aboutsummaryrefslogtreecommitdiffstats
path: root/arch/alpha
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2009-12-15 12:02:01 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-15 12:02:01 -0500
commit8f0ddf91f2aeb09602373e400cf8b403e9017210 (patch)
treeb907c35c79caadafff6ad46a91614e30afd2f967 /arch/alpha
parent050cbb09dac0402672edeaeac06094ef8ff1749a (diff)
parentb5f91da0a6973bb6f9ff3b91b0e92c0773a458f3 (diff)
Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (26 commits) clockevents: Convert to raw_spinlock clockevents: Make tick_device_lock static debugobjects: Convert to raw_spinlocks perf_event: Convert to raw_spinlock hrtimers: Convert to raw_spinlocks genirq: Convert irq_desc.lock to raw_spinlock smp: Convert smplocks to raw_spinlocks rtmutes: Convert rtmutex.lock to raw_spinlock sched: Convert pi_lock to raw_spinlock sched: Convert cpupri lock to raw_spinlock sched: Convert rt_runtime_lock to raw_spinlock sched: Convert rq->lock to raw_spinlock plist: Make plist debugging raw_spinlock aware bkl: Fixup core_lock fallout locking: Cleanup the name space completely locking: Further name space cleanups alpha: Fix fallout from locking changes locking: Implement new raw_spinlock locking: Convert raw_rwlock functions to arch_rwlock locking: Convert raw_rwlock to arch_rwlock ...
Diffstat (limited to 'arch/alpha')
-rw-r--r--arch/alpha/include/asm/core_t2.h34
-rw-r--r--arch/alpha/include/asm/spinlock.h38
-rw-r--r--arch/alpha/include/asm/spinlock_types.h8
-rw-r--r--arch/alpha/kernel/core_t2.c2
-rw-r--r--arch/alpha/kernel/irq.c4
5 files changed, 43 insertions, 43 deletions
diff --git a/arch/alpha/include/asm/core_t2.h b/arch/alpha/include/asm/core_t2.h
index 46bfff58f670..471c07292e0b 100644
--- a/arch/alpha/include/asm/core_t2.h
+++ b/arch/alpha/include/asm/core_t2.h
@@ -435,7 +435,7 @@ extern inline void t2_outl(u32 b, unsigned long addr)
435 set_hae(msb); \ 435 set_hae(msb); \
436} 436}
437 437
438extern spinlock_t t2_hae_lock; 438extern raw_spinlock_t t2_hae_lock;
439 439
440/* 440/*
441 * NOTE: take T2_DENSE_MEM off in each readX/writeX routine, since 441 * NOTE: take T2_DENSE_MEM off in each readX/writeX routine, since
@@ -448,12 +448,12 @@ __EXTERN_INLINE u8 t2_readb(const volatile void __iomem *xaddr)
448 unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM; 448 unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
449 unsigned long result, msb; 449 unsigned long result, msb;
450 unsigned long flags; 450 unsigned long flags;
451 spin_lock_irqsave(&t2_hae_lock, flags); 451 raw_spin_lock_irqsave(&t2_hae_lock, flags);
452 452
453 t2_set_hae; 453 t2_set_hae;
454 454
455 result = *(vip) ((addr << 5) + T2_SPARSE_MEM + 0x00); 455 result = *(vip) ((addr << 5) + T2_SPARSE_MEM + 0x00);
456 spin_unlock_irqrestore(&t2_hae_lock, flags); 456 raw_spin_unlock_irqrestore(&t2_hae_lock, flags);
457 return __kernel_extbl(result, addr & 3); 457 return __kernel_extbl(result, addr & 3);
458} 458}
459 459
@@ -462,12 +462,12 @@ __EXTERN_INLINE u16 t2_readw(const volatile void __iomem *xaddr)
462 unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM; 462 unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
463 unsigned long result, msb; 463 unsigned long result, msb;
464 unsigned long flags; 464 unsigned long flags;
465 spin_lock_irqsave(&t2_hae_lock, flags); 465 raw_spin_lock_irqsave(&t2_hae_lock, flags);
466 466
467 t2_set_hae; 467 t2_set_hae;
468 468
469 result = *(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x08); 469 result = *(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x08);
470 spin_unlock_irqrestore(&t2_hae_lock, flags); 470 raw_spin_unlock_irqrestore(&t2_hae_lock, flags);
471 return __kernel_extwl(result, addr & 3); 471 return __kernel_extwl(result, addr & 3);
472} 472}
473 473
@@ -480,12 +480,12 @@ __EXTERN_INLINE u32 t2_readl(const volatile void __iomem *xaddr)
480 unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM; 480 unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
481 unsigned long result, msb; 481 unsigned long result, msb;
482 unsigned long flags; 482 unsigned long flags;
483 spin_lock_irqsave(&t2_hae_lock, flags); 483 raw_spin_lock_irqsave(&t2_hae_lock, flags);
484 484
485 t2_set_hae; 485 t2_set_hae;
486 486
487 result = *(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x18); 487 result = *(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x18);
488 spin_unlock_irqrestore(&t2_hae_lock, flags); 488 raw_spin_unlock_irqrestore(&t2_hae_lock, flags);
489 return result & 0xffffffffUL; 489 return result & 0xffffffffUL;
490} 490}
491 491
@@ -494,14 +494,14 @@ __EXTERN_INLINE u64 t2_readq(const volatile void __iomem *xaddr)
494 unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM; 494 unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
495 unsigned long r0, r1, work, msb; 495 unsigned long r0, r1, work, msb;
496 unsigned long flags; 496 unsigned long flags;
497 spin_lock_irqsave(&t2_hae_lock, flags); 497 raw_spin_lock_irqsave(&t2_hae_lock, flags);
498 498
499 t2_set_hae; 499 t2_set_hae;
500 500
501 work = (addr << 5) + T2_SPARSE_MEM + 0x18; 501 work = (addr << 5) + T2_SPARSE_MEM + 0x18;
502 r0 = *(vuip)(work); 502 r0 = *(vuip)(work);
503 r1 = *(vuip)(work + (4 << 5)); 503 r1 = *(vuip)(work + (4 << 5));
504 spin_unlock_irqrestore(&t2_hae_lock, flags); 504 raw_spin_unlock_irqrestore(&t2_hae_lock, flags);
505 return r1 << 32 | r0; 505 return r1 << 32 | r0;
506} 506}
507 507
@@ -510,13 +510,13 @@ __EXTERN_INLINE void t2_writeb(u8 b, volatile void __iomem *xaddr)
510 unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM; 510 unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
511 unsigned long msb, w; 511 unsigned long msb, w;
512 unsigned long flags; 512 unsigned long flags;
513 spin_lock_irqsave(&t2_hae_lock, flags); 513 raw_spin_lock_irqsave(&t2_hae_lock, flags);
514 514
515 t2_set_hae; 515 t2_set_hae;
516 516
517 w = __kernel_insbl(b, addr & 3); 517 w = __kernel_insbl(b, addr & 3);
518 *(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x00) = w; 518 *(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x00) = w;
519 spin_unlock_irqrestore(&t2_hae_lock, flags); 519 raw_spin_unlock_irqrestore(&t2_hae_lock, flags);
520} 520}
521 521
522__EXTERN_INLINE void t2_writew(u16 b, volatile void __iomem *xaddr) 522__EXTERN_INLINE void t2_writew(u16 b, volatile void __iomem *xaddr)
@@ -524,13 +524,13 @@ __EXTERN_INLINE void t2_writew(u16 b, volatile void __iomem *xaddr)
524 unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM; 524 unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
525 unsigned long msb, w; 525 unsigned long msb, w;
526 unsigned long flags; 526 unsigned long flags;
527 spin_lock_irqsave(&t2_hae_lock, flags); 527 raw_spin_lock_irqsave(&t2_hae_lock, flags);
528 528
529 t2_set_hae; 529 t2_set_hae;
530 530
531 w = __kernel_inswl(b, addr & 3); 531 w = __kernel_inswl(b, addr & 3);
532 *(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x08) = w; 532 *(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x08) = w;
533 spin_unlock_irqrestore(&t2_hae_lock, flags); 533 raw_spin_unlock_irqrestore(&t2_hae_lock, flags);
534} 534}
535 535
536/* 536/*
@@ -542,12 +542,12 @@ __EXTERN_INLINE void t2_writel(u32 b, volatile void __iomem *xaddr)
542 unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM; 542 unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
543 unsigned long msb; 543 unsigned long msb;
544 unsigned long flags; 544 unsigned long flags;
545 spin_lock_irqsave(&t2_hae_lock, flags); 545 raw_spin_lock_irqsave(&t2_hae_lock, flags);
546 546
547 t2_set_hae; 547 t2_set_hae;
548 548
549 *(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x18) = b; 549 *(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x18) = b;
550 spin_unlock_irqrestore(&t2_hae_lock, flags); 550 raw_spin_unlock_irqrestore(&t2_hae_lock, flags);
551} 551}
552 552
553__EXTERN_INLINE void t2_writeq(u64 b, volatile void __iomem *xaddr) 553__EXTERN_INLINE void t2_writeq(u64 b, volatile void __iomem *xaddr)
@@ -555,14 +555,14 @@ __EXTERN_INLINE void t2_writeq(u64 b, volatile void __iomem *xaddr)
555 unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM; 555 unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
556 unsigned long msb, work; 556 unsigned long msb, work;
557 unsigned long flags; 557 unsigned long flags;
558 spin_lock_irqsave(&t2_hae_lock, flags); 558 raw_spin_lock_irqsave(&t2_hae_lock, flags);
559 559
560 t2_set_hae; 560 t2_set_hae;
561 561
562 work = (addr << 5) + T2_SPARSE_MEM + 0x18; 562 work = (addr << 5) + T2_SPARSE_MEM + 0x18;
563 *(vuip)work = b; 563 *(vuip)work = b;
564 *(vuip)(work + (4 << 5)) = b >> 32; 564 *(vuip)(work + (4 << 5)) = b >> 32;
565 spin_unlock_irqrestore(&t2_hae_lock, flags); 565 raw_spin_unlock_irqrestore(&t2_hae_lock, flags);
566} 566}
567 567
568__EXTERN_INLINE void __iomem *t2_ioportmap(unsigned long addr) 568__EXTERN_INLINE void __iomem *t2_ioportmap(unsigned long addr)
diff --git a/arch/alpha/include/asm/spinlock.h b/arch/alpha/include/asm/spinlock.h
index e38fb95cb335..d0faca1e992d 100644
--- a/arch/alpha/include/asm/spinlock.h
+++ b/arch/alpha/include/asm/spinlock.h
@@ -12,18 +12,18 @@
12 * We make no fairness assumptions. They have a cost. 12 * We make no fairness assumptions. They have a cost.
13 */ 13 */
14 14
15#define __raw_spin_lock_flags(lock, flags) __raw_spin_lock(lock) 15#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
16#define __raw_spin_is_locked(x) ((x)->lock != 0) 16#define arch_spin_is_locked(x) ((x)->lock != 0)
17#define __raw_spin_unlock_wait(x) \ 17#define arch_spin_unlock_wait(x) \
18 do { cpu_relax(); } while ((x)->lock) 18 do { cpu_relax(); } while ((x)->lock)
19 19
20static inline void __raw_spin_unlock(raw_spinlock_t * lock) 20static inline void arch_spin_unlock(arch_spinlock_t * lock)
21{ 21{
22 mb(); 22 mb();
23 lock->lock = 0; 23 lock->lock = 0;
24} 24}
25 25
26static inline void __raw_spin_lock(raw_spinlock_t * lock) 26static inline void arch_spin_lock(arch_spinlock_t * lock)
27{ 27{
28 long tmp; 28 long tmp;
29 29
@@ -43,24 +43,24 @@ static inline void __raw_spin_lock(raw_spinlock_t * lock)
43 : "m"(lock->lock) : "memory"); 43 : "m"(lock->lock) : "memory");
44} 44}
45 45
46static inline int __raw_spin_trylock(raw_spinlock_t *lock) 46static inline int arch_spin_trylock(arch_spinlock_t *lock)
47{ 47{
48 return !test_and_set_bit(0, &lock->lock); 48 return !test_and_set_bit(0, &lock->lock);
49} 49}
50 50
51/***********************************************************/ 51/***********************************************************/
52 52
53static inline int __raw_read_can_lock(raw_rwlock_t *lock) 53static inline int arch_read_can_lock(arch_rwlock_t *lock)
54{ 54{
55 return (lock->lock & 1) == 0; 55 return (lock->lock & 1) == 0;
56} 56}
57 57
58static inline int __raw_write_can_lock(raw_rwlock_t *lock) 58static inline int arch_write_can_lock(arch_rwlock_t *lock)
59{ 59{
60 return lock->lock == 0; 60 return lock->lock == 0;
61} 61}
62 62
63static inline void __raw_read_lock(raw_rwlock_t *lock) 63static inline void arch_read_lock(arch_rwlock_t *lock)
64{ 64{
65 long regx; 65 long regx;
66 66
@@ -80,7 +80,7 @@ static inline void __raw_read_lock(raw_rwlock_t *lock)
80 : "m" (*lock) : "memory"); 80 : "m" (*lock) : "memory");
81} 81}
82 82
83static inline void __raw_write_lock(raw_rwlock_t *lock) 83static inline void arch_write_lock(arch_rwlock_t *lock)
84{ 84{
85 long regx; 85 long regx;
86 86
@@ -100,7 +100,7 @@ static inline void __raw_write_lock(raw_rwlock_t *lock)
100 : "m" (*lock) : "memory"); 100 : "m" (*lock) : "memory");
101} 101}
102 102
103static inline int __raw_read_trylock(raw_rwlock_t * lock) 103static inline int arch_read_trylock(arch_rwlock_t * lock)
104{ 104{
105 long regx; 105 long regx;
106 int success; 106 int success;
@@ -122,7 +122,7 @@ static inline int __raw_read_trylock(raw_rwlock_t * lock)
122 return success; 122 return success;
123} 123}
124 124
125static inline int __raw_write_trylock(raw_rwlock_t * lock) 125static inline int arch_write_trylock(arch_rwlock_t * lock)
126{ 126{
127 long regx; 127 long regx;
128 int success; 128 int success;
@@ -144,7 +144,7 @@ static inline int __raw_write_trylock(raw_rwlock_t * lock)
144 return success; 144 return success;
145} 145}
146 146
147static inline void __raw_read_unlock(raw_rwlock_t * lock) 147static inline void arch_read_unlock(arch_rwlock_t * lock)
148{ 148{
149 long regx; 149 long regx;
150 __asm__ __volatile__( 150 __asm__ __volatile__(
@@ -160,17 +160,17 @@ static inline void __raw_read_unlock(raw_rwlock_t * lock)
160 : "m" (*lock) : "memory"); 160 : "m" (*lock) : "memory");
161} 161}
162 162
163static inline void __raw_write_unlock(raw_rwlock_t * lock) 163static inline void arch_write_unlock(arch_rwlock_t * lock)
164{ 164{
165 mb(); 165 mb();
166 lock->lock = 0; 166 lock->lock = 0;
167} 167}
168 168
169#define __raw_read_lock_flags(lock, flags) __raw_read_lock(lock) 169#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
170#define __raw_write_lock_flags(lock, flags) __raw_write_lock(lock) 170#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
171 171
172#define _raw_spin_relax(lock) cpu_relax() 172#define arch_spin_relax(lock) cpu_relax()
173#define _raw_read_relax(lock) cpu_relax() 173#define arch_read_relax(lock) cpu_relax()
174#define _raw_write_relax(lock) cpu_relax() 174#define arch_write_relax(lock) cpu_relax()
175 175
176#endif /* _ALPHA_SPINLOCK_H */ 176#endif /* _ALPHA_SPINLOCK_H */
diff --git a/arch/alpha/include/asm/spinlock_types.h b/arch/alpha/include/asm/spinlock_types.h
index 8141eb5ebf0d..54c2afce0a1d 100644
--- a/arch/alpha/include/asm/spinlock_types.h
+++ b/arch/alpha/include/asm/spinlock_types.h
@@ -7,14 +7,14 @@
7 7
8typedef struct { 8typedef struct {
9 volatile unsigned int lock; 9 volatile unsigned int lock;
10} raw_spinlock_t; 10} arch_spinlock_t;
11 11
12#define __RAW_SPIN_LOCK_UNLOCKED { 0 } 12#define __ARCH_SPIN_LOCK_UNLOCKED { 0 }
13 13
14typedef struct { 14typedef struct {
15 volatile unsigned int lock; 15 volatile unsigned int lock;
16} raw_rwlock_t; 16} arch_rwlock_t;
17 17
18#define __RAW_RW_LOCK_UNLOCKED { 0 } 18#define __ARCH_RW_LOCK_UNLOCKED { 0 }
19 19
20#endif 20#endif
diff --git a/arch/alpha/kernel/core_t2.c b/arch/alpha/kernel/core_t2.c
index d9980d47ab81..e6d90568b65d 100644
--- a/arch/alpha/kernel/core_t2.c
+++ b/arch/alpha/kernel/core_t2.c
@@ -74,7 +74,7 @@
74# define DBG(args) 74# define DBG(args)
75#endif 75#endif
76 76
77DEFINE_SPINLOCK(t2_hae_lock); 77DEFINE_RAW_SPINLOCK(t2_hae_lock);
78 78
79static volatile unsigned int t2_mcheck_any_expected; 79static volatile unsigned int t2_mcheck_any_expected;
80static volatile unsigned int t2_mcheck_last_taken; 80static volatile unsigned int t2_mcheck_last_taken;
diff --git a/arch/alpha/kernel/irq.c b/arch/alpha/kernel/irq.c
index c0de072b8305..5f2cf23c4648 100644
--- a/arch/alpha/kernel/irq.c
+++ b/arch/alpha/kernel/irq.c
@@ -81,7 +81,7 @@ show_interrupts(struct seq_file *p, void *v)
81#endif 81#endif
82 82
83 if (irq < ACTUAL_NR_IRQS) { 83 if (irq < ACTUAL_NR_IRQS) {
84 spin_lock_irqsave(&irq_desc[irq].lock, flags); 84 raw_spin_lock_irqsave(&irq_desc[irq].lock, flags);
85 action = irq_desc[irq].action; 85 action = irq_desc[irq].action;
86 if (!action) 86 if (!action)
87 goto unlock; 87 goto unlock;
@@ -105,7 +105,7 @@ show_interrupts(struct seq_file *p, void *v)
105 105
106 seq_putc(p, '\n'); 106 seq_putc(p, '\n');
107unlock: 107unlock:
108 spin_unlock_irqrestore(&irq_desc[irq].lock, flags); 108 raw_spin_unlock_irqrestore(&irq_desc[irq].lock, flags);
109 } else if (irq == ACTUAL_NR_IRQS) { 109 } else if (irq == ACTUAL_NR_IRQS) {
110#ifdef CONFIG_SMP 110#ifdef CONFIG_SMP
111 seq_puts(p, "IPI: "); 111 seq_puts(p, "IPI: ");