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-rw-r--r--include/asm-parisc/assembly.h2
-rw-r--r--include/asm-parisc/atomic.h12
-rw-r--r--include/asm-parisc/bitops.h2
-rw-r--r--include/asm-parisc/cacheflush.h1
-rw-r--r--include/asm-parisc/pci.h13
-rw-r--r--include/asm-parisc/processor.h1
-rw-r--r--include/asm-parisc/spinlock.h163
-rw-r--r--include/asm-parisc/spinlock_types.h21
-rw-r--r--include/asm-parisc/system.h24
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)
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-22 22:28:42 +0000