1 /* 2 * Copyright 2019 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 * 22 * Authors: AMD 23 * 24 */ 25 26 #ifndef _DMUB_DCN20_H_ 27 #define _DMUB_DCN20_H_ 28 29 #include "../inc/dmub_types.h" 30 31 struct dmub_srv; 32 33 /* Hardware functions. */ 34 35 void dmub_dcn20_init(struct dmub_srv *dmub); 36 37 void dmub_dcn20_reset(struct dmub_srv *dmub); 38 39 void dmub_dcn20_reset_release(struct dmub_srv *dmub); 40 41 void dmub_dcn20_backdoor_load(struct dmub_srv *dmub, 42 const struct dmub_window *cw0, 43 const struct dmub_window *cw1); 44 45 void dmub_dcn20_setup_windows(struct dmub_srv *dmub, 46 const struct dmub_window *cw2, 47 const struct dmub_window *cw3, 48 const struct dmub_window *cw4, 49 const struct dmub_window *cw5); 50 51 void dmub_dcn20_setup_mailbox(struct dmub_srv *dmub, 52 const struct dmub_region *inbox1); 53 54 uint32_t dmub_dcn20_get_inbox1_rptr(struct dmub_srv *dmub); 55 56 void dmub_dcn20_set_inbox1_wptr(struct dmub_srv *dmub, uint32_t wptr_offset); 57 58 bool dmub_dcn20_is_supported(struct dmub_srv *dmub); 59 60 bool dmub_dcn20_is_phy_init(struct dmub_srv *dmub); 61 62 #endif /* _DMUB_DCN20_H_ */ 63