMBLER
-	__asm__ (
-       "testl %1,%1"
-	"je 3f"
-"1:	inb %w4,%b0"
-	"andb $160,%b0"
-	"cmpb $160,%b0"
-	"jne 2f"
-	"incw %w4"
-	"testl %3,%3"
-	"jne 4f"
-	"inb %w4,%b0"
-	"movb %0,(%2)"
-	"jmp 5f"
-"4:    	movb (%2),%0"
-	"outb %b0,%w4"
-"5:	decw %w4"
-	"outb %0,$0x80"
-	"decl %1"
-	"incl %2"
-	"testl %1,%1"
-	"jne 1b"
-"3:	inb %w4,%b0"
-"2:	"
-       : "=a" ((char) st), 
-       "=c" ((long) virtual_dma_count), 
-       "=S" ((long) virtual_dma_addr)
-       : "b" ((long) virtual_dma_mode),
-       "d" ((short) virtual_dma_port+4), 
-       "1" ((long) virtual_dma_count),
-       "2" ((long) virtual_dma_addr));
-#else	
 	{
 		register int lcount;
 		register char *lptr;
@@ -122,7 +89,6 @@ static irqreturn_t floppy_hardint(int irq, void *dev_id, struct pt_regs * regs)
 		virtual_dma_addr = lptr;
 		st = inb(virtual_dma_port+4);
 	}
-#endif
 
 #ifdef TRACE_FLPY_INT
 	calls++;
diff --git a/include/asm-i386/local.h b/include/asm-i386/local.h
index 0177da80dde3..e67fa08260fe 100644
--- a/include/asm-i386/local.h
+++ b/include/asm-i386/local.h
@@ -5,7 +5,7 @@
 
 typedef struct
 {
-	volatile unsigned long counter;
+	volatile long counter;
 } local_t;
 
 #define LOCAL_INIT(i)	{ (i) }
@@ -29,7 +29,7 @@ static __inline__ void local_dec(local_t *v)
 		:"m" (v->counter));
 }
 
-static __inline__ void local_add(unsigned long i, local_t *v)
+static __inline__ void local_add(long i, local_t *v)
 {
 	__asm__ __volatile__(
 		"addl %1,%0"
@@ -37,7 +37,7 @@ static __inline__ void local_add(unsigned long i, local_t *v)
 		:"ir" (i), "m" (v->counter));
 }
 
-static __inline__ void local_sub(unsigned long i, local_t *v)
+static __inline__ void local_sub(long i, local_t *v)
 {
 	__asm__ __volatile__(
 		"subl %1,%0"
diff --git a/include/asm-i386/unistd.h b/include/asm-i386/unistd.h
index 014e3562895b..2e7f3e257fdd 100644
--- a/include/asm-i386/unistd.h
+++ b/include/asm-i386/unistd.h
@@ -318,8 +318,10 @@
 #define __NR_unshare		310
 #define __NR_set_robust_list	311
 #define __NR_get_robust_list	312
+#define __NR_sys_splice		313
+#define __NR_sys_sync_file_range 314
 
-#define NR_syscalls 313
+#define NR_syscalls 315
 
 /*
  * user-visible error numbers are in the range -1 - -128: see
diff --git a/include/asm-ia64/asmmacro.h b/include/asm-ia64/asmmacro.h
index d4cec32083d8..edf2cebb2969 100644
--- a/include/asm-ia64/asmmacro.h
+++ b/include/asm-ia64/asmmacro.h
@@ -38,6 +38,10 @@ name:
 
 /*
  * Helper macros for accessing user memory.
+ *
+ * When adding any new .section/.previous entries here, make sure to
+ * also add it to the DISCARD section in arch/ia64/kernel/gate.lds.S or
+ * unpleasant things will happen.
  */
 
 	.section "__ex_table", "a"		// declare section & section attributes
diff --git a/include/asm-ia64/pal.h b/include/asm-ia64/pal.h
index 4e7e6f23b08c..37e52a2836b0 100644
--- a/include/asm-ia64/pal.h
+++ b/include/asm-ia64/pal.h
@@ -68,6 +68,7 @@
 #define PAL_SHUTDOWN		40	/* enter processor shutdown state */
 #define PAL_PREFETCH_VISIBILITY	41	/* Make Processor Prefetches Visible */
 #define PAL_LOGICAL_TO_PHYSICAL 42	/* returns information on logical to physical processor mapping */
+#define PAL_CACHE_SHARED_INFO	43	/* returns information on caches shared by logical processor */
 
 #define PAL_COPY_PAL		256	/* relocate PAL procedures and PAL PMI */
 #define PAL_HALT_INFO		257	/* return the low power capabilities of processor */
@@ -130,7 +131,7 @@ typedef u64				pal_cache_line_state_t;
 #define PAL_CACHE_LINE_STATE_MODIFIED	3	/* Modified */
 
 typedef struct pal_freq_ratio {
-	u64 den : 32, num : 32;	/* numerator & denominator */
+	u32 den, num;		/* numerator & denominator */
 } itc_ratio, proc_ratio;
 
 typedef	union  pal_cache_config_info_1_s {
@@ -151,10 +152,10 @@ typedef	union  pal_cache_config_info_1_s {
 
 typedef	union  pal_cache_config_info_2_s {
 	struct {
-		u64		cache_size	: 32,	/*cache size in bytes*/
+		u32		cache_size;		/*cache size in bytes*/
 
 
-				alias_boundary	: 8,	/* 39-32 aliased addr
+		u32		alias_boundary	: 8,	/* 39-32 aliased addr
 							 * separation for max
 							 * performance.
 							 */
@@ -1647,6 +1648,33 @@ ia64_pal_logical_to_phys(u64 proc_number, pal_logical_to_physical_t *mapping)
 
 	return iprv.status;
 }
+
+typedef struct pal_cache_shared_info_s
+{
+	u64 num_shared;
+	pal_proc_n_log_info1_t ppli1;
+	pal_proc_n_log_info2_t ppli2;
+} pal_cache_shared_info_t;
+
+/* Get information on logical to physical processor mappings. */
+static inline s64
+ia64_pal_cache_shared_info(u64 level,
+		u64 type,
+		u64 proc_number,
+		pal_cache_shared_info_t *info)
+{
+	struct ia64_pal_retval iprv;
+
+	PAL_CALL(iprv, PAL_CACHE_SHARED_INFO, level, type, proc_number);
+
+	if (iprv.status == PAL_STATUS_SUCCESS) {
+		info->num_shared = iprv.v0;
+		info->ppli1.ppli1_data = iprv.v1;
+		info->ppli2.ppli2_data = iprv.v2;
+	}
+
+	return iprv.status;
+}
 #endif /* __ASSEMBLY__ */
 
 #endif /* _ASM_IA64_PAL_H */
diff --git a/include/asm-ia64/unistd.h b/include/asm-ia64/unistd.h
index 019956c613e4..36070c1014d8 100644
--- a/include/asm-ia64/unistd.h
+++ b/include/asm-ia64/unistd.h
@@ -285,12 +285,13 @@
 #define __NR_faccessat			1293
 /* 1294, 1295 reserved for pselect/ppoll */
 #define __NR_unshare			1296
+#define __NR_splice			1297
 
 #ifdef __KERNEL__
 
 #include <linux/config.h>
 
-#define NR_syscalls			273 /* length of syscall table */
+#define NR_syscalls			274 /* length of syscall table */
 
 #define __ARCH_WANT_SYS_RT_SIGACTION
 
diff --git a/include/asm-parisc/atomic.h b/include/asm-parisc/atomic.h
index 4dc7253ff5d0..403ea97316cf 100644
--- a/include/asm-parisc/atomic.h
+++ b/include/asm-parisc/atomic.h
@@ -210,6 +210,8 @@ static __inline__ int atomic_read(const atomic_t *v)
 
 #define atomic_dec_and_test(v)	(atomic_dec_return(v) == 0)
 
+#define atomic_sub_and_test(i,v)	(atomic_sub_return((i),(v)) == 0)
+
 #define ATOMIC_INIT(i)	((atomic_t) { (i) })
 
 #define smp_mb__before_atomic_dec()	smp_mb()
@@ -267,6 +269,7 @@ atomic64_read(const atomic64_t *v)
 
 #define atomic64_inc_and_test(v) 	(atomic64_inc_return(v) == 0)
 #define atomic64_dec_and_test(v)	(atomic64_dec_return(v) == 0)
+#define atomic64_sub_and_test(i,v)	(atomic64_sub_return((i),(v)) == 0)
 
 #endif /* __LP64__ */
 
diff --git a/include/asm-parisc/cache.h b/include/asm-parisc/cache.h
index ae50f8e12eed..c831665473cb 100644
--- a/include/asm-parisc/cache.h
+++ b/include/asm-parisc/cache.h
@@ -48,7 +48,7 @@ extern void flush_user_icache_range_asm(unsigned long, unsigned long);
 extern void flush_kernel_icache_range_asm(unsigned long, unsigned long);
 extern void flush_user_dcache_range_asm(unsigned long, unsigned long);
 extern void flush_kernel_dcach