1 files changed, 7 insertions, 117 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c
index 37ec59365080..ae6ab93c868b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c
@@ -43,94 +43,6 @@
 #include <linux/pm_runtime.h>
 
 /**
- * amdgpu_gem_prime_mmap - &drm_driver.gem_prime_mmap implementation
- * @obj: GEM BO
- * @vma: Virtual memory area
- *
- * Sets up a userspace mapping of the BO's memory in the given
- * virtual memory area.
- *
- * Returns:
- * 0 on success or a negative error code on failure.
- */
-int amdgpu_gem_prime_mmap(struct drm_gem_object *obj,
-			  struct vm_area_struct *vma)
-{
-	struct amdgpu_bo *bo = gem_to_amdgpu_bo(obj);
-	struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
-	unsigned asize = amdgpu_bo_size(bo);
-	int ret;
-
-	if (!vma->vm_file)
-		return -ENODEV;
-
-	if (adev == NULL)
-		return -ENODEV;
-
-	/* Check for valid size. */
-	if (asize < vma->vm_end - vma->vm_start)
-		return -EINVAL;
-
-	if (amdgpu_ttm_tt_get_usermm(bo->tbo.ttm) ||
-	    (bo->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS)) {
-		return -EPERM;
-	}
-	vma->vm_pgoff += amdgpu_bo_mmap_offset(bo) >> PAGE_SHIFT;
-
-	/* prime mmap does not need to check access, so allow here */
-	ret = drm_vma_node_allow(&obj->vma_node, vma->vm_file->private_data);
-	if (ret)
-		return ret;
-
-	ret = ttm_bo_mmap(vma->vm_file, vma, &adev->mman.bdev);
-	drm_vma_node_revoke(&obj->vma_node, vma->vm_file->private_data);
-
-	return ret;
-}
-
-static int
-__dma_resv_make_exclusive(struct dma_resv *obj)
-{
-	struct dma_fence **fences;
-	unsigned int count;
-	int r;
-
-	if (!dma_resv_get_list(obj)) /* no shared fences to convert */
-		return 0;
-
-	r = dma_resv_get_fences_rcu(obj, NULL, &count, &fences);
-	if (r)
-		return r;
-
-	if (count == 0) {
-		/* Now that was unexpected. */
-	} else if (count == 1) {
-		dma_resv_add_excl_fence(obj, fences[0]);
-		dma_fence_put(fences[0]);
-		kfree(fences);
-	} else {
-		struct dma_fence_array *array;
-
-		array = dma_fence_array_create(count, fences,
-					       dma_fence_context_alloc(1), 0,
-					       false);
-		if (!array)
-			goto err_fences_put;
-
-		dma_resv_add_excl_fence(obj, &array->base);
-		dma_fence_put(&array->base);
-	}
-
-	return 0;
-
-err_fences_put:
-	while (count--)
-		dma_fence_put(fences[count]);
-	kfree(fences);
-	return -ENOMEM;
-}
-
-/**
  * amdgpu_dma_buf_attach - &dma_buf_ops.attach implementation
  *
  * @dmabuf: DMA-buf where we attach to
@@ -156,24 +68,6 @@ static int amdgpu_dma_buf_attach(struct dma_buf *dmabuf,
 	if (r < 0)
 		goto out;
 
-	r = amdgpu_bo_reserve(bo, false);
-	if (unlikely(r != 0))
-		goto out;
-
-	/*
-	 * We only create shared fences for internal use, but importers
-	 * of the dmabuf rely on exclusive fences for implicitly
-	 * tracking write hazards. As any of the current fences may
-	 * correspond to a write, we need to convert all existing
-	 * fences on the reservation object into a single exclusive
-	 * fence.
-	 */
-	r = __dma_resv_make_exclusive(bo->tbo.base.resv);
-	if (r)
-		goto out;
-
-	bo->prime_shared_count++;
-	amdgpu_bo_unreserve(bo);
 	return 0;
 
 out:
@@ -196,9 +90,6 @@ static void amdgpu_dma_buf_detach(struct dma_buf *dmabuf,
 	struct amdgpu_bo *bo = gem_to_amdgpu_bo(obj);
 	struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
 
-	if (attach->dev->driver != adev->dev->driver && bo->prime_shared_count)
-		bo->prime_shared_count--;
-
 	pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
 	pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
 }
@@ -284,12 +175,12 @@ static struct sg_table *amdgpu_dma_buf_map(struct dma_buf_attachment *attach,
 		if (r)
 			return ERR_PTR(r);
 
-	} else if (!(amdgpu_mem_type_to_domain(bo->tbo.mem.mem_type) &
+	} else if (!(amdgpu_mem_type_to_domain(bo->tbo.resource->mem_type) &
 		     AMDGPU_GEM_DOMAIN_GTT)) {
 		return ERR_PTR(-EBUSY);
 	}
 
-	switch (bo->tbo.mem.mem_type) {
+	switch (bo->tbo.resource->mem_type) {
 	case TTM_PL_TT:
 		sgt = drm_prime_pages_to_sg(obj->dev,
 					    bo->tbo.ttm->pages,
@@ -303,8 +194,9 @@ static struct sg_table *amdgpu_dma_buf_map(struct dma_buf_attachment *attach,
 		break;
 
 	case TTM_PL_VRAM:
-		r = amdgpu_vram_mgr_alloc_sgt(adev, &bo->tbo.mem, 0,
-				bo->tbo.base.size, attach->dev, dir, &sgt);
+		r = amdgpu_vram_mgr_alloc_sgt(adev, bo->tbo.resource, 0,
+					      bo->tbo.base.size, attach->dev,
+					      dir, &sgt);
 		if (r)
 			return ERR_PTR(r);
 		break;
@@ -463,8 +355,6 @@ amdgpu_dma_buf_create_obj(struct drm_device *dev, struct dma_buf *dma_buf)
 	bo = gem_to_amdgpu_bo(gobj);
 	bo->allowed_domains = AMDGPU_GEM_DOMAIN_GTT;
 	bo->preferred_domains = AMDGPU_GEM_DOMAIN_GTT;
-	if (dma_buf->ops != &amdgpu_dmabuf_ops)
-		bo->prime_shared_count = 1;
 
 	dma_resv_unlock(resv);
 	return gobj;
@@ -494,7 +384,7 @@ amdgpu_dma_buf_move_notify(struct dma_buf_attachment *attach)
 	struct amdgpu_vm_bo_base *bo_base;
 	int r;
 
-	if (bo->tbo.mem.mem_type == TTM_PL_SYSTEM)
+	if (bo->tbo.resource->mem_type == TTM_PL_SYSTEM)
 		return;
 
 	r = ttm_bo_validate(&bo->tbo, &placement, &ctx);
@@ -505,7 +395,7 @@ amdgpu_dma_buf_move_notify(struct dma_buf_attachment *attach)
 
 	for (bo_base = bo->vm_bo; bo_base; bo_base = bo_base->next) {
 		struct amdgpu_vm *vm = bo_base->vm;
-		struct dma_resv *resv = vm->root.base.bo->tbo.base.resv;
+		struct dma_resv *resv = vm->root.bo->tbo.base.resv;
 
 		if (ticket) {
 			/* When we get an error here it means that somebody