1 /* 2 * Copyright 2018 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 */ 23 #include "amdgpu.h" 24 #include "soc15.h" 25 #include "soc15_hw_ip.h" 26 #include "vega10_ip_offset.h" 27 #include "soc15_common.h" 28 #include "vega10_inc.h" 29 #include "smu9_baco.h" 30 31 int smu9_baco_get_capability(struct pp_hwmgr *hwmgr, bool *cap) 32 { 33 struct amdgpu_device *adev = (struct amdgpu_device *)(hwmgr->adev); 34 uint32_t reg, data; 35 36 *cap = false; 37 if (!phm_cap_enabled(hwmgr->platform_descriptor.platformCaps, PHM_PlatformCaps_BACO)) 38 return 0; 39 40 WREG32(0x12074, 0xFFF0003B); 41 data = RREG32(0x12075); 42 43 if (data == 0x1) { 44 reg = RREG32_SOC15(NBIF, 0, mmRCC_BIF_STRAP0); 45 46 if (reg & RCC_BIF_STRAP0__STRAP_PX_CAPABLE_MASK) 47 *cap = true; 48 } 49 50 return 0; 51 } 52 53 int smu9_baco_get_state(struct pp_hwmgr *hwmgr, enum BACO_STATE *state) 54 { 55 struct amdgpu_device *adev = (struct amdgpu_device *)(hwmgr->adev); 56 uint32_t reg; 57 58 reg = RREG32_SOC15(NBIF, 0, mmBACO_CNTL); 59 60 if (reg & BACO_CNTL__BACO_MODE_MASK) 61 /* gfx has already entered BACO state */ 62 *state = BACO_STATE_IN; 63 else 64 *state = BACO_STATE_OUT; 65 return 0; 66 } 67