/* * Copyright 2018 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. *
*/ #include"amdgpu.h" #include"soc15.h" #include"soc15_hw_ip.h" #include"vega10_ip_offset.h" #include"soc15_common.h" #include"vega10_inc.h" #include"vega10_ppsmc.h" #include"vega10_baco.h"
if (cur_state == state) /* aisc already in the target state */ return 0;
if (state == BACO_STATE_IN) { if (soc15_baco_program_registers(hwmgr, pre_baco_tbl,
ARRAY_SIZE(pre_baco_tbl))) { if (smum_send_msg_to_smc(hwmgr, PPSMC_MSG_EnterBaco, NULL)) return -EINVAL;
if (soc15_baco_program_registers(hwmgr, enter_baco_tbl,
ARRAY_SIZE(enter_baco_tbl))) return 0;
}
} elseif (state == BACO_STATE_OUT) { /* HW requires at least 20ms between regulator off and on */
msleep(20); /* Execute Hardware BACO exit sequence */ if (soc15_baco_program_registers(hwmgr, exit_baco_tbl,
ARRAY_SIZE(exit_baco_tbl))) { if (soc15_baco_program_registers(hwmgr, clean_baco_tbl,
ARRAY_SIZE(clean_baco_tbl))) return 0;
}
}
return -EINVAL;
}
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