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diff --git a/radeon/radeon_cs.h b/radeon/radeon_cs.h
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+/*
+ * Copyright © 2008 Nicolai Haehnle
+ * Copyright © 2008 Jérôme Glisse
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ */
+/*
+ * Authors:
+ * Aapo Tahkola <aet@rasterburn.org>
+ * Nicolai Haehnle <prefect_@gmx.net>
+ * Jérôme Glisse <glisse@freedesktop.org>
+ */
+#ifndef RADEON_CS_H
+#define RADEON_CS_H
+
+#include <stdint.h>
+#include <string.h>
+#include "drm.h"
+#include "radeon_drm.h"
+#include "radeon_bo.h"
+
+struct radeon_cs_reloc {
+ struct radeon_bo *bo;
+ uint32_t read_domain;
+ uint32_t write_domain;
+ uint32_t flags;
+};
+
+
+#define RADEON_CS_SPACE_OK 0
+#define RADEON_CS_SPACE_OP_TO_BIG 1
+#define RADEON_CS_SPACE_FLUSH 2
+
+struct radeon_cs {
+ uint32_t *packets;
+ unsigned cdw;
+ unsigned ndw;
+ unsigned section_ndw;
+ unsigned section_cdw;
+};
+
+#define MAX_SPACE_BOS (32)
+
+struct radeon_cs_manager;
+
+extern struct radeon_cs *radeon_cs_create(struct radeon_cs_manager *csm,
+ uint32_t ndw);
+
+extern int radeon_cs_begin(struct radeon_cs *cs,
+ uint32_t ndw,
+ const char *file,
+ const char *func, int line);
+extern int radeon_cs_end(struct radeon_cs *cs,
+ const char *file,
+ const char *func,
+ int line);
+extern int radeon_cs_emit(struct radeon_cs *cs);
+extern int radeon_cs_destroy(struct radeon_cs *cs);
+extern int radeon_cs_erase(struct radeon_cs *cs);
+extern int radeon_cs_need_flush(struct radeon_cs *cs);
+extern void radeon_cs_print(struct radeon_cs *cs, FILE *file);
+extern void radeon_cs_set_limit(struct radeon_cs *cs, uint32_t domain, uint32_t limit);
+extern void radeon_cs_space_set_flush(struct radeon_cs *cs, void (*fn)(void *), void *data);
+extern int radeon_cs_write_reloc(struct radeon_cs *cs,
+ struct radeon_bo *bo,
+ uint32_t read_domain,
+ uint32_t write_domain,
+ uint32_t flags);
+extern uint32_t radeon_cs_get_id(struct radeon_cs *cs);
+/*
+ * add a persistent BO to the list
+ * a persistent BO is one that will be referenced across flushes,
+ * i.e. colorbuffer, textures etc.
+ * They get reset when a new "operation" happens, where an operation
+ * is a state emission with a color/textures etc followed by a bunch of vertices.
+ */
+void radeon_cs_space_add_persistent_bo(struct radeon_cs *cs,
+ struct radeon_bo *bo,
+ uint32_t read_domains,
+ uint32_t write_domain);
+
+/* reset the persistent BO list */
+void radeon_cs_space_reset_bos(struct radeon_cs *cs);
+
+/* do a space check with the current persistent BO list */
+int radeon_cs_space_check(struct radeon_cs *cs);
+
+/* do a space check with the current persistent BO list and a temporary BO
+ * a temporary BO is like a DMA buffer, which gets flushed with the
+ * command buffer */
+int radeon_cs_space_check_with_bo(struct radeon_cs *cs,
+ struct radeon_bo *bo,
+ uint32_t read_domains,
+ uint32_t write_domain);
+
+static inline void radeon_cs_write_dword(struct radeon_cs *cs, uint32_t dword)
+{
+ cs->packets[cs->cdw++] = dword;
+ if (cs->section_ndw) {
+ cs->section_cdw++;
+ }
+}
+
+static inline void radeon_cs_write_qword(struct radeon_cs *cs, uint64_t qword)
+{
+ memcpy(cs->packets + cs->cdw, &qword, sizeof(uint64_t));
+ cs->cdw += 2;
+ if (cs->section_ndw) {
+ cs->section_cdw += 2;
+ }
+}
+
+static inline void radeon_cs_write_table(struct radeon_cs *cs,
+ const void *data, uint32_t size)
+{
+ memcpy(cs->packets + cs->cdw, data, size * 4);
+ cs->cdw += size;
+ if (cs->section_ndw) {
+ cs->section_cdw += size;
+ }
+}
+#endif