xref: /openbmc/linux/drivers/gpu/drm/amd/display/dc/inc/hw/dmcu.h (revision 2004f45e)
1 /* Copyright 2012-15 Advanced Micro Devices, Inc.
2  *
3  * Permission is hereby granted, free of charge, to any person obtaining a
4  * copy of this software and associated documentation files (the "Software"),
5  * to deal in the Software without restriction, including without limitation
6  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
7  * and/or sell copies of the Software, and to permit persons to whom the
8  * Software is furnished to do so, subject to the following conditions:
9  *
10  * The above copyright notice and this permission notice shall be included in
11  * all copies or substantial portions of the Software.
12  *
13  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
16  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
17  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
18  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
19  * OTHER DEALINGS IN THE SOFTWARE.
20  *
21  * Authors: AMD
22  *
23  */
24 
25 #ifndef __DC_DMCU_H__
26 #define __DC_DMCU_H__
27 
28 #include "dm_services_types.h"
29 
30 struct dmcu {
31 	struct dc_context *ctx;
32 	const struct dmcu_funcs *funcs;
33 };
34 
35 struct dmcu_funcs {
36 	bool (*load_iram)(struct dmcu *dmcu,
37 			unsigned int start_offset,
38 			const char *src,
39 			unsigned int bytes);
40 	void (*set_psr_enable)(struct dmcu *dmcu, bool enable, bool wait);
41 	void (*setup_psr)(struct dmcu *dmcu,
42 			struct dc_link *link,
43 			struct psr_context *psr_context);
44 	void (*get_psr_state)(struct dmcu *dmcu, uint32_t *psr_state);
45 	void (*set_psr_wait_loop)(struct dmcu *dmcu,
46 			unsigned int wait_loop_number);
47 	void (*get_psr_wait_loop)(unsigned int *psr_wait_loop_number);
48 };
49 
50 #endif
51