xref: /linux/drivers/gpu/drm/amd/pm/powerplay/hwmgr/processpptables.h (revision 4fd18fc38757217c746aa063ba9e4729814dc737)
1 /*
2  * Copyright 2015 Advanced Micro Devices, Inc.
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 shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  * Interface Functions related to the BIOS PowerPlay Tables.
22  *
23  */
24 
25 #ifndef PROCESSPPTABLES_H
26 #define PROCESSPPTABLES_H
27 
28 struct pp_hwmgr;
29 struct pp_power_state;
30 struct pp_hw_power_state;
31 
32 extern const struct pp_table_func pptable_funcs;
33 
34 typedef int (*pp_tables_hw_clock_info_callback)(struct pp_hwmgr *hwmgr,
35 						struct pp_hw_power_state *hw_ps,
36 						unsigned int index,
37 						const void *clock_info);
38 
39 int pp_tables_get_num_of_entries(struct pp_hwmgr *hwmgr,
40 				 unsigned long *num_of_entries);
41 
42 int pp_tables_get_entry(struct pp_hwmgr *hwmgr,
43 			unsigned long entry_index,
44 			struct pp_power_state *ps,
45 			pp_tables_hw_clock_info_callback func);
46 
47 int pp_tables_get_response_times(struct pp_hwmgr *hwmgr,
48 				 uint32_t *vol_rep_time, uint32_t *bb_rep_time);
49 
50 #endif
51