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#ifdef CONFIG_DRM_RADEON_UMS

/**

 * cs_parser_fini() - clean parser states

 * @parser:	parser structure holding parsing context.

 * @error:	error number

 *

 * If error is set than unvalidate buffer, otherwise just free memory

 * used by parsing context.

 **/

static void r600_cs_parser_fini(struct radeon_cs_parser *parser, int error)

{

	unsigned i;

	kfree(parser->relocs);

	for (i = 0; i < parser->nchunks; i++)

		drm_free_large(parser->chunks[i].kdata);

	kfree(parser->chunks);

	kfree(parser->chunks_array);

}

static int r600_cs_parser_relocs_legacy(struct radeon_cs_parser *p)

{

	if (p->chunk_relocs == NULL) {

		return 0;

	}

	p->relocs = kzalloc(sizeof(struct radeon_bo_list), GFP_KERNEL);

	if (p->relocs == NULL) {

		return -ENOMEM;

	}

	return 0;

}

int r600_cs_legacy(struct drm_device *dev, void *data, struct drm_file *filp,

			unsigned family, u32 *ib, int *l)

{

	struct radeon_cs_parser parser;

	struct radeon_cs_chunk *ib_chunk;

	struct r600_cs_track *track;

	int r;

	/* initialize tracker */

	track = kzalloc(sizeof(*track), GFP_KERNEL);

	if (track == NULL)

		return -ENOMEM;

	r600_cs_track_init(track);

	r600_cs_legacy_get_tiling_conf(dev, &track->npipes, &track->nbanks, &track->group_size);

	/* initialize parser */

	memset(&parser, 0, sizeof(struct radeon_cs_parser));

	parser.filp = filp;

	parser.dev = &dev->pdev->dev;

	parser.rdev = NULL;

	parser.family = family;

	parser.track = track;

	parser.ib.ptr = ib;

	r = radeon_cs_parser_init(&parser, data);

	if (r) {

		DRM_ERROR("Failed to initialize parser !\n");

		r600_cs_parser_fini(&parser, r);

		return r;

	}

	r = r600_cs_parser_relocs_legacy(&parser);

	if (r) {

		DRM_ERROR("Failed to parse relocation !\n");

		r600_cs_parser_fini(&parser, r);

		return r;

	}

	/* Copy the packet into the IB, the parser will read from the

	 * input memory (cached) and write to the IB (which can be

	 * uncached). */

	ib_chunk = parser.chunk_ib;

	parser.ib.length_dw = ib_chunk->length_dw;

	*l = parser.ib.length_dw;

	if (copy_from_user(ib, ib_chunk->user_ptr, ib_chunk->length_dw * 4)) {

		r = -EFAULT;

		r600_cs_parser_fini(&parser, r);

		return r;

	}

	r = r600_cs_parse(&parser);

	if (r) {

		DRM_ERROR("Invalid command stream !\n");

		r600_cs_parser_fini(&parser, r);

		return r;

	}

	r600_cs_parser_fini(&parser, r);

	return r;

}

void r600_cs_legacy_init(void)

{

	r600_nomm = 1;

}

#endif