1  /* SPDX-License-Identifier: MIT */
2  /*
3   * Copyright 2022 Advanced Micro Devices, Inc.
4   *
5   * Permission is hereby granted, free of charge, to any person obtaining a
6   * copy of this software and associated documentation files (the "Software"),
7   * to deal in the Software without restriction, including without limitation
8   * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9   * and/or sell copies of the Software, and to permit persons to whom the
10   * Software is furnished to do so, subject to the following conditions:
11   *
12   * The above copyright notice and this permission notice shall be included in
13   * all copies or substantial portions of the 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
19   * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20   * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21   * OTHER DEALINGS IN THE SOFTWARE.
22   *
23   * Authors: AMD
24   *
25   */
26  
27  #ifndef __DCN314_CLK_MGR_H__
28  #define __DCN314_CLK_MGR_H__
29  #include "clk_mgr_internal.h"
30  
31  #define DCN314_NUM_CLOCK_SOURCES   5
32  
33  struct dcn314_watermarks;
34  
35  struct dcn314_smu_watermark_set {
36  	struct dcn314_watermarks *wm_set;
37  	union large_integer mc_address;
38  };
39  
40  struct clk_mgr_dcn314 {
41  	struct clk_mgr_internal base;
42  	struct dcn314_smu_watermark_set smu_wm_set;
43  };
44  
45  struct dcn314_ss_info_table {
46  	uint32_t ss_divider;
47  	uint32_t ss_percentage[DCN314_NUM_CLOCK_SOURCES];
48  };
49  
50  bool dcn314_are_clock_states_equal(struct dc_clocks *a,
51  		struct dc_clocks *b);
52  
53  bool dcn314_is_spll_ssc_enabled(struct clk_mgr *clk_mgr_base);
54  
55  void dcn314_init_clocks(struct clk_mgr *clk_mgr);
56  
57  void dcn314_update_clocks(struct clk_mgr *clk_mgr_base,
58  			struct dc_state *context,
59  			bool safe_to_lower);
60  
61  void dcn314_clk_mgr_construct(struct dc_context *ctx,
62  		struct clk_mgr_dcn314 *clk_mgr,
63  		struct pp_smu_funcs *pp_smu,
64  		struct dccg *dccg);
65  
66  void dcn314_clk_mgr_destroy(struct clk_mgr_internal *clk_mgr_int);
67  
68  #endif //__DCN314_CLK_MGR_H__
69