drm/ttm: turn ttm_bo_device.vma_manager into a pointer

Rename the embedded struct vma_offset_manager, new name is _vma_manager.
ttm_bo_device.vma_manager changed to a pointer.

The ttm_bo_device_init() function gets an additional vma_manager
argument which allows to initialize ttm with a different vma manager.
When passing NULL the embedded _vma_manager is used.

All callers are updated to pass NULL, so the behavior doesn't change.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20190905070509.22407-2-kraxel@redhat.com

8 files changed, 18 insertions, 7 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index fb09314bcfd4..34ee5d725faf 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -1728,6 +1728,7 @@ int amdgpu_ttm_init(struct amdgpu_device *adev)
 	r = ttm_bo_device_init(&adev->mman.bdev,
 			       &amdgpu_bo_driver,
 			       adev->ddev->anon_inode->i_mapping,
+			       NULL,
 			       adev->need_dma32);
 	if (r) {
 		DRM_ERROR("failed initializing buffer object driver(%d).\n", r);
diff --git a/drivers/gpu/drm/drm_vram_mm_helper.c b/drivers/gpu/drm/drm_vram_mm_helper.c
index 00fd8a691fa9..095049aff1c9 100644
--- a/drivers/gpu/drm/drm_vram_mm_helper.c
+++ b/drivers/gpu/drm/drm_vram_mm_helper.c
@@ -228,6 +228,7 @@ int drm_vram_mm_init(struct drm_vram_mm *vmm, struct drm_device *dev,
 
 	ret = ttm_bo_device_init(&vmm->bdev, &bo_driver,
 				 dev->anon_inode->i_mapping,
+				 NULL,
 				 true);
 	if (ret)
 		return ret;
diff --git a/drivers/gpu/drm/nouveau/nouveau_ttm.c b/drivers/gpu/drm/nouveau/nouveau_ttm.c
index f0daf958e03a..e67eb10843d1 100644
--- a/drivers/gpu/drm/nouveau/nouveau_ttm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_ttm.c
@@ -236,6 +236,7 @@ nouveau_ttm_init(struct nouveau_drm *drm)
 	ret = ttm_bo_device_init(&drm->ttm.bdev,
 				  &nouveau_bo_driver,
 				  dev->anon_inode->i_mapping,
+				 NULL,
 				  drm->client.mmu.dmabits <= 32 ? true : false);
 	if (ret) {
 		NV_ERROR(drm, "error initialising bo driver, %d\n", ret);
diff --git a/drivers/gpu/drm/qxl/qxl_ttm.c b/drivers/gpu/drm/qxl/qxl_ttm.c
index 9b24514c75aa..69da0eea6e4c 100644
--- a/drivers/gpu/drm/qxl/qxl_ttm.c
+++ b/drivers/gpu/drm/qxl/qxl_ttm.c
@@ -325,6 +325,7 @@ int qxl_ttm_init(struct qxl_device *qdev)
 	r = ttm_bo_device_init(&qdev->mman.bdev,
 			       &qxl_bo_driver,
 			       qdev->ddev.anon_inode->i_mapping,
+			       NULL,
 			       false);
 	if (r) {
 		DRM_ERROR("failed initializing buffer object driver(%d).\n", r);
diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index 35ac75a11d38..e2c12e59704d 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -794,6 +794,7 @@ int radeon_ttm_init(struct radeon_device *rdev)
 	r = ttm_bo_device_init(&rdev->mman.bdev,
 			       &radeon_bo_driver,
 			       rdev->ddev->anon_inode->i_mapping,
+			       NULL,
 			       rdev->need_dma32);
 	if (r) {
 		DRM_ERROR("failed initializing buffer object driver(%d).\n", r);
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 58d1f2b28132..8dc26babc5cb 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -672,7 +672,7 @@ static void ttm_bo_release(struct kref *kref)
 	struct ttm_bo_device *bdev = bo->bdev;
 	struct ttm_mem_type_manager *man = &bdev->man[bo->mem.mem_type];
 
-	drm_vma_offset_remove(&bdev->vma_manager, &bo->base.vma_node);
+	drm_vma_offset_remove(bdev->vma_manager, &bo->base.vma_node);
 	ttm_mem_io_lock(man, false);
 	ttm_mem_io_free_vm(bo);
 	ttm_mem_io_unlock(man);
@@ -1353,7 +1353,7 @@ int ttm_bo_init_reserved(struct ttm_bo_device *bdev,
 	 */
 	if (bo->type == ttm_bo_type_device ||
 	    bo->type == ttm_bo_type_sg)
-		ret = drm_vma_offset_add(&bdev->vma_manager, &bo->base.vma_node,
+		ret = drm_vma_offset_add(bdev->vma_manager, &bo->base.vma_node,
 					 bo->mem.num_pages);
 
 	/* passed reservation objects should already be locked,
@@ -1704,7 +1704,7 @@ int ttm_bo_device_release(struct ttm_bo_device *bdev)
 			pr_debug("Swap list %d was clean\n", i);
 	spin_unlock(&glob->lru_lock);
 
-	drm_vma_offset_manager_destroy(&bdev->vma_manager);
+	drm_vma_offset_manager_destroy(&bdev->_vma_manager);
 
 	if (!ret)
 		ttm_bo_global_release();
@@ -1716,11 +1716,15 @@ EXPORT_SYMBOL(ttm_bo_device_release);
 int ttm_bo_device_init(struct ttm_bo_device *bdev,
 		       struct ttm_bo_driver *driver,
 		       struct address_space *mapping,
+		       struct drm_vma_offset_manager *vma_manager,
 		       bool need_dma32)
 {
 	struct ttm_bo_global *glob = &ttm_bo_glob;
 	int ret;
 
+	if (!vma_manager)
+		vma_manager = &bdev->_vma_manager;
+
 	ret = ttm_bo_global_init();
 	if (ret)
 		return ret;
@@ -1737,7 +1741,8 @@ int ttm_bo_device_init(struct ttm_bo_device *bdev,
 	if (unlikely(ret != 0))
 		goto out_no_sys;
 
-	drm_vma_offset_manager_init(&bdev->vma_manager,
+	bdev->vma_manager = vma_manager;
+	drm_vma_offset_manager_init(&bdev->_vma_manager,
 				    DRM_FILE_PAGE_OFFSET_START,
 				    DRM_FILE_PAGE_OFFSET_SIZE);
 	INIT_DELAYED_WORK(&bdev->wq, ttm_bo_delayed_workqueue);
diff --git a/drivers/gpu/drm/ttm/ttm_bo_vm.c b/drivers/gpu/drm/ttm/ttm_bo_vm.c
index 76eedb963693..4aa007edffb0 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_vm.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_vm.c
@@ -409,16 +409,16 @@ static struct ttm_buffer_object *ttm_bo_vm_lookup(struct ttm_bo_device *bdev,
 	struct drm_vma_offset_node *node;
 	struct ttm_buffer_object *bo = NULL;
 
-	drm_vma_offset_lock_lookup(&bdev->vma_manager);
+	drm_vma_offset_lock_lookup(bdev->vma_manager);
 
-	node = drm_vma_offset_lookup_locked(&bdev->vma_manager, offset, pages);
+	node = drm_vma_offset_lookup_locked(bdev->vma_manager, offset, pages);
 	if (likely(node)) {
 		bo = container_of(node, struct ttm_buffer_object,
 				  base.vma_node);
 		bo = ttm_bo_get_unless_zero(bo);
 	}
 
-	drm_vma_offset_unlock_lookup(&bdev->vma_manager);
+	drm_vma_offset_unlock_lookup(bdev->vma_manager);
 
 	if (!bo)
 		pr_err("Could not find buffer object to map\n");
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index cd0d49d8a8da..20bc91214e75 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -830,6 +830,7 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
 	ret = ttm_bo_device_init(&dev_priv->bdev,
 				 &vmw_bo_driver,
 				 dev->anon_inode->i_mapping,
+				 NULL,
 				 false);
 	if (unlikely(ret != 0)) {
 		DRM_ERROR("Failed initializing TTM buffer object driver.\n");