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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2008-04-19 12:17:34 -0400
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-04-19 12:17:34 -0400
commitcf816ecb533ab96b883dfdc0db174598b5b5c4d2 (patch)
tree1b7705db288ae2917105e624b01fdf81e0882bf1 /include/asm-arm
parentadf6d34e460387ee3e8f1e1875d52bff51212c7d (diff)
parent15f7d677ccff6f0f5de8a1ee43a792567e9f9de9 (diff)
Merge branch 'merge-fixes' into devel
Diffstat (limited to 'include/asm-arm')
-rw-r--r--include/asm-arm/arch-iop13xx/adma.h5
-rw-r--r--include/asm-arm/arch-s3c2410/spi.h1
-rw-r--r--include/asm-arm/hardware/iop3xx-adma.h8
-rw-r--r--include/asm-arm/hardware/iop_adma.h2
-rw-r--r--include/asm-arm/ide.h8
-rw-r--r--include/asm-arm/semaphore-helper.h84
-rw-r--r--include/asm-arm/semaphore.h99
7 files changed, 2 insertions, 205 deletions
diff --git a/include/asm-arm/arch-iop13xx/adma.h b/include/asm-arm/arch-iop13xx/adma.h
index efd9a5eb1008..90d14ee564f5 100644
--- a/include/asm-arm/arch-iop13xx/adma.h
+++ b/include/asm-arm/arch-iop13xx/adma.h
@@ -454,11 +454,6 @@ static inline void iop_chan_append(struct iop_adma_chan *chan)
454 __raw_writel(adma_accr, ADMA_ACCR(chan)); 454 __raw_writel(adma_accr, ADMA_ACCR(chan));
455} 455}
456 456
457static inline void iop_chan_idle(int busy, struct iop_adma_chan *chan)
458{
459 do { } while (0);
460}
461
462static inline u32 iop_chan_get_status(struct iop_adma_chan *chan) 457static inline u32 iop_chan_get_status(struct iop_adma_chan *chan)
463{ 458{
464 return __raw_readl(ADMA_ACSR(chan)); 459 return __raw_readl(ADMA_ACSR(chan));
diff --git a/include/asm-arm/arch-s3c2410/spi.h b/include/asm-arm/arch-s3c2410/spi.h
index 7ca0ed97a6d0..352d33860b63 100644
--- a/include/asm-arm/arch-s3c2410/spi.h
+++ b/include/asm-arm/arch-s3c2410/spi.h
@@ -15,6 +15,7 @@
15 15
16struct s3c2410_spi_info { 16struct s3c2410_spi_info {
17 unsigned long pin_cs; /* simple gpio cs */ 17 unsigned long pin_cs; /* simple gpio cs */
18 unsigned int num_cs; /* total chipselects */
18 19
19 void (*set_cs)(struct s3c2410_spi_info *spi, int cs, int pol); 20 void (*set_cs)(struct s3c2410_spi_info *spi, int cs, int pol);
20}; 21};
diff --git a/include/asm-arm/hardware/iop3xx-adma.h b/include/asm-arm/hardware/iop3xx-adma.h
index 5c529e6a5e3b..84d635b0a71a 100644
--- a/include/asm-arm/hardware/iop3xx-adma.h
+++ b/include/asm-arm/hardware/iop3xx-adma.h
@@ -767,20 +767,12 @@ static inline int iop_desc_get_zero_result(struct iop_adma_desc_slot *desc)
767static inline void iop_chan_append(struct iop_adma_chan *chan) 767static inline void iop_chan_append(struct iop_adma_chan *chan)
768{ 768{
769 u32 dma_chan_ctrl; 769 u32 dma_chan_ctrl;
770 /* workaround dropped interrupts on 3xx */
771 mod_timer(&chan->cleanup_watchdog, jiffies + msecs_to_jiffies(3));
772 770
773 dma_chan_ctrl = __raw_readl(DMA_CCR(chan)); 771 dma_chan_ctrl = __raw_readl(DMA_CCR(chan));
774 dma_chan_ctrl |= 0x2; 772 dma_chan_ctrl |= 0x2;
775 __raw_writel(dma_chan_ctrl, DMA_CCR(chan)); 773 __raw_writel(dma_chan_ctrl, DMA_CCR(chan));
776} 774}
777 775
778static inline void iop_chan_idle(int busy, struct iop_adma_chan *chan)
779{
780 if (!busy)
781 del_timer(&chan->cleanup_watchdog);
782}
783
784static inline u32 iop_chan_get_status(struct iop_adma_chan *chan) 776static inline u32 iop_chan_get_status(struct iop_adma_chan *chan)
785{ 777{
786 return __raw_readl(DMA_CSR(chan)); 778 return __raw_readl(DMA_CSR(chan));
diff --git a/include/asm-arm/hardware/iop_adma.h b/include/asm-arm/hardware/iop_adma.h
index ca8e71f44346..cb7e3611bcba 100644
--- a/include/asm-arm/hardware/iop_adma.h
+++ b/include/asm-arm/hardware/iop_adma.h
@@ -51,7 +51,6 @@ struct iop_adma_device {
51 * @common: common dmaengine channel object members 51 * @common: common dmaengine channel object members
52 * @last_used: place holder for allocation to continue from where it left off 52 * @last_used: place holder for allocation to continue from where it left off
53 * @all_slots: complete domain of slots usable by the channel 53 * @all_slots: complete domain of slots usable by the channel
54 * @cleanup_watchdog: workaround missed interrupts on iop3xx
55 * @slots_allocated: records the actual size of the descriptor slot pool 54 * @slots_allocated: records the actual size of the descriptor slot pool
56 * @irq_tasklet: bottom half where iop_adma_slot_cleanup runs 55 * @irq_tasklet: bottom half where iop_adma_slot_cleanup runs
57 */ 56 */
@@ -65,7 +64,6 @@ struct iop_adma_chan {
65 struct dma_chan common; 64 struct dma_chan common;
66 struct iop_adma_desc_slot *last_used; 65 struct iop_adma_desc_slot *last_used;
67 struct list_head all_slots; 66 struct list_head all_slots;
68 struct timer_list cleanup_watchdog;
69 int slots_allocated; 67 int slots_allocated;
70 struct tasklet_struct irq_tasklet; 68 struct tasklet_struct irq_tasklet;
71}; 69};
diff --git a/include/asm-arm/ide.h b/include/asm-arm/ide.h
index f348fcf3150b..88f4d231ce4f 100644
--- a/include/asm-arm/ide.h
+++ b/include/asm-arm/ide.h
@@ -17,14 +17,6 @@
17#define MAX_HWIFS 4 17#define MAX_HWIFS 4
18#endif 18#endif
19 19
20#if !defined(CONFIG_ARCH_L7200)
21# ifdef CONFIG_ARCH_CLPS7500
22# define ide_default_io_ctl(base) ((base) + 0x206) /* obsolete */
23# else
24# define ide_default_io_ctl(base) (0)
25# endif
26#endif /* !ARCH_L7200 */
27
28#define __ide_mm_insw(port,addr,len) readsw(port,addr,len) 20#define __ide_mm_insw(port,addr,len) readsw(port,addr,len)
29#define __ide_mm_insl(port,addr,len) readsl(port,addr,len) 21#define __ide_mm_insl(port,addr,len) readsl(port,addr,len)
30#define __ide_mm_outsw(port,addr,len) writesw(port,addr,len) 22#define __ide_mm_outsw(port,addr,len) writesw(port,addr,len)
diff --git a/include/asm-arm/semaphore-helper.h b/include/asm-arm/semaphore-helper.h
deleted file mode 100644
index 1d7f1987edb9..000000000000
--- a/include/asm-arm/semaphore-helper.h
+++ /dev/null
@@ -1,84 +0,0 @@
1#ifndef ASMARM_SEMAPHORE_HELPER_H
2#define ASMARM_SEMAPHORE_HELPER_H
3
4/*
5 * These two _must_ execute atomically wrt each other.
6 */
7static inline void wake_one_more(struct semaphore * sem)
8{
9 unsigned long flags;
10
11 spin_lock_irqsave(&semaphore_wake_lock, flags);
12 if (atomic_read(&sem->count) <= 0)
13 sem->waking++;
14 spin_unlock_irqrestore(&semaphore_wake_lock, flags);
15}
16
17static inline int waking_non_zero(struct semaphore *sem)
18{
19 unsigned long flags;
20 int ret = 0;
21
22 spin_lock_irqsave(&semaphore_wake_lock, flags);
23 if (sem->waking > 0) {
24 sem->waking--;
25 ret = 1;
26 }
27 spin_unlock_irqrestore(&semaphore_wake_lock, flags);
28 return ret;
29}
30
31/*
32 * waking non zero interruptible
33 * 1 got the lock
34 * 0 go to sleep
35 * -EINTR interrupted
36 *
37 * We must undo the sem->count down_interruptible() increment while we are
38 * protected by the spinlock in order to make this atomic_inc() with the
39 * atomic_read() in wake_one_more(), otherwise we can race. -arca
40 */
41static inline int waking_non_zero_interruptible(struct semaphore *sem,
42 struct task_struct *tsk)
43{
44 unsigned long flags;
45 int ret = 0;
46
47 spin_lock_irqsave(&semaphore_wake_lock, flags);
48 if (sem->waking > 0) {
49 sem->waking--;
50 ret = 1;
51 } else if (signal_pending(tsk)) {
52 atomic_inc(&sem->count);
53 ret = -EINTR;
54 }
55 spin_unlock_irqrestore(&semaphore_wake_lock, flags);
56 return ret;
57}
58
59/*
60 * waking_non_zero_try_lock:
61 * 1 failed to lock
62 * 0 got the lock
63 *
64 * We must undo the sem->count down_interruptible() increment while we are
65 * protected by the spinlock in order to make this atomic_inc() with the
66 * atomic_read() in wake_one_more(), otherwise we can race. -arca
67 */
68static inline int waking_non_zero_trylock(struct semaphore *sem)
69{
70 unsigned long flags;
71 int ret = 1;
72
73 spin_lock_irqsave(&semaphore_wake_lock, flags);
74 if (sem->waking <= 0)
75 atomic_inc(&sem->count);
76 else {
77 sem->waking--;
78 ret = 0;
79 }
80 spin_unlock_irqrestore(&semaphore_wake_lock, flags);
81 return ret;
82}
83
84#endif
diff --git a/include/asm-arm/semaphore.h b/include/asm-arm/semaphore.h
index 1c8b441f89e3..d9b2034ed1d2 100644
--- a/include/asm-arm/semaphore.h
+++ b/include/asm-arm/semaphore.h
@@ -1,98 +1 @@
1/* #include <linux/semaphore.h>
2 * linux/include/asm-arm/semaphore.h
3 */
4#ifndef __ASM_ARM_SEMAPHORE_H
5#define __ASM_ARM_SEMAPHORE_H
6
7#include <linux/linkage.h>
8#include <linux/spinlock.h>
9#include <linux/wait.h>
10#include <linux/rwsem.h>
11
12#include <asm/atomic.h>
13#include <asm/locks.h>
14
15struct semaphore {
16 atomic_t count;
17 int sleepers;
18 wait_queue_head_t wait;
19};
20
21#define __SEMAPHORE_INIT(name, cnt) \
22{ \
23 .count = ATOMIC_INIT(cnt), \
24 .wait = __WAIT_QUEUE_HEAD_INITIALIZER((name).wait), \
25}
26
27#define __DECLARE_SEMAPHORE_GENERIC(name,count) \
28 struct semaphore name = __SEMAPHORE_INIT(name,count)
29
30#define DECLARE_MUTEX(name) __DECLARE_SEMAPHORE_GENERIC(name,1)
31
32static inline void sema_init(struct semaphore *sem, int val)
33{
34 atomic_set(&sem->count, val);
35 sem->sleepers = 0;
36 init_waitqueue_head(&sem->wait);
37}
38
39static inline void init_MUTEX(struct semaphore *sem)
40{
41 sema_init(sem, 1);
42}
43
44static inline void init_MUTEX_LOCKED(struct semaphore *sem)
45{
46 sema_init(sem, 0);
47}
48
49/*
50 * special register calling convention
51 */
52asmlinkage void __down_failed(void);
53asmlinkage int __down_interruptible_failed(void);
54asmlinkage int __down_trylock_failed(void);
55asmlinkage void __up_wakeup(void);
56
57extern void __down(struct semaphore * sem);
58extern int __down_interruptible(struct semaphore * sem);
59extern int __down_trylock(struct semaphore * sem);
60extern void __up(struct semaphore * sem);
61
62/*
63 * This is ugly, but we want the default case to fall through.
64 * "__down" is the actual routine that waits...
65 */
66static inline void down(struct semaphore * sem)
67{
68 might_sleep();
69 __down_op(sem, __down_failed);
70}
71
72/*
73 * This is ugly, but we want the default case to fall through.
74 * "__down_interruptible" is the actual routine that waits...
75 */
76static inline int down_interruptible (struct semaphore * sem)
77{
78 might_sleep();
79 return __down_op_ret(sem, __down_interruptible_failed);
80}
81
82static inline int down_trylock(struct semaphore *sem)
83{
84 return __down_op_ret(sem, __down_trylock_failed);
85}
86
87/*
88 * Note! This is subtle. We jump to wake people up only if
89 * the semaphore was negative (== somebody was waiting on it).
90 * The default case (no contention) will result in NO
91 * jumps for both down() and up().
92 */
93static inline void up(struct semaphore * sem)
94{
95 __up_op(sem, __up_wakeup);
96}
97
98#endif