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Diffstat (limited to 'linux-core/drm_fence.c')
-rw-r--r--linux-core/drm_fence.c183
1 files changed, 106 insertions, 77 deletions
diff --git a/linux-core/drm_fence.c b/linux-core/drm_fence.c
index a6787b09..c25ff3b8 100644
--- a/linux-core/drm_fence.c
+++ b/linux-core/drm_fence.c
@@ -35,7 +35,7 @@
*/
void drm_fence_handler(struct drm_device * dev, uint32_t fence_class,
- uint32_t sequence, uint32_t type)
+ uint32_t sequence, uint32_t type, uint32_t error)
{
int wake = 0;
uint32_t diff;
@@ -49,6 +49,7 @@ void drm_fence_handler(struct drm_device * dev, uint32_t fence_class,
int is_exe = (type & DRM_FENCE_TYPE_EXE);
int ge_last_exe;
+
diff = (sequence - fc->exe_flush_sequence) & driver->sequence_mask;
if (fc->pending_exe_flush && is_exe && diff < driver->wrap_diff)
@@ -57,9 +58,6 @@ 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 (ge_last_exe)
- fc->pending_flush &= ~type;
-
if (is_exe && ge_last_exe) {
fc->last_exe_flush = sequence;
}
@@ -75,36 +73,66 @@ void drm_fence_handler(struct drm_device * dev, uint32_t fence_class,
}
}
+ fc->pending_flush &= ~type;
head = (found) ? &fence->ring : &fc->ring;
list_for_each_entry_safe_reverse(fence, next, head, ring) {
if (&fence->ring == &fc->ring)
break;
+ if (error) {
+ fence->error = error;
+ fence->signaled = fence->type;
+ fence->submitted_flush = fence->type;
+ fence->flush_mask = fence->type;
+ list_del_init(&fence->ring);
+ wake = 1;
+ break;
+ }
+
type |= fence->native_type;
relevant = type & fence->type;
if ((fence->signaled | relevant) != fence->signaled) {
fence->signaled |= relevant;
+ fence->flush_mask |= relevant;
+ fence->submitted_flush |= relevant;
DRM_DEBUG("Fence 0x%08lx signaled 0x%08x\n",
fence->base.hash.key, fence->signaled);
- fence->submitted_flush |= relevant;
wake = 1;
}
relevant = fence->flush_mask &
- ~(fence->signaled | fence->submitted_flush);
+ ~(fence->submitted_flush | fence->signaled);
- if (relevant) {
- fc->pending_flush |= relevant;
- fence->submitted_flush = fence->flush_mask;
- }
+ fc->pending_flush |= relevant;
+ fence->submitted_flush |= relevant;
if (!(fence->type & ~fence->signaled)) {
DRM_DEBUG("Fence completely signaled 0x%08lx\n",
fence->base.hash.key);
list_del_init(&fence->ring);
}
+
+ }
+
+ /*
+ * Reinstate lost flush flags.
+ */
+
+ if ((fc->pending_flush & type) != type) {
+ head = head->prev;
+ list_for_each_entry(fence, head, ring) {
+ if (&fence->ring == &fc->ring)
+ break;
+ diff = (fc->last_exe_flush - fence->sequence) &
+ driver->sequence_mask;
+ if (diff > driver->wrap_diff)
+ break;
+
+ relevant = fence->submitted_flush & ~fence->signaled;
+ fc->pending_flush |= relevant;
+ }
}
if (wake) {
@@ -141,6 +169,7 @@ void drm_fence_usage_deref_locked(struct drm_fence_object ** fence)
drm_ctl_free(tmp_fence, sizeof(*tmp_fence), DRM_MEM_FENCE);
}
}
+EXPORT_SYMBOL(drm_fence_usage_deref_locked);
void drm_fence_usage_deref_unlocked(struct drm_fence_object ** fence)
{
@@ -160,6 +189,7 @@ void drm_fence_usage_deref_unlocked(struct drm_fence_object ** fence)
mutex_unlock(&dev->struct_mutex);
}
}
+EXPORT_SYMBOL(drm_fence_usage_deref_unlocked);
struct drm_fence_object
*drm_fence_reference_locked(struct drm_fence_object *src)
@@ -178,7 +208,7 @@ void drm_fence_reference_unlocked(struct drm_fence_object **dst,
atomic_inc(&src->usage);
mutex_unlock(&src->dev->struct_mutex);
}
-
+EXPORT_SYMBOL(drm_fence_reference_unlocked);
static void drm_fence_object_destroy(struct drm_file *priv, struct drm_user_object * base)
{
@@ -206,6 +236,7 @@ int drm_fence_object_signaled(struct drm_fence_object * fence,
return signaled;
}
+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)
@@ -241,7 +272,8 @@ int drm_fence_object_flush(struct drm_fence_object * fence,
write_lock_irqsave(&fm->lock, flags);
fence->flush_mask |= type;
- if (fence->submitted_flush == fence->signaled) {
+ if ((fence->submitted_flush & fence->signaled)
+ == fence->submitted_flush) {
if ((fence->type & DRM_FENCE_TYPE_EXE) &&
!(fence->submitted_flush & DRM_FENCE_TYPE_EXE)) {
drm_fence_flush_exe(fc, driver, fence->sequence);
@@ -329,7 +361,15 @@ static int drm_fence_lazy_wait(struct drm_fence_object *fence,
if (ret == -EBUSY) {
DRM_ERROR("Fence timeout. "
"GPU lockup or fence driver was "
- "taken down.\n");
+ "taken down. %d 0x%08x 0x%02x 0x%02x 0x%02x\n",
+ fence->fence_class,
+ fence->sequence,
+ fence->type,
+ mask,
+ fence->signaled);
+ DRM_ERROR("Pending exe flush %d 0x%08x\n",
+ fc->pending_exe_flush,
+ fc->exe_flush_sequence);
}
return ((ret == -EINTR) ? -EAGAIN : ret);
}
@@ -348,6 +388,7 @@ int drm_fence_object_wait(struct drm_fence_object * fence,
if (mask & ~fence->type) {
DRM_ERROR("Wait trying to extend fence type"
" 0x%08x 0x%08x\n", mask, fence->type);
+ BUG();
return -EINVAL;
}
@@ -402,9 +443,11 @@ int drm_fence_object_wait(struct drm_fence_object * fence,
return 0;
}
+EXPORT_SYMBOL(drm_fence_object_wait);
+
int drm_fence_object_emit(struct drm_fence_object * fence,
- uint32_t fence_flags, uint32_t class, uint32_t type)
+ uint32_t fence_flags, uint32_t fence_class, uint32_t type)
{
struct drm_device *dev = fence->dev;
struct drm_fence_manager *fm = &dev->fm;
@@ -416,12 +459,12 @@ int drm_fence_object_emit(struct drm_fence_object * fence,
int ret;
drm_fence_unring(dev, &fence->ring);
- ret = driver->emit(dev, class, fence_flags, &sequence, &native_type);
+ ret = driver->emit(dev, fence_class, fence_flags, &sequence, &native_type);
if (ret)
return ret;
write_lock_irqsave(&fm->lock, flags);
- fence->fence_class = class;
+ fence->fence_class = fence_class;
fence->type = type;
fence->flush_mask = 0x00;
fence->submitted_flush = 0x00;
@@ -434,8 +477,9 @@ int drm_fence_object_emit(struct drm_fence_object * fence,
write_unlock_irqrestore(&fm->lock, flags);
return 0;
}
+EXPORT_SYMBOL(drm_fence_object_emit);
-static int drm_fence_object_init(struct drm_device * dev, uint32_t 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)
@@ -456,7 +500,7 @@ static int drm_fence_object_init(struct drm_device * dev, uint32_t class,
*/
INIT_LIST_HEAD(&fence->base.list);
- fence->fence_class = class;
+ fence->fence_class = fence_class;
fence->type = type;
fence->flush_mask = 0;
fence->submitted_flush = 0;
@@ -491,7 +535,7 @@ out:
}
EXPORT_SYMBOL(drm_fence_add_user_object);
-int drm_fence_object_create(struct drm_device * dev, uint32_t class, uint32_t type,
+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;
@@ -501,7 +545,7 @@ int drm_fence_object_create(struct drm_device * dev, uint32_t class, uint32_t ty
fence = drm_ctl_calloc(1, sizeof(*fence), DRM_MEM_FENCE);
if (!fence)
return -ENOMEM;
- ret = drm_fence_object_init(dev, class, type, flags, fence);
+ ret = drm_fence_object_init(dev, fence_class, type, flags, fence);
if (ret) {
drm_fence_usage_deref_unlocked(&fence);
return ret;
@@ -517,7 +561,7 @@ EXPORT_SYMBOL(drm_fence_object_create);
void drm_fence_manager_init(struct drm_device * dev)
{
struct drm_fence_manager *fm = &dev->fm;
- struct drm_fence_class_manager *class;
+ struct drm_fence_class_manager *fence_class;
struct drm_fence_driver *fed = dev->driver->fence_driver;
int i;
unsigned long flags;
@@ -533,11 +577,11 @@ void drm_fence_manager_init(struct drm_device * dev)
BUG_ON(fm->num_classes > _DRM_FENCE_CLASSES);
for (i=0; i<fm->num_classes; ++i) {
- class = &fm->fence_class[i];
+ fence_class = &fm->fence_class[i];
- INIT_LIST_HEAD(&class->ring);
- class->pending_flush = 0;
- DRM_INIT_WAITQUEUE(&class->fence_queue);
+ INIT_LIST_HEAD(&fence_class->ring);
+ fence_class->pending_flush = 0;
+ DRM_INIT_WAITQUEUE(&fence_class->fence_queue);
}
atomic_set(&fm->count, 0);
@@ -545,6 +589,24 @@ 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)
+{
+ struct drm_device *dev = fence->dev;
+ struct drm_fence_manager *fm = &dev->fm;
+ unsigned long irq_flags;
+
+ read_lock_irqsave(&fm->lock, irq_flags);
+ arg->handle = fence->base.hash.key;
+ arg->fence_class = fence->fence_class;
+ arg->type = fence->type;
+ arg->signaled = fence->signaled;
+ arg->error = fence->error;
+ arg->sequence = fence->sequence;
+ read_unlock_irqrestore(&fm->lock, irq_flags);
+}
+EXPORT_SYMBOL(drm_fence_fill_arg);
+
+
void drm_fence_manager_takedown(struct drm_device * dev)
{
}
@@ -572,7 +634,6 @@ int drm_fence_create_ioctl(struct drm_device *dev, void *data, struct drm_file *
struct drm_fence_manager *fm = &dev->fm;
struct drm_fence_arg *arg = data;
struct drm_fence_object *fence;
- unsigned long flags;
ret = 0;
if (!fm->initialized) {
@@ -597,14 +658,11 @@ int drm_fence_create_ioctl(struct drm_device *dev, void *data, struct drm_file *
/*
* usage > 0. No need to lock dev->struct_mutex;
*/
-
+
arg->handle = fence->base.hash.key;
- read_lock_irqsave(&fm->lock, flags);
- arg->fence_class = fence->fence_class;
- arg->type = fence->type;
- arg->signaled = fence->signaled;
- read_unlock_irqrestore(&fm->lock, flags);
+
+ drm_fence_fill_arg(fence, arg);
drm_fence_usage_deref_unlocked(&fence);
return ret;
@@ -642,7 +700,6 @@ int drm_fence_reference_ioctl(struct drm_device *dev, void *data, struct drm_fil
struct drm_fence_arg *arg = data;
struct drm_fence_object *fence;
struct drm_user_object *uo;
- unsigned long flags;
ret = 0;
if (!fm->initialized) {
@@ -654,12 +711,7 @@ int drm_fence_reference_ioctl(struct drm_device *dev, void *data, struct drm_fil
if (ret)
return ret;
fence = drm_lookup_fence_object(file_priv, arg->handle);
-
- read_lock_irqsave(&fm->lock, flags);
- arg->fence_class = fence->fence_class;
- arg->type = fence->type;
- arg->signaled = fence->signaled;
- read_unlock_irqrestore(&fm->lock, flags);
+ drm_fence_fill_arg(fence, arg);
drm_fence_usage_deref_unlocked(&fence);
return ret;
@@ -687,7 +739,6 @@ int drm_fence_signaled_ioctl(struct drm_device *dev, void *data, struct drm_file
struct drm_fence_manager *fm = &dev->fm;
struct drm_fence_arg *arg = data;
struct drm_fence_object *fence;
- unsigned long flags;
ret = 0;
if (!fm->initialized) {
@@ -699,11 +750,7 @@ int drm_fence_signaled_ioctl(struct drm_device *dev, void *data, struct drm_file
if (!fence)
return -EINVAL;
- read_lock_irqsave(&fm->lock, flags);
- arg->fence_class = fence->fence_class;
- arg->type = fence->type;
- arg->signaled = fence->signaled;
- read_unlock_irqrestore(&fm->lock, flags);
+ drm_fence_fill_arg(fence, arg);
drm_fence_usage_deref_unlocked(&fence);
return ret;
@@ -715,7 +762,6 @@ int drm_fence_flush_ioctl(struct drm_device *dev, void *data, struct drm_file *f
struct drm_fence_manager *fm = &dev->fm;
struct drm_fence_arg *arg = data;
struct drm_fence_object *fence;
- unsigned long flags;
ret = 0;
if (!fm->initialized) {
@@ -728,11 +774,7 @@ int drm_fence_flush_ioctl(struct drm_device *dev, void *data, struct drm_file *f
return -EINVAL;
ret = drm_fence_object_flush(fence, arg->type);
- read_lock_irqsave(&fm->lock, flags);
- arg->fence_class = fence->fence_class;
- arg->type = fence->type;
- arg->signaled = fence->signaled;
- read_unlock_irqrestore(&fm->lock, flags);
+ drm_fence_fill_arg(fence, arg);
drm_fence_usage_deref_unlocked(&fence);
return ret;
@@ -745,7 +787,6 @@ int drm_fence_wait_ioctl(struct drm_device *dev, void *data, struct drm_file *fi
struct drm_fence_manager *fm = &dev->fm;
struct drm_fence_arg *arg = data;
struct drm_fence_object *fence;
- unsigned long flags;
ret = 0;
if (!fm->initialized) {
@@ -760,11 +801,7 @@ int drm_fence_wait_ioctl(struct drm_device *dev, void *data, struct drm_file *fi
arg->flags & DRM_FENCE_FLAG_WAIT_LAZY,
0, arg->type);
- read_lock_irqsave(&fm->lock, flags);
- arg->fence_class = fence->fence_class;
- arg->type = fence->type;
- arg->signaled = fence->signaled;
- read_unlock_irqrestore(&fm->lock, flags);
+ drm_fence_fill_arg(fence, arg);
drm_fence_usage_deref_unlocked(&fence);
return ret;
@@ -777,7 +814,6 @@ int drm_fence_emit_ioctl(struct drm_device *dev, void *data, struct drm_file *fi
struct drm_fence_manager *fm = &dev->fm;
struct drm_fence_arg *arg = data;
struct drm_fence_object *fence;
- unsigned long flags;
ret = 0;
if (!fm->initialized) {
@@ -792,11 +828,7 @@ int drm_fence_emit_ioctl(struct drm_device *dev, void *data, struct drm_file *fi
ret = drm_fence_object_emit(fence, arg->flags, arg->fence_class,
arg->type);
- read_lock_irqsave(&fm->lock, flags);
- arg->fence_class = fence->fence_class;
- arg->type = fence->type;
- arg->signaled = fence->signaled;
- read_unlock_irqrestore(&fm->lock, flags);
+ drm_fence_fill_arg(fence, arg);
drm_fence_usage_deref_unlocked(&fence);
return ret;
@@ -808,7 +840,6 @@ int drm_fence_buffers_ioctl(struct drm_device *dev, void *data, struct drm_file
struct drm_fence_manager *fm = &dev->fm;
struct drm_fence_arg *arg = data;
struct drm_fence_object *fence;
- unsigned long flags;
ret = 0;
if (!fm->initialized) {
@@ -821,24 +852,22 @@ int drm_fence_buffers_ioctl(struct drm_device *dev, void *data, struct drm_file
return -EINVAL;
}
LOCK_TEST_WITH_RETURN(dev, file_priv);
- ret = drm_fence_buffer_objects(file_priv, NULL, arg->fence_class,
- arg->flags, NULL, &fence);
- if (ret)
- return ret;
- ret = drm_fence_add_user_object(file_priv, fence,
- arg->flags &
- DRM_FENCE_FLAG_SHAREABLE);
+ ret = drm_fence_buffer_objects(dev, NULL, arg->flags,
+ NULL, &fence);
if (ret)
return ret;
+ if (!(arg->flags & DRM_FENCE_FLAG_NO_USER)) {
+ ret = drm_fence_add_user_object(file_priv, fence,
+ arg->flags &
+ DRM_FENCE_FLAG_SHAREABLE);
+ if (ret)
+ return ret;
+ }
+
arg->handle = fence->base.hash.key;
- read_lock_irqsave(&fm->lock, flags);
- arg->fence_class = fence->fence_class;
- arg->type = fence->type;
- arg->signaled = fence->signaled;
- arg->sequence = fence->sequence;
- read_unlock_irqrestore(&fm->lock, flags);
+ drm_fence_fill_arg(fence, arg);
drm_fence_usage_deref_unlocked(&fence);
return ret;
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-07 12:12:50 +0000