Merge /spare/repo/linux-2.6/

9 files changed, 73 insertions, 166 deletions

diff --git a/include/asm-parisc/assembly.h b/include/asm-parisc/assembly.h
index cbc286f49b36..30b023411fef 100644
--- a/include/asm-parisc/assembly.h
+++ b/include/asm-parisc/assembly.h
@@ -63,7 +63,7 @@
 	.level 2.0w
 #endif
 
-#include <asm/offsets.h>
+#include <asm/asm-offsets.h>
 #include <asm/page.h>
 
 #include <asm/asmregs.h>
diff --git a/include/asm-parisc/atomic.h b/include/asm-parisc/atomic.h
index e24f7579adb0..048a2c7fd0c0 100644
--- a/include/asm-parisc/atomic.h
+++ b/include/asm-parisc/atomic.h
@@ -24,19 +24,19 @@
 #  define ATOMIC_HASH_SIZE 4
 #  define ATOMIC_HASH(a) (&(__atomic_hash[ (((unsigned long) a)/L1_CACHE_BYTES) & (ATOMIC_HASH_SIZE-1) ]))
 
-extern spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned;
+extern raw_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned;
 
-/* Can't use _raw_spin_lock_irq because of #include problems, so
+/* Can't use raw_spin_lock_irq because of #include problems, so
  * this is the substitute */
 #define _atomic_spin_lock_irqsave(l,f) do {	\
-	spinlock_t *s = ATOMIC_HASH(l);		\
+	raw_spinlock_t *s = ATOMIC_HASH(l);		\
 	local_irq_save(f);			\
-	_raw_spin_lock(s);			\
+	__raw_spin_lock(s);			\
 } while(0)
 
 #define _atomic_spin_unlock_irqrestore(l,f) do {	\
-	spinlock_t *s = ATOMIC_HASH(l);			\
-	_raw_spin_unlock(s);				\
+	raw_spinlock_t *s = ATOMIC_HASH(l);			\
+	__raw_spin_unlock(s);				\
 	local_irq_restore(f);				\
 } while(0)
 
diff --git a/include/asm-parisc/bitops.h b/include/asm-parisc/bitops.h
index 928e5ef850bd..af7db694b22d 100644
--- a/include/asm-parisc/bitops.h
+++ b/include/asm-parisc/bitops.h
@@ -2,7 +2,7 @@
 #define _PARISC_BITOPS_H
 
 #include <linux/compiler.h>
-#include <asm/system.h>
+#include <asm/spinlock.h>
 #include <asm/byteorder.h>
 #include <asm/atomic.h>
 
diff --git a/include/asm-parisc/cacheflush.h b/include/asm-parisc/cacheflush.h
index 06732719d927..aa592d8c0e39 100644
--- a/include/asm-parisc/cacheflush.h
+++ b/include/asm-parisc/cacheflush.h
@@ -3,6 +3,7 @@
 
 #include <linux/config.h>
 #include <linux/mm.h>
+#include <asm/cache.h>	/* for flush_user_dcache_range_asm() proto */
 
 /* The usual comment is "Caches aren't brain-dead on the <architecture>".
  * Unfortunately, that doesn't apply to PA-RISC. */
diff --git a/include/asm-parisc/pci.h b/include/asm-parisc/pci.h
index 98d79a3d54fa..d0b761f690b5 100644
--- a/include/asm-parisc/pci.h
+++ b/include/asm-parisc/pci.h
@@ -257,6 +257,19 @@ extern void
 pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
 			struct pci_bus_region *region);
 
+static inline struct resource *
+pcibios_select_root(struct pci_dev *pdev, struct resource *res)
+{
+	struct resource *root = NULL;
+
+	if (res->flags & IORESOURCE_IO)
+		root = &ioport_resource;
+	if (res->flags & IORESOURCE_MEM)
+		root = &iomem_resource;
+
+	return root;
+}
+
 static inline void pcibios_add_platform_entries(struct pci_dev *dev)
 {
 }
diff --git a/include/asm-parisc/processor.h b/include/asm-parisc/processor.h
index 0b61f51d8467..a9dfadd05658 100644
--- a/include/asm-parisc/processor.h
+++ b/include/asm-parisc/processor.h
@@ -11,6 +11,7 @@
 #ifndef __ASSEMBLY__
 #include <linux/config.h>
 #include <linux/threads.h>
+#include <linux/spinlock_types.h>
 
 #include <asm/hardware.h>
 #include <asm/page.h>
diff --git a/include/asm-parisc/spinlock.h b/include/asm-parisc/spinlock.h
index 679ea1c651ef..43eaa6e742e0 100644
--- a/include/asm-parisc/spinlock.h
+++ b/include/asm-parisc/spinlock.h
@@ -2,30 +2,25 @@
 #define __ASM_SPINLOCK_H
 
 #include <asm/system.h>
+#include <asm/processor.h>
+#include <asm/spinlock_types.h>
 
 /* Note that PA-RISC has to use `1' to mean unlocked and `0' to mean locked
  * since it only has load-and-zero. Moreover, at least on some PA processors,
  * the semaphore address has to be 16-byte aligned.
  */
 
-#ifndef CONFIG_DEBUG_SPINLOCK
-
-#define __SPIN_LOCK_UNLOCKED	{ { 1, 1, 1, 1 } }
-#undef SPIN_LOCK_UNLOCKED
-#define SPIN_LOCK_UNLOCKED (spinlock_t) __SPIN_LOCK_UNLOCKED
-
-#define spin_lock_init(x)	do { *(x) = SPIN_LOCK_UNLOCKED; } while(0)
-
-static inline int spin_is_locked(spinlock_t *x)
+static inline int __raw_spin_is_locked(raw_spinlock_t *x)
 {
 	volatile unsigned int *a = __ldcw_align(x);
 	return *a == 0;
 }
 
-#define spin_unlock_wait(x)	do { barrier(); } while(spin_is_locked(x))
-#define _raw_spin_lock_flags(lock, flags) _raw_spin_lock(lock)
+#define __raw_spin_lock_flags(lock, flags) __raw_spin_lock(lock)
+#define __raw_spin_unlock_wait(x) \
+		do { cpu_relax(); } while (__raw_spin_is_locked(x))
 
-static inline void _raw_spin_lock(spinlock_t *x)
+static inline void __raw_spin_lock(raw_spinlock_t *x)
 {
 	volatile unsigned int *a;
 
@@ -36,7 +31,7 @@ static inline void _raw_spin_lock(spinlock_t *x)
 	mb();
 }
 
-static inline void _raw_spin_unlock(spinlock_t *x)
+static inline void __raw_spin_unlock(raw_spinlock_t *x)
 {
 	volatile unsigned int *a;
 	mb();
@@ -45,7 +40,7 @@ static inline void _raw_spin_unlock(spinlock_t *x)
 	mb();
 }
 
-static inline int _raw_spin_trylock(spinlock_t *x)
+static inline int __raw_spin_trylock(raw_spinlock_t *x)
 {
 	volatile unsigned int *a;
 	int ret;
@@ -57,131 +52,38 @@ static inline int _raw_spin_trylock(spinlock_t *x)
 
 	return ret;
 }
-	
-#define spin_lock_own(LOCK, LOCATION)	((void)0)
-
-#else /* !(CONFIG_DEBUG_SPINLOCK) */
-
-#define SPINLOCK_MAGIC	0x1D244B3C
-
-#define __SPIN_LOCK_UNLOCKED	{ { 1, 1, 1, 1 }, SPINLOCK_MAGIC, 10, __FILE__ , NULL, 0, -1, NULL, NULL }
-#undef SPIN_LOCK_UNLOCKED
-#define SPIN_LOCK_UNLOCKED (spinlock_t) __SPIN_LOCK_UNLOCKED
-
-#define spin_lock_init(x)	do { *(x) = SPIN_LOCK_UNLOCKED; } while(0)
-
-#define CHECK_LOCK(x)							\
-	do {								\
-	 	if (unlikely((x)->magic != SPINLOCK_MAGIC)) {			\
-			printk(KERN_ERR "%s:%d: spin_is_locked"		\
-			" on uninitialized spinlock %p.\n",		\
-				__FILE__, __LINE__, (x)); 		\
-		} 							\
-	} while(0)
-
-#define spin_is_locked(x)						\
-	({								\
-	 	CHECK_LOCK(x);						\
-		volatile unsigned int *a = __ldcw_align(x);		\
-		if (unlikely((*a == 0) && (x)->babble)) {				\
-			(x)->babble--;					\
-			printk("KERN_WARNING				\
-				%s:%d: spin_is_locked(%s/%p) already"	\
-				" locked by %s:%d in %s at %p(%d)\n",	\
-				__FILE__,__LINE__, (x)->module,	(x),	\
-				(x)->bfile, (x)->bline, (x)->task->comm,\
-				(x)->previous, (x)->oncpu);		\
-		}							\
-		*a == 0;						\
-	})
-
-#define spin_unlock_wait(x)						\
-	do {								\
-	 	CHECK_LOCK(x);						\
-		volatile unsigned int *a = __ldcw_align(x);		\
-		if (unlikely((*a == 0) && (x)->babble)) {				\
-			(x)->babble--;					\
-			printk("KERN_WARNING				\
-				%s:%d: spin_unlock_wait(%s/%p)"		\
-				" owned by %s:%d in %s at %p(%d)\n",	\
-				__FILE__,__LINE__, (x)->module, (x),	\
-				(x)->bfile, (x)->bline, (x)->task->comm,\
-				(x)->previous, (x)->oncpu);		\
-		}							\
-		barrier();						\
-	} while (*((volatile unsigned char *)(__ldcw_align(x))) == 0)
-
-extern void _dbg_spin_lock(spinlock_t *lock, const char *base_file, int line_no);
-extern void _dbg_spin_unlock(spinlock_t *lock, const char *, int);
-extern int _dbg_spin_trylock(spinlock_t * lock, const char *, int);
-
-#define _raw_spin_lock_flags(lock, flags) _raw_spin_lock(lock)
-
-#define _raw_spin_unlock(lock)	_dbg_spin_unlock(lock, __FILE__, __LINE__)
-#define _raw_spin_lock(lock) _dbg_spin_lock(lock, __FILE__, __LINE__)
-#define _raw_spin_trylock(lock) _dbg_spin_trylock(lock, __FILE__, __LINE__)
-
-/* just in case we need it */
-#define spin_lock_own(LOCK, LOCATION)					\
-do {									\
-	volatile unsigned int *a = __ldcw_align(LOCK);			\
-	if (!((*a == 0) && ((LOCK)->oncpu == smp_processor_id())))	\
-		printk("KERN_WARNING					\
-			%s: called on %d from %p but lock %s on %d\n",	\
-			LOCATION, smp_processor_id(),			\
-			__builtin_return_address(0),			\
-			(*a == 0) ? "taken" : "freed", (LOCK)->on_cpu);	\
-} while (0)
-
-#endif /* !(CONFIG_DEBUG_SPINLOCK) */
 
 /*
  * Read-write spinlocks, allowing multiple readers
  * but only one writer.
  */
-typedef struct {
-	spinlock_t lock;
-	volatile int counter;
-#ifdef CONFIG_PREEMPT
-	unsigned int break_lock;
-#endif
-} rwlock_t;
-
-#define RW_LOCK_UNLOCKED (rwlock_t) { __SPIN_LOCK_UNLOCKED, 0 }
-
-#define rwlock_init(lp)	do { *(lp) = RW_LOCK_UNLOCKED; } while (0)
 
-#define _raw_read_trylock(lock) generic_raw_read_trylock(lock)
+#define __raw_read_trylock(lock) generic__raw_read_trylock(lock)
 
 /* read_lock, read_unlock are pretty straightforward.  Of course it somehow
  * sucks we end up saving/restoring flags twice for read_lock_irqsave aso. */
 
-#ifdef CONFIG_DEBUG_RWLOCK
-extern void _dbg_read_lock(rwlock_t * rw, const char *bfile, int bline);
-#define _raw_read_lock(rw) _dbg_read_lock(rw, __FILE__, __LINE__)
-#else
-static  __inline__ void _raw_read_lock(rwlock_t *rw)
+static  __inline__ void __raw_read_lock(raw_rwlock_t *rw)
 {
 	unsigned long flags;
 	local_irq_save(flags);
-	_raw_spin_lock(&rw->lock); 
+	__raw_spin_lock(&rw->lock);
 
 	rw->counter++;
 
-	_raw_spin_unlock(&rw->lock);
+	__raw_spin_unlock(&rw->lock);
 	local_irq_restore(flags);
 }
-#endif	/* CONFIG_DEBUG_RWLOCK */
 
-static  __inline__ void _raw_read_unlock(rwlock_t *rw)
+static  __inline__ void __raw_read_unlock(raw_rwlock_t *rw)
 {
 	unsigned long flags;
 	local_irq_save(flags);
-	_raw_spin_lock(&rw->lock); 
+	__raw_spin_lock(&rw->lock);
 
 	rw->counter--;
 
-	_raw_spin_unlock(&rw->lock);
+	__raw_spin_unlock(&rw->lock);
 	local_irq_restore(flags);
 }
 
@@ -194,20 +96,17 @@ static  __inline__ void _raw_read_unlock(rwlock_t *rw)
  * writers) in interrupt handlers someone fucked up and we'd dead-lock
  * sooner or later anyway.   prumpf */
 
-#ifdef CONFIG_DEBUG_RWLOCK
-extern void _dbg_write_lock(rwlock_t * rw, const char *bfile, int bline);
-#define _raw_write_lock(rw) _dbg_write_lock(rw, __FILE__, __LINE__)
-#else
-static  __inline__ void _raw_write_lock(rwlock_t *rw)
+static  __inline__ void __raw_write_lock(raw_rwlock_t *rw)
 {
 retry:
-	_raw_spin_lock(&rw->lock);
+	__raw_spin_lock(&rw->lock);
 
 	if(rw->counter != 0) {
 		/* this basically never happens */
-		_raw_spin_unlock(&rw->lock);
+		__raw_spin_unlock(&rw->lock);
 
-		while(rw->counter != 0);
+		while (rw->counter != 0)
+			cpu_relax();
 
 		goto retry;
 	}
@@ -215,26 +114,21 @@ retry:
 	/* got it.  now leave without unlocking */
 	rw->counter = -1; /* remember we are locked */
 }
-#endif /* CONFIG_DEBUG_RWLOCK */
 
 /* write_unlock is absolutely trivial - we don't have to wait for anything */
 
-static  __inline__ void _raw_write_unlock(rwlock_t *rw)
+static  __inline__ void __raw_write_unlock(raw_rwlock_t *rw)
 {
 	rw->counter = 0;
-	_raw_spin_unlock(&rw->lock);
+	__raw_spin_unlock(&rw->lock);
 }
 
-#ifdef CONFIG_DEBUG_RWLOCK
-extern int _dbg_write_trylock(rwlock_t * rw, const char *bfile, int bline);
-#define _raw_write_trylock(rw) _dbg_write_trylock(rw, __FILE__, __LINE__)
-#else
-static  __inline__ int _raw_write_trylock(rwlock_t *rw)
+static  __inline__ int __raw_write_trylock(raw_rwlock_t *rw)
 {
-	_raw_spin_lock(&rw->lock);
+	__raw_spin_lock(&rw->lock);
 	if (rw->counter != 0) {
 		/* this basically never happens */
-		_raw_spin_unlock(&rw->lock);
+		__raw_spin_unlock(&rw->lock);
 
 		return 0;
 	}
@@ -243,14 +137,13 @@ static  __inline__ int _raw_write_trylock(rwlock_t *rw)
 	rw->counter = -1; /* remember we are locked */
 	return 1;
 }
-#endif /* CONFIG_DEBUG_RWLOCK */
 
-static __inline__ int is_read_locked(rwlock_t *rw)
+static __inline__ int __raw_is_read_locked(raw_rwlock_t *rw)
 {
 	return rw->counter > 0;
 }
 
-static __inline__ int is_write_locked(rwlock_t *rw)
+static __inline__ int __raw_is_write_locked(raw_rwlock_t *rw)
 {
 	return rw->counter < 0;
 }
diff --git a/include/asm-parisc/spinlock_types.h b/include/asm-parisc/spinlock_types.h
new file mode 100644
index 000000000000..785bba822fbf
--- /dev/null
+++ b/include/asm-parisc/spinlock_types.h
@@ -0,0 +1,21 @@
+#ifndef __ASM_SPINLOCK_TYPES_H
+#define __ASM_SPINLOCK_TYPES_H
+
+#ifndef __LINUX_SPINLOCK_TYPES_H
+# error "please don't include this file directly"
+#endif
+
+typedef struct {
+	volatile unsigned int lock[4];
+} raw_spinlock_t;
+
+#define __RAW_SPIN_LOCK_UNLOCKED	{ { 1, 1, 1, 1 } }
+
+typedef struct {
+	raw_spinlock_t lock;
+	volatile int counter;
+} raw_rwlock_t;
+
+#define __RAW_RW_LOCK_UNLOCKED		{ __RAW_SPIN_LOCK_UNLOCKED, 0 }
+
+#endif
diff --git a/include/asm-parisc/system.h b/include/asm-parisc/system.h
index 81c543339036..26ff844a21c1 100644
--- a/include/asm-parisc/system.h
+++ b/include/asm-parisc/system.h
@@ -160,29 +160,7 @@ static inline void set_eiem(unsigned long val)
 })
 
 #ifdef CONFIG_SMP
-/*
- * Your basic SMP spinlocks, allowing only a single CPU anywhere
- */
-
-typedef struct {
-	volatile unsigned int lock[4];
-#ifdef CONFIG_DEBUG_SPINLOCK
-	unsigned long magic;
-	volatile unsigned int babble;
-	const char *module;
-	char *bfile;
-	int bline;
-	int oncpu;
-	void *previous;
-	struct task_struct * task;
-#endif
-#ifdef CONFIG_PREEMPT
-	unsigned int break_lock;
-#endif
-} spinlock_t;
-
-#define __lock_aligned __attribute__((__section__(".data.lock_aligned")))
-
+# define __lock_aligned __attribute__((__section__(".data.lock_aligned")))
 #endif
 
 #define KERNEL_START (0x10100000 - 0x1000)