Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6

1 files changed, 36 insertions, 30 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.c b/drivers/gpu/drm/nouveau/nouveau_gem.c
index 69c76cf93407..ead7b8fc53fc 100644
--- a/drivers/gpu/drm/nouveau/nouveau_gem.c
+++ b/drivers/gpu/drm/nouveau/nouveau_gem.c
@@ -137,8 +137,6 @@ nouveau_gem_ioctl_new(struct drm_device *dev, void *data,
 	uint32_t flags = 0;
 	int ret = 0;
 
-	NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
-
 	if (unlikely(dev_priv->ttm.bdev.dev_mapping == NULL))
 		dev_priv->ttm.bdev.dev_mapping = dev_priv->dev->dev_mapping;
 
@@ -247,7 +245,7 @@ validate_fini_list(struct list_head *list, struct nouveau_fence *fence)
 		list_del(&nvbo->entry);
 		nvbo->reserved_by = NULL;
 		ttm_bo_unreserve(&nvbo->bo);
-		drm_gem_object_unreference(nvbo->gem);
+		drm_gem_object_unreference_unlocked(nvbo->gem);
 	}
 }
 
@@ -286,7 +284,7 @@ retry:
 		if (!gem) {
 			NV_ERROR(dev, "Unknown handle 0x%08x\n", b->handle);
 			validate_fini(op, NULL);
-			return -EINVAL;
+			return -ENOENT;
 		}
 		nvbo = gem->driver_private;
 
@@ -302,7 +300,7 @@ retry:
 			validate_fini(op, NULL);
 			if (ret == -EAGAIN)
 				ret = ttm_bo_wait_unreserved(&nvbo->bo, false);
-			drm_gem_object_unreference(gem);
+			drm_gem_object_unreference_unlocked(gem);
 			if (ret) {
 				NV_ERROR(dev, "fail reserve\n");
 				return ret;
@@ -339,7 +337,9 @@ retry:
 				return -EINVAL;
 			}
 
+			mutex_unlock(&drm_global_mutex);
 			ret = ttm_bo_wait_cpu(&nvbo->bo, false);
+			mutex_lock(&drm_global_mutex);
 			if (ret) {
 				NV_ERROR(dev, "fail wait_cpu\n");
 				return ret;
@@ -363,16 +363,11 @@ validate_list(struct nouveau_channel *chan, struct list_head *list,
 
 	list_for_each_entry(nvbo, list, entry) {
 		struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[nvbo->pbbo_index];
-		struct nouveau_fence *prev_fence = nvbo->bo.sync_obj;
 
-		if (prev_fence && nouveau_fence_channel(prev_fence) != chan) {
-			spin_lock(&nvbo->bo.lock);
-			ret = ttm_bo_wait(&nvbo->bo, false, false, false);
-			spin_unlock(&nvbo->bo.lock);
-			if (unlikely(ret)) {
-				NV_ERROR(dev, "fail wait other chan\n");
-				return ret;
-			}
+		ret = nouveau_bo_sync_gpu(nvbo, chan);
+		if (unlikely(ret)) {
+			NV_ERROR(dev, "fail pre-validate sync\n");
+			return ret;
 		}
 
 		ret = nouveau_gem_set_domain(nvbo->gem, b->read_domains,
@@ -383,7 +378,7 @@ validate_list(struct nouveau_channel *chan, struct list_head *list,
 			return ret;
 		}
 
-		nvbo->channel = chan;
+		nvbo->channel = (b->read_domains & (1 << 31)) ? NULL : chan;
 		ret = ttm_bo_validate(&nvbo->bo, &nvbo->placement,
 				      false, false, false);
 		nvbo->channel = NULL;
@@ -392,6 +387,12 @@ validate_list(struct nouveau_channel *chan, struct list_head *list,
 			return ret;
 		}
 
+		ret = nouveau_bo_sync_gpu(nvbo, chan);
+		if (unlikely(ret)) {
+			NV_ERROR(dev, "fail post-validate sync\n");
+			return ret;
+		}
+
 		if (nvbo->bo.offset == b->presumed.offset &&
 		    ((nvbo->bo.mem.mem_type == TTM_PL_VRAM &&
 		      b->presumed.domain & NOUVEAU_GEM_DOMAIN_VRAM) ||
@@ -577,10 +578,9 @@ nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
 	struct drm_nouveau_gem_pushbuf_bo *bo;
 	struct nouveau_channel *chan;
 	struct validate_op op;
-	struct nouveau_fence *fence = 0;
+	struct nouveau_fence *fence = NULL;
 	int i, j, ret = 0, do_reloc = 0;
 
-	NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
 	NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(req->channel, file_priv, chan);
 
 	req->vram_available = dev_priv->fb_aper_free;
@@ -616,7 +616,20 @@ nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
 		return PTR_ERR(bo);
 	}
 
-	mutex_lock(&dev->struct_mutex);
+	/* Mark push buffers as being used on PFIFO, the validation code
+	 * will then make sure that if the pushbuf bo moves, that they
+	 * happen on the kernel channel, which will in turn cause a sync
+	 * to happen before we try and submit the push buffer.
+	 */
+	for (i = 0; i < req->nr_push; i++) {
+		if (push[i].bo_index >= req->nr_buffers) {
+			NV_ERROR(dev, "push %d buffer not in list\n", i);
+			ret = -EINVAL;
+			goto out;
+		}
+
+		bo[push[i].bo_index].read_domains |= (1 << 31);
+	}
 
 	/* Validate buffer list */
 	ret = nouveau_gem_pushbuf_validate(chan, file_priv, bo, req->buffers,
@@ -650,7 +663,7 @@ nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
 				      push[i].length);
 		}
 	} else
-	if (dev_priv->card_type >= NV_20) {
+	if (dev_priv->chipset >= 0x25) {
 		ret = RING_SPACE(chan, req->nr_push * 2);
 		if (ret) {
 			NV_ERROR(dev, "cal_space: %d\n", ret);
@@ -716,7 +729,6 @@ nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
 out:
 	validate_fini(&op, fence);
 	nouveau_fence_unref((void**)&fence);
-	mutex_unlock(&dev->struct_mutex);
 	kfree(bo);
 	kfree(push);
 
@@ -725,7 +737,7 @@ out_next:
 		req->suffix0 = 0x00000000;
 		req->suffix1 = 0x00000000;
 	} else
-	if (dev_priv->card_type >= NV_20) {
+	if (dev_priv->chipset >= 0x25) {
 		req->suffix0 = 0x00020000;
 		req->suffix1 = 0x00000000;
 	} else {
@@ -760,11 +772,9 @@ nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data,
 	bool no_wait = !!(req->flags & NOUVEAU_GEM_CPU_PREP_NOWAIT);
 	int ret = -EINVAL;
 
-	NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
-
 	gem = drm_gem_object_lookup(dev, file_priv, req->handle);
 	if (!gem)
-		return ret;
+		return -ENOENT;
 	nvbo = nouveau_gem_object(gem);
 
 	if (nvbo->cpu_filp) {
@@ -800,11 +810,9 @@ nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data,
 	struct nouveau_bo *nvbo;
 	int ret = -EINVAL;
 
-	NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
-
 	gem = drm_gem_object_lookup(dev, file_priv, req->handle);
 	if (!gem)
-		return ret;
+		return -ENOENT;
 	nvbo = nouveau_gem_object(gem);
 
 	if (nvbo->cpu_filp != file_priv)
@@ -827,11 +835,9 @@ nouveau_gem_ioctl_info(struct drm_device *dev, void *data,
 	struct drm_gem_object *gem;
 	int ret;
 
-	NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
-
 	gem = drm_gem_object_lookup(dev, file_priv, req->handle);
 	if (!gem)
-		return -EINVAL;
+		return -ENOENT;
 
 	ret = nouveau_gem_info(gem, req);
 	drm_gem_object_unreference_unlocked(gem);