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Diffstat (limited to 'linux-core/drm_fence.c')
-rw-r--r--linux-core/drm_fence.c86
1 files changed, 41 insertions, 45 deletions
diff --git a/linux-core/drm_fence.c b/linux-core/drm_fence.c
index e696b42d..288b4db6 100644
--- a/linux-core/drm_fence.c
+++ b/linux-core/drm_fence.c
@@ -34,7 +34,7 @@
* Typically called by the IRQ handler.
*/
-void drm_fence_handler(struct drm_device * dev, uint32_t fence_class,
+void drm_fence_handler(struct drm_device *dev, uint32_t fence_class,
uint32_t sequence, uint32_t type, uint32_t error)
{
int wake = 0;
@@ -58,9 +58,8 @@ void drm_fence_handler(struct drm_device * dev, uint32_t fence_class,
diff = (sequence - fc->last_exe_flush) & driver->sequence_mask;
ge_last_exe = diff < driver->wrap_diff;
- if (is_exe && ge_last_exe) {
+ if (is_exe && ge_last_exe)
fc->last_exe_flush = sequence;
- }
if (list_empty(&fc->ring))
return;
@@ -123,11 +122,11 @@ void drm_fence_handler(struct drm_device * dev, uint32_t fence_class,
*/
if ((fc->pending_flush & type) != type) {
- head = head->prev;
+ head = head->prev;
list_for_each_entry(fence, head, ring) {
if (&fence->ring == &fc->ring)
break;
- diff = (fc->last_exe_flush - fence->sequence) &
+ diff = (fc->last_exe_flush - fence->sequence) &
driver->sequence_mask;
if (diff > driver->wrap_diff)
break;
@@ -141,10 +140,9 @@ void drm_fence_handler(struct drm_device * dev, uint32_t fence_class,
DRM_WAKEUP(&fc->fence_queue);
}
}
-
EXPORT_SYMBOL(drm_fence_handler);
-static void drm_fence_unring(struct drm_device * dev, struct list_head *ring)
+static void drm_fence_unring(struct drm_device *dev, struct list_head *ring)
{
struct drm_fence_manager *fm = &dev->fm;
unsigned long flags;
@@ -154,7 +152,7 @@ static void drm_fence_unring(struct drm_device * dev, struct list_head *ring)
write_unlock_irqrestore(&fm->lock, flags);
}
-void drm_fence_usage_deref_locked(struct drm_fence_object ** fence)
+void drm_fence_usage_deref_locked(struct drm_fence_object **fence)
{
struct drm_fence_object *tmp_fence = *fence;
struct drm_device *dev = tmp_fence->dev;
@@ -173,7 +171,7 @@ void drm_fence_usage_deref_locked(struct drm_fence_object ** fence)
}
EXPORT_SYMBOL(drm_fence_usage_deref_locked);
-void drm_fence_usage_deref_unlocked(struct drm_fence_object ** fence)
+void drm_fence_usage_deref_unlocked(struct drm_fence_object **fence)
{
struct drm_fence_object *tmp_fence = *fence;
struct drm_device *dev = tmp_fence->dev;
@@ -212,7 +210,8 @@ void drm_fence_reference_unlocked(struct drm_fence_object **dst,
}
EXPORT_SYMBOL(drm_fence_reference_unlocked);
-static void drm_fence_object_destroy(struct drm_file *priv, struct drm_user_object * base)
+static void drm_fence_object_destroy(struct drm_file *priv,
+ struct drm_user_object *base)
{
struct drm_fence_object *fence =
drm_user_object_entry(base, struct drm_fence_object, base);
@@ -220,7 +219,7 @@ static void drm_fence_object_destroy(struct drm_file *priv, struct drm_user_obje
drm_fence_usage_deref_locked(&fence);
}
-int drm_fence_object_signaled(struct drm_fence_object * fence,
+int drm_fence_object_signaled(struct drm_fence_object *fence,
uint32_t mask, int poke_flush)
{
unsigned long flags;
@@ -240,8 +239,9 @@ int drm_fence_object_signaled(struct drm_fence_object * fence,
}
EXPORT_SYMBOL(drm_fence_object_signaled);
-static void drm_fence_flush_exe(struct drm_fence_class_manager * fc,
- struct drm_fence_driver * driver, uint32_t sequence)
+static void drm_fence_flush_exe(struct drm_fence_class_manager *fc,
+ struct drm_fence_driver *driver,
+ uint32_t sequence)
{
uint32_t diff;
@@ -249,15 +249,13 @@ static void drm_fence_flush_exe(struct drm_fence_class_manager * fc,
fc->exe_flush_sequence = sequence;
fc->pending_exe_flush = 1;
} else {
- diff =
- (sequence - fc->exe_flush_sequence) & driver->sequence_mask;
- if (diff < driver->wrap_diff) {
+ diff = (sequence - fc->exe_flush_sequence) & driver->sequence_mask;
+ if (diff < driver->wrap_diff)
fc->exe_flush_sequence = sequence;
- }
}
}
-int drm_fence_object_flush(struct drm_fence_object * fence,
+int drm_fence_object_flush(struct drm_fence_object *fence,
uint32_t type)
{
struct drm_device *dev = fence->dev;
@@ -296,7 +294,8 @@ int drm_fence_object_flush(struct drm_fence_object * fence,
* wrapped around and reused.
*/
-void drm_fence_flush_old(struct drm_device * dev, uint32_t fence_class, uint32_t sequence)
+void drm_fence_flush_old(struct drm_device *dev, uint32_t fence_class,
+ uint32_t sequence)
{
struct drm_fence_manager *fm = &dev->fm;
struct drm_fence_class_manager *fc = &fm->fence_class[fence_class];
@@ -328,12 +327,10 @@ void drm_fence_flush_old(struct drm_device * dev, uint32_t fence_class, uint32_t
mutex_unlock(&dev->struct_mutex);
diff = (old_sequence - fence->sequence) & driver->sequence_mask;
read_unlock_irqrestore(&fm->lock, flags);
- if (diff < driver->wrap_diff) {
+ if (diff < driver->wrap_diff)
drm_fence_object_flush(fence, fence->type);
- }
drm_fence_usage_deref_unlocked(&fence);
}
-
EXPORT_SYMBOL(drm_fence_flush_old);
static int drm_fence_lazy_wait(struct drm_fence_object *fence,
@@ -378,7 +375,7 @@ static int drm_fence_lazy_wait(struct drm_fence_object *fence,
return 0;
}
-int drm_fence_object_wait(struct drm_fence_object * fence,
+int drm_fence_object_wait(struct drm_fence_object *fence,
int lazy, int ignore_signals, uint32_t mask)
{
struct drm_device *dev = fence->dev;
@@ -431,10 +428,9 @@ int drm_fence_object_wait(struct drm_fence_object * fence,
/*
* Avoid kernel-space busy-waits.
*/
-#if 1
if (!ignore_signals)
return -EAGAIN;
-#endif
+
do {
schedule();
signaled = drm_fence_object_signaled(fence, mask, 1);
@@ -447,9 +443,8 @@ int drm_fence_object_wait(struct drm_fence_object * fence,
}
EXPORT_SYMBOL(drm_fence_object_wait);
-
-int drm_fence_object_emit(struct drm_fence_object * fence,
- uint32_t fence_flags, uint32_t fence_class, uint32_t type)
+int drm_fence_object_emit(struct drm_fence_object *fence, uint32_t fence_flags,
+ uint32_t fence_class, uint32_t type)
{
struct drm_device *dev = fence->dev;
struct drm_fence_manager *fm = &dev->fm;
@@ -461,7 +456,8 @@ int drm_fence_object_emit(struct drm_fence_object * fence,
int ret;
drm_fence_unring(dev, &fence->ring);
- ret = driver->emit(dev, fence_class, fence_flags, &sequence, &native_type);
+ ret = driver->emit(dev, fence_class, fence_flags, &sequence,
+ &native_type);
if (ret)
return ret;
@@ -481,10 +477,10 @@ int drm_fence_object_emit(struct drm_fence_object * fence,
}
EXPORT_SYMBOL(drm_fence_object_emit);
-static int drm_fence_object_init(struct drm_device * dev, uint32_t fence_class,
+static int drm_fence_object_init(struct drm_device *dev, uint32_t fence_class,
uint32_t type,
uint32_t fence_flags,
- struct drm_fence_object * fence)
+ struct drm_fence_object *fence)
{
int ret = 0;
unsigned long flags;
@@ -497,7 +493,7 @@ static int drm_fence_object_init(struct drm_device * dev, uint32_t fence_class,
write_lock_irqsave(&fm->lock, flags);
INIT_LIST_HEAD(&fence->ring);
- /*
+ /*
* Avoid hitting BUG() for kernel-only fence objects.
*/
@@ -517,8 +513,8 @@ static int drm_fence_object_init(struct drm_device * dev, uint32_t fence_class,
return ret;
}
-int drm_fence_add_user_object(struct drm_file * priv, struct drm_fence_object * fence,
- int shareable)
+int drm_fence_add_user_object(struct drm_file *priv,
+ struct drm_fence_object *fence, int shareable)
{
struct drm_device *dev = priv->head->dev;
int ret;
@@ -537,8 +533,9 @@ out:
}
EXPORT_SYMBOL(drm_fence_add_user_object);
-int drm_fence_object_create(struct drm_device * dev, uint32_t fence_class, uint32_t type,
- unsigned flags, struct drm_fence_object ** c_fence)
+int drm_fence_object_create(struct drm_device *dev, uint32_t fence_class,
+ uint32_t type, unsigned flags,
+ struct drm_fence_object **c_fence)
{
struct drm_fence_object *fence;
int ret;
@@ -557,10 +554,9 @@ int drm_fence_object_create(struct drm_device * dev, uint32_t fence_class, uint3
return 0;
}
-
EXPORT_SYMBOL(drm_fence_object_create);
-void drm_fence_manager_init(struct drm_device * dev)
+void drm_fence_manager_init(struct drm_device *dev)
{
struct drm_fence_manager *fm = &dev->fm;
struct drm_fence_class_manager *fence_class;
@@ -578,7 +574,7 @@ void drm_fence_manager_init(struct drm_device * dev)
fm->num_classes = fed->num_classes;
BUG_ON(fm->num_classes > _DRM_FENCE_CLASSES);
- for (i=0; i<fm->num_classes; ++i) {
+ for (i = 0; i < fm->num_classes; ++i) {
fence_class = &fm->fence_class[i];
INIT_LIST_HEAD(&fence_class->ring);
@@ -591,7 +587,8 @@ void drm_fence_manager_init(struct drm_device * dev)
write_unlock_irqrestore(&fm->lock, flags);
}
-void drm_fence_fill_arg(struct drm_fence_object *fence, struct drm_fence_arg *arg)
+void drm_fence_fill_arg(struct drm_fence_object *fence,
+ struct drm_fence_arg *arg)
{
struct drm_device *dev = fence->dev;
struct drm_fence_manager *fm = &dev->fm;
@@ -608,12 +605,12 @@ void drm_fence_fill_arg(struct drm_fence_object *fence, struct drm_fence_arg *ar
}
EXPORT_SYMBOL(drm_fence_fill_arg);
-
-void drm_fence_manager_takedown(struct drm_device * dev)
+void drm_fence_manager_takedown(struct drm_device *dev)
{
}
-struct drm_fence_object *drm_lookup_fence_object(struct drm_file * priv, uint32_t handle)
+struct drm_fence_object *drm_lookup_fence_object(struct drm_file *priv,
+ uint32_t handle)
{
struct drm_device *dev = priv->head->dev;
struct drm_user_object *uo;
@@ -656,14 +653,13 @@ int drm_fence_create_ioctl(struct drm_device *dev, void *data, struct drm_file *
drm_fence_usage_deref_unlocked(&fence);
return ret;
}
-
+
/*
* usage > 0. No need to lock dev->struct_mutex;
*/
arg->handle = fence->base.hash.key;
-
drm_fence_fill_arg(fence, arg);
drm_fence_usage_deref_unlocked(&fence);