1 /*
2  * Copyright © 2014 Intel Corporation
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice (including the next
12  * paragraph) shall be included in all copies or substantial portions of the
13  * Software.
14  *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21  * DEALINGS IN THE SOFTWARE.
22  */
23 
24 #ifndef _INTEL_RENDERSTATE_H_
25 #define _INTEL_RENDERSTATE_H_
26 
27 #include <linux/types.h>
28 
29 struct i915_request;
30 struct intel_engine_cs;
31 struct i915_vma;
32 
33 struct intel_renderstate_rodata {
34 	const u32 *reloc;
35 	const u32 *batch;
36 	const u32 batch_items;
37 };
38 
39 #define RO_RENDERSTATE(_g)						\
40 	const struct intel_renderstate_rodata gen ## _g ## _null_state = { \
41 		.reloc = gen ## _g ## _null_state_relocs,		\
42 		.batch = gen ## _g ## _null_state_batch,		\
43 		.batch_items = sizeof(gen ## _g ## _null_state_batch)/4, \
44 	}
45 
46 extern const struct intel_renderstate_rodata gen6_null_state;
47 extern const struct intel_renderstate_rodata gen7_null_state;
48 extern const struct intel_renderstate_rodata gen8_null_state;
49 extern const struct intel_renderstate_rodata gen9_null_state;
50 
51 struct intel_renderstate {
52 	const struct intel_renderstate_rodata *rodata;
53 	struct i915_vma *vma;
54 	u32 batch_offset;
55 	u32 batch_size;
56 	u32 aux_offset;
57 	u32 aux_size;
58 };
59 
60 int intel_renderstate_init(struct intel_renderstate *so,
61 			   struct intel_engine_cs *engine);
62 int intel_renderstate_emit(struct intel_renderstate *so,
63 			   struct i915_request *rq);
64 void intel_renderstate_fini(struct intel_renderstate *so);
65 
66 #endif /* _INTEL_RENDERSTATE_H_ */
67