drm/armada/armada_gem.c

43 	struct armada_gem_object *dobj = drm_to_armada_gem(obj);
46 	DRM_DEBUG_DRIVER("release obj %p\n", dobj);
48 	drm_gem_free_mmap_offset(&dobj->obj);
52 	if (dobj->page) {
54 		unsigned int order = get_order(dobj->obj.size);
55 		__free_pages(dobj->page, order);
56 	} else if (dobj->linear) {
59 		drm_mm_remove_node(dobj->linear);
61 		kfree(dobj->linear);
62 		if (dobj->addr)
63 			iounmap(dobj->addr);
66 	if (dobj->obj.import_attach) {
68 		if (dobj->sgt)
69 			dma_buf_unmap_attachment_unlocked(dobj->obj.import_attach,
70 							  dobj->sgt, DMA_TO_DEVICE);
71 		drm_prime_gem_destroy(&dobj->obj, NULL);
74 	drm_gem_object_release(&dobj->obj);
76 	kfree(dobj);
181 armada_gem_map_object(struct drm_device *dev, struct armada_gem_object *dobj)
184 	if (!dobj->addr && dobj->linear)
185 		dobj->addr = ioremap_wc(dobj->phys_addr, dobj->obj.size);
186 	return dobj->addr;
246 	struct armada_gem_object *dobj;
254 	dobj = armada_gem_alloc_private_object(dev, size);
255 	if (dobj == NULL)
258 	ret = armada_gem_linear_back(dev, dobj);
262 	ret = drm_gem_handle_create(file, &dobj->obj, &handle);
269 	DRM_DEBUG_DRIVER("obj %p size %zu handle %#x\n", dobj, size, handle);
271 	drm_gem_object_put(&dobj->obj);
280 	struct armada_gem_object *dobj;
290 	dobj = armada_gem_alloc_object(dev, size);
291 	if (dobj == NULL)
294 	ret = drm_gem_handle_create(file, &dobj->obj, &handle);
301 	DRM_DEBUG_DRIVER("obj %p size %zu handle %#x\n", dobj, size, handle);
303 	drm_gem_object_put(&dobj->obj);
312 	struct armada_gem_object *dobj;
315 	dobj = armada_gem_object_lookup(file, args->handle);
316 	if (dobj == NULL)
319 	if (!dobj->obj.filp) {
320 		drm_gem_object_put(&dobj->obj);
324 	addr = vm_mmap(dobj->obj.filp, 0, args->size, PROT_READ | PROT_WRITE,
326 	drm_gem_object_put(&dobj->obj);
339 	struct armada_gem_object *dobj;
357 	dobj = armada_gem_object_lookup(file, args->handle);
358 	if (dobj == NULL)
362 	if (!dobj->addr)
365 	if (args->offset > dobj->obj.size ||
366 	    args->size > dobj->obj.size - args->offset) {
367 		DRM_ERROR("invalid size: object size %u\n", dobj->obj.size);
372 	if (copy_from_user(dobj->addr + args->offset, ptr, args->size)) {
374 	} else if (dobj->update) {
375 		dobj->update(dobj->update_data);
380 	drm_gem_object_put(&dobj->obj);
390 	struct armada_gem_object *dobj = drm_to_armada_gem(obj);
399 	if (dobj->obj.filp) {
403 		count = dobj->obj.size / PAGE_SIZE;
407 		mapping = dobj->obj.filp->f_mapping;
421 	} else if (dobj->page) {
426 		sg_set_page(sgt->sgl, dobj->page, dobj->obj.size, 0);
430 	} else if (dobj->linear) {
434 		sg_dma_address(sgt->sgl) = dobj->dev_addr;
435 		sg_dma_len(sgt->sgl) = dobj->obj.size;
456 	struct armada_gem_object *dobj = drm_to_armada_gem(obj);
459 	if (!dobj->linear)
462 	if (dobj->obj.filp) {
503 	struct armada_gem_object *dobj;
521 	dobj = armada_gem_alloc_private_object(dev, buf->size);
522 	if (!dobj) {
527 	dobj->obj.import_attach = attach;
535 	return &dobj->obj;
538 int armada_gem_map_import(struct armada_gem_object *dobj)
542 	dobj->sgt = dma_buf_map_attachment_unlocked(dobj->obj.import_attach,
544 	if (IS_ERR(dobj->sgt)) {
545 		ret = PTR_ERR(dobj->sgt);
546 		dobj->sgt = NULL;
550 	if (dobj->sgt->nents > 1) {
554 	if (sg_dma_len(dobj->sgt->sgl) < dobj->obj.size) {
558 	dobj->dev_addr = sg_dma_address(dobj->sgt->sgl);
559 	dobj->mapped = true;