1 files changed, 220 insertions, 170 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.c b/drivers/gpu/drm/nouveau/nouveau_gem.c
index 7ce3fde4074..c90c0dc0afe 100644
--- a/drivers/gpu/drm/nouveau/nouveau_gem.c
+++ b/drivers/gpu/drm/nouveau/nouveau_gem.c
@@ -23,58 +23,49 @@
  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  *
  */
-#include "drmP.h"
-#include "drm.h"
 
-#include "nouveau_drv.h"
+#include <subdev/fb.h>
+
 #include "nouveau_drm.h"
 #include "nouveau_dma.h"
+#include "nouveau_fence.h"
+#include "nouveau_abi16.h"
 
-#define nouveau_gem_pushbuf_sync(chan) 0
-
-int
-nouveau_gem_object_new(struct drm_gem_object *gem)
-{
-	return 0;
-}
+#include "nouveau_ttm.h"
+#include "nouveau_gem.h"
 
 void
 nouveau_gem_object_del(struct drm_gem_object *gem)
 {
-	struct nouveau_bo *nvbo = gem->driver_private;
+	struct nouveau_bo *nvbo = nouveau_gem_object(gem);
 	struct ttm_buffer_object *bo = &nvbo->bo;
 
-	if (!nvbo)
-		return;
-	nvbo->gem = NULL;
+	if (gem->import_attach)
+		drm_prime_gem_destroy(gem, nvbo->bo.sg);
 
-	if (unlikely(nvbo->pin_refcnt)) {
-		nvbo->pin_refcnt = 1;
-		nouveau_bo_unpin(nvbo);
-	}
+	drm_gem_object_release(gem);
 
+	/* reset filp so nouveau_bo_del_ttm() can test for it */
+	gem->filp = NULL;
 	ttm_bo_unref(&bo);
-
-	drm_gem_object_release(gem);
-	kfree(gem);
 }
 
 int
 nouveau_gem_object_open(struct drm_gem_object *gem, struct drm_file *file_priv)
 {
-	struct nouveau_fpriv *fpriv = nouveau_fpriv(file_priv);
+	struct nouveau_cli *cli = nouveau_cli(file_priv);
 	struct nouveau_bo *nvbo = nouveau_gem_object(gem);
 	struct nouveau_vma *vma;
 	int ret;
 
-	if (!fpriv->vm)
+	if (!cli->base.vm)
 		return 0;
 
 	ret = ttm_bo_reserve(&nvbo->bo, false, false, false, 0);
 	if (ret)
 		return ret;
 
-	vma = nouveau_bo_vma_find(nvbo, fpriv->vm);
+	vma = nouveau_bo_vma_find(nvbo, cli->base.vm);
 	if (!vma) {
 		vma = kzalloc(sizeof(*vma), GFP_KERNEL);
 		if (!vma) {
@@ -82,7 +73,7 @@ nouveau_gem_object_open(struct drm_gem_object *gem, struct drm_file *file_priv)
 			goto out;
 		}
 
-		ret = nouveau_bo_vma_add(nvbo, fpriv->vm, vma);
+		ret = nouveau_bo_vma_add(nvbo, cli->base.vm, vma);
 		if (ret) {
 			kfree(vma);
 			goto out;
@@ -96,27 +87,59 @@ out:
 	return ret;
 }
 
+static void
+nouveau_gem_object_delete(void *data)
+{
+	struct nouveau_vma *vma = data;
+	nouveau_vm_unmap(vma);
+	nouveau_vm_put(vma);
+	kfree(vma);
+}
+
+static void
+nouveau_gem_object_unmap(struct nouveau_bo *nvbo, struct nouveau_vma *vma)
+{
+	const bool mapped = nvbo->bo.mem.mem_type != TTM_PL_SYSTEM;
+	struct nouveau_fence *fence = NULL;
+
+	list_del(&vma->head);
+
+	if (mapped) {
+		spin_lock(&nvbo->bo.bdev->fence_lock);
+		fence = nouveau_fence_ref(nvbo->bo.sync_obj);
+		spin_unlock(&nvbo->bo.bdev->fence_lock);
+	}
+
+	if (fence) {
+		nouveau_fence_work(fence, nouveau_gem_object_delete, vma);
+	} else {
+		if (mapped)
+			nouveau_vm_unmap(vma);
+		nouveau_vm_put(vma);
+		kfree(vma);
+	}
+	nouveau_fence_unref(&fence);
+}
+
 void
 nouveau_gem_object_close(struct drm_gem_object *gem, struct drm_file *file_priv)
 {
-	struct nouveau_fpriv *fpriv = nouveau_fpriv(file_priv);
+	struct nouveau_cli *cli = nouveau_cli(file_priv);
 	struct nouveau_bo *nvbo = nouveau_gem_object(gem);
 	struct nouveau_vma *vma;
 	int ret;
 
-	if (!fpriv->vm)
+	if (!cli->base.vm)
 		return;
 
 	ret = ttm_bo_reserve(&nvbo->bo, false, false, false, 0);
 	if (ret)
 		return;
 
-	vma = nouveau_bo_vma_find(nvbo, fpriv->vm);
+	vma = nouveau_bo_vma_find(nvbo, cli->base.vm);
 	if (vma) {
-		if (--vma->refcount == 0) {
-			nouveau_bo_vma_del(nvbo, vma);
-			kfree(vma);
-		}
+		if (--vma->refcount == 0)
+			nouveau_gem_object_unmap(nvbo, vma);
 	}
 	ttm_bo_unreserve(&nvbo->bo);
 }
@@ -126,7 +149,7 @@ nouveau_gem_new(struct drm_device *dev, int size, int align, uint32_t domain,
 		uint32_t tile_mode, uint32_t tile_flags,
 		struct nouveau_bo **pnvbo)
 {
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_drm *drm = nouveau_drm(dev);
 	struct nouveau_bo *nvbo;
 	u32 flags = 0;
 	int ret;
@@ -139,7 +162,7 @@ nouveau_gem_new(struct drm_device *dev, int size, int align, uint32_t domain,
 		flags |= TTM_PL_FLAG_SYSTEM;
 
 	ret = nouveau_bo_new(dev, size, align, flags, tile_mode,
-			     tile_flags, pnvbo);
+			     tile_flags, NULL, pnvbo);
 	if (ret)
 		return ret;
 	nvbo = *pnvbo;
@@ -150,17 +173,18 @@ nouveau_gem_new(struct drm_device *dev, int size, int align, uint32_t domain,
 	 */
 	nvbo->valid_domains = NOUVEAU_GEM_DOMAIN_VRAM |
 			      NOUVEAU_GEM_DOMAIN_GART;
-	if (dev_priv->card_type >= NV_50)
+	if (nv_device(drm->device)->card_type >= NV_50)
 		nvbo->valid_domains &= domain;
 
-	nvbo->gem = drm_gem_object_alloc(dev, nvbo->bo.mem.size);
-	if (!nvbo->gem) {
+	/* Initialize the embedded gem-object. We return a single gem-reference
+	 * to the caller, instead of a normal nouveau_bo ttm reference. */
+	ret = drm_gem_object_init(dev, &nvbo->gem, nvbo->bo.mem.size);
+	if (ret) {
 		nouveau_bo_ref(NULL, pnvbo);
 		return -ENOMEM;
 	}
 
-	nvbo->bo.persistent_swap_storage = nvbo->gem->filp;
-	nvbo->gem->driver_private = nvbo;
+	nvbo->bo.persistent_swap_storage = nvbo->gem.filp;
 	return 0;
 }
 
@@ -168,7 +192,7 @@ static int
 nouveau_gem_info(struct drm_file *file_priv, struct drm_gem_object *gem,
 		 struct drm_nouveau_gem_info *rep)
 {
-	struct nouveau_fpriv *fpriv = nouveau_fpriv(file_priv);
+	struct nouveau_cli *cli = nouveau_cli(file_priv);
 	struct nouveau_bo *nvbo = nouveau_gem_object(gem);
 	struct nouveau_vma *vma;
 
@@ -178,8 +202,8 @@ nouveau_gem_info(struct drm_file *file_priv, struct drm_gem_object *gem,
 		rep->domain = NOUVEAU_GEM_DOMAIN_VRAM;
 
 	rep->offset = nvbo->bo.offset;
-	if (fpriv->vm) {
-		vma = nouveau_bo_vma_find(nvbo, fpriv->vm);
+	if (cli->base.vm) {
+		vma = nouveau_bo_vma_find(nvbo, cli->base.vm);
 		if (!vma)
 			return -EINVAL;
 
@@ -187,7 +211,7 @@ nouveau_gem_info(struct drm_file *file_priv, struct drm_gem_object *gem,
 	}
 
 	rep->size = nvbo->bo.mem.num_pages << PAGE_SHIFT;
-	rep->map_handle = nvbo->bo.addr_space_offset;
+	rep->map_handle = drm_vma_node_offset_addr(&nvbo->bo.vma_node);
 	rep->tile_mode = nvbo->tile_mode;
 	rep->tile_flags = nvbo->tile_flags;
 	return 0;
@@ -197,16 +221,15 @@ int
 nouveau_gem_ioctl_new(struct drm_device *dev, void *data,
 		      struct drm_file *file_priv)
 {
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_drm *drm = nouveau_drm(dev);
+	struct nouveau_cli *cli = nouveau_cli(file_priv);
+	struct nouveau_fb *pfb = nouveau_fb(drm->device);
 	struct drm_nouveau_gem_new *req = data;
 	struct nouveau_bo *nvbo = NULL;
 	int ret = 0;
 
-	if (unlikely(dev_priv->ttm.bdev.dev_mapping == NULL))
-		dev_priv->ttm.bdev.dev_mapping = dev_priv->dev->dev_mapping;
-
-	if (!dev_priv->engine.vram.flags_valid(dev, req->info.tile_flags)) {
-		NV_ERROR(dev, "bad page flags: 0x%08x\n", req->info.tile_flags);
+	if (!pfb->memtype_valid(pfb, req->info.tile_flags)) {
+		NV_ERROR(cli, "bad page flags: 0x%08x\n", req->info.tile_flags);
 		return -EINVAL;
 	}
 
@@ -216,15 +239,15 @@ nouveau_gem_ioctl_new(struct drm_device *dev, void *data,
 	if (ret)
 		return ret;
 
-	ret = drm_gem_handle_create(file_priv, nvbo->gem, &req->info.handle);
+	ret = drm_gem_handle_create(file_priv, &nvbo->gem, &req->info.handle);
 	if (ret == 0) {
-		ret = nouveau_gem_info(file_priv, nvbo->gem, &req->info);
+		ret = nouveau_gem_info(file_priv, &nvbo->gem, &req->info);
 		if (ret)
 			drm_gem_handle_delete(file_priv, req->info.handle);
 	}
 
 	/* drop reference from allocate - handle holds it now */
-	drm_gem_object_unreference_unlocked(nvbo->gem);
+	drm_gem_object_unreference_unlocked(&nvbo->gem);
 	return ret;
 }
 
@@ -232,7 +255,7 @@ static int
 nouveau_gem_set_domain(struct drm_gem_object *gem, uint32_t read_domains,
 		       uint32_t write_domains, uint32_t valid_domains)
 {
-	struct nouveau_bo *nvbo = gem->driver_private;
+	struct nouveau_bo *nvbo = nouveau_gem_object(gem);
 	struct ttm_buffer_object *bo = &nvbo->bo;
 	uint32_t domains = valid_domains & nvbo->valid_domains &
 		(write_domains ? write_domains : read_domains);
@@ -270,10 +293,12 @@ struct validate_op {
 	struct list_head vram_list;
 	struct list_head gart_list;
 	struct list_head both_list;
+	struct ww_acquire_ctx ticket;
 };
 
 static void
-validate_fini_list(struct list_head *list, struct nouveau_fence *fence)
+validate_fini_list(struct list_head *list, struct nouveau_fence *fence,
+		   struct ww_acquire_ctx *ticket)
 {
 	struct list_head *entry, *tmp;
 	struct nouveau_bo *nvbo;
@@ -281,7 +306,8 @@ validate_fini_list(struct list_head *list, struct nouveau_fence *fence)
 	list_for_each_safe(entry, tmp, list) {
 		nvbo = list_entry(entry, struct nouveau_bo, entry);
 
-		nouveau_bo_fence(nvbo, fence);
+		if (likely(fence))
+			nouveau_bo_fence(nvbo, fence);
 
 		if (unlikely(nvbo->validate_mapped)) {
 			ttm_bo_kunmap(&nvbo->kmap);
@@ -290,17 +316,24 @@ 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_unlocked(nvbo->gem);
+		ttm_bo_unreserve_ticket(&nvbo->bo, ticket);
+		drm_gem_object_unreference_unlocked(&nvbo->gem);
 	}
 }
 
 static void
-validate_fini(struct validate_op *op, struct nouveau_fence* fence)
+validate_fini_no_ticket(struct validate_op *op, struct nouveau_fence *fence)
 {
-	validate_fini_list(&op->vram_list, fence);
-	validate_fini_list(&op->gart_list, fence);
-	validate_fini_list(&op->both_list, fence);
+	validate_fini_list(&op->vram_list, fence, &op->ticket);
+	validate_fini_list(&op->gart_list, fence, &op->ticket);
+	validate_fini_list(&op->both_list, fence, &op->ticket);
+}
+
+static void
+validate_fini(struct validate_op *op, struct nouveau_fence *fence)
+{
+	validate_fini_no_ticket(op, fence);
+	ww_acquire_fini(&op->ticket);
 }
 
 static int
@@ -308,16 +341,16 @@ validate_init(struct nouveau_channel *chan, struct drm_file *file_priv,
 	      struct drm_nouveau_gem_pushbuf_bo *pbbo,
 	      int nr_buffers, struct validate_op *op)
 {
-	struct drm_device *dev = chan->dev;
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	uint32_t sequence;
+	struct nouveau_cli *cli = nouveau_cli(file_priv);
+	struct drm_device *dev = chan->drm->dev;
 	int trycnt = 0;
 	int ret, i;
+	struct nouveau_bo *res_bo = NULL;
 
-	sequence = atomic_add_return(1, &dev_priv->ttm.validate_sequence);
+	ww_acquire_init(&op->ticket, &reservation_ww_class);
 retry:
 	if (++trycnt > 100000) {
-		NV_ERROR(dev, "%s failed and gave up.\n", __func__);
+		NV_ERROR(cli, "%s failed and gave up.\n", __func__);
 		return -EINVAL;
 	}
 
@@ -328,31 +361,44 @@ retry:
 
 		gem = drm_gem_object_lookup(dev, file_priv, b->handle);
 		if (!gem) {
-			NV_ERROR(dev, "Unknown handle 0x%08x\n", b->handle);
+			NV_ERROR(cli, "Unknown handle 0x%08x\n", b->handle);
+			ww_acquire_done(&op->ticket);
 			validate_fini(op, NULL);
 			return -ENOENT;
 		}
-		nvbo = gem->driver_private;
+		nvbo = nouveau_gem_object(gem);
+		if (nvbo == res_bo) {
+			res_bo = NULL;
+			drm_gem_object_unreference_unlocked(gem);
+			continue;
+		}
 
 		if (nvbo->reserved_by && nvbo->reserved_by == file_priv) {
-			NV_ERROR(dev, "multiple instances of buffer %d on "
+			NV_ERROR(cli, "multiple instances of buffer %d on "
 				      "validation list\n", b->handle);
+			drm_gem_object_unreference_unlocked(gem);
+			ww_acquire_done(&op->ticket);
 			validate_fini(op, NULL);
 			return -EINVAL;
 		}
 
-		ret = ttm_bo_reserve(&nvbo->bo, true, false, true, sequence);
+		ret = ttm_bo_reserve(&nvbo->bo, true, false, true, &op->ticket);
 		if (ret) {
-			validate_fini(op, NULL);
-			if (unlikely(ret == -EAGAIN))
-				ret = ttm_bo_wait_unreserved(&nvbo->bo, true);
-			drm_gem_object_unreference_unlocked(gem);
+			validate_fini_no_ticket(op, NULL);
+			if (unlikely(ret == -EDEADLK)) {
+				ret = ttm_bo_reserve_slowpath(&nvbo->bo, true,
+							      &op->ticket);
+				if (!ret)
+					res_bo = nvbo;
+			}
 			if (unlikely(ret)) {
+				ww_acquire_done(&op->ticket);
+				ww_acquire_fini(&op->ticket);
+				drm_gem_object_unreference_unlocked(gem);
 				if (ret != -ERESTARTSYS)
-					NV_ERROR(dev, "fail reserve\n");
+					NV_ERROR(cli, "fail reserve\n");
 				return ret;
 			}
-			goto retry;
 		}
 
 		b->user_priv = (uint64_t)(unsigned long)nvbo;
@@ -368,14 +414,18 @@ retry:
 		if (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART)
 			list_add_tail(&nvbo->entry, &op->gart_list);
 		else {
-			NV_ERROR(dev, "invalid valid domains: 0x%08x\n",
+			NV_ERROR(cli, "invalid valid domains: 0x%08x\n",
 				 b->valid_domains);
 			list_add_tail(&nvbo->entry, &op->both_list);
+			ww_acquire_done(&op->ticket);
 			validate_fini(op, NULL);
 			return -EINVAL;
 		}
+		if (nvbo == res_bo)
+			goto retry;
 	}
 
+	ww_acquire_done(&op->ticket);
 	return 0;
 }
 
@@ -386,8 +436,7 @@ validate_sync(struct nouveau_channel *chan, struct nouveau_bo *nvbo)
 	int ret = 0;
 
 	spin_lock(&nvbo->bo.bdev->fence_lock);
-	if (nvbo->bo.sync_obj)
-		fence = nouveau_fence_ref(nvbo->bo.sync_obj);
+	fence = nouveau_fence_ref(nvbo->bo.sync_obj);
 	spin_unlock(&nvbo->bo.bdev->fence_lock);
 
 	if (fence) {
@@ -399,49 +448,41 @@ validate_sync(struct nouveau_channel *chan, struct nouveau_bo *nvbo)
 }
 
 static int
-validate_list(struct nouveau_channel *chan, struct list_head *list,
-	      struct drm_nouveau_gem_pushbuf_bo *pbbo, uint64_t user_pbbo_ptr)
+validate_list(struct nouveau_channel *chan, struct nouveau_cli *cli,
+	      struct list_head *list, struct drm_nouveau_gem_pushbuf_bo *pbbo,
+	      uint64_t user_pbbo_ptr)
 {
-	struct drm_nouveau_private *dev_priv = chan->dev->dev_private;
+	struct nouveau_drm *drm = chan->drm;
 	struct drm_nouveau_gem_pushbuf_bo __user *upbbo =
 				(void __force __user *)(uintptr_t)user_pbbo_ptr;
-	struct drm_device *dev = chan->dev;
 	struct nouveau_bo *nvbo;
 	int ret, relocs = 0;
 
 	list_for_each_entry(nvbo, list, entry) {
 		struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[nvbo->pbbo_index];
 
-		ret = validate_sync(chan, nvbo);
-		if (unlikely(ret)) {
-			NV_ERROR(dev, "fail pre-validate sync\n");
-			return ret;
-		}
-
-		ret = nouveau_gem_set_domain(nvbo->gem, b->read_domains,
+		ret = nouveau_gem_set_domain(&nvbo->gem, b->read_domains,
 					     b->write_domains,
 					     b->valid_domains);
 		if (unlikely(ret)) {
-			NV_ERROR(dev, "fail set_domain\n");
+			NV_ERROR(cli, "fail set_domain\n");
 			return ret;
 		}
 
-		nvbo->channel = (b->read_domains & (1 << 31)) ? NULL : chan;
-		ret = nouveau_bo_validate(nvbo, true, false, false);
-		nvbo->channel = NULL;
+		ret = nouveau_bo_validate(nvbo, true, false);
 		if (unlikely(ret)) {
 			if (ret != -ERESTARTSYS)
-				NV_ERROR(dev, "fail ttm_validate\n");
+				NV_ERROR(cli, "fail ttm_validate\n");
 			return ret;
 		}
 
 		ret = validate_sync(chan, nvbo);
 		if (unlikely(ret)) {
-			NV_ERROR(dev, "fail post-validate sync\n");
+			NV_ERROR(cli, "fail post-validate sync\n");
 			return ret;
 		}
 
-		if (dev_priv->card_type < NV_50) {
+		if (nv_device(drm->device)->card_type < NV_50) {
 			if (nvbo->bo.offset == b->presumed.offset &&
 			    ((nvbo->bo.mem.mem_type == TTM_PL_VRAM &&
 			      b->presumed.domain & NOUVEAU_GEM_DOMAIN_VRAM) ||
@@ -457,7 +498,7 @@ validate_list(struct nouveau_channel *chan, struct list_head *list,
 			b->presumed.valid = 0;
 			relocs++;
 
-			if (DRM_COPY_TO_USER(&upbbo[nvbo->pbbo_index].presumed,
+			if (copy_to_user(&upbbo[nvbo->pbbo_index].presumed,
 					     &b->presumed, sizeof(b->presumed)))
 				return -EFAULT;
 		}
@@ -473,7 +514,7 @@ nouveau_gem_pushbuf_validate(struct nouveau_channel *chan,
 			     uint64_t user_buffers, int nr_buffers,
 			     struct validate_op *op, int *apply_relocs)
 {
-	struct drm_device *dev = chan->dev;
+	struct nouveau_cli *cli = nouveau_cli(file_priv);
 	int ret, relocs = 0;
 
 	INIT_LIST_HEAD(&op->vram_list);
@@ -486,32 +527,32 @@ nouveau_gem_pushbuf_validate(struct nouveau_channel *chan,
 	ret = validate_init(chan, file_priv, pbbo, nr_buffers, op);
 	if (unlikely(ret)) {
 		if (ret != -ERESTARTSYS)
-			NV_ERROR(dev, "validate_init\n");
+			NV_ERROR(cli, "validate_init\n");
 		return ret;
 	}
 
-	ret = validate_list(chan, &op->vram_list, pbbo, user_buffers);
+	ret = validate_list(chan, cli, &op->vram_list, pbbo, user_buffers);
 	if (unlikely(ret < 0)) {
 		if (ret != -ERESTARTSYS)
-			NV_ERROR(dev, "validate vram_list\n");
+			NV_ERROR(cli, "validate vram_list\n");
 		validate_fini(op, NULL);
 		return ret;
 	}
 	relocs += ret;
 
-	ret = validate_list(chan, &op->gart_list, pbbo, user_buffers);
+	ret = validate_list(chan, cli, &op->gart_list, pbbo, user_buffers);
 	if (unlikely(ret < 0)) {
 		if (ret != -ERESTARTSYS)
-			NV_ERROR(dev, "validate gart_list\n");
+			NV_ERROR(cli, "validate gart_list\n");
 		validate_fini(op, NULL);
 		return ret;
 	}
 	relocs += ret;
 
-	ret = validate_list(chan, &op->both_list, pbbo, user_buffers);
+	ret = validate_list(chan, cli, &op->both_list, pbbo, user_buffers);
 	if (unlikely(ret < 0)) {
 		if (ret != -ERESTARTSYS)
-			NV_ERROR(dev, "validate both_list\n");
+			NV_ERROR(cli, "validate both_list\n");
 		validate_fini(op, NULL);
 		return ret;
 	}
@@ -521,18 +562,31 @@ nouveau_gem_pushbuf_validate(struct nouveau_channel *chan,
 	return 0;
 }
 
+static inline void
+u_free(void *addr)
+{
+	if (!is_vmalloc_addr(addr))
+		kfree(addr);
+	else
+		vfree(addr);
+}
+
 static inline void *
 u_memcpya(uint64_t user, unsigned nmemb, unsigned size)
 {
 	void *mem;
 	void __user *userptr = (void __force __user *)(uintptr_t)user;
 
-	mem = kmalloc(nmemb * size, GFP_KERNEL);
+	size *= nmemb;
+
+	mem = kmalloc(size, GFP_KERNEL | __GFP_NOWARN);
+	if (!mem)
+		mem = vmalloc(size);
 	if (!mem)
 		return ERR_PTR(-ENOMEM);
 
-	if (DRM_COPY_FROM_USER(mem, userptr, nmemb * size)) {
-		kfree(mem);
+	if (copy_from_user(mem, userptr, size)) {
+		u_free(mem);
 		return ERR_PTR(-EFAULT);
 	}
 
@@ -540,7 +594,7 @@ u_memcpya(uint64_t user, unsigned nmemb, unsigned size)
 }
 
 static int
-nouveau_gem_pushbuf_reloc_apply(struct drm_device *dev,
+nouveau_gem_pushbuf_reloc_apply(struct nouveau_cli *cli,
 				struct drm_nouveau_gem_pushbuf *req,
 				struct drm_nouveau_gem_pushbuf_bo *bo)
 {
@@ -559,7 +613,7 @@ nouveau_gem_pushbuf_reloc_apply(struct drm_device *dev,
 		uint32_t data;
 
 		if (unlikely(r->bo_index > req->nr_buffers)) {
-			NV_ERROR(dev, "reloc bo index invalid\n");
+			NV_ERROR(cli, "reloc bo index invalid\n");
 			ret = -EINVAL;
 			break;
 		}
@@ -569,7 +623,7 @@ nouveau_gem_pushbuf_reloc_apply(struct drm_device *dev,
 			continue;
 
 		if (unlikely(r->reloc_bo_index > req->nr_buffers)) {
-			NV_ERROR(dev, "reloc container bo index invalid\n");
+			NV_ERROR(cli, "reloc container bo index invalid\n");
 			ret = -EINVAL;
 			break;
 		}
@@ -577,7 +631,7 @@ nouveau_gem_pushbuf_reloc_apply(struct drm_device *dev,
 
 		if (unlikely(r->reloc_bo_offset + 4 >
 			     nvbo->bo.mem.num_pages << PAGE_SHIFT)) {
-			NV_ERROR(dev, "reloc outside of bo\n");
+			NV_ERROR(cli, "reloc outside of bo\n");
 			ret = -EINVAL;
 			break;
 		}
@@ -586,7 +640,7 @@ nouveau_gem_pushbuf_reloc_apply(struct drm_device *dev,
 			ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.mem.num_pages,
 					  &nvbo->kmap);
 			if (ret) {
-				NV_ERROR(dev, "failed kmap for reloc\n");
+				NV_ERROR(cli, "failed kmap for reloc\n");
 				break;
 			}
 			nvbo->validate_mapped = true;
@@ -611,14 +665,14 @@ nouveau_gem_pushbuf_reloc_apply(struct drm_device *dev,
 		ret = ttm_bo_wait(&nvbo->bo, false, false, false);
 		spin_unlock(&nvbo->bo.bdev->fence_lock);
 		if (ret) {
-			NV_ERROR(dev, "reloc wait_idle failed: %d\n", ret);
+			NV_ERROR(cli, "reloc wait_idle failed: %d\n", ret);
 			break;
 		}
 
 		nouveau_bo_wr32(nvbo, r->reloc_bo_offset >> 2, data);
 	}
 
-	kfree(reloc);
+	u_free(reloc);
 	return ret;
 }
 
@@ -626,71 +680,71 @@ int
 nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
 			  struct drm_file *file_priv)
 {
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
+	struct nouveau_cli *cli = nouveau_cli(file_priv);
+	struct nouveau_abi16_chan *temp;
+	struct nouveau_drm *drm = nouveau_drm(dev);
 	struct drm_nouveau_gem_pushbuf *req = data;
 	struct drm_nouveau_gem_pushbuf_push *push;
 	struct drm_nouveau_gem_pushbuf_bo *bo;
-	struct nouveau_channel *chan;
+	struct nouveau_channel *chan = NULL;
 	struct validate_op op;
 	struct nouveau_fence *fence = NULL;
 	int i, j, ret = 0, do_reloc = 0;
 
-	chan = nouveau_channel_get(file_priv, req->channel);
-	if (IS_ERR(chan))
-		return PTR_ERR(chan);
+	if (unlikely(!abi16))
+		return -ENOMEM;
+
+	list_for_each_entry(temp, &abi16->channels, head) {
+		if (temp->chan->handle == (NVDRM_CHAN | req->channel)) {
+			chan = temp->chan;
+			break;
+		}
+	}
+
+	if (!chan)
+		return nouveau_abi16_put(abi16, -ENOENT);
 
-	req->vram_available = dev_priv->fb_aper_free;
-	req->gart_available = dev_priv->gart_info.aper_free;
+	req->vram_available = drm->gem.vram_available;
+	req->gart_available = drm->gem.gart_available;
 	if (unlikely(req->nr_push == 0))
 		goto out_next;
 
 	if (unlikely(req->nr_push > NOUVEAU_GEM_MAX_PUSH)) {
-		NV_ERROR(dev, "pushbuf push count exceeds limit: %d max %d\n",
+		NV_ERROR(cli, "pushbuf push count exceeds limit: %d max %d\n",
 			 req->nr_push, NOUVEAU_GEM_MAX_PUSH);
-		nouveau_channel_put(&chan);
-		return -EINVAL;
+		return nouveau_abi16_put(abi16, -EINVAL);
 	}
 
 	if (unlikely(req->nr_buffers > NOUVEAU_GEM_MAX_BUFFERS)) {
-		NV_ERROR(dev, "pushbuf bo count exceeds limit: %d max %d\n",
+		NV_ERROR(cli, "pushbuf bo count exceeds limit: %d max %d\n",
 			 req->nr_buffers, NOUVEAU_GEM_MAX_BUFFERS);
-		nouveau_channel_put(&chan);
-		return -EINVAL;
+		return nouveau_abi16_put(abi16, -EINVAL);
 	}
 
 	if (unlikely(req->nr_relocs > NOUVEAU_GEM_MAX_RELOCS)) {
-		NV_ERROR(dev, "pushbuf reloc count exceeds limit: %d max %d\n",
+		NV_ERROR(cli, "pushbuf reloc count exceeds limit: %d max %d\n",
 			 req->nr_relocs, NOUVEAU_GEM_MAX_RELOCS);
-		nouveau_channel_put(&chan);
-		return -EINVAL;
+		return nouveau_abi16_put(abi16, -EINVAL);
 	}
 
 	push = u_memcpya(req->push, req->nr_push, sizeof(*push));
-	if (IS_ERR(push)) {
-		nouveau_channel_put(&chan);
-		return PTR_ERR(push);
-	}
+	if (IS_ERR(push))
+		return nouveau_abi16_put(abi16, PTR_ERR(push));
 
 	bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo));
 	if (IS_ERR(bo)) {
-		kfree(push);
-		nouveau_channel_put(&chan);
-		return PTR_ERR(bo);
+		u_free(push);
+		return nouveau_abi16_put(abi16, PTR_ERR(bo));
 	}
 
-	/* 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.
-	 */
+	/* Ensure all push buffers are on validate list */
 	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);
+			NV_ERROR(cli, "push %d buffer not in list\n", i);
 			ret = -EINVAL;
 			goto out_prevalid;
 		}
-
-		bo[push[i].bo_index].read_domains |= (1 << 31);
 	}
 
 	/* Validate buffer list */
@@ -698,23 +752,23 @@ nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
 					   req->nr_buffers, &op, &do_reloc);
 	if (ret) {
 		if (ret != -ERESTARTSYS)
-			NV_ERROR(dev, "validate: %d\n", ret);
+			NV_ERROR(cli, "validate: %d\n", ret);
 		goto out_prevalid;
 	}
 
 	/* Apply any relocations that are required */
 	if (do_reloc) {
-		ret = nouveau_gem_pushbuf_reloc_apply(dev, req, bo);
+		ret = nouveau_gem_pushbuf_reloc_apply(cli, req, bo);
 		if (ret) {
-			NV_ERROR(dev, "reloc apply: %d\n", ret);
+			NV_ERROR(cli, "reloc apply: %d\n", ret);
 			goto out;
 		}
 	}
 
 	if (chan->dma.ib_max) {
-		ret = nouveau_dma_wait(chan, req->nr_push + 1, 6);
+		ret = nouveau_dma_wait(chan, req->nr_push + 1, 16);
 		if (ret) {
-			NV_INFO(dev, "nv50cal_space: %d\n", ret);
+			NV_ERROR(cli, "nv50cal_space: %d\n", ret);
 			goto out;
 		}
 
@@ -726,36 +780,33 @@ nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
 				      push[i].length);
 		}
 	} else
-	if (dev_priv->chipset >= 0x25) {
+	if (nv_device(drm->device)->chipset >= 0x25) {
 		ret = RING_SPACE(chan, req->nr_push * 2);
 		if (ret) {
-			NV_ERROR(dev, "cal_space: %d\n", ret);
+			NV_ERROR(cli, "cal_space: %d\n", ret);
 			goto out;
 		}
 
 		for (i = 0; i < req->nr_push; i++) {
 			struct nouveau_bo *nvbo = (void *)(unsigned long)
 				bo[push[i].bo_index].user_priv;
-			struct drm_mm_node *mem = nvbo->bo.mem.mm_node;
 
-			OUT_RING(chan, ((mem->start << PAGE_SHIFT) +
-					push[i].offset) | 2);
+			OUT_RING(chan, (nvbo->bo.offset + push[i].offset) | 2);
 			OUT_RING(chan, 0);
 		}
 	} else {
 		ret = RING_SPACE(chan, req->nr_push * (2 + NOUVEAU_DMA_SKIPS));
 		if (ret) {
-			NV_ERROR(dev, "jmp_space: %d\n", ret);
+			NV_ERROR(cli, "jmp_space: %d\n", ret);
 			goto out;
 		}
 
 		for (i = 0; i < req->nr_push; i++) {
 			struct nouveau_bo *nvbo = (void *)(unsigned long)
 				bo[push[i].bo_index].user_priv;
-			struct drm_mm_node *mem = nvbo->bo.mem.mm_node;
 			uint32_t cmd;
 
-			cmd = chan->pushbuf_base + ((chan->dma.cur + 2) << 2);
+			cmd = chan->push.vma.offset + ((chan->dma.cur + 2) << 2);
 			cmd |= 0x20000000;
 			if (unlikely(cmd != req->suffix0)) {
 				if (!nvbo->kmap.virtual) {
@@ -774,17 +825,17 @@ nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
 						push[i].length - 8) / 4, cmd);
 			}
 
-			OUT_RING(chan, ((mem->start << PAGE_SHIFT) +
-					push[i].offset) | 0x20000000);
+			OUT_RING(chan, 0x20000000 |
+				      (nvbo->bo.offset + push[i].offset));
 			OUT_RING(chan, 0);
 			for (j = 0; j < NOUVEAU_DMA_SKIPS; j++)
 				OUT_RING(chan, 0);
 		}
 	}
 
-	ret = nouveau_fence_new(chan, &fence, true);
+	ret = nouveau_fence_new(chan, false, &fence);
 	if (ret) {
-		NV_ERROR(dev, "error fencing pushbuf: %d\n", ret);
+		NV_ERROR(cli, "error fencing pushbuf: %d\n", ret);
 		WIND_RING(chan);
 		goto out;
 	}
@@ -794,25 +845,24 @@ out:
 	nouveau_fence_unref(&fence);
 
 out_prevalid:
-	kfree(bo);
-	kfree(push);
+	u_free(bo);
+	u_free(push);
 
 out_next:
 	if (chan->dma.ib_max) {
 		req->suffix0 = 0x00000000;
 		req->suffix1 = 0x00000000;
 	} else
-	if (dev_priv->chipset >= 0x25) {
+	if (nv_device(drm->device)->chipset >= 0x25) {
 		req->suffix0 = 0x00020000;
 		req->suffix1 = 0x00000000;
 	} else {
 		req->suffix0 = 0x20000000 |
-			      (chan->pushbuf_base + ((chan->dma.cur + 2) << 2));
+			      (chan->push.vma.offset + ((chan->dma.cur + 2) << 2));
 		req->suffix1 = 0x00000000;
 	}
 
-	nouveau_channel_put(&chan);
-	return ret;
+	return nouveau_abi16_put(abi16, ret);
 }
 
 static inline uint32_t