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Diffstat (limited to 'arch/powerpc/platforms/iseries/viopath.c')
-rw-r--r--arch/powerpc/platforms/iseries/viopath.c21
1 files changed, 11 insertions, 10 deletions
diff --git a/arch/powerpc/platforms/iseries/viopath.c b/arch/powerpc/platforms/iseries/viopath.c
index 354b8dd2a2c1..6a0060a5f2ec 100644
--- a/arch/powerpc/platforms/iseries/viopath.c
+++ b/arch/powerpc/platforms/iseries/viopath.c
@@ -37,6 +37,7 @@
#include <linux/wait.h>
#include <linux/seq_file.h>
#include <linux/interrupt.h>
+#include <linux/completion.h>
#include <asm/system.h>
#include <asm/uaccess.h>
@@ -81,7 +82,7 @@ static void handleMonitorEvent(struct HvLpEvent *event);
* if system_state is not SYSTEM_RUNNING, then wait_atomic is used ...
*/
struct alloc_parms {
- struct semaphore sem;
+ struct completion done;
int number;
atomic_t wait_atomic;
int used_wait_atomic;
@@ -115,7 +116,7 @@ static int proc_viopath_show(struct seq_file *m, void *v)
u16 vlanMap;
dma_addr_t handle;
HvLpEvent_Rc hvrc;
- DECLARE_MUTEX_LOCKED(Semaphore);
+ DECLARE_COMPLETION(done);
struct device_node *node;
const char *sysid;
@@ -132,13 +133,13 @@ static int proc_viopath_show(struct seq_file *m, void *v)
HvLpEvent_AckInd_DoAck, HvLpEvent_AckType_ImmediateAck,
viopath_sourceinst(viopath_hostLp),
viopath_targetinst(viopath_hostLp),
- (u64)(unsigned long)&Semaphore, VIOVERSION << 16,
+ (u64)(unsigned long)&done, VIOVERSION << 16,
((u64)handle) << 32, HW_PAGE_SIZE, 0, 0);
if (hvrc != HvLpEvent_Rc_Good)
printk(VIOPATH_KERN_WARN "hv error on op %d\n", (int)hvrc);
- down(&Semaphore);
+ wait_for_completion(&done);
vlanMap = HvLpConfig_getVirtualLanIndexMap();
@@ -353,7 +354,7 @@ static void handleConfig(struct HvLpEvent *event)
return;
}
- up((struct semaphore *)event->xCorrelationToken);
+ complete((struct completion *)event->xCorrelationToken);
}
/*
@@ -464,7 +465,7 @@ static void viopath_donealloc(void *parm, int number)
if (parmsp->used_wait_atomic)
atomic_set(&parmsp->wait_atomic, 0);
else
- up(&parmsp->sem);
+ complete(&parmsp->done);
}
static int allocateEvents(HvLpIndex remoteLp, int numEvents)
@@ -476,7 +477,7 @@ static int allocateEvents(HvLpIndex remoteLp, int numEvents)
atomic_set(&parms.wait_atomic, 1);
} else {
parms.used_wait_atomic = 0;
- init_MUTEX_LOCKED(&parms.sem);
+ init_completion(&parms.done);
}
mf_allocate_lp_events(remoteLp, HvLpEvent_Type_VirtualIo, 250, /* It would be nice to put a real number here! */
numEvents, &viopath_donealloc, &parms);
@@ -484,7 +485,7 @@ static int allocateEvents(HvLpIndex remoteLp, int numEvents)
while (atomic_read(&parms.wait_atomic))
mb();
} else
- down(&parms.sem);
+ wait_for_completion(&parms.done);
return parms.number;
}
@@ -585,10 +586,10 @@ int viopath_close(HvLpIndex remoteLp, int subtype, int numReq)
spin_unlock_irqrestore(&statuslock, flags);
parms.used_wait_atomic = 0;
- init_MUTEX_LOCKED(&parms.sem);
+ init_completion(&parms.done);
mf_deallocate_lp_events(remoteLp, HvLpEvent_Type_VirtualIo,
numReq, &viopath_donealloc, &parms);
- down(&parms.sem);
+ wait_for_completion(&parms.done);
spin_lock_irqsave(&statuslock, flags);
for (i = 0, numOpen = 0; i < VIO_MAX_SUBTYPES; i++)