| /* |
| * Copyright 2012-16 Advanced Micro Devices, Inc. |
| * |
| * 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, sublicense, |
| * 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 above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * 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 NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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. |
| * |
| * Authors: AMD |
| * |
| */ |
| |
| #ifndef __DAL_CLK_MGR_H__ |
| #define __DAL_CLK_MGR_H__ |
| |
| #include "dc.h" |
| |
| /* Public interfaces */ |
| |
| struct clk_states { |
| uint32_t dprefclk_khz; |
| }; |
| |
| struct clk_mgr_funcs { |
| /* |
| * This function should set new clocks based on the input "safe_to_lower". |
| * If safe_to_lower == false, then only clocks which are to be increased |
| * should changed. |
| * If safe_to_lower == true, then only clocks which are to be decreased |
| * should be changed. |
| */ |
| void (*update_clocks)(struct clk_mgr *clk_mgr, |
| struct dc_state *context, |
| bool safe_to_lower); |
| |
| int (*get_dp_ref_clk_frequency)(struct clk_mgr *clk_mgr); |
| |
| void (*init_clocks)(struct clk_mgr *clk_mgr); |
| |
| void (*enable_pme_wa) (struct clk_mgr *clk_mgr); |
| }; |
| |
| struct clk_mgr { |
| struct dc_context *ctx; |
| struct clk_mgr_funcs *funcs; |
| struct dc_clocks clks; |
| int dprefclk_khz; // Used by program pixel clock in clock source funcs, need to figureout where this goes |
| }; |
| |
| /* forward declarations */ |
| struct dccg; |
| |
| struct clk_mgr *dc_clk_mgr_create(struct dc_context *ctx, struct pp_smu_funcs *pp_smu, struct dccg *dccg); |
| |
| void dc_destroy_clk_mgr(struct clk_mgr *clk_mgr); |
| |
| #endif /* __DAL_CLK_MGR_H__ */ |