Line data    Source code

       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             : #include "dmub_hw_lock_mgr.h"
      27             : #include "dc_dmub_srv.h"
      28             : #include "dc_types.h"
      29             : #include "core_types.h"
      30             : 
      31           0 : void dmub_hw_lock_mgr_cmd(struct dc_dmub_srv *dmub_srv,
      32             :                                 bool lock,
      33             :                                 union dmub_hw_lock_flags *hw_locks,
      34             :                                 struct dmub_hw_lock_inst_flags *inst_flags)
      35             : {
      36             :         union dmub_rb_cmd cmd;
      37             : 
      38           0 :         memset(&cmd, 0, sizeof(cmd));
      39           0 :         cmd.lock_hw.header.type = DMUB_CMD__HW_LOCK;
      40           0 :         cmd.lock_hw.header.sub_type = 0;
      41           0 :         cmd.lock_hw.header.payload_bytes = sizeof(struct dmub_cmd_lock_hw_data);
      42           0 :         cmd.lock_hw.lock_hw_data.client = HW_LOCK_CLIENT_DRIVER;
      43           0 :         cmd.lock_hw.lock_hw_data.lock = lock;
      44           0 :         cmd.lock_hw.lock_hw_data.hw_locks.u8All = hw_locks->u8All;
      45           0 :         memcpy(&cmd.lock_hw.lock_hw_data.inst_flags, inst_flags, sizeof(struct dmub_hw_lock_inst_flags));
      46             : 
      47           0 :         if (!lock)
      48           0 :                 cmd.lock_hw.lock_hw_data.should_release = 1;
      49             : 
      50           0 :         dc_dmub_srv_cmd_queue(dmub_srv, &cmd);
      51           0 :         dc_dmub_srv_cmd_execute(dmub_srv);
      52           0 :         dc_dmub_srv_wait_idle(dmub_srv);
      53           0 : }
      54             : 
      55           0 : void dmub_hw_lock_mgr_inbox0_cmd(struct dc_dmub_srv *dmub_srv,
      56             :                 union dmub_inbox0_cmd_lock_hw hw_lock_cmd)
      57             : {
      58             :         union dmub_inbox0_data_register data = { 0 };
      59             : 
      60           0 :         data.inbox0_cmd_lock_hw = hw_lock_cmd;
      61           0 :         dc_dmub_srv_clear_inbox0_ack(dmub_srv);
      62           0 :         dc_dmub_srv_send_inbox0_cmd(dmub_srv, data);
      63           0 :         dc_dmub_srv_wait_for_inbox0_ack(dmub_srv);
      64           0 : }
      65             : 
      66           0 : bool should_use_dmub_lock(struct dc_link *link)
      67             : {
      68           0 :         if (link->psr_settings.psr_version == DC_PSR_VERSION_SU_1)
      69             :                 return true;
      70           0 :         return false;
      71             : }