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path: root/drivers/gpu/drm/nouveau/nouveau_fence.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_fence.c')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_fence.c75
1 files changed, 69 insertions, 6 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_fence.c b/drivers/gpu/drm/nouveau/nouveau_fence.c
index 6c946837a0aa..be3149932c2d 100644
--- a/drivers/gpu/drm/nouveau/nouveau_fence.c
+++ b/drivers/gpu/drm/nouveau/nouveau_fence.c
@@ -35,15 +35,34 @@
#include <engine/fifo.h>
+struct fence_work {
+ struct work_struct base;
+ struct list_head head;
+ void (*func)(void *);
+ void *data;
+};
+
+static void
+nouveau_fence_signal(struct nouveau_fence *fence)
+{
+ struct fence_work *work, *temp;
+
+ list_for_each_entry_safe(work, temp, &fence->work, head) {
+ schedule_work(&work->base);
+ list_del(&work->head);
+ }
+
+ fence->channel = NULL;
+ list_del(&fence->head);
+}
+
void
nouveau_fence_context_del(struct nouveau_fence_chan *fctx)
{
struct nouveau_fence *fence, *fnext;
spin_lock(&fctx->lock);
list_for_each_entry_safe(fence, fnext, &fctx->pending, head) {
- fence->channel = NULL;
- list_del(&fence->head);
- nouveau_fence_unref(&fence);
+ nouveau_fence_signal(fence);
}
spin_unlock(&fctx->lock);
}
@@ -57,6 +76,50 @@ nouveau_fence_context_new(struct nouveau_fence_chan *fctx)
}
static void
+nouveau_fence_work_handler(struct work_struct *kwork)
+{
+ struct fence_work *work = container_of(kwork, typeof(*work), base);
+ work->func(work->data);
+ kfree(work);
+}
+
+void
+nouveau_fence_work(struct nouveau_fence *fence,
+ void (*func)(void *), void *data)
+{
+ struct nouveau_channel *chan = fence->channel;
+ struct nouveau_fence_chan *fctx;
+ struct fence_work *work = NULL;
+
+ if (nouveau_fence_done(fence)) {
+ func(data);
+ return;
+ }
+
+ fctx = chan->fence;
+ work = kmalloc(sizeof(*work), GFP_KERNEL);
+ if (!work) {
+ WARN_ON(nouveau_fence_wait(fence, false, false));
+ func(data);
+ return;
+ }
+
+ spin_lock(&fctx->lock);
+ if (!fence->channel) {
+ spin_unlock(&fctx->lock);
+ kfree(work);
+ func(data);
+ return;
+ }
+
+ INIT_WORK(&work->base, nouveau_fence_work_handler);
+ work->func = func;
+ work->data = data;
+ list_add(&work->head, &fence->work);
+ spin_unlock(&fctx->lock);
+}
+
+static void
nouveau_fence_update(struct nouveau_channel *chan)
{
struct nouveau_fence_chan *fctx = chan->fence;
@@ -67,8 +130,7 @@ nouveau_fence_update(struct nouveau_channel *chan)
if (fctx->read(chan) < fence->sequence)
break;
- fence->channel = NULL;
- list_del(&fence->head);
+ nouveau_fence_signal(fence);
nouveau_fence_unref(&fence);
}
spin_unlock(&fctx->lock);
@@ -81,7 +143,7 @@ nouveau_fence_emit(struct nouveau_fence *fence, struct nouveau_channel *chan)
int ret;
fence->channel = chan;
- fence->timeout = jiffies + (3 * DRM_HZ);
+ fence->timeout = jiffies + (15 * DRM_HZ);
fence->sequence = ++fctx->sequence;
ret = fctx->emit(fence);
@@ -265,6 +327,7 @@ nouveau_fence_new(struct nouveau_channel *chan, bool sysmem,
if (!fence)
return -ENOMEM;
+ INIT_LIST_HEAD(&fence->work);
fence->sysmem = sysmem;
kref_init(&fence->kref);